This colormap uses Colorbrewer's 4-class OrRd color scheme

A method that will create a copy of this DependencyManager, but with different requirements. This is used to solve sub-problems arising from invalidations.

A sequence of firrtl.Transforms that have been run. Internally, this will be converted to an ordered set.

A method that can be overridden to define custom print handling. This is useful if you would like to make some transform print additional information.

Convert all prerequisites, optionalPrerequisites, optionalPrerequisiteOf, and invalidates to a Graphviz representation.

A directed graph consisting of all prerequisites, including prerequisites derived from optionalPrerequisites and optionalPrerequisiteOf

Store of conversions between classes and objects. Objects that do not exist in the map will be lazily constructed.

Perform the transform, encode renaming with RenameMap, and can delete annotations Called by runTransform.

A version of the transformOrder that flattens the transforms of any internal DependencyManagers.

A directed graph consisting of invalidation edges

A function that, given *another* transform (parameter a) will return true if this transform invalidates/undos the effects of the *other* transform (parameter a).

Existing transform objects that have already been constructed

A convenience function useful for debugging and error messages

A sequence of transforms to add this transform as an optionalPrerequisite. The use of optionalPrerequisiteOf enables the transform declaring them to always run before some other transforms. However, declaring optionalPrerequisiteOf will not result in the sequence of transforms executing.

This is useful for providing an ordering constraint to guarantee that other transforms (e.g., emitters) will not be scheduled before you.

All transforms that, if a prerequisite of *another* transform, will run before this transform.

All transform that must run before this transform

Textually show the determined transform order

Helper utility when recursing during pretty printing

Perform the transform and update annotations.

Requested TransformLikes that should be run. Internally, this will be converted to a set based on the ordering defined here.

A mathematical transform on some type

An ordering of TransformLikes that causes the requested targets to be executed starting from the currentState. This ordering respects prerequisites, optionalPrerequisites, optionalPrerequisiteOf, and invalidates of all constituent TransformLikes. This uses an algorithm that attempts to reduce the number of re-lowerings due to invalidations. Re-lowerings are implemented as new DependencyManagers.

A sequence of wrappers to apply to the resulting TransformLike sequence. This can be used to, e.g., add automated pre-processing and post-processing.

All transforms that must run after this transform

This is a means of prerequisite injection into some other transform. Normally a transform will define its own prerequisites. Dependents exist for two main situations:

First, they improve the composition of optional transforms. If some first transform is optional (e.g., an expensive validation check), you would like to be able to conditionally cause it to run. If it is listed as a prerequisite on some other, second transform then it must always run before that second transform. There's no way to turn it off. However, by listing the second transform as a dependent of the first transform, the first transform will only run (and be treated as a prerequisite of the second transform) if included in a list of target transforms that should be run.

Second, an external library would like to inject some first transform before a second transform inside FIRRTL. In this situation, the second transform cannot have any knowledge of external libraries. The use of a dependent here allows for prerequisite injection into FIRRTL proper.

Convenience method to get annotations relevant to this Transform