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comparison core/src/luan/impl/SetStmt.java @ 171:3dcb0f9bee82

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add core component git-svn-id: https://luan-java.googlecode.com/svn/trunk@172 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Sun, 22 Jun 2014 05:41:22 +0000
parents src/luan/impl/SetStmt.java@4eaee12f6c65
children
comparison
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170:7c792a328a83 171:3dcb0f9bee82
1 package luan.impl;
2
3 import luan.Luan;
4 import luan.LuanException;
5
6
7 final class SetStmt implements Stmt {
8 private final Settable[] vars;
9 private final Expressions expressions;
10
11 SetStmt(Settable var,Expr expr) {
12 this( new Settable[]{var}, expr );
13 }
14
15 SetStmt(Settable[] vars,Expressions expressions) {
16 this.vars = vars;
17 this.expressions = expressions;
18 }
19
20 @Override public void eval(LuanStateImpl luan) throws LuanException {
21 final Object obj = expressions.eval(luan);
22 if( obj instanceof Object[] ) {
23 Object[] vals = (Object[])obj;
24 for( int i=0; i<vars.length; i++ ) {
25 Object val = i < vals.length ? vals[i] : null;
26 vars[i].set(luan,val);
27 }
28 } else {
29 vars[0].set(luan,obj);
30 for( int i=1; i<vars.length; i++ ) {
31 vars[i].set(luan,null);
32 }
33 }
34 }
35
36 }