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-rw-r--r--src/main/scala/chisel3/package.scala14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/main/scala/chisel3/package.scala b/src/main/scala/chisel3/package.scala
index 3cdda971..29aa6528 100644
--- a/src/main/scala/chisel3/package.scala
+++ b/src/main/scala/chisel3/package.scala
@@ -3,7 +3,7 @@
package object chisel3 { // scalastyle:ignore package.object.name
import scala.language.experimental.macros
- import internal.firrtl.Width
+ import internal.firrtl.{Width, NumericBound}
import internal.sourceinfo.{SourceInfo, SourceInfoTransform}
import util.BitPat
@@ -202,5 +202,17 @@ package object chisel3 { // scalastyle:ignore package.object.name
implicit def fromBigIntToIntParam(x: BigInt): IntParam = IntParam(x)
implicit def fromDoubleToDoubleParam(x: Double): DoubleParam = DoubleParam(x)
implicit def fromStringToStringParam(x: String): StringParam = StringParam(x)
+
+ implicit class ChiselRange(val sc: StringContext) extends AnyVal {
+ /** Specifies a range using mathematical range notation. Variables can be interpolated using
+ * standard string interpolation syntax.
+ * @example {{{
+ * UInt(range"[0, 2)")
+ * UInt(range"[0, $myInt)")
+ * UInt(range"[0, ${myInt + 2})")
+ * }}}
+ */
+ def range(args: Any*): (NumericBound[Int], NumericBound[Int]) = macro chisel3.internal.RangeTransform.apply
+ }
}
}