All files / src/walk mapOfWalker.js

0% Statements 0/24
0% Branches 0/10
0% Functions 0/3
0% Lines 0/24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48                                                                                               
var clauseFromAlts = require( '../utils/clauseFromAlts' );
var isProblem = require( '../utils/isProblem' );
var Problem = require( '../models/Problem' );
 
function mapOfWalker( clause, walkFn ) {
  var { keyExpression, valExpression } = clause.opts;
  var keyClause = keyExpression && clauseFromAlts( keyExpression );
  var valClause = valExpression && clauseFromAlts( valExpression );
 
  return {
    trailblaze: mapOfTrailblaze,
    reconstruct: mapOfReconstruct,
  };
 
  function mapOfTrailblaze( x, walkOpts ) {
    var guide = {};
    for ( let key in x ) {
      if ( x.hasOwnProperty( key ) ) {
        let keyR = walkFn( keyClause, key, walkOpts );
        if ( isProblem( keyR ) ) {
          return new Problem( x, clause, { [ key ]: keyR }, `mapOf: key ${key} failed validation` );
        }
 
        let valR = walkFn( valClause, x[ key ], walkOpts );
        if ( isProblem( valR ) ) {
          return new Problem( x, clause, { [ key ]: valR }, `mapOf: value for key ${key} failed validation` );
        }
        guide[ key ] = {
          expr: valClause,
          valGuide: valR,
        };
      }
    }
    return guide;
  }
 
  function mapOfReconstruct( guide, walkOpts ) {
    const r = {};
    for ( let key in guide ) {
      let { expr, valGuide } = guide[ key ];
      r[ key ] = walkFn( expr, valGuide, walkOpts );
    }
    return r;
  }
 
}
module.exports = mapOfWalker;