func printType(node ast.Node) {
switch node.(type) {
case *ast.Tuple:
t := node.(*ast.Tuple)
fmt.Printf("( ")
for _, node := range t.Nodes {
printType(node)
}
fmt.Printf(") ")
default:
fmt.Printf("%v ", node.Type())
}
}
func parseBinds(node ast.Node) ast.Binds {
fmt.Println("#parseBinds")
if node.Type() != const_.TUPLE {
panic("let: bad syntax")
}
nodes := node.(*ast.Tuple).Nodes
binds := ast.NewBinds(nil)
for _, bind := range nodes {
if bind.Type() != const_.TUPLE {
panic("let: bad syntax")
}
t := bind.(*ast.Tuple)
if len(t.Nodes) != 2 && t.Nodes[0].Type() != const_.IDENT {
panic("let: bad syntax")
}
binds.Bindings = append(
binds.Bindings, *ast.NewBind(t.Nodes[0].(*ast.Ident).Name, parseNode(t.Nodes[1])))
}
return *binds
}