Function pushProvider

lib/assets/react-source/development/react.js:15599–15614

(providerFiber, nextValue)

	  }
	}
	function pushProvider(providerFiber, nextValue) {
	  var context = providerFiber.type._context;

	  {
	    push(valueCursor, context._currentValue, providerFiber);
	    context._currentValue = nextValue;

	    {
	      if (context._currentRenderer !== undefined && context._currentRenderer !== null && context._currentRenderer !== rendererSigil) {
	        error('Detected multiple renderers concurrently rendering the ' + 'same context provider. This is currently unsupported.');
	      }

	      context._currentRenderer = rendererSigil;
	    }
	  }
	}
	function popProvider(providerFiber) {
	  var currentValue = valueCursor.current;
	  pop(valueCursor, providerFiber);