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-rw-r--r--chiselFrontend/src/main/scala/chisel/core/When.scala59
1 files changed, 0 insertions, 59 deletions
diff --git a/chiselFrontend/src/main/scala/chisel/core/When.scala b/chiselFrontend/src/main/scala/chisel/core/When.scala
deleted file mode 100644
index 5d484313..00000000
--- a/chiselFrontend/src/main/scala/chisel/core/When.scala
+++ /dev/null
@@ -1,59 +0,0 @@
-// See LICENSE for license details.
-
-package chisel.core
-
-import scala.language.experimental.macros
-
-import chisel.internal._
-import chisel.internal.Builder.pushCommand
-import chisel.internal.firrtl._
-import chisel.internal.sourceinfo.{SourceInfo}
-
-object when { // scalastyle:ignore object.name
- /** Create a `when` condition block, where whether a block of logic is
- * executed or not depends on the conditional.
- *
- * @param cond condition to execute upon
- * @param block logic that runs only if `cond` is true
- *
- * @example
- * {{{
- * when ( myData === UInt(3) ) {
- * // Some logic to run when myData equals 3.
- * } .elsewhen ( myData === UInt(1) ) {
- * // Some logic to run when myData equals 1.
- * } .otherwise {
- * // Some logic to run when myData is neither 3 nor 1.
- * }
- * }}}
- */
- def apply(cond: Bool)(block: => Unit)(implicit sourceInfo: SourceInfo): WhenContext = {
- new WhenContext(sourceInfo, cond, !cond, block)
- }
-}
-
-/** Internal mechanism for generating a when. Because of the way FIRRTL
- * commands are emitted, generating a FIRRTL elsewhen or nested whens inside
- * elses would be difficult. Instead, this keeps track of the negative of the
- * previous conditions, so when an elsewhen or otherwise is used, it checks
- * that both the condition is true and all the previous conditions have been
- * false.
- */
-final class WhenContext(sourceInfo: SourceInfo, cond: Bool, prevCond: => Bool, block: => Unit) {
- /** This block of logic gets executed if above conditions have been false
- * and this condition is true.
- */
- def elsewhen (elseCond: Bool)(block: => Unit)(implicit sourceInfo: SourceInfo): WhenContext = {
- new WhenContext(sourceInfo, prevCond && elseCond, prevCond && !elseCond, block)
- }
-
- /** This block of logic gets executed only if the above conditions were all
- * false. No additional logic blocks may be appended past the `otherwise`.
- */
- def otherwise(block: => Unit)(implicit sourceInfo: SourceInfo): Unit =
- new WhenContext(sourceInfo, prevCond, null, block)
-
- pushCommand(WhenBegin(sourceInfo, cond.ref))
- block
- pushCommand(WhenEnd(sourceInfo))
-}