scalaType: Get or Specify a Scala Type

Description

This function gets the Scala type of an rscala reference. It also, together with the associated convenience objects, specifies a Scala type for transcompilation purposes.

Usage

scalaType(type)
stI0
stD0
stL0
stR0
stS0
stI1
stD1
stL1
stR1
stS1
stI2
stD2
stL2
stR2
stS2

Value

An object of class rscalaType whose value is a character vector of length one indicating a Scala type.

Format

See 'Value' below.

An object of class rscalaType of length 1.

Arguments

type: An rscala reference or a character vector of length one giving a Scala type.

Details

The convenience objects are of the form stXY (where X is in {I, D, L, R, S} and Y is in {0, 1, 2}) as as indicated below:

I corresponds to Scala's Int and R's integer.
D corresponds to Scala's Double and R's double.
L corresponds to Scala's Boolean and R's logical.
R corresponds to Scala's Byte and R's raw.
S corresponds to Scala's String and R's character.

0 corresponds to a Scala primitive and an R length one vector.
1 corresponds to a Scala array and an R vector.
2 corresponds to a Scala array of arrays and an R matrix.

For example, stS2 is equivalent to Scala's scalaType("Array[Array[String]]") and R's type for matrix(character()). Also, stL1 is equivalent to Scala's scalaType("Boolean") and R's type for logical(1).

Examples

Run this code

scalaType("Double")
stD0
scalaType("Array[Byte]")
stR1
scalaType("Array[Array[Int]]")
stI2

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