Bootstrapping a Compiler with Yul
summary
Claim: Yul lets Fe bootstrap a working compiler quickly by generating a Yul AST runtime that the Solidity compiler emits to bytecode. Implementation uses the yulzer crate and Rust declarative macros to emit hundreds of boilerplate runtime functions (ABI encode/decode, storage access, event emits) and a generated dispatcher switch that maps public functions; the backend then applies optimizations that drop unused helpers. It works and is reasonably gas‑efficient, but embedding the Solidity toolchain adds build time and system dependencies.
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