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.
37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
// Error return-trace formatting (ERR step E3.3). `library/modules/std/trace.sx`
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// reads the trace buffer (E3.1, populated by E3.2's raise/try push wiring) and
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// renders it. `trace.print_current()` writes the trace to stderr; the catch
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// handler sees the full chain because the absorption clear fires at handler
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// EXIT, not entry. Frame locations are placeholders until DWARF (ERR E3.0)
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// resolves PCs to file:line; the count + ordering are already meaningful.
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//
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// Note: the trace goes to stderr. The test runner merges stderr+stdout, so the
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// snapshot shows the trace lines interleaved with the `print` (stdout) lines.
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#import "modules/std.sx";
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trace :: #import "modules/std/trace.sx";
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// Buffer length probe (the runtime symbol; public read API is the trace module).
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sx_trace_len :: () -> u32 extern;
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E :: error { BadInput, Overflow }
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leaf :: (n: i32) -> !E {
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if n < 0 { raise error.BadInput; } // pushes frame 0
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return;
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}
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mid :: (n: i32) -> !E {
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try leaf(n); // propagation pushes frame 1
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return;
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}
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main :: () -> i32 {
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mid(-1) catch (e) {
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print("[stdout] caught {}\n", e); // tag name via the always-linked table
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trace.print_current(); // [stderr] the 2-frame trace
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};
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print("[stdout] recovered; trace buffer now empty (len {})\n", sx_trace_len());
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return 0;
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}
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