| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| /***************************************************************************************** |
| ******************** This file was generated by sksllex. Do not edit. ******************* |
| *****************************************************************************************/ |
| #ifndef SKSL_Lexer |
| #define SKSL_Lexer |
| #include <cstdint> |
| #include <string_view> |
| namespace SkSL { |
| |
| struct Token { |
| enum class Kind { |
| TK_END_OF_FILE, |
| TK_FLOAT_LITERAL, |
| TK_INT_LITERAL, |
| TK_BAD_OCTAL, |
| TK_TRUE_LITERAL, |
| TK_FALSE_LITERAL, |
| TK_IF, |
| TK_STATIC_IF, |
| TK_ELSE, |
| TK_FOR, |
| TK_WHILE, |
| TK_DO, |
| TK_SWITCH, |
| TK_STATIC_SWITCH, |
| TK_CASE, |
| TK_DEFAULT, |
| TK_BREAK, |
| TK_CONTINUE, |
| TK_DISCARD, |
| TK_RETURN, |
| TK_IN, |
| TK_OUT, |
| TK_INOUT, |
| TK_UNIFORM, |
| TK_CONST, |
| TK_FLAT, |
| TK_NOPERSPECTIVE, |
| TK_INLINE, |
| TK_NOINLINE, |
| TK_PURE, |
| TK_READONLY, |
| TK_WRITEONLY, |
| TK_BUFFER, |
| TK_STRUCT, |
| TK_LAYOUT, |
| TK_HIGHP, |
| TK_MEDIUMP, |
| TK_LOWP, |
| TK_ES3, |
| TK_THREADGROUP, |
| TK_RESERVED, |
| TK_IDENTIFIER, |
| TK_DIRECTIVE, |
| TK_LPAREN, |
| TK_RPAREN, |
| TK_LBRACE, |
| TK_RBRACE, |
| TK_LBRACKET, |
| TK_RBRACKET, |
| TK_DOT, |
| TK_COMMA, |
| TK_PLUSPLUS, |
| TK_MINUSMINUS, |
| TK_PLUS, |
| TK_MINUS, |
| TK_STAR, |
| TK_SLASH, |
| TK_PERCENT, |
| TK_SHL, |
| TK_SHR, |
| TK_BITWISEOR, |
| TK_BITWISEXOR, |
| TK_BITWISEAND, |
| TK_BITWISENOT, |
| TK_LOGICALOR, |
| TK_LOGICALXOR, |
| TK_LOGICALAND, |
| TK_LOGICALNOT, |
| TK_QUESTION, |
| TK_COLON, |
| TK_EQ, |
| TK_EQEQ, |
| TK_NEQ, |
| TK_GT, |
| TK_LT, |
| TK_GTEQ, |
| TK_LTEQ, |
| TK_PLUSEQ, |
| TK_MINUSEQ, |
| TK_STAREQ, |
| TK_SLASHEQ, |
| TK_PERCENTEQ, |
| TK_SHLEQ, |
| TK_SHREQ, |
| TK_BITWISEOREQ, |
| TK_BITWISEXOREQ, |
| TK_BITWISEANDEQ, |
| TK_SEMICOLON, |
| TK_WHITESPACE, |
| TK_LINE_COMMENT, |
| TK_BLOCK_COMMENT, |
| TK_INVALID, |
| TK_NONE, |
| }; |
| |
| Token() {} |
| Token(Kind kind, int32_t offset, int32_t length) |
| : fKind(kind), fOffset(offset), fLength(length) {} |
| |
| Kind fKind = Kind::TK_NONE; |
| int32_t fOffset = -1; |
| int32_t fLength = -1; |
| }; |
| |
| class Lexer { |
| public: |
| void start(std::string_view text) { |
| fText = text; |
| fOffset = 0; |
| } |
| |
| Token next(); |
| |
| struct Checkpoint { |
| int32_t fOffset; |
| }; |
| |
| Checkpoint getCheckpoint() const { return {fOffset}; } |
| |
| void rewindToCheckpoint(Checkpoint checkpoint) { fOffset = checkpoint.fOffset; } |
| |
| private: |
| std::string_view fText; |
| int32_t fOffset; |
| }; |
| |
| } // namespace SkSL |
| #endif |