forked from OSchip/llvm-project
289 lines
9.5 KiB
C++
289 lines
9.5 KiB
C++
//===--- ASTDumper.cpp - Dumping implementation for ASTs ------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the AST dump methods, which dump out the
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// AST in a form that exposes type details and other fields.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/ASTDumper.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/DeclLookups.h"
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#include "clang/AST/JSONNodeDumper.h"
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#include "clang/Basic/Builtins.h"
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#include "clang/Basic/Module.h"
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#include "clang/Basic/SourceManager.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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using namespace clang::comments;
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void ASTDumper::dumpLookups(const DeclContext *DC, bool DumpDecls) {
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NodeDumper.AddChild([=] {
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OS << "StoredDeclsMap ";
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NodeDumper.dumpBareDeclRef(cast<Decl>(DC));
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const DeclContext *Primary = DC->getPrimaryContext();
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if (Primary != DC) {
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OS << " primary";
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NodeDumper.dumpPointer(cast<Decl>(Primary));
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}
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bool HasUndeserializedLookups = Primary->hasExternalVisibleStorage();
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auto Range = getDeserialize()
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? Primary->lookups()
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: Primary->noload_lookups(/*PreserveInternalState=*/true);
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for (auto I = Range.begin(), E = Range.end(); I != E; ++I) {
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DeclarationName Name = I.getLookupName();
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DeclContextLookupResult R = *I;
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NodeDumper.AddChild([=] {
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OS << "DeclarationName ";
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{
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ColorScope Color(OS, ShowColors, DeclNameColor);
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OS << '\'' << Name << '\'';
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}
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for (DeclContextLookupResult::iterator RI = R.begin(), RE = R.end();
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RI != RE; ++RI) {
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NodeDumper.AddChild([=] {
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NodeDumper.dumpBareDeclRef(*RI);
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if (!(*RI)->isUnconditionallyVisible())
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OS << " hidden";
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// If requested, dump the redecl chain for this lookup.
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if (DumpDecls) {
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// Dump earliest decl first.
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std::function<void(Decl *)> DumpWithPrev = [&](Decl *D) {
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if (Decl *Prev = D->getPreviousDecl())
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DumpWithPrev(Prev);
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Visit(D);
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};
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DumpWithPrev(*RI);
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}
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});
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}
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});
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}
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if (HasUndeserializedLookups) {
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NodeDumper.AddChild([=] {
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ColorScope Color(OS, ShowColors, UndeserializedColor);
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OS << "<undeserialized lookups>";
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});
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}
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});
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}
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template <typename SpecializationDecl>
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void ASTDumper::dumpTemplateDeclSpecialization(const SpecializationDecl *D,
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bool DumpExplicitInst,
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bool DumpRefOnly) {
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bool DumpedAny = false;
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for (const auto *RedeclWithBadType : D->redecls()) {
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// FIXME: The redecls() range sometimes has elements of a less-specific
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// type. (In particular, ClassTemplateSpecializationDecl::redecls() gives
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// us TagDecls, and should give CXXRecordDecls).
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auto *Redecl = dyn_cast<SpecializationDecl>(RedeclWithBadType);
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if (!Redecl) {
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// Found the injected-class-name for a class template. This will be dumped
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// as part of its surrounding class so we don't need to dump it here.
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assert(isa<CXXRecordDecl>(RedeclWithBadType) &&
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"expected an injected-class-name");
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continue;
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}
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switch (Redecl->getTemplateSpecializationKind()) {
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case TSK_ExplicitInstantiationDeclaration:
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case TSK_ExplicitInstantiationDefinition:
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if (!DumpExplicitInst)
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break;
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LLVM_FALLTHROUGH;
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case TSK_Undeclared:
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case TSK_ImplicitInstantiation:
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if (DumpRefOnly)
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NodeDumper.dumpDeclRef(Redecl);
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else
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Visit(Redecl);
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DumpedAny = true;
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break;
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case TSK_ExplicitSpecialization:
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break;
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}
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}
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// Ensure we dump at least one decl for each specialization.
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if (!DumpedAny)
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NodeDumper.dumpDeclRef(D);
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}
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template <typename TemplateDecl>
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void ASTDumper::dumpTemplateDecl(const TemplateDecl *D, bool DumpExplicitInst) {
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dumpTemplateParameters(D->getTemplateParameters());
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Visit(D->getTemplatedDecl());
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for (const auto *Child : D->specializations())
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dumpTemplateDeclSpecialization(Child, DumpExplicitInst,
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!D->isCanonicalDecl());
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}
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void ASTDumper::VisitFunctionTemplateDecl(const FunctionTemplateDecl *D) {
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// FIXME: We don't add a declaration of a function template specialization
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// to its context when it's explicitly instantiated, so dump explicit
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// instantiations when we dump the template itself.
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dumpTemplateDecl(D, true);
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}
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void ASTDumper::VisitClassTemplateDecl(const ClassTemplateDecl *D) {
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dumpTemplateDecl(D, false);
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}
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void ASTDumper::VisitVarTemplateDecl(const VarTemplateDecl *D) {
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dumpTemplateDecl(D, false);
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}
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//===----------------------------------------------------------------------===//
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// Type method implementations
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//===----------------------------------------------------------------------===//
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void QualType::dump(const char *msg) const {
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if (msg)
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llvm::errs() << msg << ": ";
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dump();
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}
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LLVM_DUMP_METHOD void QualType::dump() const {
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ASTDumper Dumper(llvm::errs(), /*ShowColors=*/false);
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Dumper.Visit(*this);
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}
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LLVM_DUMP_METHOD void QualType::dump(llvm::raw_ostream &OS,
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const ASTContext &Context) const {
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ASTDumper Dumper(OS, Context, Context.getDiagnostics().getShowColors());
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Dumper.Visit(*this);
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}
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LLVM_DUMP_METHOD void Type::dump() const { QualType(this, 0).dump(); }
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LLVM_DUMP_METHOD void Type::dump(llvm::raw_ostream &OS,
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const ASTContext &Context) const {
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QualType(this, 0).dump(OS, Context);
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}
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//===----------------------------------------------------------------------===//
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// Decl method implementations
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//===----------------------------------------------------------------------===//
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LLVM_DUMP_METHOD void Decl::dump() const { dump(llvm::errs()); }
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LLVM_DUMP_METHOD void Decl::dump(raw_ostream &OS, bool Deserialize,
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ASTDumpOutputFormat Format) const {
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ASTContext &Ctx = getASTContext();
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const SourceManager &SM = Ctx.getSourceManager();
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if (ADOF_JSON == Format) {
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JSONDumper P(OS, SM, Ctx, Ctx.getPrintingPolicy(),
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&Ctx.getCommentCommandTraits());
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(void)Deserialize; // FIXME?
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P.Visit(this);
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} else {
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ASTDumper P(OS, Ctx, Ctx.getDiagnostics().getShowColors());
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P.setDeserialize(Deserialize);
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P.Visit(this);
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}
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}
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LLVM_DUMP_METHOD void Decl::dumpColor() const {
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const ASTContext &Ctx = getASTContext();
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ASTDumper P(llvm::errs(), Ctx, /*ShowColors=*/true);
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P.Visit(this);
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}
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LLVM_DUMP_METHOD void DeclContext::dumpLookups() const {
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dumpLookups(llvm::errs());
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}
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LLVM_DUMP_METHOD void DeclContext::dumpLookups(raw_ostream &OS,
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bool DumpDecls,
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bool Deserialize) const {
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const DeclContext *DC = this;
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while (!DC->isTranslationUnit())
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DC = DC->getParent();
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const ASTContext &Ctx = cast<TranslationUnitDecl>(DC)->getASTContext();
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ASTDumper P(OS, Ctx, Ctx.getDiagnostics().getShowColors());
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P.setDeserialize(Deserialize);
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P.dumpLookups(this, DumpDecls);
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}
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//===----------------------------------------------------------------------===//
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// Stmt method implementations
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//===----------------------------------------------------------------------===//
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LLVM_DUMP_METHOD void Stmt::dump() const {
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ASTDumper P(llvm::errs(), /*ShowColors=*/false);
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P.Visit(this);
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}
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LLVM_DUMP_METHOD void Stmt::dump(raw_ostream &OS,
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const ASTContext &Context) const {
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ASTDumper P(OS, Context, Context.getDiagnostics().getShowColors());
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P.Visit(this);
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}
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LLVM_DUMP_METHOD void Stmt::dumpColor() const {
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ASTDumper P(llvm::errs(), /*ShowColors=*/true);
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P.Visit(this);
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}
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//===----------------------------------------------------------------------===//
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// Comment method implementations
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//===----------------------------------------------------------------------===//
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LLVM_DUMP_METHOD void Comment::dump() const {
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const auto *FC = dyn_cast<FullComment>(this);
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if (!FC)
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return;
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ASTDumper Dumper(llvm::errs(), /*ShowColors=*/false);
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Dumper.Visit(FC, FC);
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}
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LLVM_DUMP_METHOD void Comment::dump(raw_ostream &OS,
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const ASTContext &Context) const {
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const auto *FC = dyn_cast<FullComment>(this);
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if (!FC)
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return;
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ASTDumper Dumper(OS, Context, Context.getDiagnostics().getShowColors());
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Dumper.Visit(FC, FC);
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}
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LLVM_DUMP_METHOD void Comment::dumpColor() const {
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const auto *FC = dyn_cast<FullComment>(this);
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if (!FC)
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return;
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ASTDumper Dumper(llvm::errs(), /*ShowColors=*/true);
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Dumper.Visit(FC, FC);
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}
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//===----------------------------------------------------------------------===//
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// APValue method implementations
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//===----------------------------------------------------------------------===//
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LLVM_DUMP_METHOD void APValue::dump() const {
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ASTDumper Dumper(llvm::errs(), /*ShowColors=*/false);
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Dumper.Visit(*this, /*Ty=*/QualType());
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}
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LLVM_DUMP_METHOD void APValue::dump(raw_ostream &OS,
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const ASTContext &Context) const {
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ASTDumper Dumper(llvm::errs(), Context,
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Context.getDiagnostics().getShowColors());
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Dumper.Visit(*this, /*Ty=*/Context.getPointerType(Context.CharTy));
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}
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