svenbarth 963a4d7b23 Commit of a completely restructured helper implementation. Instead of changing objectdefs with odt_classhelper to odt_class, they'll have the odt_helper type assigned to and this will be kept. This also implies that the parent of a helper is its true parent while the extended type is set to a field in tobjectdef (extendeddef). ... This change became necessary of the following reasons: - Records don't support inheritance, thus for "record helpers" some creativity would have been necessary to implement them; with the new implementation this is more easily - the new approach allows for easy checks regarding virtual methods and their overrides which would have been more complicated in the old variant - if someone feels the need the types of helpers (object, interface) can be added rather easily - unnecessary things like VMT generation can be disabled now details: - msg*: * moved some messages from parser to type * adjusted a message ("class helper" => "helper") - symdef.pas: * renamed "helperparent" to "extendeddef" and changed its type from "tobjectdef" to "tabstractrecorddef", so records can be extended as well (somewhen in the near future) * removed "finish_class_helper" method as it isn't necessary (luckily I haven't yet adjusted the ObjC variant) * changed name of "is_objectpascal_classhelper" to "is_objectpascal_helper" to reflect that this function applies to all helper types * tobjectdef.create: ImplementedInterfaces isn't created for odt_helper anymore * tobjectdef.alignment: for helpers it's the same as for classes although this shouldn't be used anywhere... * tobjectdef.vmtmethodoffset: set to 0 for helpers to be sure... * tobjectdef.needs_inittable: not needed for helpers (no fields allowed) * is_objectpascal_helper: only needs check for "odt_helper" object type - symconst.pas: * changed odt_classhelper to more general odt_helper * added new type "thelpertype" which is used to check that "(record|class) helper" corresponds with the given extended type (as Delphi XE checks this as well this strict solution can be kept for modes Delphi and ObjFPC) - symtable.pas: * extended "searchsym_in_class" with the possibility to disable the search for helper methods (needed for inherited) => this implies changing all occurences of "searchsym_in_class" with a "true" except some special locations * renamed "search_objectpascal_classhelper" to "search_objectpascal_helper" * searchsym_in_class: ** when an extended method is defined with "overload" it can be that a same named method of the extended class might be called (sadly this means that this search was unnecessary...) ** contextclassh is the def of the helper in the case of an inherited call inside the helper's implementation ** when methods inside a helper are searched, it must be searched in the extended type first - ptype.pas: * single_type is used to parse the parent of a helper as well, so allow a helper if the stoParseClassParent is given (needs check in pdecobj.pas/parse_class_parents for normal classes) * read_named_type: currently the only case when something <> ht_none is passed to the modified parse_objdec (see below) is when the combination "class helper" is encountered ("record helper" will be another one) - pinline.pas: adjustment for extended "searchsym_in_class" - pexpr.pas: * adjustments regarding "searchsym_in_class" and "is_objectpascal_helper" * factor/factor_read_id: moved the check for "TSomeClassType.SomeMethod" outside of the "is_class" check * factor: ** in case of an inherited we need to search inside the extended type first (Note: this needs to be extended to find methods in the helper parent if no method is found in the extended type) ** we also need to disable the search for helper methods when searching for an inherited method (Note: it might be better to introduce a enum to decide whether a helper method should search before or after the methods of the extended type or even never) - pdecsub.pas: * insert_self_and_vmt_para: in a helper the type of Self is of the extended type * pd_abstract, pd_final: more nice error message * pd_override, pd_message, pd_reintroduce: adjusted checks because now "is_class" is no longer true for helpers * proc_direcdata: allowed "abstract" for helpers (only to produce a more nice error message) * parse_proc_direc: adjustment because of "is_objectpascal_helper" - pdecobj.pas: * adjustments regarding "is_objectpascal_helper" * adjusted object_dec to take the type of the helper (class, record) as a parameter to be able to check whether the correct extended type was given * struct_property_dec: properties are allowed in helpers * parse_object_options: nothing to be parsed for helpers (at least I hope so ^^) * parse_parent_classes: ** the parent of a helper is now parsed as a normal parent, the extended type is parsed in an extra procedure ** check for "sealed" no longer needed ** added check that the parsed parent of a helper is indeed a helper ** allow to parse the closing ")" of the helper's parent * parse_extended_class: ** new procedure that parses the type which is extended ** it checks that the extended type is a class for "class helper" and a record for "record helper" ** it checks that a helper extends the same class or a subclass for class helpers ** it checks that a helper extends the same record for record helpers * parse_object_members: ** "type", "const", "var" is allowed in helpers ** don't exclude flags regarding virtual methods, they are needed for the checks in mode Delphi (this implies that VMT loading must be disabled for helpers) * object_dec: ** don't change "odt_helper" to "odt_class", but still include the "oo_is_classhelper" flag ** allow the parsing of object options (there are none) ** parse the extended type for helpers - pdecl.pas * adjustment because of extension of object_dec * types_dec: remove the call to finish_classhelper - objcdef.pas * objcaddencodedtype, objcdochecktype: add references to helpers as implicit pointers although that should not be used in any way... - nld.pas * tloadnode.pass_typecheck: self is a reference to the extended type - nflw.pas * create_for_in_loop: adjustment because of changed procedure and inheritance type - ncgrtti.pas * TRTTIWriter.write_rtti_data: disable for helpers for now (I need to check what Delphi does here) - ncgld.pas * tcgloadnode.pass_generate_code: virtual methods of helpers are treated as normal methods - ncgcal.pas * tcgcallnode.pass_generate_code: virtual methods of helpers are treated as normal methods - ncal.pas * tcallnode.pass_typecheck: adjust for extension of tcallcandidates constructor - htypechk.pas * tcallcandidates declaration: extend some methods to (dis)allow the search for helper methods (needed for inherited) * tcallcandidates.collect_overloads_in_struct: ** search first in helpers for methods and stop if none carries the "overload" flag ** move the addition of the procsyms to an extra nested procedure because it's used for helper methods and normal struct methods git-svn-id: branches/svenbarth/classhelpers@16947 -		2011-02-20 11:41:55 +00:00
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errorct.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errord.msg	compiler: don't allow generic object types (interfaces,dispinterfaces,objclasses,...) to have type,var,const sections if regular object types don't have them. currently only objects, classes and records are allowed to have nested type,var,const sections.	2010-12-31 02:31:51 +00:00
errorda.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errordu.msg	compiler: don't allow generic object types (interfaces,dispinterfaces,objclasses,...) to have type,var,const sections if regular object types don't have them. currently only objects, classes and records are allowed to have nested type,var,const sections.	2010-12-31 02:31:51 +00:00
errore.msg	Commit of a completely restructured helper implementation. Instead of changing objectdefs with odt_classhelper to odt_class, they'll have the odt_helper type assigned to and this will be kept. This also implies that the parent of a helper is its true parent while the extended type is set to a field in tobjectdef (extendeddef).	2011-02-20 11:41:55 +00:00
errores.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorf.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorfi.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorhe.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorheu.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorid.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorn.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorpl.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorpli.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorpt.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorptu.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorr.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorru.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00
errorues.msg	compiler: rename parser_e_constructors_always_objects message to parser_e_only_methods_allowed and extended the meaning it has, don't allow class constructors to be declared outside the class/record + test	2010-12-24 06:41:41 +00:00