An unpacked associative dimension, like [T] or [*]. More...

#include <MooreTypes.h>

Inheritance diagram for circt::moore::UnpackedAssocDim:

Collaboration diagram for circt::moore::UnpackedAssocDim:

Public Member Functions
UnpackedType	getIndexType () const
	Get the index type of the associative dimension. More...

Static Public Member Functions
static UnpackedAssocDim	get (UnpackedType inner, UnpackedType indexType={})

Static Public Attributes
static constexpr StringLiteral	name = "moore.unpacked_assoc_dim"

Friends
struct	detail::DimStorage

Detailed Description

An unpacked associative dimension, like [T] or [*].

Associative arrays in SystemVerilog can have a concrete index type ([T]), or a wildcard index type ([*], §7.8.1). The latter is exceptionally strange, as it applies only to integer indices, but supports arbitrarily sized indices by always removing leading zeros from any index that is used in the lookup. This is interesting if a string is used to index into such an array, because strings are automatically cast to a bit vector of equivalent size, which results in a sort-of string key lookup. However, note that there are also dedicated semantics for using string as the actual index type (§7.8.2).

See IEEE 1800-2017 §7.8 "Associative arrays".

Definition at line 1013 of file MooreTypes.h.

Member Function Documentation

◆ get()

UnpackedAssocDim UnpackedAssocDim::get	(	UnpackedType	inner,
		UnpackedType	indexType = `{}`
	)

static

Definition at line 930 of file MooreTypes.cpp.

References circt::calyx::direction::get().

Referenced by customTypeParser(), mooreUnpackedAssocDimTypeGet(), and mooreUnpackedAssocDimTypeGetWithIndex().

◆ getIndexType()

UnpackedType UnpackedAssocDim::getIndexType ( ) const

Get the index type of the associative dimension.

This returns either the type T in a dimension [T], or a null type in a dimension [*].

Definition at line 937 of file MooreTypes.cpp.

Friends And Related Function Documentation

◆ detail::DimStorage

friend struct detail::DimStorage

friend

Definition at line 1027 of file MooreTypes.h.

Member Data Documentation

◆ name

constexpr StringLiteral circt::moore::UnpackedAssocDim::name = "moore.unpacked_assoc_dim"

staticconstexpr

Definition at line 1023 of file MooreTypes.h.

The documentation for this class was generated from the following files:

/home/runner/work/circt-www/circt-www/circt_src/include/circt/Dialect/Moore/MooreTypes.h
/home/runner/work/circt-www/circt-www/circt_src/lib/Dialect/Moore/MooreTypes.cpp

Public Member Functions

Static Public Member Functions

Static Public Attributes

Friends