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AST: Update documentation comment in SubstitutionMap.h

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Slava Pestov
2020-01-08 16:44:27 -05:00
parent 652f8ee95b
commit 2d670f40a0
1 changed files with 3 additions and 4 deletions
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7
include/swift/AST/SubstitutionMap.h
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@@ -52,11 +52,10 @@ enum class CombineSubstitutionMaps {
/// any entity that can reference type parameters, e.g., types (via
/// Type::subst()) and conformances (via ProtocolConformanceRef::subst()).
///
/// SubstitutionMaps are constructed by calling the getSubstitutionMap() method
/// on a GenericSignature or (equivalently) by calling one of the static
/// \c SubstitutionMap::get() methods. However, most substitution maps are
/// SubstitutionMaps are constructed by calling the an overload of the static
/// method \c SubstitutionMap::get(). However, most substitution maps are
/// computed using higher-level entry points such as
/// TypeBase::getMemberSubstitutionMap().
/// TypeBase::getContextSubstitutionMap().
///
/// Substitution maps are ASTContext-allocated and are uniqued on construction,
/// so they can be used as fields in AST nodes.