Annotation of parser3/src/classes/int.C, revision 1.34
1.18 paf 1: /** @file
2: Parser: @b int parser class.
3:
1.4 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.34 ! parser 5: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.18 paf 6:
1.34 ! parser 7: $Id: $
1.1 paf 8: */
9:
1.22 paf 10: #include "classes.h"
1.1 paf 11: #include "pa_request.h"
12: #include "pa_vdouble.h"
13: #include "pa_vint.h"
14:
1.20 paf 15: // externs
1.1 paf 16:
1.20 paf 17: void _string_format(Request& r, const String& method_name, MethodParams *);
18:
19: // defines
20:
21: #define INT_CLASS_NAME "int"
22:
23: // class
24:
25: class MInt : public Methoded {
26: public:
27: MInt(Pool& pool);
1.23 paf 28: public: // Methoded
1.25 parser 29: bool used_directly() { return true; }
1.20 paf 30: };
1.1 paf 31:
32: // methods
33:
1.24 paf 34: static void _int(Request& r, const String& method_name, MethodParams *) {
1.1 paf 35: Pool& pool=r.pool();
36: VInt *vint=static_cast<VInt *>(r.self);
1.24 paf 37: Value& result=*new(pool) VInt(pool, vint->get_int());
38: result.set_name(method_name);
39: r.write_no_lang(result);
1.1 paf 40: }
41:
1.24 paf 42: static void _double(Request& r, const String& method_name, MethodParams *) {
1.1 paf 43: Pool& pool=r.pool();
44: VInt *vint=static_cast<VInt *>(r.self);
1.24 paf 45: Value& result=*new(pool) VDouble(pool, vint->as_double());
46: result.set_name(method_name);
47: r.write_no_lang(result);
1.1 paf 48: }
49:
1.13 paf 50: typedef void (*vint_op_func_ptr)(VInt& vint, double param);
51:
52: static void __inc(VInt& vint, double param) { vint.inc((int)param); }
53: static void __dec(VInt& vint, double param) { vint.inc((int)-param); }
54: static void __mul(VInt& vint, double param) { vint.mul(param); }
55: static void __div(VInt& vint, double param) { vint.div(param); }
56: static void __mod(VInt& vint, double param) { vint.mod((int)param); }
57:
1.19 paf 58: static void vint_op(Request& r, MethodParams *params,
1.13 paf 59: vint_op_func_ptr func) {
1.1 paf 60: VInt *vint=static_cast<VInt *>(r.self);
1.13 paf 61: double param=params->size()?
62: r.process(
1.19 paf 63: params->get(0),
1.6 paf 64: 0/*no name*/,
1.16 paf 65: false/*don't intercept string*/).as_double():1;
1.13 paf 66: (*func)(*vint, param);
1.1 paf 67: }
68:
1.19 paf 69: static void _inc(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__inc); }
70: static void _dec(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__dec); }
71: static void _mul(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__mul); }
72: static void _div(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__div); }
73: static void _mod(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__mod); }
1.15 paf 74:
1.26 parser 75: // from string.C
1.25 parser 76: extern
1.29 parser 77: const String* sql_result_string(Request& r, const String& method_name,
1.32 parser 78: MethodParams *params,
79: Hash *&options);
1.25 parser 80:
81: static void _sql(Request& r, const String& method_name, MethodParams *params) {
82: Pool& pool=r.pool();
83:
1.31 parser 84: int val;
1.32 parser 85: Hash *options;
86: if(const String *string=sql_result_string(r, method_name, params, options))
1.31 parser 87: val=string->as_int();
88: else
1.32 parser 89: if(options) {
90: if(Value *vdefault=(Value *)options->get(*sql_default_name))
91: val=r.process(*vdefault).as_int();
92: else {
93: PTHROW(0, 0,
94: &method_name,
95: "produced no result, but no default option specified");
96: val=0; //calm, compiler
97: }
98: } else {
1.31 parser 99: PTHROW(0, 0,
100: &method_name,
1.32 parser 101: "produced no result, but no options (no default) specified");
1.31 parser 102: val=0; //calm, compiler
103: }
1.26 parser 104: VInt& result=*new(pool) VInt(pool, val);
1.25 parser 105: result.set_name(method_name);
1.26 parser 106: r.write_assign_lang(result);
1.25 parser 107: }
108:
1.20 paf 109: // constructor
110:
111: MInt::MInt(Pool& apool) : Methoded(apool) {
112: set_name(*NEW String(pool(), INT_CLASS_NAME));
113:
1.13 paf 114:
1.9 paf 115: // ^int.int[]
1.20 paf 116: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 0);
1.9 paf 117:
118: // ^int.double[]
1.20 paf 119: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 0);
1.9 paf 120:
121: // ^int.inc[]
122: // ^int.inc[offset]
1.20 paf 123: add_native_method("inc", Method::CT_DYNAMIC, _inc, 0, 1);
1.13 paf 124: // ^int.dec[]
125: // ^int.dec[offset]
1.20 paf 126: add_native_method("dec", Method::CT_DYNAMIC, _dec, 0, 1);
1.13 paf 127: // ^int.mul[k]
1.20 paf 128: add_native_method("mul", Method::CT_DYNAMIC, _mul, 1, 1);
1.13 paf 129: // ^int.div[d]
1.20 paf 130: add_native_method("div", Method::CT_DYNAMIC, _div, 1, 1);
1.13 paf 131: // ^int.mod[offset]
1.20 paf 132: add_native_method("mod", Method::CT_DYNAMIC, _mod, 1, 1);
1.13 paf 133:
1.12 paf 134:
1.18 paf 135: // ^int.format{format}
1.20 paf 136: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.26 parser 137:
1.32 parser 138: // ^sql[query]
139: // ^sql[query][$.limit(1) $.offset(2) $.default(0)]
1.30 parser 140: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.20 paf 141: }
142: // global variable
143:
144: Methoded *int_class;
145:
146: // creator
147:
148: Methoded *MInt_create(Pool& pool) {
149: return int_class=new(pool) MInt(pool);
1.1 paf 150: }
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