# Dependências

O **FastAPI** possui um poderoso, mas intuitivo sistema de **<abbr title="também conhecidos como, recursos, provedores, serviços, injetáveis">Injeção de Dependência</abbr>**.

Esse sistema foi pensado para ser fácil de usar, e permitir que qualquer desenvolvedor possa integrar facilmente outros componentes ao **FastAPI**.

## O que é "Injeção de Dependência"

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * A test which demonstrates maven's recursive inheritance where
 * a distinct value is taken from each parent contributing to
 * the final model of the project being assembled. There is no
 * overriding going on amongst the models being used in this test:

	}
	return e.EncodeToken(xml.EndElement{Name: start.Name})
}

// UnmarshalXML - decodes XML data.
func (d *Destination) UnmarshalXML(dec *xml.Decoder, start xml.StartElement) (err error) {
	// Make subtype to avoid recursive UnmarshalXML().
	type destination Destination
	dest := destination{}

	if err := dec.DecodeElement(&dest, &start); err != nil {
		return err
	}
	parsedDest, err := parseDestination(dest.Bucket)
	if err != nil {

			if err != nil {
				t.Fatalf("Got unexpected error: %v", err)
			}
			if got := cfg.Rules[0].MetadataReplicate(tc.opts); got != tc.expectedResult {
				t.Fatalf("Expected result with recursive set to false: `%v`, got: `%v`", tc.expectedResult, got)
			}
		})

	}

        println("Missing test class: $cnfe")
        null
      }
    }
}

/**
 * Builds a Junit Test Plan request for a fixed set of classes, or potentially a recursive package.
 */
fun buildRequest(selectors: List<DiscoverySelector>): LauncherDiscoveryRequest {
  val request: LauncherDiscoveryRequest =
    LauncherDiscoveryRequestBuilder.request()

	if err != nil {
		return err
	}
	defer a.CloseRespFn(resp.Body)

	return nil
}

// UnmarshalJSON - decodes JSON data.
func (a *Args) UnmarshalJSON(data []byte) error {
	// subtype to avoid recursive call to UnmarshalJSON()
	type subArgs Args
	var so subArgs

	if err := json.Unmarshal(data, &so); err != nil {
		return err
	}

	oa := Args(so)
	if oa.URL == nil || oa.URL.String() == "" {
		*a = oa

            logger.debug("While recursing: " + e.getMessage(), e);
            result.addCircularDependencyException(e);
        } catch (OverConstrainedVersionException e) {
            logger.debug("While recursing: " + e.getMessage(), e);
            result.addVersionRangeViolation(e);
        } catch (ArtifactResolutionException e) {
            logger.debug("While recursing: " + e.getMessage(), e);

  private double sumOfProductsOfDeltas = 0.0;

  /** Adds the given pair of values to the dataset. */
  public void add(double x, double y) {
    // We extend the recursive expression for the one-variable case at Art of Computer Programming
    // vol. 2, Knuth, 4.2.2, (16) to the two-variable case. We have two value series x_i and y_i.

        }
        if (mavenOptions.offline().orElse(false)) {
            cmdAndArguments.add("--offline");
        }
        if (mavenOptions.nonRecursive().orElse(false)) {
            cmdAndArguments.add("--non-recursive");
        }
        if (mavenOptions.updateSnapshots().orElse(false)) {
            cmdAndArguments.add("--update-snapshots");
        }
        if (mavenOptions.activatedProfiles().isPresent()) {

	},
	{
		"#ifndef foo\nhello",
		"unclosed #ifdef or #ifndef",
	},
	{
		"#ifdef foo\nhello\n#else\nbye",
		"unclosed #ifdef or #ifndef",
	},
	{
		"#define A() A()\nA()",
		"recursive macro invocation",
	},
	{
		"#define A a\n#define A a\n",
		"redefinition of macro",
	},
	{
		"#define A a",
		"no newline after macro definition",
	},
}