| // This file was procedurally generated from the following sources: |
| // - src/annex-b-fns/func-skip-early-err-for-in.case |
| // - src/annex-b-fns/func/if-decl-else-stmt.template |
| /*--- |
| description: Extension not observed when creation of variable binding would produce an early error (for-of statement) (IfStatement with a declaration in the first statement position in function scope) |
| esid: sec-functiondeclarations-in-ifstatement-statement-clauses |
| flags: [generated, noStrict] |
| info: | |
| The following rules for IfStatement augment those in 13.6: |
| |
| IfStatement[Yield, Return]: |
| if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else Statement[?Yield, ?Return] |
| if ( Expression[In, ?Yield] ) Statement[?Yield, ?Return] else FunctionDeclaration[?Yield] |
| if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else FunctionDeclaration[?Yield] |
| if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] |
| |
| |
| B.3.3.1 Changes to FunctionDeclarationInstantiation |
| |
| [...] |
| ii. If replacing the FunctionDeclaration f with a VariableStatement that |
| has F as a BindingIdentifier would not produce any Early Errors for |
| func and F is not an element of BoundNames of argumentsList, then |
| [...] |
| ---*/ |
| |
| (function() { |
| assert.throws(ReferenceError, function() { |
| f; |
| }, 'An initialized binding is not created prior to evaluation'); |
| assert.sameValue( |
| typeof f, |
| 'undefined', |
| 'An uninitialized binding is not created prior to evaluation' |
| ); |
| |
| for (let f in { key: 0 }) { |
| |
| if (true) function f() { } else ; |
| |
| } |
| |
| assert.throws(ReferenceError, function() { |
| f; |
| }, 'An initialized binding is not created following evaluation'); |
| assert.sameValue( |
| typeof f, |
| 'undefined', |
| 'An uninitialized binding is not created following evaluation' |
| ); |
| }()); |