Annotation of parser3/src/types/pa_vclass.C, revision 1.49
1.7 paf 1: /** @file
2: Parser: @b class parser class impl.
1.1 paf 3:
1.45 moko 4: Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
1.7 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1 paf 6: */
7:
1.45 moko 8: #include "pa_vclass.h"
1.48 moko 9: #include "pa_vobject.h"
1.7 paf 10:
1.49 ! moko 11: volatile const char * IDENT_PA_VCLASS_C="$Id: pa_vclass.C,v 1.48 2013/10/04 21:21:55 moko Exp $" IDENT_PA_VCLASS_H;
1.1 paf 12:
1.39 misha 13: Property& VClass::get_property(const String& aname) {
1.40 misha 14: Property* result=ffields.get(aname);
15: if (result) {
1.39 misha 16: if (!result->getter && !result->setter) {
17: // can occur in ^process
18: Value *v=result->value;
1.24 paf 19: throw Exception("parser.compile",
1.39 misha 20: &aname,
21: "property can not be created, already exists field (%s) with that name", v ? v->get_class()->name_cstr() : "unknown");
22: }
1.40 misha 23:
24: // cloning existing property
25: result=new Property(*result);
1.24 paf 26: } else {
1.39 misha 27: result=new Property();
1.24 paf 28: }
1.40 misha 29: ffields.put(aname, result);
1.24 paf 30: return *result;
31: }
32:
1.41 misha 33: void VClass::real_set_method(const String& aname, Method* amethod) {
1.35 misha 34: if(aname.starts_with("GET_")){
1.36 misha 35: if(aname=="GET_DEFAULT")
1.40 misha 36: set_default_getter(amethod);
1.35 misha 37: else
1.40 misha 38: get_property(aname.mid(4, aname.length())).getter=amethod;
1.36 misha 39: } else if(aname.starts_with("SET_")){
1.44 moko 40: if(aname=="SET_DEFAULT")
41: set_default_setter(amethod);
42: else
43: get_property(aname.mid(4, aname.length())).setter=amethod;
1.36 misha 44: } else if(aname=="GET"){
1.40 misha 45: set_scalar(amethod);
1.36 misha 46: }
47:
1.41 misha 48: // NOT under 'else' for backward compatiblilty:
1.25 paf 49: // if someone used get_xxx names to name regular methods
1.24 paf 50: // still register method:
1.41 misha 51: VStateless_class::real_set_method(aname, amethod);
1.39 misha 52: }
53:
54: void VClass::set_base(VStateless_class* abase){
55: VStateless_class::set_base(abase);
1.42 misha 56: if(abase)
57: if(HashStringProperty *props=abase->get_properties())
1.39 misha 58: ffields.merge_dont_replace(*props);
1.42 misha 59: else
60: throw Exception("parser.compile",
61: 0,
62: "Class %s base class (%s) is not user-defined", name_cstr(), abase->name_cstr());
1.39 misha 63: }
64:
65: Value* VClass::as(const char* atype) {
66: Value* result=Value::as(atype);
67: return result!=0 ? result : fbase ? fbase->as(atype) : 0;
1.11 paf 68: }
69:
1.22 paf 70: /// VClass: $CLASS, (field/property)=STATIC value;(method)=method_ref with self=object_class
1.39 misha 71: Value* VClass::get_element(Value& aself, const String& aname) {
1.22 paf 72: // simple things first: $field=static field/property
1.43 misha 73: if(Property* prop=ffields.get(aname)) {
74: if(prop->getter)
1.39 misha 75: return new VJunction(aself, prop->getter, true /*is_getter*/);
1.35 misha 76:
1.46 moko 77: if(prop->setter){
78: if(Value *result=get_default_getter(aself, aname))
79: return result;
80: throw Exception(PARSER_RUNTIME, 0, "this property has no getter method (@GET_%s[])", aname.cstr());
81: }
1.39 misha 82:
83: // just field, can be 0 as we don't remove
84: return prop->value;
1.21 paf 85: }
86:
1.14 paf 87: // $CLASS, $method, or other base element
1.43 misha 88: if(Value* result=VStateless_class::get_element(aself, aname))
1.39 misha 89: return result;
1.7 paf 90:
1.35 misha 91: // no field or method found: looking for default getter
1.44 moko 92: return get_default_getter(aself, aname);
1.7 paf 93: }
94:
1.43 misha 95: static void add_field(
96: HashStringProperty::key_type key,
97: HashStringProperty::value_type prop,
98: HashStringValue* result
99: ){
100: if(prop->value)
101: result->put(key, prop->value);
102: }
103:
1.47 misha 104: HashStringValue* VClass::get_hash() {
1.43 misha 105: HashStringValue* result=new HashStringValue();
106: ffields.for_each(add_field, result);
107: return result;
108: }
109:
1.25 paf 110: /// VClass: (field/property)=value - static values only
1.48 moko 111: const VJunction* VClass::put_element(Value& aself, const String& aname, Value* avalue) {
1.40 misha 112: if(Property* prop=ffields.get(aname)) {
1.39 misha 113: if (prop->setter)
114: return new VJunction(aself, prop->setter);
1.29 paf 115:
1.46 moko 116: if(prop->getter){
117: if(VJunction *result=get_default_setter(aself, aname))
118: return result;
119: throw Exception(PARSER_RUNTIME, 0, "this property has no setter method (@SET_%s[value])", aname.cstr());
120: }
1.39 misha 121:
122: // just field, value can be 0 and unlike usual we don't remove it
123: prop->value=avalue;
1.49 ! moko 124: return PUT_ELEMENT_REPLACED_ELEMENT;
1.39 misha 125: } else {
1.49 ! moko 126: if(VJunction *result=get_default_setter(aself, aname))
! 127: return result;
! 128:
1.40 misha 129: prop=new Property();
130: prop->value=avalue;
131: ffields.put(aname, prop);
132:
133: Array_iterator<VStateless_class *> i(fderived);
134: while(i.has_next()) {
135: HashStringProperty *props=i.next()->get_properties();
136: if(props)
137: props->put_dont_replace(aname, prop);
138: }
1.39 misha 139: }
1.49 ! moko 140: return 0;
1.7 paf 141: }
142:
1.48 moko 143: /// part of put_element
144: const VJunction* VClass::put_element_replace_only(Value& aself, const String& aname, Value* avalue) {
145: if(Property* prop=ffields.get(aname)) {
146: if (prop->setter)
147: return new VJunction(aself, prop->setter);
148:
149: if(prop->getter){
150: if(VJunction *result=get_default_setter(aself, aname))
151: return result;
152: throw Exception(PARSER_RUNTIME, 0, "this property has no setter method (@SET_%s[value])", aname.cstr());
153: }
154:
155: // just field, value can be 0 and unlike usual we don't remove it
156: prop->value=avalue;
157: return PUT_ELEMENT_REPLACED_ELEMENT;
158: }
159: return 0;
160: }
161:
1.7 paf 162: /// @returns object of this class
1.39 misha 163: Value* VClass::create_new_value(Pool&) {
164: return new VObject(*this);
1.1 paf 165: }
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