66bdc70bf1
Move examples/*.sx and their expected/ snapshots into per-category subfolders (examples/<category>/...). Folder = leading filename token, with ffi-objc/ffi-jni kept whole; filenames are unchanged. The corpus runner and LSP sweep now discover each category's expected/ dir, while issues/ stays flat. Example 1058's repo-root-relative companion import is made file-relative. Path strings embedded in 164 snapshots were regenerated (path-only changes). Test-layout docs in CLAUDE.md updated.
31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
// A comptime type construction (declare/define, reflection) that leaves a type
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// INCOMPLETE must surface a build-gating DIAGNOSTIC naming the reason — not
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// poison the decl to `.unresolved` silently and let that crash at LLVM emission
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// or hide behind a downstream cascade. Here `declare("Undefined")` mints a
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// forward nominal slot that is NEVER completed by a matching `define(handle, …)`;
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// the compiler rejects the incomplete type at its construction site (exit 1, no
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// panic).
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//
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// NOTE: an EXPLICITLY-defined empty type (empty struct/tuple/enum/tagged_union)
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// is VALID — see examples/0641. The remaining rejection is purely the
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// never-defined `declare` placeholder, which would otherwise panic codegen
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// (`verifySizes`: llvm_size != ir_size on an unsized forward slot).
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//
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// Regression (issue 0140): before the fix this panicked with "unresolved type
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// reached LLVM emission" (exit 134), because the interp's bail detail was
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// dropped (`catch return null`) and `.unresolved` reached codegen unannounced.
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#import "modules/std.sx";
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#import "modules/std/meta.sx";
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// Declared but never `define`d — an incomplete forward slot.
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mk_undefined :: () -> Type {
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return declare("Undefined");
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}
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Undefined :: mk_undefined();
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main :: () -> i32 {
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u : Undefined = ---;
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return 0;
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}
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