Commit graph

8 commits

Author SHA1 Message Date
Christoph Oelckers
f810b98167 - implement flag variables with the VM's sbit and lbit instructions.
- synthesize PField entries from the flag list for AActor. This intentionally excludes the bounce flags for now.
- allow deprecated flags that do not call the deprecated flag handler.
- disallow constructs like (a = b) = c by not allowing an address request on an assignment operation.
- restrict modify/assign on boolean variables to the bit operators. Everything else needs to promote the result to an integer to make sense so it should be disallowed.
2016-10-24 17:18:20 +02:00
Christoph Oelckers
d6047ae651 - added the required code genration nodes for member function calls.
This is not testable right now because finally the action function mess has come full circle. The current setup makes it impossible to call action functions from non-action functions because the needed info is local to the functions.
Long avoided, this needs to be refactored now so that the different semantics for action functions are no longer needed.
2016-10-22 12:10:19 +02:00
Christoph Oelckers
2d85efce2a - added processing of compound statements to the compiler. This means that anonymous functions without control statements are generating code now.
- added local variable declarations to the code generator. This is not tested yet, that will come with the next commit.
2016-10-19 19:05:48 +02:00
Christoph Oelckers
c3e693b507 - added FindClassMemberFunction which retrieves a function symbol and performs some verification.
- removed Self parameter from FxFunctionCall. Actual member function calls through an object require quite different handling so lumping these two together makes no sense.
- added a workaround to deal with ACS_NamedExecuteWithResult to both the compiler and FindClassMemberFunction. The way the ZScript compiler sets this up means that it will call the builtin, not the actual action function, so the parser needs to do some explicit check to get past the same-named action function.
- pass a proper self pointer to FxActionSpecial. Although it's still not being used, propagating design shortcuts through several function levels is a very, very bad idea.
2016-10-15 20:16:44 +02:00
Christoph Oelckers
32a3f57a54 - more preparations to compile functions:
* Allow PFunction to work without a VMFunction being attached.
 * The Variant for a function must store the prototype itself instead of relying on the VMFunction it points to. Otherwise it would not be possible to reference a prototype during compilation of the function because it does not exist yet.
 * Give the variant a list of the function's argument's names, because these are also needed to compile the function.
 * create an anonymous function symbol when the function gets registered to the builder. At this point we have all the needed information to set it up correctly, but later this is no longer the case. This is the most convenient info to have here because it contains everything that's needed to compile the function in the proper context, so it has to be present when starting compilation.
 * added some preparations to implement special handling for weapons and custom inventory items, which can run action functions in another actor's context. This part is not active yet but the basics are present in SetImplicitArgs.
2016-10-15 14:36:08 +02:00
Christoph Oelckers
a72fbb771f - separated the code generation from the DECORATE parser and cleaned up the interface to the code generator. Most importantly, the VMScriptFunctions are now preallocated when being added to the list of functions to compile and will be filled in later by the code generator. This allowed the removal of some ugly maintenance code. 2016-10-13 00:53:59 +02:00
Christoph Oelckers
59ed26c0b6 - resorted some of thingdef.cpp's contents into more appropriate files.
- split FinishActor into several functions. While DECORATE can, ZSCRIPT cannot do all this in one go.
- split the state finalization into several class-specific virtual functions.
2016-10-12 20:42:41 +02:00
Christoph Oelckers
b1a83bfd26 - started with cleanup and separation of DECORATE code.
* everything related to scripting is now placed in a subdirectory 'scripting', which itself is separated into DECORATE, ZSCRIPT, the VM and code generation.
 * a few items have been moved to different headers so that the DECORATE parser definitions can mostly be kept local. The only exception at the moment is the flags interface on which 3 source files depend.
2016-10-12 19:22:33 +02:00
Renamed from src/thingdef/thingdef.h (Browse further)