NumpyClassMembersProvider.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.jetbrains.numpy.codeInsight;

import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiReference;
import com.jetbrains.python.PyNames;
import com.jetbrains.python.codeInsight.PyCustomMember;
import com.jetbrains.python.psi.PyFunction;
import com.jetbrains.python.psi.types.PyClassMembersProviderBase;
import com.jetbrains.python.psi.types.PyClassType;
import com.jetbrains.python.psi.types.TypeEvalContext;
import org.jetbrains.annotations.NotNull;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

/**
 *
 * User : ktisha
 */
public class NumpyClassMembersProvider extends PyClassMembersProviderBase {

  @NotNull
  @Override
  public Collection<PyCustomMember> getMembers(PyClassType clazz, PsiElement location, TypeEvalContext typeEvalContext) {
    if (location != null && clazz.getPyClass().isSubclass(PyNames.TYPES_FUNCTION_TYPE, typeEvalContext)) {
      final PsiElement element = location.getOriginalElement();
      final PsiReference reference = element.getReference();
      if (reference != null) {
        final PsiElement resolved = reference.resolve();
        if (resolved instanceof PyFunction) {
          final List<PyCustomMember> result = new ArrayList<>();
          if (NumpyUfuncs.isUFunc(((PyFunction)resolved).getName()) && NumpyDocStringTypeProvider.isInsideNumPy(resolved)) {
            for (String method : NumpyUfuncs.UFUNC_METHODS) {
              result.add(new PyCustomMember(method, resolved));
            }
            return result;
          }
        }
      }
    }
    return Collections.emptyList();
  }

}