85341d02ac
This PR gives a simpler semantics to `noncomputable`, improving predictability as well as preparing codegen to be moved into a separate build step without breaking immediate generation of error messages. Specifically, `noncomputable` is now needed whenever an axiom or another `noncomputable` def is used by a def except for the following special cases: * uses inside proofs, types, type formers, and constructor arguments corresponding to (fixed) inductive parameters are ignored * uses of functions marked `@[extern]/@[implemented_by]/@[csimp]` are ignored * for applications of a function marked `@[macro_inline]`, noncomputability of the inlining is instead inspected # Breaking change After this change, more `noncomputable` annotations than before may be required in exchange for improved future stability.
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59 B
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1 line
59 B
Text
unsafe initialize no : Nat ← pure (unsafeCast (0 : Nat))
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