CaseZ class Null safety

A special version of Case which can do wildcard matching via z in the expression.

Any z in the value of a CaseItem will act as a wildcard.

Does not support SystemVerilog's ? syntax, which is exactly functionally equivalent to z syntax.

Inheritance

Constructors

CaseZ(Logic expression, List<CaseItem> items, {List<Conditional>? defaultItem, ConditionalType conditionalType = ConditionalType.none})
Whenever an item in items matches expression, it will be executed, but the definition of matches allows for z to be a wildcard.

Properties

caseType String
Returns the SystemVerilog keyword to represent this case block.
read-onlyoverride
conditionalType ConditionalType
The type of case block this is, for special attributes (e.g. ConditionalType.unique, ConditionalType.priority).
finalinherited
defaultItem List<Conditional>?
The default to execute when there was no match with any other CaseItems.
finalinherited
expression Logic
A logical signal to match against.
finalinherited
hashCode int
The hash code for this object.
read-onlyinherited
items List<CaseItem>
An ordered collection of CaseItems to search through for a match to expression.
finalinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

driverInput(Logic driver) Logic
Gets the input port associated with driver.
inherited
driverValue(Logic driver) LogicValue
Gets the value that should be used for execution for the input port associated with driver.
inherited
execute(Set<Logic> drivenSignals) → void
Executes the functionality of this Conditional and populates drivenSignals with all Logics that were driven during execution.
inherited
getConditionals() List<Conditional>
Lists of all Conditionals contained within this Conditional (not including itself).
inherited
getDrivers() List<Logic>
Lists all drivers, recursively including all sub-Conditionals drivers.
inherited
getReceivers() List<Logic>
Lists all receivers, recursively including all sub-Conditionals receivers.
inherited
isMatch(LogicValue value) bool
Returns true iff value matches the expressions current value.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
receiverOutput(Logic receiver) Logic
Gets the output port associated with receiver.
inherited
toString() String
A string representation of this object.
inherited
verilogContents(int indent, Map<String, String> inputsNameMap, Map<String, String> outputsNameMap, String assignOperator) String
Returns a String of SystemVerilog to be used in generated output.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited