| // This file was procedurally generated from the following sources: |
| // - src/annex-b-fns/func-existing-block-fn-update.case |
| // - src/annex-b-fns/func/switch-dflt.template |
| /*--- |
| description: Variable-scoped binding is updated (Funtion declaration in the `default` clause of a `switch` statement in function scope) |
| esid: sec-web-compat-functiondeclarationinstantiation |
| flags: [generated, noStrict] |
| info: | |
| B.3.3.1 Changes to FunctionDeclarationInstantiation |
| |
| [...] |
| 3. When the FunctionDeclaration f is evaluated, perform the following steps |
| in place of the FunctionDeclaration Evaluation algorithm provided in |
| 14.1.21: |
| a. Let fenv be the running execution context's VariableEnvironment. |
| b. Let fenvRec be fenv's EnvironmentRecord. |
| c. Let benv be the running execution context's LexicalEnvironment. |
| d. Let benvRec be benv's EnvironmentRecord. |
| e. Let fobj be ! benvRec.GetBindingValue(F, false). |
| f. Perform ! fenvRec.SetMutableBinding(F, fobj, false). |
| g. Return NormalCompletion(empty). |
| ---*/ |
| var updated; |
| |
| (function() { |
| { |
| function f() { |
| return 'first declaration'; |
| } |
| } |
| |
| switch (1) { |
| default: |
| function f() { return 'second declaration'; } |
| } |
| |
| updated = f; |
| }()); |
| |
| assert.sameValue(typeof updated, 'function'); |
| assert.sameValue(updated(), 'second declaration'); |