blob: d6686d2b1084a7cab4fe294b51e80494b8f5dccd (
plain)
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
|
//===--- SymbolID.cpp --------------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
#include "SymbolID.h"
#include "support/Logger.h"
#include "llvm/Support/SHA1.h"
namespace clang {
namespace clangd {
SymbolID::SymbolID(llvm::StringRef USR) {
auto Hash = llvm::SHA1::hash(llvm::arrayRefFromStringRef(USR));
static_assert(sizeof(Hash) >= RawSize, "RawSize larger than SHA1");
memcpy(HashValue.data(), Hash.data(), RawSize);
}
llvm::StringRef SymbolID::raw() const {
return llvm::StringRef(reinterpret_cast<const char *>(HashValue.data()),
RawSize);
}
SymbolID SymbolID::fromRaw(llvm::StringRef Raw) {
SymbolID ID;
assert(Raw.size() == RawSize);
memcpy(ID.HashValue.data(), Raw.data(), RawSize);
return ID;
}
std::string SymbolID::str() const { return llvm::toHex(raw()); }
llvm::Expected<SymbolID> SymbolID::fromStr(llvm::StringRef Str) {
if (Str.size() != RawSize * 2)
return error("Bad ID length");
for (char C : Str)
if (!llvm::isHexDigit(C))
return error("Bad hex ID");
return fromRaw(llvm::fromHex(Str));
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const SymbolID &ID) {
return OS << llvm::toHex(ID.raw());
}
} // namespace clangd
} // namespace clang
|
