js/src/jsapi-tests/testDefineGetterSetterNonEnumerable.cpp
author Igor Bukanov <igor@mir2.org>
Mon, 20 Feb 2012 11:58:00 +0100
changeset 93571 30798fdc5bad0d4b899faf5f979e1caf5a901484
parent 93570 7a39ee24bd89ea0d9f3be6988b3642e64389af7a
child 93572 081b574dbad3ea95b40a458e036eabc7ed7ee7d3
permissions -rw-r--r--
bug 737624 - memory-only encoding/decoding of scripts and functions. r=:luke The patch shrinks the API presented in jsxdrapi.h down to 4 functions to encode/decode scripts and interpreted functions to/from the memory. The newly introduced implementation header vm/Xdr.h replaces the former JSXDRState with the template class XDRState parametrized by the enum type with two constants, XDR_ENCODE and XDR_DECODE. This way a compiler can fully eliminate the former runtime checks for the decoding/encoding mode. As a drawback this required to explicitly instantiate the xdr implementation as I do not want to put all the xdr code to header files. The memory-only XDR allows to avoid coping filename and to-be-atomized chars to a temporary buffer as the code can just access the buffer directly. Another change is that new XDRScript takes as a parameter its parent script. This allowed to avoid keeping filename in XDRState and simplify the filename management. Another change is the removal of JS_HAS_HDR. As CloneScript uses XDR to copy a script, JS_HAS_XDR cannot be disabled.

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: set ts=8 sw=4 et tw=99:
 */

#include "tests.h"

static JSBool
native(JSContext *cx, unsigned argc, jsval *vp)
{
    return JS_TRUE;
}

static const char PROPERTY_NAME[] = "foo";

BEGIN_TEST(testDefineGetterSetterNonEnumerable)
{
    jsvalRoot vobj(cx);
    JSObject *obj = JS_NewObject(cx, NULL, NULL, NULL);
    CHECK(obj);
    vobj = OBJECT_TO_JSVAL(obj);

    jsvalRoot vget(cx);
    JSFunction *funGet = JS_NewFunction(cx, native, 0, 0, NULL, "get");
    CHECK(funGet);
    JSObject *funGetObj = JS_GetFunctionObject(funGet);
    vget = OBJECT_TO_JSVAL(funGetObj);

    jsvalRoot vset(cx);
    JSFunction *funSet = JS_NewFunction(cx, native, 1, 0, NULL, "set");
    CHECK(funSet);
    JSObject *funSetObj = JS_GetFunctionObject(funSet);
    vset = OBJECT_TO_JSVAL(funSetObj);

    CHECK(JS_DefineProperty(cx, JSVAL_TO_OBJECT(vobj), PROPERTY_NAME,
                            JSVAL_VOID,
                            JS_DATA_TO_FUNC_PTR(JSPropertyOp, funGetObj),
                            JS_DATA_TO_FUNC_PTR(JSStrictPropertyOp, funSetObj),
                            JSPROP_GETTER | JSPROP_SETTER | JSPROP_ENUMERATE));

    CHECK(JS_DefineProperty(cx, JSVAL_TO_OBJECT(vobj), PROPERTY_NAME,
                            JSVAL_VOID,
                            JS_DATA_TO_FUNC_PTR(JSPropertyOp, funGetObj),
                            JS_DATA_TO_FUNC_PTR(JSStrictPropertyOp, funSetObj),
                            JSPROP_GETTER | JSPROP_SETTER | JSPROP_PERMANENT));

    JSBool found = JS_FALSE;
    unsigned attrs = 0;
    CHECK(JS_GetPropertyAttributes(cx, JSVAL_TO_OBJECT(vobj), PROPERTY_NAME,
                                   &attrs, &found));
    CHECK(found);
    CHECK(attrs & JSPROP_GETTER);
    CHECK(attrs & JSPROP_SETTER);
    CHECK(attrs & JSPROP_PERMANENT);
    CHECK(!(attrs & JSPROP_ENUMERATE));

    return true;
}
END_TEST(testDefineGetterSetterNonEnumerable)