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Contents
require "jsduck/util/singleton"
require "jsduck/js/scoped_traverser"
module JsDuck
module Js
# Looks the AST of a FunctionDeclaration or FunctionExpression for
# calls to methods of the owner class.
class MethodCalls
include Util::Singleton
# Returns array of method names called by the given function.
# When no methods called, empty array is returned.
def detect(function_node)
@traverser = Js::ScopedTraverser.new
methods = []
@traverser.traverse(function_node["body"]) do |node|
if method_call?(node)
methods << node["callee"]["property"].to_s
end
end
methods.sort.uniq
end
private
# True when node is this.someMethod() call.
# Also true for me.someMethod() when me == this.
def method_call?(node)
node.call_expression? &&
node["callee"].member_expression? &&
node["callee"].raw["computed"] == false &&
@traverser.this?(node["callee"]["object"].to_s)
end
end
end
end
Version data entries
28 entries across 28 versions & 3 rubygems