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e038fa7292
Summary:
This patch is part of a patch series to add support for FileCheck
numeric expressions. This specific patch adds a new class to hold
pattern matching global state.
The table holding the values of FileCheck variable constitutes some sort
of global state for the matching phase, yet is passed as parameters of
all functions using it. This commit create a new FileCheckPatternContext
class pointed at from FileCheckPattern. While it increases the line
count, it separates local data from global state. Later commits build
on that to add numeric expression global state to that class.
Copyright:
- Linaro (changes up to diff 183612 of revision D55940)
- GraphCore (changes in later versions of revision D55940 and
in new revision created off D55940)
Reviewers: jhenderson, chandlerc, jdenny, probinson, grimar, arichardson, rnk
Subscribers: hiraditya, llvm-commits, probinson, dblaikie, grimar, arichardson, tra, rnk, kristina, hfinkel, rogfer01, JonChesterfield
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60381
llvm-svn: 358390
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
//===- llvm/unittest/Support/FileCheckTest.cpp - FileCheck tests --===//
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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 "llvm/Support/FileCheck.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 FileCheckTest : public ::testing::Test {};
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TEST_F(FileCheckTest, FileCheckContext) {
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FileCheckPatternContext Cxt;
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std::vector<std::string> GlobalDefines;
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// Define local and global variables from command-line.
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GlobalDefines.emplace_back(std::string("LocalVar=FOO"));
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Cxt.defineCmdlineVariables(GlobalDefines);
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// Check defined variables are present and undefined is absent.
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StringRef LocalVarStr = "LocalVar";
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StringRef UnknownVarStr = "UnknownVar";
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llvm::Optional<StringRef> LocalVar = Cxt.getVarValue(LocalVarStr);
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llvm::Optional<StringRef> UnknownVar = Cxt.getVarValue(UnknownVarStr);
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EXPECT_TRUE(LocalVar);
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EXPECT_EQ(*LocalVar, "FOO");
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EXPECT_FALSE(UnknownVar);
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// Clear local variables and check they become absent.
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Cxt.clearLocalVars();
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LocalVar = Cxt.getVarValue(LocalVarStr);
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EXPECT_FALSE(LocalVar);
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// Redefine global variables and check variables are defined again.
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GlobalDefines.emplace_back(std::string("$GlobalVar=BAR"));
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Cxt.defineCmdlineVariables(GlobalDefines);
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StringRef GlobalVarStr = "$GlobalVar";
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llvm::Optional<StringRef> GlobalVar = Cxt.getVarValue(GlobalVarStr);
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EXPECT_TRUE(GlobalVar);
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EXPECT_EQ(*GlobalVar, "BAR");
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// Clear local variables and check global variables remain defined.
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Cxt.clearLocalVars();
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GlobalVar = Cxt.getVarValue(GlobalVarStr);
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EXPECT_TRUE(GlobalVar);
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}
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} // namespace
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