reference-compiler-cli

What the skill teaches

A reference skill in the Angular repository that explains how the Angular compiler in packages/compiler-cli is built, for agents changing that code. It describes the compiler as a lazy, incremental wrapper around the TypeScript program that turns component, directive and pipe decorators into static Ivy fields, and walks through its parts: the program and compiler classes, the trait state machine each decorated class moves through, decorator handlers, template type checking through generated type-check blocks, metadata and scope reading, and the emit transforms. It lists the compilation phases from construction to emit and the key source files for each part. It is meant for contributors to Angular, not for apps that use it.

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