[PATCH 3/9] jscript: Implement Object.prototype.__defineGetter__.

[Gabriel Ivăncescu]

Signed-off-by: Gabriel Ivăncescu <gabrielopcode at gmail.com>
---
 dlls/jscript/object.c             | 47 +++++++++++++++++
 dlls/mshtml/tests/documentmode.js | 88 +++++++++++++++++++++++++++++++
 2 files changed, 135 insertions(+)

diff --git a/dlls/jscript/object.c b/dlls/jscript/object.c
index f375491..5045db3 100644
--- a/dlls/jscript/object.c
+++ b/dlls/jscript/object.c
@@ -289,6 +289,52 @@ done:
     return hres;
 }
 
+static HRESULT Object_defineGetter(script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
+{
+    property_desc_t desc;
+    const WCHAR *name;
+    jsstr_t *name_str;
+    jsdisp_t *jsthis;
+    HRESULT hres;
+
+    TRACE("\n");
+
+    if(!is_object_instance(vthis) || !get_object(vthis) || !(jsthis = to_jsdisp(get_object(vthis))))
+        goto done;
+
+    hres = to_flat_string(ctx, argc ? argv[0] : jsval_undefined(), &name_str, &name);
+    if(FAILED(hres))
+        return hres;
+
+    if(argc < 2 || !is_object_instance(argv[1]) || !get_object(argv[1]))
+        hres = JS_E_FUNCTION_EXPECTED;
+    else {
+        hres = S_OK;
+        desc.getter = to_jsdisp(get_object(argv[1]));
+        if(!desc.getter) {
+            FIXME("getter is not JS object\n");
+            hres = E_NOTIMPL;
+        }
+        /* FIXME: Check IsCallable */
+    }
+
+    if(SUCCEEDED(hres)) {
+        desc.flags = desc.mask = PROPF_CONFIGURABLE | PROPF_ENUMERABLE;
+        desc.explicit_getter = TRUE;
+        desc.explicit_setter = FALSE;
+        desc.explicit_value  = FALSE;
+        desc.setter = NULL;
+        hres = jsdisp_define_property(jsthis, name, &desc);
+    }
+    jsstr_release(name_str);
+    if(FAILED(hres))
+        return hres;
+done:
+    if(r)
+        *r = jsval_undefined();
+    return S_OK;
+}
+
 HRESULT Object_get_proto_(script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
 {
     jsdisp_t *jsthis;
@@ -360,6 +406,7 @@ static void Object_destructor(jsdisp_t *dispex)
 }
 
 static const builtin_prop_t Object_props[] = {
+    {L"__defineGetter__",      Object_defineGetter,          PROPF_METHOD|PROPF_ES6|2},
     {L"hasOwnProperty",        Object_hasOwnProperty,        PROPF_METHOD|1},
     {L"isPrototypeOf",         Object_isPrototypeOf,         PROPF_METHOD|1},
     {L"propertyIsEnumerable",  Object_propertyIsEnumerable,  PROPF_METHOD|1},
diff --git a/dlls/mshtml/tests/documentmode.js b/dlls/mshtml/tests/documentmode.js
index 2902902..18dd65e 100644
--- a/dlls/mshtml/tests/documentmode.js
+++ b/dlls/mshtml/tests/documentmode.js
@@ -1415,6 +1415,94 @@ sync_test("__proto__", function() {
     }
 });
 
+sync_test("__defineGetter__", function() {
+    var v = document.documentMode;
+    var r, x = 42;
+
+    if(v < 11) {
+        ok(x.__defineGetter__ === undefined, "x.__defineGetter__ = " + x.__defineGetter__);
+        ok(!("__defineGetter__" in Object), "Object.__defineGetter__ = " + Object.__defineGetter__);
+        return;
+    }
+    ok(Object.prototype.hasOwnProperty("__defineGetter__"), "__defineGetter__ is not a property of Object.prototype");
+    ok(Object.prototype.__defineGetter__.length === 2, "__defineGetter__.length = " + Object.prototype.__defineGetter__.length);
+
+    function getter() { return "wine"; }
+    function setter(val) { }
+
+    r = x.__defineGetter__("foo", getter);
+    ok(r === undefined, "__defineGetter__ on 42 returned " + r);
+    ok(x.foo === undefined, "42.foo = " + x.foo);
+
+    x = {};
+    r = x.__defineGetter__("foo", getter);
+    ok(r === undefined, "__defineGetter__ returned " + r);
+    ok(x.foo === "wine", "x.foo = " + x.foo);
+    r = Object.getOwnPropertyDescriptor(x, "foo");
+    ok(r.value === undefined, "x.foo value = " + r.value);
+    ok(r.get === getter, "x.foo get = " + r.get);
+    ok(r.set === undefined, "x.foo set = " + r.set);
+    ok(r.writable === undefined, "x.foo writable = " + r.writable);
+    ok(r.enumerable === true, "x.foo enumerable = " + r.enumerable);
+    ok(r.configurable === true, "x.foo configurable = " + r.configurable);
+
+    Object.defineProperty(x, "foo", { get: undefined, set: setter, configurable: false });
+    r = Object.getOwnPropertyDescriptor(x, "foo");
+    ok(r.value === undefined, "x.foo setter value = " + r.value);
+    ok(r.get === undefined, "x.foo setter get = " + r.get);
+    ok(r.set === setter, "x.foo setter set = " + r.set);
+    ok(r.writable === undefined, "x.foo setter writable = " + r.writable);
+    ok(r.enumerable === true, "x.foo setter enumerable = " + r.enumerable);
+    ok(r.configurable === false, "x.foo setter configurable = " + r.configurable);
+    try {
+        x.__defineGetter__("foo", getter);
+        ok(false, "expected exception calling __defineGetter__ on non-configurable property");
+    }catch(e) {
+        ok(e.number === 0xa13d6 - 0x80000000, "__defineGetter__ on non-configurable property threw exception " + e.number);
+    }
+
+    r = Object.prototype.__defineGetter__.call(undefined, "bar", getter);
+    ok(r === undefined, "__defineGetter__ on undefined returned " + r);
+    r = Object.prototype.__defineGetter__.call(null, "bar", getter);
+    ok(r === undefined, "__defineGetter__ on null returned " + r);
+    r = x.__defineGetter__(undefined, getter);
+    ok(r === undefined, "__defineGetter__ undefined prop returned " + r);
+    ok(x["undefined"] === "wine", "x.undefined = " + x["undefined"]);
+    r = x.__defineGetter__(false, getter);
+    ok(r === undefined, "__defineGetter__ undefined prop returned " + r);
+    ok(x["false"] === "wine", "x.false = " + x["false"]);
+
+    try {
+        x.__defineGetter__("bar", "string");
+        ok(false, "expected exception calling __defineGetter__ with string");
+    }catch(e) {
+        ok(e.number === 0xa138a - 0x80000000, "__defineGetter__ with string threw exception " + e.number);
+    }
+    try {
+        x.__defineGetter__("bar", undefined);
+        ok(false, "expected exception calling __defineGetter__ with undefined");
+    }catch(e) {
+        ok(e.number === 0xa138a - 0x80000000, "__defineGetter__ with undefined threw exception " + e.number);
+    }
+    try {
+        x.__defineGetter__("bar", null);
+        ok(false, "expected exception calling __defineGetter__ with null");
+    }catch(e) {
+        ok(e.number === 0xa138a - 0x80000000, "__defineGetter__ with null threw exception " + e.number);
+    }
+    try {
+        Object.prototype.__defineGetter__.call(x, "bar");
+        ok(false, "expected exception calling __defineGetter__ with only one arg");
+    }catch(e) {
+        ok(e.number === 0xa138a - 0x80000000, "__defineGetter__ with only one arg threw exception " + e.number);
+    }
+
+    x.bar = "test";
+    ok(x.bar === "test", "x.bar = " + x.bar);
+    x.__defineGetter__("bar", getter);
+    ok(x.bar === "wine", "x.bar with getter = " + x.bar);
+});
+
 async_test("postMessage", function() {
     var v = document.documentMode;
     var onmessage_called = false;
-- 
2.34.1