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