Commit Graph

288 Commits

Author SHA1 Message Date
svenbarth
d15cdefc37 pdecsub.pas:
* extend parse_proc_head() with the ability to deal with specializations of procdefs
Note: such a procdef is created as unregistered as this is used to determine the correct overload in tcallcandidates (through the use of the yet to be adapted generate_specialization_phase2())

git-svn-id: trunk@31771 -
2015-09-18 21:31:53 +00:00
svenbarth
17a0ac7fc0 pdecsub.pas:
* extend parse_proc_head() with support for /parsing/ generic functions (at least in mode Delphi, mode ObjFPC depends on the new isgeneric parameter to be set)
  * adjust parsing of interface mappings with a generic interface (note: in mode ObjFPC this now requires a "specialize" directly before the generic interface's name, which is more in line with other uses of "specialize")
pexpr.pas, factor:
  * don't call postfixoperators() if hadspecialize is set

tests/test/tgeneric79.pp:
  * adjust test to changed syntax

git-svn-id: trunk@31769 -
2015-09-18 16:24:07 +00:00
yury
432248cbf1 * Removed lot of unused vars.
git-svn-id: trunk@31732 -
2015-09-17 12:48:58 +00:00
svenbarth
84b9d9839c + extend tobjectdef with the possiblity to create it as unregistered
* for now all objectdefs are created as registered
Note: an additional parameter instead of an overload is used for tobjectdef.create as otherwise both constructors would need to be overridden in potential descendant CPU-specific classes...

git-svn-id: trunk@31592 -
2015-09-11 13:28:49 +00:00
florian
f1decfb6b6 * do not generate a vmt record for generics, they are only needed for specializations
git-svn-id: trunk@31261 -
2015-08-02 19:51:08 +00:00
Jonas Maebe
2dcd42d4f1 * fixed detection of an objcprotocols descending from a forward-defined
objcprotocol

git-svn-id: trunk@30169 -
2015-03-12 19:37:43 +00:00
svenbarth
7b216d7fa6 Fix for Mantis #27120.
pdecobj.pas, parse_object_members:
  * also allow class fields for helper types

+ added tests

git-svn-id: trunk@29270 -
2014-12-12 13:57:43 +00:00
svenbarth
49a9f4c1ea Fix for Mantis #26123.
pdecobj.pas, object_dec:
  * Always check for genericdef and genericlist and not genericdef and ifnot then genericlist.

+ added test

git-svn-id: trunk@27877 -
2014-06-06 15:19:45 +00:00
svenbarth
639a59df92 Added support for partial specialization. This should fix a few problems with generics, the tests for which will be added in the next days after I've verified them.
For partial specialization only the declaration is reparsed, but not method bodies.

The way generic parameters are passed around inside the compiler is changed: instead of creating new type symbols we keep a (name,def) pair so that the code in insert_generic_parameter_types can decide whether it needs to add a type symbol (for new undefined defs) or not (for real types and undefined defs that were passed on from the parent generic). This required the tfpobjectlist type of the genericlist variables/parameters to be changed to tfphashobjectlist.

For correctly parsing Delphi specializations as parameters in functions of records (or objects) the relationship between the def and its typesym must already be established during the parsing. For this the checks for forcing a "type is not completely defined" message needed to be adjusted to correctly handle nested types as well. This should as a sideeffect also allow the usage of nested constants, etc like was fixed for classes some months ago.

ToDo: 
  - if a generic is specialized with only fully defined types then we could generate the in the unit where it's used. This is not yet done.
  - currently we don't specialize generics that are currently parsed; maybe this could be improved in the future for better type compatibility checks
  - check whether the pausing of token recording for partial specializations works correct in context of hint modifiers

pgenutil.pas:
  * parse_generic_parameters: return a tfphashobjectlist instead of a tfpobjectlist (requires a few type adjustments in various other declarations)
  * maybe_insert_generic_rename_symbol, insert_generic_parameter_types: change genericlist from tfpobjectlist to tfphashobjectlist
  * parse_generic_specialization_types_internal: use is_generic instead of checking for df_generic
  * generate_specialization:
      + add a nested function to disable the requirement to check for method bodies
      * use the "simple" parameter parsing only for error recovery
      * instead of already creating a new type symbol for a parameter we use the found symbol's name and its def and maybe create it later on (therefor the type of tfpobjectlist was changed to tfphashobjectlist)
      * a partial specialization is specialized into the symtable of the def it is specialized in instead of one of the two global symtables
      * for now we handle partial specializations of generics we are currently parsing like before
      * don't continue recording generic tokens while we do a partial specialization
      * use the new unset_forwarddef function on the newly created defs
  * insert_generic_parameter_types: only create a new type symbol if the found type symbol does not yet have an owner (thus was freshly created for this generic declaration)

pdecobj.pas, object_dec:
  * change type of genericlist from tfpobjectlist to tfphashobjectlist
  * set the type sym for all object types that can be generic or inside a generic (needed for correctly parsing Delphi style generic declarations)

pdecsub.pas, parse_proc_head:
  * consume_generic_interface: always generate the specialization name as now all generics are "specialized" inside a generic
  * the assumption that the def index numbers are the same is no longer true as the genericdef might contain the defs of partial specializations which are not generated for full specializations

pdecvar.pas, read_record_fields:
  * we also need to check nested types whether they contain a not yet completely parsed record or object

ptype.pas:
  * read_named_type: 
      * change genericlist from tfpobjectlist to tfphashobjectlist
      * pass the typesymbol along to record_dec
  * resolve_forward_types: use is_generic instead of checking for df_generic
  * single_type: 
      * use is_generic instead of checking for df_generic
      * no need to check generic parameters
  * parse_record_members:
      + add parameter for the record's type symbol
      * setup the typesym <=> def relationship
  + record_dec: add parameter for the type symbol and pass it to parse_record_members
  * read_named_type, expr_type: use is_generic instead of checking for df_generic
  * array_dec & procvar_dec: change genericlist from tfpobjectlist to tfphashobjectlist

symdef.pas, tstoreddef:
  * improve the checks used in is_generic and is_specialization to really only work on true generics and true (and partial) specializations respectively
  * don't search the type parameters in the symtable, but store them in the PPU and load them from there
  - remove fillgenericparas method (including the calls in the descendants tarraydef, tprocvardef, tobjectdef and trecorddef)

defcmp.pas, compare_defs_ext:
  * handle partial specializations: specializations with only undefineddefs are compatible to generic defs

pdecl.pas, types_dec:
  * switch generictypelist from tfpobjectlist to tfphashobjectlist

ppu.pas:
  * increase PPU version

+ added tests that ensure that "not completely defined" checks for records (and objects) still work correctly

git-svn-id: trunk@27861 -
2014-06-05 20:05:05 +00:00
Jonas Maebe
02d36c56f7 * fixed compilation (changes after testing :/ )
git-svn-id: trunk@27840 -
2014-06-01 14:34:47 +00:00
Jonas Maebe
5e1a895e95 * removed JVM-specific creation of methodpointertype and
nestedprocpointertype; this was done initially before the JVM target knew
    about the voidpointertype, but is no longer necessary (also fixes
    mantis #26251)

git-svn-id: trunk@27838 -
2014-06-01 14:13:36 +00:00
Jonas Maebe
b57c95043f + support overriding tdef/tsym methods with target-specific functionality:
o made all (non-abstract) tdef and tsym constructors virtual
   o added c*def/c*sym classref types for every (non-abstract) t*def/t*sym
     class
   o added cpusym unit for every architecture that derives a tcpu*def/tcpu*sym
     class from the base classes, and initialises the c*def/c*sym classes with
     them. This is done so that the llvm target will be able to derive from
     the tcpu*def/sym classes without umpteen ifdefs, and it also means that
     the WPO can devirtualise everything because the c* variables are only
     initialised with one class type
   o replaced all t*def/t*sym constructor calls with c*def/c*sym constructor
     calls

git-svn-id: trunk@27361 -
2014-03-29 22:31:55 +00:00
svenbarth
ddb78fefdc Add a modeswitch for type helpers as discussed in core on 24th October 2013. It is disabled by default in all modes (afterall type helper support in Delphi started only beginning with XE3)
+ globtype.pas: add new modeswitch to modeswitch enum and name array
* ptype.pas & pdecobj.pas: check for new modeswitch instead of modeswitch class
* ppu.pas: increase ppu version as we've added a new modeswitch which requires correctly compiled units

* adjusted tests to enabled the modeswitch when necessary
+ added three new tests that check for correct functionality of modeswitch typehelpers

git-svn-id: trunk@26796 -
2014-02-16 12:58:24 +00:00
florian
4d5119bf1c * fixes several issues which cause warnings by the dfa code when using it to detect uninitialized variables
git-svn-id: trunk@26161 -
2013-12-01 17:02:08 +00:00
svenbarth
798bb91e90 Extract tdef.is_related plus its overrides in tobjectdef, trecorddef and tstringdef into a new function def_is_related in unit defcmp.
defcmp.pas:
  + add new function "def_is_related" which combines the "is_related" overloads of "tobjectdef", "trecorddef" and "tstringdef" (it returns "false" for other def types which is what "tdef.is_related" did)
  * compare_defs_ext & compatible_childmethod_resultdef: change call from "x.is_related" to "def_is_related(x,...)"
symtype.pas, tdef:
  - remove "is_related" method
symdef.pas:
  - remove "is_related" in "tobjectdef", "trecorddef" and "tstringdef"
  * tobjectdef.needs_inittable: for checking whether a Corba interface somehow inherits from a IInterface don't use "is_related" anymore (we want to avoid the dependency after all), but mimic the necessary functionality of "def_is_related"
htypechk.pas, nadd.pas, ncal.pas, ncnv.pas, ngtcon.pas, nld.pas, optvirt.pas, pdecobj.pas, pdecvar.pas, pexpr.pas, pgenutil.pas:
  * change call from "x.is_related" to "def_is_related(x,...)"
symtable.pas
  + use unit defcmp
  * change call from "x.is_related" to "def_is_related(x,...)"
jvm/njvmcnv.pas, jvm/njvmflw.pas:
  * change call from "x.is_related" to "def_is_related(x,...)"

git-svn-id: trunk@25847 -
2013-10-25 19:44:27 +00:00
svenbarth
76f6de5cf1 Refactor tobjectdef.find_implemented_interface out into unit defcmp so that the recently introduced cycle between symdef and defcmp can be broken again.
defcmp.pas:
  + add function "find_implemented_interface"
  * change method call of "find_implemented_interface" into function call
symdef.pas:
  - tobjectdef: remove method "find_implemented_interface"
  - remove use of unit "defcmp"
pgenutil.pas:
  * change method call of "find_implemented_interface" into function call
  + add use of unit "defcmp"
ncgcnv.pas, ncnv.pas, pdecobj.pas, pdecsub.pas, pdecvar.pas:
  * change method call of "find_implemented_interface" into function call

git-svn-id: trunk@25844 -
2013-10-23 19:05:00 +00:00
svenbarth
d91d4afb0f Fix for Mantis #25210 .
compiler/pdecobj.pas, object_dec:
  * since revision 25518 the global symtable of the current module is no longer popped and pushed again so that the defaware symtablestack can add the helper; thus we need to do this not only for static symtables, but for global ones as well
  * adjusted comment to reflect current situation

git-svn-id: trunk@25834 -
2013-10-20 11:33:01 +00:00
florian
2fdd3e2d0a + introduce tvariantrecbranch to be able to store
all needed information for iso compatible variant records
* new for variant records as required by iso pascal
+ tests

git-svn-id: trunk@24241 -
2013-04-14 15:50:42 +00:00
Jonas Maebe
3a03586ca9 * give an error when declaring a class as conforming to a forward-declared
interface: the compiler does not/cannot check whether the class
    implements all required methods in that case, and it moreover leads to
    crashes (mantis #24184). Older versions of Delphi did allow this (and
    don't check whether the interface methods are implemented either), but
    that's simply a (similar) bug in Delphi that has been fixed in XE at
    least
  * fixed compilation of webtbs/tw2727 after this fix

git-svn-id: trunk@24177 -
2013-04-07 12:18:31 +00:00
svenbarth
344571cb4e Added support for type helpers. In non Delphi modes they use "type helper" and in mode Delphi they use "record helper". They can also be used on constants.
symconst.pas:
  + extend "thelpertype" by "ht_type" which tells the code in "pdecobj.parse_extended_type" that a type helper declaration has been parsed
node.pas:
  + add a constant which identifies all constant node types
ptype.pas:
  + read_named_type: add a parameter "hadtypetoken" to tell the code whether a "type" token had been parsed before
  + read_named_type: if an identifier "helper" is parsed we need to check whether "hadtypetoken" is true and the modeswitch "m_class" is set, but the "m_delphi" one is not; in that case we have a "type helper" declaration
pgenutil.pas, generate_specialization:
  * adjust call to read_named_type
pdecl.pas, types_dec:
  * adjust call to read_named_type

pdecobj.pas:
  * parse_extended_type: extend for correct handling of primitive types (includes Delphi compatible handling as well) and reject types that are explicitly not allowed
  * method_dec: require "static" for class methods in type helpers
  * method_doc: allow constructors for type helpers as well
paramgr.pas, tparamanager:
  * set_common_funcretloc_info: handle type helper constructors like record constructors
  * handle_common_ret_in_param: the "self" value of a type helper constructor is also returned in a parameter
pexpr.pas:
  + add a function to postfixoperators which tries to find and apply a type helper for a given type
  * postfixoperators: try to apply type helpers for ordinal constants
  * postfixoperators: use the correct string type for string constants
  * postfixoperators: try to apply type helpers for enum constants
  * postfixoperators: try to apply type helpers for arrays
  * postfixoperators: try to apply type helpers for Variant
  * postfixoperators: try to apply type helpers for pointer types
  * postfixoperators: try to apply type helpers for other types
  * factor: check postfixoperators after _REALNUMBER, _CCHAR, _CWCHAR, _TRUE and _FALSE
  * factor: also check postfixoperators if a _POINT follows a _NIL

symdef.pas, tdefawaresymtablestack.addhelpers:
  * use "generate_objectpascal_helper_key" to generate the key
symtable.pas:
  + add function to generate the key value for the map of extended types using the extended def
  * adjust "search_last_objectpascal_helper" and "search_objectpascal_helper" to handle primitive types as well
  * use the new "generate_objectpascal_helper_key" function to generate the key

pparautl.pas:
  * insert_self_and_vmt_para: don't insert the $vmt symbol for record or type helpers (ToDo: check whether class helpers really need the symbol as well)
  * insert_self_and_vmt_para: pass "self" as var parameter for type helpers as well
psub.pas, generate_bodyentry_block: 
  * also allow type helpers for constructor methods
ncal.pas, tcallnode.gen_self_tree:
  * also use a temp variable for type helper constructors
ncgcal.pas, tcgcallnode.secondcallparan:
  * allow Pointers to be passed as address param if it is the Self value of a type helper extending a pointer type
  * correctly handle the location in case of type helper constructors

+ add tests

git-svn-id: trunk@23580 -
2013-02-06 09:49:35 +00:00
paul
7c663af588 compiler: also don't allow record constructors with only default arguments
git-svn-id: trunk@23438 -
2013-01-18 11:59:25 +00:00
paul
1b8369dd99 compiler: don't allow parameterless constructors
git-svn-id: trunk@23436 -
2013-01-18 01:24:04 +00:00
paul
e9615716c1 compiler: allow constructors in helpers for records
git-svn-id: trunk@23407 -
2013-01-16 13:47:22 +00:00
paul
1508fd427d compiler: handle calling convention of record (class)constructors/destructors later as it is done with other record methods
git-svn-id: trunk@23329 -
2013-01-06 17:04:28 +00:00
Jonas Maebe
3798b79fd7 + optimization that (re)orders instance fields of Delphi-style classes in
order to minimise memory losses due to alignment padding. Not yet enabled
    by default at any optimization level, but can be (de)activated separately
    via -Oo(no)orderfields
   o added separate tdef.structalignment method that returns the alignment
     of a type when it appears in a record/object/class (factors out
     AIX-specific double alignment in structs)
   o changed the handling of the offset of a delegate interface
     implemented via a field, by taking the field offset on demand
     rather than at declaration time (because the ordering optimization
     causes the offsets of fields to be unknown until the entire
     declaration has been parsed)

git-svn-id: trunk@21947 -
2012-07-22 16:47:19 +00:00
svenbarth
d2fabd2a22 Fix for Mantis #21350
+ pgenutil.pas: 
    add a procedure which adds a type symbol to a non-Delphi-mode generic class or record which has the same name as the unit global dummy symbol for that generic. I don't know why I had that idea earlier as this will simplify some of the conditions in the parser again (I haven't changed these yet, but I hope to do that at least when I start working on generic functions).
* pgenutil.pas, generate_specialization:
    correctly handle "specialize TSomeGeneric<T>" as method parameter in a generic with the newly added rename symbol
* pdecobj.pas, object_dec & ptype.pas, record_dec: 
    call the procedure to add the rename symbol (the procedure checks whether the mode is correct)
* ppu.pas: 
    increase PPU version so that we don't use non-Delphi mode units with generics, but without the rename symbol
+ added tests:
    the one in webtbs are for classes/objects and those in test are for records

git-svn-id: trunk@21603 -
2012-06-14 07:07:28 +00:00
svenbarth
7dfaec7a05 Fix for Mantis #21457
* pdecsub.pas, parse_proc_dec & pdecobj.pas, constructor_head: 
    correctly set the return type of the constructor of a class helper to the extended def
* psub.pas, generate_bodyentry_block:
    call the NEWINSTANCE of the extended class for constructors of class helpers

git-svn-id: trunk@21582 -
2012-06-12 09:42:22 +00:00
svenbarth
dbc410de63 Allow the usage of a generic's name without type arguments inside of nested classes inside the generic. This fixes Mantis #19499, but also Mantis #18688.
* symtable.pas:
    + add function "get_generic_in_hierarchy_by_name" which returns a def with the name of the symbol in the given object/record hierarchy (useful only in non-Delphi modes)
    + add function "return_specialization_of_generic" which returns the specialization def of a given class inside the given object/record hierarchy
* pexpr.pas, factor, factor_read_id: instead of checking whether the names of the found symbol and the current_structdef are equal, check whether the generic appears in hierarchy of current_structdef
* ptype.pas:
    * id_type: check whether the found symbol is a generic dummy and we are currently parsing a generic then return the correct def of the generic instead of the dummy one
    * single_type: when using the generic type without type parameters the def must resolve to the specialized def when specializing the class instead of the generic def which the dummy symbol points to
    * read_named_type, expr_type: like in "single_type" we need to resolve the use of the parameterless type name to the correct specialization def instead of the generic def
* pdecobj.pas, object_dec: also set the typesym of the current_structdef as otherwise some assumptions about generics with the above mentioned changes aren't valid anymore (like the def the typesym is unset again afterwards)
+ add tests for both bug reports (the one for 19499 is slightly modified so that it does not contain any errors)

git-svn-id: trunk@21361 -
2012-05-22 12:19:11 +00:00
Jonas Maebe
0fd9228deb * extended r21290 to also apply to Java interfaces (they can also contain
constants)

git-svn-id: trunk@21297 -
2012-05-14 21:27:44 +00:00
paul
4312aa4e08 compiler: allow compiler to find real class definition during class members parse to handle references to self constants + test
git-svn-id: trunk@21290 -
2012-05-14 04:50:49 +00:00
svenbarth
7ebbebc877 - removed a duplicated include statement
git-svn-id: trunk@21203 -
2012-05-03 06:24:52 +00:00
Jonas Maebe
6850653296 * replaced "set1<=set2" expression with "(set1*set2)=set1", because the
SPARC code generator of 2.6.0 compiles the former expression wrongly
    (which was fixed in r21095)

git-svn-id: trunk@21109 -
2012-04-28 22:38:14 +00:00
Jonas Maebe
aee5380ae0 * merged trunk up to r20882
o support for the new codepage-aware ansistrings in the jvm branch
   o empty ansistrings are now always represented by a nil pointer rather than
     by an empty string, because an empty string also has a code page which
     can confuse code (although this will make ansistrings harder to use
     in Java code)
   o more string helpers code shared between the general and jvm rtl
   o support for indexbyte/word in the jvm rtl (warning: first parameter
     is an open array rather than an untyped parameter there, so
     indexchar(pcharvar^,10,0) will be equivalent to
     indexchar[pcharvar^],10,0) there, which is different from what is
     intended; changing it to an untyped parameter wouldn't help though)
   o default() support is not yet complete
   o calling fpcres is currently broken due to limitations in
     sysutils.executeprocess() regarding handling unix quoting and
     the compiler using the same command lines for scripts and directly
     calling external programs
   o compiling the Java compiler currently requires adding ALLOW_WARNINGS=1
     to the make command line

git-svn-id: branches/jvmbackend@20887 -
2012-04-15 15:54:10 +00:00
svenbarth
a28a9a9521 * pdecobj.pas, object_dec:
Always define nested types of a generic as generic as well.
* symtable.pas: 
	+ Add a function which decides whether two defs belong to the same generic.
	* Fix sym_is_owned_by as there can be corner cases where childsym becomes Nil.
* ptype.pas:
	* record_dec: Always define nested types of a generic as generic as well.
	* single_type & read_named_type.expr_type:
		Use the newly added function to improve the checks whether a generic 
		symbol should be rejected as "generics not allowed for types of 
		variables or fields".
+ Add a test for which the improved checks are necessary.

git-svn-id: trunk@20189 -
2012-01-28 18:09:40 +00:00
Jonas Maebe
0d5b2b84a8 + Android/JVM target, including a translation of the Android r14 SDK
(= Android 4.0) java headers: java.*, javax.*, org.*, junit.*, android.*).
    The RTL can also be used to target earlier versions of the Android
    platform, but you manually have to take care of not using APIs that
    weren't available yet. Adding separate units for separate platform
    versions would only partly solve the problem, because some of the
    classes used inside the system unit have also changed across
    versions.

    Use -Tandroid while compiling to select the Android OS as target
    platform.

git-svn-id: branches/jvmbackend@19830 -
2011-12-12 02:34:34 +00:00
svenbarth
4419dc3d34 Rebase to revision 19673
pexpr.pas: Changes in postfixoperators and the base of handle_factor_typenode not yet incorporated (the code from trunk was simply commented for now)

git-svn-id: branches/svenbarth/generics@19676 -
2011-11-24 16:48:47 +00:00
svenbarth
461d231daa Rebase to revision 19078 (directly before the merge of cpstrnew)
The changes regarding pretty names for generics and token buffer endianess were integrated into my changes. Not every call to generate_specialization is fixed though, so compilation will fail.

git-svn-id: branches/svenbarth/generics@19674 -
2011-11-24 10:19:57 +00:00
Jonas Maebe
2d7e674168 * fixed error in r19248 whereby the namespace for automatically generated
classes was no longer set afterwards (and the new code is also much
    simpler)

git-svn-id: branches/jvmbackend@19554 -
2011-10-28 21:19:06 +00:00
svenbarth
988c799b0e generate_specialization needs to return the correct generic def if the parent classes are parsed, so that that the usage of generic interfaces is allowed.
This fixes the compilation of test tests\test\tgeneric29.pp and the reminder in pdecobj.pas is not needed anymore.

Note: Perhaps this behavior should be enabled in general if "parse_generic" is true (and not only if parse_parent_class if true as well).

git-svn-id: branches/svenbarth/generics@19426 -
2011-10-09 16:07:22 +00:00
svenbarth
d54b7dd58f Added two reminders for me
git-svn-id: branches/svenbarth/generics@19425 -
2011-10-09 16:06:31 +00:00
florian
df75368d0b --- Merging r19281 into '.':
U    compiler\pdecsub.pas
U    compiler\symdef.pas
U    compiler\pdecobj.pas
U    compiler\htypechk.pas
U    compiler\ncal.pas
U    compiler\symtable.pas
--- Recording mergeinfo for merge of r19281 into '.':
 U   .
--- Merging r19282 into '.':
A    tests\webtbf\tw19975.pp
--- Recording mergeinfo for merge of r19282 into '.':
 G   .

git-svn-id: trunk@19343 -
2011-10-03 20:43:19 +00:00
Jonas Maebe
8a7982fe9e * fixed wrong notes about declaring two destructors after r18427:
oo_has_destructor is inherited from the parent class (because it
    influences whether a VMT is required for TP-style objects),
    so use separate oo_has_new_destructor flag instead

git-svn-id: branches/jvmbackend@18797 -
2011-08-21 09:11:50 +00:00
Jonas Maebe
ad871b6acd * automatically generate versions of inherited virtual class methods that
call through to the parent method in case they are not overridden in
    the child class, because otherwise the dynamic dispatch fails (looking
    up a class method only checks that particular class, since they are
    never virtual in Java and hence not inherited either)

git-svn-id: branches/jvmbackend@18715 -
2011-08-20 08:27:07 +00:00
Jonas Maebe
7d8cbe80f5 + support for virtual class methods on the JVM platform. The JVM does not
support those natively, so they are emulated via the procvar infrastructure
    (and hence not very fast). Could probably be optimized somewhat by adding
    a cache (hashmap of procvars) to the class hierarchies, maybe in the
    future.

git-svn-id: branches/jvmbackend@18704 -
2011-08-20 08:26:11 +00:00
Jonas Maebe
ee75bfaaf4 * change non-virtual instance methods to "virtual; final;" methods on the
JVM target, because that's the only way to guarantee their semantics on
    that platform (see comments in pdecobj)
  * allow starting new inheritance trees (which is the same as adding a new
    non-virtual method as of this revision) on the JVM target in case the
    parameters of the new routine match the old one, but the complete mangled
    name does not (because then the JVM won't consider them to be the same
    either -> Pascal semantics are matched)

git-svn-id: branches/jvmbackend@18695 -
2011-08-20 08:25:24 +00:00
Jonas Maebe
4074bf412b - removed po_java procoption, since it wasn't really used for anything
git-svn-id: branches/jvmbackend@18694 -
2011-08-20 08:25:19 +00:00
Jonas Maebe
979f55e1db + support for procedural variables for the JVM target
o every porocedural variable type is represented by a class with one
     public "invoke" method whose signature matches the signature of the
     procvar
   o internally, dispatching happens via java.lang.reflect.Method.invoke().
     WARNING: while this allows calling private/protected or other methods
     that are normally not accessible from another context, a security
     manger can override this. If such a security manager is installed,
     most procvars will cause security exceptions
   o such dispatching also requires that all arguments are wrapped, but
     that's done in the compiler-generated body of the invoke method,
     so that procvars can also be called conveniently from Java code
   o typecasting between a procedure of object and tmethod is supported,
     as well as Delphi-style replacing of only the method pointer via
     @procvar1=@procvar2.
   o nested procvars are not yet supported, but most of the basic
     infrastructure for them is already present
  * all units/programs now get an internal __FPC_JVM_Module_Class_Alias$
    type when compiled for the JVM target, which is an "external" class
    that maps to the unit name. This is required to look up the
    JLRMethod instances for regular functions/procedures
  + new tabstractprocdef.copyas() method that allows to create a procvar
    from a procdef and vice versa

git-svn-id: branches/jvmbackend@18690 -
2011-08-20 08:24:58 +00:00
Jonas Maebe
37aa2d8443 + full support for sets on the JVM target
o sets of enums are handled as JUEnumSet instances, others as JUBitSet
     derivatives (both smallsets and varsets, to make interoperability with
     Java easier)
   o special handling of set constants: these have to be constructed at run
     time. In case of constants in the code, create an internal constsym to
     represent them. These and regular constsyms are then aliased by an
     another internal staticvarsym that is used to initialise them in the
     unit initialisation code.
   o until they are constructed at run time, set constants are encoded as
     constant Java strings (with the characters containing the set bits)
   o hlcgobj conversion of tcginnode.pass_generate_code() for the genjumps
     part (that's the only part of the generic code that's used by the JVM
     target)
   o as far as explicit typecasting support is concerned, currently the
     following ones are supported (both from/to setdefs): ordinal types,
     enums, any other set types (whose size is the same on native targets)
   o enum setdefs also emit signatures
   o overloading routines for different ordinal set types, or for different
     enum set types, is not supported on the JVM target

git-svn-id: branches/jvmbackend@18662 -
2011-08-20 08:22:22 +00:00
Jonas Maebe
bd9e0b1a45 * ifdefed pjvm usage
git-svn-id: branches/jvmbackend@18640 -
2011-08-20 08:20:28 +00:00
Jonas Maebe
13b0ac91d9 + generate java.lang.Enum descendant classes for Pascal enum types
o these classes get an "enum" flag in the class files
   o these classes get a class field (whose type is that same enum
     class) per enum in the type, which also gets the "enum" flag
   o those class fields are initialised in the class constructor
     with the name of the enum and their order in the declaration
   o if the enum has jumps in FPC (lowest value is not 0, or not
     all values are contiguous), then we add an extra field
     to hold the FPC ordinal value of the enum
   o these classes get a class field valled $VALUES that contains
     a reference to the aforementioned class fields in order of
     declaration (= ordinal->instance mapping, JDK-mandated)
   o apart from the JDK-mandated instance methods (values, valueOf),
     also add FPCOrdinal (returns FPC ordinal value; same as order
     of declaration in case of no jumps) instance method and FPCValueOf
     (returns enum corresponding to FPC ordinal value) static class
     method
   o the mapping between FPC ordinals and enum instances in case of
     jumps is stored in a hashmap whose size is the next prime number
     greater or equal than the number of enum elements
   o moved several extra JDK types to the system unit for the enum
     support, and for future boxing and Java set support
   o several new synthetic method identifiers to generate the enum class
     methods/constructor/class constructor
   o enums with jumps are ordered by FPC ordinal value in the JVM
     $VALUES array so that the java.lang.Enum.doCompare() method
     will properly compare them

git-svn-id: branches/jvmbackend@18616 -
2011-08-20 08:15:28 +00:00