diff options
| author | Schuyler Eldridge | 2020-04-21 22:41:23 -0400 |
|---|---|---|
| committer | Schuyler Eldridge | 2020-04-22 18:46:31 -0400 |
| commit | 39d76a02785f4391b67abd3b7d7720d287736312 (patch) | |
| tree | e820790206a46a315e0b2d5634c5a8c9825931a2 /src/main/scala/firrtl/transforms/Flatten.scala | |
| parent | 1bf80040825e96ce04c15374304c144b9d48e902 (diff) | |
Mixin DependencyAPIMigration to all Transforms
This mixes in the new DependencyAPIMigration trait into all Transforms
and Passes. This enables in-tree transforms/passes to build without
deprecation warnings associated with the deprecated CircuitForm.
As a consequence of this, every Transform now has UnknownForm as both
its inputForm and outputForm. This PR modifies legacy Compiler and
testing infrastructure to schedule transforms NOT using
mergeTransforms/getLoweringTransforms (which rely on inputForm and
outputForm not being UnknownForm), but instead using the Dependency
API.
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
Diffstat (limited to 'src/main/scala/firrtl/transforms/Flatten.scala')
| -rw-r--r-- | src/main/scala/firrtl/transforms/Flatten.scala | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/main/scala/firrtl/transforms/Flatten.scala b/src/main/scala/firrtl/transforms/Flatten.scala index 68cfa3d0..8826a370 100644 --- a/src/main/scala/firrtl/transforms/Flatten.scala +++ b/src/main/scala/firrtl/transforms/Flatten.scala @@ -7,7 +7,9 @@ import firrtl.ir._ import firrtl.Mappers._ import firrtl.annotations._ import scala.collection.mutable +import firrtl.options.PreservesAll import firrtl.passes.{InlineInstances,PassException} +import firrtl.stage.Forms /** Tags an annotation to be consumed by this transform */ case class FlattenAnnotation(target: Named) extends SingleTargetAnnotation[Named] { @@ -22,9 +24,11 @@ case class FlattenAnnotation(target: Named) extends SingleTargetAnnotation[Named * @note Flattening a module means inlining all its fully-defined child instances * @note Instances of extmodules are not (and cannot be) inlined */ -class Flatten extends Transform { - def inputForm = LowForm - def outputForm = LowForm +class Flatten extends Transform with DependencyAPIMigration with PreservesAll[Transform] { + + override def prerequisites = Forms.LowForm + override def optionalPrerequisites = Seq.empty + override def dependents = Forms.LowEmitters val inlineTransform = new InlineInstances |