* harbour/source/vm/classes.c
* changed __cls_IncData() to return index to newly allocated instance
item and __cls_DecData() to return number of local (not inherited)
instance items
* harbour/include/hbcomp.h
* harbour/include/hbcompdf.h
* harbour/include/hbexpra.c
* harbour/include/hbexprb.c
* harbour/include/hbexprop.h
* harbour/source/common/expropt1.c
* harbour/source/compiler/genc.c
* harbour/source/compiler/harbour.y
* harbour/source/compiler/hbmain.c
* harbour/source/compiler/hbopt.c
! reverted fix for unnecessary -W2 warning:
Function '...' does not end with RETURN statement
in code like:
func f(v)
if v
return "TRUE"
else
return "FALSE"
endif
Sorry but I had to make it because this fix was wrong and causes
that code like:
func f(v)
if v
? v
else
return "FALSE"
endif
was compiled without any warnings but wrong PCODE was generated.
In some spare time I'll try to implement valid RETURN detection,
now simply add RETURN NIL at the end of such functions - it will
be removed by dead code eliminator.
! fixed memory leak when more then one .prg file was given as compiler
parameter
+ cleaned some code for future modifications
* harbour/source/macro/macro.y
+ added small hack for two BCC/OW warnings
* harbour/source/compiler/harbour.yyc
* harbour/source/compiler/harbour.yyh
* harbour/source/macro/macro.yyc
* harbour/source/macro/macro.yyh
* regenerated with modified Bison version which should give code
without BCC warnings - I cannot promise I'll keep it in the
future but I will try.
* harbour/source/rdd/dbcmd.c
! use default RDD instead of current one in COPY TO and APPEND FROM
* harbour/source/vm/classes.c
* added support for (@func()):eval(...)
* harbour/include/hbapi.h
* harbour/source/vm/dynsym.c
* changed some declarations from 'char *' to 'const char *'
* harbour/include/hbapicls.h
* harbour/source/vm/classes.c
* changed some declarations from 'char *' to 'const char *'
+ added hb_clsFuncName(), hb_clsFindClass(), hb_objSetClass()
* harbour/source/rtl/itemseri.c
! fixed some stupid typos in previous commit
* added support for serialization of object variables - I'm
not sure it's good idea anyhow people ask about it so we
have it. Probably we should add some special method like
OnError(), f.e.: OnRestore() or sth like that and execute
it after deserialization or object cloning.
* harbour/source/compiler/harbour.y
* harbour/source/compiler/harbour.yyc
! fixed some possible false warning messages
* harbour/include/hboo.ch
* harbour/source/vm/classes.c
+ added support for HB_OO_MSG_PROPERTY and HB_OO_MSG_CLASSPROPERTY
to make some xHarbour users happy ;-)
* harbour/common.mak
* harbour/harbour.spec
* harbour/include/hbcompdf.h
* harbour/source/compiler/Makefile
+ harbour/source/compiler/hbcmplib.c
+ added HB_COMPILE() function - it accepts exactly the same parameters
as harbour compiler and makes the same job :-)
* harbour/utils/hbrun/Makefile
* harbour/utils/hbrun/hbrun.prg
+ added support for compilation and direct execution of .prg files
Now hbrun can accept as first parameter .hrb or .prg file and if
it's .prg file it's compiled and then executed just like .hrb one.
In *nixes if you copy compiled hbrun to /usr/bin directory then
you can add to your .prg files as first line:
#!/usr/bin/hbrun
and then after setting executable attribute you can directly
execute them, f.e.:
./test.prg
If you are using Linux then you can also chose default gt driver
by dding to above line: //gt<name>
F.e.
#!/usr/bin/hbrun //gtstd
* harbour/common.mak
* updated for new files - please check
* harbour/harbour.spec
* added compiler library
* harbour/bin/pack_src.sh
* harbour/bin/hb-func.sh
* updated for new files and libraries
* harbour/config/w32/mingw32.cf
* harbour/config/w32/watcom.cf
* harbour/config/w32/xcc.cf
* added winsock libraries
* harbour/include/hbapicdp.h
* harbour/source/rtl/cdpapi.c
+ added hb_cdpicmp() - not case sensitive version of hb_cdpcmp()
* harbour/include/hbapiitm.h
* harbour/source/vm/itemapi.c
+ hb_itemStrICmp(), hb_itemCopyFromRef(), hb_itemMoveFromRef()
* harbour/include/hbapi.h
* harbour/include/hbcomp.h
* harbour/include/hbcompdf.h
* harbour/include/hbexpra.c
* harbour/include/hbexprb.c
* harbour/include/hbexprop.h
* harbour/include/hbmacro.h
* harbour/include/hbpcode.h
* harbour/include/hbvmpub.h
* harbour/include/hbxvm.h
* harbour/source/common/expropt1.c
* harbour/source/compiler/complex.c
* harbour/source/compiler/genc.c
* harbour/source/compiler/gencc.c
* harbour/source/compiler/gencli.c
* harbour/source/compiler/genhrb.c
* harbour/source/compiler/genobj32.c
* harbour/source/compiler/harbour.y
* harbour/source/compiler/harbour.yyc
* harbour/source/compiler/harbour.yyh
* harbour/source/compiler/hbdead.c
* harbour/source/compiler/hbfix.c
* harbour/source/compiler/hblbl.c
* harbour/source/compiler/hbmain.c
* harbour/source/compiler/hbopt.c
* harbour/source/compiler/hbpcode.c
* harbour/source/compiler/hbstripl.c
* harbour/source/macro/macro.y
* harbour/source/macro/macro.yyc
* harbour/source/macro/macro.yyh
* harbour/source/macro/macrolex.c
* harbour/source/vm/Makefile
* harbour/source/vm/arrays.c
* harbour/source/vm/asort.c
* harbour/source/vm/classes.c
* harbour/source/vm/eval.c
* harbour/source/vm/garbage.c
* harbour/source/vm/hvm.c
* harbour/source/vm/itemapi.c
* harbour/source/vm/macro.c
+ harbour/source/vm/hashes.c
+ harbour/source/vm/hashfunc.c
+ added hash items, f.e.:
local h1 := {=>}, h2 := { "a"=>1.234, "b"=>2.345 }
? h2[ "a" ], h2[ "b ]
+ added support for DYNAMIC function declaration - it allow to define
functions which are lately bound at runtime, f.e.:
/*** t01.prg ***/
dynamic func1
proc main()
local h:=__hrbload("t02.hrb")
? func1()
return
/*** t02.prg ***/
func func1
return "Hello!!!"
% use new FUNCALL structure to hold EXTERNAL and DYNAMIC functions,
it reduce memory usage, FUNCALL is much smaller then FUNCTION
% use symbol scope bits when possible instead of making some linear scan
+ added new enumarator message: __ENUMKEY - it allow to access
key value when hash item is base enumerator value, f.e.:
proc main()
local v, h:={"a"=>1.000,"b"=>2.000,"c"=>3.000}
heval( h, { |k,v,i| qout( k, v, i ) } ); ?
for each v in h
? v, "=>", v:__enumKey(), v:__enumValue(), v:__enumIndex(), ;
valtype(v:__enumBase())
v += 0.123
next
? ;heval( h, { |k,v,i| qout( k, v, i ) } )
return
+ added C level hb_hash*() functions
+ added support for full HASH item cloning and updated array cloning
to also clone nested hashes - please note that xHarbour does not do
that, in xHarbour ACLONE() clones _ONLY_ nested arrays and HCLONE()
_DOES_NOT_ clone _ANY_ nested items.
* harbour/include/hbextern.ch
+ added hash functions HB_H*()
* changed INET*() functions to HB_INET*()
+ added hash functions H*() and socket functions INET*() when
HB_COMPAT_XHB is set
* harbour/include/hbtypes.h
+ added missing HB_EXTERN_BEGIN / HB_EXTERN_END
* harbour/include/hbpp.h
* harbour/source/pp/ppcore.c
! added protection against automatic word concatenation in some cases
! fixed preprocessing expressions when match marker matches ';' token
* harbour/source/rtl/Makefile
+ harbour/source/rtl/itemseri.c
+ added functions for item serialization: HB_SERIALIZE() and
HB_DESERIALIZE() - these function are not binary compatible
with xHarbour functions with the same names but make very
similar job with the exception to serialization of codeblock
and object variables - Harbour does not allow to serialize
codeblocks and serialize objects as arrays.
In most cases these functions can replace the xHarbour ones
+ added HB_DESERIALBEGIN() and HB_DESERIALIZE() functions covered
by HB_COMPAT_XHB macro - this functions are only for compatibility
with existing xHarbour code, In Harbour HB_DESERIALBEGIN() is
dummy function which returns first parameter and HB_DESERIALNEXT()
is a simple wrapper to HB_DESERIALIZE() so it's not necessary to
use them.
* harbour/source/rtl/hbinet.c
* changed INET*() functions to HB_INET*() and enable them for default
build
+ added INET*() functions wrappers covered by HB_COMPAT_XHB macro
* harbour/source/rtl/hbrandom.c
+ added HB_RANDOMINT() - xHarbour compatible
* harbour/source/rtl/len.c
+ added support for HASHes
* harbour/source/rtl/valtype.c
+ added support for HASHes
+ added set of HB_IS*() functions - they are a little bit faster then
calling VALTYPE( v ) == <cVal>
- removed HB_ISBYREF() - this function cannot longer work, it was using
a Clipper incompatible anomalies in passing variables by reference I
fixed so it has to stop to work. If it will be realy necessary to
implement HB_ISBYREF() function then please inform me - it will have
to be done at compiler level or with some much deeper HVM stack
checking.
* harbour/source/vm/extend.c
! fixed hb_extIsArray() and hb_extIsObject() to work well with
parameters passed by reference.
Please note that now hb_extIsArray() return TRUE only for pure arrays
not object values.
* harbour/contrib/Makefile
+ harbour/contrib/tip/Changelog
+ harbour/contrib/tip/Makefile
+ harbour/contrib/tip/atokens.c
+ harbour/contrib/tip/base64x.c
+ harbour/contrib/tip/cgi.prg
+ harbour/contrib/tip/client.prg
+ harbour/contrib/tip/credent.prg
+ harbour/contrib/tip/cstr.prg
+ harbour/contrib/tip/encb64.prg
+ harbour/contrib/tip/encmthd.c
+ harbour/contrib/tip/encoder.prg
+ harbour/contrib/tip/encqp.prg
+ harbour/contrib/tip/encurl.prg
+ harbour/contrib/tip/ftpcln.prg
+ harbour/contrib/tip/hbhex2n.c
+ harbour/contrib/tip/httpcln.prg
+ harbour/contrib/tip/mail.prg
+ harbour/contrib/tip/popcln.prg
+ harbour/contrib/tip/smtpcln.prg
+ harbour/contrib/tip/tip.ch
+ harbour/contrib/tip/url.prg
+ harbour/contrib/tip/utils.c
+ added TIP library - code borrowed from xHarbour
Please test - a lot of above code is not well tested, also some peaces
were written over year ago for different things (f.e. serialization for
NETRDD) and now I collected them and committed.
The TIP library was not tested at all. It can be compiled but I cannot
say if it works - I hope that people familiar with it can make necessary
test and fixes.
It's also not the final version of low level HASH item code. I'm working
on more efficient structure which uses binary tries but I cannot say when
I'll finish it (maybe in this weekend or maybe in next year) so I committed
working version now even if I'm not happy with overall performance (BTW
not worser then in xHarbour)
* harbour/include/hbgtinfo.ch
* harbour/contrib/libct/ctwin.c
* harbour/source/rtl/gtalleg/gtalleg.c
* harbour/source/rtl/gtcrs/gtcrs.c
* harbour/source/rtl/gtdos/gtdos.c
* harbour/source/rtl/gtos2/gtos2.c
* harbour/source/rtl/gtpca/gtpca.c
* harbour/source/rtl/gtsln/gtsln.c
* harbour/source/rtl/gtstd/gtstd.c
* harbour/source/rtl/gtwin/gtwin.c
* harbour/source/rtl/gtwvt/gtwvt.c
* harbour/source/rtl/gtxwc/gtxwc.c
+ added support for GTI_FULLSCREEN, GTI_KBDSUPPORT, GTI_ISCTWIN
* harbour/source/rtl/hbgtcore.c
! fixed line and box drawing when the coordinates are out of screen size
* harbour/include/hbapi.h
* harbour/include/hbcomp.h
* harbour/include/hbpcode.h
* harbour/include/hbstack.h
* harbour/include/hbvm.h
* harbour/include/hbxvm.h
* harbour/source/compiler/complex.c
* harbour/source/compiler/genc.c
* harbour/source/compiler/gencc.c
* harbour/source/compiler/harbour.c
* harbour/source/compiler/harbour.y
* harbour/source/compiler/harbour.yyc
* harbour/source/compiler/harbour.yyh
* harbour/source/compiler/hbdead.c
* harbour/source/compiler/hbfix.c
* harbour/source/compiler/hblbl.c
* harbour/source/compiler/hbpcode.c
* harbour/source/compiler/hbstripl.c
* harbour/source/vm/classes.c
* harbour/source/vm/estack.c
* harbour/source/vm/hvm.c
* harbour/source/vm/itemapi.c
! added protection against cyclic references in arrays
* eliminated action parameter from hb_vmRequestReenter() /
hb_vmRequestRestore()
* moved s_lRecoverBase and s_uiActionRequest to HB_STACK structure
for future MT HVM version
+ added internal item structure hb_struRecover - it's not real item
but this structure is used to keep information about BEGIN SEQUENCE
data - it reduce HB_STACK usage
+ added support for ALWAYS clause in BEGIN SEQUENCE
The syntax is:
BEGIN SEQUENCE
<code>
[ RECOVER [ USING oErr ] ]
<recoverCode>
[ ALWAYS ]
<alwaysCode>
END [ SEQUENCE ]
It's guaranteed that <alwaysCode> is _ALWAYS_ executed even if
inside <code> or <recoverCode> some new exceptions like RETURN,
BREAK or QUIT will appear.
Please note that when the following code is executed:
BEGIN SEQUENCE
<code>
ALWAYS
<alwaysCode>
END
(without RECOVER clause) then BREAK exception inside <code> is not
recovered, <alwaysCode> is executed and then BREAK exception is
passed to outer BEGIN SEQUENCE. This is the same semantic as
used in TRY / [ CATCH ] / FINALLY / END
Those of you who prefer to use TRY / CATCH / FINALLY / END instead
of BEGIN SEQUENCE / RECOVER / ALWAYS / END can simply add to your
source code:
#command TRY => BEGIN SEQUENCE
#command CATCH [ oErr ] => RECOVER [ USING <oErr> ]
and:
errorBlock( {|oErr| break( oErr ) } )
Though instead of 'break( oErr )' I suggest to use some small function
which will support some basic recovery/substitute operations like in
default errorsys() and LockErrHandler() to not break existing code
which may depends on the default behavior.
If you want I can add direct support for TRY / CATCH / FINALLY / END
but I'm not sure it's really necessary.
Please note also that in Harbour ALWAYS code is execute even for QUIT
excpetion.
When <alwaysCode> is executed current exception is stored and restored
when is finished. If new exception appears inside <alwaysCode> then
restored exception depends on the priority in the following order:
QUIT // highest priority
BREAK
RETURN
If both exceptions have the same priority and contain additional value
(error object in BREAK or return value in RETURN) then the recently set
one is restored. It's similar behavior to destructor code.
* harbour/source/common/hbstr.c
* moved one character length string table (hb_szAscii) from hvm.c
to use it also in compiler and preprocessor
* harbour/source/compiler/ppcomp.c
* harbour/source/pp/ppcore.c
* harbour/source/pp/pplib.c
* tuned error messages to be more Clipper compatible
% use static strings from hb_szAscii
* harbour/source/rtl/alert.prg
* use hb_gtInfo( GTI_FULLSCREEN ) to detect type of GT driver
! some minor fixes
TOFIX: we have to also use GTI_ISCTWIN or add window allocation
to standard GT drivers to be Clipper compatible when CTWIN
is used - In Clipper Tools ALERT() works in differ way then
the standard one. It creates separate window box to display
data, supports SETKEY(), etc. I'll think about adding some
extended support for ALERT() and similar operations (f.e.
separate debugger windows) to GT API so it will be also
possible to overload standard alert() command by GUI message
box in GTGUI and similar GT drivers.
* harbour/source/rtl/binnumx.c
! fixed U2BIN() - wrong casting
* harbour/contrib/rdd_ads/adsfunc.c
* harbour/source/rdd/workarea.c
* formatting
* harbour/include/hbapi.h
* harbour/source/vm/extend.c
+ added missing hb_storptrGC()
* harbour/include/hbapicdp.h
* harbour/source/rtl/cdpapi.c
+ added parameter to unicode translation function to protect control
code translation
* formatting
* harbour/source/rtl/gtsln/kbsln.c
* harbour/source/rtl/gtxwc/gtxwc.c
* use new unicode translation function format. It also fixes problem
with space translation in GTLSN used in UTF8 mode
* harbour/include/hbapiitm.h
* harbour/source/vm/itemapi.c
+ added hb_itemCopyToRef(), hb_itemMoveToRef(), hb_itemMoveRef(),
hb_itemUnRefWrite()
* harbour/include/hbexprb.c
! use HB_P_DUPLUNREF instead of HB_P_DUPLICATE when assign is used in
push context - Clipper compatible behavior, see:
x:=10
f(y:=iif(.t.,@x,))
? x, y
func f(x)
x+=100
return nil
* harbour/include/hbver.h
* harbour/source/common/hbver.c
* changed status to "devel"
* harbour/source/common/expropt2.c
* disabled setting NIL when iif(.t.,,sth()) is optimized to avoid
warning when iif() is used as statement - to fix number of parameters
passed to function in code like f(iif(.t.,,sth())) we will need a
little bit deeper modification
* harbour/source/compiler/complex.c
* added hack for potential problems caused by WITH OBJECT syntax, f.e.
in code like:
proc p(obj,x)
case:=myCaseClass():new()
retu:=myCaseClass():new()
WITH OBJECT obj
do case
case x==nil
case:value()
case:action()
retu:sth()
end
END
case:action()
retu:sth()
return
case:action(), case:value(), retu:sth() can means two different things
and compiler cannot guess which one should use. It cannot be fixed
because it's caused by bad WITH OBJECT syntax. In xHarbour constractions
like case:value() or retu:sth() are always used as in WITH OBJECT
context what is not Clipper compatible. I do not want to introduce
such limitations. We have two choices: change WITH OBJECT syntax or
add some hack to "hide" the problem a little bit. Now I intorduce
ugly hack which check number of spaces between ':' so
case :action()
is compiled as case condition using WITH OBJECT message and
case:action() as sending message to object in case variable
* harbour/source/compiler/harbour.y
* harbour/source/compiler/harbour.yyc
+ added support for passing base value to FOR EACH by reference.
* harbour/source/vm/arrays.c
* use hb_itemMoveRef() in AINS()/ADEL() to avoid creation of cyclic
reference chains
* harbour/source/vm/debug.c
* harbour/source/vm/memvars.c
* use hb_itemCopyToRef() to avoid creation of cyclic reference chains
* harbour/source/vm/classes.c
* harbour/source/vm/hvm.c
* use hb_itemMoveToRef() to avoid creation of cyclic reference chains
+ added support for for writable string enumerators, f.e.:
proc main()
local s, c
s:="abcdefghijklmnopqrst"
for each c in @s
if c$"aeio"
c:="*"
endif
next
? s // "*bcd*fgh*jklmn*pqrst"
return
* harbour/bin/hb-func.sh
* harbour/bin/hb-mkslib.sh
* harbour/bin/postinst.sh
* harbour/config/bsd/gcc.cf
* harbour/config/darwin/gcc.cf
* harbour/config/dos/owatcom.cf
* harbour/config/hpux/gcc.cf
* harbour/config/linux/gcc.cf
* harbour/config/linux/owatcom.cf
* harbour/config/os2/gcc.cf
* harbour/config/sunos/gcc.cf
* harbour/config/w32/watcom.cf
* harbour/contrib/rdd_ads/ads1.c
* harbour/contrib/rdd_ads/adsfunc.c
* harbour/include/hbapifs.h
* harbour/include/hbexprc.c
* harbour/include/hbsetup.h
* harbour/source/common/expropt2.c
* harbour/source/common/hbdate.c
* harbour/source/common/hbgete.c
* harbour/source/common/hbstr.c
* harbour/source/common/hbver.c
* harbour/source/common/hbverdsp.c
* harbour/source/compiler/cmdcheck.c
* harbour/source/compiler/fixflex.c
* harbour/source/compiler/gencobj.c
* harbour/source/compiler/genobj32.c
* harbour/source/compiler/harbour.c
* harbour/source/compiler/harbour.l
* harbour/source/compiler/harbour.y
* harbour/source/compiler/harbour.yyc
* harbour/source/compiler/hbfix.c
* harbour/source/compiler/hbfunchk.c
* harbour/source/pp/ppcore.c
* harbour/source/pp/ppgen.c
* harbour/source/pp/pplib.c
* harbour/source/rdd/dbcmd.c
* harbour/source/rdd/workarea.c
* harbour/source/rdd/dbfcdx/dbfcdx1.c
* harbour/source/rdd/dbffpt/dbffpt1.c
* harbour/source/rdd/hsx/hsx.c
* harbour/source/rtl/accept.c
* harbour/source/rtl/ampm.c
* harbour/source/rtl/console.c
* harbour/source/rtl/defpath.c
* harbour/source/rtl/errorint.c
* harbour/source/rtl/filesys.c
* harbour/source/rtl/fkmax.c
* harbour/source/rtl/fstemp.c
* harbour/source/rtl/hbffind.c
* harbour/source/rtl/hbgtcore.c
* harbour/source/rtl/langapi.c
* harbour/source/rtl/seconds.c
* harbour/source/rtl/set.c
* harbour/source/rtl/tobject.prg
* harbour/source/rtl/transfrm.c
* harbour/source/rtl/gtcrs/chrmap.c
* harbour/source/rtl/gtcrs/gtcrs.c
* harbour/source/rtl/gtcrs/gtcrs.h
* harbour/source/rtl/gtpca/gtpca.c
* harbour/source/rtl/gtwvt/gtwvt.c
* harbour/source/rtl/gtxwc/gtxwc.c
* harbour/source/vm/classes.c
* harbour/source/vm/cmdarg.c
* harbour/source/vm/debug.c
* harbour/source/vm/estack.c
* harbour/source/vm/fm.c
* harbour/source/vm/hvm.c
* harbour/source/vm/macro.c
* harbour/source/vm/proc.c
* harbour/source/vm/runner.c
* harbour/utils/hbmake/hbmlang.c
* harbour/utils/hbpp/hbpp.c
* harbour/utils/hbpp/hbppcomp.c
* harbour/utils/hbpp/hbppcore.c
* harbour/utils/hbpp/hbpplib.c
* harbour/utils/hbpp/pragma.c
* harbour/utils/hbver/hbverfix.c
* general code cleanup: all strcpy() and strcat() replaced hb strn*()
and hb_strn*(), sprintf() by snprintf(), etc.
It fixed some possible buffer overflow but it's also possible that
it will exploit some some hidden so far problems but I strongly
prefer to know about them ASAP to fix them before final 1.0 release.
! fixed bug I introduce in codeblock falgs which disabled early macro
evaluation in codeblocks.
! added missing protection against execution by bison destructor for
used CBSTART token on syntax error.
% use PP stringify logik added for FLEX support to remove all redundant
spaces in stringified for early macro evaluation codeblocks and add
spaces between operators if after preprocessing they were removed.
Now we are supporting also some code which cannot be compiled by
Clipper.
% cleaned and improved the speed of printer redirecting in console code.
Chen please check if CG still reports problems and if not ubdate
TODO/TOFIX or inform me about them.
* some cleanups in building process for different *nixes: MacOSX, SunOS,
*BSD, etc.
* removed not longer necessary (I hope) compiler flag to force default
'char' type as signed. Now Harbour should work with signed and unsigned
char without any problems. To other developers: please remember that
when you are using 'char' as 8 bytes signed integer then it's a bug.
Always explicitly use: 'signed char' in such case. On some platforms
it's not possible to set default type for 'char' so if you hardcode
that 'char' is signed or unsigned somewhere then code will not be
portable. Chen if you will find a while to also rebuild Harbour with
BCC and -K switch to make some tests with CG then I'll be thankful.
* harbour/include/hbclass.ch
+ added validation for class data names. As additional preprocessor
rule to not use <!marker!>
* harbour/include/hboo.ch
* harbour/source/rtl/tclass.prg
* harbour/source/vm/classes.c
+ added delegate messages
* harbour/include/hbstack.h
* harbour/source/vm/arrays.c
* harbour/source/vm/estack.c
* harbour/source/vm/hvm.c
* harbour/source/vm/proc.c
+ added startup symbol to hb_stack. It gives very good stop
condition for all procedures which trace stack calls and
resolves the problem with hb_stack.pBase which was never
pointing to valid function/procedure symbol when no symbol
was put on HVM stack. Now after hb_stackInit() the first
item is allocated for "hb_stackInit()" symbol so hb_stack.pBase
is always a pointer to valid function/procedure symbol.
* changed the guard condition for buggy code in hb_stackPop()
and similar code from:
hb_stack.pPos < hb_stack.pItems
to:
hb_stack.pPos <= hb_stack.pBase
The old condition was generating usable error message only in the
startup function. In deeply called functions it was only waste of
CPU time on one of the most often call functions. Before it was
activated internal stack structures were corrupted.
If we were leaving for many years without really working stack
underflow protection then maybe we should think about disabling
it at when HB_STACK_MACROS are used and keep it only in real
stack functions for HVM developers. Single protection in
hb_stackOldFrame() I've just added is enough for basic C code
validation.
I created the second version of stack macros without it in
hbstack.h but I would like to hear other developers opinion.
* harbour/include/hbclass.ch
* most of the rules rewritten
! fixed some wrong rules and general cleanup
+ added additional code validation
! fixed compilation of more then one class in single file.
Now it's even possible to declare all classes at beginning of
single file and then implementing their methods in any order
! fixed using static classes and classes
! fixed compilation without <ClassName>_ prefix in method names
+ added support for HB_CLS_NO_DECORATION macro which disable
adding <ClassName>_ prefix to method names - this macro is
set by default when HB_SHORTNAMES is set.
+ added support for declared parameters validation - it can be
disabled with HB_CLS_NO_PARAMS_ERR and I had to disable it
by default due to problems with our preprocessor.
Ryszard seems that our PP has serious problems with decoding
directives when there is no space between symbol and some other
non symbol character. I had to add some workarounds and even
introduce buggy rules to make it working. Please look at it.
You can remove #define HB_CLS_NO_PARAMS_ERR from hbclass.ch
and try to rebuild Harbour core code to see the problem.
* harbour/include/hboo.ch
* harbour/source/vm/classes.c
+ added support for new primitive message: HB_OO_MSG_PERFORM
* harbour/source/rtl/tclass.prg
- removed <lPersistent> parameter from HBClass messages and
internals data. Persistent is supported as scope bit and
separate variable was redundant.
- removed stripping of () from message names. Here is not a place
to fix wrong preprocessor rules.
* harbour/utils/hbtest/rt_class.prg
* use: METHOD PROCEDURE ... CALSS ...
instead of: PROCEDURE ... CALSS ...
The first version is preferable syntax.
* harbour/source/debug/dbgtmenu.prg
* harbour/source/rtl/checkbox.prg
! fixed some parameters in method declaration - global cleanup
will have to wait for preprocessor fixes
Hi all,
Please make test with current hbclass.ch code.
I hope that I haven't broken too much things ;-) but I rewrite
from scratch most rules and it's possible that I missed sth or
made some stupid typos. Current version is much shorter and should
be easier to updated. For sure I've intentionally changed one thing.
CLASSDATA was ignoring SHARED attribute and always created shared
class variables. Seems that it was long existing typo but the fix
may interact with already existing code which needs SHARED class
variables but does not use SHARED clause in CLASSDATA declaration.
In such case please update it and add missing SHARED.
Also in the end of CLASS declaration we have:
[ ; #translate Super( <SuperClassN> ): => ::<SuperClassN>: ] ;
[ ; #translate Super( <SuperClass1> ): => ::<SuperClass1>: ] ;
[ ; #translate Super(): => ::<SuperClass1>: ] ;
[ ; #translate Super: => ::<SuperClass1>: ] ;
[ ; #translate ::Super : => ::<SuperClass1>: ]
These rules introduce very serious bug - they are breaking supercasting
in code which makes sth like:
::super:super:super:msg
or in any other code which sends SUPER message to some other class
objects. I will have to remove them. At least the last three ones.
There were some other things I wanted to write about but it's too late
and I'm to tired - sorry. If you will have any question please ask. if
you will notice some problems with current rules please inform me.
* harbour/source/vm/classes.c
* allow to access object variables using assign messages without
parameter. I do not want to add symmetric behavior for access messages
though it's technically possible but such things should be controlled
by programmer because access messages can have less restricted scoping
then assign ones (READONLY) so I'll add new rule for it in hbclass.ch
* harbour/source/vm/hvm.c
* fixed warning message when object variable reference is
generated using macro compiler without '_' as prefix.
* harbour/include/common.ch
+ added ISSYMBOL()
* harbour/include/hbextern.ch
- removed __CLS_PARAM()
* harbour/include/hbclass.ch
* harbour/source/rtl/tclass.prg
* harbour/source/vm/classes.c
* replaced __CLS_PAR00() and __CLS_PARAM() functions by preprocessor
rules. These functions are not longer necessary though I left them
in classes.c for backward binary compatibility. Probably they will
be removed in the future.
! use function pointers (@<funcname>()) instead of function names
with REQUEST for super classes ID. It fixes using STATIC class
functions.
* harbour/make_rpm.sh
* check for rpmbuild also when BUGGY_RPM is set
* harbour/make_tgz.sh
* removed rebuild hbpptest with shared libraries
* harbour/include/hbapicls.h
+ added definitions for hb_clsCreate(), hb_clsAdd(), hb_clsAssociate()
* harbour/include/hbapierr.h
* harbour/source/rtl/errorapi.c
+ added hb_errFuncName - pseudo function name which can be used as
operation description in new error object. It should help to simplify
some code and fix function names when RT error is generated from C
function which can be executed from different .prg functions.
* harbour/include/hbclass.ch
+ added some missing Classy(y) compatible object variable type
descriptions: Int, Integer, Block
* harbour/source/rdd/dbfcdx/dbfcdx1.c
! disabled early retrieving from the cache key position and key count
* harbour/include/hbvm.h
* harbour/source/vm/hvm.c
+ added: void hb_vmPushEvalSym( void ) for the code which do not
want to access any [P]HB_SYMB structures
* changed symbol name in hb_symEval from __EVAL to EVAL and modified
hb_symEval registration method to not register hb_vmDoBlock as global
function. Having PHB_DYNS address for "EVAL" in hb_symEval.pDynSym
allows to eliminate some strcmp() when we are looking for EVAL public
symbol.
! fixed symbol table updating in PCODE functions for future multi module
.hrb files
* harbour/source/vm/proc.c
* use hb_symEval.pDynSym instead of strcmp()
* harbour/source/vm/arrays.c
* harbour/source/vm/debug.c
* minor code cleanup
* harbour/source/rtl/tclass.prg
* harbour/source/vm/classes.c
% separate message hash table from methods table - it will cause farther
reduction of allocated memory - many thanks to all people who send
me statistics about number of used classes and symbols from their code.
% use hb_symEval.pDynSym
+ added support for object variable type scope checking like in Class(y).
! fixed typo in pushing object class variables by reference
% s_pClasses is now indexed directly by class handle
% some other optimiztions
! make hidden and non virtual invisible in child classes if it overloaded
some other non hidden method. In such case the overloaded method is used
and can be accessed.
! make friend functions real method class oriented not (super)object for
hidden messages
* harbour/source/vm/itemapi.c
* minor modification in function order to group together the ones
which can operate on reference counters
+ added additional stop condition in hb_itemUnRef() - we will have
to make some modifications for the code which execute hb_itemUnRef()
to resolve some possible conflicts with operators overloading and
compiler optimizations
* harbour/source/vm/classes.c
* do not inherit friends - seems that our classes code was too
friendly ;-)
It also effectively resolves logical problem with accessing
overloaded non virtual methods from friends.
+ added __clsLock( <hClass> ) - it locks any farther class
modifications and can be used if programmer wants to be sure
that no one will try to hack his class definition. It's very
important when programmers work in a team on bigger project.
Please do not add to CVS any __clsUnLock() functions - if someone
needs it then he can create his own custom HVM build.
* code cleanup
* harbour/source/vm/eval.c
+ added hb_execFromArray() - idea and syntax borrowed from xHarbour's
HB_ExecFromArray() by Giancarlo Niccolai though it's independent
implementation. Now when we have support for functions with variable
number of parameters then we need sth like this function to fully
benefit from new feature. The following syntax is supported:
hb_execFromArray( <cFuncName> [, <aParams> ] )
hb_execFromArray( @<funcName>() [, <aParams> ] )
hb_execFromArray( <bCodeBlock> [, <aParams> ] )
hb_execFromArray( <oObject> , <cMethodName> [, <aParams> ] )
hb_execFromArray( <oObject> , @<msgName>() [, <aParams> ] )
or:
hb_execFromArray( <aExecArray> )
where <aExecArray> is in one of the following format:
{ <cFuncName> [, <params,...>] }
{ @<funcName>() [, <params,...>] }
{ <bCodeBlock> [, <params,...>] }
{ <oObject> , <cMethodName> [, <params,...>] }
{ <oObject> , @<msgName>() [, <params,...>] }
* harbour/source/rtl/symbol.prg
* removed C code inside #pragma BEGINDUMP/ENDDUMP
now it's only .prg code which uses variable parameters function
and hb_execFromArray()
* harbour/include/hbclass.ch
* harbour/include/hbvm.h
* harbour/source/rtl/tclass.prg
* harbour/source/vm/classes.c
* harbour/source/vm/hvm.c
! fixed bug in real codeblock scoping which was exploited by
dictionary resizing
* changed ACCESS messages to ASSIGN ones when object item
reference is created for proper READONLY scope checking.
The reference to object variable can be created only when
caller has sufficient ASSIGN privileges.
+ added FRIEND CLASS and FRIEND FUNCTION support.
It's enough to add class definition:
FRIEND CLASS <classFunc1> [, <classFuncN> ]
and/or:
FRIEND FUNCTION <FuncName1> [, <FuncNameN> ]
and all methods of given class or given function will be able
to access private variables.
Warning!!! Friends cannot access overloaded non virtual methods.
This feature is available _ONLY_ for real class members.
+ added MODULE FRIENDLY to class definition. It causes that all other
functions and classes defined in the same .prg module will have
friend privileges. In such way works xHarbour and there is now way
to disable this "feature" what is IMHO bug. In Harbour programmer
has to explicitly enable it (until he will not change / add new
preprocessor rule and set it as default ;-)). Syntax:
CREATE CLASS .... MODULE FRIENDLY
...
END CLASS
* harbour/source/vm/proc.c
* harbour/source/vm/runner.c
* updated function symbols processing
* harbour/source/compiler/harbour.c
* added note in hb_compOptimizeFrames() about exceeding maximum number
of local variables (255). We should add new pcode(s) HB_P_LARGE[V]FRAME
or generate compile time error.
* harbour/source/vm/macro.c
% minor optimizations
* harbour/contrib/rdd_ads/ads1.c
* synced with recent xHarbour fixes
* harbour/include/hbdefs.h
* indenting
* harbour/include/hbexprb.c
* harbour/include/hbexprop.h
* harbour/source/common/expropt2.c
+ added compile time optimization for STOD(cConstDateString)
covered by -kh compiler extension (default)
It allows to keep the same source code for Clipper and
Harbour and benefits from data constants without using
0dYYYYMMDD values
* harbour/source/vm/classes.c
* restored the original 3-rd parameter in hb_clsAdd to void(void) -
PHB_FUNC - and added translation for PHB_SYMB to not force using
[P]HB_SYMB in 3-rd party code
* harbour/source/vm/estack.c
* added protection against possible GPF after executing
hb_stackBaseProcOffset() when first item on the stack
was not HB_IT_SYMBOL - it can happen in some seldom
cases. Probably some more general solution like leaving
first dummy item on HVM stack for breaking stack scan
loops will be better. I'll think about it.
* harbour/source/vm/itemapi.c
! fixed clearing enumerators
* harbour/include/hbapi.h
* harbour/include/hbapicls.h
* harbour/include/hbpcode.h
* harbour/include/hbxvm.h
* harbour/source/compiler/genc.c
* harbour/source/compiler/gencc.c
* harbour/source/compiler/hbdead.c
* harbour/source/compiler/hbfix.c
* harbour/source/compiler/hblbl.c
* harbour/source/compiler/hbpcode.c
* harbour/source/compiler/hbstripl.c
* harbour/source/vm/arrays.c
* harbour/source/vm/classes.c
* harbour/source/vm/codebloc.c
* harbour/source/vm/hvm.c
* harbour/source/vm/itemapi.c
+ added three new PCODEs:
HB_P_MACROSEND - to use for: s:=1,2,3"; o:=send(&s)
HB_P_PUSHOVARREF - to create references to object variables: @o:var
HB_P_ARRAYPUSHREF - to create references to array items, it can be used
in some optimization, f.e.: a[ <exp1> ] += <exp2>
or directly by: func( @a[ <exp> ] )
if we add passing array elements by reference
Implemented in HVM and PCODE generation, the compiler has to be
modified yet to use them.
* changed last parameter in hb_codeblockGetRef() - I'd like to have
all variables in hb_struRefer structure in one place: hb_itemUnRefOnce()
for easier modifications in the future.
* replaced in hb_struRefer 'itemsbase' with 'array'.
+ added hb_arrayGetItemRef() to create references to array elements.
Such reference updates array reference counters.
* changed STATICs passed by reference to use new array item references.
! block destructor execution after classy releasing on HVM exit
* harbour/source/vm/classes.c
+ added hb_clsRealMethodName() function which I'm using in some
test code
* harbour/tests/clsscast.prg
* updated to use __CLS_CNTSHRDATA() instead of __CLS_CNTCLSDATA()
* harbour/utils/hbtest/rt_class.prg
+ added tests for class and shared class variables/allocating
* xharbour/include/hbvm.h
* xharbour/source/vm/hvm.c
+ added hb_vmPushDynSym( PHB_DYNS )
It should allow most applications to not use [P]HB_SYMB at all.
Removing PHB_SYMB from 3-rd party .c code may allow us to add
freeing unused symbol tables from HVM in the future.
* harbour/source/vm/classes.c
* temporary restored hb_objGetpMethod()
+ added __ClsCntClasses()
! allocated real methods for OnError and Destructor to keep
the same behavior in these methods as in any others, f.e.
scoping checking or debugging.
* harbour/common.mak
* harbour/utils/hbtest/Makefile
* harbour/utils/hbtest/hbtest.prg
+ harbour/utils/hbtest/rt_class.prg
+ added tests for our classy code. Now destructors and instance
area allocating/casting. Some other in the future.
* harbour/contrib/rdd_ads/ads1.c
* synced with recent Brian fixes in xHarbour
* harbour/include/hbapi.h
+ added 'method' member to hb_struBlock structure
* harbour/source/vm/hvm.c
* initialize 'method' member in hb_struBlock structure
* harbour/source/vm/proc.c
* changed the name of last parameter of hb_procname() from
bSkipBlock to fMethodName and modified to use information
about the class of executed codeblock from new hb_struBlock
members
* harbour/source/vm/classes.c
* removed hb_objGetpMethod() - I hope it's not longer used
* added real codeblock scoping.
In Clipper there is no information where the codeblock where
created and what priviladges/scopes it should has.
Class(y) to resovle this problem when codeblock is executed scans
the HVM stack for the nearest method call and takes scopes defined
for this method. It's a workaround which allow to break standard
access rights though seems reasonable when it's not possible to
store information where the block is created. I've added to block
item structure information about class and method where code block
was created so we can use the exact method priviladges.
Now Harbour classy code can work exactly like Class(y) when compiled
with -DHB_CLASSY_BLOCK_SCOPE and with real code block scoping when
compiled with -DHB_REAL_BLOCK_SCOPE. I set the second (real code
block scopes) as default. If you think we should be strict Class(y)
compatible here then please inform me and I'll change default setting.
+ tests/clsscope.prg
+ added demonstration/test code for class method scoping
* harbour/source/vm/arrays.c
* harbour/source/vm/classes.c
! fixed multiple use of supercasted object I broke in last commit
* removed some unused code and moved some scoping checking to
class creation code
* harbour/include/hbvm.h
* harbour/source/vm/classes.c
* harbour/source/vm/hvm.c
+ added hb_vmRequestReenter() and hb_vmRequestRestore()
+ added executing destructors when some exception is active
I forgot about it in previous commit.
+ harbour/tests/destruct.prg
+ added example/test code for object destructors
+ harbour/doc/destruct.txt
+ added description for object destructors in Harbour
* harbour/include/error.ch
+ added new error code EG_DESTRUCTOR
* harbour/source/lang/msgpl852.c
* harbour/source/lang/msgpliso.c
* harbour/source/lang/msgplmaz.c
* harbour/source/lang/msgplwin.c
* harbour/source/rtl/langapi.c
+ added desription for new error code - other language modules
have to be updated
* harbour/include/hbapi.h
+ added hb_gcRefCheck() and cover some hb_gc* functions by
_HB_API_INTERNAL_ macro
* harbour/source/vm/itemapi.c
! fixed possible RT error generation when some exception is active
* harbour/include/hbapicls.h
* harbour/include/hbclass.ch
* harbour/include/hboo.ch
* harbour/source/rtl/tclass.prg
* harbour/source/vm/arrays.c
* harbour/source/vm/classes.c
+ added support for object destructors
* harbour/source/vm/garbage.c
+ added support for object destructors
+ added logic to detect buggu .prg code which uses destructors
see doc/destruct.txt for more info.
It's also possible that this code will exploit some bugs
in other code which uses GC allocated memory blocks.
* harbour/source/vm/classes.c
* keep class shared data in separate array
+ added __CLS_CNTSHRDATA( hClass ) -> nSharedDatas
% some minor optimizations
* harbour/tests/clsscast.prg
+ added test code for shared class data allocating and casting
* harbour/include/hbapicls.h
* harbour/source/vm/hvm.c
* harbour/source/vm/itemapi.c
+ added support for FOR EACH overloading - it's work in progress
do not create any code which may use current solution - it may
change in the nearest future
* harbour/include/hbapicls.ch
* added HB_EXPORT to public functions and some internal covered by
_HB_API_INTERNAL_ macro
* harbour/include/hboo.ch
+ added HB_OO_CLSTP_NONVIRTUAL and HB_OO_CLSTP_OVERLOADED
* harbour/source/rtl/tclass.prg
! do not add supercast class messages - now it's done automatically
by __clsNew() function with proper instance area offset updating
! enumerate instance class datas in __clsAddMsg() from 1 - inherited
instance variables are managed internally by classy code with
proper instance area offset updating
! use __CLS_CNTCLSDATA() as start offset for class data. Do not
try to calculate it yourself - some of super classes can be ignored
when they are appear in the inheritance tree more then once so it's
not possible to calculate class data or instance data start offset
using simple sum of class or instance variables in super classes.
* harbour/source/vm/classes.c
! fixed instance area casting
! fixed class variables casting
! fixed multi-inheritance when the same class can apear more then
once in super classes tree.
! Do not add unnecessary instance variables for the same class when
it's inherited more then once.
! Do not add unnecessary class variables for the same class when
it's inherited more then once.
! Do not add unnecessary initialization class and instance variables
+ added support for non virtual messages
+ added support for static and casted scoping
+ super cast messages added automatically. They are used to dynamic
recalculation of instance are offsets and to avoid multiple inheritance
of the same class so please do not overload them or you will have as
result something what we have before recent modifications in the
instance and class data area. Just simply run tests/clsccast.prg
and tests/clsicast.prg compiled with current CVS code and last
release code or with xHarbour and compare the results.
Also Class(y) does not pass these tests and I do not know if any
other dynamic OOP model in xbase languages can properly address it.
BTW maybe I should add RT error when .prg code will try to delete
or overwrite class cast message. For me it seems to be reasonable
and what's your opinion?
* make hidden class members non virtual by default. It can be disabled
by compiling classes.c with -DHB_VIRTUAL_HIDDEN but IMHO keeping
HIDDEN members as virtual causes that they are not really HIDDEN
because subclasses can simply overwrite them. It also means that
it's not possible to create class with some private data and
methods which will never interact with any subclass code created
by other programmers where name conflict can appear. So one of
the most important OOP features is missing in such case.
See tests/clsnv.prg as an example for non virtual hidden members.
+ tests/clsicast.prg
+ added test code for proper instance area allocating and casting
+ tests/clsccast.prg
+ added test code for proper class data allocating and casting
+ tests/clsnv.prg
+ added test code for non virtual hidden class members
Now we should be able to create and class model even replicate the
static one like in C++ using current class engine which still fully
supports dynamic bindings. It consumes less memory and due to much
more efficient hashing it should be faster then it was though some
other minor optimization can be add and I'll plan to make them in
some spare time.
The item type verification in assignment is still missing. I'll add
it when I'll collect some statistic informantion I'd like to ask
[x]Harbour users. I need these information to tune some internal
structures where I can balance between speed and memory allocation
to statistically optimal form.
Marek asked me to add passing object datas by reference and I'll do
that but I'd like to ask Ryszard to add support for:
@<oVar>:<message>
to compiler. I'll implement all other HVM modifications. If you can
please also add support for:
<oVar>:&<cMsgName>[(...)]
For this we do not need any HVM modifications or new PCODEs.
We are supporting xBase++ macro list compilation in:
cList:="1,2,3"
x := aVar[ &cList ]
aVar:={ &cList }
func( &cList )
But we do not support:
<oVar>:<message>( &cList )
IMHO it looks ugly. If we have this syntax for function call then we
should also support it in message sending.
Ryszard can you make necessary compiler modifications?
I'm also thinking about adding support for variable parameters
func myfunc(...)
[...]
return xVar
In few cases it will help to encode some function much more efficient
then now.
I'll add Class(y) compatible functions used in class(y) header files
so it will be possible to use original class(y) .ch files in Harbour
though it will not be the most efficient because we have @func() operator
which gives better performance then using codeblocks. Anyhow classy
create separate meta class for each class with CLASS members and
<clasName>() function always return such meta class object so for full
Class(y) compatibility we need to generate differ .prg code.
But all such modifications now can be done on preprocessor and
.prg level and they will not need .c code modification.
We should make them to give user interface for our new OOP features.
Now I'm waiting for reports about any problems with current classy
code.
* harbour/include/hbapi.h
* harbour/source/vm/hvm.c
* harbour/source/vm/codebloc.c
* harbour/source/vm/arrays.c
* moved static base offset from hb_struBlock structure
to HB_CODEBLOCK structure
+ added hclass member to hb_struBlock - it will be used in
the future for checking codeblock scope in classy so we will
real scope checking also for messages sent from codeblocks.
- removed supercast and superoffset members from hb_struArray
structure.
* harbour/include/hbclass.ch
* added class(y) like
@:<MessageName>([<MsgParams,...>])
send operator. It's not exactly the same as in class(y) where
this operator is hardcoded to executing function directly,
needs method name instead of message name and is linked statically.
In Harbour this operator uses message name so can be used also for
instance variables and make dynamic casting to the class from which
current method is inherited. In short words sending messages to @:
instead of :: causes that they work like non-virtual messages in
C++ mode.
If you do not use the same method body in different classes
then you can also use explicitly self casting:
::<myclass>:<msgname>[(...)]
and it will be a little bit faster
* harbour/include/hboo.ch
+ added: HB_OO_MSG_ASSIGN, HB_OO_MSG_ACCESS,
HB_OO_MSG_CLSASSIGN, HB_OO_MSG_CLSACCESS
They should be used insted of HB_OO_MSG_DATA and HB_OO_MSG_CLSDATA
This resolves problems with name conflicts when we were detecting
type of message (ACCESS/ASSIGN) by checking the first character
in message name. F.e. now it's possible to create exported instance
variable called __WithObject and it will be used in all WITH OBJECT
statement instead of the base object value. It's simple and effective
WITH OBJECT overloading.
I kept backward compatibility for HB_OO_MSG_DATA and HB_OO_MSG_CLSDATA
but I strongly suggest to update code to use new constants.
+ added HB_OO_MSG_REALCLASS
* harbour/source/rtl/objfunc.prg
* harbour/source/rtl/tobject.prg
* harbour/source/rtl/tclass.prg
* use HB_OO_MSG_[CLS]{ASSIGN,ACCESS} instead of HB_OO_MSG_[CLS]DATA
* harbour/source/rtl/tclass.prg
+ added REALCLASS message to creted classes - it's used for @: operator
* harbour/source/vm/classes.c
* updated for above modifications
* calculate instance area offset in supercasting dynamically - it
will allow to eliminate multiple instance area allocating when
in the inheritance tree the same class exists more then once and
also quite easy add support for non-virtual messages.
! fixed GPF in __CLSINSTSUPER() class function generate HVM exception
% do not inherit unaccessible inline blocks
* some other minor optimization, fixes and code cleanups
* harbour/source/rdd/usrrdd/usrrdd.c
! fixed HB_TRACE message
* harbour/source/rtl/errorapi.c
! generate internal error if ErrorNew() function does not return an object
* harbour/TODO
+ added simpler example for memory leak in macro compiler:
? type("user input")
* harbour/source/macro/macro.y
* replaced TABs with SPACEs
* harbour/source/vm/classes.c
* added some TRACE() messages
+ added support for executing functions with <symItem>:EXEC()
registered dynamically after creating <symItem>
* harbour/source/vm/hvm.c
* minor modification
* harbour/include/hbexprc.c
! fixed bug in wrong integer negating, f.e.:
proc main(); local i:=0; i-=-32768; ? i; return
! fixed PCODE generated for +=, -=, /=, *= expressions when right side
of expression is undefined variable - it's possible that it will be
field and we will have RT error. It fixes tt4.prg example form TODO
file.
* harbour/TODO
- removed tt4.prg example from TOFIX
* harbour/source/vm/classes.c
! fixed supercast message validation
* harbour/source/vm/hvm.c
! fixed very bad typo in hb_vmMinus() which can cause wrong
results when on 64-bit integer overflow
* harbour/ChangeLog
+ harbour/ChangeLog.016
! added ChangeLog.016 and updated number - mistake in my previous commit
* harbour/source/vm/classes.c
* stronger parameters validation and fixed some possible problems
in hb_objGetMethod()
+ added support for assigning enumerator value by:
<enum>:__enumValue(<newVal>)
and enumerator index by:
<enum>:__enumIndex(<newIndex>)
It's a work in progress - please do not create any code which may
need such functionality yet
* harbour/source/vm/debug.c
* harbour/source/vm/hvm.c
* minor code cleanup
* harbour/include/hboo.ch
+ added HB_OO_CLSTP_PERSIST and HB_OO_MSG_INITIALIZED
* harbour/include/hbapi.h
* harbour/include/hbvmpub.h
* harbour/source/vm/dynsym.c
% changed HB_HANDLE hArea to USHORT uiArea to reduce HB_DYNS size.
RDD code internally uses USHORT as area number so it's not
necessary to keep it as HB_HANDLE value.
* harbour/source/vm/arrays.c
* modified internal static function name
* harbour/source/vm/itemapi.c
+ added missing HB_TRACE in hb_itemClone()
* harbour/source/vm/classes.c
! moved initialization values to separate structure not bound with
methods. We can inherit the same method names from more then one
object so we will store only the first one but we are inheriting
whole instance area which is accessible with super casting (last
fixes) so we have to properly initialize it even if methods does
not exist. This modification also fixes some possible memory leaks.
% replaced bIsPersistent by HB_OO_CLSTP_PERSIST in uiScope in method
definition
! added basic parameter validation to __CLSADDMSG() to avoid some
possible strange behavior at runtime when broken messages are
defined.
* updated __OBJHASMSG() and __OBJSENDMSG() to accept SYMBOL items
too (@funcName()). Using symbol items it faster then strings.
Also added support to use non array parametes. F.e. now
__OBJHASMSG( {||NIL}, "EVAL" )
returns TRUE
* some other fixes, reduced memory consumption and speed optimizations
+ harbour/source/codepage/uckam.c
+ added missing in my previous commit file
* harbour/include/hbvmpub.h
* harbour/source/vm/dynsym.c
+ added USHORT uiSymNum to HB_DYNS structure - I will need it for MT
as index for thread local HB_DYNSYM values for MT version in the
future but now I use it as perfectly efficient continuous hash
value for all symbols. Of course PHB_DYNS address is also perfectly
good hash value and in classes code can be used but it does not
guaranties that all messages will cover well whole 16bit area used
as message pool without dynamic bucket size modification.
* harbour/source/vm/classes.c
* changed hashing method. Now it uses really unique base hash key
values which can cover whole 16 bit area so mathematically it's
not be possible to break it by any combination of method names
as long as our dynamic symbol table will be limited to 2^16 symbols.
It still consumes more memory then necessary and I'll change it in
the future but it's much less then before.
The BUCKET size is smaller (4) and all calculations are done only
with bit shifts so it should be also faster.
* use ULONG instead of USHORT to calculate maximum number of methods
to avoid possible overflow problems if it reach 2^16 (rather
impossible in normal application - it will have to create more then
2^15 symbols)
! some other fixes and code cleanup
* harbour/source/vm/hvm.c
* minor modifications
* harbour/source/lang/msgcs852.c
* harbour/source/lang/msgcsiso.c
* harbour/source/lang/msgcskam.c
* harbour/source/lang/msgcswin.c
* typo fixed (Vojtech Obrdlik <vobrdlik centrum.cz>)
* harbour/include/hbapicdp.h
* harbour/source/codepage/Makefile
+ harbour/source/codepage/cpcs852.c
+ harbour/source/codepage/cpcsiso.c
+ harbour/source/codepage/cpcskam.c
+ harbour/source/codepage/cpcswin.c
+ harbour/source/codepage/uckam.c
* harbour/doc/en/lang.txt
* harbour/common.mak
+ added czech codepage support (Vojtech Obrdlik <vobrdlik centrum.cz>)
Vojtech many thanks.
We will have to fix our CDP code to work well with characters
with the same wight - now sorting with such codepages does not
work correctly, f.e. in CSISO:
CHR(65)+CHR(204) > CHR(65)+CHR(201)
but:
CHR(65)+CHR(201) >= CHR(65)+CHR(204)
as you can see comparison depends on string order:
s1 > s2 but not s2 < s1
It means that such codepages cannot be used in any sorting
systems like indexes until we will not fix internal CPD logic.
Alexander can you look at it?
If not then please inform me and I'll work on it in some spare
time.
* harbour/source/rtl/do.c
* minor RTE message simplification
* harbour/source/rtl/gtos2/gtos2.c
* casting
* harbour/source/vm/dynsym.c
+ added __DYNSN2SYM( <cName> ) -> symbolItem
* harbour/include/hbapi.h
* harbour/source/vm/arrays.c
+ added supercast and superoffset members to hb_struArray structure
* harbour/source/vm/classes.c
* harbour/source/rtl/tclass.prg
! fixed calculation of instance area offsets
! fixed accessing instance variables with super casting
+ added selfclass casting
+ added support for sending 'exec' and 'name' messages to
symbol items, f.e.:
funcSym := (@funcName())
? "Exacuting:", funcSym:name
funcSym:exec( param1, param2, ... )
* changed __CLASSNAME() to be Clipper compatible
* changed __CLSINST()/__CLASSINSTANCE() now accepts as third paramter
function name - Clipper compatible
! fixed GPF trap in __OBJGETCLSNAME() when executed with wrong parameter
* some other fixes and small speed improvement
* harbour/source/vm/classes.c
! fixed __SENDER() function to work with non-inline methods
! respect super casting in ClassName(), ClassH(), ClassSel() methods
% some optimizations
* harbour/include/hbrdddbf.h
* harbour/source/rdd/dbf1.c
* harbour/contrib/rdd_ads/ads1.c
* synced with xHarbour
* harbour/include/hbapi.h
+ added uiClass and uiMethod to HB_STACK_STATE structure
- removed puiClsTree from HB_BASEARRAY structure
* harbour/include/hbvmpub.h
! fixed typo in HB_ARRAY_OBJ() declaration
* harbour/source/vm/arrays.c
- removed puiClsTree from HB_BASEARRAY structure
* harbour/source/vm/classes.c
- removed static variable s_pMethod to make classes code MT safe
* store information about current method index and supercasting on
HVM stack in HB_STACK_STATE structure
! changed hb_objGetRealClsName() to not use puiClsTree - this functions
was never working as it should when object was supercasted.
Now it simply returns name of class where method was defined and
inherited.
- removed hb_objPopSuperCast() and changed last parameter in
hb_objGetMethod() from BOOL * to PHB_STACK_STATE
hb_objPopSuperCast() is not longer necessary
- removed hb_mthRequested() and first parameter from hb_mthAddTime()
+ added char * hb_clsName( USHORT uiClass );
+ added TOFIX notes in hb___msgGetData() and hb___msgSetData()
* harbour/source/vm/estack.c
+ added uiClass and uiMethod to HB_STACK_STATE structure
* harbour/source/vm/hvm.c
* updated for above modifications
* harbour/source/vm/proc.c
! do not use hb_objGetRealClsName() anymore but retrieve information
about _REAL_ class form HVM stack
* harbour/include/hbapi.h
* moved HB_STACK_STATE declaration from hbstack.h to hbapi.h
it's covered by _HB_API_INTERNAL_ macro so it should not
effect 3-rd party code
* modified hb_struSymbol structure:
LONG stackbase
replaced by:
PHB_STACK_STATE stackstate
this modification allows to keepadditional information bound with
function call stack accessible from different HVM modules.
Now it's used by memvars code to keep/update PRIVATE variables
stack pointers. I plan to store in HB_STACK_STATE structure
information additional information for classes code like super
casting or instance variables offsets in new OOP model I'm working on.
It can be also used by debugger code to retrieve some informations
about executed functions without active updating by main HVM loop.
+ added hb_memvarsClear() - cleanly clears all PRIVATE and PUBLIC
variables
+ added hb_memvarUpdatePrivatesBase() - updates PRIVATE stack base
offset so PRIVATE variables created in current function/procedure
will not be removed when it returns
- removed hb_memvarsRelease() and hb_memvarValueNew()
* harbour/include/hbstack.h
+ added hb_stackClearMevarsBase() - helper function for hb_memvarsClear()
clears PRIVATE stack offsets in executed functions
* changed to static offset from int to long - in different places we
were using int or long in HVM so I cleaned the HVM code to always
operate on the same type
* harbour/source/vm/estack.c
* set/restore PRIVATE stack base offset in hb_stackNewFrame()/
hb_stackOldFrame()
* updated for new HB_IT_SYMBOL structure
* harbour/source/vm/hvm.c
! removed setting/restoring PRIVATE stack base offset in hb_vmExecute()
It make code like:
eval(&("{||VAR:=1}"))
Clipper compatible
* updated for new HB_IT_SYMBOL structure
* changed order of execution exit procedures for clean memvars removing
and future destructors execution. I'll describe it better when I'll
add destructors.
* harbour/source/vm/memvars.c
! fixed CLEAR MEMORY - now this function should be safe in Harbour
It's not exactly compatible with Clipper because I intentionally
didn't replicated some Clipper bugs like possible memory corruption.
+ added hb_memvarsClear() - cleanly clears all PRIVATE and PUBLIC
variables
+ added hb_memvarUpdatePrivatesBase() - updates PRIVATE stack base
offset so PRIVATE variables created in current function/procedure
will not be removed when it returns
! fixed releasing PUBLIC and PRIVATE variables which were passed by
reference and are still active on HVM stack or in codeblocks as
detached locals (see: hb_memvarDetachDynSym())
* modified hb_memvarFindSymbol() to be more Clipper compatible
% optimized hb_memvarRelease() to operate or PHB_DYNS instead of
string comparison and not make linear dynamic symbol scan for
PUBLIC or not existing symbols
- removed hb_memvarReleasePublic()
* harbour/include/hbvmpub.h
* harbour/include/hbxvm.h
* harbour/source/compiler/gencc.c
* harbour/source/vm/classes.c
* harbour/source/vm/debug.c
* harbour/source/vm/itemapi.c
* harbour/source/vm/pcount.c
* harbour/source/vm/proc.c
* harbour/source/vm/pvalue.c
* updated for the above modifications
* harbour/source/rtl/memvarbl.prg
* harbour/source/rtl/menuto.prg
* use __mvEXIST( cMemvar ) instead of __mvSCOPE( cMemvar ) > HB_MV_ERROR
__mvEXIST() is much faster function
* harbour/source/rtl/type.c
* execute hb_memvarUpdatePrivatesBase() after macro type checking.
This should not be necessary but we are not Clipper compatible here
and this is work around for difference in our TYPE() implementation.
Clipper for:
? TYPE("VAR:=1")
create PUBLIC variable VAR when [x]Harbour PRIVATE one.
Should we try to make it Clipper compatible?
The above should fix problems reported with memvars. We are not 100%
Clipper compatible but unlike in Clipper we cannot break VM internals
using some operation on references to memvars and detached locals
and/or RELEASE.../ CLEAR MEMORY. This modifications should be intensively
tested. If you will find any problems with current code please inform me.
I'd like to hear your opinions about memvars created by TYPE() (see above).
Should we change it? It may not be very easy operation - we will have to
change macro compiler and add new PCODE for that.
* harbour/source/common/hbver.c
* extended C compiler information
* harbour/source/compiler/genc.c
* use hb_verHarbour() and hb_verCompiler() to for information
about Harbour build in generated .c files' headers
* harbour/source/rdd/dbfcdx/dbfcdx1.c
* harbour/source/rdd/dbfntx/dbfntx1.c
! fixed typo in my last commit - additional dummy evaluations of
EVAL block
* harbour/contrib/rdd_ads/ads1.c
! make GOTOP() when new index is open and is set as control one
* harbour/include/hbcomp.h
* harbour/include/hbstack.h
* harbour/include/hbxvm.h
* harbour/source/compiler/gencc.c
* harbour/source/compiler/hblbl.c
* harbour/source/vm/classes.c
* harbour/source/vm/estack.c
* harbour/source/vm/hvm.c
* harbour/source/vm/itemapi.c
* added automatic destructors for FOR EACH and WITH OBJECT statement
* s_lWithObjectBase changed to lWithObjectBase hb_stack membera
* added hb_stackWithObject*() functions/macros to manipulate
WITH OBJECT offset/item
* removed setting/restoring lForEach and lWithObject in functions
preamble/postamble
! fixed restoring s_lRecoverBase on HB_QUIT_REQUESTED
! fixed possible GPF on enumerators copping
* moved FOR EACH / WITH OBJECT massages suport from HVM to classy.c
! fixed access to first stack item in hb_vmIsLocalRef()
* harbour/TODO
- removed note about hb_objGetMethod() - it's already addressed
* harbour/include/hbapi.h
* harbour/include/hbvmpub.h
* harbour/source/vm/classes.c
+ added HB_ARRAY_OBJ() and changed HB_IS_OBJECT() to use it
instead of HB_OBJ_CLASS() - it allows to use HB_IS_OBJECT()
without including hbapicls.h
* harbour/include/hbapi.h
* harbour/source/vm/proc.c
+ added BOOL hb_procinfo( int iLevel, char * szName,
USHORT * puiLine, char * szFile )
* harbour/include/hbstack.h
* harbour/source/vm/estack.c
+ added hb_stackTotalItems(), hb_stackDateBuffer(),
hb_stackGetStaticsBase(), hb_stackSetStaticsBase(),
hb_stackBaseProcInfo()
* harbour/source/vm/garbage.c
* indenting
* harbour/source/vm/classes.c
* harbour/source/vm/codebloc.c
* harbour/source/vm/extend.c
* harbour/source/vm/fm.c
* harbour/source/vm/hvm.c
* replaced direct stack access by stack functions/macros
* harbour/source/vm/debug.c
* removed hb_stackLenGlobal() and replace it by hb_stackTopOffset()
Warning!!! hb_stackTopOffset() returnes results smaller by 1.
The TOP stack item is undefined and should not be accessed by
debuger.
* changed HB_DBG_VMSTKGLIST() to operate on functions/macros.
It's possible that the above will badly interact with core debugger
code so I stop farther modifications leaving them for someone who
knows debugger core code.
* harbour/include/hbapicls.h
* harbour/source/vm/classes.c
+ added hb_objHasMesage( PHB_ITEM pObject, PHB_DYNS pMessage )
+ added hb_objGetpMethod() for backward binary compatibility with FWH
* hidden for 3-rd party users hb_objGetMethod() and hb_objPopSuperCast()
If for some reason 3-rd party code will need these methods please
tell me in which case and I'll add necessary functions. Please
try to not use any non-public function. I strongly prefer to
add new public functions for which we will know that they are used
by 3-rd party code then create problems with binary compatibility
after updating local HVM functions.
