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//===- Line.h ---------------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEBUGINFO_CODEVIEW_LINE_H
#define LLVM_DEBUGINFO_CODEVIEW_LINE_H
#include "llvm/Support/Endian.h"
#include <cinttypes>
namespace llvm {
namespace codeview {
using llvm::support::ulittle32_t;
class LineInfo {
public:
enum : uint32_t {
AlwaysStepIntoLineNumber = 0xfeefee,
NeverStepIntoLineNumber = 0xf00f00
};
enum : int { EndLineDeltaShift = 24 };
enum : uint32_t {
StartLineMask = 0x00ffffff,
EndLineDeltaMask = 0x7f000000,
StatementFlag = 0x80000000u
};
LineInfo(uint32_t StartLine, uint32_t EndLine, bool IsStatement);
LineInfo(uint32_t LineData) : LineData(LineData) {}
uint32_t getStartLine() const { return LineData & StartLineMask; }
uint32_t getLineDelta() const {
return (LineData & EndLineDeltaMask) >> EndLineDeltaShift;
}
uint32_t getEndLine() const { return getStartLine() + getLineDelta(); }
bool isStatement() const { return (LineData & StatementFlag) != 0; }
uint32_t getRawData() const { return LineData; }
bool isAlwaysStepInto() const {
return getStartLine() == AlwaysStepIntoLineNumber;
}
bool isNeverStepInto() const {
return getStartLine() == NeverStepIntoLineNumber;
}
private:
uint32_t LineData;
};
class ColumnInfo {
private:
static const uint32_t StartColumnMask = 0x0000ffffu;
static const uint32_t EndColumnMask = 0xffff0000u;
static const int EndColumnShift = 16;
public:
ColumnInfo(uint16_t StartColumn, uint16_t EndColumn) {
ColumnData =
(static_cast<uint32_t>(StartColumn) & StartColumnMask) |
((static_cast<uint32_t>(EndColumn) << EndColumnShift) & EndColumnMask);
}
uint16_t getStartColumn() const {
return static_cast<uint16_t>(ColumnData & StartColumnMask);
}
uint16_t getEndColumn() const {
return static_cast<uint16_t>((ColumnData & EndColumnMask) >>
EndColumnShift);
}
uint32_t getRawData() const { return ColumnData; }
private:
uint32_t ColumnData;
};
class Line {
private:
int32_t CodeOffset;
LineInfo LineInf;
ColumnInfo ColumnInf;
public:
Line(int32_t CodeOffset, uint32_t StartLine, uint32_t EndLine,
uint16_t StartColumn, uint16_t EndColumn, bool IsStatement)
: CodeOffset(CodeOffset), LineInf(StartLine, EndLine, IsStatement),
ColumnInf(StartColumn, EndColumn) {}
Line(int32_t CodeOffset, LineInfo LineInf, ColumnInfo ColumnInf)
: CodeOffset(CodeOffset), LineInf(LineInf), ColumnInf(ColumnInf) {}
LineInfo getLineInfo() const { return LineInf; }
ColumnInfo getColumnInfo() const { return ColumnInf; }
int32_t getCodeOffset() const { return CodeOffset; }
uint32_t getStartLine() const { return LineInf.getStartLine(); }
uint32_t getLineDelta() const { return LineInf.getLineDelta(); }
uint32_t getEndLine() const { return LineInf.getEndLine(); }
uint16_t getStartColumn() const { return ColumnInf.getStartColumn(); }
uint16_t getEndColumn() const { return ColumnInf.getEndColumn(); }
bool isStatement() const { return LineInf.isStatement(); }
bool isAlwaysStepInto() const { return LineInf.isAlwaysStepInto(); }
bool isNeverStepInto() const { return LineInf.isNeverStepInto(); }
};
} // namespace codeview
} // namespace llvm
#endif
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