Mercurial Hosting > luan
annotate core/src/luan/impl/UnmExpr.java @ 460:b48cfa14ba60
improve stack trace
author | Franklin Schmidt <fschmidt@gmail.com> |
---|---|
date | Wed, 06 May 2015 14:32:29 -0600 |
parents | bbad2d06f728 |
children | 4723d22062ce |
rev | line source |
---|---|
166
4eaee12f6c65
move luan/interp to impl
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
112
diff
changeset
|
1 package luan.impl; |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
2 |
48
64ecb7a3aad7
rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
46
diff
changeset
|
3 import luan.Luan; |
64ecb7a3aad7
rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
46
diff
changeset
|
4 import luan.LuanFunction; |
64ecb7a3aad7
rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
46
diff
changeset
|
5 import luan.LuanException; |
460 | 6 import luan.LuanElement; |
88
6ca02b188dba
add LuanBit to clean up code;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
49
diff
changeset
|
7 import luan.LuanBit; |
404
d55e873e1f0d
metatables now only apply to tables
Franklin Schmidt <fschmidt@gmail.com>
parents:
171
diff
changeset
|
8 import luan.LuanTable; |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
9 |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
10 |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
11 // unary minus |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
12 final class UnmExpr extends UnaryOpExpr { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
13 |
460 | 14 UnmExpr(LuanElement el,Expr op) { |
15 super(el,op); | |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
16 } |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
17 |
49
8ede219cd111
add WebShell
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
48
diff
changeset
|
18 @Override public Object eval(LuanStateImpl luan) throws LuanException { |
8ede219cd111
add WebShell
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
48
diff
changeset
|
19 Object o = op.eval(luan); |
446
bbad2d06f728
remove automatic conversion from string to number
Franklin Schmidt <fschmidt@gmail.com>
parents:
404
diff
changeset
|
20 if( o instanceof Number ) |
bbad2d06f728
remove automatic conversion from string to number
Franklin Schmidt <fschmidt@gmail.com>
parents:
404
diff
changeset
|
21 return -((Number)o).doubleValue(); |
460 | 22 LuanBit bit = luan.bit(el); |
404
d55e873e1f0d
metatables now only apply to tables
Franklin Schmidt <fschmidt@gmail.com>
parents:
171
diff
changeset
|
23 if( o instanceof LuanTable ) { |
d55e873e1f0d
metatables now only apply to tables
Franklin Schmidt <fschmidt@gmail.com>
parents:
171
diff
changeset
|
24 LuanFunction fn = bit.getHandlerFunction("__unm",(LuanTable)o); |
d55e873e1f0d
metatables now only apply to tables
Franklin Schmidt <fschmidt@gmail.com>
parents:
171
diff
changeset
|
25 if( fn != null ) { |
d55e873e1f0d
metatables now only apply to tables
Franklin Schmidt <fschmidt@gmail.com>
parents:
171
diff
changeset
|
26 return Luan.first(bit.call(fn,"__unm",new Object[]{o})); |
d55e873e1f0d
metatables now only apply to tables
Franklin Schmidt <fschmidt@gmail.com>
parents:
171
diff
changeset
|
27 } |
40
e3624b7cd603
implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
37
diff
changeset
|
28 } |
88
6ca02b188dba
add LuanBit to clean up code;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
49
diff
changeset
|
29 throw bit.exception("attempt to perform arithmetic on a "+Luan.type(o)+" value"); |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
30 } |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
31 } |