wip

Author: zardoy

src/configurationType.ts

@@ -1,4 +1,4 @@
-import { ScriptElementKind, ScriptKind } from 'typescript/lib/tsserverlibrary'
+import { ScriptElementKind, ScriptKind, LanguageService } from 'typescript/lib/tsserverlibrary'
 
 type ReplaceRule = {
     /**
@@ -647,6 +647,21 @@ export type Configuration = {
               typeAlias: string
               interface: string
           }
+    customizeEnabledFeatures: {
+        [path: string]:
+            | 'disable-auto-invoked'
+            | 'disable-heavy-features'
+            | {
+                  /** @default true */
+                  [feature in keyof LanguageService]: boolean
+              }
+    }
+    // bigFilesLimitFeatures: 'do-not-limit' | 'limit-auto-invoking' | 'force-limit-all-features'
+    /**
+     * in kb default is 1.5mb
+     * @default 100000
+     */
+    // bigFilesThreshold: number
 }
 
 // scrapped using search editor. config: caseInsensitive, context lines: 0, regex: const fix\w+ = "[^ ]+"

typescript/src/decorateProxy.ts

@@ -1,3 +1,4 @@
+import { performance } from 'perf_hooks'
 import lodashGet from 'lodash.get'
 import { getCompletionsAtPosition, PrevCompletionMap, PrevCompletionsAdditionalData } from './completionsAtPosition'
 import { RequestInputTypes, TriggerCharacterCommand } from './ipcTypes'
@@ -115,6 +116,31 @@ export const decorateLanguageService = (
         }
     }
 
+    const readonlyModeDisableFeatures: Array<keyof ts.LanguageService> = [
+        'getOutliningSpans',
+        'getSyntacticDiagnostics',
+        'getSemanticDiagnostics',
+        'getSuggestionDiagnostics',
+        'provideInlayHints',
+        'getLinkedEditingRangeAtPosition',
+        'getApplicableRefactors',
+        'getCompletionsAtPosition',
+        'getDefinitionAndBoundSpan',
+        'getFormattingEditsAfterKeystroke',
+        'getDocumentHighlights',
+    ]
+    for (const feature of readonlyModeDisableFeatures) {
+        const orig = proxy[feature]
+        proxy[feature] = (...args) => {
+            const start = performance.now()
+            //@ts-expect-error
+            const result = orig(...args)
+            const time = performance.now() - start
+            if (time > 100) console.log(`[typescript-vscode-plugin perf warning] ${feature} took ${time}ms: ${args[0]} ${args[1]}`)
+            return result
+        }
+    }
+
     languageService[thisPluginMarker] = true
     return proxy
 }