A macro transform that runs after typer and before pickler to perform additional Scala.js-specific checks and transformations necessary for interoperability with JavaScript.
It performs the following functions:
- Sanity checks for the js.Any hierarchy
- Annotate subclasses of js.Any to be treated specially
- Create JSExport methods: Dummy methods that are propagated through the whole compiler chain to mark exports. This allows exports to have the same semantics than methods.
This is the equivalent of PrepJSInterop in Scala 2, minus the handling
of scala.Enumeration.
The reason for making this a macro transform is that some functions (in particular all the checks that behave differently depending on properties of classes in the enclosing class chain) are naturally top-down and don't lend themselves to the bottom-up approach of a mini phase.
In addition, the addition of export forwarders must be done before pickling to be signature-compatible with scalac, and there are only macro transforms before pickling.
- Companion:
- object
Type members
Classlikes
Inherited classlikes
Value members
Concrete methods
Inherited methods
Can this transform change the base types of a type?
Can this transform change the base types of a type?
- Inherited from:
- Phase
Can this transform change the parents of a class?
Can this transform change the parents of a class?
- Inherited from:
- Phase
Check what the phase achieves, to be called at any point after it is finished.
Check what the phase achieves, to be called at any point after it is finished.
- Inherited from:
- Phase
The sequence position of this phase in the given context where 0 is reserved for NoPhase and the first real phase is at position 1. -1 if the phase is not installed in the context.
The sequence position of this phase in the given context where 0 is reserved for NoPhase and the first real phase is at position 1. -1 if the phase is not installed in the context.
- Inherited from:
- Phase
Output should be checkable by TreeChecker
Output should be checkable by TreeChecker
- Inherited from:
- Phase
Is this phase the standard typerphase? True for TyperPhase, but not for other first phases (such as FromTasty or Parser). The predicate is tested in some places that perform checks and corrections. It's different from ctx.isAfterTyper (and cheaper to test).
Is this phase the standard typerphase? True for TyperPhase, but not for other first phases (such as FromTasty or Parser). The predicate is tested in some places that perform checks and corrections. It's different from ctx.isAfterTyper (and cheaper to test).
- Inherited from:
- Phase
The last phase during which the transformed denotations are valid
The last phase during which the transformed denotations are valid
- Inherited from:
- DenotTransformer
If set, allow missing or superfluous arguments in applications and type applications.
If set, allow missing or superfluous arguments in applications and type applications.
- Inherited from:
- Phase
List of names of phases that should precede this phase
List of names of phases that should precede this phase
- Inherited from:
- Phase
The phase in which the transformation should be run. By default this is the phase given by the this macro transformer, but it could be overridden to be the phase following that one.
The phase in which the transformation should be run. By default this is the phase given by the this macro transformer, but it could be overridden to be the phase following that one.
- Inherited from:
- MacroTransform
The validity period of the transformed denotations in the given context
The validity period of the transformed denotations in the given context
- Inherited from:
- DenotTransformer