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module LanguageServer
module Protocol
module Interface
#
# Signature help represents the signature of something
# callable. There can be multiple signature but only one
# active and only one active parameter.
#
class SignatureHelp
def initialize(signatures:, active_signature: nil, active_parameter: nil)
@attributes = {}
@attributes[:signatures] = signatures
@attributes[:activeSignature] = active_signature if active_signature
@attributes[:activeParameter] = active_parameter if active_parameter
@attributes.freeze
end
#
# One or more signatures. If no signatures are available the signature help
# request should return `null`.
#
# @return [SignatureInformation[]]
def signatures
attributes.fetch(:signatures)
end
#
# The active signature. If omitted or the value lies outside the
# range of `signatures` the value defaults to zero or is ignore if
# the `SignatureHelp` as no signatures.
#
# Whenever possible implementors should make an active decision about
# the active signature and shouldn't rely on a default value.
#
# In future version of the protocol this property might become
# mandatory to better express this.
#
# @return [number]
def active_signature
attributes.fetch(:activeSignature)
end
#
# The active parameter of the active signature. If omitted or the value
# lies outside the range of `signatures[activeSignature].parameters`
# defaults to 0 if the active signature has parameters. If
# the active signature has no parameters it is ignored.
# In future version of the protocol this property might become
# mandatory to better express the active parameter if the
# active signature does have any.
#
# @return [number]
def active_parameter
attributes.fetch(:activeParameter)
end
attr_reader :attributes
def to_hash
attributes
end
def to_json(*args)
to_hash.to_json(*args)
end
end
end
end
end
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