Annotation of parser3/src/classes/double.C, revision 1.63
1.20 paf 1: /** @file
2: Parser: @b double parser class.
3:
1.62 misha 4: Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.43 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.48 paf 6: */
1.20 paf 7:
1.63 ! moko 8: static const char * const IDENT_DOUBLE_C="$Date: 2009-04-16 01:10:21 $";
1.1 paf 9:
1.24 paf 10: #include "classes.h"
1.54 paf 11: #include "pa_vmethod_frame.h"
12:
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vdouble.h"
15: #include "pa_vint.h"
1.60 misha 16: #include "pa_vbool.h"
1.1 paf 17:
1.22 paf 18: // externs
1.1 paf 19:
1.54 paf 20: void _string_format(Request& r, MethodParams&);
1.22 paf 21:
22: // class
23:
1.54 paf 24: class MDouble: public Methoded {
1.22 paf 25: public:
1.54 paf 26: MDouble();
1.22 paf 27: };
1.1 paf 28:
1.54 paf 29: // global variable
30:
31: DECLARE_CLASS_VAR(double, new MDouble, 0);
32:
1.1 paf 33: // methods
34:
1.54 paf 35: static void _int(Request& r, MethodParams& params) {
1.60 misha 36: // just checking (default) syntax validity, never really using it here, just for string.int compatibility
1.54 paf 37: if(params.count()>0)
1.59 paf 38: params.as_int(0, "default must be int", r);
1.45 paf 39:
1.54 paf 40: VDouble& vdouble=GET_SELF(r, VDouble);
41: r.write_no_lang(*new VInt(vdouble.as_int()));
1.1 paf 42: }
43:
1.54 paf 44: static void _double(Request& r, MethodParams& params) {
1.60 misha 45: // just checking (default) syntax validity, never really using it here, just for string.double compatibility
1.54 paf 46: if(params.count()>0)
1.59 paf 47: params.as_double(0, "default must be double", r);
1.45 paf 48:
1.54 paf 49: VDouble& vdouble=GET_SELF(r, VDouble);
50: r.write_no_lang(*new VDouble(vdouble.as_double()));
1.1 paf 51: }
52:
1.60 misha 53: static void _bool(Request& r, MethodParams& params) {
54: // just checking (default) syntax validity, never really using it here, just for string.bool compatibility
55: if(params.count()>0)
56: params.as_double(0, "default must be bool", r);
57:
58: VDouble& vdouble=GET_SELF(r, VDouble);
1.62 misha 59: r.write_no_lang(VBool::get(vdouble.as_bool()));
1.60 misha 60: }
61:
1.14 paf 62: typedef void (*vdouble_op_func_ptr)(VDouble& vdouble, double param);
63:
64: static void __inc(VDouble& vdouble, double param) { vdouble.inc(param); }
65: static void __dec(VDouble& vdouble, double param) { vdouble.inc(-param); }
66: static void __mul(VDouble& vdouble, double param) { vdouble.mul(param); }
67: static void __div(VDouble& vdouble, double param) { vdouble.div(param); }
68: static void __mod(VDouble& vdouble, double param) { vdouble.mod((int)param); }
69:
1.54 paf 70: static void vdouble_op(Request& r, MethodParams& params,
1.14 paf 71: vdouble_op_func_ptr func) {
1.54 paf 72: VDouble& vdouble=GET_SELF(r, VDouble);
73: double param=params.count()?
74: params.as_double(0, "param must be double", r):1/*used in inc/dec*/;
75: (*func)(vdouble, param);
1.1 paf 76: }
77:
1.54 paf 78: static void _inc(Request& r, MethodParams& params) { vdouble_op(r, params, &__inc); }
79: static void _dec(Request& r, MethodParams& params) { vdouble_op(r, params, &__dec); }
80: static void _mul(Request& r, MethodParams& params) { vdouble_op(r, params, &__mul); }
81: static void _div(Request& r, MethodParams& params) { vdouble_op(r, params, &__div); }
82: static void _mod(Request& r, MethodParams& params) { vdouble_op(r, params, &__mod); }
1.16 paf 83:
1.29 parser 84: // from string.C
85: extern
1.54 paf 86: const String* sql_result_string(Request& r, MethodParams& params,
87: HashStringValue*& options, Value*& default_code);
1.29 parser 88:
1.54 paf 89: static void _sql(Request& r, MethodParams& params) {
1.35 parser 90: double val;
1.54 paf 91: HashStringValue* options;
92: Value* default_code;
93: if(const String* string=sql_result_string(r, params, options, default_code))
1.35 parser 94: val=string->as_double();
95: else
1.39 parser 96: if(default_code)
1.46 paf 97: val=r.process_to_value(*default_code).as_double();
1.39 parser 98: else {
1.61 misha 99: throw Exception(PARSER_RUNTIME,
1.54 paf 100: 0,
1.39 parser 101: "produced no result, but no default option specified");
1.35 parser 102: }
1.54 paf 103: r.write_no_lang(*new VDouble(val));
1.29 parser 104: }
105:
1.22 paf 106: // constructor
107:
1.54 paf 108: MDouble::MDouble(): Methoded("double") {
1.9 paf 109: // ^double.int[]
1.45 paf 110: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.9 paf 111:
112: // ^double.double[]
1.45 paf 113: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.60 misha 114:
115: // ^double.bool[]
116: add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1);
1.9 paf 117:
1.14 paf 118: // ^double.inc[]
1.9 paf 119: // ^double.inc[offset]
1.22 paf 120: add_native_method("inc", Method::CT_DYNAMIC, _inc, 0, 1);
1.14 paf 121: // ^double.dec[]
122: // ^double.dec[offset]
1.22 paf 123: add_native_method("dec", Method::CT_DYNAMIC, _dec, 0, 1);
1.14 paf 124: // ^double.mul[k]
1.22 paf 125: add_native_method("mul", Method::CT_DYNAMIC, _mul, 1, 1);
1.14 paf 126: // ^double.div[d]
1.22 paf 127: add_native_method("div", Method::CT_DYNAMIC, _div, 1, 1);
1.14 paf 128: // ^double.mod[offset]
1.22 paf 129: add_native_method("mod", Method::CT_DYNAMIC, _mod, 1, 1);
1.12 paf 130:
1.20 paf 131: // ^double.format{format}
1.22 paf 132: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.29 parser 133:
1.36 parser 134: // ^sql[query]
135: // ^sql[query][$.limit(1) $.offset(2) $.default(0.0)]
1.34 parser 136: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.1 paf 137: }
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