core/plugins/org.eclipse.dltk.core/search/org/eclipse/dltk/core/search/indexing/SourceIndexerRequestor.java - dltk/org.eclipse.dltk.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *

  *******************************************************************************/
 package org.eclipse.dltk.core.search.indexing;

 import org.eclipse.dltk.compiler.CharOperation;
 import org.eclipse.dltk.compiler.ISourceElementRequestor;
 import org.eclipse.dltk.core.DLTKCore;

 /**
  * This class is used by the JavaParserIndexer. When parsing thescriptfile, the
  * requestor recognises thescriptelements (methods, fields, ...) and add them to
  * an index.
  */
 public class SourceIndexerRequestor implements ISourceElementRequestor,
 		IIndexConstants {
 	protected SourceIndexer indexer;
 	// char[] packageName = CharOperation.NO_CHAR;
 	protected char[][] enclosingTypeNames = new char[5][];
 	protected int depth = 0;
 	protected int methodDepth = 0;
 	protected char[] pkgName = CharOperation.NO_CHAR;

 	public SourceIndexerRequestor(SourceIndexer indexer) {
 		this.indexer = indexer;
 	}

 	public SourceIndexerRequestor() {
 	}

 	public void setIndexer(SourceIndexer indexer) {
 		this.indexer = indexer;
 	}

 	/**
 	 * @see ISourceElementRequestor#acceptFieldReference(char[], int)
 	 */
 	public void acceptFieldReference(char[] fieldName, int sourcePosition) {
 		this.indexer.addFieldReference(fieldName);
 	}

 	/**
 	 * @see ISourceElementRequestor#acceptImport(int, int, char[][], boolean,
 	 *      int)
 	 */
 	public void acceptImport(int declarationStart, int declarationEnd,
 			char[][] tokens, boolean onDemand, int modifiers) {
 		// imports have already been reported while creating the ImportRef node
 		// (see
 		// SourceElementParser#comsume*ImportDeclarationName() methods)
 	}

 	/**
 	 * @see ISourceElementRequestor#acceptLineSeparatorPositions(int[])
 	 */
 	public void acceptLineSeparatorPositions(int[] positions) {
 		// implements interface method
 	}

 	/**
 	 * @see ISourceElementRequestor#acceptMethodReference(char[], int, int, int)
 	 */
 	public void acceptMethodReference(char[] methodName, int argCount,
 			int sourcePosition, int sourceEndPosition) {
 		this.indexer.addMethodReference(methodName, argCount);
 	}

 	// /**
 	// * @see ISourceElementRequestor#acceptPackage(int, int, char[])
 	// */
 	// public void acceptPackage(int declarationStart, int declarationEnd,
 	// char[] name) {
 	// this.packageName = name;
 	// }

 	/**
 	 * @see ISourceElementRequestor#acceptTypeReference(char[][], int, int)
 	 */
 	public void acceptTypeReference(char[][] typeName, int sourceStart,
 			int sourceEnd) {
 		int length = typeName.length;
 		for (int i = 0; i < length - 1; i++)
 			acceptUnknownReference(typeName[i], 0); // ?
 		acceptTypeReference(typeName[length - 1], 0);
 	}

 	/**
 	 * @see ISourceElementRequestor#acceptTypeReference(char[], int)
 	 */
 	public void acceptTypeReference(char[] simpleTypeName, int sourcePosition) {
 		this.indexer.addTypeReference(simpleTypeName);
 	}

 	/**
 	 * @see ISourceElementRequestor#acceptUnknownReference(char[][], int, int)
 	 */
 	public void acceptUnknownReference(char[][] name, int sourceStart,
 			int sourceEnd) {
 		for (int i = 0; i < name.length; i++) {
 			acceptUnknownReference(name[i], 0);
 		}
 	}

 	/**
 	 * @see ISourceElementRequestor#acceptUnknownReference(char[], int)
 	 */
 	public void acceptUnknownReference(char[] name, int sourcePosition) {
 		this.indexer.addNameReference(name);
 	}

 	/*
 	 * Rebuild the proper qualification for the current source type:
 	 *
 	 * java.lang.Object ---> null java.util.Hashtable$Entry --> [Hashtable]
 	 * x.y.A$B$C --> [A, B]
 	 */
 	public char[][] enclosingTypeNames() {
 		if (depth == 0)
 			return null;
 		char[][] qualification = new char[this.depth][];
 		System.arraycopy(this.enclosingTypeNames, 0, qualification, 0,
 				this.depth);

 		return qualification;
 	}

 	public void enterType(TypeInfo typeInfo) {
 		// eliminate possible qualifications, given they need to be fully
 		// resolved again
 		if (typeInfo.superclasses != null) {
 			// typeInfo.superclasses = typeInfo.superclasses;
 			for (int i = 0, length = typeInfo.superclasses.length; i < length; i++) {
 				typeInfo.superclasses[i] = new String(
 						getSimpleName(typeInfo.superclasses[i].toCharArray()));
 			}
 			// add implicit constructor reference to default constructor
 			if (DLTKCore.DEBUG) {
 				System.err.println("TODO: Add constructore references...");
 			}
 			// this.indexer.addConstructorReference(typeInfo.superclasss, 0);
 		}
 		char[][] typeNames;
 		if (this.methodDepth > 0) {
 			typeNames = ONE_ZERO_CHAR;
 		} else {
 			typeNames = this.enclosingTypeNames();
 		}
 		this.indexer.addTypeDeclaration(typeInfo.modifiers, this.pkgName,
 				typeInfo.name, typeNames, typeInfo.superclasses);
 		this.pushTypeName(typeInfo.name.toCharArray());
 	}

 	public void enterConstructor(MethodInfo methodInfo) {
 		this.indexer.addConstructorDeclaration(methodInfo.name,
 				methodInfo.parameterNames, methodInfo.exceptionTypes);
 		this.methodDepth++;
 	}

 	/**
 	 * @see ISourceElementRequestor#enterField(FieldInfo)
 	 */
 	public void enterField(FieldInfo fieldInfo) {
 		this.indexer.addFieldDeclaration(fieldInfo.name.toCharArray());
 		this.methodDepth++;
 	}

 	/**
 	 * @see ISourceElementRequestor#enterMethod(MethodInfo)
 	 */
 	public void enterMethod(MethodInfo methodInfo) {
 		this.indexer.addMethodDeclaration(methodInfo.name,
 				methodInfo.parameterNames, methodInfo.exceptionTypes);
 		this.methodDepth++;
 	}

 	/**
 	 * @see ISourceElementRequestor#exitType(int)
 	 */
 	public void exitType(int declarationEnd) {
 		popTypeName();
 	}

 	/*
 	 * Returns the unqualified name without parameters from the given type name.
 	 */
 	private char[] getSimpleName(char[] typeName) {
 		int lastDot = -1, lastGenericStart = -1;
 		int depthCount = 0;
 		int length = typeName.length;
 		lastDotLookup: for (int i = length - 1; i >= 0; i--) {
 			switch (typeName[i]) {
 			case '.':
 				if (depthCount == 0) {
 					lastDot = i;
 					break lastDotLookup;
 				}
 				break;
 			case '<':
 				depthCount--;
 				if (depthCount == 0)
 					lastGenericStart = i;
 				break;
 			case '>':
 				depthCount++;
 				break;
 			}
 		}
 		if (lastGenericStart < 0) {
 			if (lastDot < 0) {
 				return typeName;
 			}
 			return CharOperation.subarray(typeName, lastDot + 1, length);
 		}
 		return CharOperation.subarray(typeName, lastDot + 1, lastGenericStart);
 	}

 	public void popTypeName() {
 		if (depth > 0) {
 //			System.out.println("POPNAME:" + new String( enclosingTypeNames[depth-1]));
 			enclosingTypeNames[--depth] = null;
 		}
 //		else if (JobManager.VERBOSE) {
 //			// dump a trace so it can be tracked down
 //			try {
 //				enclosingTypeNames[-1] = null;
 //			} catch (ArrayIndexOutOfBoundsException e) {
 //				e.printStackTrace();
 //			}
 //		}
 	}

 	public void pushTypeName(char[] typeName) {
 		if (depth == enclosingTypeNames.length)
 			System.arraycopy(enclosingTypeNames, 0,
 					enclosingTypeNames = new char[depth * 2][], 0, depth);
 		enclosingTypeNames[depth++] = typeName;
 	}

 	public void enterMethodRemoveSame(MethodInfo info) {
 		if (DLTKCore.DEBUG) {
 			System.out.println("TODO: Add replace method code.");
 		}
 	}

 	public void enterModule() {
 	}

 	public void exitField(int declarationEnd) {
 		this.methodDepth--;
 	}

 	public void exitMethod(int declarationEnd) {
 		this.methodDepth--;
 	}

 	public void exitModule(int declarationEnd) {
 	}

 	public void setPackageName(String pkgName) {
 		this.pkgName = pkgName.toCharArray();
 	}

 	public void acceptPackage(int declarationStart, int declarationEnd,
 			char[] name) {
 	}

 	public boolean enterFieldCheckDuplicates(FieldInfo info) {
 		this.indexer.addFieldDeclaration(info.name.toCharArray());
 		this.methodDepth++;
 		return true;
 	}

 	public boolean enterMethodWithParentType(MethodInfo info,
 			String parentName, String delimiter) {
 		this.enterMethod(info);
 //		this.methodDepth++;
 		return true;
 	}

 	public boolean enterFieldWithParentType(FieldInfo info, String parentName,
 			String delimiter) {
 		this.indexer.addFieldDeclaration(info.name.toCharArray());
 		this.methodDepth++;
 		return true;
 	}

 	public boolean enterTypeAppend(TypeInfo info, String fullName,
 			String delimiter) {
 		enterType(info);
 		return true;
 	}

 	public void enterModuleRoot() {
 		// TODO Auto-generated method stub

 	}

 	public boolean enterTypeAppend(String fullName, String delimiter) {
 		return false;
 	}

 	public void exitModuleRoot() {
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2007 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*

	*******************************************************************************/
	package org.eclipse.dltk.core.search.indexing;

	import org.eclipse.dltk.compiler.CharOperation;
	import org.eclipse.dltk.compiler.ISourceElementRequestor;
	import org.eclipse.dltk.core.DLTKCore;

	/**
	* This class is used by the JavaParserIndexer. When parsing thescriptfile, the
	* requestor recognises thescriptelements (methods, fields, ...) and add them to
	* an index.
	*/
	public class SourceIndexerRequestor implements ISourceElementRequestor,
	IIndexConstants {
	protected SourceIndexer indexer;
	// char[] packageName = CharOperation.NO_CHAR;
	protected char[][] enclosingTypeNames = new char[5][];
	protected int depth = 0;
	protected int methodDepth = 0;
	protected char[] pkgName = CharOperation.NO_CHAR;

	public SourceIndexerRequestor(SourceIndexer indexer) {
	this.indexer = indexer;
	}

	public SourceIndexerRequestor() {
	}

	public void setIndexer(SourceIndexer indexer) {
	this.indexer = indexer;
	}

	/**
	* @see ISourceElementRequestor#acceptFieldReference(char[], int)
	*/
	public void acceptFieldReference(char[] fieldName, int sourcePosition) {
	this.indexer.addFieldReference(fieldName);
	}

	/**
	* @see ISourceElementRequestor#acceptImport(int, int, char[][], boolean,
	* int)
	*/
	public void acceptImport(int declarationStart, int declarationEnd,
	char[][] tokens, boolean onDemand, int modifiers) {
	// imports have already been reported while creating the ImportRef node
	// (see
	// SourceElementParser#comsume*ImportDeclarationName() methods)
	}

	/**
	* @see ISourceElementRequestor#acceptLineSeparatorPositions(int[])
	*/
	public void acceptLineSeparatorPositions(int[] positions) {
	// implements interface method
	}

	/**
	* @see ISourceElementRequestor#acceptMethodReference(char[], int, int, int)
	*/
	public void acceptMethodReference(char[] methodName, int argCount,
	int sourcePosition, int sourceEndPosition) {
	this.indexer.addMethodReference(methodName, argCount);
	}

	// /**
	// * @see ISourceElementRequestor#acceptPackage(int, int, char[])
	// */
	// public void acceptPackage(int declarationStart, int declarationEnd,
	// char[] name) {
	// this.packageName = name;
	// }

	/**
	* @see ISourceElementRequestor#acceptTypeReference(char[][], int, int)
	*/
	public void acceptTypeReference(char[][] typeName, int sourceStart,
	int sourceEnd) {
	int length = typeName.length;
	for (int i = 0; i < length - 1; i++)
	acceptUnknownReference(typeName[i], 0); // ?
	acceptTypeReference(typeName[length - 1], 0);
	}

	/**
	* @see ISourceElementRequestor#acceptTypeReference(char[], int)
	*/
	public void acceptTypeReference(char[] simpleTypeName, int sourcePosition) {
	this.indexer.addTypeReference(simpleTypeName);
	}

	/**
	* @see ISourceElementRequestor#acceptUnknownReference(char[][], int, int)
	*/
	public void acceptUnknownReference(char[][] name, int sourceStart,
	int sourceEnd) {
	for (int i = 0; i < name.length; i++) {
	acceptUnknownReference(name[i], 0);
	}
	}

	/**
	* @see ISourceElementRequestor#acceptUnknownReference(char[], int)
	*/
	public void acceptUnknownReference(char[] name, int sourcePosition) {
	this.indexer.addNameReference(name);
	}

	/*
	* Rebuild the proper qualification for the current source type:
	*
	* java.lang.Object ---> null java.util.Hashtable$Entry --> [Hashtable]
	* x.y.A$B$C --> [A, B]
	*/
	public char[][] enclosingTypeNames() {
	if (depth == 0)
	return null;
	char[][] qualification = new char[this.depth][];
	System.arraycopy(this.enclosingTypeNames, 0, qualification, 0,
	this.depth);

	return qualification;
	}

	public void enterType(TypeInfo typeInfo) {
	// eliminate possible qualifications, given they need to be fully
	// resolved again
	if (typeInfo.superclasses != null) {
	// typeInfo.superclasses = typeInfo.superclasses;
	for (int i = 0, length = typeInfo.superclasses.length; i < length; i++) {
	typeInfo.superclasses[i] = new String(
	getSimpleName(typeInfo.superclasses[i].toCharArray()));
	}
	// add implicit constructor reference to default constructor
	if (DLTKCore.DEBUG) {
	System.err.println("TODO: Add constructore references...");
	}
	// this.indexer.addConstructorReference(typeInfo.superclasss, 0);
	}
	char[][] typeNames;
	if (this.methodDepth > 0) {
	typeNames = ONE_ZERO_CHAR;
	} else {
	typeNames = this.enclosingTypeNames();
	}
	this.indexer.addTypeDeclaration(typeInfo.modifiers, this.pkgName,
	typeInfo.name, typeNames, typeInfo.superclasses);
	this.pushTypeName(typeInfo.name.toCharArray());
	}

	public void enterConstructor(MethodInfo methodInfo) {
	this.indexer.addConstructorDeclaration(methodInfo.name,
	methodInfo.parameterNames, methodInfo.exceptionTypes);
	this.methodDepth++;
	}

	/**
	* @see ISourceElementRequestor#enterField(FieldInfo)
	*/
	public void enterField(FieldInfo fieldInfo) {
	this.indexer.addFieldDeclaration(fieldInfo.name.toCharArray());
	this.methodDepth++;
	}

	/**
	* @see ISourceElementRequestor#enterMethod(MethodInfo)
	*/
	public void enterMethod(MethodInfo methodInfo) {
	this.indexer.addMethodDeclaration(methodInfo.name,
	methodInfo.parameterNames, methodInfo.exceptionTypes);
	this.methodDepth++;
	}

	/**
	* @see ISourceElementRequestor#exitType(int)
	*/
	public void exitType(int declarationEnd) {
	popTypeName();
	}

	/*
	* Returns the unqualified name without parameters from the given type name.
	*/
	private char[] getSimpleName(char[] typeName) {
	int lastDot = -1, lastGenericStart = -1;
	int depthCount = 0;
	int length = typeName.length;
	lastDotLookup: for (int i = length - 1; i >= 0; i--) {
	switch (typeName[i]) {
	case '.':
	if (depthCount == 0) {
	lastDot = i;
	break lastDotLookup;
	}
	break;
	case '<':
	depthCount--;
	if (depthCount == 0)
	lastGenericStart = i;
	break;
	case '>':
	depthCount++;
	break;
	}
	}
	if (lastGenericStart < 0) {
	if (lastDot < 0) {
	return typeName;
	}
	return CharOperation.subarray(typeName, lastDot + 1, length);
	}
	return CharOperation.subarray(typeName, lastDot + 1, lastGenericStart);
	}

	public void popTypeName() {
	if (depth > 0) {
	// System.out.println("POPNAME:" + new String( enclosingTypeNames[depth-1]));
	enclosingTypeNames[--depth] = null;
	}
	// else if (JobManager.VERBOSE) {
	// // dump a trace so it can be tracked down
	// try {
	// enclosingTypeNames[-1] = null;
	// } catch (ArrayIndexOutOfBoundsException e) {
	// e.printStackTrace();
	// }
	// }
	}

	public void pushTypeName(char[] typeName) {
	if (depth == enclosingTypeNames.length)
	System.arraycopy(enclosingTypeNames, 0,
	enclosingTypeNames = new char[depth * 2][], 0, depth);
	enclosingTypeNames[depth++] = typeName;
	}

	public void enterMethodRemoveSame(MethodInfo info) {
	if (DLTKCore.DEBUG) {
	System.out.println("TODO: Add replace method code.");
	}
	}

	public void enterModule() {
	}

	public void exitField(int declarationEnd) {
	this.methodDepth--;
	}

	public void exitMethod(int declarationEnd) {
	this.methodDepth--;
	}

	public void exitModule(int declarationEnd) {
	}

	public void setPackageName(String pkgName) {
	this.pkgName = pkgName.toCharArray();
	}

	public void acceptPackage(int declarationStart, int declarationEnd,
	char[] name) {
	}

	public boolean enterFieldCheckDuplicates(FieldInfo info) {
	this.indexer.addFieldDeclaration(info.name.toCharArray());
	this.methodDepth++;
	return true;
	}

	public boolean enterMethodWithParentType(MethodInfo info,
	String parentName, String delimiter) {
	this.enterMethod(info);
	// this.methodDepth++;
	return true;
	}

	public boolean enterFieldWithParentType(FieldInfo info, String parentName,
	String delimiter) {
	this.indexer.addFieldDeclaration(info.name.toCharArray());
	this.methodDepth++;
	return true;
	}

	public boolean enterTypeAppend(TypeInfo info, String fullName,
	String delimiter) {
	enterType(info);
	return true;
	}

	public void enterModuleRoot() {
	// TODO Auto-generated method stub

	}

	public boolean enterTypeAppend(String fullName, String delimiter) {
	return false;
	}

	public void exitModuleRoot() {
	}

	}