Function createArgumentsSignatureHelp

packages/lsp/src/server/signatureHelp.ts:148–179

(
    parentItemLabel: string,
    docs: WithSignatures,
    values: alphaTab.importer.alphaTex.AlphaTexArgumentList | undefined,
    offset: number
)

}

function createArgumentsSignatureHelp(
    parentItemLabel: string,
    docs: WithSignatures,
    values: alphaTab.importer.alphaTex.AlphaTexArgumentList | undefined,
    offset: number
): SignatureHelp | null {
    const help: SignatureHelp = {
        signatures: docs.signatures.map(s => signatureDefinitionToHelp(parentItemLabel, docs, s)),
        activeSignature: undefined,
        activeParameter: undefined
    };

    if (!values) {
        return help;
    }

    if (values.signatureCandidateIndices !== undefined) {
        help.activeSignature = values.signatureCandidateIndices[0];
        const value = binaryNodeSearch(values.arguments, offset);
        if (value) {
            if (value.parameterIndices !== undefined) {
                for (const [signatureIndex, parameterIndex] of value.parameterIndices) {
                    if (parameterIndex >= 0) {
                        help.signatures[signatureIndex].activeParameter = parameterIndex;
                    }
                }
            }
        }
    }

    return help;
}

function createParameterInfo(signature: SignatureInformation, doc: ParameterDefinition) {
    const start = signature.label.length;