parse.h

   1 #ifndef PARSE_H
   2 #define PARSE_H
   3 /*
   4  * Basic parsing data structures. Statements and symbols.
   5  *
   6  * Copyright (C) 2003 Transmeta Corp.
   7  *
   8  *  Licensed under the Open Software License version 1.1
   9  */
  10
  11 #include "symbol.h"
  12
  13 enum statement_type {
  14         STMT_NONE,
  15         STMT_EXPRESSION,
  16         STMT_COMPOUND,
  17         STMT_IF,
  18         STMT_RETURN,
  19         STMT_CASE,
  20         STMT_SWITCH,
  21         STMT_ITERATOR,
  22         STMT_LABEL,
  23         STMT_GOTO,
  24         STMT_ASM,
  25 };
  26
  27 struct statement {
  28         enum statement_type type;
  29         struct position pos;
  30         union {
  31                 struct /* label_arg */ {
  32                         struct symbol *label;
  33                         struct statement *label_statement;
  34                 };
  35                 struct expression *expression;
  36                 struct /* return_statement */ {
  37                         struct expression *ret_value;
  38                         struct symbol *ret_target;
  39                 };
  40                 struct /* if_statement */ {
  41                         struct expression *if_conditional;
  42                         struct statement *if_true;
  43                         struct statement *if_false;
  44                 };
  45                 struct /* compound_struct */ {
  46                         struct symbol_list *syms;
  47                         struct statement_list *stmts;
  48                         struct symbol *ret;
  49                 };
  50                 struct /* labeled_struct */ {
  51                         struct symbol *label_identifier;
  52                         struct statement *label_statement;
  53                 };
  54                 struct /* case_struct */ {
  55                         struct expression *case_expression;
  56                         struct expression *case_to;
  57                         struct statement *case_statement;
  58                         struct symbol *case_label;
  59                 };
  60                 struct /* switch_struct */ {
  61                         struct expression *switch_expression;
  62                         struct statement *switch_statement;
  63                         struct symbol *switch_break, *switch_case;
  64                 };
  65                 struct /* iterator_struct */ {
  66                         struct symbol *iterator_break;
  67                         struct symbol *iterator_continue;
  68                         struct symbol_list *iterator_syms;
  69                         struct statement  *iterator_pre_statement;
  70                         struct expression *iterator_pre_condition;
  71
  72                         struct statement  *iterator_statement;
  73
  74                         struct statement  *iterator_post_statement;
  75                         struct expression *iterator_post_condition;
  76                 };
  77                 struct /* goto_struct */ {
  78                         struct symbol *goto_label;
  79                         struct expression *goto_expression;
  80                 };
  81         };
  82 };
  83
  84 extern struct token *parse_expression(struct token *, struct expression **);
  85 extern struct token *statement_list(struct token *, struct statement_list **);
  86 extern struct symbol *label_symbol(struct token *token);
  87
  88 extern int show_statement(struct statement *);
  89 extern void show_statement_list(struct statement_list *, const char *);
  90 extern int show_expression(struct expression *);
  91 extern void translation_unit(struct token *, struct symbol_list **);
  92
  93 extern struct symbol *ctype_integer(unsigned int spec);
  94 extern struct symbol *ctype_fp(unsigned int spec);
  95
  96 extern int match_string_ident(struct ident *, const char *);
  97 extern void copy_statement(struct statement *src, struct statement *dst);
  98 extern int inline_function(struct expression *expr, struct symbol *sym);
  99
 100 #endif /* PARSE_H */