Module libreda_lefdef::lef_ast

Data types that are used to populate the LEF data structure.

Structs

• CutLayer
  Design rules for a CUT (via) layer.
• CutSpacingRule
  SPACING rules for a CUT (via) layer.
• EnclosureRule
  ENCLOSURE rules for a CUT (via) layer.
• FixedVia
  An explicitly defined via.
• GeneratedVia
  A generated via.
• Geometry
  Shape with an optional array step pattern.
• LEF
  Top-level structure of a LEF library.
• LayerGeometries
  Geometrical shapes on a named layer as used in MACRO PIN and OBS definitions.
• LibraryLef
  Library LEF containing macro and standard cell information.
• Macro
  MACRO definition.
• MacroPin
  PIN definition of a MACRO.
• MacroPinPort
  PORT definition of a MACRO PIN. A port describes where a pin is geometrically located. A pin can have multiple ports. They are electrically equivalent.
• MasterSliceLayer
  Design rules for a MASTERSLICE or OVERLAP layer. Master slice layers are usually polysilicon layers and are typically used when a MACRO has pins on the poly layer.
• RoutingLayer
  Design rules for a routing layer.
• Site
  Macro SITE declaration.
• SiteDefinition
  SITE definition.
• SpacingRules
  Spacing rules for a routing layer.
• SpacingTable
  SPACINGTABLE, spacing rules for a routing layer.
• StepPattern
  Array-like repetition of an element.
• TechnologyLef
  Technology LEF containing technology information.
• Units
  Units used in the library.
• ViaShape
  Single shape used in the definition of a fixed via.

Enums

• ClearanceMeasure
  Type of distance measurement
• Layer
  Layer definition. A layer can have different types:
• MacroClass
• MacroClassBlockType
  Subclass of the BLOCK macro class.
• MacroClassCoreType
  Subclass of the CORE macro class.
• MacroClassEndcapType
  Subclass of the ENDCAP macro class.
• MacroClassPadType
  Subclass of the PAD macro class.
• PinShape
  Type of the pin shape.
• PortClass
  TODO: Document.
• RectOrPolygon
  Either a rectangle or a polygon.
• RoutingDirection
  Preferred routing direction on a routing layer.
• Shape
  Either a path, rectangle or polygon.
• SignalUse
  Type of the signal.
• SiteClass
  Specify the type of a site: Either IO site (PAD) or core site (CORE).
• SpacingOrDesignRuleWidth
  Holds either the value of the SPACING argument or DESIGNRULEWIDTH argument of a geometrical layer as used in the LAYER definition in PIN or OBS.
• SpacingRangeType
• SpacingType
• ViaDefinition
  A LEF via definition.