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, all rights reserved.
   7  */
   8
   9 #include "symbol.h"
  10
  11 enum statement_type {
  12         STMT_NONE,
  13         STMT_EXPRESSION,
  14         STMT_COMPOUND,
  15         STMT_IF,
  16         STMT_RETURN,
  17         STMT_CASE,
  18         STMT_SWITCH,
  19         STMT_ITERATOR,
  20         STMT_LABEL,
  21         STMT_GOTO,
  22         STMT_ASM,
  23 };
  24
  25 struct statement {
  26         enum statement_type type;
  27         struct position pos;
  28         struct statement *next;
  29         union {
  30                 struct label_arg {
  31                         struct symbol *label;
  32                         struct statement *label_statement;
  33                 };
  34                 struct expression *expression;
  35                 struct if_statement {
  36                         struct expression *if_conditional;
  37                         struct statement *if_true;
  38                         struct statement *if_false;
  39                 };
  40                 struct compound_struct {
  41                         struct symbol_list *syms;
  42                         struct statement_list *stmts;
  43                 };
  44                 struct labeled_struct {
  45                         struct symbol *label_identifier;
  46                         struct statement *label_statement;
  47                 };
  48                 struct case_struct {
  49                         struct expression *case_expression;
  50                         struct expression *case_to;
  51                         struct statement *case_statement;
  52                 };
  53                 struct switch_struct {
  54                         struct expression *switch_expression;
  55                         struct statement *switch_statement;
  56                         struct symbol *switch_break;
  57                 };
  58                 struct iterator_struct {
  59                         struct symbol *iterator_break;
  60                         struct symbol *iterator_continue;
  61                         struct statement  *iterator_pre_statement;
  62                         struct expression *iterator_pre_condition;
  63
  64                         struct statement  *iterator_statement;
  65
  66                         struct statement  *iterator_post_statement;
  67                         struct expression *iterator_post_condition;
  68                 };
  69                 struct goto_struct {
  70                         struct symbol *goto_label;
  71                         struct expression *goto_expression;
  72                 };
  73         };
  74 };
  75
  76 extern struct token *parse_expression(struct token *, struct expression **);
  77 extern struct token *statement_list(struct token *, struct statement_list **);
  78
  79 extern int show_statement(struct statement *);
  80 extern void show_statement_list(struct statement_list *, const char *);
  81 extern int show_expression(struct expression *);
  82 extern void translation_unit(struct token *, struct symbol_list **);
  83
  84 extern struct symbol *ctype_integer(unsigned int spec);
  85 extern struct symbol *ctype_fp(unsigned int spec);
  86
  87 extern int match_string_ident(struct ident *, const char *);
  88
  89 #endif /* PARSE_H */