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

..

assignment

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

bool

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

break

For loops!

2013-12-24 21:04:11 -08:00

class

Clean up the root of the class/metaclass hierarchy.

2013-12-21 20:44:37 -08:00

closure

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

comments

Better handling for lexing errors.

2013-12-23 14:51:06 -08:00

constant

Collapse duplicate constants and check for overflow.

2013-12-23 15:08:47 -08:00

constructor

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

field

Fields in closures.

2013-12-23 11:17:40 -08:00

for

For loops!

2013-12-24 21:04:11 -08:00

function

Allow empty blocks.

2013-12-29 10:46:21 -08:00

inheritance

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

io

Make IO.write() call toString on its argument.

2013-12-22 11:50:00 -08:00

list

Make IO.write() call toString on its argument.

2013-12-22 11:50:00 -08:00

method

Start adding support for runtime errors:

2014-01-01 13:25:24 -08:00

number

Start adding support for runtime errors:

2014-01-01 13:25:24 -08:00

object

Make IO.write() call toString on its argument.

2013-12-22 11:50:00 -08:00

return

Allow statement bodies for flow control.

2013-12-24 10:27:48 -08:00

setter

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

string

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

super

Get rid of unused DUP instruction.

2013-12-23 11:37:47 -08:00

this

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

variable

Allow variables without initializers.

2013-12-22 18:47:58 -08:00

while

For loops!

2013-12-24 21:04:11 -08:00

and.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

empty_block.wren

Allow empty blocks.

2013-12-29 10:46:21 -08:00

for.wren

For loops!

2013-12-24 21:04:11 -08:00

grammar.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

if.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

is.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

long_function.wren

Use growable buffers for bytecode and strings.

2013-12-27 07:22:43 -08:00

long_string.wren

Use growable buffers for bytecode and strings.

2013-12-27 07:22:43 -08:00

no_trailing_newline.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

null_type.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

null.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

or.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

semicolon.wren

Make IO a static class instead of a singleton.

2013-12-21 19:25:09 -08:00

unexpected_character.wren

Better handling for lexing errors.

2013-12-23 14:51:06 -08:00