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-rw-r--r--js/src/tests/ecma_6/Syntax/yield-as-identifier.js54
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Syntax/yield-as-identifier.js b/js/src/tests/ecma_6/Syntax/yield-as-identifier.js
new file mode 100644
index 000000000..665b0b11c
--- /dev/null
+++ b/js/src/tests/ecma_6/Syntax/yield-as-identifier.js
@@ -0,0 +1,54 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 1288459;
+var summary = "|yield| is sometimes a valid identifier";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+function t(code)
+{
+ var strictSemi = " 'use strict'; " + code;
+ var strictASI = " 'use strict' \n " + code;
+
+ var creationFunctions = ["Function"];
+ if (typeof evaluate === "function")
+ creationFunctions.push("evaluate");
+ if (typeof parseModule === "function")
+ creationFunctions.push("parseModule");
+
+ for (var func of creationFunctions)
+ {
+ var g = newGlobal();
+ var f = g[func];
+
+ if (func === "parseModule")
+ assertThrowsInstanceOf(() => f(code), g.SyntaxError);
+ else
+ f(code);
+
+ assertThrowsInstanceOf(() => f(strictSemi), g.SyntaxError);
+ assertThrowsInstanceOf(() => f(strictASI), g.SyntaxError);
+ }
+}
+
+t("var yield = 3;");
+t("let yield = 3;");
+t("const yield = 3;");
+t("for (var yield = 3; ; ) break;");
+t("for (let yield = 3; ; ) break;");
+t("for (const yield = 3; ; ) break;");
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);
+
+print("Tests complete");