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// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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#ifndef SRC_TINT_UTILS_DIAGNOSTIC_FORMATTER_H_
#define SRC_TINT_UTILS_DIAGNOSTIC_FORMATTER_H_
#include <string>
namespace tint::diag {
class Diagnostic;
class List;
class Printer;
/// Formatter are used to print a list of diagnostics messages.
class Formatter {
public:
/// Style controls the formatter's output style.
struct Style {
/// include the file path for each diagnostic
bool print_file = true;
/// include the severity for each diagnostic
bool print_severity = true;
/// include the source line(s) for the diagnostic
bool print_line = true;
/// print a newline at the end of a diagnostic list
bool print_newline_at_end = true;
/// width of a tab character
size_t tab_width = 2u;
};
/// Constructor for the formatter using a default style.
Formatter();
/// Constructor for the formatter using the custom style.
/// @param style the style used for the formatter.
explicit Formatter(const Style& style);
~Formatter();
/// @param list the list of diagnostic messages to format
/// @param printer the printer used to display the formatted diagnostics
void format(const List& list, Printer* printer) const;
/// @return the list of diagnostics `list` formatted to a string.
/// @param list the list of diagnostic messages to format
std::string format(const List& list) const;
private:
struct State;
void format(const Diagnostic& diag, State& state) const;
const Style style_;
};
} // namespace tint::diag
#endif // SRC_TINT_UTILS_DIAGNOSTIC_FORMATTER_H_