Mercurial Hosting > luan
diff core/src/luan/impl/TryStmt.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/TryStmt.java@4eaee12f6c65 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/core/src/luan/impl/TryStmt.java Sun Jun 22 05:41:22 2014 +0000 @@ -0,0 +1,30 @@ +package luan.impl; + +import luan.Luan; +import luan.LuanException; + + +final class TryStmt implements Stmt { + private final Stmt tryBlock; + private final int iExceptionVar; + private final Stmt catchBlock; + + TryStmt(Stmt tryBlock,int iExceptionVar,Stmt catchBlock) { + this.tryBlock = tryBlock; + this.iExceptionVar = iExceptionVar; + this.catchBlock = catchBlock; + } + + @Override public void eval(LuanStateImpl luan) throws LuanException { + try { + tryBlock.eval(luan); + } catch(LuanException e) { + try { + luan.stackSet( iExceptionVar, e ); + catchBlock.eval(luan); + } finally { + luan.stackClear(iExceptionVar,iExceptionVar+1); + } + } + } +}