initial commit

.gitignore

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+*.js
+!jest.config.js
+*.d.ts
+node_modules
+
+# CDK asset staging directory
+.cdk.staging
+cdk.out

.npmignore

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+*.ts
+!*.d.ts
+
+# CDK asset staging directory
+.cdk.staging
+cdk.out

README.md

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-# cdk-lib-cfn-diff-issue-20240112
-Sample AWS CDK Construct Library to test issue around exporting @aws-cdk/cloudformation-diff
+# Welcome to your CDK TypeScript Construct Library project
+
+You should explore the contents of this project. It demonstrates a CDK Construct Library that includes a construct (`CdkLibCfnDiffIssue20240112`)
+which contains an Amazon SQS queue that is subscribed to an Amazon SNS topic.
+
+The construct defines an interface (`CdkLibCfnDiffIssue20240112Props`) to configure the visibility timeout of the queue.
+
+## Useful commands
+
+* `npm run build`   compile typescript to js
+* `npm run watch`   watch for changes and compile
+* `npm run test`    perform the jest unit tests
+
+## Other
+
+Check list of `cdk init` options:
+```
+cdk init --list
+```
+
+Create Custom AWS Construct Library:
+```
+cdk init lib --language typescript
+```
+
+## Reproduce issue
+```
+npm install
+npm run build
+```

jest.config.js

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+module.exports = {
+  testEnvironment: 'node',
+  roots: ['<rootDir>/test'],
+  testMatch: ['**/*.test.ts'],
+  transform: {
+    '^.+\\.tsx?$': 'ts-jest'
+  }
+};

lib/exports.ts

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+export * as cfndiff from "@aws-cdk/cloudformation-diff"

lib/index.ts

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+// import * as cdk from 'aws-cdk-lib';
+import { Construct } from 'constructs';
+// import * as sqs from 'aws-cdk-lib/aws-sqs';
+
+export interface CdkLibCfnDiffIssue20240112Props {
+  // Define construct properties here
+}
+
+export class CdkLibCfnDiffIssue20240112 extends Construct {
+
+  constructor(scope: Construct, id: string, props: CdkLibCfnDiffIssue20240112Props = {}) {
+    super(scope, id);
+
+    // Define construct contents here
+
+    // example resource
+    // const queue = new sqs.Queue(this, 'CdkLibCfnDiffIssue20240112Queue', {
+    //   visibilityTimeout: cdk.Duration.seconds(300)
+    // });
+  }
+}

output-error.txt

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+
+> cdk-lib-cfn-diff-issue-20240112@0.1.0 build
+> tsc
+
+node_modules/@aws-cdk/cloudformation-diff/lib/diff-template.d.ts(1,32): error TS2307: Cannot find module 'aws-sdk' or its corresponding type declarations.