@imc-trading/svlangserver/lib/svformatter.js

A language server for systemverilog

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SystemVerilogFormatter = void 0;
const node_1 = require("vscode-languageserver/node");
const genutils_1 = require("./genutils");
const child = require("child_process");
class SystemVerilogFormatter {
    constructor(command) {
        this._command = command;
    }
    setCommand(command) {
        this._command = command;
    }
    format(document, range, options) {
        if (!this._command) {
            genutils_1.ConnectionLogger.error("Format command not provided");
            return Promise.resolve([]);
        }
        return new Promise((resolve, reject) => {
            try {
                let stdout = '';
                let stderr = '';
                let rangeArg = !!range ? ` --lines=${range.start.line + 1}-${range.end.line + 1}` : "";
                let commandArgs = (this._command + rangeArg + " -").split(/\s+/);
                let command = commandArgs.shift();
                let formatProc = child.spawn(command, commandArgs);
                formatProc.stdout.on('data', (chunk) => {
                    stdout += chunk;
                });
                formatProc.stderr.on('data', (chunk) => {
                    stderr += chunk;
                });
                formatProc.on('error', (err) => {
                    if (err && err.code === 'ENOENT') {
                        genutils_1.ConnectionLogger.error(`The format command "${this._command}" is not available.`);
                        resolve([]);
                    }
                });
                formatProc.on('close', (code) => {
                    if (stderr.length !== 0) {
                        genutils_1.ConnectionLogger.error(`Formatting gave errors`);
                        resolve([]);
                    }
                    if (code !== 0) {
                        genutils_1.ConnectionLogger.error(`Format command failed`);
                        resolve([]);
                    }
                    resolve([{
                            range: node_1.Range.create(0, 0, document.lineCount - 1, 0),
                            newText: stdout
                        }]);
                });
                formatProc.stdin.end(document.getText());
            }
            catch (error) {
                genutils_1.ConnectionLogger.error(error);
                resolve([]);
            }
        });
    }
}
exports.SystemVerilogFormatter = SystemVerilogFormatter;