Class: VariableExtractor

VariableExtractor(callPropertyExtractor)

Extractor for retrieving and caching the sets of read and written variables in a node's code.

Constructor

new VariableExtractor(callPropertyExtractor)

Create a new VariableExtractor instance.
Parameters:
Name Type Description
callPropertyExtractor CallPropertyExtractor The existing call property extractor
Implements:
  • ExtractorInterface<{writtenVariables: Set<String>, readVariables: Set<Node>}>
Source:

Classes

VariableExtractor

Members

(protected) _memo :Map.<Node, {writtenVariables: Set.<String>, readVariables: Set.<Node>}>

Type:
  • Map.<Node, {writtenVariables: Set.<String>, readVariables: Set.<Node>}>
Source:

(constant) callPropertyExtractor :CallPropertyExtractor

An extractor for the properties of nodes.
Type:
Source:

Methods

(protected) _extract(node)

Extract the sets of read and written variables from a node's content and cache it.
Parameters:
Name Type Description
node Node
Source:

get(node) → {Object}

Get the cached sets of read and written variables. If they are not cached, compute and cache them first.
Parameters:
Name Type Description
node Node
Source:
Returns:
Type
Object