org.checkerframework.checker.calledmethods.builder.BuilderFrameworkSupportUtils Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of checker Show documentation

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.

There is a newer version: 3.43.0

Show newest version

package org.checkerframework.checker.calledmethods.builder;

import javax.lang.model.type.TypeMirror;

/** A utility class of static methods used in supporting builder-generation frameworks. */
public class BuilderFrameworkSupportUtils {
  /** This class is non-instantiable. */
  private BuilderFrameworkSupportUtils() {
    throw new Error("Do not instantiate");
  }

  /**
   * Returns true if the given type is one of the immutable collections defined in
   * com.google.common.collect.
   *
   * @param type a type
   * @return true if the type is a Guava immutable collection
   */
  public static boolean isGuavaImmutableType(TypeMirror type) {
    return type.toString().startsWith("com.google.common.collect.Immutable");
  }

  /**
   * Capitalizes the first letter of the given string.
   *
   * @param prop a String
   * @return the same String, but with the first character capitalized
   */
  public static String capitalize(String prop) {
    return prop.substring(0, 1).toUpperCase() + prop.substring(1);
  }
}