+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package net.sourceforge.phpdt.internal.corext.template.php;
-
-import java.lang.reflect.InvocationTargetException;
-
-import net.sourceforge.phpdt.core.ICompilationUnit;
-import net.sourceforge.phpdt.internal.corext.Assert;
-import net.sourceforge.phpdt.internal.corext.template.php.CompilationUnitCompletion.LocalVariable;
-import net.sourceforge.phpdt.internal.corext.util.Strings;
-import net.sourceforge.phpdt.internal.ui.preferences.CodeFormatterPreferencePage;
-import net.sourceforge.phpdt.internal.ui.text.template.contentassist.MultiVariable;
-import net.sourceforge.phpdt.internal.ui.util.ExceptionHandler;
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.jface.dialogs.MessageDialog;
-import org.eclipse.jface.preference.IPreferenceStore;
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.Document;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.templates.Template;
-import org.eclipse.jface.text.templates.TemplateBuffer;
-import org.eclipse.jface.text.templates.TemplateContextType;
-import org.eclipse.jface.text.templates.TemplateException;
-import org.eclipse.jface.text.templates.TemplateTranslator;
-import org.eclipse.jface.text.templates.TemplateVariable;
-import org.eclipse.swt.widgets.Shell;
-
-/**
- * A context for java source.
- */
-public class JavaContext extends CompilationUnitContext {
-
- /** The platform default line delimiter. */
- private static final String PLATFORM_LINE_DELIMITER = System.getProperty("line.separator"); //$NON-NLS-1$
-
- /** A code completion requestor for guessing local variable names. */
- private CompilationUnitCompletion fCompletion;
-
- /**
- * Creates a java template context.
- *
- * @param type
- * the context type.
- * @param document
- * the document.
- * @param completionOffset
- * the completion offset within the document.
- * @param completionLength
- * the completion length.
- * @param compilationUnit
- * the compilation unit (may be <code>null</code>).
- */
- public JavaContext(TemplateContextType type, IDocument document, int completionOffset, int completionLength,
- ICompilationUnit compilationUnit) {
- super(type, document, completionOffset, completionLength, compilationUnit);
- }
-
- /**
- * Returns the indentation level at the position of code completion.
- */
- private int getIndentation() {
- int start = getStart();
- IDocument document = getDocument();
- try {
- IRegion region = document.getLineInformationOfOffset(start);
- String lineContent = document.get(region.getOffset(), region.getLength());
- return Strings.computeIndent(lineContent, CodeFormatterPreferencePage.getTabSize());
- // return Strings.computeIndent(lineContent, CodeFormatterUtil.getTabWidth());
- } catch (BadLocationException e) {
- return 0;
- }
- }
-
- /*
- * @see TemplateContext#evaluate(Template template)
- */
- public TemplateBuffer evaluate(Template template) throws BadLocationException, TemplateException {
-
- if (!canEvaluate(template))
- throw new TemplateException(JavaTemplateMessages.getString("Context.error.cannot.evaluate")); //$NON-NLS-1$
-
- TemplateTranslator translator = new TemplateTranslator() {
- /*
- * @see org.eclipse.jface.text.templates.TemplateTranslator#createVariable(java.lang.String, java.lang.String, int[])
- */
- protected TemplateVariable createVariable(String type, String name, int[] offsets) {
- return new MultiVariable(type, name, offsets);
- }
- };
- TemplateBuffer buffer = translator.translate(template);
-
- getContextType().resolve(buffer, this);
- String lineDelimiter = null;
- try {
- lineDelimiter = getDocument().getLineDelimiter(0);
- } catch (BadLocationException e) {
- }
-
- if (lineDelimiter == null)
- lineDelimiter = PLATFORM_LINE_DELIMITER;
- IPreferenceStore prefs = PHPeclipsePlugin.getDefault().getPreferenceStore();
- // axelcl start
- // boolean useCodeFormatter = prefs.getBoolean(PreferenceConstants.TEMPLATES_USE_CODEFORMATTER);
- boolean useCodeFormatter = false;
- // axelcl end
-
- JavaFormatter formatter = new JavaFormatter(lineDelimiter, getIndentation(), useCodeFormatter);
- formatter.format(buffer, this);
- // debug start
- // String res = buffer.getString();
- // res = res.replaceAll("\n","/n");
- // res = res.replaceAll("\t","/t");
- // System.out.println(res);
- // debug end
- return buffer;
- }
-
- /*
- * @see TemplateContext#canEvaluate(Template templates)
- */
- public boolean canEvaluate(Template template) {
- String key = getKey();
-
- if (fForceEvaluation)
- return true;
-
- return template.matches(key, getContextType().getId()) && key.length() != 0
- && template.getName().toLowerCase().startsWith(key.toLowerCase());
- }
-
- public boolean canEvaluate(String identifier) {
- String prefix = getKey();
- return identifier.toLowerCase().startsWith(prefix.toLowerCase());
- }
-
- /*
- * @see DocumentTemplateContext#getCompletionPosition();
- */
- public int getStart() {
-
- try {
- IDocument document = getDocument();
-
- if (getCompletionLength() == 0) {
-
- int start = getCompletionOffset();
- while ((start != 0) && Character.isUnicodeIdentifierPart(document.getChar(start - 1)))
- start--;
-
- if ((start != 0) && (Character.isUnicodeIdentifierStart(document.getChar(start - 1))||(document.getChar(start - 1)=='$') ))
- start--;
-
- return start;
-
- } else {
-
- int start = getCompletionOffset();
- int end = getCompletionOffset() + getCompletionLength();
-
- while (start != 0 && Character.isUnicodeIdentifierPart(document.getChar(start - 1)))
- start--;
- if ((start != 0) && (Character.isUnicodeIdentifierStart(document.getChar(start - 1))||(document.getChar(start - 1)=='$') ))
- start--;
- while (start != end && Character.isWhitespace(document.getChar(start)))
- start++;
-
- if (start == end)
- start = getCompletionOffset();
-
- return start;
- }
-
- } catch (BadLocationException e) {
- return super.getStart();
- }
- }
-
- /*
- * @see net.sourceforge.phpdt.internal.corext.template.DocumentTemplateContext#getEnd()
- */
- public int getEnd() {
-
- if (getCompletionLength() == 0)
- return super.getEnd();
-
- try {
- IDocument document = getDocument();
-
- int start = getCompletionOffset();
- int end = getCompletionOffset() + getCompletionLength();
-
- while (start != end && Character.isWhitespace(document.getChar(end - 1)))
- end--;
-
- return end;
-
- } catch (BadLocationException e) {
- return super.getEnd();
- }
- }
-
- /*
- * @see net.sourceforge.phpdt.internal.corext.template.DocumentTemplateContext#getKey()
- */
- public String getKey() {
-
-// if (getCompletionLength() == 0) {
-// return super.getKey();
-// }
-
- try {
- IDocument document = getDocument();
-
- int start = getStart();
- int end = getCompletionOffset();
- return start <= end ? document.get(start, end - start) : ""; //$NON-NLS-1$
-
- } catch (BadLocationException e) {
- return super.getKey();
- }
- }
-
- /**
- * Returns the character before start position of completion.
- */
- public char getCharacterBeforeStart() {
- int start = getStart();
-
- try {
- return start == 0 ? ' ' : getDocument().getChar(start - 1);
-
- } catch (BadLocationException e) {
- return ' ';
- }
- }
-
- private static void handleException(Shell shell, Exception e) {
- String title = JavaTemplateMessages.getString("JavaContext.error.title"); //$NON-NLS-1$
- if (e instanceof CoreException)
- ExceptionHandler.handle((CoreException) e, shell, title, null);
- else if (e instanceof InvocationTargetException)
- ExceptionHandler.handle((InvocationTargetException) e, shell, title, null);
- else {
- PHPeclipsePlugin.log(e);
- MessageDialog.openError(shell, title, e.getMessage());
- }
- }
-
- // private CompilationUnitCompletion getCompletion() {
- // ICompilationUnit compilationUnit= getCompilationUnit();
- // if (fCompletion == null) {
- // fCompletion= new CompilationUnitCompletion(compilationUnit);
- //
- // if (compilationUnit != null) {
- // try {
- // compilationUnit.codeComplete(getStart(), fCompletion);
- // } catch (JavaModelException e) {
- // // ignore
- // }
- // }
- // }
- //
- // return fCompletion;
- // }
-
- /**
- * Returns the name of a guessed local array, <code>null</code> if no local array exists.
- */
- // public String guessArray() {
- // return firstOrNull(guessArrays());
- // }
- /**
- * Returns the name of a guessed local array, <code>null</code> if no local array exists.
- */
- // public String[] guessArrays() {
- // CompilationUnitCompletion completion= getCompletion();
- // LocalVariable[] localArrays= completion.findLocalArrays();
- //
- // String[] ret= new String[localArrays.length];
- // for (int i= 0; i < ret.length; i++) {
- // ret[ret.length - i - 1]= localArrays[i].name;
- // }
- // return ret;
- // }
- /**
- * Returns the name of the type of a local array, <code>null</code> if no local array exists.
- */
- // public String guessArrayType() {
- // return firstOrNull(guessArrayTypes());
- // }
- private String firstOrNull(String[] strings) {
- if (strings.length > 0)
- return strings[0];
- else
- return null;
- }
-
- /**
- * Returns the name of the type of a local array, <code>null</code> if no local array exists.
- */
- // public String[][] guessGroupedArrayTypes() {
- // CompilationUnitCompletion completion= getCompletion();
- // LocalVariable[] localArrays= completion.findLocalArrays();
- //
- // String[][] ret= new String[localArrays.length][];
- //
- // for (int i= 0; i < localArrays.length; i++) {
- // String type= getArrayTypeFromLocalArray(completion, localArrays[localArrays.length - i - 1]);
- // ret[i]= new String[] {type};
- // }
- //
- // return ret;
- // }
- /**
- * Returns the name of the type of a local array, <code>null</code> if no local array exists.
- */
- // public String[] guessArrayTypes() {
- // CompilationUnitCompletion completion= getCompletion();
- // LocalVariable[] localArrays= completion.findLocalArrays();
- //
- // List ret= new ArrayList();
- //
- // for (int i= 0; i < localArrays.length; i++) {
- // String type= getArrayTypeFromLocalArray(completion, localArrays[localArrays.length - i - 1]);
- // if (!ret.contains(type))
- // ret.add(type);
- // }
- //
- // return (String[]) ret.toArray(new String[ret.size()]);
- // }
- private String getArrayTypeFromLocalArray(CompilationUnitCompletion completion, LocalVariable array) {
- String arrayTypeName = array.typeName;
- String typeName = getScalarType(arrayTypeName);
- int dimension = getArrayDimension(arrayTypeName) - 1;
- Assert.isTrue(dimension >= 0);
-
- String qualifiedName = createQualifiedTypeName(array.typePackageName, typeName);
- String innerTypeName = completion.simplifyTypeName(qualifiedName);
-
- return innerTypeName == null ? createArray(typeName, dimension) : createArray(innerTypeName, dimension);
- }
-
- private static String createArray(String type, int dimension) {
- StringBuffer buffer = new StringBuffer(type);
- for (int i = 0; i < dimension; i++)
- buffer.append("[]"); //$NON-NLS-1$
- return buffer.toString();
- }
-
- private static String getScalarType(String type) {
- return type.substring(0, type.indexOf('['));
- }
-
- private static int getArrayDimension(String type) {
-
- int dimension = 0;
- int index = type.indexOf('[');
-
- while (index != -1) {
- dimension++;
- index = type.indexOf('[', index + 1);
- }
-
- return dimension;
- }
-
- private static String createQualifiedTypeName(String packageName, String className) {
- StringBuffer buffer = new StringBuffer();
-
- if (packageName.length() != 0) {
- buffer.append(packageName);
- buffer.append('.');
- }
- buffer.append(className);
-
- return buffer.toString();
- }
-
- /**
- * Returns a proposal for a variable name of a local array element, <code>null</code> if no local array exists.
- */
- // public String guessArrayElement() {
- // return firstOrNull(guessArrayElements());
- // }
- /**
- * Returns a proposal for a variable name of a local array element, <code>null</code> if no local array exists.
- */
- // public String[] guessArrayElements() {
- // ICompilationUnit cu= getCompilationUnit();
- // if (cu == null) {
- // return new String[0];
- // }
- //
- // CompilationUnitCompletion completion= getCompletion();
- // LocalVariable[] localArrays= completion.findLocalArrays();
- //
- // List ret= new ArrayList();
- //
- // for (int i= 0; i < localArrays.length; i++) {
- // int idx= localArrays.length - i - 1;
- //
- // LocalVariable var= localArrays[idx];
- //
- // IJavaProject project= cu.getJavaProject();
- // String typeName= var.typeName;
- // String baseTypeName= typeName.substring(0, typeName.lastIndexOf('['));
- //
- // String indexName= getIndex();
- // String[] excludedNames= completion.getLocalVariableNames();
- // if (indexName != null) {
- // ArrayList excludedNamesList= new ArrayList(Arrays.asList(excludedNames));
- // excludedNamesList.add(indexName);
- // excludedNames= (String[])excludedNamesList.toArray(new String[excludedNamesList.size()]);
- // }
- // String[] proposals= NamingConventions.suggestLocalVariableNames(project, var.typePackageName, baseTypeName, 0, excludedNames);
- // for (int j= 0; j < proposals.length; j++) {
- // if (!ret.contains(proposals[j]))
- // ret.add(proposals[j]);
- // }
- // }
- //
- // return (String[]) ret.toArray(new String[ret.size()]);
- // }
- /**
- * Returns a proposal for a variable name of a local array element, <code>null</code> if no local array exists.
- */
- // public String[][] guessGroupedArrayElements() {
- // ICompilationUnit cu= getCompilationUnit();
- // if (cu == null) {
- // return new String[0][];
- // }
- //
- // CompilationUnitCompletion completion= getCompletion();
- // LocalVariable[] localArrays= completion.findLocalArrays();
- //
- // String[][] ret= new String[localArrays.length][];
- //
- // for (int i= 0; i < localArrays.length; i++) {
- // int idx= localArrays.length - i - 1;
- //
- // LocalVariable var= localArrays[idx];
- //
- // IJavaProject project= cu.getJavaProject();
- // String typeName= var.typeName;
- // int dim= -1; // we expect at least one array
- // int lastIndex= typeName.length();
- // int bracket= typeName.lastIndexOf('[');
- // while (bracket != -1) {
- // lastIndex= bracket;
- // dim++;
- // bracket= typeName.lastIndexOf('[', bracket - 1);
- // }
- // typeName= typeName.substring(0, lastIndex);
- //
- // String indexName= getIndex();
- // String[] excludedNames= completion.getLocalVariableNames();
- // if (indexName != null) {
- // ArrayList excludedNamesList= new ArrayList(Arrays.asList(excludedNames));
- // excludedNamesList.add(indexName);
- // excludedNames= (String[])excludedNamesList.toArray(new String[excludedNamesList.size()]);
- // }
- // String[] proposals= NamingConventions.suggestLocalVariableNames(project, var.typePackageName, typeName, dim, excludedNames);
- //
- // ret[i]= proposals;
- // }
- //
- // return ret;
- // }
- /**
- * Returns an array index name. 'i', 'j', 'k' are tried until no name collision with an existing local variable occurs. If all
- * names collide, <code>null</code> is returned.
- */
- // public String getIndex() {
- // CompilationUnitCompletion completion= getCompletion();
- // String[] proposals= {"i", "j", "k"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
- //
- // for (int i= 0; i != proposals.length; i++) {
- // String proposal = proposals[i];
- //
- // if (!completion.existsLocalName(proposal))
- // return proposal;
- // }
- //
- // return null;
- // }
- /**
- * Returns the name of a local collection, <code>null</code> if no local collection exists.
- */
- // public String guessCollection() {
- // return firstOrNull(guessCollections());
- // }
- /**
- * Returns the names of local collections.
- */
- // public String[] guessCollections() {
- // CompilationUnitCompletion completion= getCompletion();
- // try {
- // LocalVariable[] localCollections= completion.findLocalCollections();
- // String[] ret= new String[localCollections.length];
- // for (int i= 0; i < ret.length; i++) {
- // ret[ret.length - i - 1]= localCollections[i].name;
- // }
- //
- // return ret;
- //
- // } catch (JavaModelException e) {
- // JavaPlugin.log(e);
- // }
- //
- // return new String[0];
- // }
- /**
- * Returns an iterator name ('iter'). If 'iter' already exists as local variable, <code>null</code> is returned.
- */
- // public String getIterator() {
- // CompilationUnitCompletion completion= getCompletion();
- // String[] proposals= {"iter"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
- //
- // for (int i= 0; i != proposals.length; i++) {
- // String proposal = proposals[i];
- //
- // if (!completion.existsLocalName(proposal))
- // return proposal;
- // }
- //
- // return null;
- // }
- // public void addIteratorImport() {
- // ICompilationUnit cu= getCompilationUnit();
- // if (cu == null) {
- // return;
- // }
- //
- // try {
- // Position position= new Position(getCompletionOffset(), getCompletionLength());
- // IDocument document= getDocument();
- // final String category= "__template_position_importer" + System.currentTimeMillis(); //$NON-NLS-1$
- // IPositionUpdater updater= new DefaultPositionUpdater(category);
- // document.addPositionCategory(category);
- // document.addPositionUpdater(updater);
- // document.addPosition(position);
- //
- // CodeGenerationSettings settings= JavaPreferencesSettings.getCodeGenerationSettings();
- // ImportsStructure structure= new ImportsStructure(cu, settings.importOrder, settings.importThreshold, true);
- // structure.addImport("java.util.Iterator"); //$NON-NLS-1$
- // structure.create(false, null);
- //
- // document.removePosition(position);
- // document.removePositionUpdater(updater);
- // document.removePositionCategory(category);
- //
- // setCompletionOffset(position.getOffset());
- // setCompletionLength(position.getLength());
- //
- // } catch (CoreException e) {
- // handleException(null, e);
- // } catch (BadLocationException e) {
- // handleException(null, e);
- // } catch (BadPositionCategoryException e) {
- // handleException(null, e);
- // }
- // }
- /**
- * Evaluates a 'java' template in thecontext of a compilation unit
- */
- public static String evaluateTemplate(Template template, ICompilationUnit compilationUnit, int position) throws CoreException,
- BadLocationException, TemplateException {
-
- TemplateContextType contextType = PHPeclipsePlugin.getDefault().getTemplateContextRegistry().getContextType("java"); //$NON-NLS-1$
- if (contextType == null)
- throw new CoreException(new Status(IStatus.ERROR, PHPeclipsePlugin.PLUGIN_ID, IStatus.ERROR, JavaTemplateMessages
- .getString("JavaContext.error.message"), null)); //$NON-NLS-1$
-
- IDocument document = new Document();
- if (compilationUnit != null && compilationUnit.exists())
- document.set(compilationUnit.getSource());
-
- JavaContext context = new JavaContext(contextType, document, position, 0, compilationUnit);
- context.setForceEvaluation(true);
-
- TemplateBuffer buffer = context.evaluate(template);
- if (buffer == null)
- return null;
- return buffer.getString();
- }
-
-}
-
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