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basic_type.h Go to the documentation of this file. // $Id: basic_type.h,v 1.9 2003/08/11 17:13:57 abrown Exp $ // ---------------------------------------------------------------------- // // C-Breeze // C Compiler Framework // // Copyright (c) 2000 University of Texas at Austin // // Samuel Z. Guyer // Daniel A. Jimenez // Calvin Lin // // Permission is hereby granted, free of charge, to any person // obtaining a copy of this software and associated documentation // files (the "Software"), to deal in the Software without // restriction, including without limitation the rights to use, copy, // modify, merge, publish, distribute, sublicense, and/or sell copies // of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT // AUSTIN BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF // OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // // We acknowledge the C-to-C Translator from MIT Laboratory for // Computer Science for inspiring parts of the C-Breeze design. // // ---------------------------------------------------------------------- #ifndef CBZ_BASIC_TYPE_H #define CBZ_BASIC_TYPE_H #include "coord.h" class basic_type { private: // -- PRIVATE: Global values for basic type fields... // -- Basic types static const unsigned int NO_TYPE, INT, CHAR, FLOAT, VOID, ELLIPSIS; // -- Length static const unsigned int NO_LENGTH, SHORT, LONG, LONGLONG; // -- Sign (NOTE: it defaults to signed) static const unsigned int NO_SIGN, SIGNED, UNSIGNED; // -- Used in parsing only static const unsigned int PARSE_ONLY; public: // -- PUBLIC: Predefined global basic data types... static const basic_type Void; static const basic_type Ellipsis; static const basic_type SChar, UChar; static const basic_type SShort, UShort, SInt, UInt, SLong, ULong; static const basic_type SLongLong, ULongLong; static const basic_type Float, Double, LongDouble; // -- For parsing only... static const basic_type Char, Int; static const basic_type Signed, Unsigned; static const basic_type Short, Long, LongLong; static const basic_type IntParseOnly; // -- Sizes and alignments static const unsigned int TARGET_MAX_UCHAR, TARGET_MAX_INT, TARGET_MAX_UINT, TARGET_MAX_LONG, TARGET_MAX_ULONG; static const unsigned int CHAR_SIZE, CHAR_ALIGN, SHORT_SIZE, SHORT_ALIGN, INT_SIZE, INT_ALIGN, FLOAT_SIZE, FLOAT_ALIGN, DOUBLE_SIZE, DOUBLE_ALIGN, LONGDOUBLE_SIZE, LONGDOUBLE_ALIGN, LONG_SIZE, LONG_ALIGN, /* LONGLONG_SIZE, LONGLONG_ALIGN, */ POINTER_SIZE, POINTER_ALIGN, BYTE_LENGTH, WORD_LENGTH; private: unsigned int _base_type:3; unsigned int _length:2; unsigned int _sign:2; unsigned int _parse_only:1; inline unsigned int base_type() const { return _base_type; } inline void base_type(unsigned int bt) { _base_type = bt; } inline unsigned int length() const { return _length; } inline void length(unsigned int l) { _length = l; } inline unsigned int sign() const { return _sign; } inline void sign(unsigned int s) { _sign = s; } public: basic_type() : _base_type(0), _length(0), _sign(0), _parse_only(0) {} basic_type(unsigned int sign, unsigned int length, unsigned int base_type, unsigned int parse_only = 0) : _base_type(base_type), _length(length), _sign(sign), _parse_only(parse_only) {} // -- Simple == operator bool operator==(const basic_type & bt2) const { return ((base_type() == bt2.base_type()) && (length() == bt2.length()) && (sign() == bt2.sign())); } bool operator!=(const basic_type & bt2) const { return ! operator==(bt2); } // -- Less-than operator for sets and maps bool operator<(const basic_type & bt2) const { if (base_type() == bt2.base_type()) if (length() == bt2.length()) if (sign() == bt2.sign()) return false; else return (sign() < bt2.sign()); else return (length() < bt2.length()); else return (base_type() < bt2.base_type()); } // -- Query and modify inline bool is_no_sign() const { return _sign == NO_SIGN; } inline void set_no_sign() { _sign = NO_SIGN; } inline bool is_signed() const { return _sign == SIGNED; } inline void set_signed() { _sign = SIGNED; } inline bool is_unsigned() const { return _sign == UNSIGNED; } inline void set_unsigned() { _sign = UNSIGNED; } inline bool parse_only() const { return (_parse_only != 0); } inline void parse_only(bool po) { _parse_only = po ? 1 : 0; } inline bool is_no_type() const { return _base_type == NO_TYPE; } inline void set_no_type() { _base_type = NO_TYPE; } inline bool is_int() const { return _base_type == INT; } inline void set_int() { _base_type = INT; } inline bool is_char() const { return _base_type == CHAR; } inline void set_char() { _base_type = CHAR; } inline bool is_float() const { return _base_type == FLOAT; } inline void set_float() { _base_type = FLOAT; } inline bool is_void() const { return _base_type == VOID; } inline void set_void() { _base_type = VOID; } inline bool is_ellipsis() const { return _base_type == ELLIPSIS; } inline void set_ellipsis() { _base_type = ELLIPSIS; } inline bool is_no_length() const { return _length == NO_LENGTH; } inline void set_no_length() { _length = NO_LENGTH; } inline bool is_short() const { return _length == SHORT; } inline void set_short() { _length = SHORT; } inline bool is_long() const { return _length == LONG; } inline void set_long() { _length = LONG; } inline bool is_longlong() const { return _length == LONGLONG; } inline void set_longlong() { _length = LONGLONG; } // -- Type predicates inline bool is_integer() const { return ((_base_type == INT) || (_base_type == CHAR)); } inline bool is_arithmetic() const { return ((_base_type == INT) || (_base_type == CHAR) || (_base_type == FLOAT)); } inline bool is_scalar() const { return ((_base_type != VOID) && (_base_type != ELLIPSIS)); } // -- Return a string representation string to_string() const; string base_name() const; string length_name() const; string sign_name() const; // -- Size and alignment int size(); int alignment(); // -- Merge basic types (used in MergePrimTypes type.c) void merge_in(basic_type & other, Coord coord = Coord::Unknown); // -- Finish (used in FinishPrimType type.c) void finish(); // -- Return the basic type as a single number int to_num() const; }; #endif // CBZ_BASIC_TYPE_H

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