[torque] Add helpers for C++ code generation
Change-Id: I75a4a2af4bbe9d495d583b13fb6d885d8509c2b8 Bug: v8:7793 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1611797 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by: Simon Zünd <szuend@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#61491}
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@ -2706,13 +2706,73 @@ void ImplementationVisitor::Visit(Declarable* declarable) {
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}
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}
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void ImplementationVisitor::GenerateBuiltinDefinitions(std::string& file_name) {
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namespace {
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class IfDefScope {
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public:
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IfDefScope(std::ostream& os, std::string d) : os_(os), d_(std::move(d)) {
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os_ << "#ifdef " << d_ << "\n";
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}
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~IfDefScope() { os_ << "#endif // " << d_ << "\n"; }
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private:
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std::ostream& os_;
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std::string d_;
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};
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class NamespaceScope {
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public:
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NamespaceScope(std::ostream& os, std::string namespace_name)
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: os_(os), d_(std::move(namespace_name)) {
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os_ << "namespace " << d_ << " {\n";
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}
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~NamespaceScope() { os_ << "} // namespace " << d_ << "\n"; }
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private:
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std::ostream& os_;
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std::string d_;
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};
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class IncludeGuardScope {
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public:
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IncludeGuardScope(std::ostream& os, std::string file_name)
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: os_(os),
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d_("V8_GEN_TORQUE_GENERATED_" + CapifyStringWithUnderscores(file_name) +
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"_") {
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os_ << "#ifndef " << d_ << "\n";
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os_ << "#define " << d_ << "\n\n";
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}
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~IncludeGuardScope() { os_ << "#endif // " << d_ << "\n"; }
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private:
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std::ostream& os_;
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std::string d_;
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};
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class IncludeObjectMacros {
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public:
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explicit IncludeObjectMacros(std::ostream& os) : os_(os) {
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os_ << "\n// Has to be the last include (doesn't have include guards):\n"
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"#include \"src/objects/object-macros.h\"\n";
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}
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~IncludeObjectMacros() {
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os_ << "\n#include \"src/objects/object-macros-undef.h\"\n";
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}
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private:
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std::ostream& os_;
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};
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} // namespace
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void ImplementationVisitor::GenerateBuiltinDefinitions(
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const std::string& output_directory) {
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std::stringstream new_contents_stream;
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std::string file_name = "builtin-definitions-tq.h";
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{
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IncludeGuardScope include_guard(new_contents_stream, file_name);
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new_contents_stream
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<< "#ifndef V8_GEN_TORQUE_GENERATED_BUILTIN_DEFINITIONS_TQ_H_\n"
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"#define V8_GEN_TORQUE_GENERATED_BUILTIN_DEFINITIONS_TQ_H_\n"
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"\n"
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"#define BUILTIN_LIST_FROM_TORQUE(CPP, API, TFJ, TFC, TFS, TFH, ASM) "
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<< "\n"
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"#define BUILTIN_LIST_FROM_TORQUE(CPP, API, TFJ, TFC, TFS, TFH, "
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"ASM) "
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"\\\n";
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for (auto& declarable : GlobalContext::AllDeclarables()) {
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Builtin* builtin = Builtin::DynamicCast(declarable.get());
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@ -2754,7 +2814,8 @@ void ImplementationVisitor::GenerateBuiltinDefinitions(std::string& file_name) {
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new_contents_stream
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<< "#define TORQUE_FUNCTION_POINTER_TYPE_TO_BUILTIN_MAP(V) \\\n";
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for (const BuiltinPointerType* type : TypeOracle::AllBuiltinPointerTypes()) {
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for (const BuiltinPointerType* type :
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TypeOracle::AllBuiltinPointerTypes()) {
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Builtin* example_builtin =
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Declarations::FindSomeInternalBuiltinWithType(type);
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if (!example_builtin) {
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@ -2766,12 +2827,10 @@ void ImplementationVisitor::GenerateBuiltinDefinitions(std::string& file_name) {
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<< example_builtin->ExternalName() << ")\\\n";
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}
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new_contents_stream << "\n";
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new_contents_stream
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<< "#endif // V8_GEN_TORQUE_GENERATED_BUILTIN_DEFINITIONS_TQ_H_\n";
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}
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std::string new_contents(new_contents_stream.str());
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ReplaceFileContentsIfDifferent(file_name, new_contents);
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ReplaceFileContentsIfDifferent(output_directory + "/" + file_name,
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new_contents);
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}
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namespace {
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@ -2850,9 +2909,9 @@ void CompleteFieldSection(FieldSectionType* section,
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void ImplementationVisitor::GenerateClassFieldOffsets(
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const std::string& output_directory) {
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std::stringstream new_contents_stream;
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new_contents_stream << "#ifndef V8_GEN_TORQUE_GENERATED_FIELD_OFFSETS_TQ_H_\n"
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"#define V8_GEN_TORQUE_GENERATED_FIELD_OFFSETS_TQ_H_\n"
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"\n\n";
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std::string file_name = "field-offsets-tq.h";
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{
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IncludeGuardScope include_guard(new_contents_stream, file_name);
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for (auto i : GlobalContext::GetClasses()) {
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ClassType* type = i.second;
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@ -2860,9 +2919,9 @@ void ImplementationVisitor::GenerateClassFieldOffsets(
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// TODO(danno): Ideally (and we've got several core V8 dev's feedback
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// supporting this), Torque should generate the constants for the offsets
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// directly and not go through the existing layer of macros, which actually
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// currently just serves to additionally obfuscate where these values come
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// from.
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// directly and not go through the existing layer of macros, which
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// actually currently just serves to additionally obfuscate where these
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// values come from.
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new_contents_stream << "#define ";
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new_contents_stream << "TORQUE_GENERATED_"
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<< CapifyStringWithUnderscores(i.first)
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@ -2899,7 +2958,8 @@ void ImplementationVisitor::GenerateClassFieldOffsets(
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ProcessFieldInSection(§ion, &completed_sections,
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FieldSectionType::kNoSection, &new_contents_stream);
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CompleteFieldSection(§ion, &completed_sections,
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FieldSectionType::kWeakSection, &new_contents_stream);
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FieldSectionType::kWeakSection,
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&new_contents_stream);
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CompleteFieldSection(§ion, &completed_sections,
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FieldSectionType::kStrongSection,
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&new_contents_stream);
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@ -2907,27 +2967,25 @@ void ImplementationVisitor::GenerateClassFieldOffsets(
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new_contents_stream << "V(kSize, 0) \\\n";
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new_contents_stream << "\n";
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}
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new_contents_stream
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<< "\n#endif // V8_GEN_TORQUE_GENERATED_FIELD_OFFSETS_TQ_H_\n";
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const std::string output_header_path =
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output_directory + "/field-offsets-tq.h";
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}
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const std::string output_header_path = output_directory + "/" + file_name;
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std::string new_contents(new_contents_stream.str());
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ReplaceFileContentsIfDifferent(output_header_path, new_contents);
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}
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void ImplementationVisitor::GeneratePrintDefinitions(std::string& file_name) {
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void ImplementationVisitor::GeneratePrintDefinitions(
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const std::string& output_directory) {
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std::stringstream new_contents_stream;
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new_contents_stream << "#ifdef OBJECT_PRINT\n\n";
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std::string file_name = "objects-printer-tq.cc";
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{
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IfDefScope object_print(new_contents_stream, "OBJECT_PRINT");
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new_contents_stream << "#include \"src/objects.h\"\n\n";
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new_contents_stream << "#include <iosfwd>\n\n";
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new_contents_stream << "#include \"src/objects/struct-inl.h\"\n\n";
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new_contents_stream << "namespace v8 {\n";
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new_contents_stream << "namespace internal {\n\n";
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NamespaceScope namespace_v8(new_contents_stream, "v8");
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NamespaceScope namespace_internal(new_contents_stream, "internal");
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for (auto i : GlobalContext::GetClasses()) {
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ClassType* type = i.second;
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@ -2949,14 +3007,11 @@ void ImplementationVisitor::GeneratePrintDefinitions(std::string& file_name) {
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new_contents_stream << " os << \"\\n\";\n";
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new_contents_stream << "}\n\n";
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}
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new_contents_stream << "} // namespace internal\"\n";
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new_contents_stream << "} // namespace v8\"\n";
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new_contents_stream << "\n#endif // OBJECT_PRINT\n\n";
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}
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std::string new_contents(new_contents_stream.str());
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ReplaceFileContentsIfDifferent(file_name, new_contents);
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ReplaceFileContentsIfDifferent(output_directory + "/" + file_name,
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new_contents);
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}
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namespace {
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@ -3033,16 +3088,13 @@ void GenerateClassFieldVerifier(const std::string& class_name,
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void ImplementationVisitor::GenerateClassVerifiers(
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const std::string& output_directory) {
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const char* file_name = "class-verifiers-tq";
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std::string file_name = "class-verifiers-tq";
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std::stringstream h_contents;
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std::stringstream cc_contents;
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h_contents << "#ifndef V8_GEN_TORQUE_GENERATED_CLASS_VERIFIERS_TQ_H_\n"
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"#define V8_GEN_TORQUE_GENERATED_CLASS_VERIFIERS_TQ_H_\n"
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"\n";
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const char* enabled_check = "\n#ifdef VERIFY_HEAP\n";
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h_contents << enabled_check;
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cc_contents << enabled_check;
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{
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IncludeGuardScope include_guard(h_contents, file_name + ".h");
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IfDefScope verify_heap_h(h_contents, "VERIFY_HEAP");
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IfDefScope verify_heap_cc(cc_contents, "VERIFY_HEAP");
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cc_contents << "\n#include \"src/objects.h\"\n";
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@ -3050,16 +3102,14 @@ void ImplementationVisitor::GenerateClassVerifiers(
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cc_contents << "#include " << StringLiteralQuote(include_path) << "\n";
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}
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cc_contents << "#include \"torque-generated/" << file_name << ".h\"\n";
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cc_contents
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<< "\n// Has to be the last include (doesn't have include guards):\n"
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"#include \"src/objects/object-macros.h\"\n";
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const char* namespaces =
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"\nnamespace v8 {\n"
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"namespace internal {\n"
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"\n";
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h_contents << namespaces;
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cc_contents << namespaces;
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IncludeObjectMacros object_macros(cc_contents);
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NamespaceScope namespace_v8_h(h_contents, "v8");
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NamespaceScope namespace_internal_h(h_contents, "internal");
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NamespaceScope namespace_v8_cc(cc_contents, "v8");
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NamespaceScope namespace_internal_cc(cc_contents, "internal");
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// Generate forward declarations to avoid including any headers.
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h_contents << "class Isolate;\n";
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@ -3095,11 +3145,11 @@ void ImplementationVisitor::GenerateClassVerifiers(
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if (super_type) {
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std::string super_name = super_type->name();
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if (super_name == "HeapObject") {
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// Special case: HeapObjectVerify checks the Map type and dispatches to
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// more specific types, so calling it here would cause infinite
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// recursion. We could consider moving that behavior into a different
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// method to make the contract of *Verify methods more consistent, but
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// for now we'll just avoid the bad case.
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// Special case: HeapObjectVerify checks the Map type and dispatches
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// to more specific types, so calling it here would cause infinite
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// recursion. We could consider moving that behavior into a
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// different method to make the contract of *Verify methods more
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// consistent, but for now we'll just avoid the bad case.
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cc_contents << " " << super_name << "Verify(o, isolate);\n";
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} else {
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cc_contents << " o->" << super_name << "Verify(isolate);\n";
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@ -3119,21 +3169,7 @@ void ImplementationVisitor::GenerateClassVerifiers(
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}
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h_contents << "};\n";
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const char* end_namespaces =
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"\n} // namespace internal\n"
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"} // namespace v8\n";
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h_contents << end_namespaces;
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cc_contents << end_namespaces;
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cc_contents << "\n#include \"src/objects/object-macros-undef.h\"\n";
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const char* end_enabled_check = "\n#endif // VERIFY_HEAP\n";
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h_contents << end_enabled_check;
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cc_contents << end_enabled_check;
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h_contents << "\n#endif // V8_GEN_TORQUE_GENERATED_CLASS_VERIFIERS_TQ_H_\n";
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}
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ReplaceFileContentsIfDifferent(output_directory + "/" + file_name + ".h",
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h_contents.str());
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ReplaceFileContentsIfDifferent(output_directory + "/" + file_name + ".cc",
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@ -275,9 +275,9 @@ bool IsCompatibleSignature(const Signature& sig, const TypeVector& types,
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class ImplementationVisitor {
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public:
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void GenerateBuiltinDefinitions(std::string& file_name);
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void GenerateBuiltinDefinitions(const std::string& output_directory);
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void GenerateClassFieldOffsets(const std::string& output_directory);
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void GeneratePrintDefinitions(std::string& file_name);
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void GeneratePrintDefinitions(const std::string& output_directory);
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void GenerateClassVerifiers(const std::string& output_directory);
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VisitResult Visit(Expression* expr);
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@ -76,16 +76,9 @@ void CompileCurrentAst(TorqueCompilerOptions options) {
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std::string output_directory = options.output_directory;
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if (output_directory.length() != 0) {
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std::string output_header_path = output_directory;
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output_header_path += "/builtin-definitions-tq.h";
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implementation_visitor.GenerateBuiltinDefinitions(output_header_path);
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implementation_visitor.GenerateBuiltinDefinitions(output_directory);
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implementation_visitor.GenerateClassFieldOffsets(output_directory);
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std::string output_source_path =
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output_directory + "/objects-printer-tq.cc";
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implementation_visitor.GeneratePrintDefinitions(output_source_path);
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implementation_visitor.GeneratePrintDefinitions(output_directory);
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implementation_visitor.GenerateClassVerifiers(output_directory);
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for (Namespace* n : GlobalContext::Get().GetNamespaces()) {
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@ -217,6 +217,11 @@ std::string CapifyStringWithUnderscores(const std::string& camellified_string) {
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if (previousWasLower && isupper(current)) {
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result += "_";
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}
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if (current == '.' || current == '-') {
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result += "_";
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previousWasLower = false;
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continue;
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}
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result += toupper(current);
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previousWasLower = (islower(current));
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}
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