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comparison src/luan/interp/Chunk.java @ 21:c93d8c781853

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add functions git-svn-id: https://luan-java.googlecode.com/svn/trunk@22 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Tue, 04 Dec 2012 09:16:03 +0000
parents 09d41f7490a8
children 2446c1755d9b
comparison
equal deleted inserted replaced
20:d85510d92eee 21:c93d8c781853
1 package luan.interp; 1 package luan.interp;
2 2
3 import luan.LuaState; 3 import luan.LuaState;
4 import luan.LuaException; 4 import luan.LuaException;
5 import luan.LuaClosure;
5 6
6 7
7 final class Chunk implements Stmt { 8 public final class Chunk implements Expr {
8 private final Stmt block; 9 public final Stmt block;
9 private final int stackSize; 10 public final int stackSize;
11 public final int numArgs;
10 12
11 Chunk(Stmt block,int stackSize) { 13 Chunk(Stmt block,int stackSize,int numArgs) {
12 this.block = block; 14 this.block = block;
13 this.stackSize = stackSize; 15 this.stackSize = stackSize;
14 } 16 this.numArgs = numArgs;
15 17 Stmt stmt = block;
16 @Override public void eval(LuaState lua) throws LuaException { 18 while( stmt instanceof Block ) {
17 lua.newStack(stackSize); 19 Block b = (Block)stmt;
18 try { 20 if( b.stmts.length==0 )
19 block.eval(lua); 21 break;
20 } finally { 22 stmt = b.stmts[b.stmts.length-1];
21 lua.popStack(); 23 }
24 if( stmt instanceof ReturnStmt ) {
25 ReturnStmt rs = (ReturnStmt)stmt;
26 rs.throwReturnException = false;
22 } 27 }
23 } 28 }
24 29
30 public LuaClosure newClosure(LuaState lua) {
31 return new LuaClosure(this,lua);
32 }
33
34 @Override public Object eval(LuaState lua) {
35 return newClosure(lua);
36 }
37
25 } 38 }