inspector/JSInjectedScriptHost.cpp

   1 /*
   2  * Copyright (C) 2013 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "JSInjectedScriptHost.h"
  28
  29 #if ENABLE(INSPECTOR)
  30
  31 #include "DateInstance.h"
  32 #include "Error.h"
  33 #include "InjectedScriptHost.h"
  34 #include "JSArray.h"
  35 #include "JSFunction.h"
  36 #include "JSInjectedScriptHostPrototype.h"
  37 #include "JSTypedArrays.h"
  38 #include "ObjectConstructor.h"
  39 #include "JSCInlines.h"
  40 #include "RegExpObject.h"
  41 #include "SourceCode.h"
  42 #include "TypedArrayInlines.h"
  43
  44 using namespace JSC;
  45
  46 namespace Inspector {
  47
  48 const ClassInfo JSInjectedScriptHost::s_info = { "InjectedScriptHost", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSInjectedScriptHost) };
  49
  50 JSInjectedScriptHost::JSInjectedScriptHost(VM& vm, Structure* structure, PassRefPtr<InjectedScriptHost> impl)
  51     : JSDestructibleObject(vm, structure)
  52     , m_impl(impl.leakRef())
  53 {
  54 }
  55
  56 void JSInjectedScriptHost::finishCreation(VM& vm)
  57 {
  58     Base::finishCreation(vm);
  59     ASSERT(inherits(info()));
  60 }
  61
  62 JSObject* JSInjectedScriptHost::createPrototype(VM& vm, JSGlobalObject* globalObject)
  63 {
  64     return JSInjectedScriptHostPrototype::create(vm, globalObject, JSInjectedScriptHostPrototype::createStructure(vm, globalObject, globalObject->objectPrototype()));
  65 }
  66
  67 void JSInjectedScriptHost::destroy(JSC::JSCell* cell)
  68 {
  69     JSInjectedScriptHost* thisObject = static_cast<JSInjectedScriptHost*>(cell);
  70     thisObject->JSInjectedScriptHost::~JSInjectedScriptHost();
  71 }
  72
  73 void JSInjectedScriptHost::releaseImpl()
  74 {
  75     if (m_impl) {
  76         m_impl->deref();
  77         m_impl = nullptr;
  78     }
  79 }
  80
  81 JSInjectedScriptHost::~JSInjectedScriptHost()
  82 {
  83     releaseImpl();
  84 }
  85
  86 JSValue JSInjectedScriptHost::evaluate(ExecState* exec) const
  87 {
  88     JSGlobalObject* globalObject = exec->lexicalGlobalObject();
  89     return globalObject->evalFunction();
  90 }
  91
  92 JSValue JSInjectedScriptHost::internalConstructorName(ExecState* exec)
  93 {
  94     if (exec->argumentCount() < 1)
  95         return jsUndefined();
  96
  97     JSObject* thisObject = jsCast<JSObject*>(exec->uncheckedArgument(0).toThis(exec, NotStrictMode));
  98     String result = thisObject->methodTable()->className(thisObject);
  99     return jsString(exec, result);
 100 }
 101
 102 JSValue JSInjectedScriptHost::isHTMLAllCollection(ExecState* exec)
 103 {
 104     if (exec->argumentCount() < 1)
 105         return jsUndefined();
 106
 107     JSValue value = exec->uncheckedArgument(0);
 108     return jsBoolean(impl().isHTMLAllCollection(value));
 109 }
 110
 111 JSValue JSInjectedScriptHost::type(ExecState* exec)
 112 {
 113     if (exec->argumentCount() < 1)
 114         return jsUndefined();
 115
 116     JSValue value = exec->uncheckedArgument(0);
 117     if (value.isString())
 118         return exec->vm().smallStrings.stringString();
 119     if (value.isBoolean())
 120         return exec->vm().smallStrings.booleanString();
 121     if (value.isNumber())
 122         return exec->vm().smallStrings.numberString();
 123
 124     if (value.inherits(JSArray::info()))
 125         return jsNontrivialString(exec, ASCIILiteral("array"));
 126     if (value.inherits(DateInstance::info()))
 127         return jsNontrivialString(exec, ASCIILiteral("date"));
 128     if (value.inherits(RegExpObject::info()))
 129         return jsNontrivialString(exec, ASCIILiteral("regexp"));
 130     if (value.inherits(JSInt8Array::info()) || value.inherits(JSInt16Array::info()) || value.inherits(JSInt32Array::info()))
 131         return jsNontrivialString(exec, ASCIILiteral("array"));
 132     if (value.inherits(JSUint8Array::info()) || value.inherits(JSUint16Array::info()) || value.inherits(JSUint32Array::info()))
 133         return jsNontrivialString(exec, ASCIILiteral("array"));
 134     if (value.inherits(JSFloat32Array::info()) || value.inherits(JSFloat64Array::info()))
 135         return jsNontrivialString(exec, ASCIILiteral("array"));
 136
 137     return impl().type(exec, value);
 138 }
 139
 140 JSValue JSInjectedScriptHost::functionDetails(ExecState* exec)
 141 {
 142     if (exec->argumentCount() < 1)
 143         return jsUndefined();
 144
 145     JSValue value = exec->uncheckedArgument(0);
 146     if (!value.asCell()->inherits(JSFunction::info()))
 147         return jsUndefined();
 148
 149     JSFunction* function = jsCast<JSFunction*>(value);
 150     const SourceCode* sourceCode = function->sourceCode();
 151     if (!sourceCode)
 152         return jsUndefined();
 153
 154     int lineNumber = sourceCode->firstLine();
 155     if (lineNumber)
 156         lineNumber -= 1; // In the inspector protocol all positions are 0-based while in SourceCode they are 1-based
 157
 158     String scriptID = String::number(sourceCode->provider()->asID());
 159     JSObject* location = constructEmptyObject(exec);
 160     location->putDirect(exec->vm(), Identifier(exec, "lineNumber"), jsNumber(lineNumber));
 161     location->putDirect(exec->vm(), Identifier(exec, "scriptId"), jsString(exec, scriptID));
 162
 163     JSObject* result = constructEmptyObject(exec);
 164     result->putDirect(exec->vm(), Identifier(exec, "location"), location);
 165
 166     String name = function->name(exec);
 167     if (!name.isEmpty())
 168         result->putDirect(exec->vm(), Identifier(exec, "name"), jsString(exec, name));
 169
 170     String displayName = function->displayName(exec);
 171     if (!displayName.isEmpty())
 172         result->putDirect(exec->vm(), Identifier(exec, "displayName"), jsString(exec, displayName));
 173
 174     // FIXME: provide function scope data in "scopesRaw" property when JSC supports it.
 175     // <https://webkit.org/b/87192> [JSC] expose function (closure) inner context to debugger
 176
 177     return result;
 178 }
 179
 180 JSValue JSInjectedScriptHost::getInternalProperties(ExecState*)
 181 {
 182     // FIXME: <https://webkit.org/b/94533> [JSC] expose object inner properties to debugger
 183     return jsUndefined();
 184 }
 185
 186 JSValue toJS(ExecState* exec, JSGlobalObject* globalObject, InjectedScriptHost* impl)
 187 {
 188     if (!impl)
 189         return jsNull();
 190
 191     JSObject* prototype = JSInjectedScriptHost::createPrototype(exec->vm(), globalObject);
 192     Structure* structure = JSInjectedScriptHost::createStructure(exec->vm(), globalObject, prototype);
 193     JSInjectedScriptHost* injectedScriptHost = JSInjectedScriptHost::create(exec->vm(), structure, impl);
 194
 195     return injectedScriptHost;
 196 }
 197
 198 JSInjectedScriptHost* toJSInjectedScriptHost(JSValue value)
 199 {
 200     return value.inherits(JSInjectedScriptHost::info()) ? jsCast<JSInjectedScriptHost*>(value) : nullptr;
 201 }
 202
 203 } // namespace Inspector
 204
 205 #endif // ENABLE(INSPECTOR)