A builder for attributes that are applied to declarations of a common type and group them by the given attribute argument (an arbitrary Name, currently). Also creates a second "builtin" attribute used for bootstrapping, which saves the applied declarations in an IO.Ref instead of an environment extension.

Used to register elaborators, macros, tactics, and delaborators.

@[inline, reducible]

abbrev Lean.KeyedDeclsAttribute.Key : Type

structure Lean.KeyedDeclsAttribute.Def (γ : Type) : Type

• builtinName : Lake.Name

  Builtin attribute name, if any (e.g., `builtin_term_elab)

• name : Lake.Name

  Attribute name (e.g., `term_elab)

• descr : String

  Attribute description

• valueTypeName : Lake.Name
• evalKey : Bool → Lean.Syntax → Lean.AttrM Lean.KeyedDeclsAttribute.Key

  Convert Syntax into a Key, the default implementation expects an identifier.

• onAdded : Bool → Lake.Name → Lean.AttrM Unit

KeyedDeclsAttribute definition.

Important: mkConst valueTypeName and γ must be definitionally equal.

instance Lean.KeyedDeclsAttribute.instInhabitedDef : {a : Type} → Inhabited (Lean.KeyedDeclsAttribute.Def a)

structure Lean.KeyedDeclsAttribute.OLeanEntry : Type

• key : Lean.KeyedDeclsAttribute.Key
• declName : Lake.Name

  Name of a declaration stored in the environment which has type mkConst Def.valueTypeName.

instance Lean.KeyedDeclsAttribute.instInhabitedOLeanEntry : Inhabited Lean.KeyedDeclsAttribute.OLeanEntry

structure Lean.KeyedDeclsAttribute.AttributeEntry (γ : Type) extends Lean.KeyedDeclsAttribute.OLeanEntry : Type

• key : Lean.KeyedDeclsAttribute.Key
• declName : Lake.Name
• value : γ

  Recall that we cannot store γ into .olean files because it is a closure. Given OLeanEntry.declName, we convert it into a γ by using the unsafe function evalConstCheck.

@[inline, reducible]

abbrev Lean.KeyedDeclsAttribute.Table (γ : Type) : Type

structure Lean.KeyedDeclsAttribute.ExtensionState (γ : Type) : Type

• newEntries : List Lean.KeyedDeclsAttribute.OLeanEntry
• table : Lean.KeyedDeclsAttribute.Table γ
• declNames : Lean.PHashSet Lake.Name
• erased : Lean.PHashSet Lake.Name

instance Lean.KeyedDeclsAttribute.instInhabitedExtensionState : {a : Type} → Inhabited (Lean.KeyedDeclsAttribute.ExtensionState a)

@[inline, reducible]

abbrev Lean.KeyedDeclsAttribute.Extension (γ : Type) : Type

structure Lean.KeyedDeclsAttribute (γ : Type) : Type

• defn : Lean.KeyedDeclsAttribute.Def γ
• tableRef : IO.Ref (Lean.KeyedDeclsAttribute.Table γ)
• ext : Lean.KeyedDeclsAttribute.Extension γ

instance Lean.instNonemptyKeyedDeclsAttribute : ∀ {γ : Type}, Nonempty (Lean.KeyedDeclsAttribute γ)

def Lean.KeyedDeclsAttribute.ExtensionState.insert {γ : Type} (s : Lean.KeyedDeclsAttribute.ExtensionState γ) (v : Lean.KeyedDeclsAttribute.AttributeEntry γ) : Lean.KeyedDeclsAttribute.ExtensionState γ

def Lean.KeyedDeclsAttribute.addBuiltin {γ : Type} (attr : Lean.KeyedDeclsAttribute γ) (key : Lean.KeyedDeclsAttribute.Key) (declName : Lake.Name) (value : γ) : IO Unit

def Lean.KeyedDeclsAttribute.mkStateOfTable {γ : Type} (table : Lean.KeyedDeclsAttribute.Table γ) : Lean.KeyedDeclsAttribute.ExtensionState γ

def Lean.KeyedDeclsAttribute.ExtensionState.erase {γ : Type} (s : Lean.KeyedDeclsAttribute.ExtensionState γ) (attrName : Lake.Name) (declName : Lake.Name) : Lean.CoreM (Lean.KeyedDeclsAttribute.ExtensionState γ)

unsafe def Lean.KeyedDeclsAttribute.init {γ : Type} (df : Lean.KeyedDeclsAttribute.Def γ) (attrDeclName : autoParam Lake.Name _auto✝) : IO (Lean.KeyedDeclsAttribute γ)

def Lean.KeyedDeclsAttribute.getEntries {γ : Type} (attr : Lean.KeyedDeclsAttribute γ) (env : Lean.Environment) (key : Lake.Name) : List (Lean.KeyedDeclsAttribute.AttributeEntry γ)

Retrieve entries tagged with [attr key] or [builtinAttr key].

def Lean.KeyedDeclsAttribute.getValues {γ : Type} (attr : Lean.KeyedDeclsAttribute γ) (env : Lean.Environment) (key : Lake.Name) : List γ

Retrieve values tagged with [attr key] or [builtinAttr key].