ast.h

   1 #ifndef AST_H
   2 #define AST_H
   3
   4 #include "base.h"
   5 #include "parser.h"
   6 #include "symbol_table.h"
   7
   8 struct AstNode {
   9     char *name;
  10     int kind;
  11     Type type;
  12     Value value;
  13     Symbol *symbol;
  14     int linenum;
  15     bool has_problem;
  16     struct AstNode* parent;
  17     struct AstNode* children;
  18     struct AstNode* sibling;
  19 };
  20
  21 typedef struct {
  22     void (*visit_program)(struct AstNode *);
  23     void (*visit_programdecl)(struct AstNode *);
  24     void (*visit_vardecl_list)(struct AstNode *);
  25     void (*visit_vardecl)(struct AstNode *);
  26     void (*visit_identifier_list)(struct AstNode *);
  27     void (*visit_identifier)(struct AstNode *);
  28     void (*visit_procfunc_list)(struct AstNode *);
  29     void (*visit_procedure)(struct AstNode *);
  30     void (*visit_function)(struct AstNode *);
  31     void (*visit_param_list)(struct AstNode *);
  32     void (*visit_parameter)(struct AstNode *);
  33     void (*visit_statement_list)(struct AstNode *);
  34     void (*visit_print_stmt)(struct AstNode *);
  35     void (*visit_assignment_stmt)(struct AstNode *);
  36     void (*visit_if_stmt)(struct AstNode *);
  37     void (*visit_while_stmt)(struct AstNode *);
  38     void (*visit_for_stmt)(struct AstNode *);
  39     void (*visit_rel_expr)(struct AstNode *);
  40     void (*visit_add_expr)(struct AstNode *);
  41     void (*visit_mul_expr)(struct AstNode *);
  42     void (*visit_notfactor)(struct AstNode *);
  43     void (*visit_call)(struct AstNode *);
  44     void (*visit_callparam_list)(struct AstNode *);
  45     void (*visit_literal)(struct AstNode *);
  46     void (*close_group)();
  47 } Visitor;
  48
  49 struct AstNode *ast_node_new(const char* name, int kind, int type,
  50                              int linenum, Symbol *symbol);
  51 void ast_node_destroy(struct AstNode *self);
  52
  53 void ast_node_add_child(struct AstNode *self, struct AstNode *child);
  54 void ast_node_add_sibling(struct AstNode *self, struct AstNode *sibling);
  55 void ast_node_accept(struct AstNode *self, Visitor *visitor);
  56
  57 #endif // AST_H