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-rw-r--r--editors/code/src/test/fixtures/rust-diagnostics/error/E0308.json33
-rw-r--r--editors/code/src/test/utils/diagnotics/rust.test.ts29
-rw-r--r--editors/code/src/utils/diagnostics/rust.ts9
3 files changed, 70 insertions, 1 deletions
diff --git a/editors/code/src/test/fixtures/rust-diagnostics/error/E0308.json b/editors/code/src/test/fixtures/rust-diagnostics/error/E0308.json
new file mode 100644
index 000000000..fb23824a3
--- /dev/null
+++ b/editors/code/src/test/fixtures/rust-diagnostics/error/E0308.json
@@ -0,0 +1,33 @@
1{
2 "message": "mismatched types",
3 "code": {
4 "code": "E0308",
5 "explanation": "\nThis error occurs when the compiler was unable to infer the concrete type of a\nvariable. It can occur for several cases, the most common of which is a\nmismatch in the expected type that the compiler inferred for a variable's\ninitializing expression, and the actual type explicitly assigned to the\nvariable.\n\nFor example:\n\n```compile_fail,E0308\nlet x: i32 = \"I am not a number!\";\n// ~~~ ~~~~~~~~~~~~~~~~~~~~\n// | |\n// | initializing expression;\n// | compiler infers type `&str`\n// |\n// type `i32` assigned to variable `x`\n```\n"
6 },
7 "level": "error",
8 "spans": [
9 {
10 "file_name": "runtime/compiler_support.rs",
11 "byte_start": 1589,
12 "byte_end": 1594,
13 "line_start": 48,
14 "line_end": 48,
15 "column_start": 65,
16 "column_end": 70,
17 "is_primary": true,
18 "text": [
19 {
20 "text": " let layout = alloc::Layout::from_size_align_unchecked(size, align);",
21 "highlight_start": 65,
22 "highlight_end": 70
23 }
24 ],
25 "label": "expected usize, found u32",
26 "suggested_replacement": null,
27 "suggestion_applicability": null,
28 "expansion": null
29 }
30 ],
31 "children": [],
32 "rendered": "error[E0308]: mismatched types\n --> runtime/compiler_support.rs:48:65\n |\n48 | let layout = alloc::Layout::from_size_align_unchecked(size, align);\n | ^^^^^ expected usize, found u32\n\n"
33}
diff --git a/editors/code/src/test/utils/diagnotics/rust.test.ts b/editors/code/src/test/utils/diagnotics/rust.test.ts
index b555a4819..7fb003fe2 100644
--- a/editors/code/src/test/utils/diagnotics/rust.test.ts
+++ b/editors/code/src/test/utils/diagnotics/rust.test.ts
@@ -108,7 +108,10 @@ describe('mapRustDiagnosticToVsCode', () => {
108 ); 108 );
109 assert.strictEqual( 109 assert.strictEqual(
110 diagnostic.message, 110 diagnostic.message,
111 'this function takes 2 parameters but 3 parameters were supplied' 111 [
112 'this function takes 2 parameters but 3 parameters were supplied',
113 'expected 2 parameters'
114 ].join('\n')
112 ); 115 );
113 assert.strictEqual(diagnostic.code, 'E0061'); 116 assert.strictEqual(diagnostic.code, 'E0061');
114 assert.strictEqual(diagnostic.source, 'rustc'); 117 assert.strictEqual(diagnostic.source, 'rustc');
@@ -170,4 +173,28 @@ describe('mapRustDiagnosticToVsCode', () => {
170 SuggestionApplicability.Unspecified 173 SuggestionApplicability.Unspecified
171 ); 174 );
172 }); 175 });
176
177 it('should map a mismatched type error', () => {
178 const { diagnostic, suggestedFixes } = mapFixtureToVsCode(
179 'error/E0308'
180 );
181
182 assert.strictEqual(
183 diagnostic.severity,
184 vscode.DiagnosticSeverity.Error
185 );
186 assert.strictEqual(
187 diagnostic.message,
188 ['mismatched types', 'expected usize, found u32'].join('\n')
189 );
190 assert.strictEqual(diagnostic.code, 'E0308');
191 assert.strictEqual(diagnostic.source, 'rustc');
192 assert.strictEqual(diagnostic.tags, undefined);
193
194 // No related information
195 assert.deepStrictEqual(diagnostic.relatedInformation, []);
196
197 // There are no suggested fixes
198 assert.strictEqual(suggestedFixes.length, 0);
199 });
173}); 200});
diff --git a/editors/code/src/utils/diagnostics/rust.ts b/editors/code/src/utils/diagnostics/rust.ts
index d16576eb1..c07be4559 100644
--- a/editors/code/src/utils/diagnostics/rust.ts
+++ b/editors/code/src/utils/diagnostics/rust.ts
@@ -182,6 +182,7 @@ export function mapRustDiagnosticToVsCode(
182 const secondarySpans = rd.spans.filter(s => !s.is_primary); 182 const secondarySpans = rd.spans.filter(s => !s.is_primary);
183 183
184 const severity = mapLevelToSeverity(rd.level); 184 const severity = mapLevelToSeverity(rd.level);
185 let primarySpanLabel = primarySpan.label;
185 186
186 const vd = new vscode.Diagnostic(location.range, rd.message, severity); 187 const vd = new vscode.Diagnostic(location.range, rd.message, severity);
187 188
@@ -220,9 +221,17 @@ export function mapRustDiagnosticToVsCode(
220 } 221 }
221 if (messageLine) { 222 if (messageLine) {
222 vd.message += `\n${messageLine}`; 223 vd.message += `\n${messageLine}`;
224
225 // These secondary messages usually duplicate the content of the
226 // primary span label.
227 primarySpanLabel = undefined;
223 } 228 }
224 } 229 }
225 230
231 if (primarySpanLabel) {
232 vd.message += `\n${primarySpanLabel}`;
233 }
234
226 if (isUnusedOrUnnecessary(rd)) { 235 if (isUnusedOrUnnecessary(rd)) {
227 vd.tags = [vscode.DiagnosticTag.Unnecessary]; 236 vd.tags = [vscode.DiagnosticTag.Unnecessary];
228 } 237 }