Proxy: apply

This commit is contained in:
Leonardo Balter 2015-06-02 19:16:34 -04:00
parent 3f214e715f
commit 450b830026
7 changed files with 149 additions and 0 deletions

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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.13
description: >
trap is called with handler object as its context, and parameters are:
target, the call context and and an array list with the called arguments
info: >
[[Call]] (thisArgument, argumentsList)
9. Return Call(trap, handler, «target, thisArgument, argArray»).
---*/
var _target, _args, _handler, _context;
var target = function(a, b) { return a + b; };
var handler = {
apply: function(t, c, args) {
_handler = this;
_target = t;
_context = c;
_args = args;
}
};
var p = new Proxy(target, handler);
var context = {};
p.call(context, 1, 2);
assert.sameValue(_handler, handler, "trap context is the handler object");
assert.sameValue(_target, target, "first parameter is the target object");
assert.sameValue(_context, context, "second parameter is the call context");
assert.sameValue(_args.length, 2, "arguments list contains all call arguments");
assert.sameValue(_args[0], 1, "arguments list has first call argument");
assert.sameValue(_args[1], 2, "arguments list has second call argument");

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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.13
description: >
Return the result from the trap method.
info: >
[[Call]] (thisArgument, argumentsList)
9. Return Call(trap, handler, «target, thisArgument, argArray»).
---*/
var target = function(a, b) { return a + b; };
var result = {};
var handler = {
apply: function(t, c, args) {
return result;
}
};
var p = new Proxy(target, handler);
assert.sameValue(p.call(), result);

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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.13
description: >
[[Call]] (thisArgument, argumentsList)
2. If handler is null, throw a TypeError exception.
---*/
var p = Proxy.revocable(function() {}, {});
p.revoke();
assert.throws(TypeError, function() {
p.proxy();
});

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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.13
description: >
Return is an abrupt completion
includes: [Test262Error.js]
---*/
var target = function(a, b) { return a + b; };
var p = new Proxy(target, {
apply: function(t, c, args) {
throw new Test262Error();
}
});
assert.throws(Test262Error, function() {
p.call();
});

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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.13
description: >
Throws if trap is not callable.
---*/
var p = new Proxy(function() {}, {
apply: {}
});
assert.throws(TypeError, function() {
p();
});

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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.13
description: >
If trap is undefined, propagate the call to the target object.
info: >
[[Call]] (thisArgument, argumentsList)
7. If trap is undefined, then Return Call(target, thisArgument,
argumentsList).
---*/
var target = function(a, b) {
return a + b;
};
var p = new Proxy(target, {});
assert.sameValue(p(1, 2), 3);

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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.13
description: >
If trap is undefined, propagate the call to the target object.
info: >
[[Call]] (thisArgument, argumentsList)
7. If trap is undefined, then Return Call(target, thisArgument,
argumentsList).
---*/
var target = function(a, b) {
return a + b;
};
var p = new Proxy(target, {
apply: undefined
});
assert.sameValue(p(1, 2), 3);