Brummel
e406d07d81
Tasks 4-7 on the Boss-Repaired plan, completing the M1 iteration: - Task 4: check-side export-signature gate — CheckError variants ExportNonScalarSignature / ExportHasEffects (codes export-non-scalar-signature / export-has-effects), code() arms, check_fn gate (params->ret->effects, first-violation-wins, unconditional on f.export.is_some()). The clause-3 discriminator in code: effectful/non-scalar exports fail to typecheck. 6/6. - Task 5: codegen Target::StaticLib — Target enum, threaded param, @main/MissingEntryMain gated behind Target::Executable, one external @<sym> forwarder per export to @ail_<module>_<fn> (fn_scalar_sig/llvm_scalar). In-source missing_entry_main_is_error byte-unchanged. Lowering pin 2/2. - Task 6: CLI ail build --emit=staticlib — clap field, Cmd::Build branch, build_staticlib (verbatim build_to prefix + has_export guard + two-archive clang -c/ar rcs tail) + run_cmd. CLI pin 2/2. - Task 7: C-host E2E coherent-stop proof (cc links libembed_backtest_step.a + libailang_rt.a, backtest_step(0,3)=9 / (9,4)=25, s==25, exit 0) + DESIGN.md §"Embedding ABI (M1)" (scalar C ABI, provisional until M3). E2E pin 1/1. Independent Boss verification: E2E 1/1, gate 6/6, full workspace 0 failures, roundtrip_cli + design_schema_drift + spec_drift green, Invariant 1 holds (no new dep in core/codegen/runtime). 3 behaviour- neutral plan pseudo-vs-reality concerns in the journal. Default-exe codegen/runtime path byte-unchanged (check.py firing = tracked-P2 known-noise, audit-adjudicated). INDEX line added. Completes the M1 iteration (impl). Milestone-close audit + fieldtest (surface-touching) are the next pipeline steps.
45 lines
1.9 KiB
Rust
45 lines
1.9 KiB
Rust
//! Embedding-ABI M1 codegen (spec §4): `Target::StaticLib` lowering
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//! emits NO `@main` trampoline, NO `MissingEntryMain`, and one
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//! external `define i64 @backtest_step(...)` (the author-chosen C
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//! symbol from `(export "backtest_step")`) forwarding to the
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//! internal `@ail_embed_backtest_step_step` (module
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//! `embed_backtest_step` == file stem, per Design-decision 6).
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//! Executable-target lowering is byte-unchanged (the
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//! `missing_entry_main_is_error` in-source pin still holds).
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use ailang_core::Workspace;
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use std::path::PathBuf;
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fn load(file: &str) -> Workspace {
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let path = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
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.parent().unwrap().parent().unwrap()
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.join("examples").join(file);
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ailang_surface::load_workspace(&path).unwrap()
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}
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#[test]
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fn staticlib_emits_forwarder_no_main() {
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let ws = load("embed_backtest_step.ail");
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let ir = ailang_codegen::lower_workspace_staticlib_with_alloc(
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&ws, ailang_codegen::AllocStrategy::Rc).unwrap();
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assert!(!ir.contains("define i32 @main()"),
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"staticlib IR must not emit the @main trampoline");
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assert!(ir.contains("@backtest_step("),
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"staticlib IR must emit the external @backtest_step entrypoint \
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(the author-chosen C symbol — invariant under module rename)");
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assert!(ir.contains("@ail_embed_backtest_step_step("),
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"the forwarder must call the internal \
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@ail_embed_backtest_step_step (module embed_backtest_step)");
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}
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#[test]
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fn executable_target_still_emits_main() {
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let ws = load("embed_backtest_step.ail");
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// Default executable lowering is unaffected by the new field;
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// backtest has no `main`, so exe-target lowering still rejects.
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let err = ailang_codegen::lower_workspace_with_alloc(
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&ws, ailang_codegen::AllocStrategy::Rc).unwrap_err();
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assert!(format!("{err}").contains("has no `main` def"),
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"exe target must still surface MissingEntryMain; got {err}");
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}
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