averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-21 12:14:44 +01:00
Code Issues Packages Projects Releases Wiki Activity

Sema: Split up SolverTrail::Change::BoundTypeVariable

Browse Source
This commit is contained in:
Slava Pestov
2024-09-30 15:09:38 -04:00
parent 45488809c0
commit ae53c8e7ff
4 changed files with 39 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
lib/Sema/ConstraintGraph.cpp
View File

@@ -559,29 +559,24 @@ void ConstraintGraph::bindTypeVariable(TypeVariableType *typeVar, Type fixed) {
otherNode.addReferencedBy(typeVar);
node.addReferencedVar(otherTypeVar);
}
// Record the change, if there are active scopes.
if (CS.isRecordingChanges())
CS.recordChange(SolverTrail::Change::boundTypeVariable(typeVar, fixed));
// Record the change, if there are active scopes.
if (CS.isRecordingChanges())
CS.recordChange(SolverTrail::Change::relatedTypeVariables(typeVar, otherTypeVar));
}
}
void ConstraintGraph::introduceToInference(TypeVariableType *typeVar, Type fixed) {
(*this)[typeVar].introduceToInference(fixed);
}
void ConstraintGraph::unbindTypeVariable(TypeVariableType *typeVar, Type fixed) {
void ConstraintGraph::unrelateTypeVariables(TypeVariableType *typeVar,
TypeVariableType *otherTypeVar) {
auto &node = (*this)[typeVar];
auto &otherNode = (*this)[otherTypeVar];
llvm::SmallPtrSet<TypeVariableType *, 4> referencedVars;
fixed->getTypeVariables(referencedVars);
for (auto otherTypeVar : referencedVars) {
auto &otherNode = (*this)[otherTypeVar];
otherNode.removeReferencedBy(typeVar);
node.removeReference(otherTypeVar);
}
otherNode.removeReferencedBy(typeVar);
node.removeReference(otherTypeVar);
}
void ConstraintGraph::retractFromInference(TypeVariableType *typeVar, Type fixed) {