Annotation of parser3/src/types/pa_vstateless_class.h, revision 1.69
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:
1.69 ! misha 11: static const char * const IDENT_VSTATELESS_CLASS_H="$Date: 2009-08-11 23:54:29 $";
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;
1.68 misha 56: /// all derived classes, recursively
1.66 misha 57: ArrayClass fderived;
58:
1.60 misha 59: Method* fscalar;
1.58 misha 60: Method* fdefault_getter;
1.43 paf 61:
1.2 paf 62: public: // Value
63:
1.43 paf 64: const char* type() const { return "stateless_class"; }
1.2 paf 65:
1.5 paf 66: /// VStateless_class: this
1.69 ! misha 67: override VStateless_class* get_class() { return this; }
1.41 paf 68: /// VStateless_class: fbase
1.69 ! misha 69: override VStateless_class* base() { return fbase; }
1.66 misha 70:
71: override Value* get_element(const String& aname) { return get_element(*this, aname); }
72: /// get_element with aself for VObject junctions
73: virtual Value* get_element(Value& aself, const String& aname);
74:
75: override const VJunction* put_element(const String& aname, Value* avalue, bool areplace) { return put_element(*this, aname, avalue, areplace); }
76: /// put_element with aself for VObject junctions
77: virtual const VJunction* put_element(Value& /*aself*/, const String& aname, Value* avalue, bool areplace) { return Value::put_element(aname, avalue, areplace); }
78:
1.55 misha 79: override Value& as_expr_result(bool /*return_string_as_is=false*/);
1.60 misha 80:
1.66 misha 81: Value* get_scalar(Value& aself);
82: void set_scalar(Method* amethod);
1.2 paf 83:
1.66 misha 84: Value* get_default_getter(Value& aself, const String& aname);
85: void set_default_getter(Method* amethod);
1.60 misha 86:
1.66 misha 87: void add_derived(VStateless_class &aclass);
1.61 misha 88:
1.2 paf 89: public: // usage
90:
1.43 paf 91: VStateless_class(
92: const String* aname=0,
93: VStateless_class* abase=0):
1.24 paf 94: fname(aname),
1.43 paf 95: flocked(false),
1.66 misha 96: fbase(0),
97: fderived(0),
1.58 misha 98: fall_vars_local(false),
1.61 misha 99: fpartial(false),
1.60 misha 100: fscalar(0),
1.66 misha 101: fdefault_getter(0)
1.61 misha 102: {
1.66 misha 103: set_base(abase);
1.2 paf 104: }
105:
1.43 paf 106: void lock() { flocked=true; }
107:
1.24 paf 108: const String& name() const {
109: if(!fname) {
110: if(fbase)
111: return fbase->name();
112:
1.56 misha 113: throw Exception(PARSER_RUNTIME,
1.24 paf 114: 0,
115: "getting name of nameless class");
116: }
117: return *fname;
118: }
1.66 misha 119:
1.43 paf 120: const char* name_cstr() const{
1.66 misha 121: if(!fname_cstr) // remembering last calculated, and can't reassign 'fname_cstr'!
122: fname_cstr=name().cstr();
123: return fname_cstr;
1.24 paf 124: }
1.61 misha 125:
1.24 paf 126: void set_name(const String& aname) {
127: fname=&aname;
1.66 misha 128: fname_cstr=0;
1.24 paf 129: }
130:
1.43 paf 131: Method* get_method(const String& aname) const {
132: return fmethods.get(aname);
1.2 paf 133: }
134:
1.66 misha 135: HashStringMethod get_methods(){
1.65 misha 136: return fmethods;
137: }
138:
1.61 misha 139: bool is_vars_local(){
140: return fall_vars_local;
141: }
142:
143: void set_all_vars_local(){
1.57 misha 144: fall_vars_local=true;
145: }
146:
1.61 misha 147: bool is_partial(){
148: return fpartial;
149: }
150:
151: void set_partial(){
152: fpartial=true;
1.57 misha 153: }
154:
1.2 paf 155: void add_native_method(
1.43 paf 156: const char* cstr_name,
1.9 paf 157: Method::Call_type call_type,
1.43 paf 158: NativeCodePtr native_code,
1.62 misha 159: int min_numbered_params_count,
160: int max_numbered_params_count,
161: Method::Call_optimization call_optimization=Method::CO_WITHOUT_WCONTEXT);
1.66 misha 162:
1.68 misha 163: void set_method(const String& aname, Method* amethod);
164:
1.66 misha 165: /// overrided in VClass
1.68 misha 166: virtual void real_set_method(const String& aname, Method* amethod);
1.66 misha 167: virtual HashStringProperty* get_properties(){ return 0; };
168: virtual void set_base(VStateless_class* abase);
1.2 paf 169:
1.43 paf 170: VStateless_class* base_class() { return fbase; }
1.2 paf 171:
1.66 misha 172: bool derived_from(VStateless_class& vclass){
173: return fbase==&vclass || fbase && fbase->derived_from(vclass);
1.31 paf 174: }
175:
1.21 paf 176: /// @returns new value for current class, used in classes/ & VClass
1.66 misha 177: virtual Value* create_new_value(Pool&) { return 0; }
1.2 paf 178: };
179:
1.6 paf 180: /// Auto-object used for temporarily substituting/removing class method
1.2 paf 181: class Temp_method {
182: VStateless_class& fclass;
183: const String& fname;
1.43 paf 184: Method* saved_method;
1.2 paf 185: public:
1.43 paf 186: Temp_method(VStateless_class& aclass, const String& aname, Method* amethod) :
1.2 paf 187: fclass(aclass),
188: fname(aname),
189: saved_method(aclass.get_method(aname)) {
1.67 misha 190: fclass.set_method(aname, amethod);
1.2 paf 191: }
192: ~Temp_method() {
1.67 misha 193: fclass.set_method(fname, saved_method);
1.2 paf 194: }
195: };
196:
197: #endif
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