Inherited properties are partially nullable

[wol-soft]

Describe the bug
When using compositions the properties of the compositions are transferred to the main object. Independently of the implicitNull setting and the required state of the properties which are transferred from a composition the function signatures for getters and the DocBlocks for the properties are nullable.

With implicitNull setters of required properties become also nullable (although the validation performs correct checks and it will consequently fail if null is provided). Should be solved via the function signature.

Schema

{
  "$id": "Person",
  "allOf": [
    {
      "type": "object",
      "properties": {
        "age": {
          "type": "integer",
          "description": "The age of the person",
          "example": 42
        }
      }
    },
    {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "description": "The name of the person",
          "example": "Lawrence"
        }
      },
      "required": [
        "name"
      ]
    }
  ]
}

implicitNull disabled

generated interface

        /** @var int|null The age of the person */
        protected $age = NULL;
        /** @var string|null The name of the person */
        protected $name = NULL;

        public function getAge(): ?int
        public function setAge(int $age): self
        public function getName(): ?string
        public function setName(string $name): self

expected interface

        /** @var int|null The age of the person */
        protected $age = NULL;
        /** @var string The name of the person */
        protected $name;

        public function getAge(): ?int
        public function setAge(int $age): self
        public function getName(): string
        public function setName(string $name): self

implicitNull enabled

generated interface

        /** @var int|null The age of the person */
        protected $age = NULL;
        /** @var string|null The name of the person */
        protected $name = NULL;

        public function getAge(): ?int
        public function setAge(?int $age): self
        public function getName(): ?string
        public function setName(?string $name): self

expected interface

        /** @var int|null The age of the person */
        protected $age = NULL;
        /** @var string The name of the person */
        protected $name;

        public function getAge(): ?int
        public function setAge(?int $age): self
        public function getName(): string
        public function setName(string $name): self

Version:
all versions

[wol-soft]

This behaviour only applies to the allOf composition as for all other compositions it can't be ensured the property must be set. Consequently for all other compositions the properties are set to nullable on the main object.

If the internal state of the object gets invalid by changing a property to null an exception will be thrown as the validations are executed. (compare changes made by the CompositionValidationPostProcessor)