Infers an implicit value of the expected type pt in the macro callsite context.
Infers an implicit value of the expected type pt in the macro callsite context.
Optional pos parameter provides a position that will be associated with the implicit search.
If silent is false, TypecheckException will be thrown in case of an inference error.
If silent is true, the typecheck is silent and will return EmptyTree if an error occurs.
Such errors don't vanish and can be inspected by turning on -Xlog-implicits.
Unlike in typeCheck, silent is true by default.
Infers an implicit view from the provided tree tree of the type from to the type to in the macro callsite context.
Infers an implicit view from the provided tree tree of the type from to the type to in the macro callsite context.
Optional pos parameter provides a position that will be associated with the implicit search.
If silent is false, TypecheckException will be thrown in case of an inference error.
If silent is true, the typecheck is silent and will return EmptyTree if an error occurs.
Such errors don't vanish and can be inspected by turning on -Xlog-implicits.
Unlike in typeCheck, silent is true by default.
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 openMacros 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 enclosingMacros, this is a def, which means that it gets recalculated on every invocation,
so it might change depending on what is going on during macro expansion.
Recursively resets symbols and types in a given tree.
Recursively resets symbols and types in a given tree.
Note that this does not revert the tree to its pre-typer shape. For more info, read up https://issues.scala-lang.org/browse/SI-5464.
Recursively resets locally defined symbols and types in a given tree.
Recursively resets locally defined symbols and types in a given tree.
Note that this does not revert the tree to its pre-typer shape. For more info, read up https://issues.scala-lang.org/browse/SI-5464.
Typechecks the provided tree against the expected type pt in the macro callsite context.
Typechecks the provided tree against the expected type pt in the macro callsite context.
If silent is false, TypecheckException will be thrown in case of a typecheck error.
If silent is true, the typecheck is silent and will return EmptyTree if an error occurs.
Such errors don't vanish and can be inspected by turning on -Ymacro-debug-verbose.
Unlike in inferImplicitValue and inferImplicitView, silent is false by default.
Typechecking can be steered with the following optional parameters:
withImplicitViewsDisabled recursively prohibits implicit views (though, implicit vals will still be looked up and filled in), default value is false
withMacrosDisabled recursively prohibits macro expansions and macro-based implicits, default value is false
EXPERIMENTAL
A slice of the Scala macros context that partially exposes the type checker to macro writers.