Function convertToProviderExpression

packages/compiler/src/jit_compiler_facade.ts:817–829

* Convert the expression, if present to an `R3ProviderExpression`. * * In JIT mode we do not want the compiler to wrap the expression in a `forwardRef()` call because, * if it is referencing a type that has not yet been defined, it will have already been wrapped in * a `forwardRef()` - either by

(
  obj: any,
  property: string,
)

 * use `ForwardRefHandling.None`.
 */
function convertToProviderExpression(
  obj: any,
  property: string,
): MaybeForwardRefExpression | undefined {
  if (obj.hasOwnProperty(property)) {
    return createMayBeForwardRefExpression(
      new WrappedNodeExpr(obj[property]),
      ForwardRefHandling.None,
    );
  } else {
    return undefined;
  }
}

function wrapExpression(obj: any, property: string): WrappedNodeExpr<any> | undefined {
  if (obj.hasOwnProperty(property)) {