nolana 1.0.0

An extremely fast parser Molang parser.
Documentation
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
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
use oxc_allocator::Vec;

use crate::ast::*;

use walk_mut::*;

/// Syntax tree traversal.
pub trait VisitMut<'a>: Sized {
    #[inline]
    #[allow(unused_variables)]
    fn enter_node(&mut self, kind: AstKind) {}

    #[inline]
    #[allow(unused_variables)]
    fn leave_node(&mut self, kind: AstKind) {}

    #[inline]
    fn visit_program(&mut self, it: &mut Program<'a>) {
        walk_program(self, it);
    }

    #[inline]
    fn visit_expressions(&mut self, it: &mut Vec<'a, Expression<'a>>) {
        walk_expressions(self, it);
    }

    #[inline]
    fn visit_expression(&mut self, it: &mut Expression<'a>) {
        walk_expression(self, it);
    }

    #[inline]
    fn visit_identifier_reference(&mut self, it: &mut IdentifierReference<'a>) {
        walk_identifier_reference(self, it)
    }

    #[inline]
    fn visit_boolean_literal(&mut self, it: &mut BooleanLiteral) {
        walk_boolean_literal(self, it);
    }

    #[inline]
    fn visit_numeric_literal(&mut self, it: &mut NumericLiteral<'a>) {
        walk_numeric_literal(self, it);
    }

    #[inline]
    fn visit_string_literal(&mut self, it: &mut StringLiteral<'a>) {
        walk_string_literal(self, it);
    }

    #[inline]
    fn visit_variable_expression(&mut self, it: &mut VariableExpression<'a>) {
        walk_variable_expression(self, it);
    }

    #[inline]
    fn visit_variable_member(&mut self, it: &mut VariableMember<'a>) {
        walk_variable_member(self, it);
    }

    #[inline]
    fn visit_parenthesized_expression(&mut self, it: &mut ParenthesizedExpression<'a>) {
        walk_parenthesized_expression(self, it);
    }

    #[inline]
    fn visit_block_expression(&mut self, it: &mut BlockExpression<'a>) {
        walk_block_expression(self, it);
    }

    #[inline]
    fn visit_binary_expression(&mut self, it: &mut BinaryExpression<'a>) {
        walk_binary_expression(self, it);
    }

    #[inline]
    fn visit_unary_expression(&mut self, it: &mut UnaryExpression<'a>) {
        walk_unary_expression(self, it);
    }

    #[inline]
    fn visit_ternary_expression(&mut self, it: &mut TernaryExpression<'a>) {
        walk_ternary_expression(self, it);
    }

    #[inline]
    fn visit_conditional_expression(&mut self, it: &mut ConditionalExpression<'a>) {
        walk_conditional_expression(self, it);
    }

    #[inline]
    fn visit_assignment_expression(&mut self, it: &mut AssignmentExpression<'a>) {
        walk_assignment_expression(self, it);
    }

    #[inline]
    fn visit_resource_expression(&mut self, it: &mut ResourceExpression<'a>) {
        walk_resource_expression(self, it);
    }

    #[inline]
    fn visit_array_access_expression(&mut self, it: &mut ArrayAccessExpression<'a>) {
        walk_array_access_expression(self, it);
    }

    #[inline]
    fn visit_arrow_access_expression(&mut self, it: &mut ArrowAccessExpression<'a>) {
        walk_arrow_access_expression(self, it);
    }

    #[inline]
    fn visit_call_expression(&mut self, it: &mut CallExpression<'a>) {
        walk_call_expression(self, it);
    }

    #[inline]
    fn visit_loop_expression(&mut self, it: &mut LoopExpression<'a>) {
        walk_loop_expression(self, it);
    }

    #[inline]
    fn visit_for_each_expression(&mut self, it: &mut ForEachExpression<'a>) {
        walk_for_each_expression(self, it);
    }

    #[inline]
    fn visit_break(&mut self, it: &mut Break) {
        walk_break(self, it);
    }

    #[inline]
    fn visit_continue(&mut self, it: &mut Continue) {
        walk_continue(self, it);
    }

    #[inline]
    fn visit_this(&mut self, it: &mut This) {
        walk_this(self, it);
    }

    #[inline]
    fn visit_return(&mut self, it: &mut Return<'a>) {
        walk_return(self, it);
    }
}

pub mod walk_mut {
    use super::*;

    #[inline]
    pub fn walk_program<'a>(visitor: &mut impl VisitMut<'a>, it: &mut Program<'a>) {
        let kind = AstKind::Program;
        visitor.enter_node(kind);
        visitor.visit_expressions(&mut it.body);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_expressions<'a>(visitor: &mut impl VisitMut<'a>, it: &mut Vec<'a, Expression<'a>>) {
        for expr in it.iter_mut() {
            visitor.visit_expression(expr);
        }
    }

    #[inline]
    pub fn walk_expression<'a>(visitor: &mut impl VisitMut<'a>, it: &mut Expression<'a>) {
        match it {
            Expression::BooleanLiteral(it) => visitor.visit_boolean_literal(it),
            Expression::NumericLiteral(it) => visitor.visit_numeric_literal(it),
            Expression::StringLiteral(it) => visitor.visit_string_literal(it),
            Expression::Variable(it) => visitor.visit_variable_expression(it),
            Expression::Parenthesized(it) => visitor.visit_parenthesized_expression(it),
            Expression::Block(it) => visitor.visit_block_expression(it),
            Expression::Binary(it) => visitor.visit_binary_expression(it),
            Expression::Unary(it) => visitor.visit_unary_expression(it),
            Expression::Ternary(it) => visitor.visit_ternary_expression(it),
            Expression::Conditional(it) => visitor.visit_conditional_expression(it),
            Expression::Assignment(it) => visitor.visit_assignment_expression(it),
            Expression::Resource(it) => visitor.visit_resource_expression(it),
            Expression::ArrayAccess(it) => visitor.visit_array_access_expression(it),
            Expression::ArrowAccess(it) => visitor.visit_arrow_access_expression(it),
            Expression::Call(it) => visitor.visit_call_expression(it),
            Expression::Loop(it) => visitor.visit_loop_expression(it),
            Expression::ForEach(it) => visitor.visit_for_each_expression(it),
            Expression::Break(it) => visitor.visit_break(it),
            Expression::Continue(it) => visitor.visit_continue(it),
            Expression::This(it) => visitor.visit_this(it),
            Expression::Return(it) => visitor.visit_return(it),
        }
    }

    #[inline]
    #[allow(unused_variables)]
    pub fn walk_identifier_reference<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut IdentifierReference<'a>,
    ) {
        let kind = AstKind::IdentifierReference;
        visitor.enter_node(kind);
        visitor.leave_node(kind);
    }

    #[inline]
    #[allow(unused_variables)]
    pub fn walk_boolean_literal<'a>(visitor: &mut impl VisitMut<'a>, it: &mut BooleanLiteral) {
        let kind = AstKind::BooleanLiteral;
        visitor.enter_node(kind);
        visitor.leave_node(kind);
    }

    #[inline]
    #[allow(unused_variables)]
    pub fn walk_numeric_literal<'a>(visitor: &mut impl VisitMut<'a>, it: &mut NumericLiteral<'a>) {
        let kind = AstKind::NumericLiteral;
        visitor.enter_node(kind);
        visitor.leave_node(kind);
    }

    #[inline]
    #[allow(unused_variables)]
    pub fn walk_string_literal<'a>(visitor: &mut impl VisitMut<'a>, it: &mut StringLiteral<'a>) {
        let kind = AstKind::StringLiteral;
        visitor.enter_node(kind);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_variable_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut VariableExpression<'a>,
    ) {
        let kind = AstKind::VariableExpression;
        visitor.enter_node(kind);
        visitor.visit_variable_member(&mut it.member);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_variable_member<'a>(visitor: &mut impl VisitMut<'a>, it: &mut VariableMember<'a>) {
        let kind = AstKind::VariableMember;
        visitor.enter_node(kind);
        match it {
            VariableMember::Object {
                object, property, ..
            } => {
                visitor.visit_variable_member(object);
                visitor.visit_identifier_reference(property);
            }
            VariableMember::Property { property, .. } => {
                visitor.visit_identifier_reference(property);
            }
        }
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_parenthesized_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut ParenthesizedExpression<'a>,
    ) {
        let kind = AstKind::ParenthesizedExpression;
        visitor.enter_node(kind);
        match it {
            ParenthesizedExpression::Single { expression, .. } => {
                visitor.visit_expression(expression);
            }
            ParenthesizedExpression::Complex { expressions, .. } => {
                visitor.visit_expressions(expressions);
            }
        }
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_block_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut BlockExpression<'a>,
    ) {
        let kind = AstKind::BlockExpression;
        visitor.enter_node(kind);
        visitor.visit_expressions(&mut it.expressions);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_binary_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut BinaryExpression<'a>,
    ) {
        let kind = AstKind::BinaryExpression;
        visitor.enter_node(kind);
        visitor.visit_expression(&mut it.left);
        visitor.visit_expression(&mut it.right);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_unary_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut UnaryExpression<'a>,
    ) {
        let kind = AstKind::UnaryExpression;
        visitor.enter_node(kind);
        visitor.visit_expression(&mut it.argument);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_ternary_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut TernaryExpression<'a>,
    ) {
        let kind = AstKind::TernaryExpression;
        visitor.enter_node(kind);
        visitor.visit_expression(&mut it.test);
        visitor.visit_expression(&mut it.consequent);
        visitor.visit_expression(&mut it.alternate);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_conditional_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut ConditionalExpression<'a>,
    ) {
        let kind = AstKind::ConditionalExpression;
        visitor.enter_node(kind);
        visitor.visit_expression(&mut it.test);
        visitor.visit_expression(&mut it.consequent);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_assignment_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut AssignmentExpression<'a>,
    ) {
        let kind = AstKind::AssignmentExpression;
        visitor.enter_node(kind);
        visitor.visit_variable_expression(&mut it.left);
        visitor.visit_expression(&mut it.right);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_resource_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut ResourceExpression<'a>,
    ) {
        let kind = AstKind::ResourceExpression;
        visitor.enter_node(kind);
        visitor.visit_identifier_reference(&mut it.name);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_array_access_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut ArrayAccessExpression<'a>,
    ) {
        let kind = AstKind::ArrayAccessExpression;
        visitor.enter_node(kind);
        visitor.visit_identifier_reference(&mut it.name);
        visitor.visit_expression(&mut it.index);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_arrow_access_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut ArrowAccessExpression<'a>,
    ) {
        let kind = AstKind::ArrowAccessExpression;
        visitor.enter_node(kind);
        visitor.visit_expression(&mut it.left);
        visitor.visit_expression(&mut it.right);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_call_expression<'a>(visitor: &mut impl VisitMut<'a>, it: &mut CallExpression<'a>) {
        let kind = AstKind::CallExpression;
        visitor.enter_node(kind);
        visitor.visit_identifier_reference(&mut it.callee);
        if let Some(args) = &mut it.arguments {
            visitor.visit_expressions(args);
        }
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_loop_expression<'a>(visitor: &mut impl VisitMut<'a>, it: &mut LoopExpression<'a>) {
        let kind = AstKind::LoopExpression;
        visitor.enter_node(kind);
        visitor.visit_expression(&mut it.count);
        visitor.visit_block_expression(&mut it.expression);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_for_each_expression<'a>(
        visitor: &mut impl VisitMut<'a>,
        it: &mut ForEachExpression<'a>,
    ) {
        let kind = AstKind::ForEachExpression;
        visitor.enter_node(kind);
        visitor.visit_variable_expression(&mut it.variable);
        visitor.visit_expression(&mut it.array);
        visitor.visit_block_expression(&mut it.expression);
        visitor.leave_node(kind);
    }

    #[inline]
    #[allow(unused_variables)]
    pub fn walk_break<'a>(visitor: &mut impl VisitMut<'a>, it: &mut Break) {
        let kind = AstKind::Break;
        visitor.enter_node(kind);
        visitor.leave_node(kind);
    }

    #[inline]
    #[allow(unused_variables)]
    pub fn walk_continue<'a>(visitor: &mut impl VisitMut<'a>, it: &mut Continue) {
        let kind = AstKind::Continue;
        visitor.enter_node(kind);
        visitor.leave_node(kind);
    }

    #[inline]
    #[allow(unused_variables)]
    pub fn walk_this<'a>(visitor: &mut impl VisitMut<'a>, it: &mut This) {
        let kind = AstKind::This;
        visitor.enter_node(kind);
        visitor.leave_node(kind);
    }

    #[inline]
    pub fn walk_return<'a>(visitor: &mut impl VisitMut<'a>, it: &mut Return<'a>) {
        let kind = AstKind::Return;
        visitor.enter_node(kind);
        visitor.visit_expression(&mut it.argument);
        visitor.leave_node(kind);
    }
}