Generate tests

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Mike Pennisi 2016-06-02 14:51:51 -04:00 committed by Leonardo Balter
parent 744cb4d2c9
commit a969e853e7
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1305 changed files with 100223 additions and 0 deletions

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-init-iter-close.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Iterator is closed when not exhausted by pattern evaluation (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
---*/
var doneCallCount = 0;
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
return { value: null, done: false };
},
return: function() {
doneCallCount += 1;
return {};
}
};
};
var callCount = 0;
var f;
f = ([x] = iter) => {
assert.sameValue(doneCallCount, 1);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-init-iter-get-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Abrupt completion returned by GetIterator (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
---*/
var iter = {};
iter[Symbol.iterator] = function() {
throw new Test262Error();
};
var f = ([x] = iter) => {};
assert.throws(Test262Error, function() {
f();
});

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-init-iter-no-close.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Iterator is not closed when exhausted by pattern evaluation (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
---*/
var doneCallCount = 0;
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
return { value: null, done: true };
},
return: function() {
doneCallCount += 1;
return {};
}
};
};
var callCount = 0;
var f;
f = ([x] = iter) => {
assert.sameValue(doneCallCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-name-iter-val.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding with normal value iteration (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([x, y, z] = [1, 2, 3]) => {
assert.sameValue(x, 1);
assert.sameValue(y, 2);
assert.sameValue(z, 3);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var f;
f = ([[x, y, z] = [4, 5, 6]] = []) => {
assert.sameValue(x, 4);
assert.sameValue(y, 5);
assert.sameValue(z, 6);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var f;
f = ([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) => {
assert.sameValue(x, 7);
assert.sameValue(y, 8);
assert.sameValue(z, 9);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var first = 0;
var second = 0;
function* g() {
first += 1;
yield;
second += 1;
};
var callCount = 0;
var f;
f = ([[,] = g()] = []) => {
assert.sameValue(first, 1);
assert.sameValue(second, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
function* g() {
callCount += 1;
};
var callCount = 0;
var f;
f = ([[,] = g()] = [[]]) => {
assert.sameValue(callCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var initCount = 0;
var iterCount = 0;
var iter = function*() { iterCount += 1; }();
var callCount = 0;
var f;
f = ([[] = function() { initCount += 1; return iter; }()] = []) => {
assert.sameValue(initCount, 1);
assert.sameValue(iterCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var initCount = 0;
var callCount = 0;
var f;
f = ([[] = function() { initCount += 1; }()] = [[23]]) => {
assert.sameValue(initCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var values = [2, 1, 3];
var callCount = 0;
var f;
f = ([[...x] = values] = []) => {
assert(Array.isArray(x));
assert.sameValue(x[0], 2);
assert.sameValue(x[1], 1);
assert.sameValue(x[2], 3);
assert.sameValue(x.length, 3);
assert.notSameValue(x, values);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var values = [2, 1, 3];
var initCount = 0;
var callCount = 0;
var f;
f = ([[...x] = function() { initCount += 1; }()] = [values]) => {
assert(Array.isArray(x));
assert.sameValue(x[0], 2);
assert.sameValue(x[1], 1);
assert.sameValue(x[2], 3);
assert.sameValue(x.length, 3);
assert.notSameValue(x, values);
assert.sameValue(initCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Nested array destructuring with a null value (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
---*/
var f = ([[x]] = [null]) => {};
assert.throws(TypeError, function() {
f();
});

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@ -0,0 +1,62 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Destructuring initializer with an exhausted iterator (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([x = 23] = []) => {
assert.sameValue(x, 23);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding does assign name to arrow functions (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([arrow = () => {}] = []) => {
assert.sameValue(arrow.name, 'arrow');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,64 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns `name` to "anonymous" classes (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([cls = class {}, xCls = class X {}] = []) => {
assert.sameValue(cls.name, 'cls');
assert.notSameValue(xCls.name, 'xCls');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,64 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([cover = (function () {}), xCover = (0, function() {})] = []) => {
assert.sameValue(cover.name, 'cover');
assert.notSameValue(xCover.name, 'xCover');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,64 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns name to "anonymous" functions (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([fn = function () {}, xFn = function x() {}] = []) => {
assert.sameValue(fn.name, 'fn');
assert.notSameValue(xFn.name, 'xFn');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,64 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns name to "anonymous" generator functions (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([gen = function* () {}, xGen = function* x() {}] = []) => {
assert.sameValue(gen.name, 'gen');
assert.notSameValue(xGen.name, 'xGen');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,58 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Destructuring initializer with a "hole" (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...] 6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([x = 23] = [,]) => {
assert.sameValue(x, 23);
// another statement
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,67 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var initCount = 0;
function counter() {
initCount += 1;
}
var callCount = 0;
var f;
f = ([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) => {
assert.sameValue(w, null);
assert.sameValue(x, 0);
assert.sameValue(y, false);
assert.sameValue(z, '');
assert.sameValue(initCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,55 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Destructuring initializer returns an abrupt completion (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
---*/
var f = ([x = (function() { throw new Test262Error(); })()] = [undefined]) => {};
assert.throws(Test262Error, function() {
f();
});

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@ -0,0 +1,61 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Destructuring initializer with an undefined value (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
[...]
7. If environment is undefined, return PutValue(lhs, v).
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([x = 23] = [undefined]) => {
assert.sameValue(x, 23);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,62 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
---*/
var f = ([ x = unresolvableReference ] = []) => {};
assert.throws(ReferenceError, function() {
f();
});

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@ -0,0 +1,65 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding when value iteration completes (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([x] = []) => {
assert.sameValue(x, undefined);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,60 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding when value iteration was completed previously (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
[...]
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([_, x] = []) => {
assert.sameValue(x, undefined);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error forwarding when IteratorStep returns an abrupt completion (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
---*/
var g = {};
g[Symbol.iterator] = function() {
return {
next: function() {
throw new Test262Error();
}
};
};
var f = ([x] = g) => {};
assert.throws(Test262Error, function() {
f();
});

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@ -0,0 +1,74 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error forwarding when IteratorValue returns an abrupt completion (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(v).
---*/
var poisonedValue = Object.defineProperty({}, 'value', {
get: function() {
throw new Test262Error();
}
});
var g = {};
g[Symbol.iterator] = function() {
return {
next: function() {
return poisonedValue;
}
};
};
var f = ([x] = g) => {};
assert.throws(Test262Error, function() {
f();
});

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@ -0,0 +1,71 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding when value iteration was completed previously (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([x, y, z] = [1, 2, 3]) => {
assert.sameValue(x, 1);
assert.sameValue(y, 2);
assert.sameValue(z, 3);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with object binding pattern and initializer is used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var f;
f = ([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) => {
assert.sameValue(x, 44);
assert.sameValue(y, 55);
assert.sameValue(z, 66);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-obj-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with object binding pattern and initializer is not used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var f;
f = ([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) => {
assert.sameValue(x, 11);
assert.sameValue(y, 22);
assert.sameValue(z, 33);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,73 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with object binding pattern and initializer is used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var f;
f = ([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) => {
assert.sameValue(v, 444);
assert.sameValue(x, 555);
assert.sameValue(z, 666);
assert.throws(ReferenceError, function() {
u;
});
assert.throws(ReferenceError, function() {
w;
});
assert.throws(ReferenceError, function() {
y;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,73 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: BindingElement with object binding pattern and initializer is not used (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var f;
f = ([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) => {
assert.sameValue(v, 777);
assert.sameValue(x, 888);
assert.sameValue(z, 999);
assert.throws(ReferenceError, function() {
u;
});
assert.throws(ReferenceError, function() {
w;
});
assert.throws(ReferenceError, function() {
y;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,64 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Nested object destructuring with a null value (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
---*/
var f = ([{ x }] = [null]) => {};
assert.throws(TypeError, function() {
f();
});

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@ -0,0 +1,64 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Nested object destructuring with a value of `undefined` (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ObjectBindingPattern
1. Let valid be RequireObjectCoercible(value).
2. ReturnIfAbrupt(valid).
---*/
var f = ([{ x }] = []) => {};
assert.throws(TypeError, function() {
f();
});

View File

@ -0,0 +1,68 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elision-exhausted.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Elision accepts exhausted iterator (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
[...]
2. Return NormalCompletion(empty).
---*/
var iter = function*() {}();
iter.next();
var callCount = 0;
var f;
f = ([,] = iter) => {
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,71 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elision-step-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Elision advances iterator and forwards abrupt completions (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
---*/
var following = 0;
var iter =function* () {
throw new Test262Error();
following += 1;
}();
var f = ([,] = iter) => {};
assert.throws(Test262Error, function() {
f();
});
iter.next();
assert.sameValue(following, 0, 'Iterator was properly closed.');

View File

@ -0,0 +1,77 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elision.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Elision advances iterator (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
---*/
var first = 0;
var second = 0;
function* g() {
first += 1;
yield;
second += 1;
};
var callCount = 0;
var f;
f = ([,] = g()) => {
assert.sameValue(first, 1);
assert.sameValue(second, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,60 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-empty.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: No iteration occurs for an "empty" array binding pattern (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
---*/
var iterations = 0;
var iter = function*() {
iterations += 1;
}();
var callCount = 0;
var f;
f = ([] = iter) => {
assert.sameValue(iterations, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,84 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element containing an array BindingElementList pattern (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ([...[x, y, z]] = [3, 4, 5]) => {
assert.sameValue(x, 3);
assert.sameValue(y, 4);
assert.sameValue(z, 5);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,90 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element containing an elision (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elision ]
1. Return the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
as the argument.
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
Elision : ,
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
2. Return NormalCompletion(empty).
---*/
var first = 0;
var second = 0;
function* g() {
first += 1;
yield;
second += 1;
};
var callCount = 0;
var f;
f = ([...[,]] = g()) => {
assert.sameValue(first, 1);
assert.sameValue(second, 1);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,73 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element containing an "empty" array pattern (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ ]
1. Return NormalCompletion(empty).
---*/
var iterations = 0;
var iter = function*() {
iterations += 1;
}();
var callCount = 0;
var f;
f = ([...[]] = iter) => {
assert.sameValue(iterations, 1);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,69 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element containing a rest element (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
---*/
var values = [1, 2, 3];
var callCount = 0;
var f;
f = ([...[...x]] = values) => {
assert(Array.isArray(x));
assert.sameValue(x.length, 3);
assert.sameValue(x[0], 1);
assert.sameValue(x[1], 2);
assert.sameValue(x[2], 3);
assert.notSameValue(x, values);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,57 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Rest element following elision elements (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
---*/
var iter = (function*() { throw new Test262Error(); })();
var f = ([, ...x] = iter) => {};
assert.throws(Test262Error, function() {
f();
});

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@ -0,0 +1,65 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id-elision.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element following elision elements (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
ArrayBindingPattern : [ Elisionopt BindingRestElement ]
1. If Elision is present, then
a. Let status be the result of performing
IteratorDestructuringAssignmentEvaluation of Elision with
iteratorRecord as the argument.
b. ReturnIfAbrupt(status).
2. Return the result of performing IteratorBindingInitialization for
BindingRestElement with iteratorRecord and environment as arguments.
---*/
var values = [1, 2, 3, 4, 5];
var callCount = 0;
var f;
f = ([ , , ...x] = values) => {
assert(Array.isArray(x));
assert.sameValue(x.length, 3);
assert.sameValue(x[0], 3);
assert.sameValue(x[1], 4);
assert.sameValue(x[2], 5);
assert.notSameValue(x, values);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,61 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: RestElement applied to an exhausted iterator (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
b. If iteratorRecord.[[done]] is true, then
i. If environment is undefined, return PutValue(lhs, A).
ii. Return InitializeReferencedBinding(lhs, A).
---*/
var callCount = 0;
var f;
f = ([, , ...x] = [1, 2]) => {
assert(Array.isArray(x));
assert.sameValue(x.length, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,68 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error forwarding when IteratorStep returns an abrupt completion (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
a. If iteratorRecord.[[done]] is false,
i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
true.
iii. ReturnIfAbrupt(next).
---*/
var first = 0;
var second = 0;
var iter = function*() {
first += 1;
throw new Test262Error();
second += 1;
}();
var f = ([...x] = iter) => {};
assert.throws(Test262Error, function() {
f();
});
iter.next();
assert.sameValue(first, 1);
assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');

View File

@ -0,0 +1,70 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error forwarding when IteratorValue returns an abrupt completion (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
environment).
2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
[...]
c. Let nextValue be IteratorValue(next).
d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
true.
e. ReturnIfAbrupt(nextValue).
---*/
var poisonedValue = Object.defineProperty({}, 'value', {
get: function() {
throw new Test262Error();
}
});
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
return poisonedValue;
}
};
};
var f = ([...x] = iter) => {};
assert.throws(Test262Error, function() {
f();
});

View File

@ -0,0 +1,62 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Lone rest element (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingIdentifier
[...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
[...]
f. Let status be CreateDataProperty(A, ToString (n), nextValue).
[...]
---*/
var values = [1, 2, 3];
var callCount = 0;
var f;
f = ([...x] = values) => {
assert(Array.isArray(x));
assert.sameValue(x.length, 3);
assert.sameValue(x[0], 1);
assert.sameValue(x[1], 2);
assert.sameValue(x[2], 3);
assert.notSameValue(x, values);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-init-ary.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Reset element (nested array pattern) does not support initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
negative: SyntaxError
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
---*/
var callCount = 0;
var f;
f = ([...[ x ] = []] = []) => {
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-init-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Reset element (identifier) does not support initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
negative: SyntaxError
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
---*/
var callCount = 0;
var f;
f = ([...x = []] = []) => {
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-init-obj.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Reset element (nested object pattern) does not support initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
negative: SyntaxError
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
---*/
var callCount = 0;
var f;
f = ([...{ x } = []] = []) => {
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element (array binding pattern) may not be followed by any element (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
negative: SyntaxError
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
---*/
var callCount = 0;
var f;
f = ([...[x], y] = [1, 2, 3]) => {
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element (identifier) may not be followed by any element (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
negative: SyntaxError
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
---*/
var callCount = 0;
var f;
f = ([...x, y] = [1, 2, 3]) => {
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element (object binding pattern) may not be followed by any element (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
negative: SyntaxError
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ArrayBindingPattern[Yield] :
[ Elisionopt BindingRestElement[?Yield]opt ]
[ BindingElementList[?Yield] ]
[ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
---*/
var callCount = 0;
var f;
f = ([...{ x }, y] = [1, 2, 3]) => {
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,62 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-obj-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element containing an object binding pattern (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
---*/
var callCount = 0;
var f;
f = ([...{ length }] = [1, 2, 3]) => {
assert.sameValue(length, 3);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,70 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Rest element containing an object binding pattern (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingRestElement : ... BindingPattern
1. Let A be ArrayCreate(0).
[...]
3. Repeat
[...]
b. If iteratorRecord.[[done]] is true, then
i. Return the result of performing BindingInitialization of
BindingPattern with A and environment as the arguments.
[...]
---*/
var callCount = 0;
var f;
f = ([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) => {
assert.sameValue(v, 7);
assert.sameValue(w, 8);
assert.sameValue(x, 9);
assert.sameValue(y, undefined);
assert.sameValue(z, 3);
assert.throws(ReferenceError, function() {
length;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,51 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-init-null.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Value specifed for object binding pattern must be object coercible (null) (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
---*/
var f = ({} = null) => {};
assert.throws(TypeError, function() {
f();
});

View File

@ -0,0 +1,51 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-init-undefined.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Value specifed for object binding pattern must be object coercible (undefined) (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
---*/
var f = ({} = undefined) => {};
assert.throws(TypeError, function() {
f();
});

View File

@ -0,0 +1,61 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-empty.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: No property access occurs for an "empty" object binding pattern (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
Runtime Semantics: BindingInitialization
ObjectBindingPattern : { }
1. Return NormalCompletion(empty).
---*/
var accessCount = 0;
var obj = Object.defineProperty({}, 'attr', {
get: function() {
accessCount += 1;
}
});
var callCount = 0;
var f;
f = ({} = obj) => {
assert.sameValue(accessCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,58 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-get-value-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error thrown when accessing the corresponding property of the value object (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. Let v be GetV(value, propertyName).
5. ReturnIfAbrupt(v).
---*/
var poisonedProperty = Object.defineProperty({}, 'poisoned', {
get: function() {
throw new Test262Error();
}
});
var f = ({ poisoned } = poisonedProperty) => {};
assert.throws(Test262Error, function() {
f();
});

View File

@ -0,0 +1,62 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns `name` to arrow functions (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
---*/
var callCount = 0;
var f;
f = ({ arrow = () => {} } = {}) => {
assert.sameValue(arrow.name, 'arrow');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns `name` to "anonymous" classes (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
---*/
var callCount = 0;
var f;
f = ({ cls = class {}, xCls = class X {} } = {}) => {
assert.sameValue(cls.name, 'cls');
assert.notSameValue(xCls.name, 'xCls');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
---*/
var callCount = 0;
var f;
f = ({ cover = (function () {}), xCover = (0, function() {}) } = {}) => {
assert.sameValue(cover.name, 'cover');
assert.notSameValue(xCover.name, 'xCover');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns name to "anonymous" functions (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
---*/
var callCount = 0;
var f;
f = ({ fn = function () {}, xFn = function x() {} } = {}) => {
assert.sameValue(fn.name, 'fn');
assert.notSameValue(xFn.name, 'xFn');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: SingleNameBinding assigns name to "anonymous" generator functions (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
---*/
var callCount = 0;
var f;
f = ({ gen = function* () {}, xGen = function* x() {} } = {}) => {
assert.sameValue(gen.name, 'gen');
assert.notSameValue(xGen.name, 'xGen');
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,66 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-skipped.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
[...]
---*/
var initCount = 0;
function counter() {
initCount += 1;
}
var callCount = 0;
var f;
f = ({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) => {
assert.sameValue(w, null);
assert.sameValue(x, 0);
assert.sameValue(y, false);
assert.sameValue(z, '');
assert.sameValue(initCount, 0);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,58 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-throws.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error thrown when evaluating the initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
---*/
function thrower() {
throw new Test262Error();
}
var f = ({ x = thrower() } = {}) => {};
assert.throws(Test262Error, function() {
f();
});

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@ -0,0 +1,62 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
---*/
var f = ({ x = unresolvableReference } = {}) => {};
assert.throws(ReferenceError, function() {
f();
});

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@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
---*/
var callCount = 0;
var f;
f = ({ x, } = { x: 23 }) => {
assert.sameValue(x, 23);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,59 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-list-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Binding property list evaluation is interrupted by an abrupt completion (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPropertyList : BindingPropertyList , BindingProperty
1. Let status be the result of performing BindingInitialization for
BindingPropertyList using value and environment as arguments.
2. ReturnIfAbrupt(status).
---*/
var initCount = 0;
function thrower() {
throw new Test262Error();
}
var f = ({ a, b = thrower(), c = ++initCount } = {}) => {};
assert.throws(Test262Error, function() {
f();
});
assert.sameValue(initCount, 0);

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@ -0,0 +1,65 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-ary-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Object binding pattern with "nested" array binding pattern using initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var callCount = 0;
var f;
f = ({ w: [x, y, z] = [4, 5, 6] } = {}) => {
assert.sameValue(x, 4);
assert.sameValue(y, 5);
assert.sameValue(z, 6);
assert.throws(ReferenceError, function() {
w;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,56 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
---*/
var callCount = 0;
var f;
f = ({ x: [y], } = { x: [45] }) => {
assert.sameValue(y,45);
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,53 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Object binding pattern with "nested" array binding pattern taking the `null` value (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var f = ({ w: [x, y, z] = [4, 5, 6] } = { w: null }) => {};
assert.throws(TypeError, function() {
f();
});

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@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-ary.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Object binding pattern with "nested" array binding pattern not using initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var callCount = 0;
var f;
f = ({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) => {
assert.sameValue(x, 7);
assert.sameValue(y, undefined);
assert.sameValue(z, undefined);
assert.throws(ReferenceError, function() {
w;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,55 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-eval-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Evaluation of property name returns an abrupt completion (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingProperty : PropertyName : BindingElement
1. Let P be the result of evaluating PropertyName
2. ReturnIfAbrupt(P).
---*/
function thrower() {
throw new Test262Error();
}
var f = ({ [thrower()]: x } = {}) => {};
assert.throws(Test262Error, function() {
f();
});

View File

@ -0,0 +1,60 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error thrown when accessing the corresponding property of the value object (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
1. Let v be GetV(value, propertyName).
2. ReturnIfAbrupt(v).
---*/
var initEvalCount = 0;
var poisonedProperty = Object.defineProperty({}, 'poisoned', {
get: function() {
throw new Test262Error();
}
});
var f = ({ poisoned: x = ++initEvalCount } = poisonedProperty) => {};
assert.throws(Test262Error, function() {
f();
});
assert.sameValue(initEvalCount, 0);

View File

@ -0,0 +1,78 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Destructuring initializer is not evaluated when value is not `undefined` (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
[...]
---*/
var initCount = 0;
function counter() {
initCount += 1;
}
var callCount = 0;
var f;
f = ({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) => {
assert.sameValue(t, null);
assert.sameValue(v, 0);
assert.sameValue(x, false);
assert.sameValue(z, '');
assert.sameValue(initCount, 0);
assert.throws(ReferenceError, function() {
s;
});
assert.throws(ReferenceError, function() {
u;
});
assert.throws(ReferenceError, function() {
w;
});
assert.throws(ReferenceError, function() {
y;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

View File

@ -0,0 +1,58 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Error thrown when evaluating the initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
---*/
function thrower() {
throw new Test262Error();
}
var f = ({ x: y = thrower() } = {}) => {};
assert.throws(Test262Error, function() {
f();
});

View File

@ -0,0 +1,62 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Destructuring initializer is an unresolvable reference (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
BindingElement : BindingPattern Initializeropt
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
6.2.3.1 GetValue (V)
1. ReturnIfAbrupt(V).
2. If Type(V) is not Reference, return V.
3. Let base be GetBase(V).
4. If IsUnresolvableReference(V), throw a ReferenceError exception.
---*/
var f = ({ x: y = unresolvableReference } = {}) => {};
assert.throws(ReferenceError, function() {
f();
});

View File

@ -0,0 +1,59 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-id-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Binding as specified via property name, identifier, and initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ({ x: y = 33 } = { }) => {
assert.sameValue(y, 33);
assert.throws(ReferenceError, function() {
x;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,60 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Trailing comma is allowed following BindingPropertyList (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3 Destructuring Binding Patterns
ObjectBindingPattern[Yield] :
{ }
{ BindingPropertyList[?Yield] }
{ BindingPropertyList[?Yield] , }
---*/
var callCount = 0;
var f;
f = ({ x: y, } = { x: 23 }) => {
assert.sameValue(y, 23);
assert.throws(ReferenceError, function() {
x;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,59 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-id.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Binding as specified via property name and identifier (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var f;
f = ({ x: y } = { x: 23 }) => {
assert.sameValue(y, 23);
assert.throws(ReferenceError, function() {
x;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,65 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-obj-init.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Object binding pattern with "nested" object binding pattern using initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var callCount = 0;
var f;
f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) => {
assert.sameValue(x, 4);
assert.sameValue(y, 5);
assert.sameValue(z, 6);
assert.throws(ReferenceError, function() {
w;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,53 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) => {};
assert.throws(TypeError, function() {
f();
});

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@ -0,0 +1,53 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
// - src/dstr-binding/error/arrow-function-dflt.template
/*---
description: Object binding pattern with "nested" object binding pattern taking the `null` value (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var f = ({ w: { x, y, z } = undefined } = { }) => {};
assert.throws(TypeError, function() {
f();
});

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@ -0,0 +1,63 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-obj.case
// - src/dstr-binding/default/arrow-function-dflt.template
/*---
description: Object binding pattern with "nested" object binding pattern not using initializer (arrow function expression (default parameter))
esid: sec-arrow-function-definitions-runtime-semantics-evaluation
es6id: 14.2.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ArrowFunction : ArrowParameters => ConciseBody
[...]
4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
[...]
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var callCount = 0;
var f;
f = ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) => {
assert.sameValue(x, undefined);
assert.sameValue(y, undefined);
assert.sameValue(z, 7);
assert.throws(ReferenceError, function() {
w;
});
callCount = callCount + 1;
};
f();
assert.sameValue(callCount, 1, 'arrow function invoked exactly once');

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@ -0,0 +1,97 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-init-iter-close.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: Iterator is closed when not exhausted by pattern evaluation (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
---*/
var doneCallCount = 0;
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
return { value: null, done: false };
},
return: function() {
doneCallCount += 1;
return {};
}
};
};
var callCount = 0;
var C = class {
*method([x] = iter) {
assert.sameValue(doneCallCount, 1);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

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@ -0,0 +1,84 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-init-iter-get-err.case
// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
/*---
description: Abrupt completion returned by GetIterator (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
---*/
var iter = {};
iter[Symbol.iterator] = function() {
throw new Test262Error();
};
var C = class {
*method([x] = iter) {}
};
var c = new C();
assert.throws(Test262Error, function() {
c.method();
});

View File

@ -0,0 +1,97 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-init-iter-no-close.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: Iterator is not closed when exhausted by pattern evaluation (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [Symbol.iterator, destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
[...]
4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
result).
[...]
---*/
var doneCallCount = 0;
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
return { value: null, done: true };
},
return: function() {
doneCallCount += 1;
return {};
}
};
};
var callCount = 0;
var C = class {
*method([x] = iter) {
assert.sameValue(doneCallCount, 0);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,96 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-name-iter-val.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: SingleNameBinding with normal value iteration (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
4. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
c. ReturnIfAbrupt(next).
d. If next is false, set iteratorRecord.[[done]] to true.
e. Else,
[...]
i. Let v be IteratorValue(next).
ii. If v is an abrupt completion, set
iteratorRecord.[[done]] to true.
iii. ReturnIfAbrupt(v).
5. If iteratorRecord.[[done]] is true, let v be undefined.
[...]
8. Return InitializeReferencedBinding(lhs, v).
---*/
var callCount = 0;
var C = class {
*method([x, y, z] = [1, 2, 3]) {
assert.sameValue(x, 1);
assert.sameValue(y, 2);
assert.sameValue(z, 3);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,88 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var C = class {
*method([[x, y, z] = [4, 5, 6]] = []) {
assert.sameValue(x, 4);
assert.sameValue(y, 5);
assert.sameValue(z, 6);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,89 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
var C = class {
*method([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
assert.sameValue(x, 7);
assert.sameValue(y, 8);
assert.sameValue(z, 9);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,95 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var first = 0;
var second = 0;
function* g() {
first += 1;
yield;
second += 1;
};
var callCount = 0;
var C = class {
*method([[,] = g()] = []) {
assert.sameValue(first, 1);
assert.sameValue(second, 0);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,92 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [generators, destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var callCount = 0;
function* g() {
callCount += 1;
};
var callCount = 0;
var C = class {
*method([[,] = g()] = [[]]) {
assert.sameValue(callCount, 0);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,90 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var initCount = 0;
var iterCount = 0;
var iter = function*() { iterCount += 1; }();
var callCount = 0;
var C = class {
*method([[] = function() { initCount += 1; return iter; }()] = []) {
assert.sameValue(initCount, 1);
assert.sameValue(iterCount, 0);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,88 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var initCount = 0;
var callCount = 0;
var C = class {
*method([[] = function() { initCount += 1; }()] = [[23]]) {
assert.sameValue(initCount, 0);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,92 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var values = [2, 1, 3];
var callCount = 0;
var C = class {
*method([[...x] = values] = []) {
assert(Array.isArray(x));
assert.sameValue(x[0], 2);
assert.sameValue(x[1], 1);
assert.sameValue(x[2], 3);
assert.sameValue(x.length, 3);
assert.notSameValue(x, values);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,95 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
// - src/dstr-binding/default/cls-expr-gen-meth-dflt.template
/*---
description: BindingElement with array binding pattern and initializer is not used (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
1. If iteratorRecord.[[done]] is false, then
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
[...]
e. Else,
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var values = [2, 1, 3];
var initCount = 0;
var callCount = 0;
var C = class {
*method([[...x] = function() { initCount += 1; }()] = [values]) {
assert(Array.isArray(x));
assert.sameValue(x[0], 2);
assert.sameValue(x[1], 1);
assert.sameValue(x[2], 3);
assert.sameValue(x.length, 3);
assert.notSameValue(x, values);
assert.sameValue(initCount, 0);
callCount = callCount + 1;
}
};
new C().method().next();
assert.sameValue(callCount, 1, 'method invoked exactly once');

View File

@ -0,0 +1,91 @@
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
// - src/dstr-binding/error/cls-expr-gen-meth-dflt.template
/*---
description: Nested array destructuring with a null value (class expression method (default parameter))
esid: sec-class-definitions-runtime-semantics-evaluation
es6id: 14.5.16
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPattern Initializeropt
1. If iteratorRecord.[[done]] is false, then
[...]
e. Else
i. Let v be IteratorValue(next).
[...]
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
13.3.3.5 Runtime Semantics: BindingInitialization
BindingPattern : ArrayBindingPattern
1. Let iterator be GetIterator(value).
2. ReturnIfAbrupt(iterator).
---*/
var C = class {
*method([[x]] = [null]) {}
};
var c = new C();
assert.throws(TypeError, function() {
c.method();
});

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