grind-assets/lib/Errors/makeSyntaxError.js

Asset management for Grind

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.makeSyntaxError = makeSyntaxError;

var _grindSupport = require("grind-support");

var _codeFrame = require("@babel/code-frame");

function _isnil(val) { return val === null || typeof val === 'undefined'; }

const path = require('path');

async function makeSyntaxError(app, {
  message,
  fileName,
  lineNumber,
  columnNumber,
  causedBy
} = {}) {
  if (!_isnil(causedBy)) {
    if (typeof message !== 'string') {
      message = causedBy.message;
    }

    if (typeof fileName !== 'string') {
      fileName = causedBy.fileName || causedBy.filename || causedBy.file;
    }

    if (typeof lineNumber !== 'number') {
      lineNumber = causedBy.lineNumber || causedBy.line;
    }

    if (typeof columnNumber !== 'number') {
      columnNumber = causedBy.columnNumber || causedBy.column;
    }
  }

  if (typeof fileName !== 'string' || typeof lineNumber !== 'number' || lineNumber <= 0 || !(await _grindSupport.FS.exists(fileName))) {
    return causedBy || new SyntaxError(message);
  }

  const lines = (await _grindSupport.FS.readFile(fileName)).toString();
  const codeFrame = (0, _codeFrame.codeFrameColumns)(lines, {
    start: {
      line: lineNumber || 1,
      column: columnNumber || 1
    }
  }, {
    highlightCode: true,
    forceColor: true
  });
  const relativeFileName = `./${path.relative(app.paths.base(), fileName)}`;
  const error = new SyntaxError(`${relativeFileName}\nLine ${lineNumber}: ${message}\n\n${codeFrame}`, fileName, lineNumber);
  error.cause = causedBy;
  return error;
}
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