feat: CDK LSP/Explorer Package Scaffolding - #1559
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megha-narayanan merged 2 commits intoMay 27, 2026
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General question: Why not have one package that holds all the architecture for the LSP and the Web Explorer and having sub directories within that package?
The toolkit-lib package kind of does this pattern
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This looks fine for initial scaffolding
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Merges the`feat/cdk-lsp' branch into `main`. The change is additive and introduces no behavior change to existing CLI commands. - New `@aws-cdk/cdk-explorer` package containing the Language Server under `lib/lsp` (server, diagnostics, CodeLens, template locator, position mapping). - Extends `@aws-cdk/cloud-assembly-api` with two parsing modules consumed by the server: `construct-tree.ts` (builds the construct tree from a cloud assembly) and `template-ranges.ts` (resolves a logical ID or property to its byte range in the template). Capabilities (folds in aws#1559, aws#1593, aws#1592, aws#1617, aws#1624, aws#1630, aws#1631, aws#1662, aws#1634, aws#1674): - Diagnostics: surfaces synth errors and policy-validation violations in the editor, mapped back to the source. - Surfaces CFN resources and adds CodeLens navigation from a construct to its template resource. - Navigation between construct source and the synthesized template in both directions. - Live refresh: diagnostics and CodeLens update when `cdk.out` changes. - Reads are constrained to the project directory, and template reads run off the LSP event loop. This PR is the server and parsing foundation. It does not add a shipped CLI command or the web explorer. ### Checklist - [ ] This change contains a major version upgrade for a dependency and I confirm all breaking changes are addressed - Release notes for the new version: --- By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license --------- Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Otavio Macedo <288203+otaviomacedo@users.noreply.github.com>
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Basic scaffolding for new packages to be implemented: a core functionality library, the lsp server, and the web explorer.
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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license