fix(lambda-nodejs): include tsc paths in precompilation

packages/@aws-cdk-testing/framework-integ/test/aws-lambda-nodejs/test/integ-handlers/ts-paths-handler.ts

@@ -0,0 +1,5 @@
+import { mult } from '@integ-handlers/util';
+
+export async function handler(): Promise<void> {
+  console.log(mult(3, 4)); // eslint-disable-line no-console
+}

packages/@aws-cdk-testing/framework-integ/test/aws-lambda-nodejs/test/integ.compilations.ts

@@ -30,6 +30,18 @@ class TestStack extends Stack {
       },
       runtime: STANDARD_NODEJS_RUNTIME,
     });
+
+    new lambda.NodejsFunction(this, 'ts-paths-handler-tsconfig', {
+      entry: path.join(__dirname, 'integ-handlers/ts-paths-handler.ts'),
+      bundling: {
+        minify: true,
+        sourceMap: true,
+        sourceMapMode: lambda.SourceMapMode.BOTH,
+        tsconfig: path.join(__dirname, '..', 'tsconfig-custom.json'),
+        preCompilation: true,
+      },
+      runtime: STANDARD_NODEJS_RUNTIME,
+    });
   }
 }
 

packages/aws-cdk-lib/aws-lambda-nodejs/lib/util.ts

@@ -186,6 +186,8 @@ export function getTsconfigCompilerOptions(tsconfigPath: string): string {
     } else if (type === 'object') {
       if (Array.isArray(value)) {
         compilerOptionsString += option + ' ' + value.join(',') + ' ';
+      } else {
+        compilerOptionsString += option + ' \'' + JSON.stringify(value) + '\' ';
       }
     } else {
       throw new Error(`Missing support for compilerOption: [${key}]: { ${type}, ${value}} \n`);

packages/aws-cdk-lib/aws-lambda-nodejs/test/testtsconfig.json

@@ -29,6 +29,7 @@
     "stripInternal": false,
     "target": "ES2020",
     "composite": true,
-    "tsBuildInfoFile": "tsconfig.tsbuildinfo"
+    "tsBuildInfoFile": "tsconfig.tsbuildinfo",
+    "paths": { "@test/paths": ["./test/paths"] }
   }
 }

packages/aws-cdk-lib/aws-lambda-nodejs/test/util.test.ts

@@ -220,6 +220,7 @@ describe('getTsconfigCompilerOptions', () => {
       '--noUnusedLocals',
       '--noUnusedParameters',
       '--outDir ./',
+      '--paths \'{"@test/paths":["./test/paths"]}\'',
       '--resolveJsonModule',
       '--rootDir ./',
       '--strict',
@@ -252,6 +253,7 @@ describe('getTsconfigCompilerOptions', () => {
       '--noUnusedLocals',
       '--noUnusedParameters',
       '--outDir ./',
+      '--paths \'{"@test/paths":["./test/paths"]}\'',
       '--resolveJsonModule',
       '--rootDir ./',
       '--strict',