Function compileService

packages/compiler/src/service_compiler.ts:23–58

(
  meta: R3ServiceMetadata,
  resolveForwardRefs: boolean,
)

}

export function compileService(
  meta: R3ServiceMetadata,
  resolveForwardRefs: boolean,
): R3CompiledExpression {
  const def = new DefinitionMap<{
    token: o.Expression;
    factory: o.Expression;
    autoProvided: o.Expression;
  }>();
  def.set('token', meta.type.value);
  def.set(
    'factory',
    meta.factory === undefined
      ? delegateToFactory(
          meta.type.value as o.WrappedNodeExpr<any>,
          meta.type.value as o.WrappedNodeExpr<any>,
          resolveForwardRefs,
        )
      : o.arrowFn([], meta.factory.callFn([])),
  );

  // Only generate providedIn property if it's different from the default.
  if (meta.autoProvided === false) {
    def.set('autoProvided', o.literal(false));
  }

  const expression = o
    .importExpr(Identifiers.defineService)
    .callFn([def.toLiteralMap()], undefined, true);

  return {
    expression,
    type: createInjectableType(meta.type.type, meta.typeArgumentCount),
    statements: [],
  };
}