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-rw-r--r--js/src/jit-test/tests/asm.js/testBug999790.js65
1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/asm.js/testBug999790.js b/js/src/jit-test/tests/asm.js/testBug999790.js
new file mode 100644
index 000000000..85f92c22f
--- /dev/null
+++ b/js/src/jit-test/tests/asm.js/testBug999790.js
@@ -0,0 +1,65 @@
+function CanBeConstructed(f) {
+ var caught = false;
+ try {
+ new f;
+ } catch (e) {
+ caught = true;
+ }
+ return !caught;
+}
+
+function IsConstructedFunction(f) {
+ return f.hasOwnProperty('length')
+ && f.hasOwnProperty('name')
+ && f.hasOwnProperty('prototype')
+ && f.prototype.hasOwnProperty('constructor')
+ && f.prototype.constructor === f;
+}
+
+function IsntConstructedFunction(f) {
+ return !f.hasOwnProperty('length')
+ && !f.hasOwnProperty('name')
+ && !f.hasOwnProperty('prototype')
+}
+
+var m = function() {
+ "use asm"
+ function g(){}
+ return g;
+};
+assertEq(CanBeConstructed(m), true, "asm.js modules can't be constructed");
+
+var objM = new m;
+assertEq(IsConstructedFunction(objM), true);
+
+var g = m();
+assertEq(CanBeConstructed(g), true, "asm.js functions can't be constructed");
+// g is a ctor returning an primitive value, thus an empty object
+assertEq(Object.getOwnPropertyNames(new g).length, 0);
+
+var n = function() {
+ "use asm"
+ function g(){return 42.0}
+ function h(){return 42}
+ return {
+ g: g,
+ h: h
+ };
+};
+assertEq(CanBeConstructed(n), true, "asm.js modules can't be constructed");
+
+var objN = new n;
+// objN is an object with attributes g and h
+assertEq(IsntConstructedFunction(objN), true);
+assertEq(objN.hasOwnProperty('g'), true);
+assertEq(objN.hasOwnProperty('h'), true);
+
+assertEq(IsConstructedFunction(objN.g), true);
+assertEq(IsConstructedFunction(objN.h), true);
+
+var h = n().h;
+assertEq(CanBeConstructed(h), true, "asm.js functions can't be constructed");
+// h is a ctor returning an primitive value, thus an empty object
+assertEq(Object.getOwnPropertyNames(new h).length, 0);
+
+assertEq(typeof(function() {"use asm"; return {}}.prototype) !== 'undefined', true);