[MOD] trying old stuff on julia 1.2

2020-05-15 18:50:46 -06:00 · 2020-05-15 18:50:46 -06:00 · c730234884
parent 9af4f44f78
commit c730234884
2 changed files with 6 additions and 1 deletions
--- a/11_DefiningTypes.jl
+++ b/11_DefiningTypes.jl
@ -1,4 +1,4 @@
-abstract Shape
+abstract type Shape end

 type Circle <: Shape
    x::Float64
--- a/18_Interfaces.jl
+++ b/18_Interfaces.jl
@ -0,0 +1,5 @@
+abstract type Expression end
+
+function evaluate(exp::Expression,ctx::Context)
+    error("Must implement evaluate", typeof(exp), ", ctx)")
+end