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Treat bound UMD global exports as affecting global scope so incremental builds invalidate unchanged consumers after namespace or type changes. Add shared CLI and watch regression histories using the existing test framework. Baselines remain to be generated: offline framework execution is blocked by uncached test dependencies.
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October 26, 2026 06:23
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| import "testing" | ||
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| func TestTscUMD(t *testing.T) { |
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This should just be in an existing tsc test. We have places for these that are not new files.
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Related issue: #64967.
UMD declarations with
export as namespaceare incorrectly classified as not affecting global scope, allowing incremental builds to reuse stale diagnostics for unchanged consumers.Check
GlobalExportsafter binding so the existing global invalidation logic handles namespace, type, and file changes. Add CLI and watch regression histories that compare incremental results with fresh builds.The independent CLI reproduction passes all 11 stages with the fix (four mismatches without it). The new framework tests and baselines remain pending because test dependencies are unavailable offline. Full test, lint, and repository format checks have not been run.
AI assistance: The implementation and tests were authored with AI assistance.