model/org/eclipse/jdt/internal/core/SelectionRequestor.java - gerrit/e4/org.eclipse.jdt.core - Git at Google

 package org.eclipse.jdt.internal.core;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */

 import java.util.ArrayList;
 import org.eclipse.core.resources.*;
 import org.eclipse.jdt.internal.compiler.*;
 import org.eclipse.jdt.internal.compiler.util.CharOperation;
 import org.eclipse.jdt.internal.codeassist.ISelectionRequestor;
 import org.eclipse.jdt.internal.codeassist.SelectionEngine;
 import org.eclipse.jdt.core.*;
 import org.eclipse.jdt.core.compiler.IProblem;

 /**
  * Implementation of <code>ISelectionRequestor</code> to assist with
  * code resolve in a compilation unit. Translates names to elements.
  */
 public class SelectionRequestor implements ISelectionRequestor {
 	/**
 	 * The name lookup facility used to resolve packages
 	 */
 	protected NameLookup fNameLookup= null;

 	/**
 	 * Fix for 1FVXGDK
 	 *
 	 * The compilation unit we are resolving in
 	 */
 	protected IJavaElement fCodeResolve;

 	/**
 	 * The collection of resolved elements.
 	 */
 	protected IJavaElement[] fElements= fgEmptyElements;

 	/**
 	 * Empty collection used for efficiency.
 	 */
 	protected static IJavaElement[] fgEmptyElements = new IJavaElement[]{};
 /**
  * Creates a selection requestor that uses that given
  * name lookup facility to resolve names.
  *
  * Fix for 1FVXGDK
  */
 public SelectionRequestor(NameLookup nameLookup, IJavaElement codeResolve) {
 	super();
 	fNameLookup = nameLookup;
 	fCodeResolve = codeResolve;
 }
 /**
  * Resolve the binary method
  *
  * fix for 1FWFT6Q
  */
 protected void acceptBinaryMethod(IType type, char[] selector, char[][] parameterPackageNames, char[][] parameterTypeNames) {
 	String[] parameterTypes= null;
 	if (parameterTypeNames != null) {
 		parameterTypes= new String[parameterTypeNames.length];
 		for (int i= 0, max = parameterTypeNames.length; i < max; i++) {
 			String pkg = IPackageFragment.DEFAULT_PACKAGE_NAME;
 			if (parameterPackageNames[i] != null && parameterPackageNames[i].length > 0) {
 				pkg = new String(parameterPackageNames[i]) + "."; //$NON-NLS-1$
 			}
 			parameterTypes[i]= Signature.createTypeSignature(
 				pkg + new String(parameterTypeNames[i]), true);
 		}
 	}
 	IMethod method= type.getMethod(new String(selector), parameterTypes);
 	if (method.exists()) {
 		fElements = growAndAddToArray(fElements, method);
 		if(SelectionEngine.DEBUG){
 			System.out.print("SELECTION - accept method("); //$NON-NLS-1$
 			System.out.print(method.toString());
 			System.out.println(")"); //$NON-NLS-1$
 		}
 	}
 }
 /**
  * Resolve the class.
  */
 public void acceptClass(char[] packageName, char[] className, boolean needQualification) {
 	acceptType(packageName, className, NameLookup.ACCEPT_CLASSES, needQualification);
 }
 /**
  * Do nothing.
  */
 public void acceptError(IProblem error) {}
 /**
  * Resolve the field.
  */
 public void acceptField(char[] declaringTypePackageName, char[] declaringTypeName, char[] name) {
 	IType type= resolveType(declaringTypePackageName, declaringTypeName,
 		NameLookup.ACCEPT_CLASSES | NameLookup.ACCEPT_INTERFACES);
 	if (type != null) {
 		IField field= type.getField(new String(name));
 		if (field.exists()) {
 			fElements= growAndAddToArray(fElements, field);
 			if(SelectionEngine.DEBUG){
 				System.out.print("SELECTION - accept field("); //$NON-NLS-1$
 				System.out.print(field.toString());
 				System.out.println(")"); //$NON-NLS-1$
 			}
 		}
 	}
 }
 /**
  * Resolve the interface
  */
 public void acceptInterface(char[] packageName, char[] interfaceName, boolean needQualification) {
 	acceptType(packageName, interfaceName, NameLookup.ACCEPT_INTERFACES, needQualification);
 }
 /**
  * Resolve the method
  */
 public void acceptMethod(char[] declaringTypePackageName, char[] declaringTypeName, char[] selector, char[][] parameterPackageNames, char[][] parameterTypeNames, boolean isConstructor) {
 	IType type= resolveType(declaringTypePackageName, declaringTypeName,
 		NameLookup.ACCEPT_CLASSES | NameLookup.ACCEPT_INTERFACES);
 	// fix for 1FWFT6Q
 	if (type != null) {
 		if (type.isBinary()) {

 			// need to add a paramater for constructor in binary type
 			IType declaringDeclaringType = type.getDeclaringType();
 			if(declaringDeclaringType != null && isConstructor) {
 				int length = parameterPackageNames.length;
 				System.arraycopy(parameterPackageNames, 0, parameterPackageNames = new char[length+1][], 1, length);
 				System.arraycopy(parameterTypeNames, 0, parameterTypeNames = new char[length+1][], 1, length);

 				parameterPackageNames[0] = declaringDeclaringType.getPackageFragment().getElementName().toCharArray();
 				parameterTypeNames[0] = declaringDeclaringType.getTypeQualifiedName().toCharArray();
 			}

 			acceptBinaryMethod(type, selector, parameterPackageNames, parameterTypeNames);
 		} else {
 			acceptSourceMethod(type, selector, parameterPackageNames, parameterTypeNames);
 		}
 	}
 }
 /**
  * Resolve the package
  */
 public void acceptPackage(char[] packageName) {
 	IPackageFragment[] pkgs = fNameLookup.findPackageFragments(new String(packageName), false);
 	if (pkgs != null) {
 		for (int i = 0, length = pkgs.length; i < length; i++) {
 			fElements = growAndAddToArray(fElements, pkgs[i]);
 			if(SelectionEngine.DEBUG){
 				System.out.print("SELECTION - accept package("); //$NON-NLS-1$
 				System.out.print(pkgs[i].toString());
 				System.out.println(")"); //$NON-NLS-1$
 			}
 		}
 	}
 }
 /**
  * Resolve the source method
  *
  * fix for 1FWFT6Q
  */
 protected void acceptSourceMethod(IType type, char[] selector, char[][] parameterPackageNames, char[][] parameterTypeNames) {
 	String name = new String(selector);
 	IMethod[] methods = null;
 	IJavaElement[] matches = new IJavaElement[] {};
 	try {
 		methods = type.getMethods();
 		for (int i = 0; i < methods.length; i++) {
 			if (methods[i].getElementName().equals(name) && methods[i].getParameterTypes().length == parameterTypeNames.length) {
 				matches = growAndAddToArray(matches, methods[i]);
 			}
 		}
 	} catch (JavaModelException e) {
 		return;
 	}

 	// if no matches, nothing to report
 	if (matches.length == 0) {
 		// no match was actually found, but a method was originally given -> default constructor
 		fElements = growAndAddToArray(fElements, type);
 		if(SelectionEngine.DEBUG){
 			System.out.print("SELECTION - accept type("); //$NON-NLS-1$
 			System.out.print(type.toString());
 			System.out.println(")"); //$NON-NLS-1$
 		}
 		return;
 	}

 	// if there is only one match, we've got it
 	if (matches.length == 1) {
 		fElements = growAndAddToArray(fElements, matches[0]);
 		if(SelectionEngine.DEBUG){
 			System.out.print("SELECTION - accept method("); //$NON-NLS-1$
 			System.out.print(matches[0].toString());
 			System.out.println(")"); //$NON-NLS-1$
 		}
 		return;
 	}

 	// more than one match - must match simple parameter types
 	for (int i = 0; i < matches.length; i++) {
 		IMethod method= (IMethod)matches[i];
 		String[] signatures = method.getParameterTypes();
 		boolean match= true;
 		for (int p = 0; p < signatures.length; p++) {
 			String simpleName= Signature.getSimpleName(Signature.toString(signatures[p]));
 			if (!simpleName.equals(new String(parameterTypeNames[p]))) {
 				match = false;
 				break;
 			}
 		}
 		if (match) {
 			fElements = growAndAddToArray(fElements, method);
 			if(SelectionEngine.DEBUG){
 				System.out.print("SELECTION - accept method("); //$NON-NLS-1$
 				System.out.print(method.toString());
 				System.out.println(")"); //$NON-NLS-1$
 			}
 		}
 	}

 }
 /**
  * Resolve the type, adding to the resolved elements.
  */
 protected void acceptType(char[] packageName, char[] typeName, int acceptFlags, boolean needQualification) {
 	IType type= resolveType(packageName, typeName, acceptFlags);
 	if (type != null) {
 		fElements= growAndAddToArray(fElements, type);
 		if(SelectionEngine.DEBUG){
 			System.out.print("SELECTION - accept type("); //$NON-NLS-1$
 			System.out.print(type.toString());
 			System.out.println(")"); //$NON-NLS-1$
 		}
 	}

 }
 /**
  * Returns the resolved elements.
  */
 public IJavaElement[] getElements() {
 	return fElements;
 }
 /**
  * Adds the new element to a new array that contains all of the elements of the old array.
  * Returns the new array.
  */
 protected IJavaElement[] growAndAddToArray(IJavaElement[] array, IJavaElement addition) {
 	IJavaElement[] old = array;
 	array = new IJavaElement[old.length + 1];
 	System.arraycopy(old, 0, array, 0, old.length);
 	array[old.length] = addition;
 	return array;
 }
 /**
  * Resolve the type
  */
 protected IType resolveType(char[] packageName, char[] typeName, int acceptFlags) {

 	IType type= null;

 	if (fCodeResolve instanceof WorkingCopy) {
 		WorkingCopy wc = (WorkingCopy) fCodeResolve;
 		try {
 			if(((packageName == null || packageName.length == 0) && wc.getPackageDeclarations().length == 0) ||
 				(!(packageName == null || packageName.length == 0) && wc.getPackageDeclaration(new String(packageName)).exists())) {

 				char[][] compoundName = CharOperation.splitOn('.', typeName);
 				if(compoundName.length > 0) {
 					type = wc.getType(new String(compoundName[0]));
 					for (int i = 1, length = compoundName.length; i < length; i++) {
 						type = type.getType(new String(compoundName[i]));
 					}
 				}

 				if(!type.exists()) {
 					type = null;
 				}
 			}
 		}catch (JavaModelException e) {
 			type = null;
 		}
 	}

 	if(type == null) {
 		IPackageFragment[] pkgs = fNameLookup.findPackageFragments(
 			(packageName == null || packageName.length == 0) ? IPackageFragment.DEFAULT_PACKAGE_NAME : new String(packageName),
 			false);
 		// iterate type lookup in each package fragment
 		for (int i = 0, length = pkgs == null ? 0 : pkgs.length; i < length; i++) {
 			type= fNameLookup.findType(new String(typeName), pkgs[i], false, acceptFlags);
 			if (type != null) break;
 		}
 		if (type == null) {
 			String pName= IPackageFragment.DEFAULT_PACKAGE_NAME;
 			if (packageName != null) {
 				pName = new String(packageName);
 			}
 			if (fCodeResolve != null && fCodeResolve.getParent().getElementName().equals(pName)) {
 				// look inside the type in which we are resolving in
 				String tName= new String(typeName);
 				tName = tName.replace('.','$');
 				IType[] allTypes= null;
 				try {
 					ArrayList list = ((JavaElement)fCodeResolve).getChildrenOfType(IJavaElement.TYPE);
 					allTypes = new IType[list.size()];
 					list.toArray(allTypes);
 				} catch (JavaModelException e) {
 					return null;
 				}
 				for (int i= 0; i < allTypes.length; i++) {
 					if (allTypes[i].getTypeQualifiedName().equals(tName)) {
 						return allTypes[i];
 					}
 				}
 			}
 		}
 	}
 	return type;
 }
 }
	package org.eclipse.jdt.internal.core;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/

	import java.util.ArrayList;
	import org.eclipse.core.resources.*;
	import org.eclipse.jdt.internal.compiler.*;
	import org.eclipse.jdt.internal.compiler.util.CharOperation;
	import org.eclipse.jdt.internal.codeassist.ISelectionRequestor;
	import org.eclipse.jdt.internal.codeassist.SelectionEngine;
	import org.eclipse.jdt.core.*;
	import org.eclipse.jdt.core.compiler.IProblem;

	/**
	* Implementation of <code>ISelectionRequestor</code> to assist with
	* code resolve in a compilation unit. Translates names to elements.
	*/
	public class SelectionRequestor implements ISelectionRequestor {
	/**
	* The name lookup facility used to resolve packages
	*/
	protected NameLookup fNameLookup= null;

	/**
	* Fix for 1FVXGDK
	*
	* The compilation unit we are resolving in
	*/
	protected IJavaElement fCodeResolve;

	/**
	* The collection of resolved elements.
	*/
	protected IJavaElement[] fElements= fgEmptyElements;

	/**
	* Empty collection used for efficiency.
	*/
	protected static IJavaElement[] fgEmptyElements = new IJavaElement[]{};
	/**
	* Creates a selection requestor that uses that given
	* name lookup facility to resolve names.
	*
	* Fix for 1FVXGDK
	*/
	public SelectionRequestor(NameLookup nameLookup, IJavaElement codeResolve) {
	super();
	fNameLookup = nameLookup;
	fCodeResolve = codeResolve;
	}
	/**
	* Resolve the binary method
	*
	* fix for 1FWFT6Q
	*/
	protected void acceptBinaryMethod(IType type, char[] selector, char[][] parameterPackageNames, char[][] parameterTypeNames) {
	String[] parameterTypes= null;
	if (parameterTypeNames != null) {
	parameterTypes= new String[parameterTypeNames.length];
	for (int i= 0, max = parameterTypeNames.length; i < max; i++) {
	String pkg = IPackageFragment.DEFAULT_PACKAGE_NAME;
	if (parameterPackageNames[i] != null && parameterPackageNames[i].length > 0) {
	pkg = new String(parameterPackageNames[i]) + "."; //$NON-NLS-1$
	}
	parameterTypes[i]= Signature.createTypeSignature(
	pkg + new String(parameterTypeNames[i]), true);
	}
	}
	IMethod method= type.getMethod(new String(selector), parameterTypes);
	if (method.exists()) {
	fElements = growAndAddToArray(fElements, method);
	if(SelectionEngine.DEBUG){
	System.out.print("SELECTION - accept method("); //$NON-NLS-1$
	System.out.print(method.toString());
	System.out.println(")"); //$NON-NLS-1$
	}
	}
	}
	/**
	* Resolve the class.
	*/
	public void acceptClass(char[] packageName, char[] className, boolean needQualification) {
	acceptType(packageName, className, NameLookup.ACCEPT_CLASSES, needQualification);
	}
	/**
	* Do nothing.
	*/
	public void acceptError(IProblem error) {}
	/**
	* Resolve the field.
	*/
	public void acceptField(char[] declaringTypePackageName, char[] declaringTypeName, char[] name) {
	IType type= resolveType(declaringTypePackageName, declaringTypeName,
	NameLookup.ACCEPT_CLASSES \| NameLookup.ACCEPT_INTERFACES);
	if (type != null) {
	IField field= type.getField(new String(name));
	if (field.exists()) {
	fElements= growAndAddToArray(fElements, field);
	if(SelectionEngine.DEBUG){
	System.out.print("SELECTION - accept field("); //$NON-NLS-1$
	System.out.print(field.toString());
	System.out.println(")"); //$NON-NLS-1$
	}
	}
	}
	}
	/**
	* Resolve the interface
	*/
	public void acceptInterface(char[] packageName, char[] interfaceName, boolean needQualification) {
	acceptType(packageName, interfaceName, NameLookup.ACCEPT_INTERFACES, needQualification);
	}
	/**
	* Resolve the method
	*/
	public void acceptMethod(char[] declaringTypePackageName, char[] declaringTypeName, char[] selector, char[][] parameterPackageNames, char[][] parameterTypeNames, boolean isConstructor) {
	IType type= resolveType(declaringTypePackageName, declaringTypeName,
	NameLookup.ACCEPT_CLASSES \| NameLookup.ACCEPT_INTERFACES);
	// fix for 1FWFT6Q
	if (type != null) {
	if (type.isBinary()) {

	// need to add a paramater for constructor in binary type
	IType declaringDeclaringType = type.getDeclaringType();
	if(declaringDeclaringType != null && isConstructor) {
	int length = parameterPackageNames.length;
	System.arraycopy(parameterPackageNames, 0, parameterPackageNames = new char[length+1][], 1, length);
	System.arraycopy(parameterTypeNames, 0, parameterTypeNames = new char[length+1][], 1, length);

	parameterPackageNames[0] = declaringDeclaringType.getPackageFragment().getElementName().toCharArray();
	parameterTypeNames[0] = declaringDeclaringType.getTypeQualifiedName().toCharArray();
	}

	acceptBinaryMethod(type, selector, parameterPackageNames, parameterTypeNames);
	} else {
	acceptSourceMethod(type, selector, parameterPackageNames, parameterTypeNames);
	}
	}
	}
	/**
	* Resolve the package
	*/
	public void acceptPackage(char[] packageName) {
	IPackageFragment[] pkgs = fNameLookup.findPackageFragments(new String(packageName), false);
	if (pkgs != null) {
	for (int i = 0, length = pkgs.length; i < length; i++) {
	fElements = growAndAddToArray(fElements, pkgs[i]);
	if(SelectionEngine.DEBUG){
	System.out.print("SELECTION - accept package("); //$NON-NLS-1$
	System.out.print(pkgs[i].toString());
	System.out.println(")"); //$NON-NLS-1$
	}
	}
	}
	}
	/**
	* Resolve the source method
	*
	* fix for 1FWFT6Q
	*/
	protected void acceptSourceMethod(IType type, char[] selector, char[][] parameterPackageNames, char[][] parameterTypeNames) {
	String name = new String(selector);
	IMethod[] methods = null;
	IJavaElement[] matches = new IJavaElement[] {};
	try {
	methods = type.getMethods();
	for (int i = 0; i < methods.length; i++) {
	if (methods[i].getElementName().equals(name) && methods[i].getParameterTypes().length == parameterTypeNames.length) {
	matches = growAndAddToArray(matches, methods[i]);
	}
	}
	} catch (JavaModelException e) {
	return;
	}

	// if no matches, nothing to report
	if (matches.length == 0) {
	// no match was actually found, but a method was originally given -> default constructor
	fElements = growAndAddToArray(fElements, type);
	if(SelectionEngine.DEBUG){
	System.out.print("SELECTION - accept type("); //$NON-NLS-1$
	System.out.print(type.toString());
	System.out.println(")"); //$NON-NLS-1$
	}
	return;
	}

	// if there is only one match, we've got it
	if (matches.length == 1) {
	fElements = growAndAddToArray(fElements, matches[0]);
	if(SelectionEngine.DEBUG){
	System.out.print("SELECTION - accept method("); //$NON-NLS-1$
	System.out.print(matches[0].toString());
	System.out.println(")"); //$NON-NLS-1$
	}
	return;
	}

	// more than one match - must match simple parameter types
	for (int i = 0; i < matches.length; i++) {
	IMethod method= (IMethod)matches[i];
	String[] signatures = method.getParameterTypes();
	boolean match= true;
	for (int p = 0; p < signatures.length; p++) {
	String simpleName= Signature.getSimpleName(Signature.toString(signatures[p]));
	if (!simpleName.equals(new String(parameterTypeNames[p]))) {
	match = false;
	break;
	}
	}
	if (match) {
	fElements = growAndAddToArray(fElements, method);
	if(SelectionEngine.DEBUG){
	System.out.print("SELECTION - accept method("); //$NON-NLS-1$
	System.out.print(method.toString());
	System.out.println(")"); //$NON-NLS-1$
	}
	}
	}

	}
	/**
	* Resolve the type, adding to the resolved elements.
	*/
	protected void acceptType(char[] packageName, char[] typeName, int acceptFlags, boolean needQualification) {
	IType type= resolveType(packageName, typeName, acceptFlags);
	if (type != null) {
	fElements= growAndAddToArray(fElements, type);
	if(SelectionEngine.DEBUG){
	System.out.print("SELECTION - accept type("); //$NON-NLS-1$
	System.out.print(type.toString());
	System.out.println(")"); //$NON-NLS-1$
	}
	}

	}
	/**
	* Returns the resolved elements.
	*/
	public IJavaElement[] getElements() {
	return fElements;
	}
	/**
	* Adds the new element to a new array that contains all of the elements of the old array.
	* Returns the new array.
	*/
	protected IJavaElement[] growAndAddToArray(IJavaElement[] array, IJavaElement addition) {
	IJavaElement[] old = array;
	array = new IJavaElement[old.length + 1];
	System.arraycopy(old, 0, array, 0, old.length);
	array[old.length] = addition;
	return array;
	}
	/**
	* Resolve the type
	*/
	protected IType resolveType(char[] packageName, char[] typeName, int acceptFlags) {

	IType type= null;

	if (fCodeResolve instanceof WorkingCopy) {
	WorkingCopy wc = (WorkingCopy) fCodeResolve;
	try {
	if(((packageName == null \|\| packageName.length == 0) && wc.getPackageDeclarations().length == 0) \|\|
	(!(packageName == null \|\| packageName.length == 0) && wc.getPackageDeclaration(new String(packageName)).exists())) {

	char[][] compoundName = CharOperation.splitOn('.', typeName);
	if(compoundName.length > 0) {
	type = wc.getType(new String(compoundName[0]));
	for (int i = 1, length = compoundName.length; i < length; i++) {
	type = type.getType(new String(compoundName[i]));
	}
	}

	if(!type.exists()) {
	type = null;
	}
	}
	}catch (JavaModelException e) {
	type = null;
	}
	}

	if(type == null) {
	IPackageFragment[] pkgs = fNameLookup.findPackageFragments(
	(packageName == null \|\| packageName.length == 0) ? IPackageFragment.DEFAULT_PACKAGE_NAME : new String(packageName),
	false);
	// iterate type lookup in each package fragment
	for (int i = 0, length = pkgs == null ? 0 : pkgs.length; i < length; i++) {
	type= fNameLookup.findType(new String(typeName), pkgs[i], false, acceptFlags);
	if (type != null) break;
	}
	if (type == null) {
	String pName= IPackageFragment.DEFAULT_PACKAGE_NAME;
	if (packageName != null) {
	pName = new String(packageName);
	}
	if (fCodeResolve != null && fCodeResolve.getParent().getElementName().equals(pName)) {
	// look inside the type in which we are resolving in
	String tName= new String(typeName);
	tName = tName.replace('.','$');
	IType[] allTypes= null;
	try {
	ArrayList list = ((JavaElement)fCodeResolve).getChildrenOfType(IJavaElement.TYPE);
	allTypes = new IType[list.size()];
	list.toArray(allTypes);
	} catch (JavaModelException e) {
	return null;
	}
	for (int i= 0; i < allTypes.length; i++) {
	if (allTypes[i].getTypeQualifiedName().equals(tName)) {
	return allTypes[i];
	}
	}
	}
	}
	}
	return type;
	}
	}