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range that includes a tab character will cause out-of-bounds access to the fixit string. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191563 91177308-0d34-0410-b5e6-96231b3b80d8
175 lines
4.9 KiB
C++
175 lines
4.9 KiB
C++
//===- unittests/Support/SourceMgrTest.cpp - SourceMgr 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/SourceMgr.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/raw_ostream.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 SourceMgrTest : public testing::Test {
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public:
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SourceMgr SM;
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unsigned MainBufferID;
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std::string Output;
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void setMainBuffer(StringRef Text, StringRef BufferName) {
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MemoryBuffer *MainBuffer = MemoryBuffer::getMemBuffer(Text, BufferName);
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MainBufferID = SM.AddNewSourceBuffer(MainBuffer, llvm::SMLoc());
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}
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SMLoc getLoc(unsigned Offset) {
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return SMLoc::getFromPointer(
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SM.getMemoryBuffer(MainBufferID)->getBufferStart() + Offset);
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}
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SMRange getRange(unsigned Offset, unsigned Length) {
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return SMRange(getLoc(Offset), getLoc(Offset + Length));
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}
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void printMessage(SMLoc Loc, SourceMgr::DiagKind Kind,
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const Twine &Msg, ArrayRef<SMRange> Ranges,
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ArrayRef<SMFixIt> FixIts) {
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raw_string_ostream OS(Output);
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SM.PrintMessage(OS, Loc, Kind, Msg, Ranges, FixIts);
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}
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};
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} // unnamed namespace
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TEST_F(SourceMgrTest, BasicError) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(4), SourceMgr::DK_Error, "message", None, None);
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EXPECT_EQ("file.in:1:5: error: message\n"
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"aaa bbb\n"
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" ^\n",
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Output);
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}
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TEST_F(SourceMgrTest, BasicWarning) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(4), SourceMgr::DK_Warning, "message", None, None);
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EXPECT_EQ("file.in:1:5: warning: message\n"
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"aaa bbb\n"
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" ^\n",
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Output);
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}
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TEST_F(SourceMgrTest, BasicNote) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(4), SourceMgr::DK_Note, "message", None, None);
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EXPECT_EQ("file.in:1:5: note: message\n"
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"aaa bbb\n"
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" ^\n",
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Output);
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}
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TEST_F(SourceMgrTest, LocationAtEndOfLine) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(6), SourceMgr::DK_Error, "message", None, None);
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EXPECT_EQ("file.in:1:7: error: message\n"
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"aaa bbb\n"
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" ^\n",
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Output);
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}
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TEST_F(SourceMgrTest, LocationAtNewline) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(7), SourceMgr::DK_Error, "message", None, None);
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EXPECT_EQ("file.in:1:8: error: message\n"
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"aaa bbb\n"
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" ^\n",
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Output);
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}
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TEST_F(SourceMgrTest, BasicRange) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(4, 3), None);
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EXPECT_EQ("file.in:1:5: error: message\n"
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"aaa bbb\n"
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" ^~~\n",
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Output);
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}
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TEST_F(SourceMgrTest, RangeWithTab) {
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setMainBuffer("aaa\tbbb\nccc ddd\n", "file.in");
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printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(3, 3), None);
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EXPECT_EQ("file.in:1:5: error: message\n"
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"aaa bbb\n"
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" ~~~~~^~\n",
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Output);
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}
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TEST_F(SourceMgrTest, MultiLineRange) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(4, 7), None);
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EXPECT_EQ("file.in:1:5: error: message\n"
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"aaa bbb\n"
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" ^~~\n",
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Output);
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}
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TEST_F(SourceMgrTest, MultipleRanges) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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SMRange Ranges[] = { getRange(0, 3), getRange(4, 3) };
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printMessage(getLoc(4), SourceMgr::DK_Error, "message", Ranges, None);
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EXPECT_EQ("file.in:1:5: error: message\n"
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"aaa bbb\n"
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"~~~ ^~~\n",
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Output);
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}
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TEST_F(SourceMgrTest, OverlappingRanges) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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SMRange Ranges[] = { getRange(0, 3), getRange(2, 4) };
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printMessage(getLoc(4), SourceMgr::DK_Error, "message", Ranges, None);
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EXPECT_EQ("file.in:1:5: error: message\n"
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"aaa bbb\n"
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"~~~~^~\n",
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Output);
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}
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TEST_F(SourceMgrTest, BasicFixit) {
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setMainBuffer("aaa bbb\nccc ddd\n", "file.in");
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printMessage(getLoc(4), SourceMgr::DK_Error, "message", None,
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makeArrayRef(SMFixIt(getRange(4, 3), "zzz")));
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EXPECT_EQ("file.in:1:5: error: message\n"
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"aaa bbb\n"
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" ^~~\n"
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" zzz\n",
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Output);
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}
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TEST_F(SourceMgrTest, FixitForTab) {
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setMainBuffer("aaa\tbbb\nccc ddd\n", "file.in");
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printMessage(getLoc(3), SourceMgr::DK_Error, "message", None,
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makeArrayRef(SMFixIt(getRange(3, 1), "zzz")));
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EXPECT_EQ("file.in:1:4: error: message\n"
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"aaa bbb\n"
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" ^^^^^\n"
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" zzz\n",
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Output);
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}
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