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Annotation of parser3/src/main/compile_tools.h, revision 1.42

1.32      paf         1: /** @file
1.33      paf         2:        Parser: compiler support helper functions decls.
                      3: 
1.26      paf         4:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.33      paf         5: 
1.27      paf         6:        Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.26      paf         7: 
1.42    ! parser      8:        $Id: compile_tools.h,v 1.41 2001/06/28 07:33:38 parser Exp $
1.1       paf         9: */
                     10: 
                     11: #ifndef COMPILE_TOOLS
                     12: #define COMPILE_TOOLS
                     13: 
1.40      parser     14: #include "pa_config_includes.h"
1.39      paf        15: #include "pa_opcode.h"
1.1       paf        16: #include "pa_types.h"
1.10      paf        17: #include "pa_vstring.h"
1.14      paf        18: #include "pa_request.h"
1.1       paf        19: 
                     20: enum lexical_state {
                     21:        LS_USER,
1.34      paf        22:        LS_COMMENT,
1.7       paf        23:        LS_DEF_NAME,
                     24:        LS_DEF_PARAMS,
                     25:        LS_DEF_LOCALS,
                     26:        LS_DEF_COMMENT,
1.18      paf        27:        LS_DEF_SPECIAL_BODY,
1.42    ! parser     28:        LS_EXPRESSION_STRING_QUOTED,
        !            29:        LS_EXPRESSION_STRING_APOSTROFED,
1.22      paf        30:        LS_EXPRESSION_VAR_NAME,
1.1       paf        31:        LS_VAR_NAME_SIMPLE,
                     32:        LS_VAR_NAME_CURLY,
1.41      parser     33:        LS_VAR_NAME_NO_COLON,
1.22      paf        34:        LS_VAR_ROUND,
1.18      paf        35:        LS_VAR_SQUARE,
1.1       paf        36:        LS_VAR_CURLY,
                     37:        LS_METHOD_NAME,
1.18      paf        38:        LS_METHOD_SQUARE,
1.1       paf        39:        LS_METHOD_CURLY,
1.22      paf        40:        LS_METHOD_ROUND,
1.1       paf        41:        LS_METHOD_AFTER
                     42: };
1.38      paf        43: /// compiler status
1.1       paf        44: struct parse_control {
1.38      paf        45:        //@{
                     46:        /// @name input
1.3       paf        47:        Pool *pool;
1.14      paf        48:        Request *request;
1.30      paf        49:        VStateless_class *cclass;
1.1       paf        50: #ifndef NO_CSTRING_ORIGIN
1.29      paf        51:        const char *source;
                     52:        const char *file;
1.4       paf        53:        int line, col;
1.1       paf        54: #endif
1.38      paf        55:        //@}
                     56:        //@{
                     57:        /// @name state; initially
                     58:        int pending_state; ///< i=0
                     59:        String *string; ///< =new(pool) String(pool)
1.1       paf        60:        
                     61: #define MAX_LEXICAL_STATES 100
1.38      paf        62:        enum lexical_state ls; ///< =LS_USER;
                     63:        int sp; ///< =0
1.1       paf        64:        enum lexical_state stack[MAX_LEXICAL_STATES];
1.38      paf        65:        int brackets_nestages[MAX_LEXICAL_STATES]; ///< brackets nestage on each state
                     66:        //@}
1.1       paf        67:        
1.36      paf        68:        /// output: filled input 'methods' and 'error' if any
1.5       paf        69:        char error[MAX_STRING];
1.1       paf        70: };
                     71: 
1.36      paf        72: /// New array // return empty array
1.28      paf        73: inline Array/*<Operation>*/ *N(Pool& pool) {
                     74:        return new(pool) Array/*<Operation>*/(pool);
1.3       paf        75: }
                     76: 
1.36      paf        77: /// Assembler instruction // append ordinary instruction to ops
1.28      paf        78: inline void O(Array/*<Operation>*/ *result, enum OPCODE code) {
1.3       paf        79:        Operation op; op.code=code;
                     80:        *result+=op.cast;
                     81: }
                     82: 
1.36      paf        83: /// Argument Eval_expression // append eval_expression to ops
1.28      paf        84: inline void AE(Array/*<Operation>*/ *result, char *eval_expression) {
1.3       paf        85:        *result+=eval_expression;
                     86: }
                     87: 
1.36      paf        88: /// aPpend 'code_array' to 'result'
1.28      paf        89: inline void P(Array/*<Operation>*/ *result, Array *code_array) {
1.3       paf        90:        result->append_array(*code_array);
1.11      paf        91: }
1.36      paf        92: /// aPpend part of 'code_array', starting from offset, to 'result'
1.28      paf        93: inline void P(Array/*<Operation>*/ *result, Array *code_array, int offset) {
1.11      paf        94:        result->append_array(*code_array, offset);
1.3       paf        95: }
1.36      paf        96: /// aPpend 'vstring' to 'result'
1.28      paf        97: void PV(Array/*<Operation>*/ *result, VString *vstring);
1.36      paf        98: /// aPpend 'simple Code_Array' to result
1.28      paf        99: void PCA(Array/*<Operation>*/ *result, Array/*<Operation>*/ *code_array);
1.36      paf       100: /// aPpend 'expression Code_Array' to result
1.31      paf       101: void PEA(Array/*<Operation>*/ *result, Array/*<Operation>*/ *code_array);
1.1       paf       102: 
1.36      paf       103: /**
                    104:        Value Literal // returns array with 
                    105:        - first: OP_VALUE instruction
                    106:        - second op: string itself
                    107: */
1.21      paf       108: Array *VL(Value *value);
1.36      paf       109: /// Literal Array to(2) Value @return Value from literal Array OP+Value
                    110: Value *LA2V(Array *literal_string_array, int offset=0);
                    111: /// Literal Array to(2) String  @return String value from literal Array OP+String array
                    112: inline const String *LA2S(Array *literal_string_array, int offset=0) {
1.37      paf       113:        if(Value *value=LA2V(literal_string_array, offset))
                    114:                return value->get_string();
                    115:        return 0;
1.36      paf       116: }
1.19      paf       117: void change_string_literal_to_double_literal(Array *literal_string_array);
1.25      paf       118: void change_string_literal_to_write_string_literal(Array *literal_string_array);
1.1       paf       119: 
1.35      paf       120: void push_LS(parse_control& pc, lexical_state new_state);
                    121: void pop_LS(parse_control& pc);
1.1       paf       122: 
                    123: #endif