@visulima/error/dist/code-frame/index.js

Error with more than just a message, stacktrace parsing.

const normalizeLF = (code) => code.replaceAll(/\r\n|\r(?!\n)|\n/gu, "\n");

const _process = globalThis.process || /* @__PURE__ */ Object.create(null);
const processShims = {
  versions: {}
};
const process = new Proxy(_process, {
  get(target, property) {
    if (property in target) {
      return target[property];
    }
    if (property in processShims) {
      return processShims[property];
    }
    return void 0;
  }
});

const getMarkerLines = (loc, source, linesAbove, linesBelow) => {
  const startLoc = {
    column: 0,
    // @ts-expect-error Can be overwritten
    line: -1,
    ...loc.start
  };
  const endLoc = {
    ...startLoc,
    ...loc.end
  };
  const startLine = startLoc.line;
  const startColumn = startLoc.column;
  const endLine = endLoc.line;
  const endColumn = endLoc.column;
  let start = Math.max(startLine - (linesAbove + 1), 0);
  let end = Math.min(source.length, endLine + linesBelow);
  if (startLine === -1) {
    start = 0;
  }
  if (endLine === -1) {
    end = source.length;
  }
  const lineDiff = endLine - startLine;
  const markerLines = {};
  if (lineDiff) {
    for (let index = 0; index <= lineDiff; index++) {
      const lineNumber = index + startLine;
      if (!startColumn) {
        markerLines[lineNumber] = true;
      } else if (index === 0) {
        const sourceLength = source[lineNumber - 1]?.length;
        markerLines[lineNumber] = [startColumn, (sourceLength ?? 0) - startColumn + 1];
      } else if (index === lineDiff) {
        markerLines[lineNumber] = [0, endColumn];
      } else {
        const sourceLength = source[lineNumber - index]?.length;
        markerLines[lineNumber] = [0, sourceLength];
      }
    }
  } else if (startColumn === endColumn) {
    markerLines[startLine] = startColumn ? [startColumn, 0] : true;
  } else {
    markerLines[startLine] = [startColumn, (endColumn ?? 0) - (startColumn ?? 0)];
  }
  return { end, markerLines, start };
};

const CODE_FRAME_POINTER = process.platform === "win32" && !process.env?.WT_SESSION ? ">" : "❯";
const codeFrame = (source, loc, options) => {
  const config = {
    // grab 2 lines before, and 3 lines after focused line
    linesAbove: 2,
    linesBelow: 3,
    prefix: "",
    showGutter: true,
    tabWidth: 4,
    ...options,
    color: {
      gutter: (value) => value,
      marker: (value) => value,
      message: (value) => value,
      ...options?.color
    }
  };
  const hasColumns = loc.start && typeof loc.start.column === "number";
  let lines = normalizeLF(source).split("\n");
  if (typeof config?.tabWidth === "number") {
    lines = lines.map((ln) => ln.replaceAll("	", " ".repeat(config.tabWidth)));
  }
  const { end, markerLines, start } = getMarkerLines(loc, lines, config.linesAbove, config.linesBelow);
  const numberMaxWidth = String(end).length;
  const { gutter: colorizeGutter, marker: colorizeMarker, message: colorizeMessage } = config.color;
  let frame = lines.slice(start, end).map((line, index) => {
    const number = start + 1 + index;
    const hasMarker = markerLines[number];
    const paddedNumber = ` ${number}`.slice(-numberMaxWidth);
    const lastMarkerLine = !markerLines[number + 1];
    const gutter = ` ${paddedNumber}${config.showGutter ? " |" : ""}`;
    if (hasMarker) {
      let markerLine = "";
      if (Array.isArray(hasMarker)) {
        const markerSpacing = line.replaceAll(/[^\t]/g, " ").slice(0, Math.max(hasMarker[0] - 1, 0));
        const numberOfMarkers = hasMarker[1] || 1;
        markerLine = [
          "\n ",
          config.prefix + colorizeGutter(gutter.replaceAll(/\d/g, " ")),
          " ",
          markerSpacing,
          colorizeMarker("^").repeat(numberOfMarkers)
        ].join("");
        if (lastMarkerLine && config.message) {
          markerLine += ` ${colorizeMessage(config.message)}`;
        }
      }
      return [config.prefix + colorizeMarker(CODE_FRAME_POINTER), colorizeGutter(gutter), line.length > 0 ? ` ${line}` : "", markerLine].join("");
    }
    return `${config.prefix} ${colorizeGutter(gutter)}${line.length > 0 ? ` ${line}` : ""}`;
  }).join("\n");
  if (config.message && !hasColumns) {
    frame = `${config.prefix + " ".repeat(numberMaxWidth + 1) + config.message}
${frame}`;
  }
  return frame;
};

export { CODE_FRAME_POINTER, codeFrame };