--- parser3/src/classes/double.C 2001/03/10 11:03:46 1.2 +++ parser3/src/classes/double.C 2007/04/23 10:30:09 1.61 @@ -1,73 +1,139 @@ -/* -$Id: double.C,v 1.2 2001/03/10 11:03:46 paf Exp $ +/** @file + Parser: @b double parser class. + + Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ +static const char * const IDENT_DOUBLE_C="$Date: 2007/04/23 10:30:09 $"; + +#include "classes.h" +#include "pa_vmethod_frame.h" + #include "pa_request.h" -#include "_double.h" #include "pa_vdouble.h" #include "pa_vint.h" +#include "pa_vbool.h" + +// externs + +void _string_format(Request& r, MethodParams&); -// global var +// class -VClass *double_class; +class MDouble: public Methoded { +public: + MDouble(); +public: // Methoded + bool used_directly() { return true; } +}; + +// global variable + +DECLARE_CLASS_VAR(double, new MDouble, 0); // methods -static void _int(Request& r, Array *) { - Pool& pool=r.pool(); - VDouble *vdouble=static_cast(r.self); - Value& value=*new(pool) VInt(pool, static_cast(vdouble->get_double())); - r.wcontext->write(value); +static void _int(Request& r, MethodParams& params) { + // just checking (default) syntax validity, never really using it here, just for string.int compatibility + if(params.count()>0) + params.as_int(0, "default must be int", r); + + VDouble& vdouble=GET_SELF(r, VDouble); + r.write_no_lang(*new VInt(vdouble.as_int())); +} + +static void _double(Request& r, MethodParams& params) { + // just checking (default) syntax validity, never really using it here, just for string.double compatibility + if(params.count()>0) + params.as_double(0, "default must be double", r); + + VDouble& vdouble=GET_SELF(r, VDouble); + r.write_no_lang(*new VDouble(vdouble.as_double())); } -static void _double(Request& r, Array *) { - Pool& pool=r.pool(); - VDouble *vdouble=static_cast(r.self); - Value& value=*new(pool) VDouble(pool, vdouble->get_double()); - r.wcontext->write(value); +static void _bool(Request& r, MethodParams& params) { + // just checking (default) syntax validity, never really using it here, just for string.bool compatibility + if(params.count()>0) + params.as_double(0, "default must be bool", r); + + VDouble& vdouble=GET_SELF(r, VDouble); + r.write_no_lang(*new VBool(vdouble.as_bool())); } -static void _inc(Request& r, Array *params) { - VDouble *vdouble=static_cast(r.self); - double increment=params->size()?static_cast(params->get(0))->get_double():1; - vdouble->inc(increment); +typedef void (*vdouble_op_func_ptr)(VDouble& vdouble, double param); + +static void __inc(VDouble& vdouble, double param) { vdouble.inc(param); } +static void __dec(VDouble& vdouble, double param) { vdouble.inc(-param); } +static void __mul(VDouble& vdouble, double param) { vdouble.mul(param); } +static void __div(VDouble& vdouble, double param) { vdouble.div(param); } +static void __mod(VDouble& vdouble, double param) { vdouble.mod((int)param); } + +static void vdouble_op(Request& r, MethodParams& params, + vdouble_op_func_ptr func) { + VDouble& vdouble=GET_SELF(r, VDouble); + double param=params.count()? + params.as_double(0, "param must be double", r):1/*used in inc/dec*/; + (*func)(vdouble, param); } -void initialize_double_class(Pool& pool, VClass& vclass) { - // ^double.int[] - String& INT_NAME=*new(pool) String(pool); - INT_NAME.APPEND_CONST("int"); +static void _inc(Request& r, MethodParams& params) { vdouble_op(r, params, &__inc); } +static void _dec(Request& r, MethodParams& params) { vdouble_op(r, params, &__dec); } +static void _mul(Request& r, MethodParams& params) { vdouble_op(r, params, &__mul); } +static void _div(Request& r, MethodParams& params) { vdouble_op(r, params, &__div); } +static void _mod(Request& r, MethodParams& params) { vdouble_op(r, params, &__mod); } + +// from string.C +extern +const String* sql_result_string(Request& r, MethodParams& params, + HashStringValue*& options, Value*& default_code); + +static void _sql(Request& r, MethodParams& params) { + double val; + HashStringValue* options; + Value* default_code; + if(const String* string=sql_result_string(r, params, options, default_code)) + val=string->as_double(); + else + if(default_code) + val=r.process_to_value(*default_code).as_double(); + else { + throw Exception(PARSER_RUNTIME, + 0, + "produced no result, but no default option specified"); + } + r.write_no_lang(*new VDouble(val)); +} + +// constructor - Method& INT_METHOD=*new(pool) Method(pool, - INT_NAME, - 0, 0, // min,max numbered_params_count - 0/*params_names*/, 0/*locals_names*/, - 0/*parser_code*/, _int - ); - vclass.add_method(INT_NAME, INT_METHOD); +MDouble::MDouble(): Methoded("double") { + // ^double.int[] + add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1); // ^double.double[] - String& DOUBLE_NAME=*new(pool) String(pool); - DOUBLE_NAME.APPEND_CONST("double"); + add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1); - Method& DOUBLE_METHOD=*new(pool) Method(pool, - DOUBLE_NAME, - 0, 0, // min,max numbered_params_count - 0/*params_names*/, 0/*locals_names*/, - 0/*parser_code*/, _double - ); - vclass.add_method(DOUBLE_NAME, DOUBLE_METHOD); - - // ^double.inc[] ^double.inc[offset] - String& INC_NAME=*new(pool) String(pool); - INC_NAME.APPEND_CONST("inc"); - - Method& INC_METHOD=*new(pool) Method(pool, - INC_NAME, - 0, 1, // min,max numbered_params_count - 0/*params_names*/, 0/*locals_names*/, - 0/*parser_code*/, _inc - ); - vclass.add_method(INC_NAME, INC_METHOD); + // ^double.bool[] + add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1); + + // ^double.inc[] + // ^double.inc[offset] + add_native_method("inc", Method::CT_DYNAMIC, _inc, 0, 1); + // ^double.dec[] + // ^double.dec[offset] + add_native_method("dec", Method::CT_DYNAMIC, _dec, 0, 1); + // ^double.mul[k] + add_native_method("mul", Method::CT_DYNAMIC, _mul, 1, 1); + // ^double.div[d] + add_native_method("div", Method::CT_DYNAMIC, _div, 1, 1); + // ^double.mod[offset] + add_native_method("mod", Method::CT_DYNAMIC, _mod, 1, 1); + + // ^double.format{format} + add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1); + + // ^sql[query] + // ^sql[query][$.limit(1) $.offset(2) $.default(0.0)] + add_native_method("sql", Method::CT_STATIC, _sql, 1, 2); } -