View Source GenLSP.Structures.SignatureHelp (gen_lsp v0.6.0)
Signature help represents the signature of something callable. There can be multiple signature but only one active and only one active parameter.
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signatures: One or more signatures.
active_signature: The active signature. If omitted or the value lies outside the range of
signaturesthe value defaults to zero or is ignored if the
SignatureHelphas 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.
active_parameter: The active parameter of the active signature. If omitted or the value lies outside the range of
signatures[activeSignature].parametersdefaults 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.