Mercurial Hosting > luan
view src/luan/interp/GenericForStmt.java @ 109:219e05867366
remove NumericForStmt;
add BasicLib.range();
git-svn-id: https://luan-java.googlecode.com/svn/trunk@110 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Fri, 23 May 2014 04:30:29 +0000 |
parents | 6ca02b188dba |
children | 2428ecfed375 |
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package luan.interp; import luan.Luan; import luan.LuanException; import luan.LuanFunction; import luan.LuanSource; import luan.LuanBit; final class GenericForStmt extends CodeImpl implements Stmt { private final int iVars; private final int nVars; private final Expr iterExpr; private final Stmt block; GenericForStmt(LuanSource.Element se,int iVars,int nVars,Expr iterExpr,Stmt block) { super(se); this.iVars = iVars; this.nVars = nVars; this.iterExpr = iterExpr; this.block = block; } @Override public void eval(LuanStateImpl luan) throws LuanException { LuanFunction iter = luan.bit(se).checkFunction( iterExpr.eval(luan) ); LuanBit bit = luan.bit(iterExpr.se()); String name = iterExpr.se().text(); try { while(true) { Object[] vals = bit.call(iter,name); if( vals.length==0 || vals[0]==null ) break; for( int i=0; i<nVars; i++ ) { luan.stackSet( iVars+i, i < vals.length ? vals[i] : null ); } block.eval(luan); } } catch(BreakException e) { } finally { luan.stackClear(iVars,iVars+nVars); } } }