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20b1e3af78
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r19731 | svenbarth | 2011-12-03 11:53:02 +0100 (Sa, 03 Dez 2011) | 2 lines
pexpr.pas, post_comp_expr_gendef:
This is not the result you are looking for: The result of "postfixoperators" is only set to true if either "again" was "true" once or the node was changed to an errornode. So using the result for deciding whether we overwrite the def or not is incorrect. So just call "postfixoperators" and process the returned node accordingly.
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r19723 | svenbarth | 2011-12-02 15:28:23 +0100 (Fr, 02 Dez 2011) | 1 line
Added a few more tests. All except tgeneric65.pp (object inside generic record) and tgeneric68.pp (object inside generic object) are successfully compiled.
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r19722 | svenbarth | 2011-12-02 15:12:42 +0100 (Fr, 02 Dez 2011) | 1 line
Fix a remaining artefact from the overloaded symbols approach (just a comment, but nevertheless a change...)
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r19721 | svenbarth | 2011-12-02 15:11:56 +0100 (Fr, 02 Dez 2011) | 3 lines
ptype.pas, read_named_type, expr_type:
* Adjust a comment.
* Add an additional check for the owning symtable of the dummy symbol and the current_structdef just to be on the save side (it's not needed inside specializations)
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r19720 | svenbarth | 2011-12-02 15:11:06 +0100 (Fr, 02 Dez 2011) | 1 line
Fix the test. It's mode Delphi, but does not compile in Delphi, because "TSomeRecord" and "TSomeRecord<T>" are different identifiers.
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r19719 | svenbarth | 2011-12-02 15:10:06 +0100 (Fr, 02 Dez 2011) | 18 lines
Fix introduced regressions.
pgenutil.pas, generate_specialization:
* If we are parsing the result type of a function or operator that belongs to a generic (parse_generic is true) we need to accept also "_LT" and "_GT" as for this the "block_type" is NOT set to one of "bt_type", "bt_var_type", "bt_const_type" and only there "_LSHARPBRACKET" and "_RSHARPBRACKET" are returned by the scanner. This is part of the fix for webtbs\tw18567.pp.
* In non—Delphi modes if we encounter a specialization of the currently parsed class/record (using "specialization"!) the given "tt" will be an errordef (because the def of the generic's symbol was not yet set to "current_structdef"). To solve this we check in this case whether the calculated generic name is equal to that of the "current_structdef" and simply return that as specialized def. This fixes test\tgeneric11.pp.
* When searching for the generic symbol search if the generic belongs to a class or record then we need to search for it in the class or record. This fixes webtbs\tw16090.pp.
ptype.pas
* parse_nested_types: We now return the generic defs for specializations inside generics instead of an undefined def, so we must also parse nested type usages correctly, so that type checks don't fail (undefined defs circumvent them mostly). This fixes webtbs\tw10247.pp.
* single_type: We need to allow _LT as an indication for a Delphi specialization as return types are parsed with block_type not in "bt_type", "bt_var_type", "bt_const_type". This is also a fix a part of the fix for webtbs\tw18567.pp.
* read_named_type, expr_type:
Fixes for test\tgeneric17.pp and test\tgeneric22.pp:
(a) In non-Delphi modes we might encounter usages of the generic dummy symbol inside the generic class belonging to it. This is basically a specialization, but as the reference from the dummy symbol to the "current_structdef" is not yet established (this is done after "read_named_type" in "types_dec" returns) we need to use other ways to check for the valid use of the dummy symbol (basically we check whether the name of the dummy symbol and the name of the current_structdef without the type count match)
(b) For specializations we can check whether the genericdef of the currently parsed structdef (the specialization) is the same as the typedef of the encountered dummy symbol.
pexpr.pas, factor, factor_read_id:
Fixes for test\tgeneric17.pp and test\tgeneric22.pp:
To allow the mentioned fixes in ptype for the same tests to be usable at all we must not return an "identifier not found" error if we encounter such a valid use of a generic dummy symbol.
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r19718 | svenbarth | 2011-12-02 15:08:46 +0100 (Fr, 02 Dez 2011) | 3 lines
generate_specialization:
* Remove some unused variables
* Fix a comment
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r19685 | svenbarth | 2011-11-25 16:25:10 +0100 (Fr, 25 Nov 2011) | 1 line
Incorporate the changes from trunk into "postfixoperators" and "handle_factor_typenode". The latter needed to be extended by a parameter "typeonly" which is "false" in almost all calls except the one inside "factor_read_id" where the "typeonly" parameter of "factor" is used.
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r19676 | svenbarth | 2011-11-24 17:48:47 +0100 (Do, 24 Nov 2011) | 4 lines
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)
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r19675 | svenbarth | 2011-11-24 15:42:42 +0100 (Do, 24 Nov 2011) | 11 lines
Somehow the changes regarding tf_methods_specialized weren't commited, thus here they are again:
* symconst.pas: remove tf_methods_specialized
* psub.pas: remove check for/inclusion of tf_methods_specialized as this isn't needed anymore since the generic is specialized in a temporary symtable
pgenutil.pas: remove merge artifacts
pdecl.pas: fix compilation ("s" was duplicate)
pexpr.pas:
* fix calling of generate_specialization
* disable the goto in sub_expr for now; this will be enabled again once right hand sides work as well
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r19674 | svenbarth | 2011-11-24 11:19:57 +0100 (Do, 24 Nov 2011) | 3 lines
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.
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r19671 | svenbarth | 2011-11-23 18:25:09 +0100 (Mi, 23 Nov 2011) | 79 lines
Merge branch 'unique-syms'
Conflicts:
compiler/pdecl.pas
compiler/pexpr.pas
compiler/pgenutil.pas
compiler/ptype.pas
The original log messages as git was a bit forgetting here :( (newest at the top):
?commit 7ef252de8023494ee6d39910e289f9e31658d47b
Author: Sven Barth <pascaldragon@minerva>
Date: Mon Nov 21 17:13:36 2011 +0100
Fix the compilation of inline specializations of which the generic is derived from another generic.
pgenutil.pas, generate_specialization:
* Set the "block_type" to "bt_type" when parsing the type parameters, so that the nodes are returned as "ttypenode" instead of e.g. "tloadvmtaddrnode" in case of classes outside of type sections.
* Set the "block_type" to "bt_type" before calling "read_name_type", so that no unexpected sideeffects happen, because types like classes normally only are declared inside type sections (e.g. for the case a generic class is derived from another generic class a classrefdef for the specialized parent class will be created inside the derived specialized class if the block type is not a type one).
commit 1041a8f7a3a41f4fdf2975ce40055c698281ce71
Author: Sven Barth <pascaldragon@minerva>
Date: Fri Nov 18 19:03:50 2011 +0100
Improve inline specializations a bit, so now expressions like "TSomeGeneric<TSomeType>.SomeClassProc OP SomeNonGeneric" is possible. Using another class function of a generic as the right side is not yet working (that still needs some thinking).
To achive this the generalization code must basically continue directly after the "factor" call, so that the operator and the right side are correctly parsed when walking up the call stack. This is done by jumping from the end of the specialization code in the "<"-case to the start of "sub_expr". The freshly generated node (in the above example a callnode) will be passed down the callstack through a new parameter "factornode". If that is set (currently only in the case of a specialization on the left side) "factor" won't be called and the right side will be parsed with the "factornode" as the left side. If it is not set (which is the case for all other calls to "sub_expr" in the unit) then the usual call to "factor" will be done and the result will be used as the left side.
commit a01ccd265f8d6cc5a2f3e88e23afbcd3d5960afb
Author: Sven Barth <pascaldragon@minerva>
Date: Fri Nov 18 18:37:04 2011 +0100
Fix compilation of ppudump.
symconst.pas:
* Remove sto_has_generic, which was the last remainer of my "overloaded type symbols" approach.
* Remove df_methods_specialized, as it isn't needed anymore with the recent "temporary symtable" solution.
psub.pas, specialize_objectdefs, process_abstractrecorddef:
Remove the checks for/inclusion of df_methods_specialized.
utils/ppudump.pp:
Add "sp_generic_dummy" to the symbol options.
commit d16deac060e65d4b53e8fe9c27fe7e1f6d00a416
Author: Sven Barth <pascaldragon@minerva>
Date: Wed Nov 16 16:34:51 2011 +0100
Fix compilation of "gset.pp" from fcl-stl.
nld.pas:
Extend ttypenode by a reference to the type symbol. Normally this is simply the typesym of the given def, but for specializations in type sections of generics this is not the case, because generate_specialization will return a reference to the generic definition and not the new one (thus the symbol will be wrong).
ppu.pas:
Increase PPU version because of the extension of ttypenode.
pexpr.pas:
* handle_factor_typenode: Extend the function by a "sym" parameter which will normally be "nil". In that case it is set to the def's typesym. The "typesym" field of the created type node is then set to this sym.
* For now pass nearly always "nil" for the above mentioned sym except inside factor_read_id when we've encountered a typesym.
ptype.pas, read_named_type, expr_type:
Exchange the "is_owned_by" check with a "sym_is_owned_by" check so that we can correctly detect that we are using a specialized type declaration inside a generic (once nested generic are allowed this condition needs to be checked).
commit 23668d2fc9070afc26b4288ed0db9a8eaf6f40e6
Author: Sven Barth <pascaldragon@minerva>
Date: Wed Nov 16 07:51:12 2011 +0100
psub.pas:
* tcgprocinfo.parse_body: Methods of generic classes need to set "parse_generic" as well, so that variables for "stacked generics" (generic array => generic record) inside the method body are handled correctly.
* specialize_objectdefs: Don't try to generate method bodies for abstract methods.
pdecvar.pas, read_property_dec:
Allow specializations for the return types of properties (should they be allowed for index types as well?).
symtable.pas:
Add a new class "tspecializesymtable" which is basically a globalsymtable but is always assuming to be the current unit. This symtable is used in "generate_specializations" (see below) and is needed to allow visibilty checks for "private", etc. to succeed.
pgenutil.pas, generate_specializations:
Instead of hackily pushing a symtable that may contain conflicting symbols onto the symtable stack for the specialization, a temporary global symtable using the above mentioned "tspecializesymtable" is created and pushed. After the specialization is done all symbols and defs that were added to the temporary symtable are moved to their final symtable (either the global- or localsymtable of the unit, depending on the current position of compilation). This way symbols are correctly added to a top level symtable, but without potential side effects like resolving the wrong symbol.
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r19435 | svenbarth | 2011-10-09 18:16:19 +0200 (So, 09 Okt 2011) | 1 line
Set "current_structdef", "current_genericdef" and "current_specializedef" to values that were valid during the declaration of the generic when specializing it ("current_genericdef" and "current_specializedef" might need to still be corrected though)
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r19434 | svenbarth | 2011-10-09 18:15:26 +0200 (So, 09 Okt 2011) | 2 lines
Arrays and procvars inside a generic declaration are not declared as generic/specialization anymore (this partly reverts a previous commit). This reduces the problematic cases in the check whether a found def was specialized inside the class (the changed check in read_named_type.expr_type).
It's still not an ideal solution as the usage of generic classes/records (without specialization!) that are declared inside the current parsed class/record will compromise this check again.
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r19433 | svenbarth | 2011-10-09 18:14:33 +0200 (So, 09 Okt 2011) | 1 line
Extend the test with a usage of "TTestInteger" and correct the comments a bit.
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r19432 | svenbarth | 2011-10-09 18:13:30 +0200 (So, 09 Okt 2011) | 9 lines
We need to flag specializations of record-/objectdef once we have generated their methods otherwise an interesting situation might occur:
The classes in "fgl.pas" implement an enumerator in the generic class "TFPGListEnumerator" and "specialize" that inside themselves. If we now specialize one of the generic classes (e.g. "TFPGList") the "TFPGListEnumerator" is really specialized as well. That means a def is added to the global symtable (the local one in case of a program or library file). If we now use the enumerator class in the same file (e.g. by using a "for ... in", which has a temporary variable of that type) then the methods of the enumerator are specialized again (the def itself is not). To avoid this (and time consuming searches for existing method specializations) we flag the specialized def as "done" once we're finished.
symconst.pas
* add a new flag "df_methods_specialized" to the "tdefoption" enumeration
psub.pas, process_abstractrecorddef
* check the def for the "df_methods_specialized" flag and continue only if that is not set
* set the "df_methods_specialized" flag before leaving the function
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r19431 | svenbarth | 2011-10-09 18:12:25 +0200 (So, 09 Okt 2011) | 1 line
This check was commited by accident; it was a remain from an experimental solution to the "fix compilation of fgl"-problem.
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r19430 | svenbarth | 2011-10-09 18:11:31 +0200 (So, 09 Okt 2011) | 19 lines
Fix compilation of unit "fgl.pp" and of test "tests/test/tgeneric29.pp".
symtable.pas:
* reduce the "childdef" parameter of "is_owned_by" from "tabstractrecorddef" to "tdef", so that more primitive defs can be checked as well
* add a new function "sym_is_owned_by" which is similar to "is_owned_by", but takes a symbol and a symtable as parameter; the owner chain of the symtable is checked until a non-object- and non-record-symtable is reached
ptype.pas:
* extend "id_type", so that the symbol and the symtable that belongs to the returned def is returned as well
* this is needed to check inside "single_type" whether a def that is a generic was specialized inside another generic, because in that case the genericdef is returned by "generate_specialization" and not a new specialized def, but the corresponding type symbol (which is different from "hdef.typesym") belongs to the class itself; I need to admit that this solution isn't very clean and one could try to circumvent some of the checks, so I need to find a better detection for such a case (concrete example: the enumerator specialization inside the classes of "fgl.pas")
* in "read_named_type.expr_type" the check for "df_generic" is extended analogous to the previous change, but instead of relying on the symbol it uses the def. This is needed so that types like method pointers that are defined inside the current generic are not disallowed as they contain the "df_generic" flag as well; like the previous change this change isn't clean either and maybe it's better to remove the inclusion of the "df_generic" flag from everything except records and "objects" inside records/"objects" again. Such a solution will "only" reduce the problem to records and "objects" though...
pgenutil.pas:
* only add a new undefined def if we're not parsing the parent class or interfaces ("parse_class_parent" is true), otherwise the InternalError regarding the "equal count of defs" will trigger
* there are now two cases where we need to return a generic def instead of a undefined one when we're parsing a generic:
a) we have the previously mentioned case that "parse_class_parent" is true
b) an undefined def was added, but we need to return a generic def, so that checks can be passed
* use the correct variable when building the generic name, otherwise we get errors like "identifier '$1' not found"
* don't push the symtable if we're currently parsing the list of interfaces or the parent class, because then e.g. a generic interface will be included in the symtable of the implementing class which isn't what we want; the current solution is not clean though, so this needs to be investigated more
* Note: In the current state of "generate_specialization" the function could be simplyfied a bit more; this will be done when the implementation is satisfactory enough
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r19429 | svenbarth | 2011-10-09 18:10:28 +0200 (So, 09 Okt 2011) | 20 lines
Allow generics to be overloaded by variables.
* symconst.pas:
add an entry for the generic dummy symbol to the symbol options enumeration
* pgenutil.pas:
- extend "generate_specialization" by the possibility to pass a symbol name instead of a def
- if "symname" is given that is used; otherwise "genericdef" or "tt" is used
* pexpr.pas:
- in case of "<" we are trying to receive a generic dummy symbol from the left node (new function "getgenericsym")
- it's name is then passed to "generate_specialization" which in turn fills genericdef
- adjust call to "generate_specialization"
* pdecl.pas:
- we can now check for "sp_generic_dummy instead of "not sp_generic_para" to check whether we've found the dummy symbol of a previous generic declaration
- if a new dummy symbol is created we need to include "sp_generic_dummy"
- if we've found a non-generic symbol with the same name we need to include the "sp_generic_dummy" flag as well
* symtable.pas
- add a new function "searchsym_with_symoption" that more or less works the same as "searchsym", but only returns successfully if the found symbol contains the given flag
- "searchsym_with_symoption" and "searchsym" are based on the same function "maybe_searchsym_with_symoption" which is the extended implementation of "searchsym" (note: object symtables are not yet searched if a symoption is to be looked for)
- add a function "handle_generic_dummysym" which can be used to hide the undefineddef symbol in a symtable
- correctly handle generic dummy symbols in case of variables in "tstaticsymtable.checkduplicate"
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r19428 | svenbarth | 2011-10-09 18:09:09 +0200 (So, 09 Okt 2011) | 3 lines
types_dec:
- fix a comment
- the created undefineddef must not be freed, as the count of the list the def is contained in, is used to find other defs again
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r19427 | svenbarth | 2011-10-09 18:08:15 +0200 (So, 09 Okt 2011) | 14 lines
Corrected the handling of hint directives.
pgenutils.pas/generate_specialization:
- parse hint directives of the generic if they are recorded
- output hint messages of the generic after the ">" is successfully parsed
pexpr.pas:
- factor: don't display hints of a potential generic type if the next token is a "<"
- sub_expr:
* added two inline methods which
a) checks whether a node is a typenode or a loadvmtaddrnode with a typenode
b) returns the typedef of such a node
* check hint directives for the first parsed type argument of a specialization
* in the case of parsing a non-generic type the hints of the left and right node of the resulting "<" node need to be checked (the right ones only if another "<" is following)
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r19426 | svenbarth | 2011-10-09 18:07:22 +0200 (So, 09 Okt 2011) | 5 lines
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).
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r19425 | svenbarth | 2011-10-09 18:06:31 +0200 (So, 09 Okt 2011) | 1 line
Added two reminders for me
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r19424 | svenbarth | 2011-10-09 18:05:31 +0200 (So, 09 Okt 2011) | 32 lines
Switching from overloaded type symbol to unique symbol per generic.
Reasons for the "unique symbol" approach:
- no special search operations for cross unit search needed (which is supported by Delphi) => less performance impact
- no special care needed to really find the correct generic => less increase of parser complexity
Currently all generic tests except tgeneric29.pp compile and inline specializations work as well.
The changes in detail:
* pdecl.pas/types_dec:
- The variables used to hold the final name of the symbol are now prefixed with "gen". In case of non-generics the prefixed ones are equal to the non-prefixed ones (e.g. orgtypename=genorgtypename). In case of a generic symbol the "gen"-variants contain the type parameter count suffix (e.g. '$1' in case of 'TTest<T>') as well.
- The unmodified pattern is used to insert and detect a dummy symbol with that name, so that type declarations and - more important - inline specializations can find that symbol.
- In non-Delphi modes this symbol is also used to detect whether we have a type redefinition which is not allowed currently; its typedef points to the generic def.
- In mode Delphi the def of that dummy symbol (which contains an undefineddef) is modified when a corresponding non-generic type is parsed, so that it contains the def of the real type.
* pdecsub.pas/parse_proc_head
- consume_generic_type_parameter now only parses the type parameters and picks the generic with the correct amount of parameters. The verification of the order and names of the parameters needs to be added again.
- it also does not use "def" anymore, but it sets "srsym"
- in parse_proc_head the symbol (srsym) is only searched if the symbol isn't assigned already; in case of a generic in mode FPC it will find the dummy symbol that points to the generic def
* pexpr.pas
- in factor_read_id there are three cases to handle:
+ the symbol is not assigned => error
+ a possible generic symbol (either an undefined def or the non-generic variant) => no error and no hints
+ a non-generic symbol => hints
Point 1 is handled correctly, point 2 and 3 aren't currently and also they might be needed to be moved somewhere else
- sub_expr:
+ a node can be a tloadvmtaddrnode as well if the non-generic variant of a generic symbol is a class
+ we can only check afterwards whether the specialization was successful
* pgenutil.pas/generate_specialization
using the count of the parsed types the correct symbol can be found easily
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r18005 | svenbarth | 2011-07-16 18:19:33 +0200 (Sa, 16 Jul 2011) | 1 line
Rebase to revision 18000
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r18004 | svenbarth | 2011-07-16 16:13:56 +0200 (Sa, 16 Jul 2011) | 1 line
pexpr.pas, sub_expr: Added support for "as" and "is" operators if the right hand side is an inline specialization (currently detected by the next token being a "<"). This could potentially introduce some problems if the right hand side isn't a specialization but a "<" comparison together with some overloaded operators (I still need to find a case for such a problem)...
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r18003 | svenbarth | 2011-07-16 16:13:11 +0200 (Sa, 16 Jul 2011) | 5 lines
factor_read_id:
don't accept the generic dummy symbol if the next token isn't a "<"
sub_expr:
generate an error if we had a normal "<" comparison containing the dummy symbol on the left side instead of a specialization
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r18002 | svenbarth | 2011-07-16 16:12:25 +0200 (Sa, 16 Jul 2011) | 17 lines
Implement support for nested non-generic types inside generic types. This is mostly for records, classes and objects ("structures") as those didn't work at all, but the others (arrays, procvars) weren't done cleanly either.
pobjdec.pas (object_dec) / ptype.pas (record_dec, array_dec, procvar_dec):
- enable "parse_generic" if a nested type is parsed and we're already inside a generic (this prevents code to be generated for the nested type's methods)
- set the "df_specialization" flag so that the code for generating the methods (and thus resolving the forwards declarations) is called for this symbol
pexpr.pas:
add "post_comp_expr_gendef" which basically calls "handle_factor_typenode" and "postfixoperators" as those aren't exported from the unit themselves
ptype.pas, read_named_type.expr_type:
- use "post_comp_expr_gendef" to parse the use of nested types (e.g. "var t: TTest<T>.TTestSub")
psub.pas, specialize_objectdefs:
implement the generation of the method bodies for nested structures (resolves the forward declarations)
pdecl.pas, types_dec:
when we encounter a nested structure inside a specialization of a structure, we need to find the corresponding generic definition so that the generic can be correctly parsed later on.
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r18001 | svenbarth | 2011-07-16 16:11:31 +0200 (Sa, 16 Jul 2011) | 1 line
Finally fixed the handling of hint directives and added a comment explaining the situation in the context of generics.
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r17999 | svenbarth | 2011-07-16 16:10:34 +0200 (Sa, 16 Jul 2011) | 2 lines
* Reordered the conditions for the inline spezialization as the "isgeneric" boolean is not needed
* As "handle_factor_typenode" is now available the classrefdef wrapper is not needed anymore
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r17998 | svenbarth | 2011-07-16 16:09:38 +0200 (Sa, 16 Jul 2011) | 1 line
Removed the remaining traces of the type overloads and increased PPU version to differ from trunk.
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r17997 | svenbarth | 2011-07-16 16:08:49 +0200 (Sa, 16 Jul 2011) | 1 line
Integrated the changes from trunks's postfixoperators into my own and removed the local version again.
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r17996 | svenbarth | 2011-07-16 16:08:03 +0200 (Sa, 16 Jul 2011) | 5 lines
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).
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r17995 | svenbarth | 2011-07-16 16:07:20 +0200 (Sa, 16 Jul 2011) | 1 line
Added two reminders for me
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r17547 | svenbarth | 2011-05-23 22:52:51 +0200 (Mo, 23 Mai 2011) | 1 line
Rebase to revision 17533
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r17542 | svenbarth | 2011-05-23 21:47:09 +0200 (Mo, 23 Mai 2011) | 4 lines
Added some tests for:
- multiple symbols with a similar name
- hint directives
- inline specializations
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r17541 | svenbarth | 2011-05-23 21:19:12 +0200 (Mo, 23 Mai 2011) | 3 lines
Allow typecasts to inline specializations as well.
For this the code which handles this inside factor_read_id had to be moved to local unit scope and is named handle_factor_typenode.
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r17540 | svenbarth | 2011-05-23 21:17:53 +0200 (Mo, 23 Mai 2011) | 1 line
Remove the (now) non-functional check for inline specialization.
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r17539 | svenbarth | 2011-05-23 21:16:39 +0200 (Mo, 23 Mai 2011) | 14 lines
Corrected the handling of hint directives.
pgenutils.pas/generate_specialization:
- parse hint directives of the generic if they are recorded
- output hint messages of the generic after the ">" is successfully parsed
pexpr.pas:
- factor: don't display hints of a potential generic type if the next token is a "<"
- sub_expr:
* added two inline methods which
a) checks whether a node is a typenode or a loadvmtaddrnode with a typenode
b) returns the typedef of such a node
* check hint directives for the first parsed type argument of a specialization
* in the case of parsing a non-generic type the hints of the left and right node of the resulting "<" node need to be checked (the right ones only if another "<" is following)
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r17538 | svenbarth | 2011-05-23 21:15:36 +0200 (Mo, 23 Mai 2011) | 5 lines
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).
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r17537 | svenbarth | 2011-05-23 21:14:33 +0200 (Mo, 23 Mai 2011) | 1 line
Added two reminders for me
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r17536 | svenbarth | 2011-05-23 21:13:51 +0200 (Mo, 23 Mai 2011) | 1 line
This test does not need to be run
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r17535 | svenbarth | 2011-05-23 21:12:50 +0200 (Mo, 23 Mai 2011) | 32 lines
Switching from overloaded type symbol to unique symbol per generic.
Reasons for the "unique symbol" approach:
- no special search operations for cross unit search needed (which is supported by Delphi) => less performance impact
- no special care needed to really find the correct generic => less increase of parser complexity
Currently all generic tests except tgeneric29.pp compile and inline specializations work as well.
The changes in detail:
* pdecl.pas/types_dec:
- The variables used to hold the final name of the symbol are now prefixed with "gen". In case of non-generics the prefixed ones are equal to the non-prefixed ones (e.g. orgtypename=genorgtypename). In case of a generic symbol the "gen"-variants contain the type parameter count suffix (e.g. '$1' in case of 'TTest<T>') as well.
- The unmodified pattern is used to insert and detect a dummy symbol with that name, so that type declarations and - more important - inline specializations can find that symbol.
- In non-Delphi modes this symbol is also used to detect whether we have a type redefinition which is not allowed currently; its typedef points to the generic def.
- In mode Delphi the def of that dummy symbol (which contains an undefineddef) is modified when a corresponding non-generic type is parsed, so that it contains the def of the real type.
* pdecsub.pas/parse_proc_head
- consume_generic_type_parameter now only parses the type parameters and picks the generic with the correct amount of parameters. The verification of the order and names of the parameters needs to be added again.
- it also does not use "def" anymore, but it sets "srsym"
- in parse_proc_head the symbol (srsym) is only searched if the symbol isn't assigned already; in case of a generic in mode FPC it will find the dummy symbol that points to the generic def
* pexpr.pas
- in factor_read_id there are three cases to handle:
+ the symbol is not assigned => error
+ a possible generic symbol (either an undefined def or the non-generic variant) => no error and no hints
+ a non-generic symbol => hints
Point 1 is handled correctly, point 2 and 3 aren't currently and also they might be needed to be moved somewhere else
- sub_expr:
+ a node can be a tloadvmtaddrnode as well if the non-generic variant of a generic symbol is a class
+ we can only check afterwards whether the specialization was successful
* pgenutil.pas/generate_specialization
using the count of the parsed types the correct symbol can be found easily
------------------------------------------------------------------------
r17534 | svenbarth | 2011-05-23 21:11:50 +0200 (Mo, 23 Mai 2011) | 1 line
This fixes an access violation when compiling tests\test\tgeneric30.pp
------------------------------------------------------------------------
r17405 | svenbarth | 2011-05-04 12:43:13 +0200 (Mi, 04 Mai 2011) | 11 lines
*pexpr.pas:
- moved "postfixoperators" from local declaration of "factor" to implementation declarations of the unit, so it can be used in "sub_expr"
- for this a parameter "getaddr:boolean" needed to be added, because it used the parameter that was defined by "factor"
=> adjustments inside "factor" for calls to "postfixoperators"
- extended the "_LT" ("<") case of "sub_expr" with handling of inline generic specializations. If a potential generic is detected (Delphi mode, left and right node are type nodes, next token is ">" or ",") it is tried to parse the generic declaration and generate a specialization. If this succeeds, potential postfix operators are parsed and a node <> caddnode is returned.
*pgenutil.pas:
"generate_specialization" was extended so that the first type identifer can already have been parsed (which is the case in inline specializations)
*ptype.pas
adjustments because of the extension of "generate_specialization"
------------------------------------------------------------------------
r17404 | svenbarth | 2011-05-04 12:40:07 +0200 (Mi, 04 Mai 2011) | 1 line
Moved "parse_generic_parameters" and "insert_generic_parameter_types" from "pdecl.pas" to "pgenutil.pas"
------------------------------------------------------------------------
r17403 | svenbarth | 2011-05-04 12:35:23 +0200 (Mi, 04 Mai 2011) | 1 line
Moved "generate_specialization" from "ptype.pas" to "pgenutil.pas"
------------------------------------------------------------------------
r17397 | svenbarth | 2011-05-02 22:22:41 +0200 (Mo, 02 Mai 2011) | 3 lines
Added a file which will hold the various functions related to generic parsing. The header copyright notice and the info comment might not yet be final.
Note: I've added this mostly empty, because I used SVN instead of GIT SVN, as I don't know whether it would handle the properties for this new file correctly.
------------------------------------------------------------------------
r17396 | svenbarth | 2011-05-02 21:47:53 +0200 (Mo, 02 Mai 2011) | 6 lines
consume_generic_type_parameter now parses the available parameters first before deciding which generic def is the correct one (this is stored in the "def" variable of the parent frame). The count of the parameters and the order is checked.
parse_proc_head itself uses the correct def (the def found by consume_generic_type_parameter in mode Delphi and the first generic def of the symbol in the other modes) which is available in the "def" variable.
Status of generics:
Non-Delphi generics now work as before and declarations of Delphi generics work as well. Inline specialisations don't work currently.
------------------------------------------------------------------------
r17395 | svenbarth | 2011-05-02 21:46:41 +0200 (Mo, 02 Mai 2011) | 1 line
Added two TODOs for places that I'll need to adjust for inline specializations.
------------------------------------------------------------------------
r17394 | svenbarth | 2011-05-02 21:45:34 +0200 (Mo, 02 Mai 2011) | 12 lines
* ptype.pas:
"generate_specialization" now parses the generic parameters without verifying them. The verification is done after their count is known and thus the correct generic def can be determined.
Note: It does currently only work with the first found symbol, the extended lookup needs to be implemented yet (including the unit name works though)
* pexpr.pas:
In "factor_read_id" an "identifer not found" error is generated if the undefined non-generic def is used (e.g. as a type for a variable)
Note: This check needs to be adjusted for the case "typeonly=false".
Status of generics:
Specializations can now be parsed, but declarations containing methods are still broken, because the correct def is not yet resolved (not even talking about inline specializations yet ;) )
------------------------------------------------------------------------
r17393 | svenbarth | 2011-05-02 21:44:14 +0200 (Mo, 02 Mai 2011) | 9 lines
*type symbol overloads are only allowed in mode Delphi
*a check for overloads with the same count of arguments is not yet in place
*in non-Delphi modes overloads need to be checked for non-generics as well, e.g. "TTest<T>" is already defined and now a "TTest" is declared
*when a generic is encountered and the symbol does not yet exist, a new symbol with an undefineddef is added and the generic def is added as an overload; if the symbol already exists, the generic is just added
*if a non-generic is parsed and the symbol is already defined (but the typedef is still an undefineddef) then the typedef is updated
*the symtable tree (up to the unit symtable (global or local)) gets the "sto_has_generic" flag which will be used when searching generics with the same name, but different parameter counts in different units
State of generics:
broken, because the generic defs are not yet searched/found
------------------------------------------------------------------------
r17392 | svenbarth | 2011-05-02 21:42:40 +0200 (Mo, 02 Mai 2011) | 1 line
Extend ttypesym by a list that will contain all generic "overloads" of this symbol.
------------------------------------------------------------------------
r17341 | svenbarth | 2011-04-18 23:15:52 +0200 (Mo, 18 Apr 2011) | 1 line
Rebase to revision 17340
------------------------------------------------------------------------
r17316 | svenbarth | 2011-04-14 09:11:07 +0200 (Do, 14 Apr 2011) | 1 line
Created a branch for working on various aspects of generics
------------------------------------------------------------------------
git-svn-id: trunk@19763 -
2110 lines
67 KiB
ObjectPascal
2110 lines
67 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Florian Klaempfl, Pierre Muller
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Implementation for the symbols types of the symtable
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit symsym;
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{$i fpcdefs.inc}
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interface
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uses
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{ common }
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cutils,
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{ target }
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globtype,globals,widestr,constexp,
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{ symtable }
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symconst,symbase,symtype,symdef,defcmp,
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{ ppu }
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ppu,finput,
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cclasses,symnot,
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{ aasm }
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aasmbase,
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cpuinfo,cpubase,cgbase,cgutils,parabase
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;
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type
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{ this class is the base for all symbol objects }
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tstoredsym = class(tsym)
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public
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constructor create(st:tsymtyp;const n : string);
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constructor ppuload(st:tsymtyp;ppufile:tcompilerppufile);
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destructor destroy;override;
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procedure ppuwrite(ppufile:tcompilerppufile);virtual;
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end;
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tlabelsym = class(tstoredsym)
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used,
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defined,
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nonlocal : boolean;
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{ points to the matching node, only valid resultdef pass is run and
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the goto<->label relation in the node tree is created, should
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be a tnode }
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code : pointer;
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{ points to the jump buffer }
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jumpbuf : tstoredsym;
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{ when the label is defined in an asm block, this points to the
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generated asmlabel }
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asmblocklabel : tasmlabel;
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constructor create(const n : string);
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constructor ppuload(ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function mangledname:string;override;
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end;
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tunitsym = class(Tstoredsym)
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module : tobject; { tmodule }
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constructor create(const n : string;amodule : tobject);
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constructor ppuload(ppufile:tcompilerppufile);
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destructor destroy;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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tnamespacesym = class(Tstoredsym)
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unitsym:tsym;
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unitsymderef:tderef;
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constructor create(const n : string);
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constructor ppuload(ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure buildderef;override;
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procedure deref;override;
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end;
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terrorsym = class(Tsym)
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constructor create;
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end;
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{ tprocsym }
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tprocsym = class(tstoredsym)
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protected
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FProcdefList : TFPObjectList;
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FProcdefDerefList : TFPList;
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public
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constructor create(const n : string);
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constructor ppuload(ppufile:tcompilerppufile);
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destructor destroy;override;
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{ writes all declarations except the specified one }
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procedure write_parameter_lists(skipdef:tprocdef);
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{ tests, if all procedures definitions are defined and not }
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{ only forward }
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procedure check_forward;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure buildderef;override;
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procedure deref;override;
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function find_procdef_bytype(pt:Tproctypeoption):Tprocdef;
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function find_procdef_bypara(para:TFPObjectList;retdef:tdef;cpoptions:tcompare_paras_options):Tprocdef;
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function find_procdef_byoptions(ops:tprocoptions): Tprocdef;
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function find_procdef_byprocvardef(d:Tprocvardef):Tprocdef;
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function find_procdef_assignment_operator(fromdef,todef:tdef;var besteq:tequaltype):Tprocdef;
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function find_procdef_enumerator_operator(fromdef,todef:tdef;var besteq:tequaltype):Tprocdef;
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property ProcdefList:TFPObjectList read FProcdefList;
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end;
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ttypesym = class(Tstoredsym)
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public
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typedef : tdef;
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typedefderef : tderef;
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fprettyname : ansistring;
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constructor create(const n : string;def:tdef);
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constructor ppuload(ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure buildderef;override;
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procedure deref;override;
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function prettyname : string;override;
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end;
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tabstractvarsym = class(tstoredsym)
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varoptions : tvaroptions;
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notifications : Tlinkedlist;
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varspez : tvarspez; { sets the type of access }
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varregable : tvarregable;
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varstate : tvarstate;
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{ Has the address of this variable potentially escaped the }
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{ block in which is was declared? }
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{ could also be part of tabstractnormalvarsym, but there's }
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{ one byte left here till the next 4 byte alignment }
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addr_taken : boolean;
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constructor create(st:tsymtyp;const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
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constructor ppuload(st:tsymtyp;ppufile:tcompilerppufile);
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destructor destroy;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure buildderef;override;
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procedure deref;override;
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function getsize : asizeint;
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function getpackedbitsize : longint;
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function is_regvar(refpara: boolean):boolean;
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procedure trigger_notifications(what:Tnotification_flag);
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function register_notification(flags:Tnotification_flags;
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callback:Tnotification_callback):cardinal;
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procedure unregister_notification(id:cardinal);
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private
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_vardef : tdef;
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vardefderef : tderef;
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procedure setvardef(def:tdef);
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public
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property vardef: tdef read _vardef write setvardef;
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end;
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tfieldvarsym = class(tabstractvarsym)
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fieldoffset : asizeint; { offset in record/object }
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objcoffsetmangledname: pshortstring; { mangled name of offset, calculated as needed }
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constructor create(const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
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constructor ppuload(ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function mangledname:string;override;
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destructor destroy;override;
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end;
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tabstractnormalvarsym = class(tabstractvarsym)
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defaultconstsym : tsym;
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defaultconstsymderef : tderef;
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localloc : TLocation; { register/reference for local var }
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initialloc : TLocation; { initial location so it can still be initialized later after the location was changed by SSA }
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constructor create(st:tsymtyp;const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
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constructor ppuload(st:tsymtyp;ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure buildderef;override;
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procedure deref;override;
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end;
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tlocalvarsym = class(tabstractnormalvarsym)
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constructor create(const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
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constructor ppuload(ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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tparavarsym = class(tabstractnormalvarsym)
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paraloc : array[tcallercallee] of TCGPara;
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paranr : word; { position of this parameter }
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{ in MacPas mode, "univ" parameters mean that type checking should
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be disabled, except that the size of the passed parameter must
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match the size of the formal parameter }
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univpara : boolean;
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{$ifdef EXTDEBUG}
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eqval : tequaltype;
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{$endif EXTDEBUG}
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constructor create(const n : string;nr:word;vsp:tvarspez;def:tdef;vopts:tvaroptions);
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constructor ppuload(ppufile:tcompilerppufile);
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destructor destroy;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function needs_finalization: boolean;
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end;
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tstaticvarsym = class(tabstractnormalvarsym)
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private
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_mangledname : pshortstring;
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public
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section : ansistring;
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constructor create(const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
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constructor create_dll(const n : string;vsp:tvarspez;def:tdef);
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constructor create_C(const n,mangled : string;vsp:tvarspez;def:tdef);
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constructor ppuload(ppufile:tcompilerppufile);
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destructor destroy;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function mangledname:string;override;
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procedure set_mangledname(const s:string);
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end;
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tabsolutevarsym = class(tabstractvarsym)
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public
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abstyp : absolutetyp;
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{$ifdef i386}
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absseg : boolean;
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{$endif i386}
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asmname : pshortstring;
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addroffset : aword;
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ref : tpropaccesslist;
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constructor create(const n : string;def:tdef);
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constructor create_ref(const n : string;def:tdef;_ref:tpropaccesslist);
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destructor destroy;override;
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constructor ppuload(ppufile:tcompilerppufile);
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procedure buildderef;override;
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procedure deref;override;
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function mangledname : string;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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tpropaccesslisttypes=(palt_none,palt_read,palt_write,palt_stored);
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tpropertysym = class(Tstoredsym)
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propoptions : tpropertyoptions;
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overriddenpropsym : tpropertysym;
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overriddenpropsymderef : tderef;
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propdef : tdef;
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propdefderef : tderef;
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indexdef : tdef;
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indexdefderef : tderef;
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index,
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default : longint;
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dispid : longint;
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propaccesslist: array[tpropaccesslisttypes] of tpropaccesslist;
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parast : tsymtable;
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constructor create(const n : string);
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destructor destroy;override;
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constructor ppuload(ppufile:tcompilerppufile);
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function getsize : asizeint;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure buildderef;override;
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procedure deref;override;
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end;
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tconstvalue = record
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case integer of
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0: (valueord : tconstexprint);
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1: (valueordptr : tconstptruint);
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2: (valueptr : pointer; len : longint);
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end;
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tconstsym = class(tstoredsym)
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constdef : tdef;
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constdefderef : tderef;
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consttyp : tconsttyp;
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value : tconstvalue;
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constructor create_ord(const n : string;t : tconsttyp;v : tconstexprint;def:tdef);
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constructor create_ordptr(const n : string;t : tconsttyp;v : tconstptruint;def:tdef);
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constructor create_ptr(const n : string;t : tconsttyp;v : pointer;def:tdef);
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constructor create_string(const n : string;t : tconsttyp;str:pchar;l:longint);
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constructor create_wstring(const n : string;t : tconsttyp;pw:pcompilerwidestring);
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constructor ppuload(ppufile:tcompilerppufile);
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destructor destroy;override;
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procedure buildderef;override;
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procedure deref;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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tenumsym = class(Tstoredsym)
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value : longint;
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definition : tenumdef;
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definitionderef : tderef;
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constructor create(const n : string;def : tenumdef;v : longint);
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constructor ppuload(ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure buildderef;override;
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procedure deref;override;
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end;
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tsyssym = class(Tstoredsym)
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number : longint;
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constructor create(const n : string;l : longint);
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constructor ppuload(ppufile:tcompilerppufile);
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destructor destroy;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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const
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maxmacrolen=16*1024;
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type
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pmacrobuffer = ^tmacrobuffer;
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tmacrobuffer = array[0..maxmacrolen-1] of char;
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tmacro = class(tstoredsym)
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{Normally true, but false when a previously defined macro is undef-ed}
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defined : boolean;
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{True if this is a mac style compiler variable, in which case no macro
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substitutions shall be done.}
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is_compiler_var : boolean;
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{Whether the macro was used. NOTE: A use of a macro which was never defined}
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{e. g. an IFDEF which returns false, will not be registered as used,}
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{since there is no place to register its use. }
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is_used : boolean;
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buftext : pchar;
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buflen : longint;
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constructor create(const n : string);
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constructor ppuload(ppufile:tcompilerppufile);
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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destructor destroy;override;
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function GetCopy:tmacro;
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end;
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var
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generrorsym : tsym;
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implementation
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uses
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{ global }
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verbose,
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{ target }
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systems,
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{ symtable }
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defutil,symtable,
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fmodule,
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{ tree }
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node,
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{ aasm }
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aasmtai,aasmdata,
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{ codegen }
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paramgr,
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procinfo
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;
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{****************************************************************************
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Helpers
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****************************************************************************}
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{****************************************************************************
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TSYM (base for all symtypes)
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****************************************************************************}
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|
||
constructor tstoredsym.create(st:tsymtyp;const n : string);
|
||
begin
|
||
inherited create(st,n);
|
||
{ Register in current_module }
|
||
if assigned(current_module) then
|
||
begin
|
||
current_module.symlist.Add(self);
|
||
SymId:=current_module.symlist.Count-1;
|
||
end;
|
||
end;
|
||
|
||
|
||
constructor tstoredsym.ppuload(st:tsymtyp;ppufile:tcompilerppufile);
|
||
begin
|
||
SymId:=ppufile.getlongint;
|
||
inherited Create(st,ppufile.getstring);
|
||
{ Register symbol }
|
||
current_module.symlist[SymId]:=self;
|
||
ppufile.getposinfo(fileinfo);
|
||
visibility:=tvisibility(ppufile.getbyte);
|
||
ppufile.getsmallset(symoptions);
|
||
if sp_has_deprecated_msg in symoptions then
|
||
deprecatedmsg:=stringdup(ppufile.getstring)
|
||
else
|
||
deprecatedmsg:=nil;
|
||
end;
|
||
|
||
|
||
procedure tstoredsym.ppuwrite(ppufile:tcompilerppufile);
|
||
var
|
||
oldintfcrc : boolean;
|
||
begin
|
||
ppufile.putlongint(SymId);
|
||
ppufile.putstring(realname);
|
||
ppufile.putposinfo(fileinfo);
|
||
ppufile.putbyte(byte(visibility));
|
||
{ symoptions can differ between interface and implementation, except
|
||
for overload (this is checked in pdecsub.proc_add_definition() )
|
||
|
||
These differences can lead to compiler crashes, so ignore them.
|
||
This does mean that changing e.g. the "deprecated" state of a symbol
|
||
by itself will not trigger a recompilation of dependent units.
|
||
}
|
||
oldintfcrc:=ppufile.do_interface_crc;
|
||
ppufile.do_interface_crc:=false;
|
||
ppufile.putsmallset(symoptions);
|
||
if sp_has_deprecated_msg in symoptions then
|
||
ppufile.putstring(deprecatedmsg^);
|
||
ppufile.do_interface_crc:=oldintfcrc;
|
||
end;
|
||
|
||
|
||
destructor tstoredsym.destroy;
|
||
begin
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TLABELSYM
|
||
****************************************************************************}
|
||
|
||
constructor tlabelsym.create(const n : string);
|
||
begin
|
||
inherited create(labelsym,n);
|
||
used:=false;
|
||
defined:=false;
|
||
nonlocal:=false;
|
||
code:=nil;
|
||
end;
|
||
|
||
|
||
constructor tlabelsym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(labelsym,ppufile);
|
||
code:=nil;
|
||
used:=false;
|
||
nonlocal:=false;
|
||
defined:=true;
|
||
end;
|
||
|
||
|
||
procedure tlabelsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
if owner.symtabletype=globalsymtable then
|
||
Message(sym_e_ill_label_decl)
|
||
else
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.writeentry(iblabelsym);
|
||
end;
|
||
end;
|
||
|
||
|
||
function tlabelsym.mangledname:string;
|
||
begin
|
||
if not(defined) then
|
||
begin
|
||
defined:=true;
|
||
if nonlocal then
|
||
current_asmdata.getglobaljumplabel(asmblocklabel)
|
||
else
|
||
current_asmdata.getjumplabel(asmblocklabel);
|
||
end;
|
||
result:=asmblocklabel.name;
|
||
end;
|
||
|
||
{****************************************************************************
|
||
TUNITSYM
|
||
****************************************************************************}
|
||
|
||
constructor tunitsym.create(const n : string;amodule : tobject);
|
||
begin
|
||
inherited create(unitsym,n);
|
||
module:=amodule;
|
||
end;
|
||
|
||
constructor tunitsym.ppuload(ppufile:tcompilerppufile);
|
||
|
||
begin
|
||
inherited ppuload(unitsym,ppufile);
|
||
module:=nil;
|
||
end;
|
||
|
||
destructor tunitsym.destroy;
|
||
begin
|
||
inherited destroy;
|
||
end;
|
||
|
||
procedure tunitsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.writeentry(ibunitsym);
|
||
end;
|
||
|
||
{****************************************************************************
|
||
TNAMESPACESYM
|
||
****************************************************************************}
|
||
|
||
constructor tnamespacesym.create(const n : string);
|
||
begin
|
||
inherited create(namespacesym,n);
|
||
unitsym:=nil;
|
||
end;
|
||
|
||
constructor tnamespacesym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(namespacesym,ppufile);
|
||
ppufile.getderef(unitsymderef);
|
||
end;
|
||
|
||
procedure tnamespacesym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putderef(unitsymderef);
|
||
ppufile.writeentry(ibnamespacesym);
|
||
end;
|
||
|
||
procedure tnamespacesym.buildderef;
|
||
begin
|
||
inherited buildderef;
|
||
unitsymderef.build(unitsym);
|
||
end;
|
||
|
||
procedure tnamespacesym.deref;
|
||
begin
|
||
inherited deref;
|
||
unitsym:=tsym(unitsymderef.resolve);
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TPROCSYM
|
||
****************************************************************************}
|
||
|
||
constructor tprocsym.create(const n : string);
|
||
begin
|
||
inherited create(procsym,n);
|
||
FProcdefList:=TFPObjectList.Create(false);
|
||
FProcdefderefList:=nil;
|
||
{ the tprocdef have their own symoptions, make the procsym
|
||
always visible }
|
||
visibility:=vis_public;
|
||
end;
|
||
|
||
|
||
constructor tprocsym.ppuload(ppufile:tcompilerppufile);
|
||
var
|
||
pdderef : tderef;
|
||
i,
|
||
pdcnt : longint;
|
||
begin
|
||
inherited ppuload(procsym,ppufile);
|
||
FProcdefList:=TFPObjectList.Create(false);
|
||
FProcdefDerefList:=TFPList.Create;
|
||
pdcnt:=ppufile.getword;
|
||
for i:=1 to pdcnt do
|
||
begin
|
||
ppufile.getderef(pdderef);
|
||
FProcdefDerefList.Add(Pointer(PtrInt(pdderef.dataidx)));
|
||
end;
|
||
end;
|
||
|
||
|
||
destructor tprocsym.destroy;
|
||
begin
|
||
FProcdefList.Free;
|
||
if assigned(FProcdefDerefList) then
|
||
FProcdefDerefList.Free;
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
procedure tprocsym.ppuwrite(ppufile:tcompilerppufile);
|
||
var
|
||
i : longint;
|
||
d : tderef;
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putword(FProcdefDerefList.Count);
|
||
for i:=0 to FProcdefDerefList.Count-1 do
|
||
begin
|
||
d.dataidx:=PtrInt(FProcdefDerefList[i]);
|
||
ppufile.putderef(d);
|
||
end;
|
||
ppufile.writeentry(ibprocsym);
|
||
end;
|
||
|
||
|
||
procedure tprocsym.write_parameter_lists(skipdef:tprocdef);
|
||
var
|
||
i : longint;
|
||
pd : tprocdef;
|
||
begin
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
if pd<>skipdef then
|
||
MessagePos1(pd.fileinfo,sym_h_param_list,pd.fullprocname(false));
|
||
end;
|
||
end;
|
||
|
||
|
||
procedure tprocsym.check_forward;
|
||
var
|
||
i : longint;
|
||
pd : tprocdef;
|
||
begin
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
if (pd.owner=owner) and (pd.forwarddef) then
|
||
begin
|
||
{ For mode macpas. Make implicit externals (procedures declared in the interface
|
||
section which do not have a counterpart in the implementation)
|
||
to be an imported procedure }
|
||
if (m_mac in current_settings.modeswitches) and
|
||
(pd.interfacedef) then
|
||
begin
|
||
pd.setmangledname(target_info.CPrefix+tprocdef(pd).procsym.realname);
|
||
if (not current_module.interface_only) then
|
||
MessagePos1(pd.fileinfo,sym_w_forward_not_resolved,pd.fullprocname(false));
|
||
end
|
||
else
|
||
begin
|
||
MessagePos1(pd.fileinfo,sym_e_forward_not_resolved,pd.fullprocname(false));
|
||
end;
|
||
{ Turn further error messages off }
|
||
pd.forwarddef:=false;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
procedure tprocsym.buildderef;
|
||
var
|
||
i : longint;
|
||
pd : tprocdef;
|
||
d : tderef;
|
||
begin
|
||
if not assigned(FProcdefDerefList) then
|
||
FProcdefDerefList:=TFPList.Create
|
||
else
|
||
FProcdefDerefList.Clear;
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
{ only write the proc definitions that belong
|
||
to this procsym and are in the global symtable }
|
||
if pd.owner=owner then
|
||
begin
|
||
d.build(pd);
|
||
FProcdefDerefList.Add(Pointer(PtrInt(d.dataidx)));
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
procedure tprocsym.deref;
|
||
var
|
||
i : longint;
|
||
pd : tprocdef;
|
||
d : tderef;
|
||
begin
|
||
{ Clear all procdefs }
|
||
ProcdefList.Clear;
|
||
if not assigned(FProcdefDerefList) then
|
||
internalerror(200611031);
|
||
for i:=0 to FProcdefDerefList.Count-1 do
|
||
begin
|
||
d.dataidx:=PtrInt(FProcdefDerefList[i]);
|
||
pd:=tprocdef(d.resolve);
|
||
ProcdefList.Add(pd);
|
||
end;
|
||
end;
|
||
|
||
|
||
function Tprocsym.Find_procdef_bytype(pt:Tproctypeoption):Tprocdef;
|
||
var
|
||
i : longint;
|
||
pd : tprocdef;
|
||
begin
|
||
result:=nil;
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
if pd.proctypeoption=pt then
|
||
begin
|
||
result:=pd;
|
||
exit;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
function Tprocsym.Find_procdef_bypara(para:TFPObjectList;retdef:tdef;
|
||
cpoptions:tcompare_paras_options):Tprocdef;
|
||
var
|
||
i : longint;
|
||
pd : tprocdef;
|
||
eq : tequaltype;
|
||
begin
|
||
result:=nil;
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
if assigned(retdef) then
|
||
eq:=compare_defs(retdef,pd.returndef,nothingn)
|
||
else
|
||
eq:=te_equal;
|
||
if (eq>=te_equal) or
|
||
((cpo_allowconvert in cpoptions) and (eq>te_incompatible)) then
|
||
begin
|
||
eq:=compare_paras(para,pd.paras,cp_value_equal_const,cpoptions);
|
||
if (eq>=te_equal) or
|
||
((cpo_allowconvert in cpoptions) and (eq>te_incompatible)) then
|
||
begin
|
||
result:=pd;
|
||
exit;
|
||
end;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
function tprocsym.find_procdef_byoptions(ops: tprocoptions): Tprocdef;
|
||
var
|
||
i : longint;
|
||
pd : tprocdef;
|
||
begin
|
||
result:=nil;
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
if ops * pd.procoptions = ops then
|
||
begin
|
||
result:=pd;
|
||
exit;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
function Tprocsym.Find_procdef_byprocvardef(d:Tprocvardef):Tprocdef;
|
||
var
|
||
i : longint;
|
||
bestpd,
|
||
pd : tprocdef;
|
||
eq,besteq : tequaltype;
|
||
sym: tsym;
|
||
ps: tprocsym;
|
||
begin
|
||
{ This function will return the pprocdef of pprocsym that
|
||
is the best match for procvardef. When there are multiple
|
||
matches it returns nil.}
|
||
result:=nil;
|
||
bestpd:=nil;
|
||
besteq:=te_incompatible;
|
||
ps:=self;
|
||
repeat
|
||
for i:=0 to ps.ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ps.ProcdefList[i]);
|
||
eq:=proc_to_procvar_equal(pd,d,false);
|
||
if eq>=te_convert_l1 then
|
||
begin
|
||
{ multiple procvars with the same equal level }
|
||
if assigned(bestpd) and
|
||
(besteq=eq) then
|
||
exit;
|
||
if eq>besteq then
|
||
begin
|
||
besteq:=eq;
|
||
bestpd:=pd;
|
||
end;
|
||
end;
|
||
end;
|
||
{ maybe TODO: also search class helpers? -- this code is similar to
|
||
what happens in htypechk in
|
||
tcallcandidates.collect_overloads_in_struct: keep searching in
|
||
parent types in case the currently found procdef is marked as
|
||
"overload" and we haven't found a proper match yet }
|
||
if assigned(ps.owner.defowner) and
|
||
(ps.owner.defowner.typ=objectdef) and
|
||
assigned(tobjectdef(ps.owner.defowner).childof) and
|
||
(not assigned(bestpd) or
|
||
(po_overload in bestpd.procoptions)) then
|
||
begin
|
||
sym:=tsym(tobjectdef(ps.owner.defowner).childof.symtable.find(ps.name));
|
||
if assigned(sym) and
|
||
(sym.typ=procsym) then
|
||
ps:=tprocsym(sym)
|
||
else
|
||
ps:=nil;
|
||
end
|
||
else
|
||
ps:=nil;
|
||
until (besteq>=te_equal) or
|
||
not assigned(ps);
|
||
result:=bestpd;
|
||
end;
|
||
|
||
|
||
function Tprocsym.Find_procdef_assignment_operator(fromdef,todef:tdef;var besteq:tequaltype):Tprocdef;
|
||
var
|
||
paraidx, realparamcount,
|
||
i, j : longint;
|
||
bestpd,
|
||
hpd,
|
||
pd : tprocdef;
|
||
convtyp : tconverttype;
|
||
eq : tequaltype;
|
||
begin
|
||
{ This function will return the pprocdef of pprocsym that
|
||
is the best match for fromdef and todef. }
|
||
result:=nil;
|
||
bestpd:=nil;
|
||
besteq:=te_incompatible;
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
if (pd.owner.symtabletype=staticsymtable) and not pd.owner.iscurrentunit then
|
||
continue;
|
||
if (equal_defs(todef,pd.returndef) or
|
||
{ shortstrings of different lengths are ok as result }
|
||
(is_shortstring(todef) and is_shortstring(pd.returndef))) and
|
||
{ the result type must be always really equal and not an alias,
|
||
if you mess with this code, check tw4093 }
|
||
((todef=pd.returndef) or
|
||
(
|
||
not(df_unique in todef.defoptions) and
|
||
not(df_unique in pd.returndef.defoptions)
|
||
)
|
||
) then
|
||
begin
|
||
paraidx:=0;
|
||
{ ignore vs_hidden parameters }
|
||
while (paraidx<pd.paras.count) and
|
||
assigned(pd.paras[paraidx]) and
|
||
(vo_is_hidden_para in tparavarsym(pd.paras[paraidx]).varoptions) do
|
||
inc(paraidx);
|
||
realparamcount:=0;
|
||
for j := 0 to pd.paras.Count-1 do
|
||
if assigned(pd.paras[j]) and not (vo_is_hidden_para in tparavarsym(pd.paras[j]).varoptions) then
|
||
inc(realparamcount);
|
||
if (paraidx<pd.paras.count) and
|
||
assigned(pd.paras[paraidx]) and
|
||
(realparamcount = 1) then
|
||
begin
|
||
eq:=compare_defs_ext(fromdef,tparavarsym(pd.paras[paraidx]).vardef,nothingn,convtyp,hpd,[]);
|
||
|
||
{ alias? if yes, only l1 choice,
|
||
if you mess with this code, check tw4093 }
|
||
if (eq=te_exact) and
|
||
(fromdef<>tparavarsym(pd.paras[paraidx]).vardef) and
|
||
((df_unique in fromdef.defoptions) or
|
||
(df_unique in tparavarsym(pd.paras[paraidx]).vardef.defoptions)) then
|
||
eq:=te_convert_l1;
|
||
|
||
if eq=te_exact then
|
||
begin
|
||
besteq:=eq;
|
||
result:=pd;
|
||
exit;
|
||
end;
|
||
if eq>besteq then
|
||
begin
|
||
bestpd:=pd;
|
||
besteq:=eq;
|
||
end;
|
||
end;
|
||
end;
|
||
end;
|
||
result:=bestpd;
|
||
end;
|
||
|
||
function Tprocsym.find_procdef_enumerator_operator(fromdef,todef:tdef;var besteq:tequaltype):Tprocdef;
|
||
var
|
||
paraidx, realparamcount,
|
||
i, j : longint;
|
||
bestpd,
|
||
hpd,
|
||
pd : tprocdef;
|
||
current : tpropertysym;
|
||
convtyp : tconverttype;
|
||
eq : tequaltype;
|
||
begin
|
||
{ This function will return the pprocdef of pprocsym that
|
||
is the best match for fromdef and todef. }
|
||
result:=nil;
|
||
bestpd:=nil;
|
||
besteq:=te_incompatible;
|
||
for i:=0 to ProcdefList.Count-1 do
|
||
begin
|
||
pd:=tprocdef(ProcdefList[i]);
|
||
if (pd.owner.symtabletype=staticsymtable) and not pd.owner.iscurrentunit then
|
||
continue;
|
||
if not (is_class_or_interface_or_object(pd.returndef) or is_record(pd.returndef)) then
|
||
continue;
|
||
current := tpropertysym(tabstractrecorddef(pd.returndef).search_enumerator_current);
|
||
if (current = nil) then
|
||
continue;
|
||
// compare current result def with the todef
|
||
if (equal_defs(todef, current.propdef) or
|
||
{ shortstrings of different lengths are ok as result }
|
||
(is_shortstring(todef) and is_shortstring(current.propdef))) and
|
||
{ the result type must be always really equal and not an alias,
|
||
if you mess with this code, check tw4093 }
|
||
((todef=current.propdef) or
|
||
(
|
||
not(df_unique in todef.defoptions) and
|
||
not(df_unique in current.propdef.defoptions)
|
||
)
|
||
) then
|
||
begin
|
||
paraidx:=0;
|
||
{ ignore vs_hidden parameters }
|
||
while (paraidx<pd.paras.count) and
|
||
assigned(pd.paras[paraidx]) and
|
||
(vo_is_hidden_para in tparavarsym(pd.paras[paraidx]).varoptions) do
|
||
inc(paraidx);
|
||
realparamcount:=0;
|
||
for j := 0 to pd.paras.Count-1 do
|
||
if assigned(pd.paras[j]) and not (vo_is_hidden_para in tparavarsym(pd.paras[j]).varoptions) then
|
||
inc(realparamcount);
|
||
if (paraidx<pd.paras.count) and
|
||
assigned(pd.paras[paraidx]) and
|
||
(realparamcount = 1) then
|
||
begin
|
||
eq:=compare_defs_ext(fromdef,tparavarsym(pd.paras[paraidx]).vardef,nothingn,convtyp,hpd,[]);
|
||
|
||
{ alias? if yes, only l1 choice,
|
||
if you mess with this code, check tw4093 }
|
||
if (eq=te_exact) and
|
||
(fromdef<>tparavarsym(pd.paras[paraidx]).vardef) and
|
||
((df_unique in fromdef.defoptions) or
|
||
(df_unique in tparavarsym(pd.paras[paraidx]).vardef.defoptions)) then
|
||
eq:=te_convert_l1;
|
||
|
||
if eq=te_exact then
|
||
begin
|
||
besteq:=eq;
|
||
result:=pd;
|
||
exit;
|
||
end;
|
||
if eq>besteq then
|
||
begin
|
||
bestpd:=pd;
|
||
besteq:=eq;
|
||
end;
|
||
end;
|
||
end;
|
||
end;
|
||
result:=bestpd;
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TERRORSYM
|
||
****************************************************************************}
|
||
|
||
constructor terrorsym.create;
|
||
begin
|
||
inherited create(errorsym,'');
|
||
end;
|
||
|
||
{****************************************************************************
|
||
TPROPERTYSYM
|
||
****************************************************************************}
|
||
|
||
constructor tpropertysym.create(const n : string);
|
||
var
|
||
pap : tpropaccesslisttypes;
|
||
begin
|
||
inherited create(propertysym,n);
|
||
propoptions:=[];
|
||
index:=0;
|
||
default:=0;
|
||
propdef:=nil;
|
||
indexdef:=nil;
|
||
parast:=nil;
|
||
for pap:=low(tpropaccesslisttypes) to high(tpropaccesslisttypes) do
|
||
propaccesslist[pap]:=tpropaccesslist.create;
|
||
end;
|
||
|
||
|
||
constructor tpropertysym.ppuload(ppufile:tcompilerppufile);
|
||
var
|
||
pap : tpropaccesslisttypes;
|
||
begin
|
||
inherited ppuload(propertysym,ppufile);
|
||
ppufile.getsmallset(propoptions);
|
||
if ppo_overrides in propoptions then
|
||
ppufile.getderef(overriddenpropsymderef);
|
||
ppufile.getderef(propdefderef);
|
||
index:=ppufile.getlongint;
|
||
default:=ppufile.getlongint;
|
||
ppufile.getderef(indexdefderef);
|
||
for pap:=low(tpropaccesslisttypes) to high(tpropaccesslisttypes) do
|
||
propaccesslist[pap]:=ppufile.getpropaccesslist;
|
||
if [ppo_hasparameters,ppo_overrides]*propoptions=[ppo_hasparameters] then
|
||
begin
|
||
parast:=tparasymtable.create(nil,0);
|
||
tparasymtable(parast).ppuload(ppufile);
|
||
end
|
||
else
|
||
parast:=nil;
|
||
end;
|
||
|
||
|
||
destructor tpropertysym.destroy;
|
||
var
|
||
pap : tpropaccesslisttypes;
|
||
begin
|
||
for pap:=low(tpropaccesslisttypes) to high(tpropaccesslisttypes) do
|
||
propaccesslist[pap].free;
|
||
parast.free;
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
procedure tpropertysym.buildderef;
|
||
var
|
||
pap : tpropaccesslisttypes;
|
||
begin
|
||
propdefderef.build(propdef);
|
||
indexdefderef.build(indexdef);
|
||
for pap:=low(tpropaccesslisttypes) to high(tpropaccesslisttypes) do
|
||
propaccesslist[pap].buildderef;
|
||
if ppo_overrides in propoptions then
|
||
overriddenpropsymderef.build(overriddenpropsym)
|
||
else
|
||
if ppo_hasparameters in propoptions then
|
||
tparasymtable(parast).buildderef;
|
||
end;
|
||
|
||
|
||
procedure tpropertysym.deref;
|
||
var
|
||
pap : tpropaccesslisttypes;
|
||
begin
|
||
indexdef:=tdef(indexdefderef.resolve);
|
||
propdef:=tdef(propdefderef.resolve);
|
||
for pap:=low(tpropaccesslisttypes) to high(tpropaccesslisttypes) do
|
||
propaccesslist[pap].resolve;
|
||
|
||
if ppo_overrides in propoptions then
|
||
begin
|
||
overriddenpropsym:=tpropertysym(overriddenpropsymderef.resolve);
|
||
if ppo_hasparameters in propoptions then
|
||
parast:=overriddenpropsym.parast.getcopy;
|
||
end
|
||
else
|
||
if ppo_hasparameters in propoptions then
|
||
tparasymtable(parast).deref
|
||
end;
|
||
|
||
|
||
function tpropertysym.getsize : asizeint;
|
||
begin
|
||
getsize:=0;
|
||
end;
|
||
|
||
|
||
procedure tpropertysym.ppuwrite(ppufile:tcompilerppufile);
|
||
var
|
||
pap : tpropaccesslisttypes;
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putsmallset(propoptions);
|
||
if ppo_overrides in propoptions then
|
||
ppufile.putderef(overriddenpropsymderef);
|
||
ppufile.putderef(propdefderef);
|
||
ppufile.putlongint(index);
|
||
ppufile.putlongint(default);
|
||
ppufile.putderef(indexdefderef);
|
||
for pap:=low(tpropaccesslisttypes) to high(tpropaccesslisttypes) do
|
||
ppufile.putpropaccesslist(propaccesslist[pap]);
|
||
ppufile.writeentry(ibpropertysym);
|
||
if [ppo_hasparameters,ppo_overrides]*propoptions=[ppo_hasparameters] then
|
||
tparasymtable(parast).ppuwrite(ppufile);
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TABSTRACTVARSYM
|
||
****************************************************************************}
|
||
|
||
constructor tabstractvarsym.create(st:tsymtyp;const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
|
||
begin
|
||
inherited create(st,n);
|
||
vardef:=def;
|
||
varspez:=vsp;
|
||
varstate:=vs_declared;
|
||
varoptions:=vopts;
|
||
end;
|
||
|
||
|
||
constructor tabstractvarsym.ppuload(st:tsymtyp;ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(st,ppufile);
|
||
varstate:=vs_readwritten;
|
||
varspez:=tvarspez(ppufile.getbyte);
|
||
varregable:=tvarregable(ppufile.getbyte);
|
||
addr_taken:=boolean(ppufile.getbyte);
|
||
ppufile.getderef(vardefderef);
|
||
ppufile.getsmallset(varoptions);
|
||
end;
|
||
|
||
|
||
destructor tabstractvarsym.destroy;
|
||
begin
|
||
if assigned(notifications) then
|
||
notifications.destroy;
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
procedure tabstractvarsym.buildderef;
|
||
begin
|
||
vardefderef.build(vardef);
|
||
end;
|
||
|
||
|
||
procedure tabstractvarsym.deref;
|
||
var
|
||
oldvarregable: tvarregable;
|
||
begin
|
||
{ setting the vardef also updates varregable. We just loaded this }
|
||
{ value from a ppu, so it must not be changed (e.g. tw7817a.pp/ }
|
||
{ tw7817b.pp: the address is taken of a local variable in an }
|
||
{ inlined procedure -> must remain non-regable when inlining) }
|
||
oldvarregable:=varregable;
|
||
vardef:=tdef(vardefderef.resolve);
|
||
varregable:=oldvarregable;
|
||
end;
|
||
|
||
|
||
procedure tabstractvarsym.ppuwrite(ppufile:tcompilerppufile);
|
||
var
|
||
oldintfcrc : boolean;
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putbyte(byte(varspez));
|
||
oldintfcrc:=ppufile.do_crc;
|
||
ppufile.do_crc:=false;
|
||
ppufile.putbyte(byte(varregable));
|
||
ppufile.putbyte(byte(addr_taken));
|
||
ppufile.do_crc:=oldintfcrc;
|
||
ppufile.putderef(vardefderef);
|
||
ppufile.putsmallset(varoptions);
|
||
end;
|
||
|
||
|
||
function tabstractvarsym.getsize : asizeint;
|
||
begin
|
||
if assigned(vardef) and
|
||
((vardef.typ<>arraydef) or
|
||
is_dynamic_array(vardef) or
|
||
(tarraydef(vardef).highrange>=tarraydef(vardef).lowrange)) then
|
||
result:=vardef.size
|
||
else
|
||
result:=0;
|
||
end;
|
||
|
||
|
||
function tabstractvarsym.getpackedbitsize : longint;
|
||
begin
|
||
{ bitpacking is only done for ordinals }
|
||
if not is_ordinal(vardef) then
|
||
internalerror(2006082010);
|
||
result:=vardef.packedbitsize;
|
||
end;
|
||
|
||
|
||
function tabstractvarsym.is_regvar(refpara: boolean):boolean;
|
||
begin
|
||
{ Register variables are not allowed in the following cases:
|
||
- regvars are disabled
|
||
- exceptions are used (after an exception is raised the contents of the
|
||
registers is not valid anymore)
|
||
- it has a local copy
|
||
- the value needs to be in memory (i.e. reference counted) }
|
||
result:=(cs_opt_regvar in current_settings.optimizerswitches) and
|
||
not(pi_has_assembler_block in current_procinfo.flags) and
|
||
not(pi_uses_exceptions in current_procinfo.flags) and
|
||
not(pi_has_interproclabel in current_procinfo.flags) and
|
||
not(vo_has_local_copy in varoptions) and
|
||
((refpara and
|
||
(varregable <> vr_none)) or
|
||
(not refpara and
|
||
not(varregable in [vr_none,vr_addr])))
|
||
{$if not defined(powerpc) and not defined(powerpc64)}
|
||
and ((vardef.typ <> recorddef) or
|
||
(varregable = vr_addr) or
|
||
not(varstate in [vs_written,vs_readwritten]));
|
||
{$endif}
|
||
end;
|
||
|
||
|
||
procedure tabstractvarsym.trigger_notifications(what:Tnotification_flag);
|
||
|
||
var n:Tnotification;
|
||
|
||
begin
|
||
if assigned(notifications) then
|
||
begin
|
||
n:=Tnotification(notifications.first);
|
||
while assigned(n) do
|
||
begin
|
||
if what in n.flags then
|
||
n.callback(what,self);
|
||
n:=Tnotification(n.next);
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
function Tabstractvarsym.register_notification(flags:Tnotification_flags;callback:
|
||
Tnotification_callback):cardinal;
|
||
|
||
var n:Tnotification;
|
||
|
||
begin
|
||
if not assigned(notifications) then
|
||
notifications:=Tlinkedlist.create;
|
||
n:=Tnotification.create(flags,callback);
|
||
register_notification:=n.id;
|
||
notifications.concat(n);
|
||
end;
|
||
|
||
procedure Tabstractvarsym.unregister_notification(id:cardinal);
|
||
|
||
var n:Tnotification;
|
||
|
||
begin
|
||
if not assigned(notifications) then
|
||
internalerror(200212311)
|
||
else
|
||
begin
|
||
n:=Tnotification(notifications.first);
|
||
while assigned(n) do
|
||
begin
|
||
if n.id=id then
|
||
begin
|
||
notifications.remove(n);
|
||
n.destroy;
|
||
exit;
|
||
end;
|
||
n:=Tnotification(n.next);
|
||
end;
|
||
internalerror(200212311)
|
||
end;
|
||
end;
|
||
|
||
procedure tabstractvarsym.setvardef(def:tdef);
|
||
begin
|
||
_vardef := def;
|
||
{ can we load the value into a register ? }
|
||
if not assigned(owner) or
|
||
(owner.symtabletype in [localsymtable,parasymtable]) or
|
||
(
|
||
(owner.symtabletype=staticsymtable) and
|
||
not(cs_create_pic in current_settings.moduleswitches)
|
||
) then
|
||
begin
|
||
if tstoreddef(vardef).is_intregable then
|
||
varregable:=vr_intreg
|
||
else
|
||
{ $warning TODO: no fpu regvar in staticsymtable yet, need initialization with 0 }
|
||
if {(
|
||
not assigned(owner) or
|
||
(owner.symtabletype<>staticsymtable)
|
||
) and }
|
||
tstoreddef(vardef).is_fpuregable then
|
||
begin
|
||
if use_vectorfpu(vardef) then
|
||
varregable:=vr_mmreg
|
||
else
|
||
varregable:=vr_fpureg;
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TFIELDVARSYM
|
||
****************************************************************************}
|
||
|
||
constructor tfieldvarsym.create(const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
|
||
begin
|
||
inherited create(fieldvarsym,n,vsp,def,vopts);
|
||
fieldoffset:=-1;
|
||
end;
|
||
|
||
|
||
constructor tfieldvarsym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(fieldvarsym,ppufile);
|
||
fieldoffset:=ppufile.getaint;
|
||
end;
|
||
|
||
|
||
procedure tfieldvarsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putaint(fieldoffset);
|
||
ppufile.writeentry(ibfieldvarsym);
|
||
end;
|
||
|
||
|
||
function tfieldvarsym.mangledname:string;
|
||
var
|
||
srsym : tsym;
|
||
srsymtable : tsymtable;
|
||
begin
|
||
if sp_static in symoptions then
|
||
begin
|
||
if searchsym(lower(owner.name^)+'_'+name,srsym,srsymtable) then
|
||
result:=srsym.mangledname
|
||
{ when generating the debug info for the module in which the }
|
||
{ symbol is defined, the localsymtable of that module is }
|
||
{ already popped from the symtablestack }
|
||
else if searchsym_in_module(current_module,lower(owner.name^)+'_'+name,srsym,srsymtable) then
|
||
result:=srsym.mangledname
|
||
else
|
||
internalerror(2007012501);
|
||
end
|
||
else if is_objcclass(tdef(owner.defowner)) then
|
||
begin
|
||
if assigned(objcoffsetmangledname) then
|
||
result:=objcoffsetmangledname^
|
||
else
|
||
begin
|
||
result:=target_info.cprefix+'OBJC_IVAR_$_'+tobjectdef(owner.defowner).objextname^+'.'+RealName;
|
||
objcoffsetmangledname:=stringdup(result);
|
||
end;
|
||
end
|
||
else
|
||
result:=inherited mangledname;
|
||
end;
|
||
|
||
|
||
destructor tfieldvarsym.destroy;
|
||
begin
|
||
stringdispose(objcoffsetmangledname);
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TABSTRACTNORMALVARSYM
|
||
****************************************************************************}
|
||
|
||
constructor tabstractnormalvarsym.create(st:tsymtyp;const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
|
||
begin
|
||
inherited create(st,n,vsp,def,vopts);
|
||
fillchar(localloc,sizeof(localloc),0);
|
||
fillchar(initialloc,sizeof(initialloc),0);
|
||
defaultconstsym:=nil;
|
||
end;
|
||
|
||
|
||
constructor tabstractnormalvarsym.ppuload(st:tsymtyp;ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(st,ppufile);
|
||
fillchar(localloc,sizeof(localloc),0);
|
||
fillchar(initialloc,sizeof(initialloc),0);
|
||
ppufile.getderef(defaultconstsymderef);
|
||
end;
|
||
|
||
|
||
procedure tabstractnormalvarsym.buildderef;
|
||
begin
|
||
inherited buildderef;
|
||
defaultconstsymderef.build(defaultconstsym);
|
||
end;
|
||
|
||
|
||
procedure tabstractnormalvarsym.deref;
|
||
begin
|
||
inherited deref;
|
||
defaultconstsym:=tsym(defaultconstsymderef.resolve);
|
||
end;
|
||
|
||
|
||
procedure tabstractnormalvarsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putderef(defaultconstsymderef);
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
Tstaticvarsym
|
||
****************************************************************************}
|
||
|
||
constructor tstaticvarsym.create(const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
|
||
begin
|
||
inherited create(staticvarsym,n,vsp,def,vopts);
|
||
_mangledname:=nil;
|
||
end;
|
||
|
||
|
||
constructor tstaticvarsym.create_dll(const n : string;vsp:tvarspez;def:tdef);
|
||
begin
|
||
tstaticvarsym(self).create(n,vsp,def,[vo_is_dll_var]);
|
||
end;
|
||
|
||
|
||
constructor tstaticvarsym.create_C(const n,mangled : string;vsp:tvarspez;def:tdef);
|
||
begin
|
||
tstaticvarsym(self).create(n,vsp,def,[]);
|
||
set_mangledname(mangled);
|
||
end;
|
||
|
||
|
||
constructor tstaticvarsym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(staticvarsym,ppufile);
|
||
if vo_has_mangledname in varoptions then
|
||
_mangledname:=stringdup(ppufile.getstring)
|
||
else
|
||
_mangledname:=nil;
|
||
if vo_has_section in varoptions then
|
||
section:=ppufile.getansistring;
|
||
end;
|
||
|
||
|
||
destructor tstaticvarsym.destroy;
|
||
begin
|
||
if assigned(_mangledname) then
|
||
begin
|
||
{$ifdef MEMDEBUG}
|
||
memmanglednames.start;
|
||
{$endif MEMDEBUG}
|
||
stringdispose(_mangledname);
|
||
{$ifdef MEMDEBUG}
|
||
memmanglednames.stop;
|
||
{$endif MEMDEBUG}
|
||
end;
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
procedure tstaticvarsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
if vo_has_mangledname in varoptions then
|
||
ppufile.putstring(_mangledname^);
|
||
if vo_has_section in varoptions then
|
||
ppufile.putansistring(section);
|
||
ppufile.writeentry(ibstaticvarsym);
|
||
end;
|
||
|
||
|
||
function tstaticvarsym.mangledname:string;
|
||
var
|
||
prefix : string[2];
|
||
begin
|
||
if not assigned(_mangledname) then
|
||
begin
|
||
if (vo_is_typed_const in varoptions) then
|
||
prefix:='TC'
|
||
else
|
||
prefix:='U';
|
||
{$ifdef compress}
|
||
_mangledname:=stringdup(minilzw_encode(make_mangledname(prefix,owner,name)));
|
||
{$else}
|
||
_mangledname:=stringdup(make_mangledname(prefix,owner,name));
|
||
{$endif}
|
||
end;
|
||
result:=_mangledname^;
|
||
end;
|
||
|
||
|
||
procedure tstaticvarsym.set_mangledname(const s:string);
|
||
begin
|
||
stringdispose(_mangledname);
|
||
{$ifdef compress}
|
||
_mangledname:=stringdup(minilzw_encode(s));
|
||
{$else}
|
||
_mangledname:=stringdup(s);
|
||
{$endif}
|
||
include(varoptions,vo_has_mangledname);
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TLOCALVARSYM
|
||
****************************************************************************}
|
||
|
||
constructor tlocalvarsym.create(const n : string;vsp:tvarspez;def:tdef;vopts:tvaroptions);
|
||
begin
|
||
inherited create(localvarsym,n,vsp,def,vopts);
|
||
end;
|
||
|
||
|
||
constructor tlocalvarsym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(localvarsym,ppufile);
|
||
end;
|
||
|
||
|
||
procedure tlocalvarsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.writeentry(iblocalvarsym);
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TPARAVARSYM
|
||
****************************************************************************}
|
||
|
||
constructor tparavarsym.create(const n : string;nr:word;vsp:tvarspez;def:tdef;vopts:tvaroptions);
|
||
begin
|
||
inherited create(paravarsym,n,vsp,def,vopts);
|
||
if (vsp in [vs_var,vs_value,vs_const,vs_constref]) then
|
||
varstate := vs_initialised;
|
||
paranr:=nr;
|
||
paraloc[calleeside].init;
|
||
paraloc[callerside].init;
|
||
end;
|
||
|
||
|
||
destructor tparavarsym.destroy;
|
||
begin
|
||
paraloc[calleeside].done;
|
||
paraloc[callerside].done;
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
constructor tparavarsym.ppuload(ppufile:tcompilerppufile);
|
||
var
|
||
b : byte;
|
||
begin
|
||
inherited ppuload(paravarsym,ppufile);
|
||
paranr:=ppufile.getword;
|
||
univpara:=boolean(ppufile.getbyte);
|
||
|
||
{ The var state of parameter symbols is fixed after writing them so
|
||
we write them to the unit file.
|
||
This enables constant folding for inline procedures loaded from units
|
||
}
|
||
varstate:=tvarstate(ppufile.getbyte);
|
||
|
||
paraloc[calleeside].init;
|
||
paraloc[callerside].init;
|
||
if vo_has_explicit_paraloc in varoptions then
|
||
begin
|
||
paraloc[callerside].alignment:=ppufile.getbyte;
|
||
b:=ppufile.getbyte;
|
||
if b<>sizeof(paraloc[callerside].location^) then
|
||
internalerror(200411154);
|
||
ppufile.getdata(paraloc[callerside].add_location^,sizeof(paraloc[callerside].location^));
|
||
paraloc[callerside].size:=paraloc[callerside].location^.size;
|
||
paraloc[callerside].intsize:=tcgsize2size[paraloc[callerside].size];
|
||
end;
|
||
end;
|
||
|
||
|
||
procedure tparavarsym.ppuwrite(ppufile:tcompilerppufile);
|
||
var
|
||
oldintfcrc : boolean;
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putword(paranr);
|
||
ppufile.putbyte(byte(univpara));
|
||
|
||
{ The var state of parameter symbols is fixed after writing them so
|
||
we write them to the unit file.
|
||
This enables constant folding for inline procedures loaded from units
|
||
}
|
||
oldintfcrc:=ppufile.do_crc;
|
||
ppufile.do_crc:=false;
|
||
ppufile.putbyte(ord(varstate));
|
||
ppufile.do_crc:=oldintfcrc;
|
||
|
||
if vo_has_explicit_paraloc in varoptions then
|
||
begin
|
||
paraloc[callerside].check_simple_location;
|
||
ppufile.putbyte(sizeof(paraloc[callerside].alignment));
|
||
ppufile.putbyte(sizeof(paraloc[callerside].location^));
|
||
ppufile.putdata(paraloc[callerside].location^,sizeof(paraloc[callerside].location^));
|
||
end;
|
||
ppufile.writeentry(ibparavarsym);
|
||
end;
|
||
|
||
function tparavarsym.needs_finalization:boolean;
|
||
begin
|
||
result:=(varspez=vs_value) and
|
||
(is_managed_type(vardef) or
|
||
(
|
||
(not (tabstractprocdef(owner.defowner).proccalloption in cdecl_pocalls)) and
|
||
(not paramanager.use_stackalloc) and
|
||
(is_open_array(vardef) or is_array_of_const(vardef))
|
||
)
|
||
);
|
||
end;
|
||
|
||
{****************************************************************************
|
||
TABSOLUTEVARSYM
|
||
****************************************************************************}
|
||
|
||
constructor tabsolutevarsym.create(const n : string;def:tdef);
|
||
begin
|
||
inherited create(absolutevarsym,n,vs_value,def,[]);
|
||
ref:=nil;
|
||
end;
|
||
|
||
|
||
constructor tabsolutevarsym.create_ref(const n : string;def:tdef;_ref:tpropaccesslist);
|
||
begin
|
||
inherited create(absolutevarsym,n,vs_value,def,[]);
|
||
ref:=_ref;
|
||
end;
|
||
|
||
|
||
destructor tabsolutevarsym.destroy;
|
||
begin
|
||
if assigned(ref) then
|
||
ref.free;
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
constructor tabsolutevarsym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(absolutevarsym,ppufile);
|
||
ref:=nil;
|
||
asmname:=nil;
|
||
abstyp:=absolutetyp(ppufile.getbyte);
|
||
{$ifdef i386}
|
||
absseg:=false;
|
||
{$endif i386}
|
||
case abstyp of
|
||
tovar :
|
||
ref:=ppufile.getpropaccesslist;
|
||
toasm :
|
||
asmname:=stringdup(ppufile.getstring);
|
||
toaddr :
|
||
begin
|
||
addroffset:=ppufile.getaword;
|
||
{$ifdef i386}
|
||
absseg:=boolean(ppufile.getbyte);
|
||
{$endif i386}
|
||
end;
|
||
end;
|
||
end;
|
||
|
||
|
||
procedure tabsolutevarsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putbyte(byte(abstyp));
|
||
case abstyp of
|
||
tovar :
|
||
ppufile.putpropaccesslist(ref);
|
||
toasm :
|
||
ppufile.putstring(asmname^);
|
||
toaddr :
|
||
begin
|
||
ppufile.putaword(addroffset);
|
||
{$ifdef i386}
|
||
ppufile.putbyte(byte(absseg));
|
||
{$endif i386}
|
||
end;
|
||
end;
|
||
ppufile.writeentry(ibabsolutevarsym);
|
||
end;
|
||
|
||
|
||
procedure tabsolutevarsym.buildderef;
|
||
begin
|
||
inherited buildderef;
|
||
if (abstyp=tovar) then
|
||
ref.buildderef;
|
||
end;
|
||
|
||
|
||
procedure tabsolutevarsym.deref;
|
||
begin
|
||
inherited deref;
|
||
{ own absolute deref }
|
||
if (abstyp=tovar) then
|
||
ref.resolve;
|
||
end;
|
||
|
||
|
||
function tabsolutevarsym.mangledname : string;
|
||
begin
|
||
case abstyp of
|
||
toasm :
|
||
mangledname:=asmname^;
|
||
toaddr :
|
||
mangledname:='$'+tostr(addroffset);
|
||
else
|
||
internalerror(200411062);
|
||
end;
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TCONSTSYM
|
||
****************************************************************************}
|
||
|
||
constructor tconstsym.create_ord(const n : string;t : tconsttyp;v : tconstexprint;def:tdef);
|
||
begin
|
||
inherited create(constsym,n);
|
||
fillchar(value, sizeof(value), #0);
|
||
consttyp:=t;
|
||
value.valueord:=v;
|
||
constdef:=def;
|
||
end;
|
||
|
||
|
||
constructor tconstsym.create_ordptr(const n : string;t : tconsttyp;v : tconstptruint;def:tdef);
|
||
begin
|
||
inherited create(constsym,n);
|
||
fillchar(value, sizeof(value), #0);
|
||
consttyp:=t;
|
||
value.valueordptr:=v;
|
||
constdef:=def;
|
||
end;
|
||
|
||
|
||
constructor tconstsym.create_ptr(const n : string;t : tconsttyp;v : pointer;def:tdef);
|
||
begin
|
||
inherited create(constsym,n);
|
||
fillchar(value, sizeof(value), #0);
|
||
consttyp:=t;
|
||
value.valueptr:=v;
|
||
constdef:=def;
|
||
end;
|
||
|
||
|
||
constructor tconstsym.create_string(const n : string;t : tconsttyp;str:pchar;l:longint);
|
||
begin
|
||
inherited create(constsym,n);
|
||
fillchar(value, sizeof(value), #0);
|
||
consttyp:=t;
|
||
value.valueptr:=str;
|
||
constdef:=nil;
|
||
value.len:=l;
|
||
end;
|
||
|
||
|
||
constructor tconstsym.create_wstring(const n : string;t : tconsttyp;pw:pcompilerwidestring);
|
||
begin
|
||
inherited create(constsym,n);
|
||
fillchar(value, sizeof(value), #0);
|
||
consttyp:=t;
|
||
pcompilerwidestring(value.valueptr):=pw;
|
||
constdef:=nil;
|
||
value.len:=getlengthwidestring(pw);
|
||
end;
|
||
|
||
|
||
constructor tconstsym.ppuload(ppufile:tcompilerppufile);
|
||
var
|
||
pd : pbestreal;
|
||
ps : pnormalset;
|
||
pc : pchar;
|
||
pw : pcompilerwidestring;
|
||
i : longint;
|
||
begin
|
||
inherited ppuload(constsym,ppufile);
|
||
constdef:=nil;
|
||
consttyp:=tconsttyp(ppufile.getbyte);
|
||
fillchar(value, sizeof(value), #0);
|
||
case consttyp of
|
||
constord :
|
||
begin
|
||
ppufile.getderef(constdefderef);
|
||
value.valueord:=ppufile.getexprint;
|
||
end;
|
||
constpointer :
|
||
begin
|
||
ppufile.getderef(constdefderef);
|
||
value.valueordptr:=ppufile.getptruint;
|
||
end;
|
||
constwstring :
|
||
begin
|
||
initwidestring(pw);
|
||
setlengthwidestring(pw,ppufile.getlongint);
|
||
{ don't use getdata, because the compilerwidechars may have to
|
||
be byteswapped
|
||
}
|
||
{$if sizeof(tcompilerwidechar) = 2}
|
||
for i:=0 to pw^.len-1 do
|
||
pw^.data[i]:=ppufile.getword;
|
||
{$elseif sizeof(tcompilerwidechar) = 4}
|
||
for i:=0 to pw^.len-1 do
|
||
pw^.data[i]:=cardinal(ppufile.getlongint);
|
||
{$else}
|
||
{$error Unsupported tcompilerwidechar size}
|
||
{$endif}
|
||
pcompilerwidestring(value.valueptr):=pw;
|
||
end;
|
||
conststring,
|
||
constresourcestring :
|
||
begin
|
||
value.len:=ppufile.getlongint;
|
||
getmem(pc,value.len+1);
|
||
ppufile.getdata(pc^,value.len);
|
||
pc[value.len]:=#0;
|
||
value.valueptr:=pc;
|
||
end;
|
||
constreal :
|
||
begin
|
||
new(pd);
|
||
pd^:=ppufile.getreal;
|
||
value.valueptr:=pd;
|
||
end;
|
||
constset :
|
||
begin
|
||
ppufile.getderef(constdefderef);
|
||
new(ps);
|
||
ppufile.getnormalset(ps^);
|
||
value.valueptr:=ps;
|
||
end;
|
||
constguid :
|
||
begin
|
||
new(pguid(value.valueptr));
|
||
ppufile.getdata(value.valueptr^,sizeof(tguid));
|
||
end;
|
||
constnil : ;
|
||
else
|
||
Message1(unit_f_ppu_invalid_entry,tostr(ord(consttyp)));
|
||
end;
|
||
end;
|
||
|
||
|
||
destructor tconstsym.destroy;
|
||
begin
|
||
case consttyp of
|
||
conststring,
|
||
constresourcestring :
|
||
freemem(pchar(value.valueptr),value.len+1);
|
||
constwstring :
|
||
donewidestring(pcompilerwidestring(value.valueptr));
|
||
constreal :
|
||
dispose(pbestreal(value.valueptr));
|
||
constset :
|
||
dispose(pnormalset(value.valueptr));
|
||
constguid :
|
||
dispose(pguid(value.valueptr));
|
||
end;
|
||
inherited destroy;
|
||
end;
|
||
|
||
|
||
procedure tconstsym.buildderef;
|
||
begin
|
||
if consttyp in [constord,constpointer,constset] then
|
||
constdefderef.build(constdef);
|
||
end;
|
||
|
||
|
||
procedure tconstsym.deref;
|
||
begin
|
||
if consttyp in [constord,constpointer,constset] then
|
||
constdef:=tdef(constdefderef.resolve);
|
||
end;
|
||
|
||
|
||
procedure tconstsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putbyte(byte(consttyp));
|
||
case consttyp of
|
||
constnil : ;
|
||
constord :
|
||
begin
|
||
ppufile.putderef(constdefderef);
|
||
ppufile.putexprint(value.valueord);
|
||
end;
|
||
constpointer :
|
||
begin
|
||
ppufile.putderef(constdefderef);
|
||
ppufile.putptruint(value.valueordptr);
|
||
end;
|
||
constwstring :
|
||
begin
|
||
ppufile.putlongint(getlengthwidestring(pcompilerwidestring(value.valueptr)));
|
||
ppufile.putdata(pcompilerwidestring(value.valueptr)^.data^,pcompilerwidestring(value.valueptr)^.len*sizeof(tcompilerwidechar));
|
||
end;
|
||
conststring,
|
||
constresourcestring :
|
||
begin
|
||
ppufile.putlongint(value.len);
|
||
ppufile.putdata(pchar(value.valueptr)^,value.len);
|
||
end;
|
||
constreal :
|
||
ppufile.putreal(pbestreal(value.valueptr)^);
|
||
constset :
|
||
begin
|
||
ppufile.putderef(constdefderef);
|
||
ppufile.putnormalset(value.valueptr^);
|
||
end;
|
||
constguid :
|
||
ppufile.putdata(value.valueptr^,sizeof(tguid));
|
||
else
|
||
internalerror(13);
|
||
end;
|
||
ppufile.writeentry(ibconstsym);
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TENUMSYM
|
||
****************************************************************************}
|
||
|
||
constructor tenumsym.create(const n : string;def : tenumdef;v : longint);
|
||
begin
|
||
inherited create(enumsym,n);
|
||
definition:=def;
|
||
value:=v;
|
||
end;
|
||
|
||
|
||
constructor tenumsym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(enumsym,ppufile);
|
||
ppufile.getderef(definitionderef);
|
||
value:=ppufile.getlongint;
|
||
end;
|
||
|
||
|
||
procedure tenumsym.buildderef;
|
||
begin
|
||
definitionderef.build(definition);
|
||
end;
|
||
|
||
|
||
procedure tenumsym.deref;
|
||
begin
|
||
definition:=tenumdef(definitionderef.resolve);
|
||
end;
|
||
|
||
procedure tenumsym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putderef(definitionderef);
|
||
ppufile.putlongint(value);
|
||
ppufile.writeentry(ibenumsym);
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TTYPESYM
|
||
****************************************************************************}
|
||
|
||
constructor ttypesym.create(const n : string;def:tdef);
|
||
|
||
begin
|
||
inherited create(typesym,n);
|
||
typedef:=def;
|
||
{ register the typesym for the definition }
|
||
if assigned(typedef) and
|
||
(typedef.typ<>errordef) and
|
||
not(assigned(typedef.typesym)) then
|
||
typedef.typesym:=self;
|
||
end;
|
||
|
||
|
||
constructor ttypesym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(typesym,ppufile);
|
||
ppufile.getderef(typedefderef);
|
||
fprettyname:=ppufile.getansistring;
|
||
end;
|
||
|
||
|
||
procedure ttypesym.buildderef;
|
||
begin
|
||
typedefderef.build(typedef);
|
||
end;
|
||
|
||
|
||
procedure ttypesym.deref;
|
||
begin
|
||
typedef:=tdef(typedefderef.resolve);
|
||
end;
|
||
|
||
|
||
procedure ttypesym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putderef(typedefderef);
|
||
ppufile.putansistring(fprettyname);
|
||
ppufile.writeentry(ibtypesym);
|
||
end;
|
||
|
||
|
||
function ttypesym.prettyname : string;
|
||
begin
|
||
if fprettyname<>'' then
|
||
result:=fprettyname
|
||
else
|
||
result:=inherited prettyname;
|
||
end;
|
||
|
||
|
||
{****************************************************************************
|
||
TSYSSYM
|
||
****************************************************************************}
|
||
|
||
constructor tsyssym.create(const n : string;l : longint);
|
||
begin
|
||
inherited create(syssym,n);
|
||
number:=l;
|
||
end;
|
||
|
||
constructor tsyssym.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(syssym,ppufile);
|
||
number:=ppufile.getlongint;
|
||
end;
|
||
|
||
destructor tsyssym.destroy;
|
||
begin
|
||
inherited destroy;
|
||
end;
|
||
|
||
procedure tsyssym.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putlongint(number);
|
||
ppufile.writeentry(ibsyssym);
|
||
end;
|
||
|
||
|
||
{*****************************************************************************
|
||
TMacro
|
||
*****************************************************************************}
|
||
|
||
constructor tmacro.create(const n : string);
|
||
begin
|
||
inherited create(macrosym,n);
|
||
owner:=nil;
|
||
defined:=false;
|
||
is_used:=false;
|
||
is_compiler_var:=false;
|
||
buftext:=nil;
|
||
buflen:=0;
|
||
end;
|
||
|
||
constructor tmacro.ppuload(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuload(macrosym,ppufile);
|
||
defined:=boolean(ppufile.getbyte);
|
||
is_compiler_var:=boolean(ppufile.getbyte);
|
||
is_used:=false;
|
||
buflen:= ppufile.getlongint;
|
||
if buflen > 0 then
|
||
begin
|
||
getmem(buftext, buflen);
|
||
ppufile.getdata(buftext^, buflen)
|
||
end
|
||
else
|
||
buftext:=nil;
|
||
end;
|
||
|
||
destructor tmacro.destroy;
|
||
begin
|
||
if assigned(buftext) then
|
||
freemem(buftext);
|
||
inherited destroy;
|
||
end;
|
||
|
||
procedure tmacro.ppuwrite(ppufile:tcompilerppufile);
|
||
begin
|
||
inherited ppuwrite(ppufile);
|
||
ppufile.putbyte(byte(defined));
|
||
ppufile.putbyte(byte(is_compiler_var));
|
||
ppufile.putlongint(buflen);
|
||
if buflen > 0 then
|
||
ppufile.putdata(buftext^,buflen);
|
||
ppufile.writeentry(ibmacrosym);
|
||
end;
|
||
|
||
|
||
function tmacro.GetCopy:tmacro;
|
||
var
|
||
p : tmacro;
|
||
begin
|
||
p:=tmacro.create(realname);
|
||
p.defined:=defined;
|
||
p.is_used:=is_used;
|
||
p.is_compiler_var:=is_compiler_var;
|
||
p.buflen:=buflen;
|
||
if assigned(buftext) then
|
||
begin
|
||
getmem(p.buftext,buflen);
|
||
move(buftext^,p.buftext^,buflen);
|
||
end;
|
||
Result:=p;
|
||
end;
|
||
|
||
end.
|