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view core/src/luan/impl/FnDef.java @ 371:e01cddba3433
add manual.html as copy of Lua 5.3 Reference Manual
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Fri, 17 Apr 2015 07:25:51 -0600 |
parents | 5ba136769034 |
children | b48cfa14ba60 |
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package luan.impl; import luan.LuanException; import luan.LuanSource; final class FnDef extends CodeImpl implements Expr { final Stmt block; final int stackSize; final int numArgs; final boolean isVarArg; final UpValue.Getter[] upValueGetters; FnDef(LuanSource.Element se,Stmt block,int stackSize,int numArgs,boolean isVarArg,UpValue.Getter[] upValueGetters) { super(se); this.block = block; this.stackSize = stackSize; this.numArgs = numArgs; this.isVarArg = isVarArg; this.upValueGetters = upValueGetters; fixReturns(block); } private static void fixReturns(Stmt stmt) { if( stmt instanceof ReturnStmt ) { ReturnStmt rs = (ReturnStmt)stmt; rs.throwReturnException = false; } else if( stmt instanceof Block ) { Block b = (Block)stmt; fixReturns( b.stmts[b.stmts.length-1] ); } else if( stmt instanceof IfStmt ) { IfStmt is = (IfStmt)stmt; fixReturns( is.thenStmt ); fixReturns( is.elseStmt ); } } @Override public Object eval(LuanStateImpl luan) throws LuanException { return new Closure(luan,this); } }