Annotation of parser3/src/types/pa_varray.h, revision 1.8
1.1 moko 1: /** @file
2: Parser: @b array parser type decl.
3:
4: Copyright (c) 2001-2023 Art. Lebedev Studio (http://www.artlebedev.com)
5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
6: */
7:
8: #ifndef PA_VARRAY_H
9: #define PA_VARRAY_H
10:
1.8 ! moko 11: #define IDENT_PA_VARRAY_H "$Id: pa_varray.h,v 1.7 2024/09/20 01:13:50 moko Exp $"
1.1 moko 12:
13: #include "classes.h"
14: #include "pa_value.h"
15: #include "pa_array.h"
16: #include "pa_vhash.h"
17: #include "pa_vint.h"
18: #include "pa_globals.h"
19: #include "pa_symbols.h"
20:
21: // defines
22:
1.2 moko 23: #define VARRAY_TYPE "array"
1.1 moko 24:
25: extern Methoded* array_class;
26:
1.2 moko 27: /// Sparse Array
28: template<typename T> class SparseArray: public Array<T> {
1.5 moko 29:
30: mutable size_t fused;
31:
1.2 moko 32: public:
1.5 moko 33: inline SparseArray(size_t initial=0) : Array<T>(initial), fused(0) {}
1.2 moko 34:
1.6 moko 35: inline SparseArray(size_t size, T* elements) : Array<T>(size), fused(size) {
36: T* elements_end=elements + size;
37: for(T* dst=this->felements; elements < elements_end;)
38: *dst++=*elements++;
39: this->fsize=size;
40: }
41:
1.4 moko 42: inline T get(size_t index) const {
43: return index < this->count() ? this->felements[index] : NULL;
44: }
45:
1.5 moko 46: inline void put(size_t index, T element){
47: this->fit(index);
1.2 moko 48: this->felements[index]=element;
1.5 moko 49: if(index >= this->fsize){
50: this->fsize=index+1;
51: }
52: }
53:
54: inline void insert(size_t index, T element) {
55: if(index >= this->fsize){
56: this->fit(index);
57: this->felements[index]=element;
58: this->fsize=index+1;
59: } else {
60: Array<T>::insert(index, element);
61: }
62: }
63:
64: size_t used() const{
65: if(!fused){
66: for(Array_iterator<T> i(*this); i;) {
67: if(i.next())
68: fused++;
69: }
70: }
71: return fused;
72: }
73:
74: inline void clear(size_t index) {
1.7 moko 75: if(index < this->count()){
1.5 moko 76: this->felements[index]=NULL;
1.7 moko 77: if(index+1 == this->count())
78: this->fsize--;
1.2 moko 79: }
80: }
1.5 moko 81:
82: inline void clear() { Array<T>::clear(); }
83:
1.8 ! moko 84: inline void remove(size_t index) {
! 85: if(index < this->count()){
! 86: Array<T>::remove(index);
! 87: }
! 88: }
! 89:
1.5 moko 90: inline void invalidate(){
91: fused=0;
92: }
93:
1.2 moko 94: };
95:
96:
1.1 moko 97: class VArray: public VHashBase {
98: public: // value
99:
100: override const char* type() const { return VARRAY_TYPE; }
101: override VStateless_class *get_class() { return array_class; }
102:
1.5 moko 103: /// VArray: used elements count
104: override int as_int() const { return farray.used(); }
105: override double as_double() const { return farray.used(); }
106: override bool is_defined() const { return farray.used()!=0; }
107: override bool as_bool() const { return farray.used()!=0; }
108: override Value& as_expr_result() { return *new VInt(farray.used()); }
1.1 moko 109:
110: /// VArray: virtual hash
111: override HashStringValue *get_hash() { return &hash(); }
112: override HashStringValue* get_fields() { return &hash(); }
113: override HashStringValue* get_fields_reference() { return &hash(); }
114:
115: /// VArray: json-string
116: override const String* get_json_string(Json_options& options);
117:
118: /// VArray: (key)=value
119: override Value* get_element(const String& aname) {
120: // $element first
1.4 moko 121: if(Value* result=farray.get(index(aname)))
1.1 moko 122: return result;
123:
124: // $fields -- pseudo field to make 'hash' and 'array' more like 'table'
125: if(SYMBOLS_EQ(aname,FIELDS_SYMBOL))
126: return this;
127:
128: #if !defined(FEATURE_GET_ELEMENT4CALL) || !defined(OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL)
129: // $method, CLASS, CLASS_NAME
130: if(Value* result=VStateless_object::get_element(aname))
131: return result;
132: #endif
133: return NULL;
134: }
135:
136: #ifdef FEATURE_GET_ELEMENT4CALL
137: override Value* get_element4call(const String& aname) {
138: // $method first
139: if(Value* result=VStateless_object::get_element(aname))
140: return result;
141:
142: // $element
1.4 moko 143: if(Value* result=farray.get(index(aname)))
1.1 moko 144: return result;
145:
146: return bark("%s method not found", &aname);
147: }
148: #endif
149:
150: /// VArray: (key)=value
151: override const VJunction* put_element(const String& aname, Value* avalue) {
1.5 moko 152: farray.put(index(aname), avalue);
153: invalidate();
1.1 moko 154: return 0;
155: }
156:
157: public: // VHashBase
158:
159: override HashStringValue& hash();
160: override void set_default(Value*) { }
161: override Value* get_default() { return 0; }
1.5 moko 162: override void add(Value* avalue) { farray+=avalue; /* only json uses it, thus no need to invalidate()*/ }
1.1 moko 163:
164: public: // usage
165:
1.5 moko 166: VArray(size_t initial=0): farray(initial), fhash(0) {}
1.6 moko 167: VArray(size_t size, Value** elements): farray(size, elements), fhash(0) {}
1.5 moko 168: ~VArray() { invalidate(); }
1.1 moko 169:
170: ArrayValue &array() { return farray; }
171:
172: static size_t index(int aindex){
173: if(aindex<0)
174: throw Exception("number.format", 0, "out of range (negative)");
175: return aindex;
176: }
177:
1.7 moko 178: static size_t index(const String::Body& aindex){ return pa_atoui(aindex.cstr()); }
179: static size_t index(const String& aindex){ return pa_atoui(aindex.cstr(), 10, &aindex); }
1.1 moko 180: static size_t index(const Value& aindex){ return index(aindex.as_int()); }
181:
1.5 moko 182: bool contains(size_t index){
183: return farray.get(index) != NULL;
1.1 moko 184: }
185:
1.5 moko 186: void invalidate() {
1.1 moko 187: #ifdef USE_DESTRUCTORS
188: if(fhash)
189: delete(fhash);
190: #endif
191: fhash=0;
1.5 moko 192: farray.invalidate();
1.1 moko 193: }
194:
195: private:
196:
197: ArrayValue farray;
198: HashStringValue *fhash;
199:
200: };
201:
202: #endif
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