Method formatErrors

tools/common/_hyperscript.iife.js:1093–1133

(errors)

      this.tokens = tokens;
    }
    static formatErrors(errors) {
      if (!errors.length) return "";
      var source = errors[0].source;
      var lines = source.split("\n");
      var byLine = /* @__PURE__ */ new Map();
      for (var e of errors) {
        var lineIdx = e.token?.line ? e.token.line - 1 : lines.length - 1;
        if (!byLine.has(lineIdx)) byLine.set(lineIdx, []);
        byLine.get(lineIdx).push(e);
      }
      var maxLine = Math.max(...byLine.keys()) + 1;
      var gutter = String(maxLine).length;
      var pad = " ".repeat(gutter + 5);
      var sortedLines = [...byLine.entries()].sort((a, b) => a[0] - b[0]);
      var prevLineIdx = -1;
      var out = "";
      for (var [lineIdx, lineErrors] of sortedLines) {
        if (prevLineIdx !== -1 && lineIdx > prevLineIdx + 1) {
          out += " ".repeat(gutter + 1) + "...\n";
        } else if (prevLineIdx === -1 && lineIdx > 0) {
          out += " ".repeat(gutter + 1) + "...\n";
        }
        prevLineIdx = lineIdx;
        var lineNum = String(lineIdx + 1).padStart(gutter);
        var contextLine = lines[lineIdx] || "";
        out += "  " + lineNum + " | " + contextLine + "\n";
        lineErrors.sort((a, b) => (a.column || 0) - (b.column || 0));
        var underlineChars = Array(contextLine.length + 10).fill(" ");
        for (var e of lineErrors) {
          var col = e.token?.line ? e.token.column : Math.max(0, contextLine.length - 1);
          var len = Math.max(1, e.token?.value?.length || 1);
          for (var i = 0; i < len; i++) underlineChars[col + i] = "^";
        }
        out += pad + underlineChars.join("").trimEnd() + "\n";
        for (var e of lineErrors) {
          var col = e.token?.line ? e.token.column : 0;
          out += pad + " ".repeat(col) + e.message + "\n";
        }
      }
      return out;
    }
    // ===========================
    // Token delegation methods
    // ===========================