mirror of https://github.com/rust-lang/rust
51 lines
1.6 KiB
Rust
51 lines
1.6 KiB
Rust
//@ only-wasm32-wasip1
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use std::collections::{HashMap, HashSet};
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use std::path::Path;
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use run_make_support::{rfs, rustc, wasmparser};
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fn main() {
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test_file("foo.rs", &[("a", &["foo"]), ("b", &["foo"])]);
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test_file("bar.rs", &[("m1", &["f", "g"]), ("m2", &["f"])]);
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test_file("baz.rs", &[("sqlite", &["allocate", "deallocate"])]);
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test_file("log.rs", &[("test", &["log"])]);
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}
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fn test_file(file: &str, expected_imports: &[(&str, &[&str])]) {
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test(file, &[], expected_imports);
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test(file, &["-Clto"], expected_imports);
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test(file, &["-O"], expected_imports);
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test(file, &["-Clto", "-O"], expected_imports);
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}
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fn test(file: &str, args: &[&str], expected_imports: &[(&str, &[&str])]) {
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println!("test {file:?} {args:?} for {expected_imports:?}");
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rustc().input(file).target("wasm32-wasip1").args(args).run();
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let file = rfs::read(Path::new(file).with_extension("wasm"));
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let mut imports = HashMap::new();
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for payload in wasmparser::Parser::new(0).parse_all(&file) {
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let payload = payload.unwrap();
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if let wasmparser::Payload::ImportSection(s) = payload {
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for i in s {
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let i = i.unwrap();
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imports.entry(i.module).or_insert(HashSet::new()).insert(i.name);
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}
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}
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}
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eprintln!("imports {imports:?}");
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for (expected_module, expected_names) in expected_imports {
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let names = imports.remove(expected_module).unwrap();
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assert_eq!(names.len(), expected_names.len());
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for name in *expected_names {
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assert!(names.contains(name));
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}
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}
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assert!(imports.is_empty());
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}
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