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view src/luan/interp/Block.java @ 31:5cf15507d77e
separate interpreter from interface
git-svn-id: https://luan-java.googlecode.com/svn/trunk@32 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Thu, 13 Dec 2012 02:50:04 +0000 |
parents | 2446c1755d9b |
children | c3eab5a3ce3c |
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package luan.interp; import luan.LuaException; final class Block implements Stmt { final Stmt[] stmts; private final int stackStart; private final int stackEnd; Block(Stmt[] stmts,int stackStart,int stackEnd) { if( stmts.length==0 ) throw new RuntimeException("empty block"); this.stmts = stmts; this.stackStart = stackStart; this.stackEnd = stackEnd; } @Override public void eval(LuaStateImpl lua) throws LuaException { try { for( Stmt stmt : stmts ) { stmt.eval(lua); } } finally { Object[] stack = lua.stack(); for( int i=stackStart; i<stackEnd; i++ ) { stack[i] = null; } } } }