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Diffstat (limited to 'src/dotty/tools/dotc/ast/TreeInfo.scala')
| -rw-r--r-- | src/dotty/tools/dotc/ast/TreeInfo.scala | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/dotty/tools/dotc/ast/TreeInfo.scala b/src/dotty/tools/dotc/ast/TreeInfo.scala index a04b7b2da..e52ff9d62 100644 --- a/src/dotty/tools/dotc/ast/TreeInfo.scala +++ b/src/dotty/tools/dotc/ast/TreeInfo.scala @@ -248,6 +248,15 @@ trait TreeInfo[T >: Untyped] { self: Trees.Instance[T] => /** Is this case guarded? */ def isGuardedCase(cdef: CaseDef) = cdef.guard ne EmptyTree + /** True iff definition if a val or def with no right-hand-side, or it + * is an abstract typoe declaration + */ + def lacksDefinition(mdef: MemberDef) = mdef match { + case mdef: ValOrDefDef => mdef.rhs.isEmpty && !mdef.name.isConstructorName + case mdef: TypeDef => mdef.rhs.isEmpty || mdef.rhs.isInstanceOf[TypeBoundsTree] + case _ => false + } + /** The underlying pattern ignoring any bindings */ def unbind(x: Tree): Tree = unsplice(x) match { case Bind(_, y) => unbind(y) |