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fix(derive): fail missing surface generation

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Make #[slhx::surface] report a compile-time error when slhx.generated.rs is absent instead of silently expanding to an empty module. Add compile-fail coverage for the missing generated include path.

req: build/004

req: test/003
This commit is contained in:
slhx agent
2026-05-25 21:20:18 +02:00
parent a6db4699f7
commit 3ea596a218
4 changed files with 78 additions and 19 deletions
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slhx-derive/tests/compile_fail.rs
+62 -16
View File
@@ -46,14 +46,7 @@ fn known() {}
"#,
);
let output = Command::new("cargo")
.arg("check")
.arg("--quiet")
.arg("--manifest-path")
.arg(fixture.path.join("Cargo.toml"))
.env("CARGO_TARGET_DIR", fixture.path.join("target"))
.output()
.expect("cargo check fixture runs");
let output = check_fixture(&fixture);
assert!(!output.status.success(), "fixture unexpectedly compiled");
let stderr = String::from_utf8_lossy(&output.stderr);
@@ -67,6 +60,55 @@ fn known() {}
);
}
#[test]
fn surface_macro_reports_missing_generated_include() {
// req: build/004 req: test/003
let fixture = Fixture::new("slhx-derive-surface-include-fail");
fixture.write(
"Cargo.toml",
&format!(
r#"[package]
name = "slhx-derive-surface-include-fail"
version = "0.0.0"
edition = "2021"
[lib]
path = "src/lib.rs"
[dependencies]
slhx = {{ path = {:?} }}
"#,
repo_path("slhx")
),
);
fixture.write(
"build.rs",
r#"fn main() {
println!("cargo:rerun-if-changed=build.rs");
}
"#,
);
fixture.write(
"src/lib.rs",
r#"#[slhx::surface]
pub mod ui {}
"#,
);
let output = check_fixture(&fixture);
assert!(!output.status.success(), "fixture unexpectedly compiled");
let stderr = String::from_utf8_lossy(&output.stderr);
assert!(
stderr.contains("#[slhx::surface] could not find"),
"missing surface include diagnostic in stderr:\n{stderr}"
);
assert!(
stderr.contains("add slhx_build::app().run()? to build.rs"),
"missing build.rs hint in stderr:\n{stderr}"
);
}
#[test]
fn generated_resource_references_fail_when_name_is_absent() {
// req: style/002 req: codegen/001 req: test/003
@@ -110,14 +152,7 @@ pub const MISSING: slhx::CssClass = ui::classes::missing;
"#,
);
let output = Command::new("cargo")
.arg("check")
.arg("--quiet")
.arg("--manifest-path")
.arg(fixture.path.join("Cargo.toml"))
.env("CARGO_TARGET_DIR", fixture.path.join("target"))
.output()
.expect("cargo check fixture runs");
let output = check_fixture(&fixture);
assert!(!output.status.success(), "fixture unexpectedly compiled");
let stderr = String::from_utf8_lossy(&output.stderr);
@@ -127,6 +162,17 @@ pub const MISSING: slhx::CssClass = ui::classes::missing;
);
}
fn check_fixture(fixture: &Fixture) -> std::process::Output {
Command::new("cargo")
.arg("check")
.arg("--quiet")
.arg("--manifest-path")
.arg(fixture.path.join("Cargo.toml"))
.env("CARGO_TARGET_DIR", fixture.path.join("target"))
.output()
.expect("cargo check fixture runs")
}
fn repo_path(crate_name: &str) -> PathBuf {
Path::new(env!("CARGO_MANIFEST_DIR"))
.parent()