PyCallExpressionImpl.java

/*
 * Copyright 2000-2017 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.lang.ASTNode;
import com.intellij.psi.PsiElement;
import com.jetbrains.python.psi.*;
import com.jetbrains.python.psi.resolve.PyResolveContext;
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.List;

/**
 * @author yole
 */
public class PyCallExpressionImpl extends PyElementImpl implements PyCallExpression {

  public PyCallExpressionImpl(ASTNode astNode) {
    super(astNode);
  }

  @Override
  protected void acceptPyVisitor(PyElementVisitor pyVisitor) {
    pyVisitor.visitPyCallExpression(this);
  }

  @Nullable
  public PyExpression getCallee() {
    // peel off any parens, because we may have smth like (lambda x: x+1)(2)
    PsiElement seeker = getFirstChild();
    while (seeker instanceof PyParenthesizedExpression) seeker = ((PyParenthesizedExpression)seeker).getContainedExpression();
    return seeker instanceof PyExpression ? (PyExpression) seeker : null;
  }

  @NotNull
  @Override
  public List<PyRatedMarkedCallee> multiResolveRatedCallee(@NotNull PyResolveContext resolveContext, int implicitOffset) {
    return PyCallExpressionHelper.multiResolveRatedCallee(this, resolveContext, implicitOffset);
  }

  @NotNull
  @Override
  public List<PyArgumentsMapping> multiMapArguments(@NotNull PyResolveContext resolveContext, int implicitOffset) {
    return PyCallExpressionHelper.multiMapArguments(this, resolveContext, implicitOffset);
  }

  @Override
  public String toString() {
    return "PyCallExpression: " + PyUtil.getReadableRepr(getCallee(), true); //or: getCalledFunctionReference().getReferencedName();
  }

  public PyType getType(@NotNull TypeEvalContext context, @NotNull TypeEvalContext.Key key) {
    return PyCallExpressionHelper.getCallType(this, context);
  }
}