requisite/lib/sourcemap-to-ast.js

A cosmic javascript bundler.

// Generated by CoffeeScript 1.12.5
var SourceMapConsumer, traverse;

SourceMapConsumer = require('source-map').SourceMapConsumer;

traverse = require('estraverse').traverse;

module.exports = function(ast, map) {
  map = new SourceMapConsumer(map);
  traverse(ast, {
    enter: function(node) {
      var origEnd, origStart;
      if (!(node.type && node.loc)) {
        return;
      }
      origStart = map.originalPositionFor(node.loc.start);
      if (!origStart.line) {
        delete node.loc;
        return;
      }
      origEnd = map.originalPositionFor(node.loc.end);
      if (origEnd.line && (origEnd.line < origStart.line || origEnd.column < origStart.column)) {
        origEnd.line = null;
      }
      node.loc = {
        start: {
          line: origStart.line,
          column: origStart.column
        },
        source: origStart.source,
        name: origStart.name
      };
      if (origEnd.line) {
        node.loc.end = {
          line: origEnd.line,
          column: origEnd.column
        };
      }
    }
  });
  return ast;
};

//# sourceMappingURL=sourcemap-to-ast.js.map