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NFC: add operator<< for SubstitutionMap. #32637

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Jul 5, 2020
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NFC: add operator<< for SubstitutionMap. #32637

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6 changes: 6 additions & 0 deletions include/swift/AST/SubstitutionMap.h
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Original file line number Diff line number Diff line change
Expand Up @@ -286,6 +286,12 @@ class SubstitutionMap {
Type lookupSubstitution(CanSubstitutableType type) const;
};

inline llvm::raw_ostream &operator<<(llvm::raw_ostream &OS,
const SubstitutionMap &subs) {
subs.dump(OS);
return OS;
}

/// A function object suitable for use as a \c TypeSubstitutionFn that
/// queries an underlying \c SubstitutionMap.
struct QuerySubstitutionMap {
Expand Down