Commit Graph

31 Commits

Author SHA1 Message Date
Ian Farmer
6d0e9bb566 Add some helper methods:
(1) getKeys() in LTable is now public. It provides a convenient interface
    to access the table's elements from Java instead of Lua.
(2) LString.toInputStream produces an instance of InputStream from which
    the string's bytes can be read.
2007-09-12 05:22:30 +00:00
Ian Farmer
aeafca11b6 Change LString to use an array of bytes instead of wrapping Java's String.
This brings our implementation more in line with regular C Lua.
2007-09-10 06:27:54 +00:00
Ian Farmer
aa44eedf4b Allow metatable operations on values of all types, and use the metatable
on strings as the string package, so that string functions can be called
with self (:) syntax. Autoload test case now inexplicably fails more,
but it was already broken.
2007-09-08 20:54:40 +00:00
Ian Farmer
0f81c4deaf Fix typo and add TODO comment. 2007-09-03 06:00:37 +00:00
Ian Farmer
49bcc0d2f8 Fix a bug where "base" was not set correctly for metatable operations. 2007-09-03 05:53:55 +00:00
Ian Farmer
b8571b93f9 New implementation for Lua tables. Does not use Vector or Hashtable, instead
uses plain Java arrays directly to keep heap allocation to a minimum.
Includes some unit tests that seem to indicate the basic operations are
correct. However, the following things are not implemented:

* Shrinking the capacity when elements are removed
* Optimal storage of each element in array vs. hash when entries are
  added out of order. A junit test case is there for this.
2007-09-03 00:38:38 +00:00
James Roseborough
5fb097d107 Fix varargs handling 2007-08-02 03:00:46 +00:00
James Roseborough
80677e9a16 Let Nil be converted to int, but other values cannot. 2007-08-01 06:16:28 +00:00
James Roseborough
01c5595fd6 Let luaAsInt() return sensible values for non-numeric data. 2007-08-01 06:11:43 +00:00
James Roseborough
32dcbaca3a Make modulo arithmetic conform to lua rules for negative values. 2007-08-01 04:57:12 +00:00
Ian Farmer
737c5e2855 Various changes:
(1) New lua compatibility bindings, including select() and math functions
(2) fix some VM bugs
(3) fix some table bugs, and attempt to restore metatable functionality.
2007-08-01 04:15:27 +00:00
James Roseborough
7cd3195bcd Add guard to prevent null values from being put on stack 2007-07-30 04:53:58 +00:00
Christopher Colby
b9fdb731fe optimization for tables that include sequential integral indices starting with 0.
commented out: a more sophisticated (but space-consuming) optimization
that accounts for arbitrary starting index, stride, and direction (increasing/decreasing).

commented out some table metatable stuff that was wrong.  metatables
need to be implemented properly.
2007-07-24 06:22:07 +00:00
James Roseborough
8bf4c82a12 Rework the main API"s that implement the calling convention. Provide utility methods to get arguments that were supplied, and provide return values. Add a VM interface to clarify the relationship between the VM, things that call the VM, and things that are called by the VM. Make the code more closely aligned with the C++ version. 2007-07-24 05:06:10 +00:00
Ian Farmer
ee5007e718 Add implicit LString to number coercions. 2007-07-22 06:20:14 +00:00
Ian Farmer
2a64db32b5 Add last Lua type: userdata. Changed LInstance to inherit from LUserData,
and changed instanceof/casts to LInstance to use LUserData instead. This
should enable various add-ons to be compatible without knowing much, or
anything, about each other.
2007-07-17 04:04:18 +00:00
Ian Farmer
635f127cd0 Add new built-in function type() that returns the name of the type of
the given value as a string. Includes test case.
2007-07-16 02:37:08 +00:00
James Roseborough
7aab64e6d3 Allow null values in arguments to pushCall, expose the underlying storage in LTable to simplify add-ons until the lTable is finished. 2007-07-02 14:39:17 +00:00
James Roseborough
c8e1934916 Refactor call stack and its use throughout. CallFrame now does all bytecode processing, and the callframe is reinitialized anytime something might have changed, like a function call. 2007-06-27 06:43:33 +00:00
James Roseborough
93fc4699a9 Type coercion for luajava package, make luajava an "addon" 2007-06-24 15:04:19 +00:00
James Roseborough
99077764ac Fix basic class processing via metatables. Make print output more closely match that produces by C interpreter 2007-06-19 04:25:34 +00:00
James Roseborough
54927db2fc Implement most of metatables 2007-06-17 02:58:40 +00:00
James Roseborough
5d3c86e552 Partial implementation of metatables. 2007-06-16 15:31:27 +00:00
James Roseborough
7449605d56 Improve table processing when table lookup fails. 2007-06-16 04:42:20 +00:00
James Roseborough
be20581731 Improve call stack handling to prepare for propert tail call handling. 2007-06-15 06:41:40 +00:00
James Roseborough
19bd995ba6 Enhance binary compare operators, especially equals, to more closely match what standard lua does. 2007-06-14 04:58:09 +00:00
James Roseborough
da6f63bb3d Fix calling convention by managing top of stack and adjusting on way in and out of function calls. 2007-06-11 05:51:19 +00:00
James Roseborough
05cfdaa33b Improve calling convention handling when the number of arguments doesn't match the expected number, and the number of return values doesn't match those needed. 2007-06-11 04:30:03 +00:00
James Roseborough
de763e0a1e Support for iterator-style for loops, and "pairs" builting function 2007-06-10 22:53:09 +00:00
James Roseborough
e1e6625aa1 Add binary compares, some unary ops, fix binary arithmetic, add plain for loop. 2007-06-10 19:49:47 +00:00
James Roseborough
70dfc20f57 Initial draft of interpreter. Lua compiled "chunks" can be unmarshalled. Approximately half of bytecodes implemented in some form or another. 2007-06-08 05:11:37 +00:00