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[#1267] |
project: compiler |
priority: low |
category: missing feature |
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|
submitter |
assigned to |
status |
date submitted |
|
Iulian |
Martin |
open |
2007-08-08 11:30:16.0 |
| subject |
[contrib #715] Higher-order overloaded methods works bad with implicits |
| code |
object Test {
implicit def i(n: Int): String = n.toString
var l: List[Boolean => String] = Nil
def add(f: Boolean => String) = l = f :: l
def add(f: (Boolean,Boolean) => String) = l = (f(false,_: Boolean)) :: l
def test = add((b: Boolean) => 5)
} |
| what happened |
Test.scala:10: error: overloaded method value add with alternatives ((Boolean, Boolean) => String)Unit ((B\
oolean) => String)Unit cannot be applied to ((Boolean) => Int)
def test = add((b: Boolean) => 5)
|
| what expected |
If there is no overloaded method:
object Test {
implicit def i(n: Int): String = n.toString
var l: List[Boolean => String] = Nil
def add(f: Boolean => String) = l = f :: l
def test = add((b: Boolean) => 5)
}
then when add is called with a function of type Boolean => Int, scalac finds the implicit def and creates a function of typ Boolean => String. I had expected it to work also with overloaded methods.
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