parse.h

   1 #ifndef PARSE_H
   2 #define PARSE_H
   3 /*
   4  * Basic parsing data structures. Statements and symbols.
   5  *
   6  * Copyright (C) 2003 Linus Torvalds, 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_BREAK,
  18         STMT_CONTINUE,
  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 token *token;
  30         struct statement *next;
  31         union {
  32                 struct label_arg {
  33                         struct token *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 token *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                 };
  55                 struct switch_struct {
  56                         struct expression *switch_expression;
  57                         struct statement *switch_statement;
  58                 };
  59                 struct iterator_struct {
  60                         struct statement  *iterator_pre_statement;
  61                         struct expression *iterator_pre_condition;
  62
  63                         struct statement  *iterator_statement;
  64
  65                         struct statement  *iterator_post_statement;
  66                         struct expression *iterator_post_condition;
  67                 };
  68                 struct goto_struct {
  69                         struct token *goto_label;
  70                         struct expression *goto_expression;
  71                 };
  72         };
  73 };
  74
  75 extern struct token *parse_expression(struct token *, struct expression **);
  76 extern struct token *statement_list(struct token *, struct statement_list **);
  77
  78 extern void show_statement(struct statement *);
  79 extern void show_statement_list(struct statement_list *, const char *);
  80 extern void show_expression(struct expression *);
  81 extern void translation_unit(struct token *, struct symbol_list **);
  82
  83 extern struct symbol *ctype_integer(unsigned int spec);
  84 extern struct symbol *ctype_fp(unsigned int spec);
  85
  86 #endif /* PARSE_H */