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
#![allow(dead_code)] // Symbol table infrastructure for future features
use std::collections::HashMap;
use tower_lsp::lsp_types::{Location, Position, Range, Url};
use windjammer::parser::{Item, Program};
/// Symbol definition in the code
#[derive(Debug, Clone)]
pub struct SymbolDefinition {
pub name: String,
pub kind: SymbolKind,
pub location: Location,
}
#[derive(Debug, Clone, PartialEq)]
pub enum SymbolKind {
Function,
Struct,
Enum,
Trait,
Impl,
Const,
Static,
}
/// Symbol reference (usage) in the code
#[derive(Debug, Clone)]
pub struct SymbolReference {
pub name: String,
pub location: Location,
}
/// Symbol table for tracking definitions and references
#[derive(Clone)]
pub struct SymbolTable {
symbols: HashMap<String, SymbolDefinition>,
references: HashMap<String, Vec<SymbolReference>>,
}
impl SymbolTable {
pub fn new() -> Self {
Self {
symbols: HashMap::new(),
references: HashMap::new(),
}
}
/// Build symbol table from a parsed program
pub fn build_from_program(&mut self, program: &Program, uri: &Url) {
self.symbols.clear();
self.references.clear();
for (idx, item) in program.items.iter().enumerate() {
match item {
Item::Function {
decl: func,
location: _,
} => {
// TODO: Get actual line number from AST
// For now, use item index as a heuristic
let location = Location {
uri: uri.clone(),
range: Range {
start: Position {
line: idx as u32,
character: 0,
},
end: Position {
line: idx as u32,
character: 100,
},
},
};
self.symbols.insert(
func.name.clone(),
SymbolDefinition {
name: func.name.clone(),
kind: SymbolKind::Function,
location,
},
);
}
Item::Struct {
decl: struct_decl,
location: _,
} => {
let location = Location {
uri: uri.clone(),
range: Range {
start: Position {
line: idx as u32,
character: 0,
},
end: Position {
line: idx as u32,
character: 100,
},
},
};
self.symbols.insert(
struct_decl.name.clone(),
SymbolDefinition {
name: struct_decl.name.clone(),
kind: SymbolKind::Struct,
location,
},
);
}
Item::Enum {
decl: enum_decl,
location: _,
} => {
let location = Location {
uri: uri.clone(),
range: Range {
start: Position {
line: idx as u32,
character: 0,
},
end: Position {
line: idx as u32,
character: 100,
},
},
};
self.symbols.insert(
enum_decl.name.clone(),
SymbolDefinition {
name: enum_decl.name.clone(),
kind: SymbolKind::Enum,
location,
},
);
// Also add enum variants
for variant in &enum_decl.variants {
let variant_location = Location {
uri: uri.clone(),
range: Range {
start: Position {
line: idx as u32,
character: 0,
},
end: Position {
line: idx as u32,
character: 100,
},
},
};
self.symbols.insert(
variant.name.clone(),
SymbolDefinition {
name: variant.name.clone(),
kind: SymbolKind::Enum,
location: variant_location,
},
);
}
}
Item::Trait {
decl: trait_decl,
location: _,
} => {
let location = Location {
uri: uri.clone(),
range: Range {
start: Position {
line: idx as u32,
character: 0,
},
end: Position {
line: idx as u32,
character: 100,
},
},
};
self.symbols.insert(
trait_decl.name.clone(),
SymbolDefinition {
name: trait_decl.name.clone(),
kind: SymbolKind::Trait,
location,
},
);
}
Item::Impl {
block: impl_block,
location: _,
} => {
// For impl blocks, we could track methods
// TODO: Add method tracking
let _ = impl_block;
}
Item::Const { name, .. } => {
let location = Location {
uri: uri.clone(),
range: Range {
start: Position {
line: idx as u32,
character: 0,
},
end: Position {
line: idx as u32,
character: 100,
},
},
};
self.symbols.insert(
name.clone(),
SymbolDefinition {
name: name.clone(),
kind: SymbolKind::Const,
location,
},
);
}
Item::Static { name, .. } => {
let location = Location {
uri: uri.clone(),
range: Range {
start: Position {
line: idx as u32,
character: 0,
},
end: Position {
line: idx as u32,
character: 100,
},
},
};
self.symbols.insert(
name.clone(),
SymbolDefinition {
name: name.clone(),
kind: SymbolKind::Static,
location,
},
);
}
_ => {}
}
}
}
/// Find a symbol by name
pub fn find_symbol(&self, name: &str) -> Option<&SymbolDefinition> {
self.symbols.get(name)
}
/// Get all symbols
pub fn all_symbols(&self) -> Vec<&SymbolDefinition> {
self.symbols.values().collect()
}
/// Find symbol at a given position
/// TODO: Implement proper position-based lookup when we have line tracking
pub fn find_symbol_at_position(&self, _position: Position) -> Option<&SymbolDefinition> {
// Placeholder: return None for now
// This would need proper AST position tracking
None
}
/// Find all references to a symbol by name
pub fn find_references(&self, name: &str) -> Vec<&SymbolReference> {
self.references
.get(name)
.map(|refs| refs.iter().collect())
.unwrap_or_default()
}
/// Build references from source code
/// This is a simple text-based search for now
/// TODO: Use proper AST walking for accurate reference detection
pub fn build_references_from_source(&mut self, source: &str, uri: &Url) {
self.references.clear();
// Get all symbol names
let symbol_names: Vec<String> = self.symbols.keys().cloned().collect();
// Search for each symbol in the source code
for symbol_name in &symbol_names {
for (line_num, line) in source.lines().enumerate() {
// Find all occurrences of the symbol name in this line
let mut start = 0;
while let Some(pos) = line[start..].find(symbol_name.as_str()) {
let actual_pos = start + pos;
// Simple word boundary check
let before_ok = actual_pos == 0
|| !line
.chars()
.nth(actual_pos - 1)
.unwrap_or(' ')
.is_alphanumeric();
let after_ok = actual_pos + symbol_name.len() >= line.len()
|| !line
.chars()
.nth(actual_pos + symbol_name.len())
.unwrap_or(' ')
.is_alphanumeric();
if before_ok && after_ok {
let reference = SymbolReference {
name: symbol_name.clone(),
location: Location {
uri: uri.clone(),
range: Range {
start: Position {
line: line_num as u32,
character: actual_pos as u32,
},
end: Position {
line: line_num as u32,
character: (actual_pos + symbol_name.len()) as u32,
},
},
},
};
self.references
.entry(symbol_name.clone())
.or_default()
.push(reference);
}
start = actual_pos + 1;
}
}
}
}
}
impl Default for SymbolTable {
fn default() -> Self {
Self::new()
}
}