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8d85c96e0e
The latter form is now preferred to be similar to C++20 starts_with. This replacement also removes one function call when startswith is not inlined.
67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
//===- Reproduce.cpp - Utilities for creating reproducers -----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lld/Common/Reproduce.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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using namespace lld;
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using namespace llvm;
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using namespace llvm::sys;
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// Makes a given pathname an absolute path first, and then remove
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// beginning /. For example, "../foo.o" is converted to "home/john/foo.o",
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// assuming that the current directory is "/home/john/bar".
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// Returned string is a forward slash separated path even on Windows to avoid
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// a mess with backslash-as-escape and backslash-as-path-separator.
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std::string lld::relativeToRoot(StringRef path) {
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SmallString<128> abs = path;
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if (fs::make_absolute(abs))
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return std::string(path);
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path::remove_dots(abs, /*remove_dot_dot=*/true);
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// This is Windows specific. root_name() returns a drive letter
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// (e.g. "c:") or a UNC name (//net). We want to keep it as part
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// of the result.
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SmallString<128> res;
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StringRef root = path::root_name(abs);
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if (root.ends_with(":"))
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res = root.drop_back();
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else if (root.starts_with("//"))
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res = root.substr(2);
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path::append(res, path::relative_path(abs));
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return path::convert_to_slash(res);
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}
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// Quote a given string if it contains a space character.
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std::string lld::quote(StringRef s) {
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if (s.contains(' '))
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return ("\"" + s + "\"").str();
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return std::string(s);
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}
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// Converts an Arg to a string representation suitable for a response file.
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// To show an Arg in a diagnostic, use Arg::getAsString() instead.
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std::string lld::toString(const opt::Arg &arg) {
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std::string k = std::string(arg.getSpelling());
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if (arg.getNumValues() == 0)
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return k;
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std::string v;
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for (size_t i = 0; i < arg.getNumValues(); ++i) {
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if (i > 0)
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v.push_back(' ');
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v += quote(arg.getValue(i));
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}
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if (arg.getOption().getRenderStyle() == opt::Option::RenderJoinedStyle)
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return k + v;
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return k + " " + v;
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}
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