MacroOverridesNotDynamic

# Illustrates the compile-time dispatch that has to occur with macro overrides.
# You can install Ammonite-REPL (http://www.lihaoyi.com/Ammonite/#Ammonite-REPL), or use scala instead of amm
$ amm
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Welcome to the Ammonite Repl 0.9.3
(Scala 2.12.2 Java 1.8.0_121)
@ import scala.reflect.macros.blackbox  
import scala.reflect.macros.blackbox 
@ import scala.language.experimental.macros 
import scala.language.experimental.macros
@ def fooA(c: blackbox.Context) = {
            import c.universe._
            q""" "A" """
          }  
defined function fooA
@ def fooB(c: blackbox.Context) = {
            import c.universe._
            q""" "B" """
          }  
defined function fooB
@ class A {
      def foo: String = macro fooA
    }  
defined class A
@ class B extends A {
      override def foo: String = macro fooB
    }  
defined class B
@ (new A).foo   
res6: String = "A"
@ (new B).foo   
res7: String = "B"
@ ((new B): A).foo   
res8: String = "A"