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         struct statement *next;
  31         union {
  32                 struct label_arg {
  33                         struct symbol *label;
  34                         struct statement *label_statement;
  35                 };
  36                 struct expression *expression;
  37                 struct if_statement {
  38                         struct expression *if_conditional;
  39                         struct statement *if_true;
  40                         struct statement *if_false;
  41                 };
  42                 struct compound_struct {
  43                         struct symbol_list *syms;
  44                         struct statement_list *stmts;
  45                 };
  46                 struct labeled_struct {
  47                         struct symbol *label_identifier;
  48                         struct statement *label_statement;
  49                 };
  50                 struct case_struct {
  51                         struct expression *case_expression;
  52                         struct expression *case_to;
  53                         struct statement *case_statement;
  54                         struct symbol *case_label;
  55                 };
  56                 struct switch_struct {
  57                         struct expression *switch_expression;
  58                         struct statement *switch_statement;
  59                         struct symbol *switch_break, *switch_case;
  60                 };
  61                 struct iterator_struct {
  62                         struct symbol *iterator_break;
  63                         struct symbol *iterator_continue;
  64                         struct symbol_list *iterator_syms;
  65                         struct statement  *iterator_pre_statement;
  66                         struct expression *iterator_pre_condition;
  67
  68                         struct statement  *iterator_statement;
  69
  70                         struct statement  *iterator_post_statement;
  71                         struct expression *iterator_post_condition;
  72                 };
  73                 struct goto_struct {
  74                         struct symbol *goto_label;
  75                         struct expression *goto_expression;
  76                 };
  77         };
  78 };
  79
  80 extern struct token *parse_expression(struct token *, struct expression **);
  81 extern struct token *statement_list(struct token *, struct statement_list **);
  82
  83 extern int show_statement(struct statement *);
  84 extern void show_statement_list(struct statement_list *, const char *);
  85 extern int show_expression(struct expression *);
  86 extern void translation_unit(struct token *, struct symbol_list **);
  87
  88 extern struct symbol *ctype_integer(unsigned int spec);
  89 extern struct symbol *ctype_fp(unsigned int spec);
  90
  91 extern int match_string_ident(struct ident *, const char *);
  92
  93 #endif /* PARSE_H */