/
GlobalState.cc
2019 lines (1752 loc) · 81.6 KB
/
GlobalState.cc
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#include "GlobalState.h"
#include "common/Timer.h"
#include "common/sort.h"
#include "core/Error.h"
#include "core/NameHash.h"
#include "core/Names.h"
#include "core/Names_gen.h"
#include "core/NullFlusher.h"
#include "core/Types.h"
#include "core/Unfreeze.h"
#include "core/errors/errors.h"
#include "core/hashing/hashing.h"
#include "core/lsp/Task.h"
#include "core/lsp/TypecheckEpochManager.h"
#include <utility>
#include "absl/strings/str_cat.h"
#include "absl/strings/str_split.h"
#include "core/ErrorQueue.h"
#include "core/errors/infer.h"
#include "main/pipeline/semantic_extension/SemanticExtension.h"
template class std::vector<std::pair<unsigned int, unsigned int>>;
template class std::shared_ptr<sorbet::core::GlobalState>;
template class std::unique_ptr<sorbet::core::GlobalState>;
using namespace std;
namespace sorbet::core {
namespace {
// Hash functions used to determine position in namesByHash.
inline unsigned int hashMixUnique(UniqueNameKind unk, unsigned int num, unsigned int rawId) {
return mix(mix(num, static_cast<u4>(unk)), rawId) * HASH_MULT2 + static_cast<u4>(NameKind::UNIQUE);
}
inline unsigned int hashMixConstant(unsigned int id) {
return id * HASH_MULT2 + static_cast<u4>(NameKind::CONSTANT);
}
inline unsigned int hashNameRef(const GlobalState &gs, NameRef nref) {
switch (nref.kind()) {
case NameKind::UTF8:
return _hash(nref.shortName(gs));
case NameKind::CONSTANT:
return hashMixConstant(nref.dataCnst(gs)->original.rawId());
case NameKind::UNIQUE: {
auto data = nref.dataUnique(gs);
return hashMixUnique(data->uniqueNameKind, data->num, data->original.rawId());
}
}
}
struct MethodBuilder {
GlobalState &gs;
MethodRef method;
MethodBuilder(GlobalState &gs, MethodRef m) : gs(gs), method(m) {}
MethodBuilder &defaultArg(NameRef name) {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, name);
arg.flags.isDefault = true;
return *this;
}
MethodBuilder &typedArg(NameRef name, TypePtr &&type) {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, name);
arg.type = std::move(type);
return *this;
}
MethodBuilder &arg(NameRef name) {
gs.enterMethodArgumentSymbol(Loc::none(), method, name);
return *this;
}
MethodBuilder &untypedArg(NameRef name) {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, name);
arg.type = Types::untyped(gs, method);
return *this;
}
MethodBuilder &repeatedArg(NameRef name) {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, name);
arg.flags.isRepeated = true;
return *this;
}
MethodBuilder &repeatedTypedArg(NameRef name, TypePtr &&type) {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, name);
arg.flags.isRepeated = true;
arg.type = std::move(type);
return *this;
}
MethodBuilder &repeatedUntypedArg(NameRef name) {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, name);
arg.flags.isRepeated = true;
arg.type = Types::untyped(gs, method);
return *this;
}
MethodBuilder &kwsplatArg(NameRef name) {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, name);
arg.flags.isKeyword = true;
arg.flags.isRepeated = true;
arg.type = Types::untyped(gs, method);
return *this;
}
MethodRef build() {
auto &arg = gs.enterMethodArgumentSymbol(Loc::none(), method, Names::blkArg());
arg.flags.isBlock = true;
return method;
}
MethodRef buildWithResult(TypePtr &&type) {
method.data(gs)->resultType = type;
return build();
}
MethodRef buildWithResultUntyped() {
return buildWithResult(Types::untyped(gs, method));
}
};
MethodBuilder enterMethod(GlobalState &gs, ClassOrModuleRef klass, NameRef name) {
return MethodBuilder{gs, gs.enterMethodSymbol(Loc::none(), klass, name)};
}
} // namespace
ClassOrModuleRef GlobalState::synthesizeClass(NameRef nameId, u4 superclass, bool isModule) {
// This can't use enterClass since there is a chicken and egg problem.
// These will be added to Symbols::root().members later.
ClassOrModuleRef symRef = ClassOrModuleRef(*this, classAndModules.size());
classAndModules.emplace_back();
SymbolData data = symRef.dataAllowingNone(*this); // allowing noSymbol is needed because this enters noSymbol.
data->name = nameId;
data->owner = Symbols::root();
data->flags = 0;
data->setClassOrModule();
data->setIsModule(isModule);
data->setSuperClass(ClassOrModuleRef(*this, superclass));
if (symRef.id() > Symbols::root().id()) {
Symbols::root().data(*this)->members()[nameId] = symRef;
}
return symRef;
}
atomic<int> globalStateIdCounter(1);
const int Symbols::MAX_PROC_ARITY;
GlobalState::GlobalState(shared_ptr<ErrorQueue> errorQueue)
: GlobalState(move(errorQueue), make_shared<lsp::TypecheckEpochManager>()) {}
GlobalState::GlobalState(shared_ptr<ErrorQueue> errorQueue, shared_ptr<lsp::TypecheckEpochManager> epochManager)
: GlobalState(move(errorQueue), move(epochManager), globalStateIdCounter.fetch_add(1)) {}
GlobalState::GlobalState(shared_ptr<ErrorQueue> errorQueue, shared_ptr<lsp::TypecheckEpochManager> epochManager,
int globalStateId)
: globalStateId(globalStateId), errorQueue(std::move(errorQueue)), lspQuery(lsp::Query::noQuery()),
epochManager(move(epochManager)) {
// Reserve memory in internal vectors for the contents of payload.
utf8Names.reserve(PAYLOAD_MAX_UTF8_NAME_COUNT);
constantNames.reserve(PAYLOAD_MAX_CONSTANT_NAME_COUNT);
uniqueNames.reserve(PAYLOAD_MAX_UNIQUE_NAME_COUNT);
classAndModules.reserve(PAYLOAD_MAX_CLASS_AND_MODULE_COUNT);
methods.reserve(PAYLOAD_MAX_METHOD_COUNT);
fields.reserve(PAYLOAD_MAX_FIELD_COUNT);
typeArguments.reserve(PAYLOAD_MAX_TYPE_ARGUMENT_COUNT);
typeMembers.reserve(PAYLOAD_MAX_TYPE_MEMBER_COUNT);
int namesByHashSize = nextPowerOfTwo(
2 * (PAYLOAD_MAX_UTF8_NAME_COUNT + PAYLOAD_MAX_CONSTANT_NAME_COUNT + PAYLOAD_MAX_UNIQUE_NAME_COUNT));
namesByHash.resize(namesByHashSize);
ENFORCE((namesByHashSize & (namesByHashSize - 1)) == 0, "namesByHashSize is not a power of 2");
}
unique_ptr<GlobalState> GlobalState::makeEmptyGlobalStateForHashing(spdlog::logger &logger) {
// Note: Private constructor.
unique_ptr<GlobalState> rv(
new GlobalState(make_shared<core::ErrorQueue>(logger, logger, make_shared<core::NullFlusher>()),
make_shared<lsp::TypecheckEpochManager>(), -1));
rv->initEmpty();
rv->silenceErrors = true;
return rv;
}
void GlobalState::initEmpty() {
UnfreezeFileTable fileTableAccess(*this);
UnfreezeNameTable nameTableAccess(*this);
UnfreezeSymbolTable symTableAccess(*this);
Names::registerNames(*this);
SymbolRef id;
id = synthesizeClass(core::Names::Constants::NoSymbol(), 0);
ENFORCE(id == Symbols::noSymbol());
id = enterMethodSymbol(Loc::none(), Symbols::noClassOrModule(), Names::noMethod());
ENFORCE(id == Symbols::noMethod());
id = enterFieldSymbol(Loc::none(), Symbols::noClassOrModule(), Names::noFieldOrStaticField());
ENFORCE(id == Symbols::noField());
id = enterTypeArgument(Loc::none(), Symbols::noMethod(), Names::Constants::NoTypeArgument(), Variance::CoVariant);
ENFORCE(id == Symbols::noTypeArgument());
id =
enterTypeMember(Loc::none(), Symbols::noClassOrModule(), Names::Constants::NoTypeMember(), Variance::CoVariant);
ENFORCE(id == Symbols::noTypeMember());
id = synthesizeClass(core::Names::Constants::Top(), 0);
ENFORCE(id == Symbols::top());
id = synthesizeClass(core::Names::Constants::Bottom(), 0);
ENFORCE(id == Symbols::bottom());
id = synthesizeClass(core::Names::Constants::Root(), 0);
ENFORCE(id == Symbols::root());
id = core::Symbols::root().data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::rootSingleton());
id = synthesizeClass(core::Names::Constants::Todo(), 0);
ENFORCE(id == Symbols::todo());
id = synthesizeClass(core::Names::Constants::Object(), Symbols::BasicObject().id());
ENFORCE(id == Symbols::Object());
id = synthesizeClass(core::Names::Constants::Integer());
ENFORCE(id == Symbols::Integer());
id = synthesizeClass(core::Names::Constants::Float());
ENFORCE(id == Symbols::Float());
id = synthesizeClass(core::Names::Constants::String());
ENFORCE(id == Symbols::String());
id = synthesizeClass(core::Names::Constants::Symbol());
ENFORCE(id == Symbols::Symbol());
id = synthesizeClass(core::Names::Constants::Array());
ENFORCE(id == Symbols::Array());
id = synthesizeClass(core::Names::Constants::Hash());
ENFORCE(id == Symbols::Hash());
id = synthesizeClass(core::Names::Constants::TrueClass());
ENFORCE(id == Symbols::TrueClass());
id = synthesizeClass(core::Names::Constants::FalseClass());
ENFORCE(id == Symbols::FalseClass());
id = synthesizeClass(core::Names::Constants::NilClass());
ENFORCE(id == Symbols::NilClass());
id = synthesizeClass(core::Names::Constants::Untyped(), 0);
ENFORCE(id == Symbols::untyped());
id = synthesizeClass(core::Names::Constants::Opus(), 0, true);
ENFORCE(id == Symbols::Opus());
id = synthesizeClass(core::Names::Constants::T(), Symbols::todo().id(), true);
ENFORCE(id == Symbols::T());
id = synthesizeClass(core::Names::Constants::Class(), 0);
ENFORCE(id == Symbols::Class());
id = synthesizeClass(core::Names::Constants::BasicObject(), 0);
ENFORCE(id == Symbols::BasicObject());
id = synthesizeClass(core::Names::Constants::Kernel(), 0, true);
ENFORCE(id == Symbols::Kernel());
id = synthesizeClass(core::Names::Constants::Range());
ENFORCE(id == Symbols::Range());
id = synthesizeClass(core::Names::Constants::Regexp());
ENFORCE(id == Symbols::Regexp());
id = synthesizeClass(core::Names::Constants::Magic());
ENFORCE(id == Symbols::Magic());
id = Symbols::Magic().data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::MagicSingleton());
id = synthesizeClass(core::Names::Constants::Module());
ENFORCE(id == Symbols::Module());
id = synthesizeClass(core::Names::Constants::StandardError());
ENFORCE(id == Symbols::StandardError());
id = synthesizeClass(core::Names::Constants::Complex());
ENFORCE(id == Symbols::Complex());
id = synthesizeClass(core::Names::Constants::Rational());
ENFORCE(id == Symbols::Rational());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Array());
ENFORCE(id == Symbols::T_Array());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Hash());
ENFORCE(id == Symbols::T_Hash());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Proc());
ENFORCE(id == Symbols::T_Proc());
id = synthesizeClass(core::Names::Constants::Proc());
ENFORCE(id == Symbols::Proc());
id = synthesizeClass(core::Names::Constants::Enumerable(), 0, true);
ENFORCE(id == Symbols::Enumerable());
id = synthesizeClass(core::Names::Constants::Set());
ENFORCE(id == Symbols::Set());
id = synthesizeClass(core::Names::Constants::Struct());
ENFORCE(id == Symbols::Struct());
id = synthesizeClass(core::Names::Constants::File());
ENFORCE(id == Symbols::File());
id = synthesizeClass(core::Names::Constants::Sorbet());
ENFORCE(id == Symbols::Sorbet());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet(), core::Names::Constants::Private());
ENFORCE(id == Symbols::Sorbet_Private());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private(), core::Names::Constants::Static());
ENFORCE(id == Symbols::Sorbet_Private_Static());
id = Symbols::Sorbet_Private_Static().data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::Sorbet_Private_StaticSingleton());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::StubModule());
ENFORCE(id == Symbols::StubModule());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::StubMixin());
ENFORCE(id == Symbols::StubMixin());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::StubSuperClass());
ENFORCE(id == Symbols::StubSuperClass());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Enumerable());
ENFORCE(id == Symbols::T_Enumerable());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Range());
ENFORCE(id == Symbols::T_Range());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Set());
ENFORCE(id == Symbols::T_Set());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::Void());
id.data(*this)->setIsModule(false);
ENFORCE(id == Symbols::void_());
id = synthesizeClass(core::Names::Constants::TypeAlias(), 0);
ENFORCE(id == Symbols::typeAliasTemp());
id = enterClassSymbol(Loc::none(), Symbols::T(), Names::Constants::Configuration());
ENFORCE(id == Symbols::T_Configuration());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Generic());
ENFORCE(id == Symbols::T_Generic());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::Tuple());
ENFORCE(id == Symbols::Tuple());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::Shape());
ENFORCE(id == Symbols::Shape());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::Subclasses());
ENFORCE(id == Symbols::Subclasses());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(),
core::Names::Constants::ImplicitModuleSuperclass());
ENFORCE(id == Symbols::Sorbet_Private_Static_ImplicitModuleSuperClass());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::ReturnTypeInference());
ENFORCE(id == Symbols::Sorbet_Private_Static_ReturnTypeInference());
MethodRef method =
enterMethod(*this, Symbols::Sorbet_Private_Static(), core::Names::guessedTypeTypeParameterHolder()).build();
ENFORCE(method == Symbols::Sorbet_Private_Static_ReturnTypeInference_guessed_type_type_parameter_holder());
auto typeArgument = enterTypeArgument(
Loc::none(), Symbols::Sorbet_Private_Static_ReturnTypeInference_guessed_type_type_parameter_holder(),
freshNameUnique(core::UniqueNameKind::TypeVarName, core::Names::Constants::InferredReturnType(), 1),
core::Variance::ContraVariant);
typeArgument.data(*this)->resultType = make_type<core::TypeVar>(typeArgument);
ENFORCE(
typeArgument ==
Symbols::Sorbet_Private_Static_ReturnTypeInference_guessed_type_type_parameter_holder_tparam_contravariant());
typeArgument = enterTypeArgument(
Loc::none(), Symbols::Sorbet_Private_Static_ReturnTypeInference_guessed_type_type_parameter_holder(),
freshNameUnique(core::UniqueNameKind::TypeVarName, core::Names::Constants::InferredArgumentType(), 1),
core::Variance::CoVariant);
typeArgument.data(*this)->resultType = make_type<core::TypeVar>(typeArgument);
ENFORCE(typeArgument ==
Symbols::Sorbet_Private_Static_ReturnTypeInference_guessed_type_type_parameter_holder_tparam_covariant());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Sig());
ENFORCE(id == Symbols::T_Sig());
// A magic non user-creatable class with methods to keep state between passes
id = enterFieldSymbol(Loc::none(), Symbols::Magic(), core::Names::Constants::UndeclaredFieldStub());
ENFORCE(id == Symbols::Magic_undeclaredFieldStub());
// Sorbet::Private::Static#badAliasMethodStub(*arg0 : T.untyped) => T.untyped
method = enterMethod(*this, Symbols::Sorbet_Private_Static(), core::Names::badAliasMethodStub())
.repeatedUntypedArg(Names::arg0())
.build();
ENFORCE(method == Symbols::Sorbet_Private_Static_badAliasMethodStub());
// T::Helpers
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Helpers());
ENFORCE(id == Symbols::T_Helpers());
// SigBuilder magic class
id = synthesizeClass(core::Names::Constants::DeclBuilderForProcs());
ENFORCE(id == Symbols::DeclBuilderForProcs());
id = Symbols::DeclBuilderForProcs().data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::DeclBuilderForProcsSingleton());
// Ruby 2.5 Hack
id = synthesizeClass(core::Names::Constants::Net(), 0, true);
ENFORCE(id == Symbols::Net());
id = enterClassSymbol(Loc::none(), Symbols::Net(), core::Names::Constants::IMAP());
Symbols::Net_IMAP().data(*this)->setIsModule(false);
ENFORCE(id == Symbols::Net_IMAP());
id = enterClassSymbol(Loc::none(), Symbols::Net(), core::Names::Constants::Protocol());
ENFORCE(id == Symbols::Net_Protocol());
Symbols::Net_Protocol().data(*this)->setIsModule(false);
id = enterClassSymbol(Loc::none(), Symbols::T_Sig(), core::Names::Constants::WithoutRuntime());
ENFORCE(id == Symbols::T_Sig_WithoutRuntime());
id = synthesizeClass(core::Names::Constants::Enumerator());
ENFORCE(id == Symbols::Enumerator());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Enumerator());
ENFORCE(id == Symbols::T_Enumerator());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Struct());
ENFORCE(id == Symbols::T_Struct());
id = synthesizeClass(core::Names::Constants::Singleton(), 0, true);
ENFORCE(id == Symbols::Singleton());
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Enum());
id.data(*this)->setIsModule(false);
ENFORCE(id == Symbols::T_Enum());
// T::Sig#sig
method = enterMethod(*this, Symbols::T_Sig(), Names::sig()).defaultArg(Names::arg0()).build();
ENFORCE(method == Symbols::sig());
// Enumerable::Lazy
id = enterClassSymbol(Loc::none(), Symbols::Enumerator(), core::Names::Constants::Lazy());
ENFORCE(id == Symbols::Enumerator_Lazy());
id = enterClassSymbol(Loc::none(), Symbols::T(), Names::Constants::Private());
ENFORCE(id == Symbols::T_Private());
id = enterClassSymbol(Loc::none(), Symbols::T_Private(), Names::Constants::Types());
ENFORCE(id == Symbols::T_Private_Types());
id = enterClassSymbol(Loc::none(), Symbols::T_Private_Types(), Names::Constants::Void());
id.data(*this)->setIsModule(false);
ENFORCE(id == Symbols::T_Private_Types_Void());
id = enterClassSymbol(Loc::none(), Symbols::T_Private_Types_Void(), Names::Constants::VOID());
ENFORCE(id == Symbols::T_Private_Types_Void_VOID());
id = id.data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::T_Private_Types_Void_VOIDSingleton());
// T.class_of(T::Sig::WithoutRuntime)
id = Symbols::T_Sig_WithoutRuntime().data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::T_Sig_WithoutRuntimeSingleton());
// T::Sig::WithoutRuntime.sig
method =
enterMethod(*this, Symbols::T_Sig_WithoutRuntimeSingleton(), Names::sig()).defaultArg(Names::arg0()).build();
ENFORCE(method == Symbols::sigWithoutRuntime());
id = enterClassSymbol(Loc::none(), Symbols::T(), Names::Constants::NonForcingConstants());
ENFORCE(id == Symbols::T_NonForcingConstants());
method = enterMethod(*this, Symbols::Sorbet_Private_StaticSingleton(), Names::sig())
.arg(Names::arg0())
.defaultArg(Names::arg1())
.build();
ENFORCE(method == Symbols::SorbetPrivateStaticSingleton_sig());
id = enterClassSymbol(Loc::none(), Symbols::root(), Names::Constants::PackageRegistry());
ENFORCE(id == Symbols::PackageRegistry());
id = enterClassSymbol(Loc::none(), Symbols::root(), Names::Constants::PackageTests());
ENFORCE(id == Symbols::PackageTests());
// PackageSpec is a class that can be subclassed.
id = enterClassSymbol(Loc::none(), Symbols::root(), Names::Constants::PackageSpec());
id.data(*this)->setIsModule(false);
ENFORCE(id == Symbols::PackageSpec());
id = id.data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::PackageSpecSingleton());
method = enterMethod(*this, Symbols::PackageSpecSingleton(), Names::import())
.typedArg(Names::arg0(), make_type<ClassType>(Symbols::PackageSpecSingleton()))
.build();
ENFORCE(method == Symbols::PackageSpec_import());
method = enterMethod(*this, Symbols::PackageSpecSingleton(), Names::test_import())
.typedArg(Names::arg0(), make_type<ClassType>(Symbols::PackageSpecSingleton()))
.build();
ENFORCE(method == Symbols::PackageSpec_test_import());
method = enterMethod(*this, Symbols::PackageSpecSingleton(), Names::export_()).arg(Names::arg0()).build();
ENFORCE(method == Symbols::PackageSpec_export());
method = enterMethod(*this, Symbols::PackageSpecSingleton(), Names::export_for_test()).arg(Names::arg0()).build();
ENFORCE(method == Symbols::PackageSpec_export_for_test());
id = synthesizeClass(core::Names::Constants::Encoding());
ENFORCE(id == Symbols::Encoding());
id = synthesizeClass(core::Names::Constants::Thread());
ENFORCE(id == Symbols::Thread());
// Class#new
method = enterMethod(*this, Symbols::Class(), Names::new_()).repeatedArg(Names::args()).build();
ENFORCE(method == Symbols::Class_new());
method = enterMethodSymbol(Loc::none(), Symbols::noClassOrModule(), Names::TodoMethod());
enterMethodArgumentSymbol(Loc::none(), method, Names::args());
ENFORCE(method == Symbols::todoMethod());
id = enterClassSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), core::Names::Constants::ResolvedSig());
ENFORCE(id == Symbols::Sorbet_Private_Static_ResolvedSig());
id = Symbols::Sorbet_Private_Static_ResolvedSig().data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::Sorbet_Private_Static_ResolvedSigSingleton());
id = enterClassSymbol(Loc::none(), Symbols::T_Private(), core::Names::Constants::Compiler());
ENFORCE(id == Symbols::T_Private_Compiler());
id = Symbols::T_Private_Compiler().data(*this)->singletonClass(*this);
ENFORCE(id == Symbols::T_Private_CompilerSingleton());
typeArgument =
enterTypeArgument(Loc::none(), Symbols::noMethod(), Names::Constants::TodoTypeArgument(), Variance::CoVariant);
ENFORCE(typeArgument == Symbols::todoTypeArgument());
typeArgument.data(*this)->resultType = make_type<core::TypeVar>(typeArgument);
// Root members
Symbols::root().data(*this)->members()[core::Names::Constants::NoSymbol()] = Symbols::noSymbol();
Symbols::root().data(*this)->members()[core::Names::Constants::Top()] = Symbols::top();
Symbols::root().data(*this)->members()[core::Names::Constants::Bottom()] = Symbols::bottom();
// Sorbet::Private::Static::VERSION
id = enterStaticFieldSymbol(Loc::none(), Symbols::Sorbet_Private_Static(), Names::Constants::VERSION());
id.data(*this)->resultType = make_type<LiteralType>(Symbols::String(), enterNameUTF8(sorbet_full_version_string));
// Synthesize <Magic>.<build-hash>(*vs : T.untyped) => Hash
method = enterMethod(*this, Symbols::MagicSingleton(), Names::buildHash())
.repeatedUntypedArg(Names::arg0())
.buildWithResult(Types::hashOfUntyped());
// Synthesize <Magic>.<build-array>(*vs : T.untyped) => Array
method = enterMethod(*this, Symbols::MagicSingleton(), Names::buildArray())
.repeatedUntypedArg(Names::arg0())
.buildWithResult(Types::arrayOfUntyped());
// Synthesize <Magic>.<build-range>(from: T.untyped, to: T.untyped) => Range
method = enterMethod(*this, Symbols::MagicSingleton(), Names::buildRange())
.untypedArg(Names::arg0())
.untypedArg(Names::arg1())
.untypedArg(Names::arg2())
.buildWithResult(Types::rangeOfUntyped());
// Synthesize <Magic>.<regex-backref>(arg0: T.untyped) => T.nilable(String)
method = enterMethod(*this, Symbols::MagicSingleton(), Names::regexBackref())
.untypedArg(Names::arg0())
.buildWithResult(Types::any(*this, Types::nilClass(), Types::String()));
// Synthesize <Magic>.<splat>(a: T.untyped) => Untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::splat())
.untypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<defined>(*arg0: String) => Boolean
method = enterMethod(*this, Symbols::MagicSingleton(), Names::defined_p())
.repeatedTypedArg(Names::arg0(), Types::String())
.buildWithResult(Types::any(*this, Types::nilClass(), Types::String()));
// Synthesize <Magic>.<expandSplat>(arg0: T.untyped, arg1: Integer, arg2: Integer) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::expandSplat())
.untypedArg(Names::arg0())
.untypedArg(Names::arg1())
.untypedArg(Names::arg2())
.buildWithResultUntyped();
// Synthesize <Magic>.<call-with-splat>(args: *T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::callWithSplat())
.repeatedUntypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<call-with-block>(args: *T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::callWithBlock())
.repeatedUntypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<call-with-splat-and-block>(args: *T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::callWithSplatAndBlock())
.repeatedUntypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<suggest-type>(arg: *T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::suggestType())
.untypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<self-new>(arg: *T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::selfNew())
.repeatedUntypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<nil-for-safe-navigation>(recv: T.untyped) => NilClass
method = enterMethod(*this, Symbols::MagicSingleton(), Names::nilForSafeNavigation())
.untypedArg(Names::arg0())
.buildWithResult(Types::nilClass());
// Synthesize <Magic>.<string-interpolate>(arg: *T.untyped) => String
method = enterMethod(*this, Symbols::MagicSingleton(), Names::stringInterpolate())
.repeatedUntypedArg(Names::arg0())
.buildWithResult(Types::String());
// Synthesize <Magic>.<define-top-class-or-module>(arg: T.untyped) => Void
method = enterMethod(*this, Symbols::MagicSingleton(), Names::defineTopClassOrModule())
.untypedArg(Names::arg0())
.buildWithResult(Types::void_());
// Synthesize <Magic>.<keep-for-cfg>(arg: T.untyped) => Void
method = enterMethod(*this, Symbols::MagicSingleton(), Names::keepForCfg())
.untypedArg(Names::arg0())
.buildWithResult(Types::void_());
// Synthesize <Magic>.<retry>() => Void
method = enterMethod(*this, Symbols::MagicSingleton(), Names::retry()).buildWithResult(Types::void_());
// Synthesize <Magic>.<blockBreak>(args: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::blockBreak())
.untypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<getEncoding>() => Encoding
method = enterMethod(*this, Symbols::MagicSingleton(), Names::getEncoding())
.buildWithResult(core::make_type<core::ClassType>(core::Symbols::Encoding()));
// Synthesize <Magic>.mixes_in_class_methods(self: T.untyped, arg: T.untyped) => Void
method = enterMethod(*this, Symbols::MagicSingleton(), Names::mixesInClassMethods())
.untypedArg(Names::selfLocal())
.untypedArg(Names::arg0())
.buildWithResult(Types::void_());
// Synthesize <Magic>.<check-match-array>(pattern: T.untyped, splatArray: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::checkMatchArray())
.untypedArg(Names::arg0())
.untypedArg(Names::arg1())
.buildWithResultUntyped();
// Synthesize <Magic>.<to-hash-dup>(arg: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::toHashDup())
.untypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<to-hash-nodup>(arg: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::toHashNoDup())
.untypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<merge-hash>(*arg: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::mergeHash())
.repeatedUntypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<merge-hash-values>(arg0: T.untyped, *arg1: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::mergeHashValues())
.untypedArg(Names::arg0())
.repeatedUntypedArg(Names::arg())
.buildWithResultUntyped();
// Synthesize <Magic>.<defined-class-var>(arg0: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::definedClassVar())
.untypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <Magic>.<defined-instance-var>(arg0: T.untyped) => T.untyped
method = enterMethod(*this, Symbols::MagicSingleton(), Names::definedInstanceVar())
.untypedArg(Names::arg0())
.buildWithResultUntyped();
// Synthesize <DeclBuilderForProcs>.<params>(args: T.untyped) => DeclBuilderForProcs
method = enterMethod(*this, Symbols::DeclBuilderForProcsSingleton(), Names::params())
.kwsplatArg(Names::arg0())
.buildWithResult(Types::declBuilderForProcsSingletonClass());
// Synthesize <DeclBuilderForProcs>.<bind>(args: T.untyped) =>
// DeclBuilderForProcs
method = enterMethod(*this, Symbols::DeclBuilderForProcsSingleton(), Names::bind())
.untypedArg(Names::arg0())
.buildWithResult(Types::declBuilderForProcsSingletonClass());
// Synthesize <DeclBuilderForProcs>.<returns>(args: T.untyped) => DeclBuilderForProcs
method = enterMethod(*this, Symbols::DeclBuilderForProcsSingleton(), Names::returns())
.untypedArg(Names::arg0())
.buildWithResult(Types::declBuilderForProcsSingletonClass());
// Synthesize <DeclBuilderForProcs>.<type_parameters>(args: T.untyped) =>
// DeclBuilderForProcs
method = enterMethod(*this, Symbols::DeclBuilderForProcsSingleton(), Names::typeParameters())
.untypedArg(Names::arg0())
.buildWithResult(Types::declBuilderForProcsSingletonClass());
// Some of these are Modules
Symbols::StubModule().data(*this)->setIsModule(true);
Symbols::T().data(*this)->setIsModule(true);
Symbols::StubMixin().data(*this)->setIsModule(true);
// Some of these are Classes
Symbols::StubSuperClass().data(*this)->setIsModule(false);
Symbols::StubSuperClass().data(*this)->setSuperClass(Symbols::Object());
// Synthesize T::Utils
id = enterClassSymbol(Loc::none(), Symbols::T(), core::Names::Constants::Utils());
id.data(*this)->setIsModule(true);
int reservedCount = 0;
// Set the correct resultTypes for all synthesized classes
// Collect size prior to loop since singletons will cause vector to grow.
size_t classAndModulesSize = classAndModules.size();
for (u4 i = 1; i < classAndModulesSize; i++) {
classAndModules[i].singletonClass(*this);
}
// This fills in all the way up to MAX_SYNTHETIC_CLASS_SYMBOLS
ENFORCE(classAndModules.size() < Symbols::Proc0().id());
while (classAndModules.size() < Symbols::Proc0().id()) {
string name = absl::StrCat("<RESERVED_", reservedCount, ">");
synthesizeClass(enterNameConstant(name));
reservedCount++;
}
for (int arity = 0; arity <= Symbols::MAX_PROC_ARITY; ++arity) {
string name = absl::StrCat("Proc", arity);
auto id = synthesizeClass(enterNameConstant(name), Symbols::Proc().id());
ENFORCE(id == Symbols::Proc(arity), "Proc creation failed for arity: {} got: {} expected: {}", arity, id.id(),
Symbols::Proc(arity).id());
id.data(*this)->singletonClass(*this);
}
ENFORCE(classAndModules.size() == Symbols::last_synthetic_class_sym().id() + 1,
"Too many synthetic class symbols? have: {} expected: {}", classAndModules.size(),
Symbols::last_synthetic_class_sym().id() + 1);
ENFORCE(methods.size() == Symbols::MAX_SYNTHETIC_METHOD_SYMBOLS,
"Too many synthetic method symbols? have: {} expected: {}", methods.size(),
Symbols::MAX_SYNTHETIC_METHOD_SYMBOLS);
ENFORCE(fields.size() == Symbols::MAX_SYNTHETIC_FIELD_SYMBOLS,
"Too many synthetic field symbols? have: {} expected: {}", fields.size(),
Symbols::MAX_SYNTHETIC_FIELD_SYMBOLS);
ENFORCE(typeMembers.size() == Symbols::MAX_SYNTHETIC_TYPEMEMBER_SYMBOLS,
"Too many synthetic typeMember symbols? have: {} expected: {}", typeMembers.size(),
Symbols::MAX_SYNTHETIC_TYPEMEMBER_SYMBOLS);
ENFORCE(typeArguments.size() == Symbols::MAX_SYNTHETIC_TYPEARGUMENT_SYMBOLS,
"Too many synthetic typeArgument symbols? have: {} expected: {}", typeArguments.size(),
Symbols::MAX_SYNTHETIC_TYPEARGUMENT_SYMBOLS);
installIntrinsics();
Symbols::top().data(*this)->resultType = Types::top();
Symbols::bottom().data(*this)->resultType = Types::bottom();
Symbols::NilClass().data(*this)->resultType = Types::nilClass();
Symbols::untyped().data(*this)->resultType = Types::untypedUntracked();
Symbols::FalseClass().data(*this)->resultType = Types::falseClass();
Symbols::TrueClass().data(*this)->resultType = Types::trueClass();
Symbols::Integer().data(*this)->resultType = Types::Integer();
Symbols::String().data(*this)->resultType = Types::String();
Symbols::Symbol().data(*this)->resultType = Types::Symbol();
Symbols::Float().data(*this)->resultType = Types::Float();
Symbols::Object().data(*this)->resultType = Types::Object();
Symbols::Class().data(*this)->resultType = Types::classClass();
// First file is used to indicate absence of a file
files.emplace_back();
freezeNameTable();
freezeSymbolTable();
freezeFileTable();
sanityCheck();
}
void GlobalState::installIntrinsics() {
for (auto &entry : intrinsicMethods) {
ClassOrModuleRef symbol;
switch (entry.singleton) {
case Intrinsic::Kind::Instance:
symbol = entry.symbol;
break;
case Intrinsic::Kind::Singleton:
symbol = entry.symbol.data(*this)->singletonClass(*this);
break;
}
auto countBefore = methodsUsed();
auto method = enterMethodSymbol(Loc::none(), symbol, entry.method);
method.data(*this)->intrinsic = entry.impl;
if (countBefore != methodsUsed()) {
auto &blkArg = enterMethodArgumentSymbol(Loc::none(), method, Names::blkArg());
blkArg.flags.isBlock = true;
}
}
}
void GlobalState::preallocateTables(u4 classAndModulesSize, u4 methodsSize, u4 fieldsSize, u4 typeArgumentsSize,
u4 typeMembersSize, u4 utf8NameSize, u4 constantNameSize, u4 uniqueNameSize) {
u4 classAndModulesSizeScaled = nextPowerOfTwo(classAndModulesSize);
u4 methodsSizeScaled = nextPowerOfTwo(methodsSize);
u4 fieldsSizeScaled = nextPowerOfTwo(fieldsSize);
u4 typeArgumentsSizeScaled = nextPowerOfTwo(typeArgumentsSize);
u4 typeMembersSizeScaled = nextPowerOfTwo(typeMembersSize);
u4 utf8NameSizeScaled = nextPowerOfTwo(utf8NameSize);
u4 constantNameSizeScaled = nextPowerOfTwo(constantNameSize);
u4 uniqueNameSizeScaled = nextPowerOfTwo(uniqueNameSize);
// Note: reserve is a no-op if size is < current capacity.
classAndModules.reserve(classAndModulesSizeScaled);
methods.reserve(methodsSizeScaled);
fields.reserve(fieldsSizeScaled);
typeArguments.reserve(typeArgumentsSizeScaled);
typeMembers.reserve(typeMembersSizeScaled);
expandNames(utf8NameSizeScaled, constantNameSizeScaled, uniqueNameSizeScaled);
sanityCheck();
trace(fmt::format("Preallocated symbol and name tables. classAndModules={} methods={} fields={} typeArguments={} "
"typeMembers={} utf8Names={} constantNames={} uniqueNames={}",
classAndModules.capacity(), methods.capacity(), fields.capacity(), typeArguments.capacity(),
typeMembers.capacity(), utf8Names.capacity(), constantNames.capacity(), uniqueNames.capacity()));
}
constexpr decltype(GlobalState::STRINGS_PAGE_SIZE) GlobalState::STRINGS_PAGE_SIZE;
MethodRef GlobalState::lookupMethodSymbolWithHash(ClassOrModuleRef owner, NameRef name,
const vector<u4> &methodHash) const {
ENFORCE(owner.exists(), "looking up symbol from non-existing owner");
ENFORCE(name.exists(), "looking up symbol with non-existing name");
auto ownerScope = owner.dataAllowingNone(*this);
histogramInc("symbol_lookup_by_name", ownerScope->members().size());
NameRef lookupName = name;
u4 unique = 1;
auto res = ownerScope->members().find(lookupName);
while (res != ownerScope->members().end()) {
ENFORCE(res->second.exists());
auto resData = res->second.data(*this);
if ((resData->flags & Symbol::Flags::METHOD) == Symbol::Flags::METHOD &&
(resData->methodArgumentHash(*this) == methodHash ||
(resData->intrinsic != nullptr && !resData->hasSig()))) {
return res->second.asMethodRef();
}
lookupName = lookupNameUnique(UniqueNameKind::MangleRename, name, unique);
if (!lookupName.exists()) {
break;
}
res = ownerScope->members().find(lookupName);
unique++;
}
return Symbols::noMethod();
}
// look up a symbol whose flags match the desired flags. This might look through mangled names to discover one whose
// flags match. If no sych symbol exists, then it will return defaultReturnValue.
SymbolRef GlobalState::lookupSymbolWithFlags(SymbolRef owner, NameRef name, u4 flags,
SymbolRef defaultReturnValue) const {
ENFORCE(owner.exists(), "looking up symbol from non-existing owner");
ENFORCE(name.exists(), "looking up symbol with non-existing name");
auto ownerScope = owner.dataAllowingNone(*this);
histogramInc("symbol_lookup_by_name", ownerScope->members().size());
NameRef lookupName = name;
u4 unique = 1;
auto res = ownerScope->members().find(lookupName);
while (res != ownerScope->members().end()) {
ENFORCE(res->second.exists());
if ((res->second.data(*this)->flags & flags) == flags) {
return res->second;
}
lookupName = lookupNameUnique(UniqueNameKind::MangleRename, name, unique);
if (!lookupName.exists()) {
break;
}
res = ownerScope->members().find(lookupName);
unique++;
}
return defaultReturnValue;
}
SymbolRef GlobalState::findRenamedSymbol(SymbolRef owner, SymbolRef sym) const {
// This method works by knowing how to replicate the logic of renaming in order to find whatever
// the previous name was: for `x$n` where `n` is larger than 2, it'll be `x$(n-1)`, for bare `x`,
// it'll be whatever the largest `x$n` that exists is, if any; otherwise, there will be none.
ENFORCE(sym.exists(), "lookup up previous name of non-existing symbol");
NameRef name = sym.data(*this)->name;
auto ownerScope = owner.dataAllowingNone(*this);
if (name.kind() == NameKind::UNIQUE) {
auto uniqueData = name.dataUnique(*this);
if (uniqueData->uniqueNameKind != UniqueNameKind::MangleRename) {
return Symbols::noSymbol();
}
if (uniqueData->num == 1) {
return Symbols::noSymbol();
} else {
ENFORCE(uniqueData->num > 1);
auto nm = lookupNameUnique(UniqueNameKind::MangleRename, uniqueData->original, uniqueData->num - 1);
if (!nm.exists()) {
return Symbols::noSymbol();
}
auto res = ownerScope->members().find(nm);
ENFORCE(res != ownerScope->members().end());
return res->second;
}
} else {
u4 unique = 1;
NameRef lookupName = lookupNameUnique(UniqueNameKind::MangleRename, name, unique);
auto res = ownerScope->members().find(lookupName);
while (res != ownerScope->members().end()) {
ENFORCE(res->second.exists());
unique++;
lookupName = lookupNameUnique(UniqueNameKind::MangleRename, name, unique);
if (!lookupName.exists()) {
return res->second;
}
res = ownerScope->members().find(lookupName);
}
return Symbols::noSymbol();
}
}
ClassOrModuleRef GlobalState::enterClassSymbol(Loc loc, ClassOrModuleRef owner, NameRef name) {
// ENFORCE_NO_TIMER(!owner.exists()); // Owner may not exist on purely synthetic symbols.
ENFORCE_NO_TIMER(name.isClassName(*this));
SymbolData ownerScope = owner.dataAllowingNone(*this);
histogramInc("symbol_enter_by_name", ownerScope->members().size());
auto flags = Symbol::Flags::CLASS_OR_MODULE;
auto &store = ownerScope->members()[name];
if (store.exists()) {
ENFORCE_NO_TIMER((store.data(*this)->flags & flags) == flags, "existing symbol has wrong flags");
counterInc("symbols.hit");
return store.asClassOrModuleRef();
}
ENFORCE_NO_TIMER(!symbolTableFrozen);
auto ret = ClassOrModuleRef(*this, classAndModules.size());
store = ret; // DO NOT MOVE this assignment down. emplace_back on classAndModules invalidates `store`
classAndModules.emplace_back();
SymbolData data = ret.data(*this);
data->name = name;
data->flags = flags;
data->owner = owner;
data->addLoc(*this, loc);
DEBUG_ONLY(categoryCounterInc("symbols", "class"));
wasModified_ = true;
return ret;
}
TypeMemberRef GlobalState::enterTypeMember(Loc loc, ClassOrModuleRef owner, NameRef name, Variance variance) {
u4 flags;
ENFORCE(owner.exists() || name == Names::Constants::NoTypeMember());
ENFORCE(name.exists());
if (variance == Variance::Invariant) {
flags = Symbol::Flags::TYPE_INVARIANT;
} else if (variance == Variance::CoVariant) {
flags = Symbol::Flags::TYPE_COVARIANT;
} else if (variance == Variance::ContraVariant) {
flags = Symbol::Flags::TYPE_CONTRAVARIANT;
} else {
Exception::notImplemented();
}
flags = flags | Symbol::Flags::TYPE_MEMBER;
SymbolData ownerScope = owner.dataAllowingNone(*this);
histogramInc("symbol_enter_by_name", ownerScope->members().size());
auto &store = ownerScope->members()[name];
if (store.exists()) {
ENFORCE((store.data(*this)->flags & flags) == flags, "existing symbol has wrong flags");
counterInc("symbols.hit");
return store.asTypeMemberRef();
}
ENFORCE(!symbolTableFrozen);
auto result = SymbolRef(this, SymbolRef::Kind::TypeMember, typeMembers.size());
store = result; // DO NOT MOVE this assignment down. emplace_back on typeMembers invalidates `store`
typeMembers.emplace_back();
SymbolData data = result.dataAllowingNone(*this);
data->name = name;
data->flags = flags;
data->owner = owner;
data->addLoc(*this, loc);
DEBUG_ONLY(categoryCounterInc("symbols", "type_member"));
wasModified_ = true;
auto &members = owner.dataAllowingNone(*this)->typeMembers();
if (!absl::c_linear_search(members, result)) {
members.emplace_back(result);
}
return result.asTypeMemberRef();
}
TypeArgumentRef GlobalState::enterTypeArgument(Loc loc, MethodRef owner, NameRef name, Variance variance) {
ENFORCE(owner.exists() || name == Names::Constants::NoTypeArgument() ||
name == Names::Constants::TodoTypeArgument());
ENFORCE(name.exists());
u4 flags;
if (variance == Variance::Invariant) {
flags = Symbol::Flags::TYPE_INVARIANT;
} else if (variance == Variance::CoVariant) {
flags = Symbol::Flags::TYPE_COVARIANT;
} else if (variance == Variance::ContraVariant) {
flags = Symbol::Flags::TYPE_CONTRAVARIANT;
} else {
Exception::notImplemented();
}
flags = flags | Symbol::Flags::TYPE_ARGUMENT;
SymbolData ownerScope = core::SymbolRef(*this, core::SymbolRef::Kind::Method, owner.id()).dataAllowingNone(*this);
histogramInc("symbol_enter_by_name", ownerScope->members().size());
auto &store = ownerScope->members()[name];
if (store.exists()) {
ENFORCE((store.data(*this)->flags & flags) == flags, "existing symbol has wrong flags");
counterInc("symbols.hit");
return store.asTypeArgumentRef();
}
ENFORCE(!symbolTableFrozen);
auto result = SymbolRef(this, SymbolRef::Kind::TypeArgument, typeArguments.size());
store = result; // DO NOT MOVE this assignment down. emplace_back on typeArguments invalidates `store`
typeArguments.emplace_back();
SymbolData data = result.dataAllowingNone(*this);
data->name = name;
data->flags = flags;
data->owner = owner;
data->addLoc(*this, loc);
DEBUG_ONLY(categoryCounterInc("symbols", "type_argument"));
wasModified_ = true;
core::SymbolRef(owner).dataAllowingNone(*this)->typeArguments().emplace_back(result);
return result.asTypeArgumentRef();
}
MethodRef GlobalState::enterMethodSymbol(Loc loc, ClassOrModuleRef owner, NameRef name) {
auto flags = Symbol::Flags::METHOD;
SymbolData ownerScope = owner.dataAllowingNone(*this);
histogramInc("symbol_enter_by_name", ownerScope->members().size());
auto &store = ownerScope->members()[name];
if (store.exists()) {
ENFORCE((store.data(*this)->flags & flags) == flags, "existing symbol has wrong flags");
counterInc("symbols.hit");
return store.asMethodRef();
}