Mercurial Hosting > luan
diff core/src/luan/impl/SetStmt.java @ 171:3dcb0f9bee82
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> |
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date | Sun, 22 Jun 2014 05:41:22 +0000 |
parents | src/luan/impl/SetStmt.java@4eaee12f6c65 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/core/src/luan/impl/SetStmt.java Sun Jun 22 05:41:22 2014 +0000 @@ -0,0 +1,36 @@ +package luan.impl; + +import luan.Luan; +import luan.LuanException; + + +final class SetStmt implements Stmt { + private final Settable[] vars; + private final Expressions expressions; + + SetStmt(Settable var,Expr expr) { + this( new Settable[]{var}, expr ); + } + + SetStmt(Settable[] vars,Expressions expressions) { + this.vars = vars; + this.expressions = expressions; + } + + @Override public void eval(LuanStateImpl luan) throws LuanException { + final Object obj = expressions.eval(luan); + if( obj instanceof Object[] ) { + Object[] vals = (Object[])obj; + for( int i=0; i<vars.length; i++ ) { + Object val = i < vals.length ? vals[i] : null; + vars[i].set(luan,val); + } + } else { + vars[0].set(luan,obj); + for( int i=1; i<vars.length; i++ ) { + vars[i].set(luan,null); + } + } + } + +}