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45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-assignment/array-elem-init-fn-name-fn.case
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// - src/dstr-assignment/default/assignment-expr.template
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/*---
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description: Assignment of function `name` attribute (FunctionExpression) (AssignmentExpression)
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esid: sec-variable-statement-runtime-semantics-evaluation
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es6id: 13.3.2.4
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features: [class, destructuring-binding]
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flags: [generated]
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includes: [propertyHelper.js]
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info: |
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VariableDeclaration : BindingPattern Initializer
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1. Let rhs be the result of evaluating Initializer.
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2. Let rval be GetValue(rhs).
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3. ReturnIfAbrupt(rval).
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4. Return the result of performing BindingInitialization for
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BindingPattern passing rval and undefined as arguments.
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AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt
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[...] 7. If Initializer is present and value is undefined and
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IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of
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DestructuringAssignmentTarget are both true, then
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a. Let hasNameProperty be HasOwnProperty(v, "name").
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b. ReturnIfAbrupt(hasNameProperty).
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c. If hasNameProperty is false, perform SetFunctionName(v,
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GetReferencedName(lref)).
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---*/
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var xFn, fn;
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var result;
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var vals = [];
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result = [ xFn = function x() {}, fn = function() {} ] = vals;
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assert(xFn.name !== 'xFn');
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assert.sameValue(fn.name, 'fn');
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verifyNotEnumerable(fn, 'name');
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verifyNotWritable(fn, 'name');
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verifyConfigurable(fn, 'name');
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assert.sameValue(result, vals);
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