Function addPropertyDirective

test/angular/1.7/angular.js:11069–11107

(node, directives, attrName, propName)

      return sanitizeSrcset($sce.valueOf(value), 'ng-prop-srcset');
    }
    function addPropertyDirective(node, directives, attrName, propName) {
      if (EVENT_HANDLER_ATTR_REGEXP.test(propName)) {
        throw $compileMinErr('nodomevents', 'Property bindings for HTML DOM event properties are disallowed');
      }

      var nodeName = nodeName_(node);
      var trustedContext = getTrustedPropContext(nodeName, propName);

      var sanitizer = identity;
      // Sanitize img[srcset] + source[srcset] values.
      if (propName === 'srcset' && (nodeName === 'img' || nodeName === 'source')) {
        sanitizer = sanitizeSrcsetPropertyValue;
      } else if (trustedContext) {
        sanitizer = $sce.getTrusted.bind($sce, trustedContext);
      }

      directives.push({
        priority: 100,
        compile: function ngPropCompileFn(_, attr) {
          var ngPropGetter = $parse(attr[attrName]);
          var ngPropWatch = $parse(attr[attrName], function sceValueOf(val) {
            // Unwrap the value to compare the actual inner safe value, not the wrapper object.
            return $sce.valueOf(val);
          });

          return {
            pre: function ngPropPreLinkFn(scope, $element) {
              function applyPropValue() {
                var propValue = ngPropGetter(scope);
                $element[0][propName] = sanitizer(propValue);
              }

              applyPropValue();
              scope.$watch(ngPropWatch, applyPropValue);
            }
          };
        }
      });
    }

    function addEventDirective(directives, attrName, eventName) {
      directives.push(