Mercurial Hosting > luan
annotate src/luan/interp/AddExpr.java @ 40:e3624b7cd603
implement stack trace
git-svn-id: https://luan-java.googlecode.com/svn/trunk@41 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
---|---|
date | Fri, 21 Dec 2012 10:45:54 +0000 |
parents | 8a57ebfdfd78 |
children | 57054fa43189 |
rev | line source |
---|---|
2
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
1 package luan.interp; |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
2 |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
3 import luan.Lua; |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
4 import luan.LuaNumber; |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
5 import luan.LuaException; |
40
e3624b7cd603
implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
37
diff
changeset
|
6 import luan.LuaSource; |
2
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
7 |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
8 |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
9 final class AddExpr extends BinaryOpExpr { |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
10 |
40
e3624b7cd603
implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
37
diff
changeset
|
11 AddExpr(LuaSource.Element se,Expr op1,Expr op2) { |
e3624b7cd603
implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
37
diff
changeset
|
12 super(se,op1,op2); |
2
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
13 } |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
14 |
31
5cf15507d77e
separate interpreter from interface
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
15 @Override public Object eval(LuaStateImpl lua) throws LuaException { |
35
e51906de0f11
implement metatables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
31
diff
changeset
|
16 Object o1 = op1.eval(lua); |
e51906de0f11
implement metatables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
31
diff
changeset
|
17 Object o2 = op2.eval(lua); |
e51906de0f11
implement metatables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
31
diff
changeset
|
18 LuaNumber n1 = Lua.toNumber(o1); |
e51906de0f11
implement metatables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
31
diff
changeset
|
19 LuaNumber n2 = Lua.toNumber(o2); |
e51906de0f11
implement metatables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
31
diff
changeset
|
20 if( n1 != null && n2 != null ) |
e51906de0f11
implement metatables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
31
diff
changeset
|
21 return new LuaNumber( n1.value() + n2.value() ); |
40
e3624b7cd603
implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
37
diff
changeset
|
22 return arithmetic(lua,"__add",o1,o2); |
2
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
23 } |
4da26b11d12a
start interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
24 } |