1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
//===--- SourceCode.h - Manipulating source code as strings -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Various code that examines C++ source code without using heavy AST machinery
// (and often not even the lexer). To be used sparingly!
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_SOURCECODE_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_SOURCECODE_H
#include "Protocol.h"
#include "clang/Basic/SourceLocation.h"
namespace clang {
class SourceManager;
namespace clangd {
/// Turn a [line, column] pair into an offset in Code.
///
/// If P.character exceeds the line length, returns the offset at end-of-line.
/// (If !AllowColumnsBeyondLineLength, then returns an error instead).
/// If the line number is out of range, returns an error.
///
/// The returned value is in the range [0, Code.size()].
llvm::Expected<size_t>
positionToOffset(llvm::StringRef Code, Position P,
bool AllowColumnsBeyondLineLength = true);
/// Turn an offset in Code into a [line, column] pair.
/// The offset must be in range [0, Code.size()].
Position offsetToPosition(llvm::StringRef Code, size_t Offset);
/// Turn a SourceLocation into a [line, column] pair.
/// FIXME: This should return an error if the location is invalid.
Position sourceLocToPosition(const SourceManager &SM, SourceLocation Loc);
// Converts a half-open clang source range to an LSP range.
// Note that clang also uses closed source ranges, which this can't handle!
Range halfOpenToRange(const SourceManager &SM, CharSourceRange R);
// Converts an offset to a clang line/column (1-based, columns are bytes).
// The offset must be in range [0, Code.size()].
// Prefer to use SourceManager if one is available.
std::pair<size_t, size_t> offsetToClangLineColumn(llvm::StringRef Code,
size_t Offset);
/// From "a::b::c", return {"a::b::", "c"}. Scope is empty if there's no
/// qualifier.
std::pair<llvm::StringRef, llvm::StringRef>
splitQualifiedName(llvm::StringRef QName);
} // namespace clangd
} // namespace clang
#endif
|
