org.checkerframework.framework.type.AnnotatedTypeParameterBounds Maven / Gradle / Ivy

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The Checker Framework enhances Java's type system to make it more powerful and useful. This lets software developers detect and prevent errors in their Java programs. The Checker Framework includes compiler plug-ins ("checkers") that find bugs or verify their absence. It also permits you to write your own compiler plug-ins.

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package org.checkerframework.framework.type;

import java.util.Objects;
import org.checkerframework.checker.nullness.qual.Nullable;

/** Represents upper and lower bounds, each an AnnotatedTypeMirror. */
public class AnnotatedTypeParameterBounds {
  private final AnnotatedTypeMirror upper;
  private final AnnotatedTypeMirror lower;

  public AnnotatedTypeParameterBounds(AnnotatedTypeMirror upper, AnnotatedTypeMirror lower) {
    this.upper = upper;
    this.lower = lower;
  }

  public AnnotatedTypeMirror getUpperBound() {
    return upper;
  }

  public AnnotatedTypeMirror getLowerBound() {
    return lower;
  }

  @Override
  public String toString() {
    return "[extends " + upper + " super " + lower + "]";
  }

  /**
   * Return a possibly-verbose string representation of this.
   *
   * @param verbose if true, returned representation is verbose
   * @return a possibly-verbose string representation of this
   */
  public String toString(boolean verbose) {
    return "[extends " + upper.toString(verbose) + " super " + lower.toString(verbose) + "]";
  }

  @Override
  public int hashCode() {
    return Objects.hash(upper, lower);
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    if (!(obj instanceof AnnotatedTypeParameterBounds)) {
      return false;
    }
    AnnotatedTypeParameterBounds other = (AnnotatedTypeParameterBounds) obj;
    return this.upper == null
        ? other.upper == null
        : (this.upper.equals(other.upper) && this.lower == null)
            ? other.lower == null
            : this.lower.equals(other.lower);
  }
}