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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "NullEditorConsumer.h"
#include "SourceKit/Core/Context.h"
#include "SourceKit/Core/LangSupport.h"
#include "SourceKit/Core/NotificationCenter.h"
#include "SourceKit/Support/Concurrency.h"
#include "SourceKit/SwiftLang/Factory.h"
#include "swift/Basic/LLVMInitialize.h"
#include "gtest/gtest.h"
#include <chrono>
#include <condition_variable>
#include <mutex>
#include <thread>
using namespace SourceKit;
using namespace llvm;
static StringRef getRuntimeLibPath() {
return sys::path::parent_path(SWIFTLIB_DIR);
}
static SmallString<128> getSwiftExecutablePath() {
SmallString<128> path = sys::path::parent_path(getRuntimeLibPath());
sys::path::append(path, "bin", "swift-frontend");
return path;
}
namespace {
class CompileTrackingConsumer final : public trace::TraceConsumer {
std::mutex Mtx;
std::condition_variable CV;
bool HasStarted = false;
public:
CompileTrackingConsumer() {}
CompileTrackingConsumer(const CompileTrackingConsumer &) = delete;
void operationStarted(uint64_t OpId, trace::OperationKind OpKind,
const trace::SwiftInvocation &Inv,
const trace::StringPairs &OpArgs) override {
std::unique_lock<std::mutex> lk(Mtx);
HasStarted = true;
CV.notify_all();
}
void waitForBuildToStart() {
std::unique_lock<std::mutex> lk(Mtx);
auto secondsToWait = std::chrono::seconds(20);
auto when = std::chrono::system_clock::now() + secondsToWait;
CV.wait_until(lk, when, [&]() { return HasStarted; });
HasStarted = false;
}
void operationFinished(uint64_t OpId, trace::OperationKind OpKind,
ArrayRef<DiagnosticEntryInfo> Diagnostics) override {}
swift::OptionSet<trace::OperationKind> desiredOperations() override {
return trace::OperationKind::PerformSema;
}
};
class CloseTest : public ::testing::Test {
std::shared_ptr<SourceKit::Context> Ctx;
std::shared_ptr<CompileTrackingConsumer> CompileTracker;
NullEditorConsumer Consumer;
public:
CloseTest() {
INITIALIZE_LLVM();
Ctx = std::make_shared<SourceKit::Context>(
getSwiftExecutablePath(), getRuntimeLibPath(),
/*diagnosticDocumentationPath*/ "", SourceKit::createSwiftLangSupport,
/*dispatchOnMain=*/false);
}
CompileTrackingConsumer &getCompileTracker() const { return *CompileTracker; }
LangSupport &getLang() { return Ctx->getSwiftLangSupport(); }
void SetUp() override {
CompileTracker = std::make_shared<CompileTrackingConsumer>();
trace::registerConsumer(CompileTracker.get());
}
void TearDown() override {
trace::unregisterConsumer(CompileTracker.get());
CompileTracker = nullptr;
}
void open(const char *DocName, StringRef Text, ArrayRef<const char *> CArgs) {
auto Args = makeArgs(DocName, CArgs);
auto Buf = MemoryBuffer::getMemBufferCopy(Text, DocName);
getLang().editorOpen(DocName, Buf.get(), Consumer, Args, std::nullopt);
}
void close(const char *DocName, bool CancelBuilds, bool RemoveCache) {
getLang().editorClose(DocName, CancelBuilds, RemoveCache);
}
void getDiagnosticsAsync(
const char *DocName, ArrayRef<const char *> CArgs,
std::function<void(const RequestResult<DiagnosticsResult> &)> callback) {
auto Args = makeArgs(DocName, CArgs);
getLang().getDiagnostics(DocName, Args, /*VFSOpts*/ std::nullopt,
/*CancelToken*/ {}, callback);
}
private:
std::vector<const char *> makeArgs(const char *DocName,
ArrayRef<const char *> CArgs) {
std::vector<const char *> Args = CArgs;
Args.push_back(DocName);
return Args;
}
};
} // end anonymous namespace
static const char *getComplexSourceText() {
// best of luck, type-checker
return
"struct A: ExpressibleByIntegerLiteral { init(integerLiteral value: Int) {} }\n"
"struct B: ExpressibleByIntegerLiteral { init(integerLiteral value: Int) {} }\n"
"struct C: ExpressibleByIntegerLiteral { init(integerLiteral value: Int) {} }\n"
"func + (lhs: A, rhs: B) -> A { fatalError() }\n"
"func + (lhs: B, rhs: C) -> A { fatalError() }\n"
"func + (lhs: C, rhs: A) -> A { fatalError() }\n"
"func + (lhs: B, rhs: A) -> B { fatalError() }\n"
"func + (lhs: C, rhs: B) -> B { fatalError() }\n"
"func + (lhs: A, rhs: C) -> B { fatalError() }\n"
"func + (lhs: C, rhs: B) -> C { fatalError() }\n"
"func + (lhs: B, rhs: C) -> C { fatalError() }\n"
"func + (lhs: A, rhs: A) -> C { fatalError() }\n"
"let x: C = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8\n";
}
TEST_F(CloseTest, Cancel) {
const char *DocName = "test.swift";
auto *Contents = getComplexSourceText();
const char *Args[] = {"-parse-as-library"};
// Test twice with RemoveCache = false to test both the prior state of
// the ASTProducer being cached and not cached.
for (auto RemoveCache : {true, false, false}) {
open(DocName, Contents, Args);
Semaphore BuildResultSema(0);
getDiagnosticsAsync(DocName, Args,
[&](const RequestResult<DiagnosticsResult> &Result) {
EXPECT_TRUE(Result.isCancelled());
BuildResultSema.signal();
});
getCompileTracker().waitForBuildToStart();
close(DocName, /*CancelBuilds*/ true, RemoveCache);
bool Expired = BuildResultSema.wait(30 * 1000);
if (Expired)
llvm::report_fatal_error("Did not receive a response for the request");
}
}
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