public override Expression VisitKeywordMessageSequence(Compiler.SemanticNodes.KeywordMessageSequenceNode node)
{
Expression expr = this.InlineMessageSend(node);
if (expr != null)
{
return(expr);
}
this.SetCascadeReceiver();
this.SetResult(node.Message.Accept(this));
return(this.Receiver);
}
private Expression InlineMessageSend(Compiler.SemanticNodes.KeywordMessageSequenceNode node)
{
if (this.CascadeReceiver != null)
{
return(null);
}
if (this.IsSuperSend)
{
return(null);
}
if ((node.Message.SelectorTokens.Count == 1) && (node.Message.Arguments.Count == 1))
{
Compiler.SemanticNodes.BlockNode block = node.Message.Arguments[0].Primary as Compiler.SemanticNodes.BlockNode;
if ((block != null) && (block.Arguments.Count == 0) && (node.Message.Arguments[0].Messages == null))
{
if (node.Message.SelectorTokens[0].Value == "ifTrue:")
{
return(this.InlineIfTrueIfFalse(block, null));
}
if (node.Message.SelectorTokens[0].Value == "ifFalse:")
{
return(this.InlineIfTrueIfFalse(null, block));
}
if (node.Message.SelectorTokens[0].Value == "and:")
{
return(this.InlineAnd(block));
}
if (node.Message.SelectorTokens[0].Value == "or:")
{
return(this.InlineOr(block));
}
if (node.Message.SelectorTokens[0].Value == "timesRepeat:")
{
return(this.InlineTimesRepeat(block));
}
}
}
else if ((node.Message.SelectorTokens.Count == 2) && (node.Message.Arguments.Count == 2))
{
Compiler.SemanticNodes.BlockNode block1 = node.Message.Arguments[0].Primary as Compiler.SemanticNodes.BlockNode;
Compiler.SemanticNodes.BlockNode block2 = node.Message.Arguments[1].Primary as Compiler.SemanticNodes.BlockNode;
if ((block1 != null) && (block1.Arguments.Count == 0) && (node.Message.Arguments[0].Messages == null))
{
if ((block2 != null) && (block2.Arguments.Count == 0) && (node.Message.Arguments[1].Messages == null))
{
if ((node.Message.SelectorTokens[0].Value == "ifTrue:") && (node.Message.SelectorTokens[1].Value == "ifFalse:"))
{
return(this.InlineIfTrueIfFalse(block1, block2));
}
if ((node.Message.SelectorTokens[0].Value == "ifFalse:") && (node.Message.SelectorTokens[1].Value == "ifTrue:"))
{
return(this.InlineIfTrueIfFalse(block2, block1));
}
}
}
if ((block2 != null) && (block2.Arguments.Count == 1) && (node.Message.Arguments[1].Messages == null))
{
if ((node.Message.SelectorTokens[0].Value == "to:") && (node.Message.SelectorTokens[1].Value == "do:"))
{
return(this.InlineToDo(node.Message.Arguments[0], block2));
}
}
}
else if ((node.Message.SelectorTokens.Count == 3) && (node.Message.Arguments.Count == 3))
{
Compiler.SemanticNodes.BlockNode block = node.Message.Arguments[2].Primary as Compiler.SemanticNodes.BlockNode;
if ((block != null) && (block.Arguments.Count == 1) && (node.Message.Arguments[2].Messages == null))
{
if ((node.Message.SelectorTokens[0].Value == "to:") && (node.Message.SelectorTokens[1].Value == "by:") && (node.Message.SelectorTokens[2].Value == "do:"))
{
return(this.InlineToByDo(node.Message.Arguments[0], node.Message.Arguments[1], block));
}
}
}
return(null);
}
