Annotation of parser3/src/types/pa_vclass.h, revision 1.33
1.13 paf 1: /** @file
1.14 paf 2: Parser: @b class parser class decl.
1.13 paf 3:
1.23 paf 4: Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
1.24 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1 paf 6: */
7:
8: #ifndef PA_VCLASS_H
9: #define PA_VCLASS_H
1.26 paf 10:
1.33 ! paf 11: static const char* IDENT_VCLASS_H="$Date: 2002/08/12 14:21:52 $";
1.1 paf 12:
1.8 paf 13: #include "pa_vstateless_class.h"
1.18 parser 14: //#include "pa_vhash.h"
1.1 paf 15: #include "pa_vjunction.h"
1.22 paf 16: #include "pa_vobject.h"
1.1 paf 17:
1.13 paf 18: /** stores
1.25 paf 19: - static fields: VClass::ffields
1.13 paf 20: */
1.8 paf 21: class VClass : public VStateless_class {
1.1 paf 22: public: // Value
23:
1.28 paf 24: const char *type() const { return name_cstr(); }
1.29 paf 25:
26: Value *as(const char *atype) {
27: if(Value *result=Value::as(atype))
28: return result;
29: else
30: return fbase?fbase->as(atype):0;
31: }
1.20 parser 32:
33: /// VClass: true
34: Value *as_expr_result(bool) { return NEW VBool(pool(), as_bool()); }
35: /// VClass: true
36: bool as_bool() const { return true; }
1.9 paf 37:
1.33 ! paf 38: /// VClass: (field)=STATIC value;(method)=method_ref with self=object_class
! 39: Value *get_element(const String& aname, Value *aself) {
! 40: // $method or other base element
! 41: if(Value *result=VStateless_class::get_element(aname, aself))
! 42: return result;
! 43:
1.16 paf 44: // $field=static field
1.33 ! paf 45: if(Value *result=static_cast<Value *>(ffields.get(aname)))
1.8 paf 46: return result;
1.33 ! paf 47:
! 48: return 0;
1.8 paf 49: }
1.1 paf 50:
1.33 ! paf 51: /// VClass: (field)=value - static values only
! 52: /*override*/ bool put_element(const String& aname, Value *avalue, bool replace) {
! 53: try {
! 54: if(fbase && fbase->put_element(aname, avalue, true))
! 55: return true; // replaced in base
! 56: } catch(Exception) { /* ignore "can not store to stateless_class errors */ }
! 57:
! 58: if(replace)
! 59: return ffields.put_replace(aname, avalue);
! 60: else {
! 61: ffields.put(aname, avalue);
! 62: return false;
! 63: }
1.22 paf 64: }
65:
66: /// @returns object of this class
1.31 paf 67: /*override*/ Value *create_new_value(Pool& ) {
1.22 paf 68: return NEW VObject(pool(), *this);
1.11 paf 69: }
1.1 paf 70:
71: public: // usage
72:
1.8 paf 73: VClass(Pool& apool) : VStateless_class(apool),
74: ffields(apool) {
1.1 paf 75: }
76:
1.12 paf 77: private:
78:
1.1 paf 79: void set_field(const String& name, Value *value) {
80: if(fbase && fbase->replace_field(name, value))
81: return;
82:
83: ffields.put(name, value);
84: }
85:
86: Value *get_field(const String& name) {
87: Value *result=static_cast<Value *>(ffields.get(name));
88: if(!result && fbase)
89: result=fbase->get_field(name);
90: return result;
91: }
1.8 paf 92:
93: protected:
1.1 paf 94:
95: bool replace_field(const String& name, Value *value) {
96: return
97: (fbase && fbase->replace_field(name, value)) ||
98: ffields.put_replace(name, value);
99: }
1.4 paf 100:
1.25 paf 101: private: // self
1.1 paf 102:
103: Hash ffields;
1.25 paf 104:
1.1 paf 105: };
106:
107: #endif
E-mail: