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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/language/global-code/script-decl-func-err-non-configurable.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/language/global-code/script-decl-func-err-non-configurable.js')
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@@ -0,0 +1,107 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-globaldeclarationinstantiation
+es6id: 15.1.8
+description: >
+ Declaration of function when there is a corresponding global property that is
+ non-configurable but *not* a writable and configurable data property.
+info: |
+ [...]
+ 9. Let declaredFunctionNames be a new empty List.
+ 10. For each d in varDeclarations, in reverse list order do
+ a. If d is neither a VariableDeclaration or a ForBinding, then
+ i. Assert: d is either a FunctionDeclaration or a
+ GeneratorDeclaration.
+ ii. NOTE If there are multiple FunctionDeclarations for the same name,
+ the last declaration is used.
+ iii. Let fn be the sole element of the BoundNames of d.
+ iv. If fn is not an element of declaredFunctionNames, then
+ 1. Let fnDefinable be ? envRec.CanDeclareGlobalFunction(fn).
+ 2. If fnDefinable is false, throw a TypeError exception.
+
+ 8.1.1.4.16 CanDeclareGlobalFunction
+
+ [...]
+ 6. If existingProp.[[Configurable]] is true, return true.
+ 7. If IsDataDescriptor(existingProp) is true and existingProp has attribute
+ values {[[Writable]]: true, [[Enumerable]]: true}, return true.
+ 8. Return false.
+---*/
+
+Object.defineProperty(
+ this,
+ 'data1',
+ { configurable: false, value: 0, writable: true, enumerable: false }
+);
+
+Object.defineProperty(
+ this,
+ 'data2',
+ { configurable: false, value: 0, writable: false, enumerable: true }
+);
+
+Object.defineProperty(
+ this,
+ 'data3',
+ { configurable: false, value: 0, writable: false, enumerable: false }
+);
+
+Object.defineProperty(
+ this,
+ 'accessor1',
+ {
+ configurable: false,
+ get: function() {},
+ set: function() {},
+ enumerable: true
+ }
+);
+
+Object.defineProperty(
+ this,
+ 'accessor2',
+ {
+ configurable: false,
+ get: function() {},
+ set: function() {},
+ enumerable: true
+ }
+);
+
+assert.throws(TypeError, function() {
+ $262.evalScript('var x; function data1() {}');
+}, 'writable, non-enumerable data property');
+assert.throws(ReferenceError, function() {
+ x;
+}, 'bindings not created for writable, non-enumerable data property');
+
+assert.throws(TypeError, function() {
+ $262.evalScript('var x; function data2() {}');
+}, 'non-writable, enumerable data property');
+assert.throws(ReferenceError, function() {
+ x;
+}, 'bindings not created for non-writable, enumerable data property');
+
+assert.throws(TypeError, function() {
+ $262.evalScript('var x; function data3() {}');
+}, 'non-writable, non-enumerable data property');
+assert.throws(ReferenceError, function() {
+ x;
+}, 'bindings not created for non-writable, non-enumerable data property');
+
+assert.throws(TypeError, function() {
+ $262.evalScript('var x; function accessor1() {}');
+}, 'enumerable accessor property');
+assert.throws(ReferenceError, function() {
+ x;
+}, 'bindings not created for enumerableaccessor property');
+
+assert.throws(TypeError, function() {
+ $262.evalScript('var x; function accessor2() {}');
+}, 'non-enumerable accessor property');
+assert.throws(ReferenceError, function() {
+ x;
+}, 'bindings not created for non-enumerableaccessor property');
+
+reportCompare(0, 0);