96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
//===--- Annotations.cpp - Annotated source code for unit tests --*- 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 "llvm/Testing/Support/Annotations.h"
|
|
|
|
#include "llvm/ADT/StringExtras.h"
|
|
#include "llvm/Support/FormatVariadic.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
using namespace llvm;
|
|
|
|
// Crash if the assertion fails, printing the message and testcase.
|
|
// More elegant error handling isn't needed for unit tests.
|
|
static void require(bool Assertion, const char *Msg, llvm::StringRef Code) {
|
|
if (!Assertion) {
|
|
llvm::errs() << "Annotated testcase: " << Msg << "\n" << Code << "\n";
|
|
llvm_unreachable("Annotated testcase assertion failed!");
|
|
}
|
|
}
|
|
|
|
Annotations::Annotations(llvm::StringRef Text) {
|
|
auto Require = [Text](bool Assertion, const char *Msg) {
|
|
require(Assertion, Msg, Text);
|
|
};
|
|
llvm::Optional<llvm::StringRef> Name;
|
|
llvm::SmallVector<std::pair<llvm::StringRef, size_t>, 8> OpenRanges;
|
|
|
|
Code.reserve(Text.size());
|
|
while (!Text.empty()) {
|
|
if (Text.consume_front("^")) {
|
|
Points[Name.getValueOr("")].push_back(Code.size());
|
|
Name = llvm::None;
|
|
continue;
|
|
}
|
|
if (Text.consume_front("[[")) {
|
|
OpenRanges.emplace_back(Name.getValueOr(""), Code.size());
|
|
Name = llvm::None;
|
|
continue;
|
|
}
|
|
Require(!Name, "$name should be followed by ^ or [[");
|
|
if (Text.consume_front("]]")) {
|
|
Require(!OpenRanges.empty(), "unmatched ]]");
|
|
Range R;
|
|
R.Begin = OpenRanges.back().second;
|
|
R.End = Code.size();
|
|
Ranges[OpenRanges.back().first].push_back(R);
|
|
OpenRanges.pop_back();
|
|
continue;
|
|
}
|
|
if (Text.consume_front("$")) {
|
|
Name = Text.take_while(llvm::isAlnum);
|
|
Text = Text.drop_front(Name->size());
|
|
continue;
|
|
}
|
|
Code.push_back(Text.front());
|
|
Text = Text.drop_front();
|
|
}
|
|
Require(!Name, "unterminated $name");
|
|
Require(OpenRanges.empty(), "unmatched [[");
|
|
}
|
|
|
|
size_t Annotations::point(llvm::StringRef Name) const {
|
|
auto I = Points.find(Name);
|
|
require(I != Points.end() && I->getValue().size() == 1,
|
|
"expected exactly one point", Code);
|
|
return I->getValue()[0];
|
|
}
|
|
|
|
std::vector<size_t> Annotations::points(llvm::StringRef Name) const {
|
|
auto P = Points.lookup(Name);
|
|
return {P.begin(), P.end()};
|
|
}
|
|
|
|
Annotations::Range Annotations::range(llvm::StringRef Name) const {
|
|
auto I = Ranges.find(Name);
|
|
require(I != Ranges.end() && I->getValue().size() == 1,
|
|
"expected exactly one range", Code);
|
|
return I->getValue()[0];
|
|
}
|
|
|
|
std::vector<Annotations::Range>
|
|
Annotations::ranges(llvm::StringRef Name) const {
|
|
auto R = Ranges.lookup(Name);
|
|
return {R.begin(), R.end()};
|
|
}
|
|
|
|
llvm::raw_ostream &llvm::operator<<(llvm::raw_ostream &O,
|
|
const llvm::Annotations::Range &R) {
|
|
return O << llvm::formatv("[{0}, {1})", R.Begin, R.End);
|
|
}
|