зеркало из https://github.com/mozilla/gecko-dev.git
749 строки
19 KiB
C++
749 строки
19 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* JavaScript Debugging support - Value and Property support
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*/
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#include "jsd.h"
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#include "jsapi.h"
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#include "jsfriendapi.h"
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#include "jswrapper.h"
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#include "nsCxPusher.h"
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using mozilla::AutoSafeJSContext;
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#ifdef DEBUG
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void JSD_ASSERT_VALID_VALUE(JSDValue* jsdval)
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{
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JS_ASSERT(jsdval);
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JS_ASSERT(jsdval->nref > 0);
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if(!JS_CLIST_IS_EMPTY(&jsdval->props))
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{
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JS_ASSERT(CHECK_BIT_FLAG(jsdval->flags, GOT_PROPS));
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JS_ASSERT(!JSVAL_IS_PRIMITIVE(jsdval->val));
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}
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if(jsdval->proto)
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{
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JS_ASSERT(CHECK_BIT_FLAG(jsdval->flags, GOT_PROTO));
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JS_ASSERT(jsdval->proto->nref > 0);
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}
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if(jsdval->parent)
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{
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JS_ASSERT(CHECK_BIT_FLAG(jsdval->flags, GOT_PARENT));
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JS_ASSERT(jsdval->parent->nref > 0);
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}
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if(jsdval->ctor)
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{
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JS_ASSERT(CHECK_BIT_FLAG(jsdval->flags, GOT_CTOR));
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JS_ASSERT(jsdval->ctor->nref > 0);
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}
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}
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void JSD_ASSERT_VALID_PROPERTY(JSDProperty* jsdprop)
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{
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JS_ASSERT(jsdprop);
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JS_ASSERT(jsdprop->name);
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JS_ASSERT(jsdprop->name->nref > 0);
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JS_ASSERT(jsdprop->val);
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JS_ASSERT(jsdprop->val->nref > 0);
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if(jsdprop->alias)
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JS_ASSERT(jsdprop->alias->nref > 0);
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}
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#endif
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bool
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jsd_IsValueObject(JSDContext* jsdc, JSDValue* jsdval)
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{
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return !JSVAL_IS_PRIMITIVE(jsdval->val) || JSVAL_IS_NULL(jsdval->val);
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}
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bool
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jsd_IsValueNumber(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_NUMBER(jsdval->val);
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}
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bool
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jsd_IsValueInt(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_INT(jsdval->val);
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}
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bool
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jsd_IsValueDouble(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_DOUBLE(jsdval->val);
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}
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bool
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jsd_IsValueString(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_STRING(jsdval->val);
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}
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bool
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jsd_IsValueBoolean(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_BOOLEAN(jsdval->val);
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}
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bool
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jsd_IsValueNull(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_NULL(jsdval->val);
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}
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bool
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jsd_IsValueVoid(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_VOID(jsdval->val);
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}
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bool
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jsd_IsValuePrimitive(JSDContext* jsdc, JSDValue* jsdval)
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{
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return JSVAL_IS_PRIMITIVE(jsdval->val);
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}
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bool
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jsd_IsValueFunction(JSDContext* jsdc, JSDValue* jsdval)
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{
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AutoSafeJSContext cx; // NB: Actually unused.
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return !JSVAL_IS_PRIMITIVE(jsdval->val) &&
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JS_ObjectIsCallable(cx, JSVAL_TO_OBJECT(jsdval->val));
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}
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bool
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jsd_IsValueNative(JSDContext* jsdc, JSDValue* jsdval)
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{
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AutoSafeJSContext cx;
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JS::RootedFunction fun(cx);
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if(jsd_IsValueFunction(jsdc, jsdval))
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{
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JSAutoCompartment ac(cx, JSVAL_TO_OBJECT(jsdval->val));
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AutoSaveExceptionState as(cx);
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bool ok = false;
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fun = JSD_GetValueFunction(jsdc, jsdval);
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if(fun)
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ok = JS_GetFunctionScript(cx, fun) ? false : true;
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JS_ASSERT(fun);
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return ok;
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}
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return !JSVAL_IS_PRIMITIVE(jsdval->val);
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}
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/***************************************************************************/
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bool
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jsd_GetValueBoolean(JSDContext* jsdc, JSDValue* jsdval)
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{
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jsval val = jsdval->val;
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if(!JSVAL_IS_BOOLEAN(val))
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return false;
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return JSVAL_TO_BOOLEAN(val);
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}
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int32_t
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jsd_GetValueInt(JSDContext* jsdc, JSDValue* jsdval)
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{
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jsval val = jsdval->val;
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if(!JSVAL_IS_INT(val))
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return 0;
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return JSVAL_TO_INT(val);
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}
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double
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jsd_GetValueDouble(JSDContext* jsdc, JSDValue* jsdval)
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{
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if(!JSVAL_IS_DOUBLE(jsdval->val))
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return 0;
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return JSVAL_TO_DOUBLE(jsdval->val);
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}
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JSString*
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jsd_GetValueString(JSDContext* jsdc, JSDValue* jsdval)
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{
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AutoSafeJSContext cx;
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JS::RootedValue stringval(cx);
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JS::RootedString string(cx);
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JS::RootedObject scopeObj(cx);
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if(jsdval->string)
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return jsdval->string;
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/* Reuse the string without copying or re-rooting it */
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if(JSVAL_IS_STRING(jsdval->val)) {
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jsdval->string = JSVAL_TO_STRING(jsdval->val);
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return jsdval->string;
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}
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/* Objects call JS_ValueToString in their own compartment. */
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scopeObj = !JSVAL_IS_PRIMITIVE(jsdval->val) ? JSVAL_TO_OBJECT(jsdval->val) : jsdc->glob;
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{
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JSAutoCompartment ac(cx, scopeObj);
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AutoSaveExceptionState as(cx);
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string = JS_ValueToString(cx, jsdval->val);
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}
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JSAutoCompartment ac2(cx, jsdc->glob);
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if(string) {
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stringval = STRING_TO_JSVAL(string);
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}
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if(!string || !JS_WrapValue(cx, stringval.address())) {
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return NULL;
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}
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jsdval->string = JSVAL_TO_STRING(stringval);
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if(!JS_AddNamedStringRoot(cx, &jsdval->string, "ValueString"))
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jsdval->string = NULL;
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return jsdval->string;
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}
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JSString*
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jsd_GetValueFunctionId(JSDContext* jsdc, JSDValue* jsdval)
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{
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AutoSafeJSContext cx;
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JS::RootedFunction fun(cx);
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if(!jsdval->funName && jsd_IsValueFunction(jsdc, jsdval))
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{
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JSAutoCompartment ac(cx, JSVAL_TO_OBJECT(jsdval->val));
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AutoSaveExceptionState as(cx);
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fun = JSD_GetValueFunction(jsdc, jsdval);
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if(!fun)
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return NULL;
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jsdval->funName = JS_GetFunctionId(fun);
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/* For compatibility we return "anonymous", not an empty string here. */
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if (!jsdval->funName)
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jsdval->funName = JS_GetAnonymousString(jsdc->jsrt);
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}
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return jsdval->funName;
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}
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/***************************************************************************/
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/*
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* Create a new JSD value referring to a jsval. Copy string values into the
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* JSD compartment. Leave all other GCTHINGs in their native compartments
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* and access them through cross-compartment calls.
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*/
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JSDValue*
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jsd_NewValue(JSDContext* jsdc, jsval value)
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{
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JS::RootedValue val(jsdc->jsrt, value);
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AutoSafeJSContext cx;
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JSDValue* jsdval;
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if(!(jsdval = (JSDValue*) calloc(1, sizeof(JSDValue))))
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return NULL;
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if(JSVAL_IS_GCTHING(val))
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{
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bool ok;
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JSAutoCompartment ac(cx, jsdc->glob);
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ok = JS_AddNamedValueRoot(cx, &jsdval->val, "JSDValue");
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if(ok && JSVAL_IS_STRING(val)) {
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if(!JS_WrapValue(cx, val.address())) {
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ok = false;
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}
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}
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if(!ok)
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{
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free(jsdval);
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return NULL;
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}
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}
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jsdval->val = val;
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jsdval->nref = 1;
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JS_INIT_CLIST(&jsdval->props);
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return jsdval;
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}
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void
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jsd_DropValue(JSDContext* jsdc, JSDValue* jsdval)
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{
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JS_ASSERT(jsdval->nref > 0);
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if(0 == --jsdval->nref)
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{
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jsd_RefreshValue(jsdc, jsdval);
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if(JSVAL_IS_GCTHING(jsdval->val))
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{
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AutoSafeJSContext cx;
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JSAutoCompartment ac(cx, jsdc->glob);
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JS_RemoveValueRoot(cx, &jsdval->val);
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}
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free(jsdval);
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}
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}
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jsval
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jsd_GetValueWrappedJSVal(JSDContext* jsdc, JSDValue* jsdval)
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{
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AutoSafeJSContext cx;
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JS::RootedObject obj(cx);
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JS::RootedValue val(cx, jsdval->val);
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if (!JSVAL_IS_PRIMITIVE(val)) {
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JSAutoCompartment ac(cx, JSVAL_TO_OBJECT(val));
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obj = JS_ObjectToOuterObject(cx, JSVAL_TO_OBJECT(val));
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if (!obj)
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{
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JS_ClearPendingException(cx);
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val = JSVAL_NULL;
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}
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else
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val = OBJECT_TO_JSVAL(obj);
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}
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return val;
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}
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static JSDProperty* _newProperty(JSDContext* jsdc, JS::HandleValue propId,
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JS::HandleValue propValue, JS::HandleValue propAlias,
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uint8_t propFlags, unsigned additionalFlags)
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{
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JSDProperty* jsdprop;
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if(!(jsdprop = (JSDProperty*) calloc(1, sizeof(JSDProperty))))
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return NULL;
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JS_INIT_CLIST(&jsdprop->links);
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jsdprop->nref = 1;
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jsdprop->flags = propFlags | additionalFlags;
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if(!(jsdprop->name = jsd_NewValue(jsdc, propId)))
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goto new_prop_fail;
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if(!(jsdprop->val = jsd_NewValue(jsdc, propValue)))
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goto new_prop_fail;
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if((jsdprop->flags & JSDPD_ALIAS) &&
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!(jsdprop->alias = jsd_NewValue(jsdc, propAlias)))
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goto new_prop_fail;
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return jsdprop;
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new_prop_fail:
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jsd_DropProperty(jsdc, jsdprop);
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return NULL;
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}
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static void _freeProps(JSDContext* jsdc, JSDValue* jsdval)
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{
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JSDProperty* jsdprop;
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while(jsdprop = (JSDProperty*)jsdval->props.next,
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jsdprop != (JSDProperty*)&jsdval->props)
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{
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JS_REMOVE_AND_INIT_LINK(&jsdprop->links);
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jsd_DropProperty(jsdc, jsdprop);
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}
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JS_ASSERT(JS_CLIST_IS_EMPTY(&jsdval->props));
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CLEAR_BIT_FLAG(jsdval->flags, GOT_PROPS);
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}
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static bool _buildProps(JSDContext* jsdc, JSDValue* jsdval)
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{
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AutoSafeJSContext cx;
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JS::RootedObject obj(cx);
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JSPropertyDescArray pda;
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unsigned i;
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JS_ASSERT(JS_CLIST_IS_EMPTY(&jsdval->props));
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JS_ASSERT(!(CHECK_BIT_FLAG(jsdval->flags, GOT_PROPS)));
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JS_ASSERT(!JSVAL_IS_PRIMITIVE(jsdval->val));
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if(JSVAL_IS_PRIMITIVE(jsdval->val))
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return false;
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obj = JSVAL_TO_OBJECT(jsdval->val);
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JSAutoCompartment ac(cx, obj);
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if(!JS_GetPropertyDescArray(cx, obj, &pda))
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{
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return false;
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}
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JS::RootedValue propId(cx);
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JS::RootedValue propValue(cx);
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JS::RootedValue propAlias(cx);
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uint8_t propFlags;
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for(i = 0; i < pda.length; i++)
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{
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propId = pda.array[i].id;
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propValue = pda.array[i].value;
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propAlias = pda.array[i].alias;
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propFlags = pda.array[i].flags;
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JSDProperty* prop = _newProperty(jsdc, propId, propValue, propAlias, propFlags, 0);
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if(!prop)
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{
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_freeProps(jsdc, jsdval);
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break;
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}
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JS_APPEND_LINK(&prop->links, &jsdval->props);
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}
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JS_PutPropertyDescArray(cx, &pda);
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SET_BIT_FLAG(jsdval->flags, GOT_PROPS);
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return !JS_CLIST_IS_EMPTY(&jsdval->props);
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}
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#undef DROP_CLEAR_VALUE
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#define DROP_CLEAR_VALUE(jsdc, x) if(x){jsd_DropValue(jsdc,x); x = NULL;}
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void
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jsd_RefreshValue(JSDContext* jsdc, JSDValue* jsdval)
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{
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AutoSafeJSContext cx;
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if(jsdval->string)
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{
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/* if the jsval is a string, then we didn't need to root the string */
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if(!JSVAL_IS_STRING(jsdval->val))
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{
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JSAutoCompartment ac(cx, jsdc->glob);
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JS_RemoveStringRoot(cx, &jsdval->string);
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}
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jsdval->string = NULL;
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}
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jsdval->funName = NULL;
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jsdval->className = NULL;
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DROP_CLEAR_VALUE(jsdc, jsdval->proto);
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DROP_CLEAR_VALUE(jsdc, jsdval->parent);
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DROP_CLEAR_VALUE(jsdc, jsdval->ctor);
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_freeProps(jsdc, jsdval);
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jsdval->flags = 0;
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}
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/***************************************************************************/
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unsigned
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jsd_GetCountOfProperties(JSDContext* jsdc, JSDValue* jsdval)
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{
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JSDProperty* jsdprop;
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unsigned count = 0;
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if(!(CHECK_BIT_FLAG(jsdval->flags, GOT_PROPS)))
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if(!_buildProps(jsdc, jsdval))
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return 0;
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for(jsdprop = (JSDProperty*)jsdval->props.next;
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jsdprop != (JSDProperty*)&jsdval->props;
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jsdprop = (JSDProperty*)jsdprop->links.next)
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{
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count++;
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}
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return count;
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}
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JSDProperty*
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jsd_IterateProperties(JSDContext* jsdc, JSDValue* jsdval, JSDProperty **iterp)
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{
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JSDProperty* jsdprop = *iterp;
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if(!(CHECK_BIT_FLAG(jsdval->flags, GOT_PROPS)))
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{
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JS_ASSERT(!jsdprop);
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if(!_buildProps(jsdc, jsdval))
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return NULL;
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}
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if(!jsdprop)
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jsdprop = (JSDProperty*)jsdval->props.next;
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if(jsdprop == (JSDProperty*)&jsdval->props)
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return NULL;
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*iterp = (JSDProperty*)jsdprop->links.next;
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JS_ASSERT(jsdprop);
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jsdprop->nref++;
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return jsdprop;
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}
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JSDProperty*
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jsd_GetValueProperty(JSDContext* jsdc, JSDValue* jsdval, JSString* nameStr)
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{
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JS::RootedString name(jsdc->jsrt, nameStr);
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AutoSafeJSContext cx;
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JSAutoCompartment acBase(cx, jsdc->glob);
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JSDProperty* jsdprop;
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JSDProperty* iter = NULL;
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JS::RootedObject obj(cx);
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bool found;
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JS::RootedValue val(cx), nameval(cx);
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JS::RootedId nameid(cx);
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JS::RootedValue propId(cx);
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JS::RootedValue propValue(cx);
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JS::RootedValue propAlias(cx);
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uint8_t propFlags;
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if(!jsd_IsValueObject(jsdc, jsdval))
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return NULL;
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/* If we already have the prop, then return it */
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while(NULL != (jsdprop = jsd_IterateProperties(jsdc, jsdval, &iter)))
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{
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JSString* propName = jsd_GetValueString(jsdc, jsdprop->name);
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if(propName) {
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int result;
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if (JS_CompareStrings(cx, propName, name, &result) && !result)
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return jsdprop;
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}
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JSD_DropProperty(jsdc, jsdprop);
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}
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/* Not found in property list, look it up explicitly */
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nameval = STRING_TO_JSVAL(name);
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if(!JS_ValueToId(cx, nameval, nameid.address()))
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return NULL;
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if(!(obj = JSVAL_TO_OBJECT(jsdval->val)))
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return NULL;
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JS::Rooted<JSPropertyDescriptor> desc(cx);
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{
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JSAutoCompartment ac(cx, obj);
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JS::RootedId id(cx, nameid);
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|
if(!JS_WrapId(cx, id.address()))
|
|
return NULL;
|
|
if(!JS_GetOwnPropertyDescriptorById(cx, obj, id, 0, &desc))
|
|
return NULL;
|
|
if(!desc.object())
|
|
return NULL;
|
|
|
|
JS_ClearPendingException(cx);
|
|
|
|
if(!JS_GetPropertyById(cx, obj, id, &val))
|
|
{
|
|
if (JS_IsExceptionPending(cx))
|
|
{
|
|
if (!JS_GetPendingException(cx, propValue.address()))
|
|
{
|
|
return NULL;
|
|
}
|
|
propFlags = JSPD_EXCEPTION;
|
|
}
|
|
else
|
|
{
|
|
propFlags = JSPD_ERROR;
|
|
propValue = JSVAL_VOID;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
propValue = val;
|
|
}
|
|
}
|
|
|
|
if (!JS_IdToValue(cx, nameid, propId.address()))
|
|
return NULL;
|
|
|
|
propAlias = JSVAL_NULL;
|
|
propFlags |= desc.isEnumerable() ? JSPD_ENUMERATE : 0
|
|
| desc.isReadonly() ? JSPD_READONLY : 0
|
|
| desc.isPermanent() ? JSPD_PERMANENT : 0;
|
|
|
|
return _newProperty(jsdc, propId, propValue, propAlias, propFlags, JSDPD_HINTED);
|
|
}
|
|
|
|
/*
|
|
* Retrieve a JSFunction* from a JSDValue*. This differs from
|
|
* JS_ValueToFunction by fully unwrapping the object first.
|
|
*/
|
|
JSFunction*
|
|
jsd_GetValueFunction(JSDContext* jsdc, JSDValue* jsdval)
|
|
{
|
|
AutoSafeJSContext cx;
|
|
|
|
JS::RootedObject obj(cx);
|
|
JS::RootedFunction fun(cx);
|
|
|
|
if (JSVAL_IS_PRIMITIVE(jsdval->val))
|
|
return NULL;
|
|
|
|
obj = js::UncheckedUnwrap(JSVAL_TO_OBJECT(jsdval->val));
|
|
JSAutoCompartment ac(cx, obj);
|
|
fun = JS_ValueToFunction(cx, OBJECT_TO_JSVAL(obj));
|
|
|
|
return fun;
|
|
}
|
|
|
|
JSDValue*
|
|
jsd_GetValuePrototype(JSDContext* jsdc, JSDValue* jsdval)
|
|
{
|
|
AutoSafeJSContext cx;
|
|
if(!(CHECK_BIT_FLAG(jsdval->flags, GOT_PROTO)))
|
|
{
|
|
JS::RootedObject obj(cx);
|
|
JS::RootedObject proto(cx);
|
|
JS_ASSERT(!jsdval->proto);
|
|
SET_BIT_FLAG(jsdval->flags, GOT_PROTO);
|
|
if(JSVAL_IS_PRIMITIVE(jsdval->val))
|
|
return NULL;
|
|
obj = JSVAL_TO_OBJECT(jsdval->val);
|
|
if(!JS_GetPrototype(cx, obj, &proto))
|
|
return NULL;
|
|
if(!proto)
|
|
return NULL;
|
|
jsdval->proto = jsd_NewValue(jsdc, OBJECT_TO_JSVAL(proto));
|
|
}
|
|
if(jsdval->proto)
|
|
jsdval->proto->nref++;
|
|
return jsdval->proto;
|
|
}
|
|
|
|
JSDValue*
|
|
jsd_GetValueParent(JSDContext* jsdc, JSDValue* jsdval)
|
|
{
|
|
if(!(CHECK_BIT_FLAG(jsdval->flags, GOT_PARENT)))
|
|
{
|
|
AutoSafeJSContext cx;
|
|
JS::RootedObject obj(cx);
|
|
JS::RootedObject parent(cx);
|
|
JS_ASSERT(!jsdval->parent);
|
|
SET_BIT_FLAG(jsdval->flags, GOT_PARENT);
|
|
if(JSVAL_IS_PRIMITIVE(jsdval->val))
|
|
return NULL;
|
|
obj = JSVAL_TO_OBJECT(jsdval->val);
|
|
{
|
|
JSAutoCompartment ac(cx, obj);
|
|
parent = JS_GetParentOrScopeChain(cx, obj);
|
|
}
|
|
if(!parent)
|
|
return NULL;
|
|
jsdval->parent = jsd_NewValue(jsdc, OBJECT_TO_JSVAL(parent));
|
|
}
|
|
if(jsdval->parent)
|
|
jsdval->parent->nref++;
|
|
return jsdval->parent;
|
|
}
|
|
|
|
JSDValue*
|
|
jsd_GetValueConstructor(JSDContext* jsdc, JSDValue* jsdval)
|
|
{
|
|
if(!(CHECK_BIT_FLAG(jsdval->flags, GOT_CTOR)))
|
|
{
|
|
AutoSafeJSContext cx;
|
|
JS::RootedObject obj(cx);
|
|
JS::RootedObject proto(cx);
|
|
JS::RootedObject ctor(cx);
|
|
JS_ASSERT(!jsdval->ctor);
|
|
SET_BIT_FLAG(jsdval->flags, GOT_CTOR);
|
|
if(JSVAL_IS_PRIMITIVE(jsdval->val))
|
|
return NULL;
|
|
obj = JSVAL_TO_OBJECT(jsdval->val);
|
|
if(!JS_GetPrototype(cx, obj, &proto))
|
|
return NULL;
|
|
if(!proto)
|
|
return NULL;
|
|
{
|
|
JSAutoCompartment ac(cx, obj);
|
|
ctor = JS_GetConstructor(cx, proto);
|
|
}
|
|
if(!ctor)
|
|
return NULL;
|
|
jsdval->ctor = jsd_NewValue(jsdc, OBJECT_TO_JSVAL(ctor));
|
|
}
|
|
if(jsdval->ctor)
|
|
jsdval->ctor->nref++;
|
|
return jsdval->ctor;
|
|
}
|
|
|
|
const char*
|
|
jsd_GetValueClassName(JSDContext* jsdc, JSDValue* jsdval)
|
|
{
|
|
jsval val = jsdval->val;
|
|
if(!jsdval->className && !JSVAL_IS_PRIMITIVE(val))
|
|
{
|
|
JS::RootedObject obj(jsdc->jsrt, JSVAL_TO_OBJECT(val));
|
|
AutoSafeJSContext cx;
|
|
JSAutoCompartment ac(cx, obj);
|
|
jsdval->className = JS_GetDebugClassName(obj);
|
|
}
|
|
return jsdval->className;
|
|
}
|
|
|
|
JSDScript*
|
|
jsd_GetScriptForValue(JSDContext* jsdc, JSDValue* jsdval)
|
|
{
|
|
AutoSafeJSContext cx;
|
|
JS::RootedValue val(cx, jsdval->val);
|
|
JSFunction* fun = NULL;
|
|
JS::RootedScript script(cx);
|
|
JSDScript* jsdscript;
|
|
|
|
if (!jsd_IsValueFunction(jsdc, jsdval))
|
|
return NULL;
|
|
|
|
{
|
|
JSAutoCompartment ac(cx, JSVAL_TO_OBJECT(val));
|
|
AutoSaveExceptionState as(cx);
|
|
fun = JSD_GetValueFunction(jsdc, jsdval);
|
|
if (fun)
|
|
script = JS_GetFunctionScript(cx, fun);
|
|
}
|
|
|
|
if (!script)
|
|
return NULL;
|
|
|
|
JSD_LOCK_SCRIPTS(jsdc);
|
|
jsdscript = jsd_FindJSDScript(jsdc, script);
|
|
JSD_UNLOCK_SCRIPTS(jsdc);
|
|
return jsdscript;
|
|
}
|
|
|
|
|
|
/***************************************************************************/
|
|
/***************************************************************************/
|
|
|
|
JSDValue*
|
|
jsd_GetPropertyName(JSDContext* jsdc, JSDProperty* jsdprop)
|
|
{
|
|
jsdprop->name->nref++;
|
|
return jsdprop->name;
|
|
}
|
|
|
|
JSDValue*
|
|
jsd_GetPropertyValue(JSDContext* jsdc, JSDProperty* jsdprop)
|
|
{
|
|
jsdprop->val->nref++;
|
|
return jsdprop->val;
|
|
}
|
|
|
|
JSDValue*
|
|
jsd_GetPropertyAlias(JSDContext* jsdc, JSDProperty* jsdprop)
|
|
{
|
|
if(jsdprop->alias)
|
|
jsdprop->alias->nref++;
|
|
return jsdprop->alias;
|
|
}
|
|
|
|
unsigned
|
|
jsd_GetPropertyFlags(JSDContext* jsdc, JSDProperty* jsdprop)
|
|
{
|
|
return jsdprop->flags;
|
|
}
|
|
|
|
void
|
|
jsd_DropProperty(JSDContext* jsdc, JSDProperty* jsdprop)
|
|
{
|
|
JS_ASSERT(jsdprop->nref > 0);
|
|
if(0 == --jsdprop->nref)
|
|
{
|
|
JS_ASSERT(JS_CLIST_IS_EMPTY(&jsdprop->links));
|
|
DROP_CLEAR_VALUE(jsdc, jsdprop->val);
|
|
DROP_CLEAR_VALUE(jsdc, jsdprop->name);
|
|
DROP_CLEAR_VALUE(jsdc, jsdprop->alias);
|
|
free(jsdprop);
|
|
}
|
|
}
|