PsiNameValuePairPattern.java

/*
 * Copyright 2000-2016 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.intellij.patterns;

import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiNameValuePair;
import com.intellij.util.ProcessingContext;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;

/**
 * @author peter
 */
public class PsiNameValuePairPattern extends PsiElementPattern<PsiNameValuePair, PsiNameValuePairPattern> {
  static final PsiNameValuePairPattern NAME_VALUE_PAIR_PATTERN = new PsiNameValuePairPattern();

  private PsiNameValuePairPattern() {
    super(PsiNameValuePair.class);
  }

  @NotNull
  public PsiNameValuePairPattern withName(@NotNull @NonNls final String requiredName) {
    return with(new PatternCondition<PsiNameValuePair>("withName") {
      public boolean accepts(@NotNull final PsiNameValuePair psiNameValuePair, final ProcessingContext context) {
        String actualName = psiNameValuePair.getName();
        return requiredName.equals(actualName) || actualName == null && "value".equals(requiredName);
      }
    });
  }

  @NotNull
  @Override
  public PsiNameValuePairPattern withName(@NotNull final ElementPattern<String> name) {
    return with(new PsiNamePatternCondition<PsiNameValuePair>("withName", name) {
      @Override
      public String getPropertyValue(@NotNull Object o) {
        if (o instanceof PsiNameValuePair) {
          final String nameValue = ((PsiNameValuePair)o).getName();
          return StringUtil.notNullize(nameValue, "value");
        }
        return null;
      }
    });
  }
}