Files
swift-mirror/lib/AST/ASTBridging.cpp
Erik Eckstein 22979b9a7a fix an uninitialized pointer in BridgedSourceLoc
It's so easy to run into undefined behavior in C++
2023-10-09 17:32:51 +02:00

83 lines
3.1 KiB
C++

//===--- ASTBridging.cpp - AST bridging functions -------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2022 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 "swift/AST/ASTBridging.h"
#include "swift/AST/DiagnosticEngine.h"
#include "swift/Basic/BridgingUtils.h"
using namespace swift;
namespace {
/// BridgedDiagnosticEngine -> DiagnosticEngine *.
DiagnosticEngine *getDiagnosticEngine(const BridgedDiagnosticEngine &bridged) {
return static_cast<DiagnosticEngine *>(bridged.object);
}
} // namespace
static_assert(sizeof(BridgedDiagnosticArgument) >= sizeof(DiagnosticArgument),
"BridgedDiagnosticArgument has wrong size");
BridgedDiagnosticArgument::BridgedDiagnosticArgument(SwiftInt i)
: BridgedDiagnosticArgument(DiagnosticArgument((int)i)) {}
BridgedDiagnosticArgument::BridgedDiagnosticArgument(BridgedStringRef s)
: BridgedDiagnosticArgument(DiagnosticArgument(s.get())) {}
static_assert(sizeof(BridgedDiagnosticFixIt) >= sizeof(DiagnosticInfo::FixIt),
"BridgedDiagnosticArgument has wrong size");
static SourceLoc getSourceLoc(BridgedSourceLoc bridgedLoc) {
return SourceLoc(llvm::SMLoc::getFromPointer(bridgedLoc.getLoc()));
}
BridgedDiagnosticFixIt::BridgedDiagnosticFixIt(BridgedSourceLoc start, uint32_t length, BridgedStringRef text)
: BridgedDiagnosticFixIt(DiagnosticInfo::FixIt(
CharSourceRange(getSourceLoc(start), length),
text.get(),
llvm::ArrayRef<DiagnosticArgument>())) {}
void DiagnosticEngine_diagnose(
BridgedDiagnosticEngine bridgedEngine, BridgedSourceLoc loc,
BridgedDiagID bridgedDiagID,
BridgedArrayRef /*BridgedDiagnosticArgument*/ bridgedArguments,
BridgedSourceLoc highlightStart, uint32_t hightlightLength,
BridgedArrayRef /*BridgedDiagnosticFixIt*/ bridgedFixIts) {
auto *D = getDiagnosticEngine(bridgedEngine);
auto diagID = static_cast<DiagID>(bridgedDiagID);
SmallVector<DiagnosticArgument, 2> arguments;
for (auto arg : getArrayRef<BridgedDiagnosticArgument>(bridgedArguments)) {
arguments.push_back(arg.get());
}
auto inflight = D->diagnose(SourceLoc(llvm::SMLoc::getFromPointer(loc.getLoc())), diagID, arguments);
// Add highlight.
if (highlightStart.isValid()) {
CharSourceRange highlight(getSourceLoc(highlightStart), (unsigned)hightlightLength);
inflight.highlightChars(highlight.getStart(), highlight.getEnd());
}
// Add fix-its.
for (const BridgedDiagnosticFixIt &fixIt : getArrayRef<BridgedDiagnosticFixIt>(bridgedFixIts)) {
auto range = fixIt.get().getRange();
auto text = fixIt.get().getText();
inflight.fixItReplaceChars(range.getStart(), range.getEnd(), text);
}
}
bool DiagnosticEngine_hadAnyError(BridgedDiagnosticEngine bridgedEngine) {
auto *D = getDiagnosticEngine(bridgedEngine);
return D->hadAnyError();
}