python/pluginSrc/com/jetbrains/python/psi/impl/PyJavaMethodType.java


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/*
 * Copyright 2000-2013 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.python.psi.impl;

import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiMethod;
import com.intellij.util.ArrayUtil;
import com.intellij.util.ProcessingContext;
import com.jetbrains.python.psi.AccessDirection;
import com.jetbrains.python.psi.PyExpression;
import com.jetbrains.python.psi.PyQualifiedExpression;
import com.jetbrains.python.psi.resolve.PyResolveContext;
import com.jetbrains.python.psi.resolve.RatedResolveResult;
import com.jetbrains.python.psi.types.PyCallableParameter;
import com.jetbrains.python.psi.types.PyCallableType;
import com.jetbrains.python.psi.types.PyType;
import com.jetbrains.python.psi.types.TypeEvalContext;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.Collections;
import java.util.List;

/**
 * @author yole
 */
public class PyJavaMethodType implements PyCallableType {
  private final PsiMethod myMethod;

  public PyJavaMethodType(PsiMethod method) {
    myMethod = method;
  }

  @Override
  public boolean isCallable() {
    return true;
  }

  @Nullable
  @Override
  public PyType getReturnType(@NotNull TypeEvalContext context) {
    return PyJavaTypeProvider.asPyType(myMethod.getReturnType());
  }

  @Nullable
  @Override
  public PyType getCallType(@NotNull TypeEvalContext context, @NotNull PyQualifiedExpression callSite) {
    return getReturnType(context);
  }

  @Nullable
  @Override
  public List<PyCallableParameter> getParameters(@NotNull TypeEvalContext context) {
    return null;
  }

  @Nullable
  @Override
  public List<? extends RatedResolveResult> resolveMember(@NotNull String name,
                                                          @Nullable PyExpression location,
                                                          @NotNull AccessDirection direction,
                                                          @NotNull PyResolveContext resolveContext) {
    return Collections.emptyList();
  }

  @Override
  public Object[] getCompletionVariants(String completionPrefix, PsiElement location, ProcessingContext context) {
    return ArrayUtil.EMPTY_OBJECT_ARRAY;
  }

  @Nullable
  @Override
  public String getName() {
    final PsiClass cls = myMethod.getContainingClass();
    return "Java method(" + (cls != null ? cls.getQualifiedName() : cls) + "." + myMethod.getName() + ")";
  }

  @Override
  public boolean isBuiltin() {
    return false;
  }

  @Override
  public void assertValid(String message) {
  }
}