test262/test/annexB/language/global-code/if-decl-else-stmt-global-skip-early-err-block.js

// This file was procedurally generated from the following sources:
// - src/annex-b-fns/global-skip-early-err-block.case
// - src/annex-b-fns/global/if-decl-else-stmt.template
/*---
description: Extension not observed when creation of variable binding would produce an early error (Block statement) (IfStatement with a declaration in the first statement position in the global 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.3.3.2 Changes to GlobalDeclarationInstantiation

    [...]
    b. If replacing the FunctionDeclaration f with a VariableStatement that has
       F as a BindingIdentifier would not produce any Early Errors for script,
       then
    [...]
---*/
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'
);

{
let f = 123;

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'
);