feat(plugin-typescript): add TS core logic (#932)

Author: BioPhoton

packages/plugin-typescript/mocks/fixtures/basic-setup/exclude/utils.ts

@@ -0,0 +1,3 @@
+export function test() {
+  return 'test';
+}

packages/plugin-typescript/mocks/fixtures/basic-setup/src/0-no-diagnostics/constants.ts

@@ -0,0 +1 @@
+export const TEST = 'test';

packages/plugin-typescript/mocks/fixtures/basic-setup/src/1-syntax-errors/ts-1136-property-assignment-expected.ts

@@ -0,0 +1,2 @@
+const a = { ; // Error: TS1136: Property assignment expected
+

packages/plugin-typescript/mocks/fixtures/basic-setup/src/2-semantic-errors/module-resolution/ts-2307-module-not-fount.ts

@@ -0,0 +1,2 @@
+// 2307 - Cannot find module.
+import { nonExistentModule } from './non-existent';

packages/plugin-typescript/mocks/fixtures/basic-setup/src/2-semantic-errors/strict/no-implicit-this/ts-2683-not-implicit-this.ts

@@ -0,0 +1,4 @@
+// 2683 - NoImplicitThis: 'this' implicitly has type 'any'.
+function noImplicitThisTS2683() {
+  console.log(this.value); // Error 2683
+}

packages/plugin-typescript/mocks/fixtures/basic-setup/src/2-semantic-errors/strict/strict-function-types/ts-2349-not-callable.ts

@@ -0,0 +1,3 @@
+// 2349 - Cannot call a value that is not callable.
+const notCallable = 42;
+notCallable();

packages/plugin-typescript/mocks/fixtures/basic-setup/src/2-semantic-errors/strict/strict-null-checks/ts-2531-strict-null-checks.ts

@@ -0,0 +1,2 @@
+// 2531 - StrictNullChecks: Object is possibly 'null'.
+const strictNullChecksTS2531: string = null;

packages/plugin-typescript/mocks/fixtures/basic-setup/src/2-semantic-errors/ts-2307-cannot-find-module.ts

@@ -0,0 +1 @@
+const value: NonExistentType = 42; // Compiler fails to resolve the type reference

packages/plugin-typescript/mocks/fixtures/basic-setup/src/4-languale-service/ts-4114-incorrect-modifier.ts

@@ -0,0 +1,6 @@
+class Standalone {
+  override method() { // Error: TS4114 - 'override' modifier can only be used in a class derived from a base class.
+    console.log("Standalone method");
+  }
+}
+const s = Standalone;

packages/plugin-typescript/mocks/fixtures/basic-setup/src/6-configuration-errors/ts-6059-file-is-not-under-root-dir.ts

@@ -0,0 +1,3 @@
+import { test } from '../../exclude/utils';
+
+// TS6059:: File 'exclude/utils.ts' is not under 'rootDir' '.../configuration-errors'. 'rootDir' is expected to contain all source files.