Indicates than one of the enclosure methods failed to find a tree of required type among enclosing trees.
The semantic role that macroApplication plays in the code.
The role that represents an application of a term macro, e.
The role that represents an application of a term macro,
e.g. M(2)(3) in val x = M(2)(3) or M(a, b) in x match { case x @ M(a, b) => }.
Tree that corresponds to the enclosing DefDef tree.
Tree that corresponds to the enclosing DefDef tree.
Throws EnclosureException if there's no such enclosing tree.
Tree that corresponds to the enclosing ImplDef tree (i.
Tree that corresponds to the enclosing ImplDef tree (i.e. either ClassDef or ModuleDef).
Throws EnclosureException if there's no such enclosing tree.
Contexts that represent macros in-flight, including the current one.
Contexts that represent macros in-flight, including the current one. Very much like a stack trace, but for macros only. Can be useful for interoperating with other macros and for imposing compiler-friendly limits on macro expansion.
Is also priceless for emitting sane error messages for macros that are called by other macros on synthetic (i.e. position-less) trees.
In that dire case navigate the enclosingMacros stack, and it will most likely contain at least one macro with a position-ful macro application.
See enclosingPosition for a default implementation of this logic.
Unlike openMacros, this is a val, which means that it gets initialized when the context is created
and always stays the same regardless of whatever happens during macro expansion.
Tree that corresponds to the enclosing PackageDef tree.
Tree that corresponds to the enclosing PackageDef tree.
Throws EnclosureException if there's no such enclosing tree.
Tries to guess a position for the enclosing application.
Tries to guess a position for the enclosing application.
But that is simple, right? Just dereference pos of macroApplication? Not really.
If we're in a synthetic macro expansion (no positions), we must do our best to infer the position of something that triggerd this expansion.
Surprisingly, quite often we can do this by navigation the enclosingMacros stack.
Compilation run that contains this macro application.
Tree that corresponds to the enclosing Template tree.
Tree that corresponds to the enclosing Template tree.
Throws EnclosureException if there's no such enclosing tree.
Compilation unit that contains this macro application.
The tree that undergoes macro expansion.
The tree that undergoes macro expansion. Can be useful to get an offset or a range position of the entire tree being processed.
The semantic role that macroApplication plays in the code.
Tree that corresponds to the enclosing class, or EmptyTree if not applicable.
Tree that corresponds to the enclosing class, or EmptyTree if not applicable.
(Since version 2.10.1) Use enclosingImpl instead, but be wary of changes in semantics
Tree that corresponds to the enclosing method, or EmptyTree if not applicable.
Tree that corresponds to the enclosing method, or EmptyTree if not applicable.
(Since version 2.10.1) Use enclosingDef instead, but be wary of changes in semantics
EXPERIMENTAL
A slice of the Scala macros context that exposes enclosing trees (method, class, compilation unit and currently compiled application), the enclosing position of the macro expansion, as well as macros and implicits that are currently in-flight.