23 #include "function_object.h"
26 #include "array_object.h"
40 FunctionPrototypeImp::FunctionPrototypeImp(
ExecState *exec)
44 putDirect(toStringPropertyName,
45 new FunctionProtoFuncImp(exec,
this, FunctionProtoFuncImp::ToString, 0, toStringPropertyName),
47 static const Identifier applyPropertyName(
"apply");
48 putDirect(applyPropertyName,
49 new FunctionProtoFuncImp(exec,
this, FunctionProtoFuncImp::Apply, 2, applyPropertyName),
51 static const Identifier callPropertyName(
"call");
52 putDirect(callPropertyName,
53 new FunctionProtoFuncImp(exec,
this, FunctionProtoFuncImp::Call, 1, callPropertyName),
55 putDirect(lengthPropertyName, 0, DontDelete|ReadOnly|DontEnum);
58 FunctionPrototypeImp::~FunctionPrototypeImp()
62 bool FunctionPrototypeImp::implementsCall()
const
80 putDirect(lengthPropertyName, len, DontDelete|ReadOnly|DontEnum);
85 bool FunctionProtoFuncImp::implementsCall()
const
97 if (!thisObj.
isValid() || !thisObj.inherits(&InternalFunctionImp::info)) {
99 fprintf(stderr,
"attempted toString() call on null or non-function object\n");
102 exec->setException(err);
106 if (thisObj.inherits(&DeclaredFunctionImp::info)) {
107 DeclaredFunctionImp *fi =
static_cast<DeclaredFunctionImp*
>
109 return String(
"function " + fi->name().ustring() +
"(" +
110 fi->parameterString() +
") " + fi->body->toCode());
111 }
else if (thisObj.inherits(&InternalFunctionImp::info) &&
113 result =
String(
"\nfunction " + static_cast<InternalFunctionImp*>(thisObj.imp())->
name().ustring() +
"() {\n"
114 " [native code]\n}\n");
117 result =
String(
"[function]");
122 Value thisArg = args[0];
123 Value argArray = args[1];
128 exec->setException(err);
133 if (thisArg.
isA(NullType) || thisArg.
isA(UndefinedType))
139 if (!argArray.
isA(NullType) && !argArray.
isA(UndefinedType)) {
140 if (argArray.
isA(ObjectType) &&
145 unsigned int length = argArrayObj.
get(exec,lengthPropertyName).
toUInt32(exec);
146 for (
unsigned int i = 0; i < length; i++)
147 applyArgs.
append(argArrayObj.
get(exec,i));
151 exec->setException(err);
155 result = func.
call(exec,applyThis,applyArgs);
159 Value thisArg = args[0];
164 exec->setException(err);
169 if (thisArg.
isA(NullType) || thisArg.
isA(UndefinedType))
188 putDirect(prototypePropertyName, funcProto, DontEnum|DontDelete|ReadOnly);
191 putDirect(lengthPropertyName, NumberImp::one(), ReadOnly|DontDelete|DontEnum);
194 FunctionObjectImp::~FunctionObjectImp()
198 bool FunctionObjectImp::implementsConstruct()
const
208 int argsSize = args.
size();
211 }
else if (argsSize == 1) {
212 body = args[0].toString(exec);
214 p = args[0].toString(exec);
215 for (
int k = 1; k < argsSize - 1; k++)
216 p +=
"," + args[k].toString(exec);
217 body = args[argsSize-1].toString(exec);
224 FunctionBodyNode *progNode = Parser::parse(body.
data(),body.
size(),&source,&errLine,&errMsg);
229 bool cont = dbg->sourceParsed(exec,source->sid,body,errLine);
235 return Object(
new ObjectImp());
239 exec->interpreter()->imp()->addSourceCode(source);
246 exec->setException(err);
254 FunctionBodyNode *bodyNode = progNode;
262 const UChar *c = p.data();
263 int i = 0, params = 0;
266 while (*c ==
' ' && i < len)
268 if (Lexer::isIdentLetter(c->uc)) {
271 while (i < len && (Lexer::isIdentLetter(c->uc) ||
272 Lexer::isDecimalDigit(c->uc))) {
276 while (i < len && *c ==
' ')
282 }
else if (*c ==
',') {
290 I18N_NOOP(
"Syntax error in parameter list"),
292 exec->setException(err);
300 prototype.
put(exec, constructorPropertyName,
Value(fimp), DontEnum|DontDelete|ReadOnly);
301 fimp->put(exec, prototypePropertyName, prototype, DontEnum|DontDelete|ReadOnly);
305 bool FunctionObjectImp::implementsCall()
const
313 return construct(exec,args);
Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents...
Object builtinObject() const
Returns the builtin "Object" object.
Base class for all function objects.
Interpreter * dynamicInterpreter() const
Returns the interpreter associated with this execution state.
Value get(ExecState *exec, const Identifier &propertyName) const
Retrieves the specified property from the object.
Object construct(ExecState *exec, const List &args)
Creates a new object based on this object.
void append(const Value &val)
Append an object to the end of the list.
Object & globalObject() const
Returns the object that is used as the global object during all script execution performed by this in...
Interpreter * lexicalInterpreter() const
Returns the interpreter associated with the current scope's global object.
static Object create(ExecState *exec, ErrorType errtype=GeneralError, const char *message=0, int lineno=-1, int sourceId=-1)
Factory method for error objects.
The initial value of Function.prototype (and thus all objects created with the Function constructor) ...
unsigned int toUInt32(ExecState *exec) const
Performs the ToUInt32 type conversion operation on this value (ECMA 9.6)
List copyTail() const
Make a copy of the list, omitting the first element.
Represents an primitive Undefined value.
Object toObject(ExecState *exec) const
Performs the ToObject type conversion operation on this value (ECMA 9.9)
Implementation class for functions implemented in JS.
bool implementsCall() const
Whether or not the object implements the call() method.
bool isA(Type t) const
Checks whether or not the value is of a particular tpye.
Represents an primitive String value.
static Object dynamicCast(const Value &v)
Converts a Value into an Object.
TQString name(StdAccel id)
static const List & empty()
Returns a pointer to a static instance of an empty list.
void put(ExecState *exec, const Identifier &propertyName, const Value &value, int attr=None)
Sets the specified property.
Value call(ExecState *exec, Object &thisObj, const List &args)
Calls this object as if it is a function.
bool isValid() const
Returns whether or not this is a valid value.
char * ascii() const
Convert the Unicode string to plain ASCII chars chopping of any higher bytes.
static const Identifier & null()
Creates an empty Identifier.
Represents the current state of script execution.
Represents an Identifier for a Javascript object.
const UChar * data() const