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authorPaul Phillips <paulp@improving.org>2013-05-11 16:27:03 -0700
committerPaul Phillips <paulp@improving.org>2013-05-12 10:32:09 -0700
commite28c3edda4dd405ed382227d2a688b799bf33c72 (patch)
tree96e91424dc1830dd9c8bd0a96c1e046e39878bce /test/pending/pos
parent7f29f8512d4975cf3a5a0b536a8910e4e3b4316b (diff)
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SI-1786 incorporate defined bounds in inference
Also fixes SI-5459. Look, you don't have to redeclare the bounds, isn't it exciting? For instance, there are eight places in JavaMirrors with this: jTypeVariable[_ <: GenericDeclaration] After this code is in starr, those can look like this: jTypeVariable[_] Since TypeVariable's definition looks like this: interface TypeVariable<D extends GenericDeclaration> We already know that!
Diffstat (limited to 'test/pending/pos')
-rw-r--r--test/pending/pos/t1786.scala20
-rw-r--r--test/pending/pos/t5459.scala48
2 files changed, 0 insertions, 68 deletions
diff --git a/test/pending/pos/t1786.scala b/test/pending/pos/t1786.scala
deleted file mode 100644
index dca2edaab4..0000000000
--- a/test/pending/pos/t1786.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-/** This a consequence of the current type checking algorithm, where bounds
- * are checked only after variables are instantiated. I believe this will change once we go to contraint-based type inference. Assigning low priority until then.
- *
- *
- */
-class SomeClass(val intValue:Int)
-class MyClass[T <: SomeClass](val myValue:T)
-
-object Test extends Application {
- def myMethod(i:MyClass[_]) {
- i.myValue.intValue/2 // << error i is of type Any
- }
-
- def myMethod(i:MyClass[_ <: SomeClass]) {
- i.myValue.intValue/2 // << works
- }
-}
-/*
-The below code shows a compiler flaw in that the wildcard "_" as value for a bounded type parameter either breaks the boundry - as it result in Any - or doesnt (as id hoped it to be) evaluates to the boundy.
-*/
diff --git a/test/pending/pos/t5459.scala b/test/pending/pos/t5459.scala
deleted file mode 100644
index 971e6f896d..0000000000
--- a/test/pending/pos/t5459.scala
+++ /dev/null
@@ -1,48 +0,0 @@
-trait A1
-trait A2
-trait A3
-trait L1 extends A1 with A2 with A3
-
-object Test {
- trait T1[-A <: A1]
- trait T2[-A >: L1]
- trait T3[ A <: A1]
- trait T4[ A >: L1]
- trait T5[+A <: A1]
- trait T6[+A >: L1]
-
- def f1(x: T1[_]) = x
- def f2(x: T2[_]) = x
- def f3(x: T3[_]) = x
- def f4(x: T4[_]) = x
- def f5(x: T5[_]) = x
- def f6(x: T6[_]) = x
- // a.scala:22: error: type arguments [Any] do not conform to trait T5's type parameter bounds [+A <: A1]
- // def f5(x: T5[_]) = x
- // ^
-
- def g1(x: T1[_ <: A1]) = x
- def g2(x: T2[_ >: L1]) = x
- def g3(x: T3[_ <: A1]) = x
- def g4(x: T4[_ >: L1]) = x
- def g5(x: T5[_ <: A1]) = x
- def g6(x: T6[_ >: L1]) = x
-
- def q1(x: T1[_ >: L1]) = x
- def q2(x: T2[_ <: A1]) = x
- def q3(x: T3[_ >: L1]) = x
- def q4(x: T4[_ <: A1]) = x
- def q5(x: T5[_ >: L1]) = x
- def q6(x: T6[_ <: A1]) = x
- // a.scala:41: error: type arguments [Any] do not conform to trait T5's type parameter bounds [+A <: A1]
- // def q5(x: T5[_ >: L1]) = x
- // ^
- // two errors found
-
- def h1(x: T1[_ >: L1 <: A1]) = x
- def h2(x: T2[_ >: L1 <: A1]) = x
- def h3(x: T3[_ >: L1 <: A1]) = x
- def h4(x: T4[_ >: L1 <: A1]) = x
- def h5(x: T5[_ >: L1 <: A1]) = x
- def h6(x: T6[_ >: L1 <: A1]) = x
-}