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These changes integrate let declarations into the template pipeline. This involves a few operations: * Producing a `declareLet` instruction call at creation time to initialize the declaration. * Producing a `storeLet` instruction call in the place of the let declaration, including the necessary `advance` calls beforehand. * For let declarations used within their declaration view, moving the `const` to be placed right after the `storeLet` call to ensure the their value has been computed. * For let declarations that are _only_ used in their declaration view, removing the `storeLet` call and inlining the expression into the constant statement. PR Close #56299 |
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Angular Linker
This package contains a FileLinker and supporting code to be able to "link" partial declarations of components, directives, etc in libraries to produce the full definitions.
The partial declaration format allows library packages to be published to npm without exposing the underlying Ivy instructions.
The tooling here allows application build tools (e.g. CLI) to produce fully compiled components, directives, etc at the point when the application is bundled.
These linked files can be cached outside node_modules so it does not suffer from problems of mutating packages in node_modules.
Generally this tooling will be wrapped in a transpiler specific plugin, such as the provided Babel plugin.
Unit Testing
The unit tests are built and run using Bazel:
yarn bazel test //packages/compiler-cli/linker/test