Added parsing of t-prefix

Author: mattpocock

package.json

@@ -13,7 +13,8 @@
     "extension:build": "turbo run vscode:build",
     "format": "prettier --write \"**/*.{ts,tsx,md}\"",
     "prepare": "husky install",
-    "release": "turbo run publish:vsce publish:ovsx && node ./scripts/tag-extension.js"
+    "release": "turbo run publish:vsce publish:ovsx && node ./scripts/tag-extension.js",
+    "parser:dev": "turbo run dev --filter *parser"
   },
   "devDependencies": {
     "husky": ">=6",

packages/parser/src/tips.ts

@@ -270,6 +270,20 @@ export const allTips = [
       };
     },
   ),
+  createInlineTip(
+    't-prefix-in-generic-arguments',
+    z.object({ loc: SourceLocationSchema, name: z.string().startsWith('T') }),
+    ({ parse, push }) => {
+      return {
+        TSTypeParameter: (path) => {
+          safeParse(() => {
+            const node = parse(path.node);
+            push(node.loc);
+          });
+        },
+      };
+    },
+  ),
   createInlineTip(
     'bigint',
     z.object({

packages/parser/src/tips/genericSlotsInFunctions.test.ts

@@ -11,6 +11,8 @@ it('Should work', () => {
 
   expect(tips).toEqual([
     'generic-slots-in-functions',
+    't-prefix-in-generic-arguments',
     'generic-slots-in-functions',
+    't-prefix-in-generic-arguments',
   ]);
 });

packages/parser/src/tips/inlineTips.test.ts

@@ -4,13 +4,23 @@ import { getTipsFromFile } from '../getTipsFromFile';
 it('Should figure out as const', () => {
   const fileContents = `
   const yeah = '' as const;
-  `;
+`;
 
   const tips = getTipsFromFile(fileContents).map((tip) => tip.type);
 
   expect(tips).toEqual(['as-const']);
 });
 
+it('t-prefix-in-generic-arguments', () => {
+  const fileContents = `
+  type Yeah<T> = T;
+  `;
+
+  const tips = getTipsFromFile(fileContents).map((tip) => tip.type);
+
+  expect(tips).toContain('t-prefix-in-generic-arguments');
+});
+
 it('Union type', () => {
   const fileContents = `
   type Yeah = string | number;

packages/parser/src/tips/interfaceWithGenerics.test.ts

@@ -12,7 +12,9 @@ it('Should work', () => {
   expect(tips).toEqual([
     'interface-declaration',
     'interface-with-generics',
+    't-prefix-in-generic-arguments',
     'type-alias-declaration',
     'type-alias-with-generics',
+    't-prefix-in-generic-arguments',
   ]);
 });

packages/parser/src/tips/interfaceWithMultipleGenerics.test.ts

@@ -13,8 +13,12 @@ it('Should work', () => {
     'interface-declaration',
     'interface-with-generics',
     'interface-with-multiple-generics',
+    't-prefix-in-generic-arguments',
+    't-prefix-in-generic-arguments',
     'type-alias-declaration',
     'type-alias-with-generics',
     'type-alias-with-multiple-generics',
+    't-prefix-in-generic-arguments',
+    't-prefix-in-generic-arguments',
   ]);
 });

packages/parser/src/tips/kInKeyof.test.ts

@@ -13,6 +13,7 @@ it('Should work', () => {
   expect(tips).toEqual([
     'type-alias-declaration',
     'type-alias-with-generics',
+    't-prefix-in-generic-arguments',
     'mapped-type',
     'k-in-keyof',
     'keyof',

packages/parser/src/tips/mappedType.test.ts

@@ -13,6 +13,7 @@ it('Should work', () => {
   expect(tips).toEqual([
     'type-alias-declaration',
     'type-alias-with-generics',
+    't-prefix-in-generic-arguments',
     'mapped-type',
   ]);
 });

packages/parser/src/tips/multipleGenericSlotsInFunctions.test.ts

@@ -12,7 +12,11 @@ it('Should work', () => {
   expect(tips).toEqual([
     'generic-slots-in-functions',
     'multiple-generic-slots-in-functions',
+    't-prefix-in-generic-arguments',
+    't-prefix-in-generic-arguments',
     'generic-slots-in-functions',
     'multiple-generic-slots-in-functions',
+    't-prefix-in-generic-arguments',
+    't-prefix-in-generic-arguments',
   ]);
 });