package org.eclipse.jdt.internal.corext.template.java;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.Position;
import org.eclipse.jface.text.templates.DocumentTemplateContext;
import org.eclipse.jface.text.templates.GlobalTemplateVariables;
import org.eclipse.jface.text.templates.TemplateContext;
import org.eclipse.jface.text.templates.TemplateContextType;
import org.eclipse.jface.text.templates.TemplateException;
import org.eclipse.jface.text.templates.TemplateVariable;
import org.eclipse.jface.text.templates.TemplateVariableResolver;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.internal.core.manipulation.JavaElementLabelsCore;
public abstract class CompilationUnitContextType extends TemplateContextType {
protected static class ReturnType extends TemplateVariableResolver {
public ReturnType() {
super("return_type", JavaTemplateMessages.CompilationUnitContextType_variable_description_return_type);
}
@Override
protected String resolve(TemplateContext context) {
IJavaElement element= ((ICompilationUnitContext) context).findEnclosingElement(IJavaElement.METHOD);
if (element == null)
return null;
try {
return Signature.toString(((IMethod) element).getReturnType());
} catch (JavaModelException e) {
return null;
}
}
}
protected static class File extends TemplateVariableResolver {
public File() {
super("file", JavaTemplateMessages.CompilationUnitContextType_variable_description_file);
}
@Override
protected String resolve(TemplateContext context) {
ICompilationUnit unit= ((ICompilationUnitContext) context).getCompilationUnit();
return (unit == null) ? null : unit.getElementName();
}
@Override
protected boolean isUnambiguous(TemplateContext context) {
return resolve(context) != null;
}
}
protected static class PrimaryTypeName extends TemplateVariableResolver {
public PrimaryTypeName() {
super("primary_type_name", JavaTemplateMessages.CompilationUnitContextType_variable_description_primary_type_name);
}
@Override
protected String resolve(TemplateContext context) {
ICompilationUnit unit= ((ICompilationUnitContext) context).getCompilationUnit();
if (unit == null)
return null;
return JavaCore.removeJavaLikeExtension(unit.getElementName());
}
@Override
protected boolean isUnambiguous(TemplateContext context) {
return resolve(context) != null;
}
}
protected static class EnclosingJavaElement extends TemplateVariableResolver {
protected final int fElementType;
public EnclosingJavaElement(String name, String description, int elementType) {
super(name, description);
fElementType= elementType;
}
@Override
protected String resolve(TemplateContext context) {
IJavaElement element= ((ICompilationUnitContext) context).findEnclosingElement(fElementType);
if (element instanceof IType)
return JavaElementLabelsCore.getElementLabel(element, JavaElementLabelsCore.T_CONTAINER_QUALIFIED);
return (element == null) ? null : element.getElementName();
}
@Override
protected boolean isUnambiguous(TemplateContext context) {
return resolve(context) != null;
}
}
protected static class Method extends EnclosingJavaElement {
public Method() {
super("enclosing_method", JavaTemplateMessages.CompilationUnitContextType_variable_description_enclosing_method, IJavaElement.METHOD);
}
}
protected static class Type extends EnclosingJavaElement {
public Type() {
super("enclosing_type", JavaTemplateMessages.CompilationUnitContextType_variable_description_enclosing_type, IJavaElement.TYPE);
}
}
protected static class Package extends EnclosingJavaElement {
public Package() {
super("enclosing_package", JavaTemplateMessages.CompilationUnitContextType_variable_description_enclosing_package, IJavaElement.PACKAGE_FRAGMENT);
}
}
protected static class Project extends EnclosingJavaElement {
public Project() {
super("enclosing_project", JavaTemplateMessages.CompilationUnitContextType_variable_description_enclosing_project, IJavaElement.JAVA_PROJECT);
}
}
protected static class Arguments extends TemplateVariableResolver {
public Arguments() {
super("enclosing_method_arguments", JavaTemplateMessages.CompilationUnitContextType_variable_description_enclosing_method_arguments);
}
@Override
protected String resolve(TemplateContext context) {
IJavaElement element= ((ICompilationUnitContext) context).findEnclosingElement(IJavaElement.METHOD);
if (element == null)
return null;
IMethod method= (IMethod) element;
try {
String[] arguments= method.getParameterNames();
StringBuilder buffer= new StringBuilder();
for (int i= 0; i < arguments.length; i++) {
if (i > 0)
buffer.append(", ");
buffer.append(arguments[i]);
}
return buffer.toString();
} catch (JavaModelException e) {
return null;
}
}
}
public CompilationUnitContextType(String id) {
super(id);
}
public CompilationUnitContextType() {
}
public abstract DocumentTemplateContext createContext(IDocument document, int completionPosition, int length, ICompilationUnit compilationUnit);
public abstract DocumentTemplateContext createContext(IDocument document, Position completionPosition, ICompilationUnit compilationUnit);
@Override
protected void validateVariables(TemplateVariable[] variables) throws TemplateException {
for (int i= 0; i < variables.length; i++) {
TemplateVariable var= variables[i];
if (var.getType().equals(GlobalTemplateVariables.Cursor.NAME)) {
if (var.getOffsets().length > 1) {
throw new TemplateException(JavaTemplateMessages.ContextType_error_multiple_cursor_variables);
}
}
}
}
}
CompilationUnitContextType
ReturnType
