Alexander Markov
f9860f9db9
dart2bytecode can optionally add source position information (including line starts) to the generated bytecode (when '--bytecode-options=source-positions' flag is specified). If bytecode has source positions, they are now shown in stack traces involving interpreter frames. TEST=ci Change-Id: I1ae3326bac21201040be32c712514e71e96f51e2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/433760 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
// Copyright (c) 2025, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#ifndef RUNTIME_VM_LINE_STARTS_READER_H_
|
|
#define RUNTIME_VM_LINE_STARTS_READER_H_
|
|
|
|
#if !defined(DART_PRECOMPILED_RUNTIME) || defined(DART_DYNAMIC_MODULES)
|
|
|
|
#include <memory>
|
|
|
|
#include "platform/assert.h"
|
|
#include "vm/allocation.h"
|
|
#include "vm/globals.h"
|
|
#include "vm/growable_array.h"
|
|
#include "vm/object.h"
|
|
#include "vm/token_position.h"
|
|
|
|
namespace dart {
|
|
|
|
class LineStartsReader : public ValueObject {
|
|
public:
|
|
explicit LineStartsReader(const TypedData& line_starts_data);
|
|
|
|
uint32_t At(intptr_t index) const {
|
|
if (element_type_ == kUint16ArrayElement) {
|
|
return line_starts_data_.GetUint16(index << 1);
|
|
} else {
|
|
ASSERT(element_type_ == kUint32ArrayElement);
|
|
return line_starts_data_.GetUint32(index << 2);
|
|
}
|
|
}
|
|
|
|
uint32_t MaxPosition() const;
|
|
|
|
// Returns whether the given offset corresponds to a valid source offset
|
|
// If it does, then *line and *column (if column is not nullptr) are set
|
|
// to the line and column the token starts at.
|
|
DART_WARN_UNUSED_RESULT bool LocationForPosition(
|
|
intptr_t position,
|
|
intptr_t* line,
|
|
intptr_t* col = nullptr) const;
|
|
|
|
// Returns whether any tokens were found for the given line. When found,
|
|
// *first_token_index and *last_token_index are set to the first and
|
|
// last token on the line, respectively.
|
|
DART_WARN_UNUSED_RESULT bool TokenRangeAtLine(
|
|
intptr_t line_number,
|
|
TokenPosition* first_token_index,
|
|
TokenPosition* last_token_index) const;
|
|
|
|
private:
|
|
const TypedData& line_starts_data_;
|
|
const TypedDataElementType element_type_;
|
|
};
|
|
|
|
} // namespace dart
|
|
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME) || defined(DART_DYNAMIC_MODULES)
|
|
#endif // RUNTIME_VM_LINE_STARTS_READER_H_
|