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Rust: Strengthen isNotInstantiationOf uses

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This commit is contained in:
Tom Hvitved
2025-12-10 20:44:27 +01:00
parent f30a3b3712
commit d5a95a8099
5 changed files with 40 additions and 203 deletions
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20
rust/ql/lib/codeql/rust/internal/TypeInference.qll
View File

@@ -1430,11 +1430,19 @@ private module MethodResolution {
* Holds if the method inside `i` with matching name and arity can be ruled
* out as a target of this call, because the candidate receiver type represented
* by `derefChain` and `borrow` is incompatible with the `self` parameter type.
*
* The types are incompatible because they disagree on a concrete type somewhere
* inside `root`.
*/
pragma[nomagic]
private predicate hasIncompatibleTarget(ImplOrTraitItemNode i, string derefChain, boolean borrow) {
ReceiverIsInstantiationOfSelfParam::argIsNotInstantiationOf(MkMethodCallCand(this, derefChain,
borrow), i, _)
private predicate hasIncompatibleTarget(
ImplOrTraitItemNode i, string derefChain, boolean borrow, Type root
) {
exists(TypePath path |
ReceiverIsInstantiationOfSelfParam::argIsNotInstantiationOf(MkMethodCallCand(this,
derefChain, borrow), i, _, path) and
path.isCons(root.getATypeParameter(), _)
)
}
/**
@@ -1448,7 +1456,7 @@ private module MethodResolution {
ImplItemNode impl, string derefChain, boolean borrow
) {
ReceiverIsNotInstantiationOfBlanketLikeSelfParam::argIsNotInstantiationOf(MkMethodCallCand(this,
derefChain, borrow), impl, _)
derefChain, borrow), impl, _, _)
or
ReceiverSatisfiesBlanketLikeConstraint::dissatisfiesBlanketConstraint(MkMethodCallCand(this,
derefChain, borrow), impl)
@@ -1479,7 +1487,7 @@ private module MethodResolution {
forall(ImplOrTraitItemNode i |
methodCallNonBlanketCandidate(this, _, i, _, strippedTypePath, strippedType)
|
this.hasIncompatibleTarget(i, derefChain, borrow)
this.hasIncompatibleTarget(i, derefChain, borrow, strippedType)
)
}
@@ -1818,7 +1826,7 @@ private module MethodResolution {
*/
pragma[nomagic]
private predicate hasIncompatibleInherentTarget(Impl impl) {
ReceiverIsNotInstantiationOfInherentSelfParam::argIsNotInstantiationOf(this, impl, _)
ReceiverIsNotInstantiationOfInherentSelfParam::argIsNotInstantiationOf(this, impl, _, _)
}
/**

6
rust/ql/lib/codeql/rust/internal/typeinference/FunctionType.qll
View File

@@ -256,8 +256,10 @@ module ArgIsInstantiationOf<
ArgSubstIsInstantiationOf::isInstantiationOf(arg, i, constraint)
}
predicate argIsNotInstantiationOf(Arg arg, ImplOrTraitItemNode i, AssocFunctionType constraint) {
ArgSubstIsInstantiationOf::isNotInstantiationOf(arg, i, constraint)
predicate argIsNotInstantiationOf(
Arg arg, ImplOrTraitItemNode i, AssocFunctionType constraint, TypePath path
) {
ArgSubstIsInstantiationOf::isNotInstantiationOf(arg, i, constraint, path)
}
}

2
rust/ql/test/library-tests/type-inference/main.rs
View File

@@ -3064,7 +3064,7 @@ mod literal_overlap {
pub fn f() -> usize {
let mut x = 0;
x = x.f(); // $ target=usizef $ SPURIOUS: target=i32f target=Reff
x = x.f(); // $ target=usizef $ SPURIOUS: target=i32f
x
}
}

186
rust/ql/test/library-tests/type-inference/type-inference.expected
View File

@@ -11013,203 +11013,17 @@ inferType
| main.rs:3065:25:3069:5 | { ... } | | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:17:3066:17 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3066:21:3066:21 | 0 | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:9:3067:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:9:3067:17 | ... = ... | | {EXTERNAL LOCATION} | () |
| main.rs:3067:13:3067:13 | x | | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:13 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3067:13:3067:17 | x.f() | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | i32 |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | usize |
| main.rs:3068:9:3068:9 | x | TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef.TRef | {EXTERNAL LOCATION} | & |
| main.rs:3077:11:3112:1 | { ... } | | {EXTERNAL LOCATION} | () |
| main.rs:3078:5:3078:21 | ...::f(...) | | {EXTERNAL LOCATION} | () |
| main.rs:3079:5:3079:20 | ...::f(...) | | main.rs:72:5:72:21 | Foo |

29
shared/typeinference/codeql/typeinference/internal/TypeInference.qll
View File

@@ -705,7 +705,8 @@ module Make1<LocationSig Location, InputSig1<Location> Input1> {
}
/**
* Holds if `app` is _not_ a possible instantiation of `constraint`.
* Holds if `app` is _not_ a possible instantiation of `constraint`, because `app`
* and `constraint` differ on concrete types at `path`.
*
* This is an approximation of `not isInstantiationOf(app, abs, constraint)`, but
* defined without a negative occurrence of `isInstantiationOf`.
@@ -719,9 +720,11 @@ module Make1<LocationSig Location, InputSig1<Location> Input1> {
* `isInstantiationOf` nor `isNotInstantiationOf` will hold.
*/
pragma[nomagic]
predicate isNotInstantiationOf(App app, TypeAbstraction abs, Constraint constraint) {
predicate isNotInstantiationOf(
App app, TypeAbstraction abs, Constraint constraint, TypePath path
) {
// `app` and `constraint` differ on a concrete type
exists(Type t, Type t2, TypePath path |
exists(Type t, Type t2 |
t = resolveTypeAt(app, abs, constraint, path) and
not t = abs.getATypeParameter() and
app.getTypeAt(path) = t2 and
@@ -983,6 +986,9 @@ module Make1<LocationSig Location, InputSig1<Location> Input1> {
}
}
private module SatisfiesConstraintIsInstantiationOf =
IsInstantiationOf<HasTypeTree, TypeMentionTypeTree, IsInstantiationOfInput>;
/**
* Holds if `tt` satisfies `constraint` through `abs`, `sub`, and `constraintMention`.
*/
@@ -1004,13 +1010,21 @@ module Make1<LocationSig Location, InputSig1<Location> Input1> {
// constraint we need to find the right implementation, which is the
// one where the type instantiates the precondition.
if multipleConstraintImplementations(type, constraint)
then
IsInstantiationOf<HasTypeTree, TypeMentionTypeTree, IsInstantiationOfInput>::isInstantiationOf(tt,
abs, condition)
then SatisfiesConstraintIsInstantiationOf::isInstantiationOf(tt, abs, condition)
else any()
)
}
pragma[nomagic]
private predicate isNotInstantiationOf(
HasTypeTree tt, TypeAbstraction abs, TypeMention condition, Type root
) {
exists(TypePath path |
SatisfiesConstraintIsInstantiationOf::isNotInstantiationOf(tt, abs, condition, path) and
path.isCons(root.getATypeParameter(), _)
)
}
/**
* Holds if `tt` does not satisfy `constraint`.
*
@@ -1040,8 +1054,7 @@ module Make1<LocationSig Location, InputSig1<Location> Input1> {
forex(TypeAbstraction abs, TypeMention condition |
rootTypesSatisfaction(type, constraint, abs, condition, _)
|
IsInstantiationOf<HasTypeTree, TypeMentionTypeTree, IsInstantiationOfInput>::isNotInstantiationOf(tt,
abs, condition)
isNotInstantiationOf(tt, abs, condition, type)
)
)
)