mirror of https://github.com/tc39/test262.git
57 lines
1.7 KiB
JavaScript
57 lines
1.7 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/annex-b-fns/global-existing-non-enumerable-global-init.case
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// - src/annex-b-fns/global/if-decl-no-else.template
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/*---
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description: Variable binding is left in place by legacy function hoisting. CreateGlobalVariableBinding leaves the binding as non-enumerable even if it has the chance to change it to be enumerable. (IfStatement without an else clause in the global scope)
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esid: sec-functiondeclarations-in-ifstatement-statement-clauses
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flags: [generated, noStrict]
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includes: [fnGlobalObject.js, propertyHelper.js]
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info: |
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The following rules for IfStatement augment those in 13.6:
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IfStatement[Yield, Return]:
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if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else Statement[?Yield, ?Return]
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if ( Expression[In, ?Yield] ) Statement[?Yield, ?Return] else FunctionDeclaration[?Yield]
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if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else FunctionDeclaration[?Yield]
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if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield]
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B.3.3.3 Changes to GlobalDeclarationInstantiation
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[...]
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Perform ? varEnvRec.CreateGlobalVarBinding(F, true).
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[...]
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---*/
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var global = fnGlobalObject();
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Object.defineProperty(global, 'f', {
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value: 'x',
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enumerable: false,
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writable: true,
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configurable: true
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});
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$262.evalScript(`
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assert.sameValue(f, 'x');
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verifyProperty(global, 'f', {
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enumerable: false,
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writable: true,
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configurable: true
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}, { restore: true });
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`);
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$262.evalScript(`
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if (true) function f() { return 'inner declaration'; }
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`);
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$262.evalScript(`
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assert.sameValue(f(), 'inner declaration');
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verifyProperty(global, 'f', {
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enumerable: false,
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writable: true,
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configurable: true
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});
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`);
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