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-rw-r--r--js/src/tests/non262/destructuring/bug1396261.js44
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/destructuring/bug1396261.js b/js/src/tests/non262/destructuring/bug1396261.js
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+++ b/js/src/tests/non262/destructuring/bug1396261.js
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+// Ensure array or object literals with trailing property accessors are not
+// treated as nested destructuring patterns in assignment destructuring
+// contexts.
+
+// Array destructuring with normal element.
+[{a: 0}.x] = [];
+[[0].x] = [];
+
+// Array destructuring with spread element.
+[...{a: 0}.x] = [];
+[...[0].x] = [];
+
+// Object destructuring with normal property.
+({a: {b: 0}.x} = {});
+({a: [0].x} = {});
+
+// Object destructuring with spread property.
+({...{b: 0}.x} = {});
+({...[0].x} = {});
+
+// Object literal with initializer shorthand in destructuring context.
+assertThrowsInstanceOf(() => Function(`[{a = 0}.x] = [];`), SyntaxError);
+assertThrowsInstanceOf(() => Function(`[...{a = 0}.x] = [];`), SyntaxError);
+assertThrowsInstanceOf(() => Function(`({a: {b = 0}.x} = {});`), SyntaxError);
+assertThrowsInstanceOf(() => Function(`({...{b = 0}.x} = {});`), SyntaxError);
+
+// Object destructuring with "eval" or "arguments" shorthand in strict mode.
+(function() {
+ "use strict";
+
+ // Ensure "eval" resp. "arguments" is not treated as an assignment.
+ [{eval}.x] = [];
+ [...{eval}.x] = [];
+ ({a: {eval}.x} = {});
+ ({...{eval}.x} = {});
+
+ [{arguments}.x] = [];
+ [...{arguments}.x] = [];
+ ({a: {arguments}.x} = {});
+ ({...{arguments}.x} = {});
+})();
+
+if (typeof reportCompare === "function")
+ reportCompare(0, 0);