Brummel
bcfe554686
Restores the Decision-5 IR-readability affordance for main-free
kernels: ail emit-ir gains --emit=staticlib, symmetric with
ail build, reusing the M1-audited Target::StaticLib path via a new
one-line lower_workspace_staticlib convenience. Zero-export guard
byte-identical to build_staticlib's. DESIGN.md widened (not
narrowed) + a pre-existing M1 synopsis omission corrected. 3 new
E2E tests; no fixture minted, no doc pin (E2E is the coverage).
Plan 03493c9.
68 lines
3.1 KiB
Rust
68 lines
3.1 KiB
Rust
//! Embedding-ABI M1 (M1 fieldtest spec_gap#2): `ail emit-ir
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//! --emit=staticlib` prints a `main`-free kernel's LLVM IR (the
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//! external `@<sym>` forwarders, no `@main`) instead of the
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//! executable-path `MissingEntryMain` rejection — the Decision-5
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//! IR-readability affordance for the artefact M1 introduced.
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use std::path::{Path, PathBuf};
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use std::process::Command;
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fn ail_bin() -> &'static str { env!("CARGO_BIN_EXE_ail") }
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fn ws_root() -> PathBuf {
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Path::new(env!("CARGO_MANIFEST_DIR"))
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.parent().unwrap().parent().unwrap().to_path_buf()
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}
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#[test]
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fn emit_ir_staticlib_prints_kernel_forwarder_no_main() {
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let fixture = ws_root().join("examples").join("embed_backtest_step.ail");
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let out = Command::new(ail_bin())
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.args(["emit-ir", fixture.to_str().unwrap(), "--emit=staticlib"])
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.output().expect("ail emit-ir --emit=staticlib");
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let stdout = String::from_utf8_lossy(&out.stdout);
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let stderr = String::from_utf8_lossy(&out.stderr);
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assert!(out.status.success(),
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"emit-ir --emit=staticlib on a main-free kernel must succeed; stderr={stderr}");
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assert!(!stderr.contains("has no `main` def"),
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"must NOT hit the executable-path MissingEntryMain rejection; stderr={stderr}");
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assert!(stdout.contains("@backtest_step("),
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"kernel IR must contain the external `(export \"backtest_step\")` forwarder; stdout={stdout}");
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assert!(stdout.contains("@ail_embed_backtest_step_step"),
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"kernel IR must contain the internal mangled symbol the forwarder calls; stdout={stdout}");
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assert!(!stdout.contains("@main("),
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"staticlib kernel IR must NOT contain an @main trampoline; stdout={stdout}");
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}
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#[test]
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fn emit_ir_staticlib_requires_an_export() {
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// embed_noentry_baseline has no `(export …)` fn — symmetric with
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// build's zero-export guard (embed_staticlib_cli.rs).
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let fixture = ws_root().join("examples").join("embed_noentry_baseline.ail");
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let out = Command::new(ail_bin())
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.args(["emit-ir", fixture.to_str().unwrap(), "--emit=staticlib"])
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.output().expect("ail emit-ir --emit=staticlib");
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assert!(!out.status.success(),
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"emit-ir --emit=staticlib with zero exports must fail");
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assert!(String::from_utf8_lossy(&out.stderr)
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.contains("at least one `(export"),
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"expected the zero-export staticlib error; got {}",
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String::from_utf8_lossy(&out.stderr));
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}
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#[test]
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fn emit_ir_default_exe_still_requires_main() {
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// Regression: --emit defaults to "exe"; emit-ir on a main-free
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// module WITHOUT --emit=staticlib must still hit MissingEntryMain
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// (the new staticlib branch must not alter the default path).
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let fixture = ws_root().join("examples").join("embed_backtest_step.ail");
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let out = Command::new(ail_bin())
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.args(["emit-ir", fixture.to_str().unwrap()])
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.output().expect("ail emit-ir");
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assert!(!out.status.success(),
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"default-exe emit-ir on a main-free kernel must still fail");
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assert!(String::from_utf8_lossy(&out.stderr)
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.contains("has no `main` def"),
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"default path must still surface MissingEntryMain; got {}",
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String::from_utf8_lossy(&out.stderr));
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}
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