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55 lines
1.1 KiB
Rust
55 lines
1.1 KiB
Rust
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mod common;
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use expect_test::expect;
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use salsa::{Accumulator, Database};
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use test_log::test;
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#[salsa::accumulator]
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struct Log(#[allow(dead_code)] String);
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#[salsa::tracked]
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fn push_logs(db: &dyn Database) {
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push_a_logs(db);
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}
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#[salsa::tracked]
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fn push_a_logs(db: &dyn Database) {
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Log("log a".to_string()).accumulate(db);
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push_b_logs(db);
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}
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#[salsa::tracked]
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fn push_b_logs(db: &dyn Database) {
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// No logs
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push_c_logs(db);
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}
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#[salsa::tracked]
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fn push_c_logs(db: &dyn Database) {
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// No logs
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push_d_logs(db);
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}
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#[salsa::tracked]
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fn push_d_logs(db: &dyn Database) {
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Log("log d".to_string()).accumulate(db);
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}
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#[test]
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fn accumulate_chain() {
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salsa::default_database().attach(|db| {
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let logs = push_logs::accumulated::<Log>(db);
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// Check that we don't see logs from `a` appearing twice in the input.
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expect![[r#"
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[
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Log(
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"log a",
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),
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Log(
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"log d",
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),
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]"#]]
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.assert_eq(&format!("{:#?}", logs));
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})
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}
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