JSTests/test262/test/annexB/language/function-code/if-decl-no-else-func-skip-early-err.js

// This file was procedurally generated from the following sources:
// - src/annex-b-fns/func-skip-early-err.case
// - src/annex-b-fns/func/if-decl-no-else.template
/*---
description: Extension not observed when creation of variable binding would produce an early error (IfStatement without an else clause 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
    [...]
---*/
var init, after;

(function() {
  let f = 123;
  init = f;

  if (true) function f() {  }

  after = f;
}());

assert.sameValue(init, 123, 'binding is not initialized to `undefined`');
assert.sameValue(after, 123, 'value is not updated following evaluation');