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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include <vector>
#include "base/strings/string_piece.h"
#include "headless/public/headless_export.h"
namespace headless {
// Tracks errors which are encountered while parsing client API types. Note that
// errors are only reported in debug builds (i.e., when DCHECK is enabled).
class HEADLESS_EXPORT ErrorReporter {
// Enter a new nested parsing context. It will initially have a null name.
void Push();
// Leave the current parsing context, returning to the previous one.
void Pop();
// Set the name of the current parsing context. |name| must be a string with
// application lifetime.
void SetName(const char* name);
// Report an error in the current parsing context.
void AddError(base::StringPiece description);
// Returns true if any errors have been reported so far.
bool HasErrors() const;
// Returns a list of reported errors.
const std::vector<std::string>& errors() const { return errors_; }
// Returns a string containing all the errors concatenated together.
std::string ToString() const;
#else // DCHECK_IS_ON()
void Push() {}
void Pop() {}
void SetName(const char* name) {}
void AddError(base::StringPiece description) {}
bool HasErrors() const { return false; }
std::vector<std::string> errors() const { return {}; }
std::string ToString() const { return ""; }
#endif // DCHECK_IS_ON()
std::vector<const char*> path_;
std::vector<std::string> errors_;
} // namespace headless