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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- Line.h ---------------------------------------------------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |||
| 9 | #ifndef LLVM_DEBUGINFO_CODEVIEW_LINE_H |
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| 10 | #define LLVM_DEBUGINFO_CODEVIEW_LINE_H |
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| 11 | |||
| 12 | #include "llvm/Support/Endian.h" |
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| 13 | #include <cinttypes> |
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| 14 | |||
| 15 | namespace llvm { |
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| 16 | namespace codeview { |
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| 17 | |||
| 18 | using llvm::support::ulittle32_t; |
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| 19 | |||
| 20 | class LineInfo { |
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| 21 | public: |
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| 22 | enum : uint32_t { |
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| 23 | AlwaysStepIntoLineNumber = 0xfeefee, |
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| 24 | NeverStepIntoLineNumber = 0xf00f00 |
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| 25 | }; |
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| 26 | |||
| 27 | enum : int { EndLineDeltaShift = 24 }; |
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| 28 | |||
| 29 | enum : uint32_t { |
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| 30 | StartLineMask = 0x00ffffff, |
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| 31 | EndLineDeltaMask = 0x7f000000, |
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| 32 | StatementFlag = 0x80000000u |
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| 33 | }; |
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| 34 | |||
| 35 | LineInfo(uint32_t StartLine, uint32_t EndLine, bool IsStatement); |
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| 36 | LineInfo(uint32_t LineData) : LineData(LineData) {} |
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| 37 | |||
| 38 | uint32_t getStartLine() const { return LineData & StartLineMask; } |
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| 39 | |||
| 40 | uint32_t getLineDelta() const { |
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| 41 | return (LineData & EndLineDeltaMask) >> EndLineDeltaShift; |
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| 42 | } |
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| 43 | |||
| 44 | uint32_t getEndLine() const { return getStartLine() + getLineDelta(); } |
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| 45 | |||
| 46 | bool isStatement() const { return (LineData & StatementFlag) != 0; } |
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| 47 | |||
| 48 | uint32_t getRawData() const { return LineData; } |
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| 49 | |||
| 50 | bool isAlwaysStepInto() const { |
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| 51 | return getStartLine() == AlwaysStepIntoLineNumber; |
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| 52 | } |
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| 53 | |||
| 54 | bool isNeverStepInto() const { |
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| 55 | return getStartLine() == NeverStepIntoLineNumber; |
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| 56 | } |
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| 57 | |||
| 58 | private: |
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| 59 | uint32_t LineData; |
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| 60 | }; |
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| 61 | |||
| 62 | class ColumnInfo { |
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| 63 | private: |
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| 64 | static const uint32_t StartColumnMask = 0x0000ffffu; |
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| 65 | static const uint32_t EndColumnMask = 0xffff0000u; |
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| 66 | static const int EndColumnShift = 16; |
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| 67 | |||
| 68 | public: |
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| 69 | ColumnInfo(uint16_t StartColumn, uint16_t EndColumn) { |
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| 70 | ColumnData = |
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| 71 | (static_cast<uint32_t>(StartColumn) & StartColumnMask) | |
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| 72 | ((static_cast<uint32_t>(EndColumn) << EndColumnShift) & EndColumnMask); |
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| 73 | } |
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| 74 | |||
| 75 | uint16_t getStartColumn() const { |
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| 76 | return static_cast<uint16_t>(ColumnData & StartColumnMask); |
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| 77 | } |
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| 78 | |||
| 79 | uint16_t getEndColumn() const { |
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| 80 | return static_cast<uint16_t>((ColumnData & EndColumnMask) >> |
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| 81 | EndColumnShift); |
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| 82 | } |
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| 83 | |||
| 84 | uint32_t getRawData() const { return ColumnData; } |
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| 85 | |||
| 86 | private: |
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| 87 | uint32_t ColumnData; |
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| 88 | }; |
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| 89 | |||
| 90 | class Line { |
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| 91 | private: |
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| 92 | int32_t CodeOffset; |
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| 93 | LineInfo LineInf; |
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| 94 | ColumnInfo ColumnInf; |
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| 95 | |||
| 96 | public: |
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| 97 | Line(int32_t CodeOffset, uint32_t StartLine, uint32_t EndLine, |
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| 98 | uint16_t StartColumn, uint16_t EndColumn, bool IsStatement) |
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| 99 | : CodeOffset(CodeOffset), LineInf(StartLine, EndLine, IsStatement), |
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| 100 | ColumnInf(StartColumn, EndColumn) {} |
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| 101 | |||
| 102 | Line(int32_t CodeOffset, LineInfo LineInf, ColumnInfo ColumnInf) |
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| 103 | : CodeOffset(CodeOffset), LineInf(LineInf), ColumnInf(ColumnInf) {} |
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| 104 | |||
| 105 | LineInfo getLineInfo() const { return LineInf; } |
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| 106 | |||
| 107 | ColumnInfo getColumnInfo() const { return ColumnInf; } |
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| 108 | |||
| 109 | int32_t getCodeOffset() const { return CodeOffset; } |
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| 110 | |||
| 111 | uint32_t getStartLine() const { return LineInf.getStartLine(); } |
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| 112 | |||
| 113 | uint32_t getLineDelta() const { return LineInf.getLineDelta(); } |
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| 114 | |||
| 115 | uint32_t getEndLine() const { return LineInf.getEndLine(); } |
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| 116 | |||
| 117 | uint16_t getStartColumn() const { return ColumnInf.getStartColumn(); } |
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| 118 | |||
| 119 | uint16_t getEndColumn() const { return ColumnInf.getEndColumn(); } |
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| 120 | |||
| 121 | bool isStatement() const { return LineInf.isStatement(); } |
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| 122 | |||
| 123 | bool isAlwaysStepInto() const { return LineInf.isAlwaysStepInto(); } |
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| 124 | |||
| 125 | bool isNeverStepInto() const { return LineInf.isNeverStepInto(); } |
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| 126 | }; |
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| 127 | |||
| 128 | } // namespace codeview |
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| 129 | } // namespace llvm |
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| 130 | |||
| 131 | #endif |