ad45ae07ef
A bodiless #builtin with a $T: Type param routes through monomorphization. When resolveBuiltin returned null for an unrecognized name, the builtin-body branch fell through to ensureTerminator's constInt(0) -- a silent-fallback default the CLAUDE.md REJECTED PATTERNS forbid. Emit a loud 'error: unknown #builtin <name>' diagnostic instead. Regression: examples/1189-diagnostics-unknown-builtin.sx
17 lines
640 B
Plaintext
17 lines
640 B
Plaintext
// A bodiless `#builtin` carrying a `$T: Type` parameter, whose name the
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// compiler does not recognize, must fail LOUDLY with an "unknown #builtin"
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// diagnostic — not silently evaluate to 0 (the CLAUDE.md silent-fallback
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// pattern). The generic monomorphization path (monomorphizeFunction's
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// builtin-body branch) now diagnoses an unresolved builtin name instead of
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// falling through to `ensureTerminator`'s `constInt(0)`.
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//
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// Regression (issue 0144).
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#import "modules/std.sx";
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// `mystery` is not a recognized builtin.
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mystery :: ($T: Type, x: T) -> T #builtin;
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main :: () {
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print("mystery(42) = {}\n", mystery(i64, 42));
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}
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