Annotation of parser3/src/classes/int.C, revision 1.39
1.18 paf 1: /** @file
2: Parser: @b int parser class.
3:
1.39 ! paf 4: Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
1.38 paf 5: Author: Alexander Petrosyan <paf@design.ru> (http://paf.design.ru)
1.18 paf 6:
1.39 ! paf 7: $Id: int.C,v 1.38 2001/11/05 11:46:21 paf Exp $
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);
1.35 parser 61: double param=params->size()?params->as_double(0, "param must be numerical", r):1;
1.13 paf 62: (*func)(*vint, param);
1.1 paf 63: }
64:
1.19 paf 65: static void _inc(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__inc); }
66: static void _dec(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__dec); }
67: static void _mul(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__mul); }
68: static void _div(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__div); }
69: static void _mod(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__mod); }
1.15 paf 70:
1.26 parser 71: // from string.C
1.25 parser 72: extern
1.36 parser 73: const String* sql_result_string(Request& r, const String& method_name, MethodParams *params,
74: Hash *& options, Value *& default_code);
1.25 parser 75:
76: static void _sql(Request& r, const String& method_name, MethodParams *params) {
77: Pool& pool=r.pool();
78:
1.31 parser 79: int val;
1.32 parser 80: Hash *options;
1.36 parser 81: Value *default_code;
82: if(const String *string=sql_result_string(r, method_name, params, options, default_code))
1.31 parser 83: val=string->as_int();
84: else
1.36 parser 85: if(default_code)
86: val=r.process(*default_code).as_int();
87: else {
1.37 parser 88: throw Exception(0, 0,
1.31 parser 89: &method_name,
1.36 parser 90: "produced no result, but no default option specified");
1.31 parser 91: val=0; //calm, compiler
92: }
1.26 parser 93: VInt& result=*new(pool) VInt(pool, val);
1.25 parser 94: result.set_name(method_name);
1.26 parser 95: r.write_assign_lang(result);
1.25 parser 96: }
97:
1.20 paf 98: // constructor
99:
100: MInt::MInt(Pool& apool) : Methoded(apool) {
101: set_name(*NEW String(pool(), INT_CLASS_NAME));
102:
1.13 paf 103:
1.9 paf 104: // ^int.int[]
1.20 paf 105: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 0);
1.9 paf 106:
107: // ^int.double[]
1.20 paf 108: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 0);
1.9 paf 109:
110: // ^int.inc[]
111: // ^int.inc[offset]
1.20 paf 112: add_native_method("inc", Method::CT_DYNAMIC, _inc, 0, 1);
1.13 paf 113: // ^int.dec[]
114: // ^int.dec[offset]
1.20 paf 115: add_native_method("dec", Method::CT_DYNAMIC, _dec, 0, 1);
1.13 paf 116: // ^int.mul[k]
1.20 paf 117: add_native_method("mul", Method::CT_DYNAMIC, _mul, 1, 1);
1.13 paf 118: // ^int.div[d]
1.20 paf 119: add_native_method("div", Method::CT_DYNAMIC, _div, 1, 1);
1.13 paf 120: // ^int.mod[offset]
1.20 paf 121: add_native_method("mod", Method::CT_DYNAMIC, _mod, 1, 1);
1.13 paf 122:
1.12 paf 123:
1.18 paf 124: // ^int.format{format}
1.20 paf 125: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.26 parser 126:
1.32 parser 127: // ^sql[query]
128: // ^sql[query][$.limit(1) $.offset(2) $.default(0)]
1.30 parser 129: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.20 paf 130: }
131: // global variable
132:
133: Methoded *int_class;
134:
135: // creator
136:
137: Methoded *MInt_create(Pool& pool) {
138: return int_class=new(pool) MInt(pool);
1.1 paf 139: }
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