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Rust: Add type inference regression test
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‎rust/ql/test/library-tests/type-inference/overloading.rs‎

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@@ -197,3 +197,44 @@ mod impl_overlap2 {
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let z: i64 = x.g(0i32); // $ target=g4
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}
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}
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mod from_default {
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#[derive(Default)]
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struct S;
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fn f() -> S {
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let x = Default::default(); // $ target=default type=x:S
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From::from(x) // $ target=from
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}
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struct S1;
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struct S2;
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impl From<S> for S1 {
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// from1
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fn from(_: S) -> Self {
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S1
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}
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}
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impl From<S2> for S1 {
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// from2
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fn from(_: S2) -> Self {
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S1
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}
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}
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impl From<S> for S2 {
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// from3
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fn from(_: S) -> Self {
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S2
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}
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}
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fn g(b: bool) -> S1 {
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let s = if b { S } else { Default::default() }; // $ target=default type=s:S
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let x = From::from(s); // $ target=from1 type=x:S1
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x
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}
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}

‎rust/ql/test/library-tests/type-inference/type-inference.expected‎

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Original file line numberDiff line numberDiff line change
@@ -3792,6 +3792,16 @@ inferCertainType
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| overloading.rs:196:13:196:13 | z | | {EXTERNAL LOCATION} | i64 |
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| overloading.rs:197:13:197:13 | z | | {EXTERNAL LOCATION} | i64 |
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| overloading.rs:197:26:197:29 | 0i32 | | {EXTERNAL LOCATION} | i32 |
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| overloading.rs:205:17:208:5 | { ... } | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:216:17:216:17 | _ | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:216:31:218:9 | { ... } | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:223:17:223:17 | _ | | overloading.rs:212:5:212:14 | S2 |
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| overloading.rs:223:32:225:9 | { ... } | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:230:17:230:17 | _ | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:230:31:232:9 | { ... } | | overloading.rs:212:5:212:14 | S2 |
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| overloading.rs:235:10:235:10 | b | | {EXTERNAL LOCATION} | bool |
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| overloading.rs:235:25:239:5 | { ... } | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:236:20:236:20 | b | | {EXTERNAL LOCATION} | bool |
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| pattern_matching.rs:13:26:133:1 | { ... } | | {EXTERNAL LOCATION} | Option |
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| pattern_matching.rs:13:26:133:1 | { ... } | T | {EXTERNAL LOCATION} | () |
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| pattern_matching.rs:15:5:18:5 | if ... {...} | | {EXTERNAL LOCATION} | () |
@@ -12002,6 +12012,33 @@ inferType
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| overloading.rs:197:22:197:22 | x | | {EXTERNAL LOCATION} | i32 |
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| overloading.rs:197:22:197:30 | x.g(...) | | {EXTERNAL LOCATION} | i64 |
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| overloading.rs:197:26:197:29 | 0i32 | | {EXTERNAL LOCATION} | i32 |
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| overloading.rs:205:17:208:5 | { ... } | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:206:13:206:13 | x | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:206:17:206:34 | ...::default(...) | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:207:9:207:21 | ...::from(...) | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:207:20:207:20 | x | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:216:17:216:17 | _ | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:216:31:218:9 | { ... } | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:217:13:217:14 | S1 | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:223:17:223:17 | _ | | overloading.rs:212:5:212:14 | S2 |
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| overloading.rs:223:32:225:9 | { ... } | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:224:13:224:14 | S1 | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:230:17:230:17 | _ | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:230:31:232:9 | { ... } | | overloading.rs:212:5:212:14 | S2 |
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| overloading.rs:231:13:231:14 | S2 | | overloading.rs:212:5:212:14 | S2 |
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| overloading.rs:235:10:235:10 | b | | {EXTERNAL LOCATION} | bool |
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| overloading.rs:235:25:239:5 | { ... } | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:236:13:236:13 | s | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:236:17:236:54 | if b {...} else {...} | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:236:20:236:20 | b | | {EXTERNAL LOCATION} | bool |
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| overloading.rs:236:22:236:26 | { ... } | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:236:24:236:24 | S | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:236:33:236:54 | { ... } | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:236:35:236:52 | ...::default(...) | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:237:13:237:13 | x | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:237:17:237:29 | ...::from(...) | | overloading.rs:210:5:210:14 | S1 |
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| overloading.rs:237:28:237:28 | s | | overloading.rs:202:5:203:13 | S |
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| overloading.rs:238:9:238:9 | x | | overloading.rs:210:5:210:14 | S1 |
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| pattern_matching.rs:13:26:133:1 | { ... } | | {EXTERNAL LOCATION} | Option |
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| pattern_matching.rs:13:26:133:1 | { ... } | T | {EXTERNAL LOCATION} | () |
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| pattern_matching.rs:14:9:14:13 | value | | {EXTERNAL LOCATION} | Option |

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