Class Environment

constructor

• new Environment(
      parent: Environment,
      isBuiltInDefault?: undefined | true,
  ): Environment

  Parameters

  • parent: Environment
  • isBuiltInDefault: undefined | true = undefined

  Returns Environment

OptionalbuiltInEnv

Optionalcache

Readonlyid

memory

Optionaln

parent

closure

• get closure(): undefined | NodeId

  Provides the closure linked to this environment. This is of importance if, for example, if you want to know the function definition associated with this environment.

  Returns undefined | NodeId

append

• append(other: undefined | Environment): Environment

  Adds all writes of other to this environment (i.e., the operations of other might happen). This always recurses parents.

  Parameters

  • other: undefined | Environment

  Returns Environment

clone

• clone(recurseParents: boolean): Environment

  Create a deep clone of this environment.

  Parameters

  • recurseParents: boolean

    Whether to also clone parent environments

  Returns Environment

define

• define(definition: IdentifierDefinition & { name: Identifier }): Environment

  Define a new identifier definition within this environment.

  Parameters

  • definition: IdentifierDefinition & { name: Identifier }

    The definition to add.

  Returns Environment

defineSuper

• defineSuper(
      definition: IdentifierDefinition & { name: Identifier },
  ): Environment

  Parameters

  • definition: IdentifierDefinition & { name: Identifier }

  Returns Environment

overwrite

• overwrite(
      other: undefined | Environment,
      applyCds?: readonly ControlDependency[],
  ): Environment

  Assumes, that all definitions within other replace those within this environment (given the same name). But if all definitions within other are maybe, then they are appended to the current definitions (updating them to be maybe from now on as well), similar to appendEnvironment. This always recurses parents.

  Parameters

  • other: undefined | Environment
  • OptionalapplyCds: readonly ControlDependency[]

  Returns Environment

remove

• remove(id: Identifier): Environment

  Parameters

  • id: Identifier

  Returns Environment

removeAll

• removeAll(names: readonly { name: Identifier }[]): Environment

  Parameters

  • names: readonly { name: Identifier }[]

  Returns Environment

setClosureNodeId

• setClosureNodeId(nodeId: NodeId): void

  please only use if you know what you are doing

  Parameters

  • nodeId: NodeId

  Returns void

toJSON

• toJSON(): Jsonified

  Returns Jsonified