1 //===- unittests/Support/SourceMgrTest.cpp - SourceMgr tests --------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/Support/SourceMgr.h" 11 #include "llvm/Support/MemoryBuffer.h" 12 #include "llvm/Support/raw_ostream.h" 13 #include "gtest/gtest.h" 14 15 using namespace llvm; 16 17 namespace { 18 19 class SourceMgrTest : public testing::Test { 20 public: 21 SourceMgr SM; 22 unsigned MainBufferID; 23 std::string Output; 24 25 void setMainBuffer(StringRef Text, StringRef BufferName) { 26 MemoryBuffer *MainBuffer = MemoryBuffer::getMemBuffer(Text, BufferName); 27 MainBufferID = SM.AddNewSourceBuffer(MainBuffer, llvm::SMLoc()); 28 } 29 30 SMLoc getLoc(unsigned Offset) { 31 return SMLoc::getFromPointer( 32 SM.getMemoryBuffer(MainBufferID)->getBufferStart() + Offset); 33 } 34 35 SMRange getRange(unsigned Offset, unsigned Length) { 36 return SMRange(getLoc(Offset), getLoc(Offset + Length)); 37 } 38 39 void printMessage(SMLoc Loc, SourceMgr::DiagKind Kind, 40 const Twine &Msg, ArrayRef<SMRange> Ranges, 41 ArrayRef<SMFixIt> FixIts) { 42 raw_string_ostream OS(Output); 43 SM.PrintMessage(OS, Loc, Kind, Msg, Ranges, FixIts); 44 } 45 }; 46 47 } // unnamed namespace 48 49 TEST_F(SourceMgrTest, BasicError) { 50 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 51 printMessage(getLoc(4), SourceMgr::DK_Error, "message", None, None); 52 53 EXPECT_EQ("file.in:1:5: error: message\n" 54 "aaa bbb\n" 55 " ^\n", 56 Output); 57 } 58 59 TEST_F(SourceMgrTest, BasicWarning) { 60 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 61 printMessage(getLoc(4), SourceMgr::DK_Warning, "message", None, None); 62 63 EXPECT_EQ("file.in:1:5: warning: message\n" 64 "aaa bbb\n" 65 " ^\n", 66 Output); 67 } 68 69 TEST_F(SourceMgrTest, BasicNote) { 70 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 71 printMessage(getLoc(4), SourceMgr::DK_Note, "message", None, None); 72 73 EXPECT_EQ("file.in:1:5: note: message\n" 74 "aaa bbb\n" 75 " ^\n", 76 Output); 77 } 78 79 TEST_F(SourceMgrTest, LocationAtEndOfLine) { 80 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 81 printMessage(getLoc(6), SourceMgr::DK_Error, "message", None, None); 82 83 EXPECT_EQ("file.in:1:7: error: message\n" 84 "aaa bbb\n" 85 " ^\n", 86 Output); 87 } 88 89 TEST_F(SourceMgrTest, LocationAtNewline) { 90 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 91 printMessage(getLoc(7), SourceMgr::DK_Error, "message", None, None); 92 93 EXPECT_EQ("file.in:1:8: error: message\n" 94 "aaa bbb\n" 95 " ^\n", 96 Output); 97 } 98 99 TEST_F(SourceMgrTest, BasicRange) { 100 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 101 printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(4, 3), None); 102 103 EXPECT_EQ("file.in:1:5: error: message\n" 104 "aaa bbb\n" 105 " ^~~\n", 106 Output); 107 } 108 109 TEST_F(SourceMgrTest, RangeWithTab) { 110 setMainBuffer("aaa\tbbb\nccc ddd\n", "file.in"); 111 printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(3, 3), None); 112 113 EXPECT_EQ("file.in:1:5: error: message\n" 114 "aaa bbb\n" 115 " ~~~~~^~\n", 116 Output); 117 } 118 119 TEST_F(SourceMgrTest, MultiLineRange) { 120 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 121 printMessage(getLoc(4), SourceMgr::DK_Error, "message", getRange(4, 7), None); 122 123 EXPECT_EQ("file.in:1:5: error: message\n" 124 "aaa bbb\n" 125 " ^~~\n", 126 Output); 127 } 128 129 TEST_F(SourceMgrTest, MultipleRanges) { 130 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 131 SMRange Ranges[] = { getRange(0, 3), getRange(4, 3) }; 132 printMessage(getLoc(4), SourceMgr::DK_Error, "message", Ranges, None); 133 134 EXPECT_EQ("file.in:1:5: error: message\n" 135 "aaa bbb\n" 136 "~~~ ^~~\n", 137 Output); 138 } 139 140 TEST_F(SourceMgrTest, OverlappingRanges) { 141 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 142 SMRange Ranges[] = { getRange(0, 3), getRange(2, 4) }; 143 printMessage(getLoc(4), SourceMgr::DK_Error, "message", Ranges, None); 144 145 EXPECT_EQ("file.in:1:5: error: message\n" 146 "aaa bbb\n" 147 "~~~~^~\n", 148 Output); 149 } 150 151 TEST_F(SourceMgrTest, BasicFixit) { 152 setMainBuffer("aaa bbb\nccc ddd\n", "file.in"); 153 printMessage(getLoc(4), SourceMgr::DK_Error, "message", None, 154 makeArrayRef(SMFixIt(getRange(4, 3), "zzz"))); 155 156 EXPECT_EQ("file.in:1:5: error: message\n" 157 "aaa bbb\n" 158 " ^~~\n" 159 " zzz\n", 160 Output); 161 } 162 163 TEST_F(SourceMgrTest, FixitForTab) { 164 setMainBuffer("aaa\tbbb\nccc ddd\n", "file.in"); 165 printMessage(getLoc(3), SourceMgr::DK_Error, "message", None, 166 makeArrayRef(SMFixIt(getRange(3, 1), "zzz"))); 167 168 EXPECT_EQ("file.in:1:4: error: message\n" 169 "aaa bbb\n" 170 " ^^^^^\n" 171 " zzz\n", 172 Output); 173 } 174 175
