js/src/tests/non262/lexical-environment/nondefinable-function-same-script.js


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// |reftest| skip-if(!xulRuntime.shell)

function assertEvaluateAndIndirectEvalThrows(str) {
  assertThrowsInstanceOf(() => evaluate(str), TypeError);
  assertThrowsInstanceOf(() => (1,eval)(str), TypeError);
}

// Regular vars
assertEvaluateAndIndirectEvalThrows(`var NaN; function NaN() {}`);

// for-of vars
assertEvaluateAndIndirectEvalThrows(`for (var NaN of []); function NaN() {}`);

// Annex B.3.3 synthesized vars
assertEvaluateAndIndirectEvalThrows(`{ function NaN() {} } function NaN() {}`);

// Non-data properties
Object.defineProperty(this, 'foo', { set: function() {} });
assertEvaluateAndIndirectEvalThrows(`var foo; function foo() {}`);
assertEvaluateAndIndirectEvalThrows(`for (var foo of []); function foo() {}`);
assertEvaluateAndIndirectEvalThrows(`{ function foo() {} } function foo() {}`);

if (typeof reportCompare === "function")
  reportCompare(true, true);