| /* |
| * Copyright 2021 Google LLC. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_POSITION |
| #define SKSL_POSITION |
| |
| #include "include/core/SkTypes.h" |
| #include <cinttypes> |
| #include <string> |
| |
| #ifndef __has_builtin |
| #define __has_builtin(x) 0 |
| #endif |
| |
| namespace SkSL { |
| |
| class Position { |
| public: |
| Position() |
| : fStartOffsetOrLine(-1) |
| , fEndOffset(-1) {} |
| |
| static Position Line(int line) { |
| Position result; |
| result.fStartOffsetOrLine = line; |
| result.fEndOffset = -1; |
| return result; |
| } |
| |
| static Position Range(int startOffset, int endOffset) { |
| Position result; |
| result.fStartOffsetOrLine = startOffset; |
| result.fEndOffset = endOffset; |
| return result; |
| } |
| |
| #if __has_builtin(__builtin_FILE) && __has_builtin(__builtin_LINE) |
| static Position Capture(const char* file = __builtin_FILE(), int line = __builtin_LINE()); |
| #else |
| static Position Capture() { return Position(); } |
| #endif // __has_builtin(__builtin_FILE) && __has_builtin(__builtin_LINE) |
| |
| bool valid() const { |
| return fStartOffsetOrLine != -1; |
| } |
| |
| int line(std::string_view source = std::string_view()) const; |
| |
| int startOffset() const { |
| SkASSERT(fEndOffset != -1); |
| return fStartOffsetOrLine; |
| } |
| |
| int endOffset() const { |
| SkASSERT(fEndOffset != -1); |
| return fEndOffset; |
| } |
| |
| bool operator==(const Position& other) const { |
| return fStartOffsetOrLine == other.fStartOffsetOrLine && |
| fEndOffset == other.fEndOffset; |
| } |
| |
| bool operator!=(const Position& other) const { |
| return !(*this == other); |
| } |
| |
| bool operator>(const Position& other) const { |
| return fStartOffsetOrLine > other.fStartOffsetOrLine; |
| } |
| |
| bool operator>=(const Position& other) const { |
| return fStartOffsetOrLine >= other.fStartOffsetOrLine; |
| } |
| |
| bool operator<(const Position& other) const { |
| return fStartOffsetOrLine < other.fStartOffsetOrLine; |
| } |
| |
| bool operator<=(const Position& other) const { |
| return fStartOffsetOrLine <= other.fStartOffsetOrLine; |
| } |
| |
| private: |
| // Contains either a start offset (if fEndOffset != -1) or a line number (if fEndOffset == -1) |
| int32_t fStartOffsetOrLine; |
| int32_t fEndOffset; |
| }; |
| |
| } // namespace SkSL |
| |
| #endif |