Annotation of parser3/src/classes/int.C, revision 1.32
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)
1.18 paf 5:
1.5 paf 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.4 paf 7:
1.32 ! parser 8: $Id: int.C,v 1.31 2001/07/27 12:59:36 parser Exp $
1.1 paf 9: */
1.32 ! parser 10: static const char *RCSId="$Id: int.C,v 1.31 2001/07/27 12:59:36 parser Exp $";
1.1 paf 11:
1.22 paf 12: #include "classes.h"
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vdouble.h"
15: #include "pa_vint.h"
16:
1.20 paf 17: // externs
1.1 paf 18:
1.20 paf 19: void _string_format(Request& r, const String& method_name, MethodParams *);
20:
21: // defines
22:
23: #define INT_CLASS_NAME "int"
24:
25: // class
26:
27: class MInt : public Methoded {
28: public:
29: MInt(Pool& pool);
1.23 paf 30: public: // Methoded
1.25 parser 31: bool used_directly() { return true; }
1.20 paf 32: };
1.1 paf 33:
34: // methods
35:
1.24 paf 36: static void _int(Request& r, const String& method_name, MethodParams *) {
1.1 paf 37: Pool& pool=r.pool();
38: VInt *vint=static_cast<VInt *>(r.self);
1.24 paf 39: Value& result=*new(pool) VInt(pool, vint->get_int());
40: result.set_name(method_name);
41: r.write_no_lang(result);
1.1 paf 42: }
43:
1.24 paf 44: static void _double(Request& r, const String& method_name, MethodParams *) {
1.1 paf 45: Pool& pool=r.pool();
46: VInt *vint=static_cast<VInt *>(r.self);
1.24 paf 47: Value& result=*new(pool) VDouble(pool, vint->as_double());
48: result.set_name(method_name);
49: r.write_no_lang(result);
1.1 paf 50: }
51:
1.13 paf 52: typedef void (*vint_op_func_ptr)(VInt& vint, double param);
53:
54: static void __inc(VInt& vint, double param) { vint.inc((int)param); }
55: static void __dec(VInt& vint, double param) { vint.inc((int)-param); }
56: static void __mul(VInt& vint, double param) { vint.mul(param); }
57: static void __div(VInt& vint, double param) { vint.div(param); }
58: static void __mod(VInt& vint, double param) { vint.mod((int)param); }
59:
1.19 paf 60: static void vint_op(Request& r, MethodParams *params,
1.13 paf 61: vint_op_func_ptr func) {
1.1 paf 62: VInt *vint=static_cast<VInt *>(r.self);
1.13 paf 63: double param=params->size()?
64: r.process(
1.19 paf 65: params->get(0),
1.6 paf 66: 0/*no name*/,
1.16 paf 67: false/*don't intercept string*/).as_double():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
1.29 parser 79: const String* sql_result_string(Request& r, const String& method_name,
1.32 ! parser 80: MethodParams *params,
! 81: Hash *&options);
1.25 parser 82:
83: static void _sql(Request& r, const String& method_name, MethodParams *params) {
84: Pool& pool=r.pool();
85:
1.31 parser 86: int val;
1.32 ! parser 87: Hash *options;
! 88: if(const String *string=sql_result_string(r, method_name, params, options))
1.31 parser 89: val=string->as_int();
90: else
1.32 ! parser 91: if(options) {
! 92: if(Value *vdefault=(Value *)options->get(*sql_default_name))
! 93: val=r.process(*vdefault).as_int();
! 94: else {
! 95: PTHROW(0, 0,
! 96: &method_name,
! 97: "produced no result, but no default option specified");
! 98: val=0; //calm, compiler
! 99: }
! 100: } else {
1.31 parser 101: PTHROW(0, 0,
102: &method_name,
1.32 ! parser 103: "produced no result, but no options (no default) specified");
1.31 parser 104: val=0; //calm, compiler
105: }
1.26 parser 106: VInt& result=*new(pool) VInt(pool, val);
1.25 parser 107: result.set_name(method_name);
1.26 parser 108: r.write_assign_lang(result);
1.25 parser 109: }
110:
1.20 paf 111: // constructor
112:
113: MInt::MInt(Pool& apool) : Methoded(apool) {
114: set_name(*NEW String(pool(), INT_CLASS_NAME));
115:
1.13 paf 116:
1.9 paf 117: // ^int.int[]
1.20 paf 118: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 0);
1.9 paf 119:
120: // ^int.double[]
1.20 paf 121: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 0);
1.9 paf 122:
123: // ^int.inc[]
124: // ^int.inc[offset]
1.20 paf 125: add_native_method("inc", Method::CT_DYNAMIC, _inc, 0, 1);
1.13 paf 126: // ^int.dec[]
127: // ^int.dec[offset]
1.20 paf 128: add_native_method("dec", Method::CT_DYNAMIC, _dec, 0, 1);
1.13 paf 129: // ^int.mul[k]
1.20 paf 130: add_native_method("mul", Method::CT_DYNAMIC, _mul, 1, 1);
1.13 paf 131: // ^int.div[d]
1.20 paf 132: add_native_method("div", Method::CT_DYNAMIC, _div, 1, 1);
1.13 paf 133: // ^int.mod[offset]
1.20 paf 134: add_native_method("mod", Method::CT_DYNAMIC, _mod, 1, 1);
1.13 paf 135:
1.12 paf 136:
1.18 paf 137: // ^int.format{format}
1.20 paf 138: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.26 parser 139:
1.32 ! parser 140: // ^sql[query]
! 141: // ^sql[query][$.limit(1) $.offset(2) $.default(0)]
1.30 parser 142: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.20 paf 143: }
144: // global variable
145:
146: Methoded *int_class;
147:
148: // creator
149:
150: Methoded *MInt_create(Pool& pool) {
151: return int_class=new(pool) MInt(pool);
1.1 paf 152: }
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