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Author SHA1 Message Date
Bob Nystrom 074c016c89 Num.floor. 2014-01-07 23:03:25 -08:00
Bob Nystrom e64d8ace9a Ensure upvalue value is initialized. 
Avoids a crash if a GC happens before the upvalue is closed.
 2014-01-07 23:03:15 -08:00
Bob Nystrom 3be059a137 Fix scoping and break statements. 
Variables declared in the loop were not properly disposed of
when you broke out of the loop.
 2014-01-06 08:01:04 -08:00
Bob Nystrom 90a769b6d1 Correctly terminate debug function name. 2014-01-06 07:54:00 -08:00
Bob Nystrom 46e1e7f069 Make string buffer for converting number to string large enough. 2014-01-06 07:53:41 -08:00
Bob Nystrom b979272305 Clean up text handling a bit: 
- Rename IO.write -> IO.print.
- Make IO.write not print a newline.
- Support \u Unicode escapes in strings.
 2014-01-05 12:27:12 -08:00
Bob Nystrom 870f3b8b93 Allow more than 256 methods and constants. 
Class symbol tables now grow on demand, and the relevant
instructions take 16-bit arguments. There's a small perf hit
for this, but only a few percent, which is good.
 2014-01-04 11:08:31 -08:00
Bob Nystrom f82a034b57 Add time to GC tracing. 2014-01-03 13:17:14 -08:00
Bob Nystrom 058c2606b0 Better argument validation for core methods. 2014-01-03 10:47:26 -08:00
Bob Nystrom a89386b4e8 Better argument validation for some list methods. 2014-01-02 07:32:00 -08:00
Bob Nystrom a0c32f2e6e Clean up compiler initialization a bit. 2014-01-02 07:31:31 -08:00
Bob Nystrom e46b4b30b9 Make Buffer "generic". 
This lets us make a growable line-number buffer.
 2014-01-01 22:23:03 -08:00
Bob Nystrom a6fd0b2dd2 Move SymbolTable to wren_utils. 2014-01-01 20:57:58 -08:00
Bob Nystrom b750ece08b Move object freeing over to wren_value. 
That's where allocation is, so it makes sense.
 2014-01-01 13:31:19 -08:00
Bob Nystrom 48db3a9620 Start adding support for runtime errors: 
- Primitives can now signal an error.
- An error prints a callstack and ends the current (and right 
  now only) fiber.
- Arithmetic operators error if the operand is not a number.
- Real error for method not found.
- Associate source file name, and method names with functions.
- Debug line number info for functions.

Unfortunately, this regresses perf on fib about 15%, mostly
because of the better checking in arithmetic ops.

There's still a bunch of clean up to do, but this is a big step
in the right direction.
 2014-01-01 13:25:24 -08:00
Bob Nystrom 45456733aa Fix a few GC bugs. 
Adding a to a symbol table can trigger a GC, so we need to make
sure we don't do that while sitting on an unpinned object.
 2013-12-30 07:30:50 -08:00
Bob Nystrom c8fe27d6c4 Allow empty blocks. 2013-12-29 10:46:21 -08:00
Bob Nystrom a9323376ec "native" -> "foreign". 2013-12-29 10:14:38 -08:00
Bob Nystrom 63d1255566 Start sketching in the FFI. 2013-12-29 10:06:35 -08:00
Bob Nystrom 667d393fbb Write a bunch of docs. 2013-12-28 09:37:41 -08:00
Bob Nystrom afdcafcecb Remove explicit calls to free() and malloc(). 2013-12-27 09:07:35 -08:00
Bob Nystrom a8c725ea3f Use growable buffers for bytecode and strings. 
Ensures the compiler can handle long chunks of code and strings.
 2013-12-27 07:22:43 -08:00
Bob Nystrom 3506a39e27 Pass in all data when creating function. 2013-12-26 17:28:33 -08:00
Bob Nystrom 24686eb4be First step towards making FnObjs smarter about size. 
Currently, they have a hardcoded number of constants and 
bytecodes. That wastes memory in most cases and fails 
catastrophically when there is too much bytecode.

To fix this, we should use growable buffers for both during
compilation and then only create the FnObj when done compiling.

This moves a bunch of stuff around and gets it to the point
where functions are created at the end of compilation. It
doesn't yet size functions appropriately, but all tests are
passing, so this is a good checkpoint.
 2013-12-26 16:58:03 -08:00
Bob Nystrom 350c0194b6 "unsigned char" -> "uint8_t". 2013-12-25 16:31:30 -08:00
Bob Nystrom e62bccd7f2 Inline the bytecode array in ObjFn. 2013-12-25 16:19:35 -08:00
Bob Nystrom 8c4a58a0a3 Make CallFrame and Method use Obj* for functions. 
There's no point in packing it in a Value since it will always
be an ObjFn or ObjClosure. Leaving it an Obj* is a bit faster.

Also fixed a bug where it was freeing the closure's flexible
array of upvalues.
 2013-12-25 16:12:07 -08:00
Bob Nystrom ba0f39a5e0 Tweak README. 2013-12-25 15:03:17 -08:00
Bob Nystrom 507e89d3b3 Range operators! 
Added ".." and "..." infix operators. Num implements them to
return Range objects. Those in turn implement the iterator
protocol, so now numeric for loops are easy:

    for (i in 1..10) { ... }

I also cleaned up the Wren benchmarks to use this.

In the process, I discovered the method_call benchmark really
just showed loop peformance, so I unrolled the loops in all of
the languages to stress method calls.
 2013-12-25 15:01:45 -08:00
Bob Nystrom 2b65e47747 Use getNumArguments() in method bind. 2013-12-24 22:10:30 -08:00
Bob Nystrom e6e7b2594c For loops! 2013-12-24 21:04:11 -08:00
Bob Nystrom 1e0401bfc1 Allow statement bodies for flow control. 
This means this works now:

  if (foo) return bar
 2013-12-24 10:27:48 -08:00
Bob Nystrom 8c85232b90 Break statements. 2013-12-24 10:15:50 -08:00
Bob Nystrom a30a5daa29 Clean out a few TODOs. 2013-12-23 15:38:00 -08:00
Bob Nystrom 5a2fde0c2c Collapse duplicate constants and check for overflow. 2013-12-23 15:08:47 -08:00
Bob Nystrom c8cb0be816 Better handling for lexing errors. 2013-12-23 14:51:06 -08:00
Bob Nystrom 1503e74233 Get rid of unused DUP instruction. 2013-12-23 11:37:47 -08:00
Bob Nystrom 9235a7e38f Fields in closures. 2013-12-23 11:17:40 -08:00
Bob Nystrom c0169896e6 Get rid of ResolvedName. 2013-12-22 20:53:35 -08:00
Bob Nystrom ad1fcf66bc Superclass calls in closures. 2013-12-22 20:46:12 -08:00
Bob Nystrom 3c8b4c009f Allow variables without initializers. 2013-12-22 18:47:58 -08:00
Bob Nystrom 034fec6eaa Make fibers real objects. 2013-12-22 14:31:33 -08:00
Bob Nystrom 7625de7536 Make ip an actual pointer. 2013-12-22 13:46:13 -08:00
Bob Nystrom 7868287f89 Make IO.write() call toString on its argument. 2013-12-22 11:50:00 -08:00
Bob Nystrom 2ec01c558f Clean up the root of the class/metaclass hierarchy. 2013-12-21 20:44:37 -08:00
Bob Nystrom 6c3aa85228 Make IO a static class instead of a singleton. 2013-12-21 19:25:09 -08:00
Bob Nystrom 24a6f4cd8c Closing over "this". 2013-12-21 15:55:08 -08:00
Bob Nystrom 76ac818eaf Subscript setters. 2013-12-21 09:37:59 -08:00
Bob Nystrom 6fdcf800a8 Do a bit more documentation. 2013-12-21 09:15:30 -08:00
Bob Nystrom f2b036420d Fix a bunch of test TODOs. 
- Added a bunch of tests.
- Removed some TODOs for stuff that's already done.
- Made list literals handle newlines better.
 2013-12-20 12:42:11 -08:00
Bob Nystrom 315ed1c425 Make heap usage configurable. 2013-12-20 07:41:35 -08:00
Bob Nystrom e83d0bb360 Setters! 2013-12-20 07:05:31 -08:00
Bob Nystrom 61e745d548 Bump default heap size up. 
This makes the binary_trees benchmark much faster.
 2013-12-20 07:05:13 -08:00
Bob Nystrom b937597ea7 Make benchmarks score based instead of time based. 2013-12-20 07:04:04 -08:00
Bob Nystrom f9099791a1 Add another test for constructor syntax. 2013-12-19 09:10:45 -08:00
Bob Nystrom 4d67f2270a Use more conventional syntax for constructors. 
They are now invoked like "new Foo".
Also, superclass constructors are now much less semantically
and syntactically weird. Since the instance is created before
any constructor is called, there's no point in time where the
instance isn't there.
 2013-12-19 07:02:27 -08:00
Bob Nystrom b880b17db9 Add TODO about resolving ctors. 2013-12-18 07:39:46 -08:00
Bob Nystrom e7cf8ffe2e Make method_call benchmark use inheritance. 
This also fixes a bug where constructors weren't being bound
correctly, and eliminates some unneeded instructions when
compiling ifs.

I also tweaked the other method_call languages to match Wren's.
Since Wren needs to do a super call to get to the parent _count,
the other languages do now too.

This is nice too because it means we're benchmarking super 
calls.
 2013-12-18 07:37:41 -08:00
Bob Nystrom caafa96252 More work on docs. 2013-12-17 09:39:26 -08:00
Bob Nystrom 271fcec81b Start getting superclass constructors working. 
This also means the metaclass inheritance hierarchy parallels
the regular inheritance chain so that the subclass can find
the superclass constructor.
 2013-12-17 09:39:05 -08:00
Bob Nystrom 70e548657e Don't allow "super" outside of methods. 2013-12-15 22:08:40 -08:00
Bob Nystrom 5fb2d5af71 Use flexible array for upvalues in closure. 2013-12-15 22:02:22 -08:00
Bob Nystrom 9e67cd3220 Use stdbool.h and bool for booleans. 2013-12-14 23:41:23 -08:00
Bob Nystrom f5e4f95069 Write some more scope edge case tests. 2013-12-14 16:36:19 -08:00
Bob Nystrom 7fe60499db Get rid of my name from TODOs. Anyone can do them. 2013-12-14 15:28:18 -08:00
Bob Nystrom 5c807c0ec5 Track memory during deallocation correctly. 
It used to subtract the number of bytes during deallocation, but
that required knowing the size of an object at free time. That
isn't always available. The old code could read a freed object
while doing this. Bad!

Instead, this tracks how much memory is still being used by
marked objects. It's correct, and is also a bit less code and
faster.
 2013-12-14 14:17:16 -08:00
Bob Nystrom 3fd7fa56fb Inline wrenObjectToValue(). 
Seems to give a slight speed bump. Inlining the wrenIs___
functions doesn't seem to help (may make it a bit worse.)
 2013-12-14 11:34:49 -08:00
Bob Nystrom 088b1be98c Clean up config #defines. 2013-12-14 11:06:54 -08:00
Bob Nystrom 165cf29db0 Special "constructor methods" -> "new" instruction. 
This simplifies the call instruction a bit (and is overall
less code).
 2013-12-13 11:32:47 -08:00
Bob Nystrom d54bca3067 Get basic superclass method calls working. 2013-12-13 08:37:49 -08:00
Bob Nystrom 4957728893 Move OP_CLOSURE and OP_LIST down. 
Since they're less frequently used, pushing them down speeds
things up a little bit.
 2013-12-13 06:47:34 -08:00
Bob Nystrom 5aaaa33552 Revise benchmarks: 
- Ditch JS since it's in a different league.
- Make binary_trees and fib run faster.
- Compare using best time instead of mean.
 2013-12-12 16:59:57 -08:00
Bob Nystrom 8e71660ce6 Reorder the method types. 
Seems to slightly improve perf.
 2013-12-12 07:39:27 -08:00
Bob Nystrom 4ba5c38bbf Generate default constructors at compile time. 
Also re-ordered a few of the cases in the interpret loop. 
Removing a bit of code from CODE_CLASS and CODE_CALL triggered
some branch alignment issues which had a negative perf impact.
The new ordering seems to cancel that out.
 2013-12-12 07:34:16 -08:00
Bob Nystrom e191424a70 Make "super" a reserved word. 2013-12-11 08:02:17 -08:00
Bob Nystrom 6e16df08f0 Add note about default constructor. 2013-12-11 08:00:25 -08:00
Bob Nystrom 71c26c6d89 Add support for just control which language benchmarks are run. 2013-12-10 23:02:24 -08:00
Bob Nystrom 510e3fc383 Add test for default constructor. 2013-12-10 21:58:02 -08:00
Bob Nystrom 03c7b01b0f Start writing performance doc. 2013-12-10 21:51:58 -08:00
Bob Nystrom c1cfe1b9f6 Handle inherited fields correctly. 2013-12-10 16:13:25 -08:00
Bob Nystrom 1e2449893e Add baseline comparison to benchmark script. 
This way, I can track performance improvements and regressions.
 2013-12-07 22:15:25 -08:00
Bob Nystrom 42b04c6c90 Fix bug in loops. 
It was still popping the stack for the body even though loop
bodies are statements now.
 2013-12-07 18:47:40 -08:00
Bob Nystrom eb1e5b48d6 Fix up benchmarks and add method call one. 2013-12-07 18:43:39 -08:00
Bob Nystrom 3f24515496 Don't allow method names to overflow. 2013-12-06 20:09:43 -08:00
Bob Nystrom 6a0d550562 Bitwise ~ operator. 2013-12-04 22:09:31 -08:00
Bob Nystrom 7355dd3dc7 Fill in some more basic syntax docs. 2013-12-04 21:51:23 -08:00
Bob Nystrom c91fcd12cc Treat ";" like newlines. 2013-12-04 19:12:21 -08:00
Bob Nystrom 8521d5ad79 Bunch more work on docs. 2013-12-04 07:46:41 -08:00
Bob Nystrom 047cfacede Include "include" directory in source code metrics. 2013-12-04 07:46:23 -08:00
Bob Nystrom 157944aa27 Get closures working! 
In the process, I had to change the grammar. There is now a strong
separation between statements and expressions. The code was just wrong
before when it popped locals at the end of a block scope because there
could be temporaries on the stack if the block was in expression
position. This fixes that.

Still need to implement closing over `this`.
 2013-12-04 07:43:50 -08:00
Bob Nystrom c14b115c02 Use char* instead of offsets for tokens. 
Simplifies a bunch of code that works with token strings.
 2013-12-01 15:22:24 -08:00
Bob Nystrom e4043d69b4 Unify code for ending compiler. 
There's now a single code path for the end of a chunk of bytecode, so
we can eventually put code there for capturing closures.
 2013-12-01 14:59:56 -08:00
Bob Nystrom 19811143a0 Always use provided allocator for allocation. 2013-12-01 10:22:32 -08:00
Bob Nystrom 9188c00bc0 Start adding navigation to the docs. 2013-12-01 09:54:51 -08:00
Bob Nystrom d2e82d8967 Clean up parsing a bit. 2013-12-01 00:04:46 -08:00
Bob Nystrom 60c97b5c2f Make sure we don't go over the maximum number of locals. 2013-11-30 18:51:27 -08:00
Bob Nystrom 88852960ca Handle local variable shadowing. 2013-11-30 18:28:01 -08:00
Bob Nystrom 74c414937c Add JS version of binary tree benchmark. 2013-11-29 20:25:00 -08:00
Bob Nystrom f6c9848706 Ignore scratch script. 2013-11-29 16:20:44 -08:00
Bob Nystrom edb9032052 Get binary_trees benchmark working. 
Wren is actually doing well in it:

wren      mean: 1.9441 median: 1.9428 std_dev: 0.0260
lua       mean: 3.5992 median: 3.6033 std_dev: 0.0156
python    mean: 3.6667 median: 3.7097 std_dev: 0.1340
ruby      mean: 1.3941 median: 1.3914 std_dev: 0.0091
 2013-11-29 16:19:13 -08:00