hasAttributes: function()

in src/collections/JSXElement.js [77:115]

• 32 lines of code
• 8 McCabe index (conditional complexity)

  hasAttributes: function(attributeFilter) {
    const attributeNames = Object.keys(attributeFilter);
    return function filter(path) {
      if (!JSXElement.check(path.value)) {
        return false;
      }
      const elementAttributes = Object.create(null);
      path.value.openingElement.attributes.forEach(function(attr) {
        if (!JSXAttribute.check(attr) ||
          !(attr.name.name in attributeFilter)) {
          return;
        }
        elementAttributes[attr.name.name] = attr;
      });

      return attributeNames.every(function(name) {
        if (!(name in elementAttributes) ){
          return false;
        }

        const value = elementAttributes[name].value;
        const expected = attributeFilter[name];

        // Only when value is truthy access it's properties
        const actual = !value
          ? value
          : Literal.check(value)
          ? value.value
          : value.expression;

        if (typeof expected === 'function') {
          return expected(actual);
        }

         // Literal attribute values are always strings
        return String(expected) === actual;
      });
    };
  },