python/psi-api/src/com/jetbrains/python/psi/impl/PyTypeProvider.java

/*
 * 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.openapi.extensions.ExtensionPointName;
import com.intellij.psi.PsiElement;
import com.jetbrains.python.psi.*;
import com.jetbrains.python.psi.types.PyType;
import com.jetbrains.python.psi.types.TypeEvalContext;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * @author yole
 */
public interface PyTypeProvider {
  ExtensionPointName<PyTypeProvider> EP_NAME = ExtensionPointName.create("Pythonid.typeProvider");

  @Nullable
  PyType getReferenceExpressionType(@NotNull PyReferenceExpression referenceExpression, @NotNull TypeEvalContext context);

  @Nullable
  PyType getReferenceType(@NotNull PsiElement referenceTarget, TypeEvalContext context, @Nullable PsiElement anchor);

  @Nullable
  PyType getParameterType(@NotNull PyNamedParameter param, @NotNull PyFunction func, @NotNull TypeEvalContext context);

  @Nullable
  PyType getReturnType(@NotNull Callable callable, @NotNull TypeEvalContext context);

  @Nullable
  PyType getCallType(@NotNull PyFunction function, @Nullable PyCallSiteExpression callSite, @NotNull TypeEvalContext context);

  @Nullable
  PyType getContextManagerVariableType(PyClass contextManager, PyExpression withExpression, TypeEvalContext context);

  @Nullable
  PyType getCallableType(@NotNull Callable callable, @NotNull TypeEvalContext context);
}