RangeGenerator(T begin, T end, IncrementT step)
      : begin_(begin), end_(end),
        step_(step), end_index_(CalculateEndIndex(begin, end, step)) {}
  virtual ~RangeGenerator() {}

  virtual ParamIteratorInterface<T>* Begin() const {
    return new Iterator(this, begin_, 0, step_);
  }
  virtual ParamIteratorInterface<T>* End() const {
    return new Iterator(this, end_, end_index_, step_);
  }

 private:

  RangeGenerator(T begin, T end, IncrementT step)
      : begin_(begin), end_(end),
        step_(step), end_index_(CalculateEndIndex(begin, end, step)) {}
  virtual ~RangeGenerator() {}

  virtual ParamIteratorInterface<T>* Begin() const {
    return new Iterator(this, begin_, 0, step_);
  }
  virtual ParamIteratorInterface<T>* End() const {
    return new Iterator(this, end_, end_index_, step_);
  }

 private:

        step1.matches("ac")
        step1.matches("abac")
        !step1.matches("bc")
        !step1.matches("ab")
        !step1.matches("a")
        !step1.matches("c")

        and:
        def step2 = PatternStepFactory.getStep("a**c", true);
        step2 instanceof HasPrefixAndSuffixPatternStep

        step2.matches("ac")
        step2.matches("abac")
        !step2.matches("bc")

                  end_, end, end_ty), node)
          end = end_

        if step is None:
          step = self._ssa_name('step')
          self._emit_with_loc('\n{} = arith.constant 1 : index'.format(step),
                              node)
        elif step_ty != TFRTypes.INDEX:
          step_ = self._ssa_name('step')
          self._emit_with_loc(
              '\n{} = arith.index_cast {} : {} to index'.format(

        super(indexSettings, name, settings);

        step1 = settings.getAsBoolean("step1", true);
        step2 = settings.getAsBoolean("step2", true);
        step3 = settings.getAsBoolean("step3", true);
        step4 = settings.getAsBoolean("step4", true);
        step5 = settings.getAsBoolean("step5", true);
        step6 = settings.getAsBoolean("step6", true);
    }

    @Override

    // Step 1 is not cancelled because it was done.
    assertWithMessage("step1.statusFuture().isCancelled()")
        .that(step1.statusFuture().isCancelled())
        .isFalse();
    // But its closeable is closed.
    assertClosed(closeable1);

    // Step 2 is cancelled because it wasn't complete.
    assertWithMessage("step2.statusFuture().isCancelled()")
        .that(step2.statusFuture().isCancelled())
        .isTrue();

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.internal.execution.steps;

import org.gradle.internal.execution.UnitOfWork;

public interface Step<C extends Context, R extends Result> {
    R execute(UnitOfWork work, C context);

    // Step 1 is not cancelled because it was done.
    assertWithMessage("step1.statusFuture().isCancelled()")
        .that(step1.statusFuture().isCancelled())
        .isFalse();
    // But its closeable is closed.
    assertClosed(closeable1);

    // Step 2 is cancelled because it wasn't complete.
    assertWithMessage("step2.statusFuture().isCancelled()")
        .that(step2.statusFuture().isCancelled())
        .isTrue();

## ステップ毎の要約

### Step 1: `FastAPI`をインポート

```Python hl_lines="1"
{!../../../docs_src/first_steps/tutorial001.py!}
```

`FastAPI`は、APIのすべての機能を提供するPythonクラスです。

!!! note "技術詳細"
    `FastAPI`は`Starlette`を直接継承するクラスです。

    `FastAPI`でも<a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a>のすべての機能を利用可能です。

### Step 2: `FastAPI`の「インスタンス」を生成

    Thông tin ở đây được biểu thị như là một chỉ dẫn, không phải là một yêu cầu bắt buộc.

    Ví dụ, khi sử dụng GraphQL bạn thông thường thực hiện tất cả các hành động chỉ bằng việc sử dụng các toán tử `POST`.

### Step 4: Định nghĩa **hàm cho đường dẫn toán tử**

Đây là "**hàm cho đường dẫn toán tử**":

* **đường dẫn**: là `/`.
* **toán tử**: là `get`.
* **hàm**: là hàm bên dưới "decorator" (bên dưới `@app.get("/")`).