org.scalactic

Snapshots

trait Snapshots extends AnyRef

Trait that provides a snap method that takes one or more arguments and results in a SnapshotSeq, whose toString lists the names and values of each argument.

The intended use case of this trait is to help you write debug and log messages that give a "snapshot" of program state. Here's an example:

scala> import Snapshots._
import Snapshots._
scala> snap(a, b, c, d, e, f)
res3: org.scalactic.SnapshotSeq = a was 1, b was 2, c was 3, d was 4, e was null, f was null

SnapshotSeq offers a lines method that places each variable name/value pair on its own line:

scala> snap(a, b, c, d, e, f).lines
res4: String =
a was 1
b was 2
c was 3
d was 4
e was null
f was null

Or, because a SnapshotSeq is a IndexedSeq[Snapshot], you can process it just like any other Seq, for example:

scala> snap(a, b, c, d, e, f).mkString("Wow! ", ", and ", ". That's so awesome!")
res6: String = Wow! a was 1, and b was 2, and c was 3, and d was 4, and e was null, and f was null. That's so awesome!

Source
Snapshots.scala
Linear Supertypes
AnyRef, Any
Known Subclasses
Snapshots
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. Snapshots
  2. AnyRef
  3. Any
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  7. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  8. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  9. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  10. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  11. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  12. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  13. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  14. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  15. final def notify(): Unit

    Definition Classes
    AnyRef

  16. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  17. def snap(expressions: Any*): SnapshotSeq

    Snap the given expressions.

    Snap the given expressions.

    expressions

    expressions to be snapped

    returns

    an IndexedSeq of Snapshot for the given expressions.

    Annotations
    @macroImpl()

  18. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  19. def toString(): String

    Definition Classes
    AnyRef → Any

  20. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

  21. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

  22. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

Inherited from AnyRef

Inherited from Any

Ungrouped