makepad/libs/relax/compiler/tests/missing_foreign.rs
Admin b22a714840 makepad run: the Rust JIT (libs/relax) and makepad-remote
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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-13 12:26:21 +02:00

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541 B
Rust

// A foreign fn the host lacks (another platform's API) compiles; calling it panics with a
// one-line report naming the symbol, and the next test runs. Intentionally fails one test.
extern "C" {
fn relax_no_such_symbol_xyz(a: i32) -> i32;
fn abs(x: i32) -> i32;
}
fn maybe(call: bool) -> i32 {
if call { unsafe { relax_no_such_symbol_xyz(3) } } else { unsafe { abs(-4) } }
}
#[test]
fn not_called() { println!("{}", maybe(false)); }
#[test]
fn called() { println!("{}", maybe(true)); }
#[test]
fn after() { println!("after"); }