#ifndef KJS_FUNCTION_H
#define KJS_FUNCTION_H
#include "internal.h"
#include <wtf/OwnPtr.h>
namespace KJS {
class ActivationImp;
class FunctionBodyNode;
class Parameter;
class FunctionImp : public InternalFunctionImp {
friend class ActivationImp;
public:
FunctionImp(ExecState* exec, const Identifier& n, FunctionBodyNode* b);
virtual ~FunctionImp();
virtual bool getOwnPropertySlot(ExecState *, const Identifier &, PropertySlot&);
virtual void put(ExecState *exec, const Identifier &propertyName, JSValue *value, int attr = None);
virtual bool deleteProperty(ExecState *exec, const Identifier &propertyName);
virtual JSValue *callAsFunction(ExecState *exec, JSObject *thisObj, const List &args);
void addParameter(const Identifier &n);
Identifier getParameterName(int index);
UString parameterString() const;
virtual CodeType codeType() const = 0;
virtual Completion execute(ExecState *exec) = 0;
virtual const ClassInfo *classInfo() const { return &info; }
static const ClassInfo info;
RefPtr<FunctionBodyNode> body;
protected:
OwnPtr<Parameter> param;
private:
static JSValue *argumentsGetter(ExecState *, JSObject *, const Identifier &, const PropertySlot&);
static JSValue *lengthGetter(ExecState *, JSObject *, const Identifier &, const PropertySlot&);
void processParameters(ExecState *exec, const List &);
virtual void processVarDecls(ExecState *exec);
};
class DeclaredFunctionImp : public FunctionImp {
public:
DeclaredFunctionImp(ExecState *exec, const Identifier &n,
FunctionBodyNode *b, const ScopeChain &sc);
bool implementsConstruct() const;
JSObject *construct(ExecState *exec, const List &args);
virtual Completion execute(ExecState *exec);
CodeType codeType() const { return FunctionCode; }
virtual const ClassInfo *classInfo() const { return &info; }
static const ClassInfo info;
private:
virtual void processVarDecls(ExecState *exec);
};
class IndexToNameMap {
public:
IndexToNameMap(FunctionImp *func, const List &args);
~IndexToNameMap();
Identifier& operator[](int index);
Identifier& operator[](const Identifier &indexIdentifier);
bool isMapped(const Identifier &index) const;
void unMap(const Identifier &index);
private:
IndexToNameMap(); int size;
Identifier * _map;
};
class Arguments : public JSObject {
public:
Arguments(ExecState *exec, FunctionImp *func, const List &args, ActivationImp *act);
virtual void mark();
virtual bool getOwnPropertySlot(ExecState *, const Identifier &, PropertySlot&);
virtual void put(ExecState *exec, const Identifier &propertyName, JSValue *value, int attr = None);
virtual bool deleteProperty(ExecState *exec, const Identifier &propertyName);
virtual const ClassInfo *classInfo() const { return &info; }
static const ClassInfo info;
private:
static JSValue *mappedIndexGetter(ExecState *exec, JSObject *, const Identifier &, const PropertySlot& slot);
ActivationImp *_activationObject;
mutable IndexToNameMap indexToNameMap;
};
class ActivationImp : public JSObject {
public:
ActivationImp(FunctionImp *function, const List &arguments);
virtual bool getOwnPropertySlot(ExecState *exec, const Identifier &, PropertySlot&);
virtual void put(ExecState *exec, const Identifier &propertyName, JSValue *value, int attr = None);
virtual bool deleteProperty(ExecState *exec, const Identifier &propertyName);
virtual const ClassInfo *classInfo() const { return &info; }
static const ClassInfo info;
virtual void mark();
bool isActivation() { return true; }
private:
static PropertySlot::GetValueFunc getArgumentsGetter();
static JSValue *argumentsGetter(ExecState *exec, JSObject *, const Identifier &, const PropertySlot& slot);
void createArgumentsObject(ExecState *exec) const;
FunctionImp *_function;
List _arguments;
mutable Arguments *_argumentsObject;
};
class GlobalFuncImp : public InternalFunctionImp {
public:
GlobalFuncImp(ExecState*, FunctionPrototype*, int i, int len, const Identifier&);
virtual JSValue *callAsFunction(ExecState *exec, JSObject *thisObj, const List &args);
virtual CodeType codeType() const;
enum { Eval, ParseInt, ParseFloat, IsNaN, IsFinite, Escape, UnEscape,
DecodeURI, DecodeURIComponent, EncodeURI, EncodeURIComponent
#ifndef NDEBUG
, KJSPrint
#endif
};
private:
int id;
};
UString escapeStringForPrettyPrinting(const UString& s);
}
#endif