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243 Commits (5915f79960767e367b137623185db2e9138cbc8d)

Author SHA1 Message Date
Nicolas Hake 021a6e89f5 Implement direct execution of whole function definitions 
This implements the changes made in c6e4bfd on the AST-based parser.
 2016-10-19 14:20:47 +02:00
Nicolas Hake 9caaf1e298 Aul: Split out error handling into a separate class for easier testing 
By using an extern error handler in the script engine, we can mock that
handler and make sure something that should fail actually does, instead
of having to parse log messages.
 2016-10-19 14:20:41 +02:00
Nicolas Hake eca8f2cce8 Aul: && returns either parameter, not bool 2016-05-13 16:20:17 +02:00
Nicolas Hake 43c6f946dd Aul: Split assignment op from standard BinOp 
Assignment was special-cased everywhere, so it can just as well get a
separate AST node.
 2016-05-13 13:50:29 +02:00
Nicolas Hake daf3424e63 Delete some commented-out legacy function parameters 2016-05-13 13:14:23 +02:00
Nicolas Hake 092a23c2f7 Aul: Parse scripts into an AST, then generate bytecode from that 
This commit contains a fairly substantial rewrite of the C4Script code
generator. Instead of generating bytecode while parsing the script,
we're now parsing the script into a syntax tree, and have any further
processing happen on that instead of the raw source.

At this time, the code generator emits the same bytecode as the old
parser; there are several optimization opportunities that arise from the
new possibility to emit code out of order from its specification by the
author.

Compared to the old compiler, this one is still rather deficient when
dealing with incorrect code; it's also not emitting several warnings
that used to be diagnosed.
 2016-05-12 19:43:48 +02:00
Nicolas Hake 10abb1bbdb Remove unused C4AUL_CodeBufSize 2016-05-11 17:15:47 +02:00
Nicolas Hake a100b93e7f DEBUG_BYTECODE_DUMP: Allow setting from build system 2016-05-11 17:15:47 +02:00
Nicolas Hake 16641d3841 C4AulScriptFunc::DumpByteCode: properly align BCC names 
The old code just appended eight spaces when the type of the BCC was
shorter than eight chars.
 2016-05-11 17:15:47 +02:00
Nicolas Hake 33f7fb935f C4AulCompiler: Rename iStack to stack_height 2016-05-09 12:33:51 +02:00
Nicolas Hake 41000a8f9a C4AulCompiler: Rename pLoopStack to active_loops 2016-05-09 12:21:33 +02:00
Nicolas Hake d0dbe05876 C4AulCompiler: Rename fJump to at_jump_target 
You have no idea how much I hate systems hungarian.
 2016-05-09 12:21:33 +02:00
Nicolas Hake 7a135a060f C4AulParse: Take GetTokenName out of public interface 2016-05-09 12:21:33 +02:00
Nicolas Hake 0a3b31e735 C4AulParse::AddVarAccess: Move to C4AulCompiler 2016-05-09 12:21:33 +02:00
Nicolas Hake 792e12adad C4AulCompiler: Split into separate file 2016-05-09 12:21:33 +02:00
Nicolas Hake c8d71d47c0 C4CodeGen: Rename to C4AulCompiler 
I need to split up C4CodeGen into smaller parts, and having the bit that
actually generates the bytecode named C4CodeGenCodeGen would be silly.
 2016-05-09 12:21:33 +02:00
Günther Brammer 9741af42fd Replace all usages of the old local variables list with properties 2016-05-01 00:28:37 +02:00
Günther Brammer 7792acdff0 Script: Check for functions before keywords 
This unifies the lookup for local variables and functions. Its slightly
awkward that global functions can overload if and Par now, but local
variables already could.
 2016-05-01 00:28:37 +02:00
Günther Brammer 30f7457d89 Remove unused macros leftover from removed script features 2016-05-01 00:28:37 +02:00
Günther Brammer b8f2d0ca87 Script: Repeat the parser error message when executing a broken function 2016-05-01 00:28:37 +02:00
Günther Brammer 17b18da26c Make bytecode dump work again 
Dumping the bytecode before adding EOFN while depending on that to signal
the end isn't such a hot idea.
 2016-05-01 00:28:37 +02:00
Günther Brammer 4092911349 Move code generation into its own class 2016-04-28 03:25:47 +02:00
Günther Brammer b00b8554ab Merge branch script 2016-04-28 03:25:44 +02:00
Günther Brammer d45ac946fe Add C4AulParseError constructor and cease reusing it for warnings 
The nontrivial code that formats the position is now a function of
C4AulParse used by both warnings and errors.
 2016-04-28 02:59:12 +02:00
Nicolas Hake a8f4bd3960 C4AulParseError: Avoid the second string parameter 
While I'm not a big fan of hiding flow control in a function, Error()
handles formatting and saves me from calling FormatString().getData() a
lot.
 2016-04-28 02:59:12 +02:00
Günther Brammer 525cdc11a3 Deduplicate calculation of the relative stack position of local variables 2016-04-28 02:59:11 +02:00
Günther Brammer 071feaa78f Deduplicate loop control handling in the script parser 2016-04-28 02:59:11 +02:00
Günther Brammer e22ca51f72 Don't leak references to Strings on script errors (#583) 2016-04-24 19:40:27 +02:00
Günther Brammer 5fbac346d3 Incompatible type warnings work for parameters with type declarations 2016-04-24 19:40:27 +02:00
Nicolas Hake 19a3d43558 Fix definition of explicitly sized enums 2016-04-24 15:20:28 +02:00
Nicolas Hake caf44e2473 Remove specious space from Aul operator table 2016-04-24 14:01:23 +02:00
Nicolas Hake 770be2dafe Aul: Allow AB_ERR to carry more detailed error information 2016-04-24 14:01:23 +02:00
Nicolas Hake 367f58b1cc C4AulParseError: Enable creation from host and source pointer 
Instead of having a C4AulParseError constructor read the location data
from the parse state, allow explicit construction from a known location.
 2016-04-24 14:01:23 +02:00
Nicolas Hake cfdb1142b8 Move C4AulParse declaration into separate header 2016-04-24 14:01:23 +02:00
Nicolas Hake aa06b3b6f6 C4AulParse: Drop unused ATT_STAR 
ATT_STAR has been rolled into ATT_OPERATOR and is no longer used
anywhere.
 2016-04-07 20:52:31 +02:00
Nicolas Hake f963a398aa Define NORETURN annotation for MSVC 2016-04-07 20:52:28 +02:00
Nicolas Hake eabca223f5 Update all copyright notices for 2016 2016-04-03 20:24:42 +02:00
Nicolas Hake 493c276126 Rewrite header inclusions to #include "path/to/file.h" style 2016-04-03 20:24:42 +02:00
Günther Brammer b54ddc7663 Merge branch script 2016-03-01 03:04:17 +01:00
Günther Brammer 0c0c64642a Remove unused #define in C4AulParse 2016-02-12 17:15:46 +01:00
Günther Brammer fdbad8fe83 Simplify the test for loop end in parameter parsing 
Instead of storing in fDone whether the token is a ')', make that the loop
condition.
 2016-02-02 02:57:50 +01:00
Günther Brammer f1b99aa355 Avoid pushing and popping an unused parameter with ... 2016-02-02 02:57:49 +01:00
Günther Brammer 6a6c0d8b0b Optionally warn about too many parameters in -> calls, too 
While at it, only consult the right function for direct calls, not any
other function with the same name.
 2016-02-02 02:57:49 +01:00
Günther Brammer b2c263bd0e Don't mark the condition of do-while as a jump target without a continue 
In contrast to the other loops, where the condition is always jumped to.
 2016-02-02 02:57:49 +01:00
Günther Brammer 00f013d59e Optimize accessing the same variable as was just now set 2016-02-02 02:57:49 +01:00
Günther Brammer b7eff7f55f Set jump target flag for bytecode added after MakeSetter removed one 
Also avoid removing the original bytecode if it is DUP, LOCALN or GLOBALN.
This way, setting the jump target flag can be avoided in some cases.
 2016-02-02 02:57:49 +01:00
Günther Brammer 532b47ed27 Optimize do; while(!...) from two bytecodes to one 
This revealed that the code for setting Par.i was wrong before, but didn't
matter because the jump target for all CONDN was set afterwards. But the
jumptarget for COND was set directly, and must be adjusted to account for
the bytecode that gets optimized away.
 2016-02-02 02:57:49 +01:00
Günther Brammer 168ac8bb40 Remove pointer to start of variables from function context 
It pointed always to Pars + Func->GetParCount(). The only users were
VARN_CONTEXT, which can be replaced with PARN_CONTEXT that way, and
FOREACH_NEXT, where the parser can do the math and simply give a number
relative to the current stack position, like regular variable usages do.
 2016-02-02 02:57:48 +01:00
Günther Brammer 5bb3d7cb77 Use a null C4ScriptHost to parse DirectExec code 
This mostly makes Parse_Expression use the case for functions in proplists
instead of the other for local variable lookup.
 2016-02-02 02:57:48 +01:00
Günther Brammer 6f98fb2e66 Remove C4AulScript class 
It isn't needed to hold engine functions anymore, because those are just
put into C4PropLists.
 2016-02-02 02:57:47 +01:00