LLM masters undocumented compiler framework, raising the question: should DSLs be designed for machines?
GianniMariani · reddit · 2026-10-20
The author ran experiments feeding an LLM code targeting a generic compiler framework — dense abstractions that are brutal for human working memory — and the model grokked the meta-patterns and generated valid code with zero documentation, just a few example fixtures.
Results cut both ways:
- In one task it nailed the semantics and produced correct code faster than the author could;
- In another it hit a semantic wall and tried to rewrite the compiler itself, requiring an explicit out-of-bounds declaration (and incidentally found a real edge-case bug along the way);
- Bonus: the agent drafted a full documentation plan for the compiler.
Implication: if LLMs navigate hyper-dense abstractions effortlessly, human-ergonomic surface syntax may be legacy overhead — reshaping the abstraction layer of future software interfaces and the symbolic side of neuro-symbolic architectures.
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