Annotation of parser3/src/types/pa_vstateless_class.h, revision 1.63
1.6 paf 1: /** @file
2: Parser: stateless class decls.
3:
1.62 misha 4: Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.23 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.2 paf 6: */
7:
8: #ifndef PA_VSTATELESS_CLASS_H
9: #define PA_VSTATELESS_CLASS_H
1.27 paf 10:
1.63 ! misha 11: static const char * const IDENT_VSTATELESS_CLASS_H="$Date: 2009-05-04 09:25:32 $";
1.43 paf 12:
13: // include
1.2 paf 14:
1.45 paf 15: #include "pa_pool.h"
1.13 paf 16: #include "pa_hash.h"
1.2 paf 17: #include "pa_vjunction.h"
1.43 paf 18: #include "pa_method.h"
1.49 paf 19: #include "pa_vproperty.h"
1.2 paf 20:
1.38 paf 21: // defines
22:
23: #define CLASS_NAME "CLASS"
1.54 misha 24: #define CLASS_NAMETEXT "CLASS_NAME"
1.63 ! misha 25: extern const String class_name, class_nametext;
1.38 paf 26:
27: // forwards
28:
1.43 paf 29: class VStateless_class;
1.59 misha 30: typedef Array<VStateless_class*> ArrayClass;
1.43 paf 31:
1.2 paf 32: class Temp_method;
33:
1.6 paf 34: /**
1.30 paf 35: object' class. stores
36: - base: VClass::base()
37: - methods: VStateless_class::fmethods
1.6 paf 38:
1.30 paf 39: @see Method, VStateless_object, Temp_method
1.6 paf 40: */
1.39 paf 41: class VStateless_class: public Value {
1.19 paf 42: friend class Temp_method;
1.43 paf 43:
44: const String* fname;
45: mutable const char* fname_cstr;
1.63 ! misha 46: HashString<Method*> fmethods;
1.43 paf 47:
48: bool flocked;
1.57 misha 49: bool fall_vars_local;
1.61 misha 50: bool fpartial;
1.43 paf 51:
52: protected:
53:
54: VStateless_class* fbase;
1.60 misha 55: Method* fscalar;
1.58 misha 56: Method* fdefault_getter;
1.61 misha 57: Method* fdefault_setter;
1.43 paf 58:
1.2 paf 59: public: // Value
60:
1.43 paf 61: const char* type() const { return "stateless_class"; }
1.2 paf 62:
1.5 paf 63: /// VStateless_class: this
1.43 paf 64: override VStateless_class *get_class() { return this; }
1.41 paf 65: /// VStateless_class: fbase
1.43 paf 66: override Value* base() { return fbase; }
1.58 misha 67: override Value* get_element(const String& aname, Value& aself, bool alooking_up);
1.55 misha 68: override Value& as_expr_result(bool /*return_string_as_is=false*/);
1.60 misha 69:
1.58 misha 70: override Value* get_default_getter(Value& aself, const String& aname);
71: override void set_default_getter(Method* amethod);
1.2 paf 72:
1.60 misha 73: override Value* get_scalar(Value& aself);
74: override void set_scalar(Method* amethod);
75:
1.61 misha 76: override VJunction* get_default_setter(Value& aself, const String& aname);
77: override void set_default_setter(Method* amethod);
78:
1.2 paf 79: public: // usage
80:
1.43 paf 81: VStateless_class(
82: const String* aname=0,
83: VStateless_class* abase=0):
1.24 paf 84: fname(aname),
1.43 paf 85: flocked(false),
1.57 misha 86: fbase(abase),
1.58 misha 87: fall_vars_local(false),
1.61 misha 88: fpartial(false),
1.60 misha 89: fscalar(0),
1.61 misha 90: fdefault_getter(0),
91: fdefault_setter(0)
92: {
1.2 paf 93: }
94:
1.43 paf 95: void lock() { flocked=true; }
96:
1.24 paf 97: const String& name() const {
98: if(!fname) {
99: if(fbase)
100: return fbase->name();
101:
1.56 misha 102: throw Exception(PARSER_RUNTIME,
1.24 paf 103: 0,
104: "getting name of nameless class");
105: }
106:
107: return *fname;
108: }
1.43 paf 109: const char* name_cstr() const{
110: if(this) {
111: if(!fname_cstr) // remembering last calculated, and can't reassign 'fname_cstr'!
112: fname_cstr=name().cstr();
113: return fname_cstr;
114: } else
115: return "<unknown>";
1.24 paf 116: }
1.61 misha 117:
1.24 paf 118: void set_name(const String& aname) {
119: fname=&aname;
120: }
121:
1.43 paf 122: Method* get_method(const String& aname) const {
123: return fmethods.get(aname);
1.2 paf 124: }
125:
1.61 misha 126: bool is_vars_local(){
127: return fall_vars_local;
128: }
129:
130: void set_all_vars_local(){
1.57 misha 131: fall_vars_local=true;
132: }
133:
1.61 misha 134: bool is_partial(){
135: return fpartial;
136: }
137:
138: void set_partial(){
139: fpartial=true;
1.57 misha 140: }
141:
1.51 paf 142: /// virtual for VClass to override to pre-cache property accessors into fields
143: virtual void add_method(const String& name, Method& method);
1.40 paf 144:
1.2 paf 145: void add_native_method(
1.43 paf 146: const char* cstr_name,
1.9 paf 147: Method::Call_type call_type,
1.43 paf 148: NativeCodePtr native_code,
1.62 misha 149: int min_numbered_params_count,
150: int max_numbered_params_count,
151: Method::Call_optimization call_optimization=Method::CO_WITHOUT_WCONTEXT);
1.2 paf 152:
1.43 paf 153: void set_base(VStateless_class* abase) {
1.2 paf 154: // remember the guy
1.32 paf 155: fbase=abase;
1.2 paf 156: }
1.43 paf 157: VStateless_class* base_class() { return fbase; }
1.2 paf 158:
1.30 paf 159: bool derived_from(VStateless_class& vclass) {
1.2 paf 160: return
1.30 paf 161: fbase==&vclass ||
162: fbase && fbase->derived_from(vclass);
1.31 paf 163: }
164:
1.11 paf 165: //@{
166: /// @name just stubs, real onces defined below the hierarchy
1.43 paf 167: virtual Value* get_field(const String&) { return 0; }
168: virtual bool replace_field(const String&, Value*) { return false; }
1.21 paf 169: //@}
170:
171: /// @returns new value for current class, used in classes/ & VClass
1.52 paf 172: virtual Value* create_new_value(Pool&, HashStringValue& /*afields*/) { return 0; }
1.50 paf 173:
174: protected:
175:
176: void fill_properties(HashStringValue& acache);
1.2 paf 177:
1.49 paf 178: private:
1.2 paf 179:
1.49 paf 180: void put_method(const String& aname, Method* amethod);
1.2 paf 181: };
182:
1.6 paf 183: /// Auto-object used for temporarily substituting/removing class method
1.2 paf 184: class Temp_method {
185: VStateless_class& fclass;
186: const String& fname;
1.43 paf 187: Method* saved_method;
1.2 paf 188: public:
1.43 paf 189: Temp_method(VStateless_class& aclass, const String& aname, Method* amethod) :
1.2 paf 190: fclass(aclass),
191: fname(aname),
192: saved_method(aclass.get_method(aname)) {
193: fclass.put_method(aname, amethod);
194: }
195: ~Temp_method() {
196: fclass.put_method(fname, saved_method);
197: }
198: };
199:
200: #endif
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