Annotation of parser3/src/main/compile_tools.h, revision 1.67.2.8.2.10
1.32 paf 1: /** @file
1.33 paf 2: Parser: compiler support helper functions decls.
3:
1.67.2.6 paf 4: Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.58 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1 paf 6: */
7:
8: #ifndef COMPILE_TOOLS
9: #define COMPILE_TOOLS
1.62 paf 10:
1.67.2.8.2.10! (paf 11:: static const char* IDENT_COMPILE_TOOLS_H="$Date: 2003/04/03 12:40:53 $";
1.1 paf 12:
1.39 paf 13: #include "pa_opcode.h"
1.1 paf 14: #include "pa_types.h"
1.10 paf 15: #include "pa_vstring.h"
1.14 paf 16: #include "pa_request.h"
1.67.2.8.2.2 paf 17:
1.1 paf 18: enum lexical_state {
1.48 parser 19: LS_USER, LS_NAME_SQUARE_PART,
1.65 paf 20: LS_USER_COMMENT,
1.7 paf 21: LS_DEF_NAME,
22: LS_DEF_PARAMS,
23: LS_DEF_LOCALS,
24: LS_DEF_COMMENT,
1.18 paf 25: LS_DEF_SPECIAL_BODY,
1.42 parser 26: LS_EXPRESSION_STRING_QUOTED,
27: LS_EXPRESSION_STRING_APOSTROFED,
1.48 parser 28: LS_EXPRESSION_VAR_NAME_WITH_COLON, LS_EXPRESSION_VAR_NAME_WITHOUT_COLON,
1.65 paf 29: LS_EXPRESSION_COMMENT,
1.48 parser 30: LS_VAR_NAME_SIMPLE_WITH_COLON, LS_VAR_NAME_SIMPLE_WITHOUT_COLON,
1.1 paf 31: LS_VAR_NAME_CURLY,
1.22 paf 32: LS_VAR_ROUND,
1.18 paf 33: LS_VAR_SQUARE,
1.1 paf 34: LS_VAR_CURLY,
35: LS_METHOD_NAME,
1.18 paf 36: LS_METHOD_SQUARE,
1.1 paf 37: LS_METHOD_CURLY,
1.22 paf 38: LS_METHOD_ROUND,
1.1 paf 39: LS_METHOD_AFTER
40: };
1.67.2.8.2.7 paf 41:
42: struct Pos {
43: uint line;
44: uint col;
45: //Pos(uint aline, uint acol): line(aline), col(acol) {}
46: Pos(): line(0), col(0) {}
47:
48: void clear() { line=col=0; }
49: operator bool() { return col!=0; }
50: };
51:
1.38 paf 52: /// compiler status
1.67.2.8.2.8 paf 53: class Parse_control {
54: const String* main_alias;
1.67.2.8.2.9 paf 55: uint last_line_end_col;
1.67.2.8.2.8 paf 56: public:
57: const String& alias_method(const String& name);
1.38 paf 58: //@{
59: /// @name input
1.67.2.8.2.2 paf 60: Request& request;
1.67.2.7 paf 61: VStateless_class* cclass;
1.67.2.6 paf 62: const char* source;
1.67.2.8.2.6 paf 63: uint file_no;
1.67.2.8.2.7 paf 64: Pos pos;
1.38 paf 65: //@}
66: //@{
67: /// @name state; initially
1.45 parser 68: bool trim_bof;
1.38 paf 69: int pending_state; ///< i=0
1.67.2.8.2.2 paf 70: StringBody string; ///< lexical string accumulator
1.67.2.8.2.7 paf 71: Pos string_start;
1.1 paf 72:
73: #define MAX_LEXICAL_STATES 100
1.38 paf 74: enum lexical_state ls; ///< =LS_USER;
1.54 paf 75: int ls_sp; ///< =0
76: enum lexical_state ls_stack[MAX_LEXICAL_STATES];
1.38 paf 77: int brackets_nestages[MAX_LEXICAL_STATES]; ///< brackets nestage on each state
1.46 parser 78:
1.56 paf 79: bool in_call_value;
1.38 paf 80: //@}
1.1 paf 81:
1.36 paf 82: /// output: filled input 'methods' and 'error' if any
1.5 paf 83: char error[MAX_STRING];
1.67.2.8.2.2 paf 84:
1.67.2.8.2.7 paf 85: Parse_control(Request& arequest,
1.67.2.8.2.2 paf 86: VStateless_class* aclass,
1.67.2.8.2.8 paf 87: const char* asource, const String* amain_alias,
1.67.2.8.2.6 paf 88: uint afile_no):
1.67.2.8.2.2 paf 89: request(arequest), // input
90:
91: // we were told the class to compile to?
92: cclass(aclass), // until changed with @CLASS would consider operators loading
93:
1.67.2.8.2.8 paf 94: source(asource), main_alias(amain_alias),
1.67.2.8.2.2 paf 95:
1.67.2.8.2.6 paf 96: file_no(afile_no),
1.67.2.8.2.9 paf 97: last_line_end_col(0),
1.67.2.8.2.2 paf 98:
1.67.2.8.2.7 paf 99: // initialize state
1.67.2.8.2.2 paf 100: trim_bof(true),
101: pending_state(0),
102: ls(LS_USER),
103: ls_sp(0),
1.67.2.8.2.9 paf 104: in_call_value(false) {}
105:
106: void pos_next_line() {
107: pos.line++;
108: last_line_end_col=pos.col;
109: pos.col=0;
110: }
111: void pos_prev_c() {
112: if(pos.col==0) {
113: --pos.line; pos.col=last_line_end_col;
114: } else
115: --pos.col;
116: }
117: void ungetc() {
118: source--;
119: pos_prev_c();
1.67.2.8.2.2 paf 120: }
1.1 paf 121: };
122:
1.36 paf 123: /// New array // return empty array
1.67.2.8.2.2 paf 124: inline ArrayOperation* N() {
125: return new ArrayOperation;
1.3 paf 126: }
127:
1.67.2.8.2.10! (paf 128:: /// Assembler instruction // append ordinary instruction to ops
1.67.2.3 paf 129: inline void O(ArrayOperation& result, OPCODE code) {
130: result+=Operation(code);
1.3 paf 131: }
132:
1.36 paf 133: /// aPpend 'code_array' to 'result'
1.67.2.4 paf 134: inline void P(ArrayOperation& result, ArrayOperation& code_array) {
135: result.append(code_array);
1.11 paf 136: }
1.36 paf 137: /// aPpend part of 'code_array', starting from offset, to 'result'
1.67.2.4 paf 138: inline void P(ArrayOperation& result, ArrayOperation& code_array, int offset) {
139: result.append(code_array, offset);
1.3 paf 140: }
1.53 paf 141:
1.67.2.2 paf 142: /// append cOde Array
1.67.2.8.2.2 paf 143: inline void OA(ArrayOperation& result, OPCODE code, ArrayOperation* code_array) {
1.67.2.3 paf 144: result+=Operation(code); // append OP_CODE
145: result+=Operation(code_array); // append 'code_array'
1.61 paf 146: }
1.1 paf 147:
1.36 paf 148: /**
149: Value Literal // returns array with
1.67.2.8.2.10! (paf 150:: - first op: OP_VALUE instruction
! 151:: - second op: origin (debug information)
! 152:: - third op: string itself
1.36 paf 153: */
1.67.2.8.2.6 paf 154: inline ArrayOperation* VL(Value* value, uint file_no, uint line, uint col) {
1.61 paf 155: // empty ops array
1.67.2.8.2.10! (paf 156:: ArrayOperation& result=*N();
1.61 paf 157:
158: // append 'value' to 'result'
1.67.2.8.2.10! (paf 159:: result+=Operation(OP_VALUE);
! 160:: result+=Operation(file_no, line, col); // append origin
! 161:: result+=Operation(value); // append 'value'
1.61 paf 162:
1.67.2.8.2.10! (paf 163:: return &result;
1.61 paf 164: }
165:
1.67.2.8.2.10! (paf 166:: /// Literal Array to(2) Value @return Value from literal Array OP+origin+Value
1.67.2.8.2.2 paf 167: Value* LA2V(ArrayOperation& literal_string_array, int offset=0);
1.67.2.8.2.10! (paf 168:: /// Literal Array to(2) String @return String value from literal Array OP+origin+String array
1.67.2.8.2.2 paf 169: inline const String* LA2S(ArrayOperation& literal_string_array, int offset=0) {
170: if(Value* value=LA2V(literal_string_array, offset))
171: return value->get_string();
1.67.2.8.2.1 paf 172: return 0;
1.36 paf 173: }
1.61 paf 174:
1.67.2.3 paf 175: inline void change_string_literal_to_write_string_literal(ArrayOperation& literal_string_array) {
1.67.2.8.2.4 paf 176: literal_string_array.put(0, OP_STRING__WRITE);
1.61 paf 177: }
178:
179:
1.67.2.3 paf 180: void change_string_literal_to_double_literal(ArrayOperation& literal_string_array);
181:
1.67.2.8.2.1 paf 182: void change_string_literal_value(ArrayOperation& literal_string_array, const String& new_value);
1.67.2.3 paf 183:
184: void changetail_or_append(ArrayOperation& opcodes,
185: OPCODE find, bool with_argument, OPCODE replace, OPCODE notfound);
1.64 paf 186:
1.1 paf 187:
1.67.2.8.2.7 paf 188: void push_LS(Parse_control& pc, lexical_state new_state);
189: void pop_LS(Parse_control& pc);
1.1 paf 190:
191: #endif
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