mirror of https://github.com/tc39/test262.git
57 lines
1.9 KiB
JavaScript
57 lines
1.9 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/annex-b-fns/func-no-skip-try.case
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// - src/annex-b-fns/func/if-stmt-else-decl.template
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/*---
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description: Extension is observed when creation of variable binding would not produce an early error (try statement) (IfStatement with a declaration in the second statement position in function scope)
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esid: sec-functiondeclarations-in-ifstatement-statement-clauses
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flags: [generated, noStrict]
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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.3.3.1 Changes to FunctionDeclarationInstantiation
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[...]
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2. If instantiatedVarNames does not contain F, then
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a. Perform ! varEnvRec.CreateMutableBinding(F, false).
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b. Perform varEnvRec.InitializeBinding(F, undefined).
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c. Append F to instantiatedVarNames.
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[...]
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B.3.5 VariableStatements in Catch Blocks
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[...]
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- It is a Syntax Error if any element of the BoundNames of CatchParameter
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also occurs in the VarDeclaredNames of Block unless CatchParameter is
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CatchParameter:BindingIdentifier and that element is only bound by a
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VariableStatement, the VariableDeclarationList of a for statement, or the
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ForBinding of a for-in statement.
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---*/
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(function() {
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assert.sameValue(
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f, undefined, 'Initialized binding created prior to evaluation'
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);
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try {
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throw null;
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} catch (f) {
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if (false) ; else function f() { return 123; }
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}
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assert.sameValue(
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typeof f,
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'function',
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'binding value is updated following evaluation'
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);
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assert.sameValue(f(), 123);
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}());
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