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| #ifndef _RSGTOKEN_HPP
| #define _RSGTOKEN_HPP
| /*-------------------------------------------------------------------------
| * drawElements Quality Program Random Shader Generator
| * ----------------------------------------------------
| *
| * Copyright 2014 The Android Open Source Project
| *
| * Licensed under the Apache License, Version 2.0 (the "License");
| * you may not use this file except in compliance with the License.
| * You may obtain a copy of the License at
| *
| * http://www.apache.org/licenses/LICENSE-2.0
| *
| * Unless required by applicable law or agreed to in writing, software
| * distributed under the License is distributed on an "AS IS" BASIS,
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| * See the License for the specific language governing permissions and
| * limitations under the License.
| *
| *//*!
| * \file
| * \brief Token class.
| *//*--------------------------------------------------------------------*/
|
| #include "rsgDefs.hpp"
|
| #include <vector>
|
| namespace rsg
| {
|
| class Token
| {
| public:
| enum Type
| {
| IDENTIFIER,
| STRUCT,
| INVARIANT,
| PRECISION,
| VOID,
| BREAK,
| CONTINUE,
| DO,
| WHILE,
| ELSE,
| FOR,
| IF,
| DISCARD,
| RETURN,
| INC_OP,
| DEC_OP,
| LEFT_PAREN,
| RIGHT_PAREN,
| LEFT_BRACKET, // [
| RIGHT_BRACKET, // ]
| LEFT_BRACE, // {
| RIGHT_BRACE, // }
| DOT,
| COMMA,
| COLON,
| SEMICOLON,
| MINUS,
| PLUS,
| MUL,
| DIV,
| MOD,
| QUESTION,
| BOOL,
| BVEC2,
| BVEC3,
| BVEC4,
| INT,
| IVEC2,
| IVEC3,
| IVEC4,
| FLOAT,
| VEC2,
| VEC3,
| VEC4,
| MAT2,
| MAT3,
| MAT4,
| SAMPLER2D,
| SAMPLERCUBE,
| FLOAT_LITERAL,
| INT_LITERAL,
| BOOL_LITERAL,
| EQUAL,
| MUL_ASSIGN,
| DIV_ASSIGN,
| ADD_ASSIGN,
| SUB_ASSIGN,
| CMP_LT,
| CMP_GT,
| CMP_LE,
| CMP_GE,
| CMP_EQ,
| CMP_NE,
| LOGICAL_AND,
| LOGICAL_OR,
| LOGICAL_NOT,
| LOGICAL_XOR,
| ATTRIBUTE,
| UNIFORM,
| VARYING,
| CONST,
| FLAT,
| HIGH_PRECISION,
| MEDIUM_PRECISION,
| LOW_PRECISION,
| IN,
| OUT,
| INOUT,
| LAYOUT,
| LOCATION,
|
| // Formatting only
| INDENT_INC,
| INDENT_DEC,
| NEWLINE,
|
| TYPE_LAST
| };
|
| Token (void);
| Token (Type type);
| Token (const char* identifier);
| Token (float value);
| Token (int value);
| Token (bool value);
| Token (const Token& other);
|
| ~Token (void);
|
| inline bool operator== (Type type) const { return m_type == type; }
| inline bool operator!= (Type type) const { return m_type != type; }
|
| bool operator== (const Token& other) const;
| bool operator!= (const Token& other) const;
|
| Token& operator= (const Token& other);
|
| inline Type getType (void) const { return m_type; }
|
| const char* getIdentifier (void) const;
| float getFloat (void) const;
| int getInt (void) const;
| bool getBool (void) const;
|
| private:
| Type m_type;
| union
| {
| char* identifier;
| float floatValue;
| int intValue;
| bool boolValue;
| } m_arg;
| };
|
|
| inline Token::Token (void)
| : m_type(TYPE_LAST)
| {
| m_arg.identifier = DE_NULL;
| }
|
| inline Token::Token (Type type)
| : m_type(type)
| {
| DE_ASSERT(type != IDENTIFIER);
| }
|
| inline Token::Token (float value)
| : m_type(FLOAT_LITERAL)
| {
| m_arg.floatValue = value;
| }
|
| inline Token::Token (int value)
| : m_type(INT_LITERAL)
| {
| m_arg.intValue = value;
| }
|
| inline Token::Token (bool value)
| : m_type(BOOL_LITERAL)
| {
| m_arg.boolValue = value;
| }
|
| inline bool Token::operator== (const Token& other) const
| {
| return !(*this != other);
| }
|
| inline const char* Token::getIdentifier (void) const
| {
| DE_ASSERT(m_type == IDENTIFIER);
| return m_arg.identifier;
| }
|
| inline float Token::getFloat (void) const
| {
| DE_ASSERT(m_type == FLOAT_LITERAL);
| return m_arg.floatValue;
| }
|
| inline int Token::getInt (void) const
| {
| DE_ASSERT(m_type == INT_LITERAL);
| return m_arg.intValue;
| }
|
| inline bool Token::getBool (void) const
| {
| DE_ASSERT(m_type == BOOL_LITERAL);
| return m_arg.boolValue;
| }
|
| class TokenStream
| {
| public:
| TokenStream (void);
| ~TokenStream (void);
|
| int getSize (void) const { return (int)m_numTokens; }
| const Token& operator[] (int ndx) const { return m_tokens[ndx]; }
|
| TokenStream& operator<< (const Token& token);
|
| private:
| enum
| {
| ALLOC_SIZE = 64
| };
|
| std::vector<Token> m_tokens;
| size_t m_numTokens;
| };
|
| inline TokenStream& TokenStream::operator<< (const Token& token)
| {
| if (m_tokens.size() == m_numTokens)
| m_tokens.resize(m_numTokens+ALLOC_SIZE);
|
| m_tokens[m_numTokens] = token;
| m_numTokens += 1;
|
| return *this;
| }
|
| } // rsg
|
| #endif // _RSGTOKEN_HPP
|
|
