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//===- unittests/AST/ASTExprTest.cpp --- AST Expr tests -------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains tests for AST Expr related methods.
//
//===----------------------------------------------------------------------===//
#include "ASTPrint.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Expr.h"
#include "clang/AST/IgnoreExpr.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
using namespace clang;
TEST(ASTExpr, IgnoreExprCallbackForwarded) {
constexpr char Code[] = "";
auto AST = tooling::buildASTFromCodeWithArgs(Code, /*Args=*/{"-std=c++20"});
ASTContext &Ctx = AST->getASTContext();
auto createIntLiteral = [&](uint32_t Value) -> IntegerLiteral * {
const int numBits = 32;
return IntegerLiteral::Create(Ctx, llvm::APInt(numBits, Value),
Ctx.UnsignedIntTy, {});
};
struct IgnoreParens {
Expr *operator()(Expr *E) & { return nullptr; }
Expr *operator()(Expr *E) && {
if (auto *PE = dyn_cast<ParenExpr>(E)) {
return PE->getSubExpr();
}
return E;
}
};
{
auto *IntExpr = createIntLiteral(10);
ParenExpr *PE =
new (Ctx) ParenExpr(SourceLocation{}, SourceLocation{}, IntExpr);
EXPECT_EQ(IntExpr, IgnoreExprNodes(PE, IgnoreParens{}));
}
{
IgnoreParens CB{};
auto *IntExpr = createIntLiteral(10);
ParenExpr *PE =
new (Ctx) ParenExpr(SourceLocation{}, SourceLocation{}, IntExpr);
EXPECT_EQ(nullptr, IgnoreExprNodes(PE, CB));
}
}
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