Mercurial Hosting > luan
annotate src/luan/LuaState.java @ 22:1e37f22a34c8
proper tail calls
git-svn-id: https://luan-java.googlecode.com/svn/trunk@23 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
---|---|
date | Wed, 05 Dec 2012 09:03:50 +0000 |
parents | c93d8c781853 |
children | 7ee247560db5 |
rev | line source |
---|---|
3
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
1 package luan; |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
2 |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
3 |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
4 public class LuaState { |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
5 private final LuaTable env = new LuaTable(); |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
6 |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
7 public LuaTable env() { |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
8 return env; |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
9 } |
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
10 |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
11 |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
12 private static class LuaStack { |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
13 final LuaStack previousStack; |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
14 final Object[] a; |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
15 |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
16 LuaStack( LuaStack previousStack, int stackSize) { |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
17 this.previousStack = previousStack; |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
18 this.a = new Object[stackSize]; |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
19 } |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
20 } |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
21 |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
22 private LuaStack stack = null; |
21
c93d8c781853
add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
17
diff
changeset
|
23 public Object[] returnValues; |
22
1e37f22a34c8
proper tail calls
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
21
diff
changeset
|
24 public LuaClosure tailFn; |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
25 |
21
c93d8c781853
add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
17
diff
changeset
|
26 Object[] newStack(int stackSize) { |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
27 stack = new LuaStack(stack,stackSize); |
21
c93d8c781853
add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
17
diff
changeset
|
28 return stack.a; |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
29 } |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
30 |
21
c93d8c781853
add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
17
diff
changeset
|
31 void popStack() { |
22
1e37f22a34c8
proper tail calls
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
21
diff
changeset
|
32 returnValues = LuaFunction.EMPTY_RTN; |
1e37f22a34c8
proper tail calls
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
21
diff
changeset
|
33 tailFn = null; |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
34 stack = stack.previousStack; |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
35 } |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
36 |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
37 public Object[] stack() { |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
38 return stack.a; |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
39 } |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
3
diff
changeset
|
40 |
3
7a2cdbc5767f
add LuaState
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
41 } |