30c82cd177
Source files that contain directives or components that need an inline type constructor or inline template type-check block would always be considered as affected in incremental rebuilds. The inline operations cause the source file to be updated in the TypeScript program that is created for template type-checking, which becomes the reuse program in a subsequent incremental rebuild. In an incremental rebuild, the source files from the new user program are compared to those from the reuse program. The updated source files are not the same as the original source file from the user program, so the incremental engine would mark the file which needed inline operations as affected. This prevents incremental reuse for these files, causing sub-optimal rebuild performance. This commit attaches the original source file for source files that have been updated with inline operations, such that the incremental engine is able to compare source files using the original source file. Fixes #42543 PR Close #42759
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