1 files changed, 84 insertions, 0 deletions
diff --git a/js/src/tests/ecma_5/Global/cross-global-implicit-this.js b/js/src/tests/ecma_5/Global/cross-global-implicit-this.js
new file mode 100644
index 000000000..90c6e8a95
--- /dev/null
+++ b/js/src/tests/ecma_5/Global/cross-global-implicit-this.js
@@ -0,0 +1,84 @@
+// |reftest| skip-if(!xulRuntime.shell) -- needs evaluate()
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 671947;
+var summary = "Unqualified function invocation uses the global object of the called property as |this|";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+this.name = "o";
+
+function f() {
+  return this ? this.name : "t";
+}
+function g() {
+  "use strict";
+  return this ? this.name : "u";
+}
+function h() {
+  return this ? this.name : "v";
+}
+
+var sb = newGlobal();
+sb.parent = this;
+sb.name = "i";
+sb.f = f;
+sb.g = g;
+
+sb.evaluate(
+       '\n' +
+       ' this.a = { name: "a", f: f, g: g };\n' +
+       ' this.b = { name: "b", f: f, g: g };\n' +
+       ' Object.defineProperty(this, "h", { get: (function(){ return parent.h; })});\n' +
+       ' Object.defineProperty(a, "h", { get: (function(){ return parent.h; })});\n' +
+       ' Object.defineProperty(b, "h", { get: (function(){ return parent.h; })});\n' +
+       '');
+
+
+// Three of the first four cases pass undefined (promoted inside the callee to
+// the callee's global object).  a.f() is the one exception, which passes the
+// base, a, as the this object.
+assertEq(sb.evaluate('(function(){return f();})();'), "o");
+assertEq(sb.evaluate('(function(){return (1,f)();})();'), "o");
+assertEq(sb.evaluate('(function(){return a.f();})();'), "a");
+assertEq(sb.evaluate('(function(){return eval("f()");})();'), "o");
+
+// Same cases as above, but wrapped in a with. The first and last of these cases
+// pass b, the object scoped by the with, as the this value.  a.f() still passes
+// the explicit base, a. (1,f)() is a little tricksier - this passes undefined
+// (promoted to the callee global object) since the comma operator calls
+// GetValue on the reference (see ES5 11.14.).
+assertEq(sb.evaluate('(function(){with(b){ return (function(){ return f();})(); }})();'), "b");
+assertEq(sb.evaluate('(function(){with(b){ return (function(){ return (1,f)();})(); }})();'), "o");
+assertEq(sb.evaluate('(function(){with(b){ return (function(){ return a.f();})(); }})();'), "a");
+assertEq(sb.evaluate('(function(){with(b){ return (function(){ return eval("f()");})(); }})();'), "b");
+
+// Same tests as above, but with a strict callee.  We expect the same results,
+// except undefined this is not replaced with the global object.
+assertEq(sb.evaluate('(function(){return g();})();'), "u");
+assertEq(sb.evaluate('(function(){return (1,g)();})();'), "u");
+assertEq(sb.evaluate('(function(){return a.g();})();'), "a");
+assertEq(sb.evaluate('(function(){return eval("g()");})();'), "u");
+assertEq(sb.evaluate('(function(){with(b){ return g(); }})();'), "b");
+assertEq(sb.evaluate('(function(){with(b){ return (1,g)(); }})();'), "u");
+assertEq(sb.evaluate('(function(){with(b){ return a.g(); }})();'), "a");
+assertEq(sb.evaluate('(function(){with(b){ return (function(){ return eval("g()");})(); }})();'), "b");
+
+/* Same as the first set, but h is a getter property. */
+assertEq(sb.evaluate('(function(){return h();})();'), "o");
+assertEq(sb.evaluate('(function(){return (1,h)();})();'), "o");
+assertEq(sb.evaluate('(function(){return a.h();})();'), "a");
+assertEq(sb.evaluate('(function(){return eval("h()");})();'), "o");
+assertEq(sb.evaluate('(function(){with(b){ return h(); }})();'), "b");
+assertEq(sb.evaluate('(function(){with(b){ return (1,h)(); }})();'), "o");
+assertEq(sb.evaluate('(function(){with(b){ return a.h(); }})();'), "a");
+assertEq(sb.evaluate('(function(){with(b){ return (function(){ return eval("h()");})(); }})();'), "b");
+
+if (typeof reportCompare === "function");
+  reportCompare(true, true);