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922 lines
29 KiB
ObjectPascal
922 lines
29 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Florian Klaempfl
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This unit provides some help routines for type handling
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit defutil;
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{$i fpcdefs.inc}
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interface
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uses
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cclasses,
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globtype,globals,
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symconst,symbase,symtype,symdef,
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cgbase,cpubase;
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type
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tmmxtype = (mmxno,mmxu8bit,mmxs8bit,mmxu16bit,mmxs16bit,
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mmxu32bit,mmxs32bit,mmxfixed16,mmxsingle);
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{*****************************************************************************
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Basic type functions
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*****************************************************************************}
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{# Returns true, if definition defines an ordinal type }
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function is_ordinal(def : tdef) : boolean;
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{# Returns the minimal integer value of the type }
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function get_min_value(def : tdef) : TConstExprInt;
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{# Returns basetype of the specified integer range }
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function range_to_basetype(l,h:TConstExprInt):tbasetype;
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procedure range_to_type(l,h:TConstExprInt;var tt:ttype);
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procedure int_to_type(v:TConstExprInt;var tt:ttype);
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{# Returns true, if definition defines an integer type }
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function is_integer(def : tdef) : boolean;
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{# Returns true if definition is a boolean }
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function is_boolean(def : tdef) : boolean;
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{# Returns true if definition is a char
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This excludes the unicode char.
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}
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function is_char(def : tdef) : boolean;
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{# Returns true if definition is a widechar }
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function is_widechar(def : tdef) : boolean;
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{# Returns true if definition is a void}
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function is_void(def : tdef) : boolean;
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{# Returns true if definition is a smallset}
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function is_smallset(p : tdef) : boolean;
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{# Returns true, if def defines a signed data type
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(only for ordinal types)
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}
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function is_signed(def : tdef) : boolean;
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{# Returns true whether def_from's range is comprised in def_to's if both are
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orddefs, false otherwise }
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function is_in_limit(def_from,def_to : tdef) : boolean;
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function is_in_limit_value(val_from:TConstExprInt;def_from,def_to : tdef) : boolean;
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{*****************************************************************************
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Array helper functions
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*****************************************************************************}
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{# Returns true, if p points to a zero based (non special like open or
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dynamic array def).
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This is mainly used to see if the array
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is convertable to a pointer
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}
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function is_zero_based_array(p : tdef) : boolean;
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{# Returns true if p points to an open array definition }
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function is_open_array(p : tdef) : boolean;
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{# Returns true if p points to a dynamic array definition }
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function is_dynamic_array(p : tdef) : boolean;
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{# Returns true, if p points to an array of const definition }
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function is_array_constructor(p : tdef) : boolean;
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{# Returns true, if p points to a variant array }
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function is_variant_array(p : tdef) : boolean;
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{# Returns true, if p points to an array of const }
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function is_array_of_const(p : tdef) : boolean;
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{# Returns true, if p points any kind of special array
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That is if the array is an open array, a variant
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array, an array constants constructor, or an
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array of const.
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}
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function is_special_array(p : tdef) : boolean;
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{# Returns true if p is a char array def }
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function is_chararray(p : tdef) : boolean;
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{# Returns true if p is a wide char array def }
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function is_widechararray(p : tdef) : boolean;
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{# Returns true if p is a open char array def }
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function is_open_chararray(p : tdef) : boolean;
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{# Returns true if p is a open wide char array def }
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function is_open_widechararray(p : tdef) : boolean;
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{*****************************************************************************
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String helper functions
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*****************************************************************************}
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{# Returns true if p points to an open string type }
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function is_open_string(p : tdef) : boolean;
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{# Returns true if p is an ansi string type }
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function is_ansistring(p : tdef) : boolean;
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{# Returns true if p is a long string type }
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function is_longstring(p : tdef) : boolean;
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{# returns true if p is a wide string type }
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function is_widestring(p : tdef) : boolean;
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{# Returns true if p is a short string type }
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function is_shortstring(p : tdef) : boolean;
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{# Returns true if p is a pchar def }
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function is_pchar(p : tdef) : boolean;
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{# Returns true if p is a pwidechar def }
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function is_pwidechar(p : tdef) : boolean;
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{# Returns true if p is a voidpointer def }
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function is_voidpointer(p : tdef) : boolean;
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{# Returns true, if definition is a float }
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function is_fpu(def : tdef) : boolean;
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{# Returns true, if def is a currency type }
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function is_currency(def : tdef) : boolean;
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{# Returns true, if def is a single type }
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function is_single(def : tdef) : boolean;
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{# Returns true, if def is a double type }
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function is_double(def : tdef) : boolean;
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{# Returns true, if def is an extended type }
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function is_extended(def : tdef) : boolean;
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{# Returns true, if definition is a "real" real (i.e. single/double/extended) }
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function is_real(def : tdef) : boolean;
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{# Returns true, if def is a 32 bit integer type }
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function is_32bitint(def : tdef) : boolean;
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{# Returns true, if def is a 64 bit integer type }
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function is_64bitint(def : tdef) : boolean;
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{# Returns true, if def is a 64 bit type }
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function is_64bit(def : tdef) : boolean;
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{# If @var(l) isn't in the range of def a range check error (if not explicit) is generated and
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the value is placed within the range
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}
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procedure testrange(def : tdef;var l : tconstexprint;explicit:boolean);
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{# Returns the range of def, where @var(l) is the low-range and @var(h) is
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the high-range.
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}
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procedure getrange(def : tdef;var l : TConstExprInt;var h : TConstExprInt);
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{ some type helper routines for MMX support }
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function is_mmx_able_array(p : tdef) : boolean;
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{# returns the mmx type }
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function mmx_type(p : tdef) : tmmxtype;
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{# From a definition return the abstract code generator size enum. It is
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to note that the value returned can be @var(OS_NO) }
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function def_cgsize(def: tdef): tcgsize;
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implementation
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uses
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systems,verbose;
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{ returns true, if def uses FPU }
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function is_fpu(def : tdef) : boolean;
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begin
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is_fpu:=(def.deftype=floatdef);
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end;
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{ returns true, if def is a currency type }
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function is_currency(def : tdef) : boolean;
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begin
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case s64currencytype.def.deftype of
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orddef :
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result:=(def.deftype=orddef) and
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(torddef(s64currencytype.def).typ=torddef(def).typ);
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floatdef :
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result:=(def.deftype=floatdef) and
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(tfloatdef(s64currencytype.def).typ=tfloatdef(def).typ);
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else
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internalerror(200304222);
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end;
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end;
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{ returns true, if def is a single type }
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function is_single(def : tdef) : boolean;
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begin
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result:=(def.deftype=floatdef) and
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(tfloatdef(def).typ=s32real);
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end;
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{ returns true, if def is a double type }
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function is_double(def : tdef) : boolean;
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begin
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result:=(def.deftype=floatdef) and
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(tfloatdef(def).typ=s64real);
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end;
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function is_extended(def : tdef) : boolean;
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begin
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result:=(def.deftype=floatdef) and
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(tfloatdef(def).typ=s80real);
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end;
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{ returns true, if definition is a "real" real (i.e. single/double/extended) }
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function is_real(def : tdef) : boolean;
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begin
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result:=(def.deftype=floatdef) and
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(tfloatdef(def).typ in [s32real,s64real,s80real]);
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end;
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function range_to_basetype(l,h:TConstExprInt):tbasetype;
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begin
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{ prefer signed over unsigned }
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if (l>=-128) and (h<=127) then
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range_to_basetype:=s8bit
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else if (l>=0) and (h<=255) then
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range_to_basetype:=u8bit
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else if (l>=-32768) and (h<=32767) then
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range_to_basetype:=s16bit
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else if (l>=0) and (h<=65535) then
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range_to_basetype:=u16bit
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else if (l>=low(longint)) and (h<=high(longint)) then
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range_to_basetype:=s32bit
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else if (l>=low(cardinal)) and (h<=high(cardinal)) then
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range_to_basetype:=u32bit
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else
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range_to_basetype:=s64bit;
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end;
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procedure range_to_type(l,h:TConstExprInt;var tt:ttype);
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begin
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{ prefer signed over unsigned }
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if (l>=-128) and (h<=127) then
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tt:=s8inttype
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else if (l>=0) and (h<=255) then
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tt:=u8inttype
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else if (l>=-32768) and (h<=32767) then
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tt:=s16inttype
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else if (l>=0) and (h<=65535) then
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tt:=u16inttype
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else if (l>=low(longint)) and (h<=high(longint)) then
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tt:=s32inttype
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else if (l>=low(cardinal)) and (h<=high(cardinal)) then
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tt:=u32inttype
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else
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tt:=s64inttype;
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end;
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procedure int_to_type(v:TConstExprInt;var tt:ttype);
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begin
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range_to_type(v,v,tt);
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end;
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{ true if p is an ordinal }
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function is_ordinal(def : tdef) : boolean;
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var
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dt : tbasetype;
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begin
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case def.deftype of
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orddef :
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begin
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dt:=torddef(def).typ;
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is_ordinal:=dt in [uchar,uwidechar,
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u8bit,u16bit,u32bit,u64bit,
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s8bit,s16bit,s32bit,s64bit,
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bool8bit,bool16bit,bool32bit];
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end;
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enumdef :
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is_ordinal:=true;
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else
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is_ordinal:=false;
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end;
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end;
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{ returns the min. value of the type }
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function get_min_value(def : tdef) : TConstExprInt;
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begin
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case def.deftype of
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orddef:
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get_min_value:=torddef(def).low;
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enumdef:
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get_min_value:=tenumdef(def).min;
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else
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get_min_value:=0;
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end;
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end;
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{ true if p is an integer }
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function is_integer(def : tdef) : boolean;
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begin
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is_integer:=(def.deftype=orddef) and
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(torddef(def).typ in [u8bit,u16bit,u32bit,u64bit,
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s8bit,s16bit,s32bit,s64bit]);
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end;
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{ true if p is a boolean }
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function is_boolean(def : tdef) : boolean;
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begin
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is_boolean:=(def.deftype=orddef) and
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(torddef(def).typ in [bool8bit,bool16bit,bool32bit]);
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end;
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{ true if p is a void }
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function is_void(def : tdef) : boolean;
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begin
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is_void:=(def.deftype=orddef) and
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(torddef(def).typ=uvoid);
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end;
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{ true if p is a char }
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function is_char(def : tdef) : boolean;
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begin
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is_char:=(def.deftype=orddef) and
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(torddef(def).typ=uchar);
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end;
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{ true if p is a wchar }
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function is_widechar(def : tdef) : boolean;
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begin
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is_widechar:=(def.deftype=orddef) and
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(torddef(def).typ=uwidechar);
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end;
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{ true if p is signed (integer) }
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function is_signed(def : tdef) : boolean;
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var
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dt : tbasetype;
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begin
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case def.deftype of
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orddef :
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begin
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dt:=torddef(def).typ;
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is_signed:=(dt in [s8bit,s16bit,s32bit,s64bit,scurrency]);
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end;
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enumdef :
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is_signed:=tenumdef(def).min < 0;
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arraydef :
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is_signed:=is_signed(tarraydef(def).rangetype.def);
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else
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is_signed:=false;
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end;
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end;
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function is_in_limit(def_from,def_to : tdef) : boolean;
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var
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fromqword, toqword: boolean;
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begin
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if (def_from.deftype <> orddef) or
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(def_to.deftype <> orddef) then
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begin
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is_in_limit := false;
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exit;
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end;
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fromqword := torddef(def_from).typ = u64bit;
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toqword := torddef(def_to).typ = u64bit;
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is_in_limit:=(toqword and is_signed(def_from)) or
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((not fromqword) and
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(torddef(def_from).low>=torddef(def_to).low) and
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(torddef(def_from).high<=torddef(def_to).high));
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end;
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function is_in_limit_value(val_from:TConstExprInt;def_from,def_to : tdef) : boolean;
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begin
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if (def_from.deftype <> orddef) and
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(def_to.deftype <> orddef) then
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internalerror(200210062);
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if (torddef(def_to).typ = u64bit) then
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begin
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is_in_limit_value:=((TConstExprUInt(val_from)>=TConstExprUInt(torddef(def_to).low)) and
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(TConstExprUInt(val_from)<=TConstExprUInt(torddef(def_to).high)));
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end
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else
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begin;
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is_in_limit_value:=((val_from>=torddef(def_to).low) and
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(val_from<=torddef(def_to).high));
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end;
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end;
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{ true, if p points to an open array def }
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function is_open_string(p : tdef) : boolean;
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begin
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is_open_string:=(p.deftype=stringdef) and
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(tstringdef(p).string_typ=st_shortstring) and
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(tstringdef(p).len=0);
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end;
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{ true, if p points to a zero based array def }
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function is_zero_based_array(p : tdef) : boolean;
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begin
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is_zero_based_array:=(p.deftype=arraydef) and
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(tarraydef(p).lowrange=0) and
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not(is_special_array(p));
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end;
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{ true if p points to a dynamic array def }
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function is_dynamic_array(p : tdef) : boolean;
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begin
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is_dynamic_array:=(p.deftype=arraydef) and
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tarraydef(p).IsDynamicArray;
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end;
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{ true, if p points to an open array def }
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function is_open_array(p : tdef) : boolean;
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begin
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{ check for s32inttype is needed, because for u32bit the high
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range is also -1 ! (PFV) }
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is_open_array:=(p.deftype=arraydef) and
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(tarraydef(p).rangetype.def=s32inttype.def) and
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(tarraydef(p).lowrange=0) and
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(tarraydef(p).highrange=-1) and
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not(tarraydef(p).IsConstructor) and
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not(tarraydef(p).IsVariant) and
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not(tarraydef(p).IsArrayOfConst) and
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not(tarraydef(p).IsDynamicArray);
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end;
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{ true, if p points to an array of const def }
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function is_array_constructor(p : tdef) : boolean;
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begin
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is_array_constructor:=(p.deftype=arraydef) and
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(tarraydef(p).IsConstructor);
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end;
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{ true, if p points to a variant array }
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function is_variant_array(p : tdef) : boolean;
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begin
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is_variant_array:=(p.deftype=arraydef) and
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(tarraydef(p).IsVariant);
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end;
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{ true, if p points to an array of const }
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function is_array_of_const(p : tdef) : boolean;
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begin
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is_array_of_const:=(p.deftype=arraydef) and
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(tarraydef(p).IsArrayOfConst);
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end;
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{ true, if p points to a special array }
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function is_special_array(p : tdef) : boolean;
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begin
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is_special_array:=(p.deftype=arraydef) and
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((tarraydef(p).IsVariant) or
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(tarraydef(p).IsArrayOfConst) or
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(tarraydef(p).IsConstructor) or
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(tarraydef(p).IsDynamicArray) or
|
|
is_open_array(p)
|
|
);
|
|
end;
|
|
|
|
{$ifdef ansistring_bits}
|
|
{ true if p is an ansi string def }
|
|
function is_ansistring(p : tdef) : boolean;
|
|
begin
|
|
is_ansistring:=(p.deftype=stringdef) and
|
|
(tstringdef(p).string_typ in [st_ansistring16,st_ansistring32,st_ansistring64]);
|
|
end;
|
|
{$else}
|
|
{ true if p is an ansi string def }
|
|
function is_ansistring(p : tdef) : boolean;
|
|
begin
|
|
is_ansistring:=(p.deftype=stringdef) and
|
|
(tstringdef(p).string_typ=st_ansistring);
|
|
end;
|
|
{$endif}
|
|
|
|
{ true if p is an long string def }
|
|
function is_longstring(p : tdef) : boolean;
|
|
begin
|
|
is_longstring:=(p.deftype=stringdef) and
|
|
(tstringdef(p).string_typ=st_longstring);
|
|
end;
|
|
|
|
|
|
{ true if p is an wide string def }
|
|
function is_widestring(p : tdef) : boolean;
|
|
begin
|
|
is_widestring:=(p.deftype=stringdef) and
|
|
(tstringdef(p).string_typ=st_widestring);
|
|
end;
|
|
|
|
|
|
{ true if p is an short string def }
|
|
function is_shortstring(p : tdef) : boolean;
|
|
begin
|
|
is_shortstring:=(p.deftype=stringdef) and
|
|
(tstringdef(p).string_typ=st_shortstring);
|
|
end;
|
|
|
|
{ true if p is a char array def }
|
|
function is_chararray(p : tdef) : boolean;
|
|
begin
|
|
is_chararray:=(p.deftype=arraydef) and
|
|
is_char(tarraydef(p).elementtype.def) and
|
|
not(is_special_array(p));
|
|
end;
|
|
|
|
{ true if p is a widechar array def }
|
|
function is_widechararray(p : tdef) : boolean;
|
|
begin
|
|
is_widechararray:=(p.deftype=arraydef) and
|
|
is_widechar(tarraydef(p).elementtype.def) and
|
|
not(is_special_array(p));
|
|
end;
|
|
|
|
|
|
{ true if p is a open char array def }
|
|
function is_open_chararray(p : tdef) : boolean;
|
|
begin
|
|
is_open_chararray:= is_open_array(p) and
|
|
is_char(tarraydef(p).elementtype.def);
|
|
end;
|
|
|
|
{ true if p is a open wide char array def }
|
|
function is_open_widechararray(p : tdef) : boolean;
|
|
begin
|
|
is_open_widechararray:= is_open_array(p) and
|
|
is_widechar(tarraydef(p).elementtype.def);
|
|
end;
|
|
|
|
{ true if p is a pchar def }
|
|
function is_pchar(p : tdef) : boolean;
|
|
begin
|
|
is_pchar:=(p.deftype=pointerdef) and
|
|
(is_char(tpointerdef(p).pointertype.def) or
|
|
(is_zero_based_array(tpointerdef(p).pointertype.def) and
|
|
is_chararray(tpointerdef(p).pointertype.def)));
|
|
end;
|
|
|
|
{ true if p is a pchar def }
|
|
function is_pwidechar(p : tdef) : boolean;
|
|
begin
|
|
is_pwidechar:=(p.deftype=pointerdef) and
|
|
(is_widechar(tpointerdef(p).pointertype.def) or
|
|
(is_zero_based_array(tpointerdef(p).pointertype.def) and
|
|
is_widechararray(tpointerdef(p).pointertype.def)));
|
|
end;
|
|
|
|
|
|
{ true if p is a voidpointer def }
|
|
function is_voidpointer(p : tdef) : boolean;
|
|
begin
|
|
is_voidpointer:=(p.deftype=pointerdef) and
|
|
(tpointerdef(p).pointertype.def.deftype=orddef) and
|
|
(torddef(tpointerdef(p).pointertype.def).typ=uvoid);
|
|
end;
|
|
|
|
|
|
{ true if p is a smallset def }
|
|
function is_smallset(p : tdef) : boolean;
|
|
begin
|
|
is_smallset:=(p.deftype=setdef) and
|
|
(tsetdef(p).settype=smallset);
|
|
end;
|
|
|
|
|
|
{ true, if def is a 32 bit int type }
|
|
function is_32bitint(def : tdef) : boolean;
|
|
begin
|
|
result:=(def.deftype=orddef) and (torddef(def).typ in [u32bit,s32bit])
|
|
end;
|
|
|
|
|
|
{ true, if def is a 64 bit int type }
|
|
function is_64bitint(def : tdef) : boolean;
|
|
begin
|
|
is_64bitint:=(def.deftype=orddef) and (torddef(def).typ in [u64bit,s64bit])
|
|
end;
|
|
|
|
|
|
{ true, if def is a 64 bit type }
|
|
function is_64bit(def : tdef) : boolean;
|
|
begin
|
|
is_64bit:=(def.deftype=orddef) and (torddef(def).typ in [u64bit,s64bit,scurrency])
|
|
end;
|
|
|
|
|
|
{ if l isn't in the range of def a range check error (if not explicit) is generated and
|
|
the value is placed within the range }
|
|
procedure testrange(def : tdef;var l : tconstexprint;explicit:boolean);
|
|
var
|
|
lv,hv: TConstExprInt;
|
|
error: boolean;
|
|
begin
|
|
error := false;
|
|
{ for 64 bit types we need only to check if it is less than }
|
|
{ zero, if def is a qword node }
|
|
if is_64bitint(def) then
|
|
begin
|
|
if (l<0) and (torddef(def).typ=u64bit) then
|
|
begin
|
|
{ don't zero the result, because it may come from hex notation
|
|
like $ffffffffffffffff! (JM)
|
|
l:=0; }
|
|
if not explicit then
|
|
begin
|
|
if (cs_check_range in aktlocalswitches) then
|
|
Message(parser_e_range_check_error)
|
|
else
|
|
Message(parser_w_range_check_error);
|
|
end;
|
|
error := true;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
getrange(def,lv,hv);
|
|
if (l<lv) or (l>hv) then
|
|
begin
|
|
if not explicit then
|
|
begin
|
|
if ((def.deftype=enumdef) and
|
|
{ delphi allows range check errors in
|
|
enumeration type casts FK }
|
|
not(m_delphi in aktmodeswitches)) or
|
|
(cs_check_range in aktlocalswitches) then
|
|
Message(parser_e_range_check_error)
|
|
else
|
|
Message(parser_w_range_check_error);
|
|
end;
|
|
error := true;
|
|
end;
|
|
end;
|
|
if error then
|
|
begin
|
|
{ Fix the value to fit in the allocated space for this type of variable }
|
|
case longint(def.size) of
|
|
1: l := l and $ff;
|
|
2: l := l and $ffff;
|
|
{ work around sign extension bug (to be fixed) (JM) }
|
|
4: l := l and (int64($fffffff) shl 4 + $f);
|
|
end;
|
|
{ do sign extension if necessary (JM) }
|
|
if is_signed(def) then
|
|
begin
|
|
case longint(def.size) of
|
|
1: l := shortint(l);
|
|
2: l := smallint(l);
|
|
4: l := longint(l);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
{ return the range from def in l and h }
|
|
procedure getrange(def : tdef;var l : TConstExprInt;var h : TConstExprInt);
|
|
begin
|
|
case def.deftype of
|
|
orddef :
|
|
begin
|
|
l:=torddef(def).low;
|
|
h:=torddef(def).high;
|
|
end;
|
|
enumdef :
|
|
begin
|
|
l:=tenumdef(def).min;
|
|
h:=tenumdef(def).max;
|
|
end;
|
|
arraydef :
|
|
begin
|
|
l:=tarraydef(def).lowrange;
|
|
h:=tarraydef(def).highrange;
|
|
end;
|
|
else
|
|
internalerror(987);
|
|
end;
|
|
end;
|
|
|
|
|
|
function mmx_type(p : tdef) : tmmxtype;
|
|
begin
|
|
mmx_type:=mmxno;
|
|
if is_mmx_able_array(p) then
|
|
begin
|
|
if tarraydef(p).elementtype.def.deftype=floatdef then
|
|
case tfloatdef(tarraydef(p).elementtype.def).typ of
|
|
s32real:
|
|
mmx_type:=mmxsingle;
|
|
end
|
|
else
|
|
case torddef(tarraydef(p).elementtype.def).typ of
|
|
u8bit:
|
|
mmx_type:=mmxu8bit;
|
|
s8bit:
|
|
mmx_type:=mmxs8bit;
|
|
u16bit:
|
|
mmx_type:=mmxu16bit;
|
|
s16bit:
|
|
mmx_type:=mmxs16bit;
|
|
u32bit:
|
|
mmx_type:=mmxu32bit;
|
|
s32bit:
|
|
mmx_type:=mmxs32bit;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
function is_mmx_able_array(p : tdef) : boolean;
|
|
begin
|
|
{$ifdef SUPPORT_MMX}
|
|
if (cs_mmx_saturation in aktlocalswitches) then
|
|
begin
|
|
is_mmx_able_array:=(p.deftype=arraydef) and
|
|
not(is_special_array(p)) and
|
|
(
|
|
(
|
|
(tarraydef(p).elementtype.def.deftype=orddef) and
|
|
(
|
|
(
|
|
(tarraydef(p).lowrange=0) and
|
|
(tarraydef(p).highrange=1) and
|
|
(torddef(tarraydef(p).elementtype.def).typ in [u32bit,s32bit])
|
|
)
|
|
or
|
|
(
|
|
(tarraydef(p).lowrange=0) and
|
|
(tarraydef(p).highrange=3) and
|
|
(torddef(tarraydef(p).elementtype.def).typ in [u16bit,s16bit])
|
|
)
|
|
)
|
|
)
|
|
or
|
|
(
|
|
(
|
|
(tarraydef(p).elementtype.def.deftype=floatdef) and
|
|
(
|
|
(tarraydef(p).lowrange=0) and
|
|
(tarraydef(p).highrange=1) and
|
|
(tfloatdef(tarraydef(p).elementtype.def).typ=s32real)
|
|
)
|
|
)
|
|
)
|
|
);
|
|
end
|
|
else
|
|
begin
|
|
is_mmx_able_array:=(p.deftype=arraydef) and
|
|
(
|
|
(
|
|
(tarraydef(p).elementtype.def.deftype=orddef) and
|
|
(
|
|
(
|
|
(tarraydef(p).lowrange=0) and
|
|
(tarraydef(p).highrange=1) and
|
|
(torddef(tarraydef(p).elementtype.def).typ in [u32bit,s32bit])
|
|
)
|
|
or
|
|
(
|
|
(tarraydef(p).lowrange=0) and
|
|
(tarraydef(p).highrange=3) and
|
|
(torddef(tarraydef(p).elementtype.def).typ in [u16bit,s16bit])
|
|
)
|
|
or
|
|
(
|
|
(tarraydef(p).lowrange=0) and
|
|
(tarraydef(p).highrange=7) and
|
|
(torddef(tarraydef(p).elementtype.def).typ in [u8bit,s8bit])
|
|
)
|
|
)
|
|
)
|
|
or
|
|
(
|
|
(tarraydef(p).elementtype.def.deftype=floatdef) and
|
|
(
|
|
(tarraydef(p).lowrange=0) and
|
|
(tarraydef(p).highrange=1) and
|
|
(tfloatdef(tarraydef(p).elementtype.def).typ=s32real)
|
|
)
|
|
)
|
|
);
|
|
end;
|
|
{$else SUPPORT_MMX}
|
|
is_mmx_able_array:=false;
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
|
|
|
|
function def_cgsize(def: tdef): tcgsize;
|
|
begin
|
|
case def.deftype of
|
|
orddef,
|
|
enumdef,
|
|
setdef:
|
|
begin
|
|
result:=int_cgsize(def.size);
|
|
if is_signed(def) then
|
|
result:=tcgsize(ord(result)+(ord(OS_S8)-ord(OS_8)));
|
|
end;
|
|
classrefdef,
|
|
pointerdef:
|
|
result := OS_ADDR;
|
|
procvardef:
|
|
begin
|
|
if tprocvardef(def).is_methodpointer and
|
|
(not tprocvardef(def).is_addressonly) then
|
|
result := OS_64
|
|
else
|
|
result := OS_ADDR;
|
|
end;
|
|
stringdef :
|
|
begin
|
|
if is_ansistring(def) or is_widestring(def) then
|
|
result := OS_ADDR
|
|
else
|
|
result:=int_cgsize(def.size);
|
|
end;
|
|
objectdef :
|
|
begin
|
|
if is_class_or_interface(def) then
|
|
result := OS_ADDR
|
|
else
|
|
result:=int_cgsize(def.size);
|
|
end;
|
|
floatdef:
|
|
if cs_fp_emulation in aktmoduleswitches then
|
|
result:=int_cgsize(def.size)
|
|
else
|
|
result:=tfloat2tcgsize[tfloatdef(def).typ];
|
|
recorddef :
|
|
result:=int_cgsize(def.size);
|
|
arraydef :
|
|
begin
|
|
if not is_special_array(def) then
|
|
result := int_cgsize(def.size)
|
|
else
|
|
begin
|
|
if is_dynamic_array(def) then
|
|
result := OS_ADDR
|
|
else
|
|
result := OS_NO;
|
|
end;
|
|
end;
|
|
else
|
|
begin
|
|
{ undefined size }
|
|
result:=OS_NO;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
end.
|