Brummel
e7e67e1a40
Closes fieldtest-form-a friction finding #4. `str_concat : (borrow Str, borrow Str) -> Str` ships in the four-site-lockstep pattern established by `str_clone` / `int_to_str` / `bool_to_str` (iter 24.1). The LLM-natural Show-MyType body `(app str_concat "label=" (app int_to_str x))` now parses, checks, builds, and runs end-to-end. Sites touched (lockstep): - runtime/str.c — `ailang_str_concat(a, b)` slab-allocates and memcpys both source payloads into a new heap-Str. - ailang-check/src/builtins.rs — `env.globals.insert("str_concat", Fn { 2x Str borrow, ret Str own, effects [] })` + `list()` row + `install_str_concat_signature` unit test. - ailang-codegen/src/lib.rs — `declare ptr @ailang_str_concat(ptr, ptr)` extern + `lower_app` arm after str_clone + `is_builtin_callable` extension + IR-pin unit test `str_concat_emits_call_to_ailang_str_concat`. - examples/show_user_adt_with_label.ail (new) + crates/ail/tests/ str_concat_e2e.rs (new) — corpus fixture exercising the LLM-natural Show body shape + E2E pin asserting check + build + run produce `Item 42\n`. Lockstep collision repaired: examples/bug_unbound_in_instance_method.ail used `str_concat` as its UNBOUND name (because that was the literal fieldtester repro). Renamed to `format_label` (LLM-author-realistic helper name that will never become a builtin) and updated the pin test `crates/ail/tests/unbound_in_instance_method_pin.rs` accordingly, preserving the regression guard's intent (instance-method-body walked through unbound-var check). DESIGN.md amended: new §"Heap-Str primitives" subsection between the milestone-24 Show-backer enumeration and the existing `Primitive output goes through ...` paragraph, cataloguing all five heap-Str primitives (`int_to_str`, `bool_to_str`, `float_to_str`, `str_clone`, `str_concat`) with signatures, iter origins, and the user-visible-vs-prelude-internal distinction. Show-backer block unchanged. IR snapshots regenerated (hello, list, max3, sum, ws_main) to absorb the new `declare ptr @ailang_str_concat(ptr, ptr)` line in the unconditional extern header — same upkeep pattern as hs.4 which regenerated the same 5 snapshots for the same reason (unconditional declares dead-stripped by clang -O2 when unused). Tests: 559 + 3 = 562 green (E2E pin + builtin-signature test + IR-pin test). Zero re-loops across all 7 tasks.
70 lines
2.3 KiB
Rust
70 lines
2.3 KiB
Rust
//! E2E pin for the `str_concat` heap-Str primitive shipped in iter
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//! `str-concat`. Asserts that `ail check` + `ail build` + run on
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//! `examples/show_user_adt_with_label.ail` produce stdout
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//! `Item 42\n` — i.e. that the Show body's
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//! `(app str_concat "Item " (app int_to_str n))` evaluates correctly
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//! and `print` emits the concatenated heap-Str.
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//!
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//! Without `str_concat` registered as a builtin (pre-iter state), the
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//! fixture fails `ail check` with `[unbound-var]: str_concat`. After
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//! the iter ships, both check and build succeed and the binary
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//! produces the expected stdout.
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use std::path::Path;
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use std::process::Command;
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fn ail_bin() -> &'static str {
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env!("CARGO_BIN_EXE_ail")
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}
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#[test]
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fn str_concat_e2e_show_user_adt_with_label() {
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let manifest_dir = env!("CARGO_MANIFEST_DIR");
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let workspace = Path::new(manifest_dir).parent().unwrap().parent().unwrap();
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let src = workspace
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.join("examples")
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.join("show_user_adt_with_label.ail");
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assert!(src.exists(), "fixture missing: {}", src.display());
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let check = Command::new(ail_bin())
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.args(["check", src.to_str().unwrap()])
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.output()
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.expect("ail check failed to spawn");
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assert_eq!(
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check.status.code(),
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Some(0),
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"ail check must succeed; got stdout={} stderr={}",
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String::from_utf8_lossy(&check.stdout),
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String::from_utf8_lossy(&check.stderr)
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);
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let tmp = tempfile::tempdir().expect("tempdir");
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let bin_path = tmp.path().join("a.out");
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let build = Command::new(ail_bin())
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.args([
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"build",
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src.to_str().unwrap(),
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"-o",
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bin_path.to_str().unwrap(),
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])
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.output()
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.expect("ail build failed to spawn");
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assert_eq!(
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build.status.code(),
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Some(0),
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"ail build must succeed; got stdout={} stderr={}",
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String::from_utf8_lossy(&build.stdout),
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String::from_utf8_lossy(&build.stderr)
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);
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let run = Command::new(&bin_path)
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.output()
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.expect("produced binary failed to spawn");
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assert_eq!(run.status.code(), Some(0), "binary must exit 0");
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let stdout = String::from_utf8_lossy(&run.stdout);
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assert_eq!(
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stdout, "Item 42\n",
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"expected `Item 42\\n` from str_concat + int_to_str + print; got {stdout:?}"
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);
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}
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