Annotation of parser3/src/classes/int.C, revision 1.42
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)
1.40 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.18 paf 6:
1.42 ! paf 7: $Id: int.C,v 1.41 2002/03/27 15:30:34 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:
1.42 ! paf 34: static void _int(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 35: Pool& pool=r.pool();
1.42 ! paf 36: Value *default_code=params->size()>0?
! 37: default_code=¶ms->as_junction(0, "default must be int"):0; // (default)
! 38:
1.1 paf 39: VInt *vint=static_cast<VInt *>(r.self);
1.24 paf 40: Value& result=*new(pool) VInt(pool, vint->get_int());
41: result.set_name(method_name);
42: r.write_no_lang(result);
1.1 paf 43: }
44:
1.42 ! paf 45: static void _double(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 46: Pool& pool=r.pool();
1.42 ! paf 47: Value *default_code=params->size()>0?
! 48: default_code=¶ms->as_junction(0, "default must be double"):0; // (default)
! 49:
1.1 paf 50: VInt *vint=static_cast<VInt *>(r.self);
1.24 paf 51: Value& result=*new(pool) VDouble(pool, vint->as_double());
52: result.set_name(method_name);
53: r.write_no_lang(result);
1.1 paf 54: }
55:
1.13 paf 56: typedef void (*vint_op_func_ptr)(VInt& vint, double param);
57:
58: static void __inc(VInt& vint, double param) { vint.inc((int)param); }
59: static void __dec(VInt& vint, double param) { vint.inc((int)-param); }
60: static void __mul(VInt& vint, double param) { vint.mul(param); }
61: static void __div(VInt& vint, double param) { vint.div(param); }
62: static void __mod(VInt& vint, double param) { vint.mod((int)param); }
63:
1.19 paf 64: static void vint_op(Request& r, MethodParams *params,
1.13 paf 65: vint_op_func_ptr func) {
1.1 paf 66: VInt *vint=static_cast<VInt *>(r.self);
1.35 parser 67: double param=params->size()?params->as_double(0, "param must be numerical", r):1;
1.13 paf 68: (*func)(*vint, param);
1.1 paf 69: }
70:
1.19 paf 71: static void _inc(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__inc); }
72: static void _dec(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__dec); }
73: static void _mul(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__mul); }
74: static void _div(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__div); }
75: static void _mod(Request& r, const String&, MethodParams *params) { vint_op(r, params, &__mod); }
1.15 paf 76:
1.26 parser 77: // from string.C
1.25 parser 78: extern
1.36 parser 79: const String* sql_result_string(Request& r, const String& method_name, MethodParams *params,
80: Hash *& options, Value *& default_code);
1.25 parser 81:
82: static void _sql(Request& r, const String& method_name, MethodParams *params) {
83: Pool& pool=r.pool();
84:
1.31 parser 85: int val;
1.32 parser 86: Hash *options;
1.36 parser 87: Value *default_code;
88: if(const String *string=sql_result_string(r, method_name, params, options, default_code))
1.31 parser 89: val=string->as_int();
90: else
1.36 parser 91: if(default_code)
92: val=r.process(*default_code).as_int();
93: else {
1.41 paf 94: throw Exception("parser.runtime",
1.31 parser 95: &method_name,
1.36 parser 96: "produced no result, but no default option specified");
1.31 parser 97: val=0; //calm, compiler
98: }
1.26 parser 99: VInt& result=*new(pool) VInt(pool, val);
1.25 parser 100: result.set_name(method_name);
1.26 parser 101: r.write_assign_lang(result);
1.25 parser 102: }
103:
1.20 paf 104: // constructor
105:
106: MInt::MInt(Pool& apool) : Methoded(apool) {
107: set_name(*NEW String(pool(), INT_CLASS_NAME));
108:
1.13 paf 109:
1.9 paf 110: // ^int.int[]
1.42 ! paf 111: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.9 paf 112:
113: // ^int.double[]
1.42 ! paf 114: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.9 paf 115:
116: // ^int.inc[]
117: // ^int.inc[offset]
1.20 paf 118: add_native_method("inc", Method::CT_DYNAMIC, _inc, 0, 1);
1.13 paf 119: // ^int.dec[]
120: // ^int.dec[offset]
1.20 paf 121: add_native_method("dec", Method::CT_DYNAMIC, _dec, 0, 1);
1.13 paf 122: // ^int.mul[k]
1.20 paf 123: add_native_method("mul", Method::CT_DYNAMIC, _mul, 1, 1);
1.13 paf 124: // ^int.div[d]
1.20 paf 125: add_native_method("div", Method::CT_DYNAMIC, _div, 1, 1);
1.13 paf 126: // ^int.mod[offset]
1.20 paf 127: add_native_method("mod", Method::CT_DYNAMIC, _mod, 1, 1);
1.13 paf 128:
1.12 paf 129:
1.18 paf 130: // ^int.format{format}
1.20 paf 131: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.26 parser 132:
1.32 parser 133: // ^sql[query]
134: // ^sql[query][$.limit(1) $.offset(2) $.default(0)]
1.30 parser 135: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.20 paf 136: }
137: // global variable
138:
139: Methoded *int_class;
140:
141: // creator
142:
143: Methoded *MInt_create(Pool& pool) {
144: return int_class=new(pool) MInt(pool);
1.1 paf 145: }
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