Mercurial Hosting > luan

comparison core/src/luan/impl/ReturnStmt.java @ 659:f1150518c467

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
remove tail recursion
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 05 Apr 2016 20:30:42 -0600
parents 8e8c30b72e9b
children b438a47196bc
comparison
equal deleted inserted replaced
658:e038905512d3 659:f1150518c467
12 ReturnStmt(Expressions expressions) { 12 ReturnStmt(Expressions expressions) {
13 this.expressions = expressions; 13 this.expressions = expressions;
14 } 14 }
15 15
16 @Override public void eval(LuanStateImpl luan) throws LuanException { 16 @Override public void eval(LuanStateImpl luan) throws LuanException {
17 if( !(expressions instanceof FnCall) ) { 17 luan.returnValues = expressions.eval(luan);
18 luan.returnValues = expressions.eval(luan);
19 } else { // tail call
20 FnCall tailFnCall = (FnCall)expressions;
21 LuanFunction tailFn = Luan.checkFunction( tailFnCall.fnExpr.eval(luan) );
22 luan.returnValues = tailFnCall.args.eval(luan);
23 if( tailFn instanceof Closure ) {
24 luan.tailFn = (Closure)tailFn;
25 } else {
26 luan.returnValues = tailFn.call(luan,Luan.array(luan.returnValues));
27 }
28 }
29 if( throwReturnException ) 18 if( throwReturnException )
30 throw new ReturnException(); 19 throw new ReturnException();
31 } 20 }
32 } 21 }