--- parser3/src/classes/double.C 2001/03/11 08:44:39 1.7 +++ parser3/src/classes/double.C 2002/10/09 11:49:14 1.52 @@ -1,49 +1,137 @@ -/* - Parser - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://design.ru/paf) +/** @file + Parser: @b double parser class. - $Id: double.C,v 1.7 2001/03/11 08:44:39 paf Exp $ + Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ +static const char* IDENT_DOUBLE_C="$Date: 2002/10/09 11:49:14 $"; + +#include "classes.h" #include "pa_request.h" -#include "_double.h" #include "pa_vdouble.h" #include "pa_vint.h" -// global var +// externs + +void _string_format(Request& r, const String& method_name, MethodParams *); + +// class -VClass *double_class; +class MDouble : public Methoded { +public: + MDouble(Pool& pool); +public: // Methoded + bool used_directly() { return true; } +}; // methods -static void _int(Request& r, Array *) { +static void _int(Request& r, const String& method_name, MethodParams *params) { 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, String::Untaint_lang::NO /*always object, not string*/); + // just checking (default) syntax validity, never really using it here, just for string.int compatibility + if(params->size()>0) + params->as_junction(0, "default must be int"); + + VDouble *vdouble=static_cast(r.get_self()); + Value& result=*new(pool) VInt(pool, vdouble->as_int()); + r.write_no_lang(result); } -static void _double(Request& r, Array *) { +static void _double(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - VDouble *vdouble=static_cast(r.self); - Value& value=*new(pool) VDouble(pool, vdouble->get_double()); - r.wcontext->write(value, String::Untaint_lang::NO /*always object, not string*/); -} - -static void _inc(Request& r, Array *params) { - VDouble *vdouble=static_cast(r.self); - double increment=params->size()? - r.autocalc( - *static_cast(params->get(0)), - 0/*no name*/, - false/*don't make it string*/).get_double():1; - vdouble->inc(increment); -} - -void initialize_double_class(Pool& pool, VClass& vclass) { - vclass.add_native_method("int", _int, 0, 0); // ^double.int[] - vclass.add_native_method("double", _double, 0, 0); // ^double.double[] - vclass.add_native_method("inc", _inc, 0, 1); // ^double.inc[] ^double.inc[offset] + // just checking (default) syntax validity, never really using it here, just for string.doube compatibility + if(params->size()>0) + params->as_junction(0, "default must be double"); + + VDouble *vdouble=static_cast(r.get_self()); + Value& result=*new(pool) VDouble(pool, vdouble->as_double()); + r.write_no_lang(result); } +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=static_cast(r.get_self()); + double param=params->size()? + params->as_double(0, "param must be double", r):1/*used in inc/dec*/; + (*func)(*vdouble, param); +} + +static void _inc(Request& r, const String&, MethodParams *params) { vdouble_op(r, params, &__inc); } +static void _dec(Request& r, const String&, MethodParams *params) { vdouble_op(r, params, &__dec); } +static void _mul(Request& r, const String&, MethodParams *params) { vdouble_op(r, params, &__mul); } +static void _div(Request& r, const String&, MethodParams *params) { vdouble_op(r, params, &__div); } +static void _mod(Request& r, const String&, MethodParams *params) { vdouble_op(r, params, &__mod); } + +// from string.C +extern +const String* sql_result_string(Request& r, const String& method_name, MethodParams *params, + Hash *& options, Value *& default_code); + +static void _sql(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + + double val; + Hash *options; + Value *default_code; + if(const String *string=sql_result_string(r, method_name, 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", + &method_name, + "produced no result, but no default option specified"); + val=0; //calm, compiler + } + VDouble& result=*new(pool) VDouble(pool, val); + r.write_no_lang(result); +} + +// constructor + +MDouble::MDouble(Pool& apool) : Methoded(apool, "double") { + // ^double.int[] + add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1); + + // ^double.double[] + add_native_method("double", Method::CT_DYNAMIC, _double, 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); +} +// global variable + +Methoded *double_class; + +// creator + +Methoded *MDouble_create(Pool& pool) { + return double_class=new(pool) MDouble(pool); +}