All files / src/walk mapOfWalker.ts

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import clauseFromAlts from  '../utils/clauseFromAlts';
import isProblem from '../utils/isProblem';
import Problem from '../models/Problem';
 
export default 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 ( leEt 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;
  }
 
}