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AbstractTextEdit.java
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AbstractTextEdit.java
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/*
* Copyright (C) 2006, 2007 Dennis Hunziker, Ueli Kistler
* Copyright (C) 2007 Reto Schuettel, Robin Stocker
*
* IFS Institute for Software, HSR Rapperswil, Switzerland
*
*/
package org.python.pydev.refactoring.core.edit;
import org.eclipse.text.edits.TextEdit;
import org.python.pydev.core.MisconfigurationException;
import org.python.pydev.parser.jython.SimpleNode;
import org.python.pydev.parser.prettyprinterv2.MakeAstValidForPrettyPrintingVisitor;
import org.python.pydev.refactoring.ast.adapters.AbstractScopeNode;
import org.python.pydev.refactoring.ast.adapters.AdapterPrefs;
import org.python.pydev.refactoring.ast.adapters.IASTNodeAdapter;
import org.python.pydev.refactoring.ast.adapters.ModuleAdapter;
import org.python.pydev.refactoring.ast.factory.PyAstFactory;
import org.python.pydev.refactoring.ast.visitors.NodeHelper;
import org.python.pydev.refactoring.ast.visitors.rewriter.Rewriter;
import org.python.pydev.refactoring.core.request.IExtractMethodRefactoringRequest;
import org.python.pydev.refactoring.core.request.IRefactoringRequest;
public abstract class AbstractTextEdit {
private static final String WHITESPACE = " ";
private static final String REPLACE_PATTERN = "\\r\\n|\\n|\\r";
protected ModuleAdapter moduleAdapter;
protected IASTNodeAdapter<? extends SimpleNode> offsetAdapter;
protected NodeHelper nodeHelper;
protected AdapterPrefs adapterPrefs;
protected PyAstFactory astFactory;
private AbstractScopeNode<?> scopeAdapter;
public AbstractTextEdit(IRefactoringRequest req) {
this.moduleAdapter = req.getOffsetNode().getModule();
this.offsetAdapter = req.getOffsetNode();
if(req instanceof IExtractMethodRefactoringRequest){
this.scopeAdapter = ((IExtractMethodRefactoringRequest)req).getScopeAdapter();
}
this.nodeHelper = new NodeHelper(req.getAdapterPrefs());
this.adapterPrefs = req.getAdapterPrefs();
this.astFactory = new PyAstFactory(this.nodeHelper.getAdapterPrefs());
}
protected abstract SimpleNode getEditNode() throws MisconfigurationException;
public abstract TextEdit getEdit() throws MisconfigurationException;
protected String getFormattedNode() throws MisconfigurationException {
SimpleNode node = getEditNode().createCopy();
try{
MakeAstValidForPrettyPrintingVisitor.makeValid(node);
}catch(Exception e){
throw new RuntimeException(e);
}
String source = Rewriter.createSourceFromAST(node, this.adapterPrefs);
return getIndentedSource(node, source, getIndent());
}
private String getIndentedSource(SimpleNode node, String source, int indent) {
StringBuilder indented = new StringBuilder();
String indentation = getIndentation(indent);
if(nodeHelper.isFunctionDef(node)){
indented.append(this.adapterPrefs.endLineDelim);
}
indented.append(indentation);
source = source.replaceAll(REPLACE_PATTERN, this.adapterPrefs.endLineDelim + indentation);
source = source.trim();
indented.append(source);
indented.append(this.adapterPrefs.endLineDelim);
if(nodeHelper.isFunctionDef(node)){
indented.append(this.adapterPrefs.endLineDelim);
}
return indented.toString();
}
protected String getIndentation(int indent) {
StringBuilder buf = new StringBuilder();
for(int i = 0; i < indent; i++){
buf.append(WHITESPACE);
}
return buf.toString();
}
public abstract int getOffsetStrategy();
public int getOffset() {
return moduleAdapter.getOffset(offsetAdapter, getOffsetStrategy(), this.scopeAdapter);
}
public int getIndent() {
return offsetAdapter.getNodeBodyIndent();
}
}