structure Lean.Elab.Command.Scope : Type

A Scope records the part of the CommandElabM state that respects scoping, such as the data for universe, open, and variable declarations, the current namespace, and currently enabled options. The CommandElabM state contains a stack of scopes, and only the top Scope on the stack is read from or modified. There is always at least one Scope on the stack, even outside any section or namespace, and each new pushed Scope starts as a modified copy of the previous top scope.

• header : String

  The component of the namespace or section that this scope is associated to. For example, section a.b.c and namespace a.b.c each create three scopes with headers named a, b, and c. This is used for checking the end command. The "base scope" has "" as its header.

• opts : Options

  The current state of all set options at this point in the scope. Note that this is the full current set of options and does not simply contain the options set while this scope has been active.

• currNamespace : Name

  The current namespace. The top-level namespace is represented by Name.anonymous.

• openDecls : List OpenDecl

  All currently opened namespaces and names.

• levelNames : List Name

  The current list of names for universe level variables to use for new declarations. This is managed by the universe command.

• varDecls : Array (TSyntax `Lean.Parser.Term.bracketedBinder)

  The current list of binders to use for new declarations. This is managed by the variable command. Each binder is represented in Syntax form, and it is re-elaborated within each command that uses this information.

  This is also used by commands, such as #check, to create an initial local context, even if they do not work with binders per se.

• varUIds : Array Name

  Globally unique internal identifiers for the varDecls. There is one identifier per variable introduced by the binders (recall that a binder such as (a b c : Ty) can produce more than one variable), and each identifier is the user-provided variable name with a macro scope. This is used by TermElabM in Lean.Elab.Term.Context to help with processing macros that capture these variables.

• includedVars : List Name

  included section variable names (from varUIds)

• omittedVars : List Name

  omitted section variable names (from varUIds)

• isNoncomputable : Bool

  If true (default: false), all declarations that fail to compile automatically receive the noncomputable modifier. A scope with this flag set is created by noncomputable section.

  Recall that a new scope inherits all values from its parent scope, so all sections and namespaces nested within a noncomputable section also have this flag set.

• isPublic : Bool

  True if a public section is in scope.

• attrs : List (TSyntax `Lean.Parser.Term.attrInstance)

  Attributes that should be applied to all matching declaration in the section. Inherited from parent scopes.

def Lean.Elab.Command.instInhabitedScope.default : Scope

Equations

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instance Lean.Elab.Command.instInhabitedScope : Inhabited Scope

Equations

• Lean.Elab.Command.instInhabitedScope = { default := Lean.Elab.Command.instInhabitedScope.default }