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package scala
package reflect
package macros
/**
* <span class="badge badge-red" style="float: right;">EXPERIMENTAL</span>
*
* A slice of [[scala.reflect.macros.blackbox.Context the Scala macros context]] that
* provides facilities to communicate with the compiler's front end
* (emit warnings, errors and other sorts of messages).
*/
trait FrontEnds {
self: blackbox.Context =>
/** For sending a message which should not be labelled as a warning/error,
* but also shouldn't require -verbose to be visible.
* Use `enclosingPosition` if you're in doubt what position to pass to `pos`.
*/
def echo(pos: Position, msg: String): Unit
/** Emits an informational message, suppressed unless `-verbose` or `force=true`.
* Use `enclosingPosition` if you're in doubt what position to pass to `pos`.
*/
def info(pos: Position, msg: String, force: Boolean): Unit
/** Does the compilation session have any warnings?
*/
def hasWarnings: Boolean
/** Emits a warning.
* Use `enclosingPosition` if you're in doubt what position to pass to `pos`.
*/
def warning(pos: Position, msg: String): Unit
/** Does the compilation session have any errors?
*/
def hasErrors: Boolean
/** Emits a compilation error.
* Use `enclosingPosition` if you're in doubt what position to pass to `pos`.
*/
def error(pos: Position, msg: String): Unit
/** Abruptly terminates current macro expansion leaving a note about what happened.
* Use `enclosingPosition` if you're in doubt what position to pass to `pos`.
*/
def abort(pos: Position, msg: String): Nothing
}
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