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76 lines
2.2 KiB
JavaScript
76 lines
2.2 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/**
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File Name: statement-003
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Corresponds To: 12.6.3-7-n.js
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ECMA Section: 12.6.3 The for...in Statement
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Description:
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The production IterationStatement : for ( LeftHandSideExpression in Expression )
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Statement is evaluated as follows:
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1. Evaluate the Expression.
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2. Call GetValue(Result(1)).
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3. Call ToObject(Result(2)).
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4. Let C be "normal completion".
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5. Get the name of the next property of Result(3) that doesn't have the
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DontEnum attribute. If there is no such property, go to step 14.
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6. Evaluate the LeftHandSideExpression ( it may be evaluated repeatedly).
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7. Call PutValue(Result(6), Result(5)). PutValue( V, W ):
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1. If Type(V) is not Reference, generate a runtime error.
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2. Call GetBase(V).
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3. If Result(2) is null, go to step 6.
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4. Call the [[Put]] method of Result(2), passing GetPropertyName(V)
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for the property name and W for the value.
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5. Return.
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6. Call the [[Put]] method for the global object, passing
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GetPropertyName(V) for the property name and W for the value.
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7. Return.
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8. Evaluate Statement.
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9. If Result(8) is a value completion, change C to be "normal completion
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after value V" where V is the value carried by Result(8).
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10. If Result(8) is a break completion, go to step 14.
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11. If Result(8) is a continue completion, go to step 5.
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12. If Result(8) is a return completion, return Result(8).
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13. Go to step 5.
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14. Return C.
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Author: christine@netscape.com
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Date: 11 september 1997
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*/
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var SECTION = "statement-003";
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var VERSION = "JS1_4";
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var TITLE = "The for..in statement";
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startTest();
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writeHeaderToLog( SECTION + " "+ TITLE);
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var result = "Failed";
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var exception = "No exception thrown";
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var expect = "Passed";
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try {
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var o = new MyObject();
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var result = 0;
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eval("for ( this in o) {\n"
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+ "result += this[p];\n"
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+ "}\n");
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} catch ( e ) {
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result = expect;
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exception = e.toString();
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}
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new TestCase(
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SECTION,
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"bad left-hand side expression" +
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" (threw " + exception +")",
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expect,
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result );
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test();
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function MyObject() {
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this.value = 2;
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this[0] = 4;
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return this;
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}
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