101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
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// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_SOURCE_H_
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#define SRC_SOURCE_H_
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#include <stddef.h>
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#include <string>
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#include <vector>
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namespace tint {
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/// Source describes a range of characters within a source file.
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class Source {
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public:
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/// File describes a source file, including path and content.
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class File {
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public:
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/// Constructs the File with the given file path and content.
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/// @param file_path the path for this file
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/// @param file_content the file contents
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File(const std::string& file_path, const std::string& file_content);
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~File();
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/// file path (optional)
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const std::string path;
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/// file content
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const std::string content;
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/// |content| split by lines
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const std::vector<std::string> lines;
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};
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/// Location holds a 1-based line and column index.
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class Location {
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public:
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/// the 1-based line number. 0 represents no line information.
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size_t line = 0;
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/// the 1-based column number. 0 represents no column information.
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size_t column = 0;
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};
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/// Range holds a Location interval described by [begin, end).
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class Range {
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public:
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/// Constructs a zero initialized Range.
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inline Range() = default;
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/// Constructs a zero-length Range starting at |loc|.
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/// @param loc the start and end location for the range.
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inline explicit Range(const Location& loc) : begin(loc), end(loc) {}
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/// Constructs the Range beginning at |b| and ending at |e|.
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/// @param b the range start location.
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/// @param e the range end location.
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inline Range(const Location& b, const Location& e) : begin(b), end(e) {}
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/// The location of the first character in the range.
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Location begin;
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/// The location of one-past the last character in the range.
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Location end;
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};
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/// Constructs the Source with an zero initialized Range and null File.
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inline Source() = default;
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/// Constructs the Source with the Range |rng| and a null File.
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/// @param rng the source range
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inline explicit Source(const Range& rng) : range(rng) {}
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/// Constructs the Source with the Range |loc| and a null File.
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/// @param loc the start and end location for the source range
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inline explicit Source(const Location& loc) : range(Range(loc)) {}
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/// Constructs the Source with the Range |rng| and File |f|.
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/// @param rng the source range
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/// @param f the source file
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inline Source(const Range& rng, File const* f) : range(rng), file(f) {}
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/// range is the span of text this source refers to in |file|
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Range range;
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/// file is the source file this source refers to
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File const* file = nullptr;
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};
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} // namespace tint
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#endif // SRC_SOURCE_H_
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