|
|
| version 1.66, 2002/09/20 10:22:12 | version 1.67.2.8.2.8, 2003/04/03 11:19:50 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: compiler support helper functions decls. | Parser: compiler support helper functions decls. |
| Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| Line 38 enum lexical_state { | Line 38 enum lexical_state { |
| LS_METHOD_ROUND, | LS_METHOD_ROUND, |
| LS_METHOD_AFTER | LS_METHOD_AFTER |
| }; | }; |
| struct Pos { | |
| uint line; | |
| uint col; | |
| //Pos(uint aline, uint acol): line(aline), col(acol) {} | |
| Pos(): line(0), col(0) {} | |
| void clear() { line=col=0; } | |
| operator bool() { return col!=0; } | |
| }; | |
| /// compiler status | /// compiler status |
| struct parse_control { | class Parse_control { |
| const String* main_alias; | |
| public: | |
| const String& alias_method(const String& name); | |
| //@{ | //@{ |
| /// @name input | /// @name input |
| Pool *pool; | Request& request; |
| Request *request; | VStateless_class* cclass; |
| VStateless_class *cclass; | const char* source; |
| #ifndef NO_STRING_ORIGIN | uint file_no; |
| const char *source; | Pos pos; |
| const char *file; | |
| #endif | |
| int line, col; | |
| //@} | //@} |
| //@{ | //@{ |
| /// @name state; initially | /// @name state; initially |
| bool trim_bof; | bool trim_bof; |
| int pending_state; ///< i=0 | int pending_state; ///< i=0 |
| String *string; ///< =new(pool) String(pool) | StringBody string; ///< lexical string accumulator |
| Pos string_start; | |
| #define MAX_LEXICAL_STATES 100 | #define MAX_LEXICAL_STATES 100 |
| enum lexical_state ls; ///< =LS_USER; | enum lexical_state ls; ///< =LS_USER; |
| Line 68 struct parse_control { | Line 80 struct parse_control { |
| /// output: filled input 'methods' and 'error' if any | /// output: filled input 'methods' and 'error' if any |
| char error[MAX_STRING]; | char error[MAX_STRING]; |
| Parse_control(Request& arequest, | |
| VStateless_class* aclass, | |
| const char* asource, const String* amain_alias, | |
| uint afile_no): | |
| request(arequest), // input | |
| // we were told the class to compile to? | |
| cclass(aclass), // until changed with @CLASS would consider operators loading | |
| source(asource), main_alias(amain_alias), | |
| file_no(afile_no), | |
| // initialize state | |
| trim_bof(true), | |
| pending_state(0), | |
| ls(LS_USER), | |
| ls_sp(0), | |
| in_call_value(false) { | |
| } | |
| }; | }; |
| /// New array // return empty array | /// New array // return empty array |
| inline Array/*<Operation>*/ *N(Pool& pool) { | inline ArrayOperation* N() { |
| return new(pool) Array/*<Operation>*/(pool); | return new ArrayOperation; |
| } | } |
| /// Assembler instruction // append ordinary instruction to ops | /// Assembler instruction // append ordinary instruction to ops |
| inline void O(Array/*<Operation>*/ *result, enum OPCODE code) { | inline void O(ArrayOperation& result, OPCODE code) { |
| Operation op; op.code=code; | result+=Operation(code); |
| *result+=op.cast; | |
| } | } |
| /// aPpend 'code_array' to 'result' | /// aPpend 'code_array' to 'result' |
| inline void P(Array/*<Operation>*/ *result, Array *code_array) { | inline void P(ArrayOperation& result, ArrayOperation& code_array) { |
| result->append_array(*code_array); | result.append(code_array); |
| } | } |
| /// aPpend part of 'code_array', starting from offset, to 'result' | /// aPpend part of 'code_array', starting from offset, to 'result' |
| inline void P(Array/*<Operation>*/ *result, Array *code_array, int offset) { | inline void P(ArrayOperation& result, ArrayOperation& code_array, int offset) { |
| result->append_array(*code_array, offset); | result.append(code_array, offset); |
| } | } |
| /// aPpend 'vstring' to 'result' | /// append cOde Array |
| void PV(Array/*<Operation>*/ *result, Value *value); | inline void OA(ArrayOperation& result, OPCODE code, ArrayOperation* code_array) { |
| result+=Operation(code); // append OP_CODE | |
| inline void OA(Array/*<Operation>*/ *result, OPCODE opcode, Array/*<Operation>*/ *code_array) { | result+=Operation(code_array); // append 'code_array' |
| // append OP_CODE | |
| Operation op; op.code=opcode; | |
| *result+=op.cast; | |
| // append 'vstring' | |
| *result+=code_array; | |
| } | } |
| /** | /** |
| Line 107 inline void OA(Array/*<Operation>*/ *res | Line 133 inline void OA(Array/*<Operation>*/ *res |
| - first: OP_VALUE instruction | - first: OP_VALUE instruction |
| - second op: string itself | - second op: string itself |
| */ | */ |
| inline Array *VL(Value *value) { | inline ArrayOperation* VL(Value* value, uint file_no, uint line, uint col) { |
| // empty ops array | // empty ops array |
| Array *result=N(value->pool()); | ArrayOperation* result=N(); |
| // append 'value' to 'result' | // append 'value' to 'result' |
| PV(result, value); | *result+=Operation(OP_VALUE, file_no, line, col); // append OP_VALUE |
| *result+=Operation(value); // append 'value' | |
| return result; | return result; |
| } | } |
| /// Literal Array to(2) Value @return Value from literal Array OP+Value | /// Literal Array to(2) Value @return Value from literal Array OP+Value |
| Value *LA2V(Array *literal_string_array, int offset=0); | Value* LA2V(ArrayOperation& literal_string_array, int offset=0); |
| /// Literal Array to(2) String @return String value from literal Array OP+String array | /// Literal Array to(2) String @return String value from literal Array OP+String array |
| inline const String *LA2S(Array *literal_string_array, int offset=0) { | inline const String* LA2S(ArrayOperation& literal_string_array, int offset=0) { |
| if(Value *value=LA2V(literal_string_array, offset)) | if(Value* value=LA2V(literal_string_array, offset)) |
| return value->get_string(); | return value->get_string(); |
| return 0; | return 0; |
| } | } |
| inline void change_string_literal_to_write_string_literal(Array *literal_string_array) { | inline void change_string_literal_to_write_string_literal(ArrayOperation& literal_string_array) { |
| Operation op; op.code=OP_STRING__WRITE; | literal_string_array.put(0, OP_STRING__WRITE); |
| literal_string_array->put(0, op.cast); | |
| } | } |
| void changetail_or_append(Array *opcodes, | |
| OPCODE find, bool with_argument, OPCODE replace, OPCODE notfound); | |
| void change_string_literal_to_double_literal(Array *literal_string_array); | void change_string_literal_to_double_literal(ArrayOperation& literal_string_array); |
| void change_string_literal_value(ArrayOperation& literal_string_array, const String& new_value); | |
| void changetail_or_append(ArrayOperation& opcodes, | |
| OPCODE find, bool with_argument, OPCODE replace, OPCODE notfound); | |
| void change_string_literal_value(Array *literal_string_array, const String& new_value); | |
| void push_LS(parse_control& pc, lexical_state new_state); | void push_LS(Parse_control& pc, lexical_state new_state); |
| void pop_LS(parse_control& pc); | void pop_LS(Parse_control& pc); |
| #endif | #endif |