Attributes
Members list
Type members
Classlikes
Value members
Concrete methods
1.1. M must have the same or stronger access privileges as O. 1.2. O must not be effectively final. 1.3. If M or O are extension methods, they must both be extension methods. (Should be before the check for the need of override
modifier.) 1.4. O is deferred, or M has override
modifier. 1.5. If O is stable, then so is M. 1.6. If O is a type alias, then M is an alias of O. 1.7. If O is an abstract type then 1.7.1 either M is an abstract type, and M's bounds are sharper than O's bounds. or M is a type alias or class which conforms to O's bounds. 1.7.2 higher-order type arguments must respect bounds on higher-order type parameters -- @M (explicit bounds and those implied by variance annotations) -- @see checkKindBounds 1.8. If O and M are values, then 1.8.1 M's type is a subtype of O's type, or 1.8.2 M is of type []S, O is of type ()T and S <: T, or 1.8.3 M is of type ()S, O is of type []T and S <: T, or 1.9. If M is erased, O is erased. If O is erased, M is erased or inline. 1.10. If O is inline (and deferred, otherwise O would be final), M must be inline 1.11. If O is a Scala-2 macro, M must be a Scala-2 macro. 1.12. Under -source future, if O is a val parameter, M must be a val parameter that passes its value on to O. 1.13. If O is non-experimental, M must be non-experimental. 1.14. If O has @publicInBinary, M must have @publicInBinary. 2. Check that only abstract classes have deferred members 3. Check that concrete classes do not have deferred definitions that are not implemented in a subclass. 4. Check that every member with an override
modifier overrides some other member. TODO check that classes are not overridden TODO This still needs to be cleaned up; the current version is a straight port of what was there before, but it looks too complicated and method bodies are far too large.
- Check all members of class
clazz
for overriding conditions. That is for overriding member M and overridden member O:
1.1. M must have the same or stronger access privileges as O. 1.2. O must not be effectively final. 1.3. If M or O are extension methods, they must both be extension methods. (Should be before the check for the need of override
modifier.) 1.4. O is deferred, or M has override
modifier. 1.5. If O is stable, then so is M. 1.6. If O is a type alias, then M is an alias of O. 1.7. If O is an abstract type then 1.7.1 either M is an abstract type, and M's bounds are sharper than O's bounds. or M is a type alias or class which conforms to O's bounds. 1.7.2 higher-order type arguments must respect bounds on higher-order type parameters -- @M (explicit bounds and those implied by variance annotations) -- @see checkKindBounds 1.8. If O and M are values, then 1.8.1 M's type is a subtype of O's type, or 1.8.2 M is of type []S, O is of type ()T and S <: T, or 1.8.3 M is of type ()S, O is of type []T and S <: T, or 1.9. If M is erased, O is erased. If O is erased, M is erased or inline. 1.10. If O is inline (and deferred, otherwise O would be final), M must be inline 1.11. If O is a Scala-2 macro, M must be a Scala-2 macro. 1.12. Under -source future, if O is a val parameter, M must be a val parameter that passes its value on to O. 1.13. If O is non-experimental, M must be non-experimental. 1.14. If O has @publicInBinary, M must have @publicInBinary. 2. Check that only abstract classes have deferred members 3. Check that concrete classes do not have deferred definitions that are not implemented in a subclass. 4. Check that every member with an override
modifier overrides some other member. TODO check that classes are not overridden TODO This still needs to be cleaned up; the current version is a straight port of what was there before, but it looks too complicated and method bodies are far too large.
Value parameters
- makeOverridingPairsChecker
-
A function for creating a OverridePairsChecker instance from the class symbol and the self type
Attributes
Check that we do not "override" anything with a private method or something that becomes a private method. According to the Scala modeling this is non-sensical since private members don't override. But Java and the JVM disagree, if the private member is a method. A test case is neg/i7926b.scala. Note: The compiler could possibly silently rename the offending private instead of flagging it as an error. But that might mean we see some surprising names at runtime. E.g. in neg/i4564a.scala, a private case class apply
method would have to be renamed to something else.
Check that we do not "override" anything with a private method or something that becomes a private method. According to the Scala modeling this is non-sensical since private members don't override. But Java and the JVM disagree, if the private member is a method. A test case is neg/i7926b.scala. Note: The compiler could possibly silently rename the offending private instead of flagging it as an error. But that might mean we see some surprising names at runtime. E.g. in neg/i4564a.scala, a private case class apply
method would have to be renamed to something else.
Attributes
Check that self type of this class conforms to self types of parents and required classes. Also check that only enum
constructs extend java.lang.Enum
and no user-written class extends ContextFunctionN.
Check that self type of this class conforms to self types of parents and required classes. Also check that only enum
constructs extend java.lang.Enum
and no user-written class extends ContextFunctionN.
Attributes
- Check that self type of
cls
conforms to self types of allparents
as seen fromcls.thisType
- If self type of
cls
is explicit, check that it conforms to the self types of all its class symbols.
Value parameters
- deep
-
If true and a self type of a parent is not given explicitly, recurse to check against the parents of the parent. This is needed when capture checking, since we assume (& check) that the capture set of an inferred self type is the intersection of the capture sets of all its parents
Attributes
Check that unary method definition do not receive parameters. They can only receive inferred parameters such as type parameters and implicit parameters.
Check that unary method definition do not receive parameters. They can only receive inferred parameters such as type parameters and implicit parameters.