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
|
package lsp
import (
"strings"
"testing"
"github.com/grindlemire/go-tui/internal/tuigen"
)
const resolveCoverageSrc = `package test
import (
"fmt"
f "strings"
)
var topLevel = 1
templ List(items []string) {
<div class="flex-col">
for _, item := range items {
<span ref={rows} key={item}>{item}</span>
<li ref={cells}>cell</li>
}
if len(items) > 0 {
<span ref={first}>yes</span>
} else {
<span>empty</span>
}
<p>after</p>
</div>
}
templ App() {
<div>
@List(names)
</div>
}
func helper(s string, m map[string]int) string {
return f.ToUpper(s)
}
`
func lineCharOf(t *testing.T, src string, line int, needle string) (int, int) {
t.Helper()
lines := strings.Split(src, "\n")
if line >= len(lines) {
t.Fatalf("line %d out of range", line)
}
idx := strings.Index(lines[line], needle)
if idx < 0 {
t.Fatalf("needle %q not found on line %d (%q)", needle, line, lines[line])
}
return line, idx
}
func TestResolveFromAST_Coverage(t *testing.T) {
type tc struct {
line int
needle string
charOffset int
wantKind NodeKind
wantWord string
wantImport string
wantGoExpr bool
inForLoop bool
inIfStmt bool
}
tests := map[string]tc{
"import path": {
line: 3, needle: `"fmt"`, charOffset: 2,
wantKind: NodeKindImportPath, wantImport: "fmt",
},
"aliased import alias": {
line: 4, needle: `f "strings"`, charOffset: 0,
wantKind: NodeKindImportPath, wantImport: "strings",
},
"top level decl": {
line: 7, needle: "topLevel", charOffset: 0,
wantKind: NodeKindGoDecl,
},
"component decl param type": {
line: 9, needle: "[]string", charOffset: 2,
wantKind: NodeKindComponent,
},
"element inside for loop": {
line: 12, needle: "span", charOffset: 1,
wantKind: NodeKindElement, inForLoop: true,
},
"element in if then branch": {
line: 16, needle: "span", charOffset: 1,
wantKind: NodeKindElement, inIfStmt: true,
},
"element in else branch": {
line: 18, needle: "span", charOffset: 1,
wantKind: NodeKindElement, inIfStmt: true,
},
"element after loop and if": {
line: 20, needle: "<p>", charOffset: 1,
wantKind: NodeKindElement,
},
"go expr column out of range falls through": {
line: 12, needle: "</span>", charOffset: 2,
wantKind: NodeKindGoExpr,
},
"component call argument area": {
line: 26, needle: "names", charOffset: 1,
wantKind: NodeKindGoExpr, wantGoExpr: true,
},
"func param name": {
line: 30, needle: "s string", charOffset: 0,
wantKind: NodeKindParameter,
},
"func param with nested map type": {
line: 30, needle: "m map[string]int", charOffset: 0,
wantKind: NodeKindParameter,
},
"func body": {
line: 31, needle: "ToUpper", charOffset: 0,
wantKind: NodeKindFunction, wantGoExpr: true,
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
doc := parseTestDoc(resolveCoverageSrc)
if doc.AST == nil {
t.Fatal("fixture failed to parse")
}
line, char := lineCharOf(t, resolveCoverageSrc, tt.line, tt.needle)
ctx := ResolveCursorContext(doc, Position{Line: line, Character: char + tt.charOffset})
if ctx.NodeKind != tt.wantKind {
t.Errorf("NodeKind = %s, want %s", ctx.NodeKind, tt.wantKind)
}
if tt.wantWord != "" && ctx.Word != tt.wantWord {
t.Errorf("Word = %q, want %q", ctx.Word, tt.wantWord)
}
if tt.wantImport != "" && ctx.ImportPath != tt.wantImport {
t.Errorf("ImportPath = %q, want %q", ctx.ImportPath, tt.wantImport)
}
if tt.wantGoExpr && !ctx.InGoExpr {
t.Error("expected InGoExpr to be true")
}
if tt.inForLoop && ctx.Scope.ForLoop == nil {
t.Error("expected Scope.ForLoop to be set")
}
if tt.inIfStmt && ctx.Scope.IfStmt == nil {
t.Error("expected Scope.IfStmt to be set")
}
})
}
}
func TestResolveFromAST_CursorAfterComponentEnd(t *testing.T) {
doc := parseTestDoc(resolveCoverageSrc)
if doc.AST == nil {
t.Fatal("fixture failed to parse")
}
ctx := ResolveCursorContext(doc, Position{Line: 29, Character: 0})
if ctx.NodeKind != NodeKindUnknown {
t.Errorf("NodeKind = %s, want Unknown", ctx.NodeKind)
}
if ctx.Scope.Component != nil {
t.Errorf("Scope.Component = %v, want nil", ctx.Scope.Component.Name)
}
}
func TestCollectScope_RefKinds(t *testing.T) {
doc := parseTestDoc(resolveCoverageSrc)
if doc.AST == nil {
t.Fatal("fixture failed to parse")
}
line, char := lineCharOf(t, resolveCoverageSrc, 20, "<p>")
ctx := ResolveCursorContext(doc, Position{Line: line, Character: char + 1})
refs := map[string]tuigen.RefInfo{}
for _, r := range ctx.Scope.Refs {
refs[r.Name] = r
}
rows, ok := refs["rows"]
if !ok {
t.Fatal("missing ref 'rows'")
}
if !rows.InLoop {
t.Error("rows: expected InLoop")
}
if rows.RefKind != tuigen.RefMap {
t.Errorf("rows: RefKind = %v, want RefMap", rows.RefKind)
}
if rows.KeyExpr != "item" {
t.Errorf("rows: KeyExpr = %q, want %q", rows.KeyExpr, "item")
}
cells, ok := refs["cells"]
if !ok {
t.Fatal("missing ref 'cells'")
}
if cells.RefKind != tuigen.RefList {
t.Errorf("cells: RefKind = %v, want RefList", cells.RefKind)
}
first, ok := refs["first"]
if !ok {
t.Fatal("missing ref 'first'")
}
if !first.InConditional {
t.Error("first: expected InConditional")
}
if first.RefKind != tuigen.RefSingle {
t.Errorf("first: RefKind = %v, want RefSingle", first.RefKind)
}
}
func TestResolveInComponentCall_Children(t *testing.T) {
src := `package test
templ Card(title string) {
<div>{title}</div>
}
templ App() {
<div>
@Card("t") {
<span>inner</span>
}
</div>
}
`
doc := parseTestDoc(src)
if doc.AST == nil {
t.Fatal("fixture failed to parse")
}
line, char := lineCharOf(t, src, 9, "span")
ctx := ResolveCursorContext(doc, Position{Line: line, Character: char + 1})
if ctx.NodeKind != NodeKindElement {
t.Errorf("NodeKind = %s, want Element", ctx.NodeKind)
}
}
func TestResolveHelpers_NilGuards(t *testing.T) {
ctx := &CursorContext{Scope: &Scope{}, Document: &Document{}}
if resolveInElement(ctx, nil, 1, 1) {
t.Error("resolveInElement(nil) = true, want false")
}
if resolveInForLoop(ctx, nil, 1, 1) {
t.Error("resolveInForLoop(nil) = true, want false")
}
if resolveInIfStmt(ctx, nil, 1, 1) {
t.Error("resolveInIfStmt(nil) = true, want false")
}
if resolveInLetBinding(ctx, nil, 1, 1) {
t.Error("resolveInLetBinding(nil) = true, want false")
}
if resolveInComponentCall(ctx, nil, 1, 1) {
t.Error("resolveInComponentCall(nil) = true, want false")
}
if got := classifyGoExpr(nil); got != NodeKindGoExpr {
t.Errorf("classifyGoExpr(nil) = %s, want GoExpr", got)
}
if got := classifyGoCode(nil); got != NodeKindGoExpr {
t.Errorf("classifyGoCode(nil) = %s, want GoExpr", got)
}
}
func TestClassifyGoCode(t *testing.T) {
type tc struct {
code string
want NodeKind
}
tests := map[string]tc{
"state declaration": {code: "count := tui.NewState(0)", want: NodeKindStateDecl},
"state set": {code: "count.Set(1)", want: NodeKindStateAccess},
"state get": {code: "x := count.Get()", want: NodeKindStateAccess},
"plain code": {code: "y := 1", want: NodeKindGoExpr},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
got := classifyGoCode(&tuigen.GoCode{Code: tt.code})
if got != tt.want {
t.Errorf("classifyGoCode(%q) = %s, want %s", tt.code, got, tt.want)
}
})
}
}
func TestResolveInNode_GoCodeColumnOutOfRange(t *testing.T) {
ctx := &CursorContext{Scope: &Scope{}, Document: &Document{}}
code := &tuigen.GoCode{
Code: "x := 1",
Position: tuigen.Position{Line: 1, Column: 2},
}
if resolveInNode(ctx, code, 1, 50) {
t.Error("expected out-of-range column to not resolve")
}
}
func TestResolveInLetBinding_NoElementNoNameHit(t *testing.T) {
ctx := &CursorContext{Scope: &Scope{}, Document: &Document{}}
let := &tuigen.LetBinding{
Name: "label",
Position: tuigen.Position{Line: 1, Column: 1},
}
if resolveInLetBinding(ctx, let, 2, 1) {
t.Error("expected no match for let binding without element")
}
}
func TestClassifyFromText_NoAST(t *testing.T) {
type tc struct {
content string
needle string
want NodeKind
}
tests := map[string]tc{
"keyword": {
content: "for x := range items",
needle: "for",
want: NodeKindKeyword,
},
"element tag": {
content: `<div class="p-1">`,
needle: "div",
want: NodeKindElement,
},
"component call prefix": {
content: "@Header",
needle: "@Header",
want: NodeKindComponentCall,
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
doc := &Document{URI: "file:///t.gsx", Content: tt.content}
idx := strings.Index(tt.content, tt.needle)
if idx < 0 {
t.Fatalf("needle not found")
}
ctx := ResolveCursorContext(doc, Position{Line: 0, Character: idx + 1})
if ctx.NodeKind != tt.want {
t.Errorf("NodeKind = %s, want %s", ctx.NodeKind, tt.want)
}
})
}
}
func TestIsOffsetInGoExpr_ClosedBraces(t *testing.T) {
content := "{x} y"
if isOffsetInGoExpr(content, 4) {
t.Error("offset after balanced braces should not be in Go expr")
}
content2 := "{a{b}c}"
if !isOffsetInGoExpr(content2, 5) {
t.Error("offset inside braces should be in Go expr")
}
}
func TestFindComponentEndLine_Unbalanced(t *testing.T) {
content := "templ X() {\n<div>"
comp := &tuigen.Component{Position: tuigen.Position{Line: 1, Column: 1}}
if got := findComponentEndLine(content, comp); got != 1 {
t.Errorf("findComponentEndLine = %d, want 1 (last line)", got)
}
}
func TestFindFuncParamAtColumn(t *testing.T) {
type tc struct {
code string
col int
want string
}
tests := map[string]tc{
"not a func": {code: "var x = 1", col: 1, want: ""},
"no paren": {code: "func f", col: 1, want: ""},
"unbalanced": {code: "func f(a int", col: 8, want: ""},
"first param": {code: "func f(a int, b string) {}", col: 8, want: "a"},
"second param": {code: "func f(a int, b string) {}", col: 15, want: "b"},
"nested types": {code: "func g(m map[string]int, fn func(int) bool) {}", col: 26, want: "fn"},
"miss": {code: "func f(a int) {}", col: 11, want: ""},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
fn := &tuigen.GoFunc{
Code: tt.code,
Position: tuigen.Position{Line: 1, Column: 1},
}
got := findFuncParamAtColumn(fn, tt.col)
if got != tt.want {
t.Errorf("findFuncParamAtColumn(%q, %d) = %q, want %q", tt.code, tt.col, got, tt.want)
}
})
}
}
|