trait FieldMirror extends AnyRef
A mirror that reflects a field. See the overview page for details on how to use runtime reflection.
- Source
- Mirrors.scala
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- FieldMirror
- AnyRef
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- by StringFormat
- by Ensuring
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Abstract Value Members
- abstract def bind(newReceiver: Any): Universe.FieldMirror
Creates a new mirror which uses the same symbol, but is bound to a different receiver.
Creates a new mirror which uses the same symbol, but is bound to a different receiver. This is significantly faster than recreating the mirror from scratch.
- abstract def get: Any
Retrieves the value stored in the field.
Retrieves the value stored in the field.
Scala reflection uses reflection capabilities of the underlying platform, so
FieldMirror.get
might throw platform-specific exceptions associated with getting a field or invoking a getter method of the field.If
symbol
represents a field of a base class with respect to the class of the receiver, and this base field is overridden in the class of the receiver, then this method will retrieve the value of the base field. To achieve overriding behavior, use reflectMethod on an accessor. - abstract def receiver: Any
The object containing the field
- abstract def set(value: Any): Unit
Updates the value stored in the field.
Updates the value stored in the field.
If a field is immutable, a
ScalaReflectionException
will be thrown.Scala reflection uses reflection capabilities of the underlying platform, so
FieldMirror.get
might throw platform-specific exceptions associated with setting a field or invoking a setter method of the field.If
symbol
represents a field of a base class with respect to the class of the receiver, and this base field is overridden in the class of the receiver, then this method will set the value of the base field. To achieve overriding behavior, use reflectMethod on an accessor. - abstract def symbol: Universe.TermSymbol
The field symbol representing the field.
The field symbol representing the field.
In Scala
val
andvar
declarations are usually compiled down to a pair of a backing field and corresponding accessor/accessors, which means that a single declaration might correspond to up to three different symbols. Nevertheless theFieldMirror.symbol
field always points to a backing field symbol.
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toany2stringadd[Universe.FieldMirror] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
- def ->[B](y: B): (Universe.FieldMirror, B)
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toArrowAssoc[Universe.FieldMirror] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- def ensuring(cond: (Universe.FieldMirror) => Boolean, msg: => Any): Universe.FieldMirror
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toEnsuring[Universe.FieldMirror] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (Universe.FieldMirror) => Boolean): Universe.FieldMirror
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toEnsuring[Universe.FieldMirror] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): Universe.FieldMirror
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toEnsuring[Universe.FieldMirror] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): Universe.FieldMirror
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toEnsuring[Universe.FieldMirror] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
Deprecated Value Members
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toStringFormat[Universe.FieldMirror] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.12.16) Use
formatString.format(value)
instead ofvalue.formatted(formatString)
, or use thef""
string interpolator. In Java 15 and later,formatted
resolves to the new method in String which has reversed parameters.
- def →[B](y: B): (Universe.FieldMirror, B)
- Implicit
- This member is added by an implicit conversion from Universe.FieldMirror toArrowAssoc[Universe.FieldMirror] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
->
instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.