Function getPipelineCompletionItems

src/completions.ts:289–332

(document: vscode.TextDocument, position: vscode.Position, token: vscode.CancellationToken)

}

function getPipelineCompletionItems(document: vscode.TextDocument, position: vscode.Position, token: vscode.CancellationToken): vscode.CompletionItem[] {
    const items: vscode.CompletionItem[] = [];
    const range = extendSelection(position.line, (x) => document.lineAt(x).text, document.lineCount);
    let symbol: string | undefined = undefined;

    for (let i = range.startLine; i <= range.endLine; i++) {
        if (token.isCancellationRequested) {
            break;
        }

        const line = document.lineAt(i);
        if (line.isEmptyOrWhitespace) {
            continue;
        }

        const cleanedLine = cleanLine(line.text);
        if (cleanedLine.length === 0) {
            continue;
        }

        const pipeSymbolIndex = line.text.search(/([\w_.]+)\s*(%.+%|\|>)/);
        if (pipeSymbolIndex < 0) {
            break;
        }

        const symbolPosition = new vscode.Position(i, pipeSymbolIndex);
        const symbolRange = document.getWordRangeAtPosition(symbolPosition);

        if (symbolRange !== undefined) {
            symbol = document.getText(symbolRange);
        }

        break;
    }

    if (!token.isCancellationRequested && symbol !== undefined) {
        const obj = session.workspaceData.globalenv[symbol];
        if (obj !== undefined && obj.names !== undefined) {
            const doc = new vscode.MarkdownString('Element of `' + symbol + '`');
            items.push(...getCompletionItems(obj.names, vscode.CompletionItemKind.Variable, '[session]', doc));
        }
    }
    return items;
}