forked from OSchip/llvm-project
492 lines
17 KiB
C++
492 lines
17 KiB
C++
//===--- Registry.cpp - Matcher registry -------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===------------------------------------------------------------===//
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///
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/// \file
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/// \brief Registry map populated at static initialization time.
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///
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//===------------------------------------------------------------===//
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#include "clang/ASTMatchers/Dynamic/Registry.h"
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#include "Marshallers.h"
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#include "clang/ASTMatchers/ASTMatchers.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/ManagedStatic.h"
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#include <set>
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#include <utility>
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using namespace clang::ast_type_traits;
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namespace clang {
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namespace ast_matchers {
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namespace dynamic {
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namespace {
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using internal::MatcherDescriptor;
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typedef llvm::StringMap<const MatcherDescriptor *> ConstructorMap;
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class RegistryMaps {
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public:
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RegistryMaps();
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~RegistryMaps();
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const ConstructorMap &constructors() const { return Constructors; }
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private:
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void registerMatcher(StringRef MatcherName, MatcherDescriptor *Callback);
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ConstructorMap Constructors;
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};
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void RegistryMaps::registerMatcher(StringRef MatcherName,
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MatcherDescriptor *Callback) {
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assert(Constructors.find(MatcherName) == Constructors.end());
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Constructors[MatcherName] = Callback;
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}
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#define REGISTER_MATCHER(name) \
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registerMatcher(#name, internal::makeMatcherAutoMarshall( \
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::clang::ast_matchers::name, #name));
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#define SPECIFIC_MATCHER_OVERLOAD(name, Id) \
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static_cast< ::clang::ast_matchers::name##_Type##Id>( \
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::clang::ast_matchers::name)
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#define REGISTER_OVERLOADED_2(name) \
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do { \
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MatcherDescriptor *Callbacks[] = { \
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internal::makeMatcherAutoMarshall(SPECIFIC_MATCHER_OVERLOAD(name, 0), \
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#name), \
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internal::makeMatcherAutoMarshall(SPECIFIC_MATCHER_OVERLOAD(name, 1), \
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#name) \
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}; \
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registerMatcher(#name, \
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new internal::OverloadedMatcherDescriptor(Callbacks)); \
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} while (0)
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/// \brief Generate a registry map with all the known matchers.
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RegistryMaps::RegistryMaps() {
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// TODO: Here is the list of the missing matchers, grouped by reason.
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//
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// Need Variant/Parser fixes:
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// ofKind
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//
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// Polymorphic + argument overload:
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// findAll
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//
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// Other:
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// equals
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// equalsNode
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REGISTER_OVERLOADED_2(callee);
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REGISTER_OVERLOADED_2(hasPrefix);
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REGISTER_OVERLOADED_2(hasType);
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REGISTER_OVERLOADED_2(isDerivedFrom);
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REGISTER_OVERLOADED_2(isSameOrDerivedFrom);
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REGISTER_OVERLOADED_2(loc);
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REGISTER_OVERLOADED_2(pointsTo);
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REGISTER_OVERLOADED_2(references);
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REGISTER_OVERLOADED_2(thisPointerType);
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REGISTER_MATCHER(accessSpecDecl);
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REGISTER_MATCHER(alignOfExpr);
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REGISTER_MATCHER(allOf);
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REGISTER_MATCHER(anyOf);
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REGISTER_MATCHER(anything);
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REGISTER_MATCHER(argumentCountIs);
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REGISTER_MATCHER(arraySubscriptExpr);
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REGISTER_MATCHER(arrayType);
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REGISTER_MATCHER(asString);
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REGISTER_MATCHER(asmStmt);
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REGISTER_MATCHER(atomicType);
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REGISTER_MATCHER(autoType);
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REGISTER_MATCHER(binaryOperator);
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REGISTER_MATCHER(bindTemporaryExpr);
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REGISTER_MATCHER(blockPointerType);
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REGISTER_MATCHER(boolLiteral);
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REGISTER_MATCHER(breakStmt);
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REGISTER_MATCHER(builtinType);
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REGISTER_MATCHER(cStyleCastExpr);
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REGISTER_MATCHER(callExpr);
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REGISTER_MATCHER(caseStmt);
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REGISTER_MATCHER(castExpr);
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REGISTER_MATCHER(catchStmt);
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REGISTER_MATCHER(characterLiteral);
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REGISTER_MATCHER(classTemplateDecl);
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REGISTER_MATCHER(classTemplateSpecializationDecl);
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REGISTER_MATCHER(complexType);
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REGISTER_MATCHER(compoundLiteralExpr);
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REGISTER_MATCHER(compoundStmt);
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REGISTER_MATCHER(conditionalOperator);
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REGISTER_MATCHER(constCastExpr);
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REGISTER_MATCHER(constantArrayType);
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REGISTER_MATCHER(constructExpr);
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REGISTER_MATCHER(constructorDecl);
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REGISTER_MATCHER(containsDeclaration);
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REGISTER_MATCHER(continueStmt);
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REGISTER_MATCHER(ctorInitializer);
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REGISTER_MATCHER(decl);
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REGISTER_MATCHER(declCountIs);
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REGISTER_MATCHER(declRefExpr);
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REGISTER_MATCHER(declStmt);
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REGISTER_MATCHER(declaratorDecl);
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REGISTER_MATCHER(defaultArgExpr);
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REGISTER_MATCHER(defaultStmt);
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REGISTER_MATCHER(deleteExpr);
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REGISTER_MATCHER(dependentSizedArrayType);
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REGISTER_MATCHER(destructorDecl);
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REGISTER_MATCHER(doStmt);
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REGISTER_MATCHER(dynamicCastExpr);
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REGISTER_MATCHER(eachOf);
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REGISTER_MATCHER(elaboratedType);
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REGISTER_MATCHER(enumConstantDecl);
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REGISTER_MATCHER(enumDecl);
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REGISTER_MATCHER(equalsBoundNode);
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REGISTER_MATCHER(explicitCastExpr);
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REGISTER_MATCHER(expr);
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REGISTER_MATCHER(exprWithCleanups);
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REGISTER_MATCHER(fieldDecl);
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REGISTER_MATCHER(floatLiteral);
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REGISTER_MATCHER(forEach);
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REGISTER_MATCHER(forEachConstructorInitializer);
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REGISTER_MATCHER(forEachDescendant);
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REGISTER_MATCHER(forEachSwitchCase);
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REGISTER_MATCHER(forField);
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REGISTER_MATCHER(forRangeStmt);
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REGISTER_MATCHER(forStmt);
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REGISTER_MATCHER(friendDecl);
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REGISTER_MATCHER(functionDecl);
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REGISTER_MATCHER(functionTemplateDecl);
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REGISTER_MATCHER(functionType);
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REGISTER_MATCHER(functionalCastExpr);
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REGISTER_MATCHER(gotoStmt);
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REGISTER_MATCHER(has);
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REGISTER_MATCHER(hasAncestor);
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REGISTER_MATCHER(hasAnyArgument);
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REGISTER_MATCHER(hasAnyConstructorInitializer);
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REGISTER_MATCHER(hasAnyParameter);
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REGISTER_MATCHER(hasAnySubstatement);
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REGISTER_MATCHER(hasAnyTemplateArgument);
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REGISTER_MATCHER(hasAnyUsingShadowDecl);
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REGISTER_MATCHER(hasArgument);
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REGISTER_MATCHER(hasArgumentOfType);
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REGISTER_MATCHER(hasBase);
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REGISTER_MATCHER(hasBody);
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REGISTER_MATCHER(hasCanonicalType);
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REGISTER_MATCHER(hasCaseConstant);
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REGISTER_MATCHER(hasCondition);
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REGISTER_MATCHER(hasConditionVariableStatement);
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REGISTER_MATCHER(hasDeclContext);
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REGISTER_MATCHER(hasDeclaration);
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REGISTER_MATCHER(hasDeducedType);
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REGISTER_MATCHER(hasDescendant);
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REGISTER_MATCHER(hasDestinationType);
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REGISTER_MATCHER(hasEitherOperand);
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REGISTER_MATCHER(hasElementType);
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REGISTER_MATCHER(hasFalseExpression);
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REGISTER_MATCHER(hasGlobalStorage);
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REGISTER_MATCHER(hasImplicitDestinationType);
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REGISTER_MATCHER(hasIncrement);
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REGISTER_MATCHER(hasIndex);
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REGISTER_MATCHER(hasInitializer);
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REGISTER_MATCHER(hasLHS);
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REGISTER_MATCHER(hasLocalQualifiers);
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REGISTER_MATCHER(hasLocalStorage);
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REGISTER_MATCHER(hasLoopInit);
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REGISTER_MATCHER(hasMethod);
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REGISTER_MATCHER(hasName);
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REGISTER_MATCHER(hasObjectExpression);
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REGISTER_MATCHER(hasOperatorName);
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REGISTER_MATCHER(hasOverloadedOperatorName);
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REGISTER_MATCHER(hasParameter);
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REGISTER_MATCHER(hasParent);
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REGISTER_MATCHER(hasQualifier);
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REGISTER_MATCHER(hasRHS);
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REGISTER_MATCHER(hasSingleDecl);
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REGISTER_MATCHER(hasSize);
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REGISTER_MATCHER(hasSizeExpr);
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REGISTER_MATCHER(hasSourceExpression);
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REGISTER_MATCHER(hasTargetDecl);
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REGISTER_MATCHER(hasTemplateArgument);
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REGISTER_MATCHER(hasTrueExpression);
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REGISTER_MATCHER(hasTypeLoc);
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REGISTER_MATCHER(hasUnaryOperand);
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REGISTER_MATCHER(hasValueType);
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REGISTER_MATCHER(ifStmt);
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REGISTER_MATCHER(ignoringImpCasts);
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REGISTER_MATCHER(ignoringParenCasts);
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REGISTER_MATCHER(ignoringParenImpCasts);
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REGISTER_MATCHER(implicitCastExpr);
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REGISTER_MATCHER(incompleteArrayType);
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REGISTER_MATCHER(initListExpr);
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REGISTER_MATCHER(innerType);
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REGISTER_MATCHER(integerLiteral);
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REGISTER_MATCHER(isArrow);
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REGISTER_MATCHER(isConst);
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REGISTER_MATCHER(isConstQualified);
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REGISTER_MATCHER(isDefinition);
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REGISTER_MATCHER(isExplicitTemplateSpecialization);
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REGISTER_MATCHER(isExpr);
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REGISTER_MATCHER(isExternC);
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REGISTER_MATCHER(isImplicit);
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REGISTER_MATCHER(isInteger);
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REGISTER_MATCHER(isListInitialization);
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REGISTER_MATCHER(isOverride);
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REGISTER_MATCHER(isPrivate);
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REGISTER_MATCHER(isProtected);
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REGISTER_MATCHER(isPublic);
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REGISTER_MATCHER(isTemplateInstantiation);
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REGISTER_MATCHER(isVirtual);
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REGISTER_MATCHER(isWritten);
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REGISTER_MATCHER(lValueReferenceType);
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REGISTER_MATCHER(labelStmt);
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REGISTER_MATCHER(lambdaExpr);
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REGISTER_MATCHER(matchesName);
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REGISTER_MATCHER(materializeTemporaryExpr);
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REGISTER_MATCHER(member);
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REGISTER_MATCHER(memberCallExpr);
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REGISTER_MATCHER(memberExpr);
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REGISTER_MATCHER(memberPointerType);
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REGISTER_MATCHER(methodDecl);
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REGISTER_MATCHER(namedDecl);
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REGISTER_MATCHER(namesType);
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REGISTER_MATCHER(namespaceDecl);
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REGISTER_MATCHER(nestedNameSpecifier);
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REGISTER_MATCHER(nestedNameSpecifierLoc);
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REGISTER_MATCHER(newExpr);
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REGISTER_MATCHER(nullPtrLiteralExpr);
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REGISTER_MATCHER(nullStmt);
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REGISTER_MATCHER(ofClass);
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REGISTER_MATCHER(on);
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REGISTER_MATCHER(onImplicitObjectArgument);
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REGISTER_MATCHER(operatorCallExpr);
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REGISTER_MATCHER(parameterCountIs);
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REGISTER_MATCHER(parenType);
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REGISTER_MATCHER(parmVarDecl);
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REGISTER_MATCHER(pointee);
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REGISTER_MATCHER(pointerType);
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REGISTER_MATCHER(qualType);
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REGISTER_MATCHER(rValueReferenceType);
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REGISTER_MATCHER(recordDecl);
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REGISTER_MATCHER(recordType);
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REGISTER_MATCHER(referenceType);
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REGISTER_MATCHER(refersToDeclaration);
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REGISTER_MATCHER(refersToType);
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REGISTER_MATCHER(reinterpretCastExpr);
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REGISTER_MATCHER(returnStmt);
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REGISTER_MATCHER(returns);
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REGISTER_MATCHER(sizeOfExpr);
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REGISTER_MATCHER(specifiesNamespace);
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REGISTER_MATCHER(specifiesType);
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REGISTER_MATCHER(specifiesTypeLoc);
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REGISTER_MATCHER(statementCountIs);
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REGISTER_MATCHER(staticCastExpr);
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REGISTER_MATCHER(stmt);
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REGISTER_MATCHER(stringLiteral);
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REGISTER_MATCHER(switchCase);
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REGISTER_MATCHER(switchStmt);
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REGISTER_MATCHER(templateSpecializationType);
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REGISTER_MATCHER(temporaryObjectExpr);
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REGISTER_MATCHER(thisExpr);
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REGISTER_MATCHER(throughUsingDecl);
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REGISTER_MATCHER(throwExpr);
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REGISTER_MATCHER(to);
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REGISTER_MATCHER(tryStmt);
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REGISTER_MATCHER(type);
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REGISTER_MATCHER(typeLoc);
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REGISTER_MATCHER(typedefType);
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REGISTER_MATCHER(unaryExprOrTypeTraitExpr);
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REGISTER_MATCHER(unaryOperator);
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REGISTER_MATCHER(unaryTransformType);
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REGISTER_MATCHER(unless);
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REGISTER_MATCHER(unresolvedConstructExpr);
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REGISTER_MATCHER(unresolvedUsingValueDecl);
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REGISTER_MATCHER(userDefinedLiteral);
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REGISTER_MATCHER(usingDecl);
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REGISTER_MATCHER(varDecl);
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REGISTER_MATCHER(variableArrayType);
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REGISTER_MATCHER(whileStmt);
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REGISTER_MATCHER(withInitializer);
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}
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RegistryMaps::~RegistryMaps() {
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for (ConstructorMap::iterator it = Constructors.begin(),
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end = Constructors.end();
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it != end; ++it) {
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delete it->second;
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}
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}
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static llvm::ManagedStatic<RegistryMaps> RegistryData;
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} // anonymous namespace
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// static
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llvm::Optional<MatcherCtor> Registry::lookupMatcherCtor(StringRef MatcherName) {
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ConstructorMap::const_iterator it =
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RegistryData->constructors().find(MatcherName);
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return it == RegistryData->constructors().end()
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? llvm::Optional<MatcherCtor>()
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: it->second;
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}
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namespace {
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llvm::raw_ostream &operator<<(llvm::raw_ostream &OS,
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const std::set<ASTNodeKind> &KS) {
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unsigned Count = 0;
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for (std::set<ASTNodeKind>::const_iterator I = KS.begin(), E = KS.end();
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I != E; ++I) {
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if (I != KS.begin())
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OS << "|";
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if (Count++ == 3) {
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OS << "...";
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break;
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}
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OS << *I;
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}
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return OS;
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}
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} // namespace
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std::vector<ArgKind> Registry::getAcceptedCompletionTypes(
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ArrayRef<std::pair<MatcherCtor, unsigned>> Context) {
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ASTNodeKind InitialTypes[] = {
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ASTNodeKind::getFromNodeKind<Decl>(),
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ASTNodeKind::getFromNodeKind<QualType>(),
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ASTNodeKind::getFromNodeKind<Type>(),
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ASTNodeKind::getFromNodeKind<Stmt>(),
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ASTNodeKind::getFromNodeKind<NestedNameSpecifier>(),
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ASTNodeKind::getFromNodeKind<NestedNameSpecifierLoc>(),
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ASTNodeKind::getFromNodeKind<TypeLoc>()};
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// Starting with the above seed of acceptable top-level matcher types, compute
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// the acceptable type set for the argument indicated by each context element.
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std::set<ArgKind> TypeSet(std::begin(InitialTypes), std::end(InitialTypes));
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for (const auto &CtxEntry : Context) {
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MatcherCtor Ctor = CtxEntry.first;
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unsigned ArgNumber = CtxEntry.second;
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std::vector<ArgKind> NextTypeSet;
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for (const ArgKind &Kind : TypeSet) {
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if (Kind.getArgKind() == Kind.AK_Matcher &&
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Ctor->isConvertibleTo(Kind.getMatcherKind()) &&
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(Ctor->isVariadic() || ArgNumber < Ctor->getNumArgs()))
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Ctor->getArgKinds(Kind.getMatcherKind(), ArgNumber, NextTypeSet);
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}
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TypeSet.clear();
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TypeSet.insert(NextTypeSet.begin(), NextTypeSet.end());
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}
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return std::vector<ArgKind>(TypeSet.begin(), TypeSet.end());
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}
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std::vector<MatcherCompletion>
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Registry::getMatcherCompletions(ArrayRef<ArgKind> AcceptedTypes) {
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std::vector<MatcherCompletion> Completions;
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// Search the registry for acceptable matchers.
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for (ConstructorMap::const_iterator I = RegistryData->constructors().begin(),
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E = RegistryData->constructors().end();
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I != E; ++I) {
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std::set<ASTNodeKind> RetKinds;
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unsigned NumArgs = I->second->isVariadic() ? 1 : I->second->getNumArgs();
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bool IsPolymorphic = I->second->isPolymorphic();
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std::vector<std::vector<ArgKind>> ArgsKinds(NumArgs);
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unsigned MaxSpecificity = 0;
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for (const ArgKind& Kind : AcceptedTypes) {
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if (Kind.getArgKind() != Kind.AK_Matcher)
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continue;
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unsigned Specificity;
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ASTNodeKind LeastDerivedKind;
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if (I->second->isConvertibleTo(Kind.getMatcherKind(), &Specificity,
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&LeastDerivedKind)) {
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if (MaxSpecificity < Specificity)
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MaxSpecificity = Specificity;
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RetKinds.insert(LeastDerivedKind);
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for (unsigned Arg = 0; Arg != NumArgs; ++Arg)
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I->second->getArgKinds(Kind.getMatcherKind(), Arg, ArgsKinds[Arg]);
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if (IsPolymorphic)
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break;
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}
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}
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if (!RetKinds.empty() && MaxSpecificity > 0) {
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std::string Decl;
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llvm::raw_string_ostream OS(Decl);
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if (IsPolymorphic) {
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OS << "Matcher<T> " << I->first() << "(Matcher<T>";
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} else {
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OS << "Matcher<" << RetKinds << "> " << I->first() << "(";
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for (const std::vector<ArgKind> &Arg : ArgsKinds) {
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if (&Arg != &ArgsKinds[0])
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OS << ", ";
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// This currently assumes that a matcher may not overload a
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// non-matcher, and all non-matcher overloads have identical
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// arguments.
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if (Arg[0].getArgKind() == ArgKind::AK_Matcher) {
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std::set<ASTNodeKind> MatcherKinds;
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std::transform(Arg.begin(), Arg.end(),
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std::inserter(MatcherKinds, MatcherKinds.end()),
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std::mem_fun_ref(&ArgKind::getMatcherKind));
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OS << "Matcher<" << MatcherKinds << ">";
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} else {
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OS << Arg[0].asString();
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}
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}
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}
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if (I->second->isVariadic())
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OS << "...";
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OS << ")";
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std::string TypedText = I->first();
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TypedText += "(";
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if (ArgsKinds.empty())
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TypedText += ")";
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else if (ArgsKinds[0][0].getArgKind() == ArgKind::AK_String)
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TypedText += "\"";
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Completions.emplace_back(TypedText, OS.str(), MaxSpecificity);
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}
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}
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return Completions;
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}
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// static
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VariantMatcher Registry::constructMatcher(MatcherCtor Ctor,
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const SourceRange &NameRange,
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ArrayRef<ParserValue> Args,
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Diagnostics *Error) {
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return Ctor->create(NameRange, Args, Error);
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}
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// static
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VariantMatcher Registry::constructBoundMatcher(MatcherCtor Ctor,
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const SourceRange &NameRange,
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StringRef BindID,
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ArrayRef<ParserValue> Args,
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Diagnostics *Error) {
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VariantMatcher Out = constructMatcher(Ctor, NameRange, Args, Error);
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if (Out.isNull()) return Out;
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llvm::Optional<DynTypedMatcher> Result = Out.getSingleMatcher();
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if (Result.hasValue()) {
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llvm::Optional<DynTypedMatcher> Bound = Result->tryBind(BindID);
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if (Bound.hasValue()) {
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return VariantMatcher::SingleMatcher(*Bound);
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}
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}
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Error->addError(NameRange, Error->ET_RegistryNotBindable);
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|
return VariantMatcher();
|
|
}
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|
|
|
} // namespace dynamic
|
|
} // namespace ast_matchers
|
|
} // namespace clang
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