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Diffstat (limited to 'js/src/tests/ecma/ExecutionContexts/10.1.4-7.js')
-rw-r--r-- | js/src/tests/ecma/ExecutionContexts/10.1.4-7.js | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/js/src/tests/ecma/ExecutionContexts/10.1.4-7.js b/js/src/tests/ecma/ExecutionContexts/10.1.4-7.js new file mode 100644 index 000000000..5b3aa3adf --- /dev/null +++ b/js/src/tests/ecma/ExecutionContexts/10.1.4-7.js @@ -0,0 +1,77 @@ +/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +/** + File Name: 10.1.4-7.js + ECMA Section: 10.1.4 Scope Chain and Identifier Resolution + Description: + Every execution context has associated with it a scope chain. This is + logically a list of objects that are searched when binding an Identifier. + When control enters an execution context, the scope chain is created and + is populated with an initial set of objects, depending on the type of + code. When control leaves the execution context, the scope chain is + destroyed. + + During execution, the scope chain of the execution context is affected + only by WithStatement. When execution enters a with block, the object + specified in the with statement is added to the front of the scope chain. + When execution leaves a with block, whether normally or via a break or + continue statement, the object is removed from the scope chain. The object + being removed will always be the first object in the scope chain. + + During execution, the syntactic production PrimaryExpression : Identifier + is evaluated using the following algorithm: + + 1. Get the next object in the scope chain. If there isn't one, go to step 5. + 2. Call the [[HasProperty]] method of Result(l), passing the Identifier as + the property. + 3. If Result(2) is true, return a value of type Reference whose base object + is Result(l) and whose property name is the Identifier. + 4. Go to step 1. + 5. Return a value of type Reference whose base object is null and whose + property name is the Identifier. + The result of binding an identifier is always a value of type Reference with + its member name component equal to the identifier string. + Author: christine@netscape.com + Date: 12 november 1997 +*/ +var SECTION = "10.1.4-7"; +var VERSION = "ECMA_1"; +startTest(); + +writeHeaderToLog( SECTION + " Scope Chain and Identifier Resolution"); + +new TestCase( "SECTION", + "with MyObject, eval should be [object Global].eval " ); +test(); + +function test() { + for ( gTc=0; gTc < gTestcases.length; gTc++ ) { + + var MYOBJECT = new MyObject(); + var INPUT = 2; + gTestcases[gTc].description += ( INPUT +"" ); + + with ( MYOBJECT ) { + delete( eval ); + gTestcases[gTc].actual = eval( INPUT ); + gTestcases[gTc].expect = INPUT; + } + + gTestcases[gTc].passed = writeTestCaseResult( + gTestcases[gTc].expect, + gTestcases[gTc].actual, + gTestcases[gTc].description +" = "+ + gTestcases[gTc].actual ); + + gTestcases[gTc].reason += ( gTestcases[gTc].passed ) ? "" : "wrong value "; + } + return ( gTestcases ); +} + +function MyObject() { + this.eval = new Function( "x", "return(Math.pow(Number(x),2))" ); +} |