Slow Typescript problem reporting and intellisense #56142
Comments
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Perhaps you can try updating your TypeScript version to the latest release? |
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Switching to [email protected] seems to be solving the issue. But I need to use 5.2.2. Switching to TS 4.9.5
When I switched back to TS 5.2.2
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This is how I am surviving right now, Installed [email protected]
Added this in settings.json{
...
// "typescript.tsdk": "~/.volta/tools/shared/typescript/lib" // I am using volta on mac
"typescript.tsdk": "<npm_root>/typescript/lib" // Place your `npm root -g` here
} |
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@sagarpanchal Please try to share an example project which demonstrates the issue so we can investigate |
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@mjbvz Since, I created this issue,
I had a loop like this, that was taking around 3000-4000 ms, when I did import TsMorph, { ts } from "ts-morph"
for (const syntaxKind of [
ts.SyntaxKind.PropertyAssignment,
ts.SyntaxKind.ShorthandPropertyAssignment,
ts.SyntaxKind.VariableDeclaration,
ts.SyntaxKind.FunctionDeclaration,
]) {
// ... code
}I have changed it to this const array, and is not taking much time anymore import TsMorph, { ts } from "ts-morph"
for (const syntaxKind of [
ts.SyntaxKind.PropertyAssignment,
ts.SyntaxKind.ShorthandPropertyAssignment,
ts.SyntaxKind.VariableDeclaration,
ts.SyntaxKind.FunctionDeclaration,
] as const) { // <-- "as const" because SyntaxKind is a large enum
// ... code
}I am still not sure if it was the issue with vscode or the packages that I was using or the changes I have done after tsconfig.json {
"compilerOptions": {
"allowJs": true,
"allowSyntheticDefaultImports": true,
"allowUnreachableCode": true,
"declaration": true,
"esModuleInterop": true,
"forceConsistentCasingInFileNames": true,
"importHelpers": true,
"isolatedModules": true,
"lib": ["ESNext"],
"module": "CommonJS",
"moduleResolution": "Node",
"outDir": "dist",
"resolveJsonModule": true,
"rootDir": ".",
"skipLibCheck": true,
"strict": true,
"target": "ES2019",
"useDefineForClassFields": true
},
"include": ["scripts/**/*", "src/**/*"]
}package.json dependencies {
"dependencies": {
"@dagrejs/graphlib": "^2.1.13",
"@total-typescript/ts-reset": "^0.5.1",
"eslint-plugin-jest": "^27.4.2",
"fs-extra": "^11.1.1",
"ignore": "^5.2.4",
"jest": "^29.7.0",
"jsonc-parser": "^3.2.0",
"minimatch": "^9.0.3",
"serve": "^14.2.1",
"ts-jest": "^29.1.1",
"ts-morph": "^20.0.0",
"tslib": "^2.6.2",
"zod": "^3.22.4"
},
"devDependencies": {
"@types/fs-extra": "^11.0.2",
"@types/jest": "^29.5.5",
"@types/node": "^20.8.4",
"@typescript-eslint/eslint-plugin": "^6.7.5",
"@typescript-eslint/parser": "^6.7.5",
"eslint": "^8.51.0",
"eslint-config-prettier": "^9.0.0",
"eslint-import-resolver-typescript": "^3.6.1",
"eslint-plugin-import": "^2.28.1",
"eslint-plugin-prettier": "^5.0.1",
"execa": "npm:@esm2cjs/execa@^6.1.1-cjs.1",
"husky": "^8.0.3",
"lint-staged": "^14.0.1",
"prettier": "^3.0.3",
"shx": "^0.3.4",
"ts-node": "^10.9.1",
"type-fest": "^4.4.0",
"typescript": "~5.2.2"
},
} |
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@mjbvz I think the issue was the way I was using the SyntaxKind enum from typescript in array |
RyanCavanaugh
added
the
Needs More Info
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I'm also running into this after moving from v4 to v5, annoyingly I need v5 for a particular library that saves a ton of time for me so I'm still weighing up the tradeoff between having essentially zero intellisense or using ts-pattern. Fortunately, my codebase is open source so hopefully it's useful in debugging this issue: https://github.com/Southclaws/storyden I'm not sure what I can do in the meantime though, but I used to write C so the pain is familiar at least 😅 |
Type: Performance Issue
After some time typescript features slows down
VS Code version: Code 1.81.1 (Universal) (6c3e3dba23e8fadc360aed75ce363ba185c49794, 2023-08-09T22:20:33.924Z)
OS version: Darwin arm64 22.5.0
Modes:
System Info
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
metal: disabled_off
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: enabled
Process Info
Workspace Info
Extensions (63)
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