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feat(diagnostics): cap diagnostic output with truncation notice

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Add a limit parameter to formatDiagnostics (default 20 for explicit
lsp_diagnostics calls, 10 for auto-check after edit/write). When
truncated, a summary line indicates how many more diagnostics exist.
This commit is contained in:
Evan Reichard
2026-05-02 20:13:05 -04:00
parent 04fd520438
commit 99525ad0ee
1 changed files with 9 additions and 3 deletions
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12
index.ts
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@@ -194,7 +194,7 @@ function formatDocumentSymbols(result: unknown): string {
} }
// Format Diagnostics - Turn diagnostic messages into readable text. // Format Diagnostics - Turn diagnostic messages into readable text.
function formatDiagnostics(result: unknown): string { function formatDiagnostics(result: unknown, limit = 20): string {
if ( if (
!result || !result ||
typeof result !== "object" || typeof result !== "object" ||
@@ -212,7 +212,8 @@ function formatDiagnostics(result: unknown): string {
4: "Hint", 4: "Hint",
}; };
return diags const shown = diags.slice(0, limit);
const formatted = shown
.map((d: any, i: number) => { .map((d: any, i: number) => {
const sev = severityNames[d.severity] ?? `sev:${d.severity}`; const sev = severityNames[d.severity] ?? `sev:${d.severity}`;
const range = d.range; const range = d.range;
@@ -222,6 +223,11 @@ function formatDiagnostics(result: unknown): string {
return `${i + 1}. [${sev}] ${d.message} (line ${line}, col ${col})`; return `${i + 1}. [${sev}] ${d.message} (line ${line}, col ${col})`;
}) })
.join("\n"); .join("\n");
if (diags.length > limit) {
return `${formatted}\n\n... and ${diags.length - limit} more diagnostics (showing first ${limit})`;
}
return formatted;
} }
// Is Expected Error - Returns true if the error is an expected condition // Is Expected Error - Returns true if the error is an expected condition
@@ -505,7 +511,7 @@ export default function (pi: ExtensionAPI) {
try { try {
// Run LSP diagnostics // Run LSP diagnostics
const result = await runDiagnostics(absolutePath); const result = await runDiagnostics(absolutePath);
const formatted = formatDiagnostics(result); const formatted = formatDiagnostics(result, 10);
// Only send a message if there are actual diagnostics // Only send a message if there are actual diagnostics
if (formatted !== "(no diagnostics)") { if (formatted !== "(no diagnostics)") {