// This file was procedurally generated from the following sources: // - src/annex-b-fns/func-skip-early-err-try.case // - src/annex-b-fns/func/if-decl-else-stmt.template /*--- description: Extension is observed when creation of variable binding would not produce an early error (try 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 [...] 2. If instantiatedVarNames does not contain F, then a. Perform ! varEnvRec.CreateMutableBinding(F, false). b. Perform varEnvRec.InitializeBinding(F, undefined). c. Append F to instantiatedVarNames. [...] B.3.5 VariableStatements in Catch Blocks [...] - It is a Syntax Error if any element of the BoundNames of CatchParameter also occurs in the VarDeclaredNames of Block unless CatchParameter is CatchParameter:BindingIdentifier and that element is only bound by a VariableStatement, the VariableDeclarationList of a for statement, or the ForBinding of a for-in statement. ---*/ (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' ); try { throw {}; } catch ({ f }) { 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' ); }()); reportCompare(0, 0);