-
Notifications
You must be signed in to change notification settings - Fork 1
/
ast.h
371 lines (285 loc) · 7.92 KB
/
ast.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
#ifndef AST_H
#define AST_H
#include "types.h"
/* ---------------------NODE TYPES-------------------------- */
typedef enum Node_Type {
BASIC_NODE, // no special usage (for roots only)
// declarations
DECL_LIST_NODE,
DECL_NODE, // declaration
CONST_NODE, // constant
STMS_NODE, // statements
// statements
ARITHM_IF_NODE,
IF_NODE, // if statement
ELSIF_NODE, // else if branch
FOR_NODE, // for statement
WHILE_NODE, // while statement
ASSIGN_NODE, // assigment
SIMPLE_NODE, // continue, break and "main" return statements
INCR_NODE, // increment statement (non-expression one)
FUNC_CALL, // function call
// expressions
ARITHM_NODE, // arithmetic expression
BOOL_NODE, // boolean expression
REL_NODE, // relational expression
EQU_NODE, // equality expression
REF_NODE, // identifier
// functions
FUNC_DECL, // function declaration
RETURN_NODE, // return statement of functions
// other
LABEL_NODE,
LABELED_STM_NODE,
GOTO_NODE,
GOTO_CALC_NODE,
BRANCH_NODE,
BODY_NODE,
}Node_Type;
/* --------------------OPERATOR TYPES----------------------- */
typedef enum Arithm_op{
ADD, // + operator
SUB, // - operator
MUL, // * operator
DIV , // / operator
INC, // ++ operator
DEC, // -- operator
POW, // ** operator
}Arithm_op;
typedef enum Bool_op{
OR, // || operator
AND, // && operator
NOT // ! operator
}Bool_op;
typedef enum Rel_op{
GREATER, // > operator
LESS, // < operator
GREATER_EQUAL, // >= operator
LESS_EQUAL, // <= operator
EQUAL, // == operator
NOT_EQUAL // != operator
}Rel_op;
/*
typedef enum Equ_op{
EQUAL, // == operator
NOT_EQUAL // != operator
}Equ_op;
*/
/* -------------------HELP STRUCTURES----------------------- */
/* Types of values that we can have in constants */
typedef union Value{
int ival;
double fval;
char cval;
char *sval;
}Value;
/* -----------------------AST NODES------------------------- */
/* The basic node */
typedef struct AST_Node{
enum Node_Type type; // node type
struct AST_Node *left; // left child
struct AST_Node *right; // right child
}AST_Node;
/* Declarations */
typedef struct AST_Node_Decl_List{
enum Node_Type type; // node type
struct AST_Node *left;
struct AST_Node *right;
}AST_Node_Decl_List;
typedef struct AST_Node_Decl{
enum Node_Type type; // node type
// data type
int data_type;
// symbol table entries of the variables
Node* names;
}AST_Node_Decl;
typedef struct AST_Node_Const{
enum Node_Type type; // node type
// data type
int const_type;
// constant value
Value val;
}AST_Node_Const;
/* Statements */
typedef struct AST_Node_If{
enum Node_Type type; // node type
// condition
struct AST_Node *condition;
// if branch
struct AST_Node *branch;
}AST_Node_If;
typedef struct AST_Node_Elsif{
enum Node_Type type; // node type
// condition
struct AST_Node *condition;
// branch
struct AST_Node *elsif_branch;
}AST_Node_Elsif;
typedef struct AST_Node_For{
enum Node_Type type; // node type
// initialization
struct AST_Node *initialize;
// condition
struct AST_Node *condition;
// incrementation
struct AST_Node *increment;
// branch
struct AST_Node *for_branch;
}AST_Node_For;
typedef struct AST_Node_While{
enum Node_Type type; // node type
// condition
struct AST_Node *condition;
// branch
struct AST_Node *while_branch;
}AST_Node_While;
typedef struct AST_Node_Assign{
enum Node_Type type; // node type
// variable
struct AST_Node *assign_var;
// assignment value
struct AST_Node *assign_val;
}AST_Node_Assign;
typedef struct AST_Node_Simple{
enum Node_Type type; // node type
// continue, break or "main" return
int statement_type;
}AST_Node_Simple;
typedef struct AST_Node_Incr{
enum Node_Type type; // node type
// identifier
//list_t *entry;
// increment or decrement
int incr_type; // 0: increment, 1: decrement
// post- or prefix
int pf_type; // 0: postfix, 1: prefix
}AST_Node_Incr;
typedef struct AST_Node_Func_Call{
enum Node_Type type; // node type
// function identifier
//list_t *entry;
// call parameters
AST_Node **params;
}AST_Node_Func_Call;
/* Expressions */
typedef struct AST_Node_Arithm{
enum Node_Type type; // node type
// operator
enum Arithm_op op;
struct AST_Node *left; // left child
struct AST_Node *right; // right child
}AST_Node_Arithm;
typedef struct AST_Node_Bool{
enum Node_Type type; // node type
// operator
enum Bool_op op;
struct AST_Node *left; // left child
struct AST_Node *right; // right child
}AST_Node_Bool;
typedef struct AST_Node_Rel{
enum Node_Type type; // node type
// operator
enum Rel_op op;
struct AST_Node *left; // left child
struct AST_Node *right; // right child
}AST_Node_Rel;
typedef struct AST_Node_Ref{
enum Node_Type type; // node type
// symbol table entry
struct hashnode_s *entry;
// reference or not1
int ref; // 0: not reference, 1: reference
}AST_Node_Ref;
/*
typedef struct AST_Node_Equ{
enum Node_Type type; // node type
// operator
enum Equ_op op;
struct AST_Node *left; // left child
struct AST_Node *right; // right child
}AST_Node_Equ;
*/
/* Functions */
typedef struct AST_Node_Func_Decl{
enum Node_Type type; // node type
// return type
int ret_type;
// symbol table entry
//list_t *entry;
}AST_Node_Func_Decl;
typedef struct AST_Node_Return{
enum Node_Type type; // node type
// return type
int ret_type;
// return value
struct AST_Node *ret_val;
}AST_Node_Return;
typedef struct AST_Node_Label{
enum Node_Type type; // node type
// label value;
int label;
}AST_Node_Label;
typedef struct AST_Node_Labeled_Stm{
enum Node_Type type; // node type
struct AST_Node *label;
struct AST_Node *stm;
}AST_Node_Labeled_Stm;
typedef struct AST_Node_Arithm_If{
enum Node_Type type; // node type
struct AST_Node *expr;
struct AST_Node *label1;
struct AST_Node *label2;
struct AST_Node *label3;
}AST_Node_Arithm_If;
typedef struct AST_Node_Goto{
enum Node_Type type; // node type
struct AST_Node *label;
}AST_Node_Goto;
typedef struct AST_Node_Goto_Calc{
enum Node_Type type; // node type
struct AST_Node *label;
}AST_Node_Goto_Calc;
typedef struct AST_Node_Branch{
enum Node_Type type; // node type
struct AST_Node *expr;
struct AST_Node *body;
struct AST_Node *tail;
}AST_Node_Branch;
typedef struct AST_Node_Body{
enum Node_Type type; // node type
struct AST_Node *decl;
struct AST_Node *expr;
}AST_Node_Body;
typedef struct AST_Node_Stms{
enum Node_Type type; // node type
struct AST_Node *left;
struct AST_Node *right;
}AST_Node_Stms;
/* ------------------AST NODE MANAGEMENT-------------------- */
/* The basic node */
AST_Node *new_ast_node(Node_Type type, AST_Node *left, AST_Node *right); // simple nodes
/* Declarations */
AST_Node *new_ast_decl_node(DataType data_type, Node *names); // declaration
AST_Node *new_ast_const_node(int const_type, Value val); // constant
AST_Node *new_ast_decl_list_node(AST_Node *left, AST_Node *right);
/* Statements */
AST_Node *new_ast_assign_node(AST_Node *left, AST_Node *right);
AST_Node *new_ast_if_node(AST_Node *left, AST_Node *right);
/* Expressions */
AST_Node *new_ast_arithm_node(enum Arithm_op op, AST_Node *left, AST_Node *right);
AST_Node *new_ast_bool_node(enum Bool_op op, AST_Node *left, AST_Node *right);
AST_Node *new_ast_rel_node(enum Rel_op op, AST_Node *left, AST_Node *right);
//AST_Node *new_ast_equ_node(enum Equ_op op, AST_Node *left, AST_Node *right);
AST_Node *new_ast_ref_node(struct hashnode_s *entry);
/* Label */
AST_Node *new_ast_label_node(int label);
AST_Node *new_ast_labeled_stm_node(AST_Node *label, AST_Node *stm);
AST_Node *new_ast_arithm_if_node(AST_Node *EXPR, AST_Node *label1, AST_Node *label2, AST_Node *label3);
/* ... */
AST_Node *new_ast_goto_node(AST_Node *label);
AST_Node *new_ast_branch_node(AST_Node *expr, AST_Node *body, AST_Node *tail);
AST_Node *new_ast_body_node(AST_Node *decl, AST_Node *expr);
/**/
void ast_traversal(AST_Node *node);
AST_Node *new_ast_stms_node(AST_Node *left, AST_Node *right);
#endif