|
|
| version 1.32, 2001/03/27 16:35:54 | version 1.63, 2009/05/20 09:08:53 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: compiler support helper functions. | Parser: compiler support helper functions. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | |
| */ | */ |
| static const char * const IDENT_COMPILE_TOOLS_C="$Date$"; | |
| #include "compile_tools.h" | #include "compile_tools.h" |
| #include "pa_string.h" | #include "pa_string.h" |
| #include "pa_array.h" | #include "pa_array.h" |
| Line 15 | Line 14 |
| #include "pa_vstring.h" | #include "pa_vstring.h" |
| #include "pa_vdouble.h" | #include "pa_vdouble.h" |
| void PV(Array/*<Operation>*/ *result, Value *value) { | Value* LA2V(ArrayOperation& literal_string_array, int offset, OP::OPCODE code) { |
| // append OP_VALUE | return literal_string_array[offset+0].code==code?literal_string_array[offset+2/*skip opcode&origin*/].value |
| Operation op; op.code=OP_VALUE; | :0; |
| *result+=op.cast; | } |
| // append 'value' | void maybe_change_string_literal_to_double_literal(ArrayOperation& literal_array) { |
| *result+=value; | assert(literal_array[0].code==OP::OP_VALUE); |
| } | VString& vstring=*static_cast<VString*>(literal_array[2/*opcode+origin*/].value); |
| if(isdigit(vstring.string().first_char())) | |
| void PCA(Array/*<Operation>*/ *result, Array/*<Operation>*/ *code_array) { | literal_array.put(2/*opcode+origin*/, &vstring.as_expr_result()); |
| // append OP_CODE | } |
| Operation op; op.code=OP_CURLY_CODE__STORE_PARAM; | |
| *result+=op.cast; | void change_string_literal_value(ArrayOperation& literal_string_array, const String& new_value) { |
| assert(literal_string_array[0].code==OP::OP_VALUE); | |
| // append 'vstring' | static_cast<VString*>(literal_string_array[2/*opcode+origin*/].value)->set_string(new_value); |
| *result+=code_array; | } |
| } | |
| void changetail_or_append(ArrayOperation& opcodes, | |
| void PEA(Array/*<Operation>*/ *result, Array/*<Operation>*/ *code_array) { | OP::OPCODE find, bool with_argument, OP::OPCODE replace, OP::OPCODE notfound) { |
| // append OP_CODE | int tail=opcodes.count()-(with_argument?2:1); |
| Operation op; op.code=OP_EXPR_CODE__STORE_PARAM; | if(tail>=0) { |
| *result+=op.cast; | Operation& op=opcodes.get_ref(tail); |
| if(op.code==find) { | |
| // append 'vstring' | op.code=replace; |
| *result+=code_array; | return; |
| } | } |
| } | |
| Array *VL(Value *value) { | |
| // empty ops array | opcodes+=Operation(notfound); |
| Array *result=N(value->pool()); | } |
| // append 'value' to 'result' | |
| PV(result, value); | bool maybe_change_first_opcode(ArrayOperation& opcodes, OP::OPCODE find, OP::OPCODE replace, bool strict) { |
| if(opcodes[0].code==find){ | |
| return result; | opcodes.put(0, replace); |
| } | return true; |
| } | |
| const String *SLA2S(Array *literal_string_array, int offset) { | if(strict) |
| Operation op; | assert(opcodes[0].code==find); |
| op.cast=literal_string_array->get(offset+0); | |
| if(op.code!=OP_VALUE) | return false; |
| return 0; | } |
| return static_cast<VString *>(literal_string_array->get(offset+1))->get_string(); | |
| } | bool maybe_change_first_opcode(ArrayOperation& opcodes, OP::OPCODE find, OP::OPCODE last, OP::OPCODE replace) { |
| if(opcodes[0].code==find && opcodes[opcodes.count()-1].code==last){ | |
| void change_string_literal_to_double_literal(Array *literal_string_array) { | opcodes.put(0, replace); |
| VString *vstring=static_cast<VString *>(literal_string_array->get(1)); | return true; |
| Value *value=vstring->as_expr_result(); | } |
| literal_string_array->put(1, value); | return false; |
| } | } |
| 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); | // OP_VALUE+origin+value+OP_GET_ELEMENT+OP_VALUE+origin+value+OP_GET_ELEMENT => OP_GET_OBJECT_ELEMENT+origin+value+[OP_VALUE]+origin+value+OP_GET_ELEMENT |
| } | bool maybe_make_get_object_element(ArrayOperation& opcodes, ArrayOperation& diving_code, size_t divine_count){ |
| if(divine_count!=8) | |
| void push_LS(parse_control& pc, lexical_state new_state) { | return false; |
| if(pc.sp<MAX_LEXICAL_STATES) { | |
| pc.stack[pc.sp++]=pc.ls; pc.ls=new_state; | assert(diving_code[0].code==OP::OP_VALUE); |
| if( | |
| diving_code[4].code==OP::OP_VALUE | |
| && diving_code[divine_count-1].code==OP::OP_GET_ELEMENT | |
| ){ | |
| O(opcodes, OP::OP_GET_OBJECT_ELEMENT); | |
| P(opcodes, diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value | |
| P(opcodes, diving_code, | |
| #ifdef OPTIMIZE_BYTECODE_USE_TWO_OPERANDS_INSTRUCTIONS | |
| 5, 3 | |
| #else | |
| 4, 4 | |
| #endif | |
| ); // copy specified tail | |
| return true; | |
| } | |
| return false; | |
| } | |
| // OP_VALUE+origin+value+OP_GET_ELEMENT+OP_WITH_READ+OP_VALUE+origin+value+OP_GET_ELEMENT+OP_GET_ELEMENT => OP_GET_OBJECT_VAR_ELEMENT+origin+value+[OP_VALUE]+origin+value+OP_GET_ELEMENT | |
| bool maybe_make_get_object_var_element(ArrayOperation& opcodes, ArrayOperation& diving_code, size_t divine_count){ | |
| if(divine_count!=10) | |
| return false; | |
| assert(diving_code[0].code==OP::OP_VALUE); | |
| if( | |
| diving_code[4].code==OP::OP_WITH_READ | |
| && diving_code[5].code==OP::OP_VALUE | |
| && diving_code[divine_count-1].code==OP::OP_GET_ELEMENT | |
| ){ | |
| O(opcodes, OP::OP_GET_OBJECT_VAR_ELEMENT); | |
| P(opcodes, diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value | |
| P(opcodes, diving_code, | |
| #ifdef OPTIMIZE_BYTECODE_USE_TWO_OPERANDS_INSTRUCTIONS | |
| 6, 3 | |
| #else | |
| 5, 4 | |
| #endif | |
| ); // copy specified tail | |
| return true; | |
| } | |
| return false; | |
| } | |
| void push_LS(Parse_control& pc, lexical_state new_state) { | |
| if(pc.ls_sp<MAX_LEXICAL_STATES) { | |
| pc.ls_stack[pc.ls_sp++]=pc.ls; | |
| pc.ls=new_state; | |
| } else | } else |
| pc.pool->THROW(0, 0, 0, "push_LS: stack overflow"); | throw Exception(0, 0, |
| "push_LS: ls_stack overflow"); | |
| } | } |
| void pop_LS(parse_control& pc) { | void pop_LS(Parse_control& pc) { |
| if(--pc.sp>=0) | if(--pc.ls_sp>=0) |
| pc.ls=pc.stack[pc.sp]; | pc.ls=pc.ls_stack[pc.ls_sp]; |
| else | else |
| pc.pool->THROW(0, 0, 0, "push_LS: stack underflow"); | throw Exception(0, 0, |
| "pop_LS: ls_stack underflow"); | |
| } | |
| const String& Parse_control::alias_method(const String& name) { | |
| return (main_alias && name==main_method_name)?*main_alias:name; | |
| } | } |