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ac99f6d165
This patch extracts the RTTI part of llvm::ErrorInfo into its own class (RTTIExtends) so that it can be used in other non-error hierarchies, and makes it compatible with the existing LLVM RTTI function templates (isa, cast, dyn_cast, dyn_cast_or_null) by adding the classof method. Differential Revision: https://reviews.llvm.org/D39111
87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
//===------ unittests/ExtensibleRTTITest.cpp - Extensible RTTI Tests ------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ExtensibleRTTI.h"
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#include "llvm/Support/Casting.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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class MyBaseType : public RTTIExtends<MyBaseType, RTTIRoot> {
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public:
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static char ID;
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};
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class MyDerivedType : public RTTIExtends<MyDerivedType, MyBaseType> {
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public:
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static char ID;
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};
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class MyOtherDerivedType : public RTTIExtends<MyOtherDerivedType, MyBaseType> {
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public:
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static char ID;
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};
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class MyDeeperDerivedType
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: public RTTIExtends<MyDeeperDerivedType, MyDerivedType> {
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public:
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static char ID;
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};
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char MyBaseType::ID = 0;
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char MyDerivedType::ID = 0;
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char MyOtherDerivedType::ID = 0;
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char MyDeeperDerivedType::ID = 0;
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TEST(ExtensibleRTTI, isa) {
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MyBaseType B;
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MyDerivedType D;
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MyDeeperDerivedType DD;
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EXPECT_TRUE(isa<MyBaseType>(B));
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EXPECT_FALSE(isa<MyDerivedType>(B));
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EXPECT_FALSE(isa<MyOtherDerivedType>(B));
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EXPECT_FALSE(isa<MyDeeperDerivedType>(B));
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EXPECT_TRUE(isa<MyBaseType>(D));
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EXPECT_TRUE(isa<MyDerivedType>(D));
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EXPECT_FALSE(isa<MyOtherDerivedType>(D));
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EXPECT_FALSE(isa<MyDeeperDerivedType>(D));
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EXPECT_TRUE(isa<MyBaseType>(DD));
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EXPECT_TRUE(isa<MyDerivedType>(DD));
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EXPECT_FALSE(isa<MyOtherDerivedType>(DD));
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EXPECT_TRUE(isa<MyDeeperDerivedType>(DD));
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}
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TEST(ExtensibleRTTI, cast) {
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MyDerivedType D;
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MyBaseType &BD = D;
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cast<MyBaseType>(D);
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cast<MyBaseType>(BD);
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cast<MyDerivedType>(BD);
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}
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TEST(ExtensibleRTTI, dyn_cast) {
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MyBaseType B;
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MyDerivedType D;
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MyBaseType &BD = D;
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EXPECT_EQ(dyn_cast<MyDerivedType>(&B), nullptr);
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EXPECT_EQ(dyn_cast<MyDerivedType>(&D), &D);
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EXPECT_EQ(dyn_cast<MyBaseType>(&BD), &BD);
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EXPECT_EQ(dyn_cast<MyDerivedType>(&BD), &D);
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}
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} // namespace
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