mirror of https://github.com/tc39/test262.git
54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/annex-b-fns/func-skip-early-err-switch.case
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// - src/annex-b-fns/func/if-decl-else-stmt.template
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/*---
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description: Extension not observed when creation of variable binding would produce an early error (switch statement) (IfStatement with a declaration in the first 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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ii. If replacing the FunctionDeclaration f with a VariableStatement that
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has F as a BindingIdentifier would not produce any Early Errors for
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func and F is not an element of BoundNames of argumentsList, then
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[...]
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---*/
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(function() {
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assert.throws(ReferenceError, function() {
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f;
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}, 'An initialized binding is not created prior to evaluation');
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assert.sameValue(
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typeof f,
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'undefined',
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'An uninitialized binding is not created prior to evaluation'
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);
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switch (0) {
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default:
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let f;
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if (true) function f() { } else ;
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}
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assert.throws(ReferenceError, function() {
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f;
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}, 'An initialized binding is not created following evaluation');
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assert.sameValue(
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typeof f,
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'undefined',
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'An uninitialized binding is not created following evaluation'
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);
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}());
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