Annotation of parser3/src/types/pa_vstateless_class.h, revision 1.67
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:
1.67 ! misha 11: static const char * const IDENT_VSTATELESS_CLASS_H="$Date: 2009-08-08 13:30:21 $";
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"
1.2 paf 19:
1.38 paf 20: // defines
21:
22: #define CLASS_NAME "CLASS"
1.54 misha 23: #define CLASS_NAMETEXT "CLASS_NAME"
1.63 misha 24: extern const String class_name, class_nametext;
1.38 paf 25:
26: // forwards
27:
1.43 paf 28: class VStateless_class;
1.59 misha 29: typedef Array<VStateless_class*> ArrayClass;
1.66 misha 30: typedef HashString<Property *> HashStringProperty;
31: typedef HashString<Method *> HashStringMethod;
1.43 paf 32:
1.2 paf 33: class Temp_method;
34:
1.6 paf 35: /**
1.30 paf 36: object' class. stores
37: - base: VClass::base()
38: - methods: VStateless_class::fmethods
1.6 paf 39:
1.30 paf 40: @see Method, VStateless_object, Temp_method
1.6 paf 41: */
1.39 paf 42: class VStateless_class: public Value {
1.19 paf 43: friend class Temp_method;
1.43 paf 44:
45: const String* fname;
46: mutable const char* fname_cstr;
1.66 misha 47: HashStringMethod fmethods;
1.43 paf 48:
49: bool flocked;
1.57 misha 50: bool fall_vars_local;
1.61 misha 51: bool fpartial;
1.43 paf 52:
53: protected:
54:
55: VStateless_class* fbase;
1.66 misha 56: ArrayClass fderived;
57:
1.60 misha 58: Method* fscalar;
1.58 misha 59: Method* fdefault_getter;
1.43 paf 60:
1.2 paf 61: public: // Value
62:
1.43 paf 63: const char* type() const { return "stateless_class"; }
1.2 paf 64:
1.5 paf 65: /// VStateless_class: this
1.43 paf 66: override VStateless_class *get_class() { return this; }
1.41 paf 67: /// VStateless_class: fbase
1.43 paf 68: override Value* base() { return fbase; }
1.66 misha 69:
70: override Value* get_element(const String& aname) { return get_element(*this, aname); }
71: /// get_element with aself for VObject junctions
72: virtual Value* get_element(Value& aself, const String& aname);
73:
74: override const VJunction* put_element(const String& aname, Value* avalue, bool areplace) { return put_element(*this, aname, avalue, areplace); }
75: /// put_element with aself for VObject junctions
76: virtual const VJunction* put_element(Value& /*aself*/, const String& aname, Value* avalue, bool areplace) { return Value::put_element(aname, avalue, areplace); }
77:
1.55 misha 78: override Value& as_expr_result(bool /*return_string_as_is=false*/);
1.60 misha 79:
1.66 misha 80: Value* get_scalar(Value& aself);
81: void set_scalar(Method* amethod);
1.2 paf 82:
1.66 misha 83: Value* get_default_getter(Value& aself, const String& aname);
84: void set_default_getter(Method* amethod);
1.60 misha 85:
1.66 misha 86: void add_derived(VStateless_class &aclass);
1.61 misha 87:
1.2 paf 88: public: // usage
89:
1.43 paf 90: VStateless_class(
91: const String* aname=0,
92: VStateless_class* abase=0):
1.24 paf 93: fname(aname),
1.43 paf 94: flocked(false),
1.66 misha 95: fbase(0),
96: fderived(0),
1.58 misha 97: fall_vars_local(false),
1.61 misha 98: fpartial(false),
1.60 misha 99: fscalar(0),
1.66 misha 100: fdefault_getter(0)
1.61 misha 101: {
1.66 misha 102: set_base(abase);
1.2 paf 103: }
104:
1.43 paf 105: void lock() { flocked=true; }
106:
1.24 paf 107: const String& name() const {
108: if(!fname) {
109: if(fbase)
110: return fbase->name();
111:
1.56 misha 112: throw Exception(PARSER_RUNTIME,
1.24 paf 113: 0,
114: "getting name of nameless class");
115: }
116: return *fname;
117: }
1.66 misha 118:
1.43 paf 119: const char* name_cstr() const{
1.66 misha 120: if(!fname_cstr) // remembering last calculated, and can't reassign 'fname_cstr'!
121: fname_cstr=name().cstr();
122: return fname_cstr;
1.24 paf 123: }
1.61 misha 124:
1.24 paf 125: void set_name(const String& aname) {
126: fname=&aname;
1.66 misha 127: fname_cstr=0;
1.24 paf 128: }
129:
1.43 paf 130: Method* get_method(const String& aname) const {
131: return fmethods.get(aname);
1.2 paf 132: }
133:
1.66 misha 134: HashStringMethod get_methods(){
1.65 misha 135: return fmethods;
136: }
137:
1.61 misha 138: bool is_vars_local(){
139: return fall_vars_local;
140: }
141:
142: void set_all_vars_local(){
1.57 misha 143: fall_vars_local=true;
144: }
145:
1.61 misha 146: bool is_partial(){
147: return fpartial;
148: }
149:
150: void set_partial(){
151: fpartial=true;
1.57 misha 152: }
153:
1.2 paf 154: void add_native_method(
1.43 paf 155: const char* cstr_name,
1.9 paf 156: Method::Call_type call_type,
1.43 paf 157: NativeCodePtr native_code,
1.62 misha 158: int min_numbered_params_count,
159: int max_numbered_params_count,
160: Method::Call_optimization call_optimization=Method::CO_WITHOUT_WCONTEXT);
1.66 misha 161:
162: /// overrided in VClass
1.67 ! misha 163: virtual void set_method(const String& aname, Method* amethod);
1.66 misha 164: virtual HashStringProperty* get_properties(){ return 0; };
165: virtual void set_base(VStateless_class* abase);
1.2 paf 166:
1.43 paf 167: VStateless_class* base_class() { return fbase; }
1.2 paf 168:
1.66 misha 169: bool derived_from(VStateless_class& vclass){
170: return fbase==&vclass || fbase && fbase->derived_from(vclass);
1.31 paf 171: }
172:
1.21 paf 173: /// @returns new value for current class, used in classes/ & VClass
1.66 misha 174: virtual Value* create_new_value(Pool&) { return 0; }
1.2 paf 175: };
176:
1.6 paf 177: /// Auto-object used for temporarily substituting/removing class method
1.2 paf 178: class Temp_method {
179: VStateless_class& fclass;
180: const String& fname;
1.43 paf 181: Method* saved_method;
1.2 paf 182: public:
1.43 paf 183: Temp_method(VStateless_class& aclass, const String& aname, Method* amethod) :
1.2 paf 184: fclass(aclass),
185: fname(aname),
186: saved_method(aclass.get_method(aname)) {
1.67 ! misha 187: fclass.set_method(aname, amethod);
1.2 paf 188: }
189: ~Temp_method() {
1.67 ! misha 190: fclass.set_method(fname, saved_method);
1.2 paf 191: }
192: };
193:
194: #endif
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