22 #include "function_object.h"
25 #include "array_object.h"
39 FunctionPrototypeImp::FunctionPrototypeImp(
ExecState *exec)
43 putDirect(toStringPropertyName,
44 new FunctionProtoFuncImp(exec,
this, FunctionProtoFuncImp::ToString, 0, toStringPropertyName),
46 static const Identifier applyPropertyName(
"apply");
47 putDirect(applyPropertyName,
48 new FunctionProtoFuncImp(exec,
this, FunctionProtoFuncImp::Apply, 2, applyPropertyName),
50 static const Identifier callPropertyName(
"call");
51 putDirect(callPropertyName,
52 new FunctionProtoFuncImp(exec,
this, FunctionProtoFuncImp::Call, 1, callPropertyName),
54 putDirect(lengthPropertyName, 0, DontDelete|ReadOnly|DontEnum);
57 FunctionPrototypeImp::~FunctionPrototypeImp()
61 bool FunctionPrototypeImp::implementsCall()
const
79 putDirect(lengthPropertyName, len, DontDelete|ReadOnly|DontEnum);
84 bool FunctionProtoFuncImp::implementsCall()
const
96 if (!thisObj.
isValid() || !thisObj.inherits(&InternalFunctionImp::info)) {
98 fprintf(stderr,
"attempted toString() call on null or non-function object\n");
101 exec->setException(err);
105 if (thisObj.inherits(&DeclaredFunctionImp::info)) {
106 DeclaredFunctionImp *fi =
static_cast<DeclaredFunctionImp*
>
108 return String(
"function " + fi->name().ustring() +
"(" +
109 fi->parameterString() +
") " + fi->body->toCode());
110 }
else if (thisObj.inherits(&InternalFunctionImp::info) &&
113 " [native code]\n}\n");
116 result =
String(
"[function]");
121 Value thisArg = args[0];
122 Value argArray = args[1];
127 exec->setException(err);
132 if (thisArg.
isA(NullType) || thisArg.
isA(UndefinedType))
138 if (!argArray.
isA(NullType) && !argArray.
isA(UndefinedType)) {
139 if (argArray.
isA(ObjectType) &&
144 unsigned int length = argArrayObj.
get(exec,lengthPropertyName).
toUInt32(exec);
145 for (
unsigned int i = 0; i < length; i++)
146 applyArgs.
append(argArrayObj.
get(exec,i));
150 exec->setException(err);
154 result = func.
call(exec,applyThis,applyArgs);
158 Value thisArg = args[0];
163 exec->setException(err);
168 if (thisArg.
isA(NullType) || thisArg.
isA(UndefinedType))
187 putDirect(prototypePropertyName, funcProto, DontEnum|DontDelete|ReadOnly);
190 putDirect(lengthPropertyName, NumberImp::one(), ReadOnly|DontDelete|DontEnum);
193 FunctionObjectImp::~FunctionObjectImp()
197 bool FunctionObjectImp::implementsConstruct()
const
207 int argsSize = args.
size();
210 }
else if (argsSize == 1) {
211 body = args[0].toString(exec);
213 p = args[0].toString(exec);
214 for (
int k = 1; k < argsSize - 1; k++)
215 p +=
"," + args[k].toString(exec);
216 body = args[argsSize-1].toString(exec);
223 FunctionBodyNode *progNode = Parser::parse(body.
data(),body.
size(),&source,&errLine,&errMsg);
228 bool cont = dbg->sourceParsed(exec,source->sid,body,errLine);
234 return Object(
new ObjectImp());
238 exec->interpreter()->imp()->addSourceCode(source);
245 exec->setException(err);
253 FunctionBodyNode *bodyNode = progNode;
261 const UChar *c = p.data();
262 int i = 0, params = 0;
265 while (*c ==
' ' && i < len)
267 if (Lexer::isIdentLetter(c->uc)) {
270 while (i < len && (Lexer::isIdentLetter(c->uc) ||
271 Lexer::isDecimalDigit(c->uc))) {
275 while (i < len && *c ==
' ')
281 }
else if (*c ==
',') {
289 I18N_NOOP(
"Syntax error in parameter list"),
291 exec->setException(err);
299 prototype.
put(exec, constructorPropertyName,
Value(fimp), DontEnum|DontDelete|ReadOnly);
300 fimp->put(exec, prototypePropertyName, prototype, DontEnum|DontDelete|ReadOnly);
304 bool FunctionObjectImp::implementsCall()
const
312 return construct(exec,args);
static const Identifier & null()
Creates an empty Identifier.
const UString & ustring() const
returns a UString of the identifier
Represents an primitive String value.
void append(const Value &val)
Append an object to the end of the list.
void put(ExecState *exec, const Identifier &propertyName, const Value &value, int attr=None)
Sets the specified property.
Object builtinObject() const
Returns the builtin "Object" object.
Value call(ExecState *exec, Object &thisObj, const List &args)
Calls this object as if it is a function.
bool isNull() const
Returns the identfiers state of being unset.
Object construct(ExecState *exec, const List &args)
Creates a new object based on this object.
The initial value of Function.prototype (and thus all objects created with the Function constructor)
bool isA(Type t) const
Checks whether or not the value is of a particular tpye.
unsigned int toUInt32(ExecState *exec) const
Performs the ToUInt32 type conversion operation on this value (ECMA 9.6)
Represents the current state of script execution.
Represents an Identifier for a Javascript object.
static Object create(ExecState *exec, ErrorType errtype=GeneralError, const char *message=0, int lineno=-1, int sourceId=-1)
Factory method for error objects.
Object & globalObject() const
Returns the object that is used as the global object during all script execution performed by this in...
List copyTail() const
Make a copy of the list, omitting the first element.
Base class for all function objects.
char * ascii() const
Convert the Unicode string to plain ASCII chars chopping of any higher bytes.
const UChar * data() const
static Object dynamicCast(const Value &v)
Converts a Value into an Object.
bool implementsCall() const
Whether or not the object implements the call() method.
static const List & empty()
Returns a pointer to a static instance of an empty list.
Value get(ExecState *exec, const Identifier &propertyName) const
Retrieves the specified property from the object.
Implementation class for functions implemented in JS.
Value objects are act as wrappers ("smart pointers") around ValueImp objects and their descendents.
Interpreter * dynamicInterpreter() const
Returns the interpreter associated with this execution state.
Interpreter * lexicalInterpreter() const
Returns the interpreter associated with the current scope's global object.
bool isValid() const
Returns whether or not this is a valid value.
Represents an primitive Undefined value.
Object toObject(ExecState *exec) const
Performs the ToObject type conversion operation on this value (ECMA 9.9)