| /* |
| * 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.lang.ASTNode; |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.stubs.IStubElementType; |
| import com.jetbrains.python.PyElementTypes; |
| import com.jetbrains.python.PyTokenTypes; |
| import com.jetbrains.python.PythonDialectsTokenSetProvider; |
| import com.jetbrains.python.psi.*; |
| import com.jetbrains.python.psi.stubs.PyParameterListStub; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author yole |
| */ |
| public class PyParameterListImpl extends PyBaseElementImpl<PyParameterListStub> implements PyParameterList { |
| public PyParameterListImpl(ASTNode astNode) { |
| super(astNode); |
| } |
| |
| public PyParameterListImpl(final PyParameterListStub stub) { |
| this(stub, PyElementTypes.PARAMETER_LIST); |
| } |
| |
| public PyParameterListImpl(final PyParameterListStub stub, IStubElementType nodeType) { |
| super(stub, nodeType); |
| } |
| |
| @Override |
| protected void acceptPyVisitor(PyElementVisitor pyVisitor) { |
| pyVisitor.visitPyParameterList(this); |
| } |
| |
| public PyParameter[] getParameters() { |
| return getStubOrPsiChildren(PythonDialectsTokenSetProvider.INSTANCE.getParameterTokens(), new PyParameter[0]); |
| } |
| |
| public void addParameter(final PyNamedParameter param) { |
| PsiElement paren = getLastChild(); |
| if (paren != null && ")".equals(paren.getText())) { |
| ASTNode beforeWhat = paren.getNode(); // the closing paren will be this |
| PyParameter[] params = getParameters(); |
| final boolean hasDefaultValue = param.hasDefaultValue(); |
| boolean isLast = true; |
| for (PyParameter p : params) { |
| if (!hasDefaultValue && p.hasDefaultValue()) { |
| beforeWhat = p.getNode(); |
| isLast = false; |
| break; |
| } |
| if (p instanceof PyNamedParameter) { |
| PyNamedParameter named = (PyNamedParameter)p; |
| if (named.isKeywordContainer() || named.isPositionalContainer()) { |
| beforeWhat = p.getNode(); |
| isLast = false; |
| break; |
| } |
| } |
| } |
| final ASTNode previous = PyUtil.getPreviousNonWhitespace(beforeWhat); |
| PyUtil.addListNode(this, param, beforeWhat, !isLast || params.length == 0 || |
| previous.getElementType() == PyTokenTypes.COMMA, isLast, |
| beforeWhat.getElementType() != PyTokenTypes.RPAR); |
| } |
| } |
| |
| public boolean hasPositionalContainer() { |
| for (PyParameter parameter: getParameters()) { |
| if (parameter instanceof PyNamedParameter && ((PyNamedParameter) parameter).isPositionalContainer()) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public boolean hasKeywordContainer() { |
| for (PyParameter parameter: getParameters()) { |
| if (parameter instanceof PyNamedParameter && ((PyNamedParameter) parameter).isKeywordContainer()) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| @Nullable |
| public PyNamedParameter findParameterByName(@NotNull final String name) { |
| final Ref<PyNamedParameter> result = new Ref<PyNamedParameter>(); |
| ParamHelper.walkDownParamArray(getParameters(), new ParamHelper.ParamVisitor() { |
| @Override |
| public void visitNamedParameter(PyNamedParameter param, boolean first, boolean last) { |
| if (name.equals(param.getName())) { |
| result.set(param); |
| } |
| } |
| }); |
| return result.get(); |
| } |
| |
| public String getPresentableText(final boolean includeDefaultValue) { |
| final StringBuilder target = new StringBuilder(); |
| final String COMMA = ", "; |
| target.append("("); |
| ParamHelper.walkDownParamArray( |
| getParameters(), |
| new ParamHelper.ParamWalker() { |
| public void enterTupleParameter(PyTupleParameter param, boolean first, boolean last) { |
| target.append("("); |
| } |
| |
| public void leaveTupleParameter(PyTupleParameter param, boolean first, boolean last) { |
| target.append(")"); |
| if (!last) target.append(COMMA); |
| } |
| |
| public void visitNamedParameter(PyNamedParameter param, boolean first, boolean last) { |
| target.append(param.getRepr(includeDefaultValue)); |
| if (!last) target.append(COMMA); |
| } |
| |
| public void visitSingleStarParameter(PySingleStarParameter param, boolean first, boolean last) { |
| target.append('*'); |
| if (!last) target.append(COMMA); |
| } |
| } |
| ); |
| target.append(")"); |
| return target.toString(); |
| } |
| |
| @Nullable |
| @Override |
| public PyFunction getContainingFunction() { |
| final PsiElement parent = getStubOrPsiParent(); |
| return parent instanceof PyFunction ? (PyFunction) parent : null; |
| } |
| } |