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| version 1.35, 2001/03/25 08:52:36 | version 1.67.2.8.2.2, 2003/03/21 13:42:30 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: compiler support helper functions decls. | Parser: compiler support helper functions decls. |
| Copyright (c) 2001 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: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | |
| */ | */ |
| #ifndef COMPILE_TOOLS | #ifndef COMPILE_TOOLS |
| #define COMPILE_TOOLS | #define COMPILE_TOOLS |
| #include "code.h" | static const char* IDENT_COMPILE_TOOLS_H="$Date$"; |
| #include "pa_opcode.h" | |
| #include "pa_types.h" | #include "pa_types.h" |
| #include "pa_vstring.h" | #include "pa_vstring.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| extern "C" { | |
| #include "cord.h" | |
| } | |
| enum lexical_state { | enum lexical_state { |
| LS_USER, | LS_USER, LS_NAME_SQUARE_PART, |
| LS_COMMENT, | LS_USER_COMMENT, |
| LS_DEF_NAME, | LS_DEF_NAME, |
| LS_DEF_PARAMS, | LS_DEF_PARAMS, |
| LS_DEF_LOCALS, | LS_DEF_LOCALS, |
| LS_DEF_COMMENT, | LS_DEF_COMMENT, |
| LS_DEF_SPECIAL_BODY, | LS_DEF_SPECIAL_BODY, |
| LS_EXPRESSION_STRING, | LS_EXPRESSION_STRING_QUOTED, |
| LS_EXPRESSION_VAR_NAME, | LS_EXPRESSION_STRING_APOSTROFED, |
| LS_VAR_NAME_SIMPLE, | LS_EXPRESSION_VAR_NAME_WITH_COLON, LS_EXPRESSION_VAR_NAME_WITHOUT_COLON, |
| LS_EXPRESSION_COMMENT, | |
| LS_VAR_NAME_SIMPLE_WITH_COLON, LS_VAR_NAME_SIMPLE_WITHOUT_COLON, | |
| LS_VAR_NAME_CURLY, | LS_VAR_NAME_CURLY, |
| LS_VAR_ROUND, | LS_VAR_ROUND, |
| LS_VAR_SQUARE, | LS_VAR_SQUARE, |
| Line 37 enum lexical_state { | Line 42 enum lexical_state { |
| LS_METHOD_ROUND, | LS_METHOD_ROUND, |
| LS_METHOD_AFTER | LS_METHOD_AFTER |
| }; | }; |
| /// compiler status | |
| struct parse_control { | struct parse_control { |
| // input | //@{ |
| Pool *pool; | /// @name input |
| Request *request; | Request& request; |
| VStateless_class *cclass; | VStateless_class* cclass; |
| #ifndef NO_CSTRING_ORIGIN | const char* source; |
| const char *source; | const char* file; |
| const char *file; | |
| int line, col; | int line, col; |
| #endif | //@} |
| // state | //@{ |
| int pending_state; //=0 | /// @name state; initially |
| String *string; //=new(pool) String(pool) | bool trim_bof; |
| int pending_state; ///< i=0 | |
| StringBody string; ///< lexical string accumulator | |
| #define MAX_LEXICAL_STATES 100 | #define MAX_LEXICAL_STATES 100 |
| enum lexical_state ls; //=LS_USER; | enum lexical_state ls; ///< =LS_USER; |
| int sp; //=0 | int ls_sp; ///< =0 |
| enum lexical_state stack[MAX_LEXICAL_STATES]; | enum lexical_state ls_stack[MAX_LEXICAL_STATES]; |
| int brackets_nestages[MAX_LEXICAL_STATES]; | int brackets_nestages[MAX_LEXICAL_STATES]; ///< brackets nestage on each state |
| bool in_call_value; | |
| //@} | |
| // 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 char* afile): | |
| request(arequest), // input | |
| // we were told the class to compile to? | |
| cclass(aclass), // until changed with @CLASS would consider operators loading | |
| source(asource), | |
| file(afile), | |
| line(0), col(0), | |
| // initialise 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' | |
| // Argument Eval_expression // append eval_expression to ops | inline void P(ArrayOperation& result, ArrayOperation& code_array) { |
| inline void AE(Array/*<Operation>*/ *result, char *eval_expression) { | result.append(code_array); |
| *result+=eval_expression; | } |
| } | /// aPpend part of 'code_array', starting from offset, to 'result' |
| inline void P(ArrayOperation& result, ArrayOperation& code_array, int offset) { | |
| // aPpend 'code_array' to 'result' | result.append(code_array, offset); |
| inline void P(Array/*<Operation>*/ *result, Array *code_array) { | } |
| result->append_array(*code_array); | |
| } | /// aPpend 'vstring' to 'result' |
| // aPpend part of 'code_array', starting from offset, to 'result' | inline void PV(ArrayOperation& result, Value* value) { |
| inline void P(Array/*<Operation>*/ *result, Array *code_array, int offset) { | result+=Operation(OP_VALUE); // append OP_VALUE |
| result->append_array(*code_array, offset); | result+=Operation(value); // append 'value' |
| } | } |
| // aPpend 'vstring' to 'result' | |
| void PV(Array/*<Operation>*/ *result, VString *vstring); | /// append cOde Array |
| // aPpend 'simple Code_Array' to result | inline void OA(ArrayOperation& result, OPCODE code, ArrayOperation* code_array) { |
| void PCA(Array/*<Operation>*/ *result, Array/*<Operation>*/ *code_array); | result+=Operation(code); // append OP_CODE |
| // aPpend 'expression Code_Array' to result | result+=Operation(code_array); // append 'code_array' |
| void PEA(Array/*<Operation>*/ *result, Array/*<Operation>*/ *code_array); | } |
| // Value Literal // returns array with | /** |
| // first: OP_VALUE instruction | Value Literal // returns array with |
| // second op: string itself | - first: OP_VALUE instruction |
| Array *VL(Value *value); | - second op: string itself |
| // Literal Array to(2) String // return string value from literal array OP+string array | */ |
| const String *SLA2S(Array *literal_string_array, int offset=0); | inline ArrayOperation* VL(Value* value) { |
| // empty ops array | |
| ArrayOperation* result=N(); | |
| // append 'value' to 'result' | |
| PV(*result, value); | |
| return result; | |
| } | |
| /// Literal Array to(2) Value @return Value from literal Array OP+Value | |
| Value* LA2V(ArrayOperation& literal_string_array, int offset=0); | |
| /// Literal Array to(2) String @return String value from literal Array OP+String array | |
| inline const String* LA2S(ArrayOperation& literal_string_array, int offset=0) { | |
| if(Value* value=LA2V(literal_string_array, offset)) | |
| return value->get_string(); | |
| return 0; | |
| } | |
| inline void change_string_literal_to_write_string_literal(ArrayOperation& literal_string_array) { | |
| literal_string_array[0].code=OP_STRING__WRITE; | |
| } | |
| 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_to_double_literal(Array *literal_string_array); | |
| void change_string_literal_to_write_string_literal(Array *literal_string_array); | |
| 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); |