54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//===-- ExpandMacroTests.cpp ------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "TweakTesting.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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namespace clang {
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namespace clangd {
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namespace {
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TWEAK_TEST(ExpandMacro);
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TEST_F(ExpandMacroTest, Test) {
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Header = R"cpp(
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// error-ok: not real c++, just token manipulation
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#define FOO 1 2 3
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#define FUNC(X) X+X+X
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#define EMPTY
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#define EMPTY_FN(X)
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)cpp";
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// Available on macro names, not available anywhere else.
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EXPECT_AVAILABLE("^F^O^O^ BAR ^F^O^O^");
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EXPECT_AVAILABLE("^F^U^N^C^(1)");
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EXPECT_UNAVAILABLE("^#^d^efine^ ^XY^Z 1 ^2 ^3^");
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EXPECT_UNAVAILABLE("FOO ^B^A^R^ FOO ^");
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EXPECT_UNAVAILABLE("FUNC(^1^)^");
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// Works as expected on object-like macros.
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EXPECT_EQ(apply("^FOO BAR FOO"), "1 2 3 BAR FOO");
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EXPECT_EQ(apply("FOO BAR ^FOO"), "FOO BAR 1 2 3");
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// And function-like macros.
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EXPECT_EQ(apply("F^UNC(2)"), "2 + 2 + 2");
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// Works on empty macros.
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EXPECT_EQ(apply("int a ^EMPTY;"), "int a ;");
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EXPECT_EQ(apply("int a ^EMPTY_FN(1 2 3);"), "int a ;");
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EXPECT_EQ(apply("int a = 123 ^EMPTY EMPTY_FN(1);"),
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"int a = 123 EMPTY_FN(1);");
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EXPECT_EQ(apply("int a = 123 ^EMPTY_FN(1) EMPTY;"), "int a = 123 EMPTY;");
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EXPECT_EQ(apply("int a = 123 EMPTY_FN(1) ^EMPTY;"),
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"int a = 123 EMPTY_FN(1) ;");
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}
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} // namespace
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} // namespace clangd
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} // namespace clang
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