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Merge pull request apple#34286 from xedin/add-sema-unittest-fixture
[unittests] Add a fixture for Sema unit tests
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//===--- BindingInferenceTests.cpp ----------------------------------------===// | ||
// | ||
// This source file is part of the Swift.org open source project | ||
// | ||
// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors | ||
// Licensed under Apache License v2.0 with Runtime Library Exception | ||
// | ||
// See https://swift.org/LICENSE.txt for license information | ||
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#include "SemaFixture.h" | ||
#include "swift/AST/Expr.h" | ||
#include "swift/Sema/ConstraintSystem.h" | ||
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using namespace swift; | ||
using namespace swift::unittest; | ||
using namespace swift::constraints; | ||
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TEST_F(SemaTest, TestIntLiteralBindingInference) { | ||
ConstraintSystemOptions options; | ||
options |= ConstraintSystemFlags::AllowUnresolvedTypeVariables; | ||
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ConstraintSystem cs(DC, options); | ||
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auto *intLiteral = IntegerLiteralExpr::createFromUnsigned(Context, 42); | ||
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auto *literalTy = cs.createTypeVariable(cs.getConstraintLocator(intLiteral), | ||
/*options=*/0); | ||
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cs.addConstraint( | ||
ConstraintKind::LiteralConformsTo, literalTy, | ||
Context.getProtocol(KnownProtocolKind::ExpressibleByIntegerLiteral) | ||
->getDeclaredInterfaceType(), | ||
cs.getConstraintLocator(intLiteral)); | ||
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auto bindings = cs.inferBindingsFor(literalTy); | ||
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ASSERT_EQ(bindings.Bindings.size(), (unsigned)1); | ||
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const auto &binding = bindings.Bindings.front(); | ||
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ASSERT_TRUE(binding.BindingType->isEqual(getStdlibType("Int"))); | ||
ASSERT_TRUE(binding.hasDefaultedLiteralProtocol()); | ||
} |
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add_swift_unittest(swiftSemaTests | ||
SemaFixture.cpp | ||
BindingInferenceTests.cpp) | ||
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target_link_libraries(swiftSemaTests | ||
PRIVATE | ||
swiftAST | ||
swiftSema | ||
swiftSerialization) | ||
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target_compile_definitions(swiftSemaTests PRIVATE | ||
SWIFTLIB_DIR=\"${SWIFTLIB_DIR}\") |
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//===--- SemaFixture.cpp - Helper for setting up Sema context --------------===// | ||
// | ||
// This source file is part of the Swift.org open source project | ||
// | ||
// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors | ||
// Licensed under Apache License v2.0 with Runtime Library Exception | ||
// | ||
// See https://swift.org/LICENSE.txt for license information | ||
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#include "SemaFixture.h" | ||
#include "swift/AST/Decl.h" | ||
#include "swift/AST/Import.h" | ||
#include "swift/AST/Module.h" | ||
#include "swift/AST/ParseRequests.h" | ||
#include "swift/AST/SourceFile.h" | ||
#include "swift/AST/Type.h" | ||
#include "swift/AST/Types.h" | ||
#include "swift/Basic/LLVMInitialize.h" | ||
#include "swift/ClangImporter/ClangImporter.h" | ||
#include "swift/Serialization/SerializedModuleLoader.h" | ||
#include "swift/Subsystems.h" | ||
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using namespace swift; | ||
using namespace swift::unittest; | ||
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SemaTest::SemaTest() | ||
: Context(*ASTContext::get(LangOpts, TypeCheckerOpts, SearchPathOpts, | ||
ClangImporterOpts, SourceMgr, Diags)) { | ||
INITIALIZE_LLVM(); | ||
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registerParseRequestFunctions(Context.evaluator); | ||
registerTypeCheckerRequestFunctions(Context.evaluator); | ||
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Context.addModuleLoader(ImplicitSerializedModuleLoader::create(Context)); | ||
Context.addModuleLoader(ClangImporter::create(Context), /*isClang=*/true); | ||
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auto *stdlib = Context.getStdlibModule(/*loadIfAbsent=*/true); | ||
assert(stdlib && "Failed to load standard library"); | ||
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auto *module = | ||
ModuleDecl::create(Context.getIdentifier("SemaTests"), Context); | ||
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MainFile = new (Context) SourceFile(*module, SourceFileKind::Main, | ||
/*buffer=*/None); | ||
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AttributedImport<ImportedModule> stdlibImport{{ImportPath::Access(), stdlib}, | ||
/*options=*/{}}; | ||
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MainFile->setImports(stdlibImport); | ||
module->addFile(*MainFile); | ||
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DC = module; | ||
} | ||
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Type SemaTest::getStdlibType(StringRef name) const { | ||
auto typeName = Context.getIdentifier(name); | ||
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auto *stdlib = Context.getStdlibModule(); | ||
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llvm::SmallVector<ValueDecl *, 4> results; | ||
stdlib->lookupValue(typeName, NLKind::UnqualifiedLookup, results); | ||
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if (results.size() != 1) | ||
return Type(); | ||
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if (auto *decl = dyn_cast<TypeDecl>(results.front())) { | ||
if (auto *NTD = dyn_cast<NominalTypeDecl>(decl)) | ||
return NTD->getDeclaredType(); | ||
return decl->getDeclaredInterfaceType(); | ||
} | ||
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return Type(); | ||
} |
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//===--- SemaFixture.h - Helper for setting up Sema context -----*- C++ -*-===// | ||
// | ||
// This source file is part of the Swift.org open source project | ||
// | ||
// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors | ||
// Licensed under Apache License v2.0 with Runtime Library Exception | ||
// | ||
// See https://swift.org/LICENSE.txt for license information | ||
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#include "swift/AST/ASTContext.h" | ||
#include "swift/AST/DiagnosticEngine.h" | ||
#include "swift/AST/Module.h" | ||
#include "swift/AST/SourceFile.h" | ||
#include "swift/AST/Type.h" | ||
#include "swift/Basic/LangOptions.h" | ||
#include "swift/Basic/Platform.h" | ||
#include "swift/Basic/SourceManager.h" | ||
#include "llvm/ADT/StringRef.h" | ||
#include "llvm/ADT/SmallString.h" | ||
#include "llvm/Support/Host.h" | ||
#include "llvm/Support/Path.h" | ||
#include "gtest/gtest.h" | ||
#include <string> | ||
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namespace swift { | ||
namespace unittest { | ||
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class SemaTestBase : public ::testing::Test { | ||
public: | ||
LangOptions LangOpts; | ||
TypeCheckerOptions TypeCheckerOpts; | ||
SearchPathOptions SearchPathOpts; | ||
ClangImporterOptions ClangImporterOpts; | ||
SourceManager SourceMgr; | ||
DiagnosticEngine Diags; | ||
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SemaTestBase() : Diags(SourceMgr) { | ||
LangOpts.Target = llvm::Triple(llvm::sys::getDefaultTargetTriple()); | ||
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llvm::SmallString<128> libDir(SWIFTLIB_DIR); | ||
llvm::sys::path::append(libDir, getPlatformNameForTriple(LangOpts.Target)); | ||
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SearchPathOpts.RuntimeResourcePath = SWIFTLIB_DIR; | ||
SearchPathOpts.RuntimeLibraryPaths.push_back(std::string(libDir.str())); | ||
SearchPathOpts.RuntimeLibraryImportPaths.push_back( | ||
std::string(libDir.str())); | ||
} | ||
}; | ||
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/// Owns an ASTContext and the associated types. | ||
class SemaTest : public SemaTestBase { | ||
SourceFile *MainFile; | ||
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public: | ||
ASTContext &Context; | ||
DeclContext *DC; | ||
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SemaTest(); | ||
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protected: | ||
Type getStdlibType(StringRef name) const; | ||
}; | ||
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} // end namespace unittest | ||
} // end namespace swift |