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Merge pull request #66 from cblichmann:master

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PiperOrigin-RevId: 339616485
Change-Id: Iaa427e0aa5712f36ae1c176bffbaf00b2b342373
This commit is contained in:
Copybara-Service 2020-10-29 00:46:47 -07:00
commit 8952d2ce04
1 changed files with 34 additions and 1 deletions
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35
sandboxed_api/tools/clang_generator/emitter.cc
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@ -26,6 +26,7 @@
#include "absl/strings/string_view.h"
#include "absl/strings/strip.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Type.h"
#include "clang/Format/Format.h"
#include "sandboxed_api/tools/clang_generator/diagnostics.h"
@ -180,6 +181,37 @@ std::vector<std::string> GetNamespacePath(const clang::TypeDecl* decl) {
return comps;
}
std::string PrintRecordTemplateArguments(const clang::CXXRecordDecl* record) {
const auto* template_inst_decl = record->getTemplateInstantiationPattern();
if (!template_inst_decl) {
return "";
}
const auto* template_decl = template_inst_decl->getDescribedClassTemplate();
if (!template_decl) {
return "";
}
const auto* template_params = template_decl->getTemplateParameters();
if (!template_params) {
return "";
}
std::vector<std::string> params;
params.reserve(template_params->size());
for (const auto& template_param : *template_params) {
if (const auto* p =
llvm::dyn_cast<clang::NonTypeTemplateParmDecl>(template_param)) {
// TODO(cblichmann): These types should be included by
// CollectRelatedTypes().
params.push_back(
p->getType().getDesugaredType(record->getASTContext()).getAsString());
} else { // Also covers template template parameters
params.push_back("typename");
}
absl::StrAppend(&params.back(), " /*",
std::string(template_param->getName()), "*/");
}
return absl::StrCat("template <", absl::StrJoin(params, ", "), ">");
}
// Serializes the given Clang AST declaration back into compilable source code.
std::string PrintAstDecl(const clang::Decl* decl) {
// TODO(cblichmann): Make types nicer
@ -188,7 +220,8 @@ std::string PrintAstDecl(const clang::Decl* decl) {
if (const auto* record = llvm::dyn_cast<clang::CXXRecordDecl>(decl)) {
// For C++ classes/structs, only emit a forward declaration.
return absl::StrCat(record->isClass() ? "class " : "struct ",
return absl::StrCat(PrintRecordTemplateArguments(record),
record->isClass() ? "class " : "struct ",
std::string(record->getName()));
}
std::string pretty;