--- parser3/src/main/compile_tools.C 2001/02/22 13:52:26 1.8 +++ parser3/src/main/compile_tools.C 2001/06/28 07:41:59 1.35 @@ -1,41 +1,86 @@ -/* - $Id: compile_tools.C,v 1.8 2001/02/22 13:52:26 paf Exp $ +/** @file + Parser: compiler support helper functions. + + Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) + + Author: Alexander Petrosyan (http://design.ru/paf) + + $Id: compile_tools.C,v 1.35 2001/06/28 07:41:59 parser Exp $ */ +static char *RCSId="$Id: compile_tools.C,v 1.35 2001/06/28 07:41:59 parser Exp $"; #include "compile_tools.h" #include "pa_string.h" #include "pa_array.h" #include "pa_exception.h" -#include "pa_value.h" - -Array *L(Value *value) { - // empty ops array - Array *result=N(value->pool()); +#include "pa_vstring.h" +#include "pa_vdouble.h" - // append OP_STRING +void PV(Array/**/ *result, Value *value) { + // append OP_VALUE Operation op; op.code=OP_VALUE; *result+=op.cast; // append 'value' *result+=value; +} + +void PCA(Array/**/ *result, Array/**/ *code_array) { + // append OP_CODE + Operation op; op.code=OP_CURLY_CODE__STORE_PARAM; + *result+=op.cast; + + // append 'vstring' + *result+=code_array; +} + +void PEA(Array/**/ *result, Array/**/ *code_array) { + // append OP_CODE + Operation op; op.code=OP_EXPR_CODE__STORE_PARAM; + *result+=op.cast; + + // append 'vstring' + *result+=code_array; +} + +Array *VL(Value *value) { + // empty ops array + Array *result=N(value->pool()); + + // append 'value' to 'result' + PV(result, value); return result; } -String *LA2S(Array *literal_string_array, int offset) { - return static_cast(literal_string_array->get(offset+1))->get_string(); +Value *LA2V(Array *literal_string_array, int offset) { + Operation op; + op.cast=literal_string_array->get(offset+0); + if(op.code!=OP_VALUE) + return 0; + + return static_cast(literal_string_array->get(offset+1)); } +void change_string_literal_to_double_literal(Array *literal_string_array) { + VString *vstring=static_cast(literal_string_array->get(1)); + Value *value=vstring->as_expr_result(); + literal_string_array->put(1, value); +} +void change_string_literal_to_write_string_literal(Array *literal_string_array) { + Operation op; op.code=OP_STRING__WRITE; + literal_string_array->put(0, op.cast); +} -void push_LS(struct parse_control *pc, lexical_state new_state) { - if(pc->spstack[pc->sp++]=pc->ls; pc->ls=new_state; +void push_LS(parse_control& pc, lexical_state new_state) { + if(pc.sppool->THROW(0, 0, 0, "push_LS: stack overflow"); + pc.pool->THROW(0, 0, 0, "push_LS: stack overflow"); } -void pop_LS(struct parse_control *pc) { - if(--pc->sp>=0) - pc->ls=pc->stack[pc->sp]; +void pop_LS(parse_control& pc) { + if(--pc.sp>=0) + pc.ls=pc.stack[pc.sp]; else - pc->pool->THROW(0, 0, 0, "push_LS: stack underflow"); + pc.pool->THROW(0, 0, 0, "pop_LS: stack underflow"); }