diff options
Diffstat (limited to 'plugins/org.eclipse.gmt.tcs.injector/src/org/eclipse/gmt/tcs/injector/wrappers/antlr3/ParserWrapper.java')
| -rw-r--r-- | plugins/org.eclipse.gmt.tcs.injector/src/org/eclipse/gmt/tcs/injector/wrappers/antlr3/ParserWrapper.java | 500 |
1 files changed, 248 insertions, 252 deletions
diff --git a/plugins/org.eclipse.gmt.tcs.injector/src/org/eclipse/gmt/tcs/injector/wrappers/antlr3/ParserWrapper.java b/plugins/org.eclipse.gmt.tcs.injector/src/org/eclipse/gmt/tcs/injector/wrappers/antlr3/ParserWrapper.java index e2a0246..a5b9761 100644 --- a/plugins/org.eclipse.gmt.tcs.injector/src/org/eclipse/gmt/tcs/injector/wrappers/antlr3/ParserWrapper.java +++ b/plugins/org.eclipse.gmt.tcs.injector/src/org/eclipse/gmt/tcs/injector/wrappers/antlr3/ParserWrapper.java @@ -1,252 +1,248 @@ -/**
- * Copyright (c) 2004, 2008 INRIA.
- * 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
- *
- * Contributors:
- * INRIA - initial API and implementation
- *
- * $Id: ParserWrapper.java,v 1.14 2008/07/04 13:03:24 fjouault Exp $
- */
-package org.eclipse.gmt.tcs.injector.wrappers.antlr3;
-
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-import org.antlr.runtime.ANTLRStringStream;
-import org.antlr.runtime.CharStream;
-import org.antlr.runtime.CommonToken;
-import org.antlr.runtime.CommonTokenStream;
-import org.antlr.runtime.Lexer;
-import org.antlr.runtime.Parser;
-import org.antlr.runtime.RecognitionException;
-import org.antlr.runtime.Token;
-import org.antlr.runtime.TokenStream;
-import org.eclipse.gmt.tcs.injector.TCSClassLoader;
-
-/**
- * @author Frédéric Jouault
- * @author Mikaël Barbero
- */
-public class ParserWrapper extends org.eclipse.gmt.tcs.injector.wrappers.ParserWrapper {
-
- private Parser parser;
- private Lexer lexer;
-
- public ParserWrapper() {
- }
-
- public Object parse(int tabSize, String name, String productionRule, InputStream in, Map params) throws Exception {
- Class lexerClass = (Class)params.get("lexerClass");
- Class parserClass = (Class)params.get("parserClass");
- if((lexerClass == null) || (parserClass == null)) {
- URL extraClasspath[] = (URL[])params.get("extraClasspath");
- ClassLoader cl = ParserWrapper.class.getClassLoader();
- if(extraClasspath != null) {
- cl = new TCSClassLoader(extraClasspath, cl);
- }
- if(lexerClass == null) {
- try {
- lexerClass = cl.loadClass(pack + name + "_ANTLR3Lexer");
- } catch (ClassNotFoundException e) {
- throw new IllegalArgumentException("Unable to locate lexer class with name " + name, e);
- }
- }
- if(parserClass == null) {
- try {
- parserClass = cl.loadClass(pack + name + "_ANTLR3Parser");
- } catch (ClassNotFoundException e) {
- throw new IllegalArgumentException("Unable to locate parser class with name " + name, e);
- }
- }
- }
-
-
- Object ret = null;
- InputStreamReader isr = new InputStreamReader(in);
- StringBuffer s = new StringBuffer();
- char buffer[] = new char[10000];
- int size;
- while((size = isr.read(buffer)) > 0) {
- s.append(buffer, 0, size);
- }
- ANTLRStringStream stream = new ANTLRStringStream(s.toString());
-
- lexer = (Lexer)lexerClass.getDeclaredConstructor(new Class[] {CharStream.class}).newInstance(new Object[] {stream});
-
- CommonTokenStream tokens = new CommonTokenStream(lexer);
- try {
- TT_NL = ((Integer)parserClass.getField("NL").get(null)).intValue();
- tokens.setTokenTypeChannel(TT_NL, 99);
- //tokens.discardTokenType(TT_NL);
- } catch(Exception e) {
- }
- try {
- TT_WS = ((Integer)parserClass.getField("WS").get(null)).intValue();
- tokens.discardTokenType(TT_WS);
- } catch(Exception e) {
- }
- try {
- TT_COMMENT = ((Integer)parserClass.getField("COMMENT").get(null)).intValue();
- tokens.setTokenTypeChannel(TT_COMMENT, 99);
- //tokens.discardTokenType(TT_COMMENT);
- } catch(Exception e) {
- }
-
- parser = (Parser)parserClass.getDeclaredConstructor(new Class[] {TokenStream.class}).newInstance(new Object[] {tokens});
-
- Field f = parserClass.getField("ei");
- f.set(parser, runtime);
-
- f = lexerClass.getField("ei");
- f.set(lexer, runtime);
-
- Method m = parserClass.getMethod(productionRule, new Class[] {});
- try {
- ret = m.invoke(parser, new Object[] {});
- } catch(java.lang.reflect.InvocationTargetException ite) {
- ite.getCause().printStackTrace(System.out);
- }
-
- return ret;
- }
-
- public void reportError(Exception e) {
- RecognitionException re = (RecognitionException)e;
- String msg = null;
- if(re.input instanceof ANTLRStringStream) {
- msg = lexer.getErrorMessage(re, lexer.getTokenNames());
- } else {
- msg = parser.getErrorMessage(re, parser.getTokenNames());
- }
- // TODO: try to use re.token to get a complete location (may not always be possible, like for lexer errors)
- runtime.reportProblem("Error", msg, re.line + ":" + (re.charPositionInLine + 1));
- }
-
- /**
- * set up a list with the comments before a model element. The list contains a set of tokens
- * @param input
- * @param index
- * @return
- */
- private List setTokenListBefore (TokenStream input, int index ){
- List cb = new ArrayList();
- if (index - 1 > 0 ) {
- for (int i = index - 1 ; i >= 0 && (
- input.get(i).getType() == TT_COMMENT || input.get(i).getType() == TT_NL) ; i--) {
- cb.add(input.get(i));
- }
- }
- return cb;
- }
-
- /**
- * sets the comments before a model element.
- * the input is the current stream. the index is the index of the current token
- */
- public void setCommentsBefore(Object ame, Object params_) {
- if(params_ instanceof Object[]) {
- Object params[] = (Object[])params_;
- if((params[0] == null) || (params[1] == null)) return;
- TokenStream input = (TokenStream)params[0];
- int index = ((Token)params[1]).getTokenIndex();
-
- setComments(setTokenListBefore(input, index), ame, true, "commentsBefore");
- }
- }
- /**
- * set us a list with the comments after a model element.
- * @param input
- * @param index
- * @return set of tokens
- */
- private List setTokenListAfter (TokenStream input, int index){
- List ca = new ArrayList();
- if (index + 1 > 0 ) {
- for (int i = index + 1;
- i < input.size() && (
- input.get(i).getType() == TT_COMMENT || input.get(i).getType() == TT_NL)
- ; i++) {
- ca.add(input.get(i));
- }
- }
- return ca;
- }
- /**
- *
- * @param commentList a list with a set of tokens
- * @param ame an ASM model element
- * @param inverseOrder indicates if the elements of the list should be created in a normal order or on the inverse order
- * @param elementName the name of the element that stores the comments
- */
- private void setComments (List commentList, Object ame, boolean inverseOrder, String elementName){
- if(runtime.isKeepComments()) {
- if(commentList.size() > 0) {
- List aList = new ArrayList();
- for (Iterator tokens = commentList.iterator(); tokens.hasNext();) {
- Token token = (Token) tokens.next();
- if(token.getType() == TT_COMMENT) {
- if (inverseOrder)
- aList.add(0, token.getText());
- else
- aList.add(token.getText());
- } else if(token.getType() == TT_NL) {
- if(runtime.isKeepNL())
- if (inverseOrder)
- aList.add(0, "\n");
- else
- aList.add("\n");
- }
- }
- try {
- runtime.getTargetModelAdapter().set(ame, elementName, aList);
- } catch(Exception e) {
- runtime.reportProblem("Warning", "could not set comments of " + ame + ", disabling further comments setting", ame);
- runtime.setKeepComments(false);
- }
- }
- }
-
- }
- public void setCommentsAfter(Object ame, Object params_) {
- if(params_ instanceof Object[]) {
- Object params[] = (Object[])params_;
- if((params[0] == null) || (params[1] == null)) return;
-
- TokenStream input = (TokenStream)params[0];
- int index = ((Token)params[1]).getTokenIndex();
-
- setComments(setTokenListAfter(input, index), ame, false,"commentsAfter");
-
- runtime.setLastWasCreation(false);
- }
- }
-
- public String getLocation(Object token) {
- ANTLR3LocationToken lt = ((ANTLR3LocationToken)token);
- return lt.getLine() + ":" + (lt.getCharPositionInLine() + 1) + "-" + lt.getEndLine() + ":" + (lt.getEndColumn() + 1);
- }
-
- public int getStartOffset(Object token) {
- CommonToken t = ((CommonToken)token);
- return t.getStartIndex();
- }
-
- public int getEndOffset(Object token) {
- CommonToken t = ((CommonToken)token);
- return t.getStopIndex();
- }
-
- public Object getLastToken() {
- return parser.getTokenStream().LT(-1);
- }
-}
+/** + * Copyright (c) 2004, 2008, 2014 INRIA. + * 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 + * + * Contributors: + * INRIA - initial API and implementation + * Dennis Wagelaar + * + * $Id: ParserWrapper.java,v 1.1 2009/04/21 14:12:27 wpiers Exp $ + */ +package org.eclipse.gmt.tcs.injector.wrappers.antlr3; + +import java.io.Reader; +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.net.URL; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; +import java.util.Map; + +import org.antlr.runtime.ANTLRReaderStream; +import org.antlr.runtime.ANTLRStringStream; +import org.antlr.runtime.CharStream; +import org.antlr.runtime.CommonToken; +import org.antlr.runtime.CommonTokenStream; +import org.antlr.runtime.Lexer; +import org.antlr.runtime.Parser; +import org.antlr.runtime.RecognitionException; +import org.antlr.runtime.Token; +import org.antlr.runtime.TokenStream; +import org.eclipse.gmt.tcs.injector.TCSClassLoader; + +/** + * @author <a href="mailto:frederic.jouault@univ-nantes.fr">Frederic Jouault</a> + * @author <a href="mailto:mikael.barbero@obeo.fr">Mikael Barbero</a> + * @author <a href="mailto:dwagelaar@gmail.com">Dennis Wagelaar</a> + */ +public class ParserWrapper extends org.eclipse.gmt.tcs.injector.wrappers.ParserWrapper { + + private Parser parser; + private Lexer lexer; + + public ParserWrapper() { + } + + public Object parse(int tabSize, String name, String productionRule, Reader isr, Map params) throws Exception { + Class lexerClass = (Class)params.get("lexerClass"); + Class parserClass = (Class)params.get("parserClass"); + if((lexerClass == null) || (parserClass == null)) { + URL extraClasspath[] = (URL[])params.get("extraClasspath"); + ClassLoader cl = ParserWrapper.class.getClassLoader(); + if(extraClasspath != null) { + cl = new TCSClassLoader(extraClasspath, cl); + } + if(lexerClass == null) { + try { + lexerClass = cl.loadClass(pack + name + "_ANTLR3Lexer"); + } catch (ClassNotFoundException e) { + throw new IllegalArgumentException("Unable to locate lexer class with name " + name); + } + } + if(parserClass == null) { + try { + parserClass = cl.loadClass(pack + name + "_ANTLR3Parser"); + } catch (ClassNotFoundException e) { + //throw new IllegalArgumentException("Unable to locate parser class with name " + name, e); + throw new IllegalArgumentException("Unable to locate parser class with name " + name); + } + } + } + + + ANTLRReaderStream stream = new ANTLRReaderStream(isr); + + lexer = (Lexer)lexerClass.getDeclaredConstructor(new Class[] {CharStream.class}).newInstance(new Object[] {stream}); + + CommonTokenStream tokens = new CommonTokenStream(lexer); + try { + TT_NL = ((Integer)parserClass.getField("NL").get(null)).intValue(); + tokens.setTokenTypeChannel(TT_NL, 99); + //tokens.discardTokenType(TT_NL); + } catch(Exception e) { + } + try { + TT_WS = ((Integer)parserClass.getField("WS").get(null)).intValue(); + tokens.discardTokenType(TT_WS); + } catch(Exception e) { + } + try { + TT_COMMENT = ((Integer)parserClass.getField("COMMENT").get(null)).intValue(); + tokens.setTokenTypeChannel(TT_COMMENT, 99); + //tokens.discardTokenType(TT_COMMENT); + } catch(Exception e) { + } + + parser = (Parser)parserClass.getDeclaredConstructor(new Class[] {TokenStream.class}).newInstance(new Object[] {tokens}); + + Field f = parserClass.getField("ei"); + f.set(parser, runtime); + + f = lexerClass.getField("ei"); + f.set(lexer, runtime); + + Method m = parserClass.getMethod(productionRule, new Class[] {}); + Object ret = null; + try { + ret = m.invoke(parser, new Object[] {}); + } catch(java.lang.reflect.InvocationTargetException ite) { + ite.getCause().printStackTrace(System.out); + } + + return ret; + } + + public void reportError(Exception e) { + RecognitionException re = (RecognitionException)e; + String msg = null; + if(re.input instanceof ANTLRStringStream) { + msg = lexer.getErrorMessage(re, lexer.getTokenNames()); + } else { + msg = parser.getErrorMessage(re, parser.getTokenNames()); + } + // TODO: try to use re.token to get a complete location (may not always be possible, like for lexer errors) + runtime.reportProblem("Error", msg, re.line + ":" + (re.charPositionInLine + 1)); + } + + /** + * set up a list with the comments before a model element. The list contains a set of tokens + * @param input + * @param index + * @return + */ + private List setTokenListBefore (TokenStream input, int index ){ + List cb = new ArrayList(); + if (index - 1 > 0 ) { + for (int i = index - 1 ; i >= 0 && ( + input.get(i).getType() == TT_COMMENT || input.get(i).getType() == TT_NL) ; i--) { + cb.add(input.get(i)); + } + } + return cb; + } + + /** + * sets the comments before a model element. + * the input is the current stream. the index is the index of the current token + */ + public void setCommentsBefore(Object ame, Object params_) { + if(params_ instanceof Object[]) { + Object params[] = (Object[])params_; + if((params[0] == null) || (params[1] == null)) return; + TokenStream input = (TokenStream)params[0]; + int index = ((Token)params[1]).getTokenIndex(); + + setComments(setTokenListBefore(input, index), ame, true, "commentsBefore"); + } + } + /** + * set us a list with the comments after a model element. + * @param input + * @param index + * @return set of tokens + */ + private List setTokenListAfter (TokenStream input, int index){ + List ca = new ArrayList(); + if (index + 1 > 0 ) { + for (int i = index + 1; + i < input.size() && ( + input.get(i).getType() == TT_COMMENT || input.get(i).getType() == TT_NL) + ; i++) { + ca.add(input.get(i)); + } + } + return ca; + } + /** + * + * @param commentList a list with a set of tokens + * @param ame an ASM model element + * @param inverseOrder indicates if the elements of the list should be created in a normal order or on the inverse order + * @param elementName the name of the element that stores the comments + */ + private void setComments (List commentList, Object ame, boolean inverseOrder, String elementName){ + if(runtime.isKeepComments()) { + if(commentList.size() > 0) { + List aList = new ArrayList(); + for (Iterator tokens = commentList.iterator(); tokens.hasNext();) { + Token token = (Token) tokens.next(); + if(token.getType() == TT_COMMENT) { + if (inverseOrder) + aList.add(0, token.getText()); + else + aList.add(token.getText()); + } else if(token.getType() == TT_NL) { + if(runtime.isKeepNL()) + if (inverseOrder) + aList.add(0, "\n"); + else + aList.add("\n"); + } + } + try { + runtime.getTargetModelAdapter().set(ame, elementName, aList); + } catch(Exception e) { + runtime.reportProblem("Warning", "could not set comments of " + ame + ", disabling further comments setting", ame); + runtime.setKeepComments(false); + } + } + } + + } + public void setCommentsAfter(Object ame, Object params_) { + if(params_ instanceof Object[]) { + Object params[] = (Object[])params_; + if((params[0] == null) || (params[1] == null)) return; + + TokenStream input = (TokenStream)params[0]; + int index = ((Token)params[1]).getTokenIndex(); + + setComments(setTokenListAfter(input, index), ame, false,"commentsAfter"); + + runtime.setLastWasCreation(false); + } + } + + public String getLocation(Object token) { + ANTLR3LocationToken lt = ((ANTLR3LocationToken)token); + return lt.getLine() + ":" + (lt.getCharPositionInLine() + 1) + "-" + lt.getEndLine() + ":" + (lt.getEndColumn() + 1); + } + + public int getStartOffset(Object token) { + CommonToken t = ((CommonToken)token); + return t.getStartIndex(); + } + + public int getEndOffset(Object token) { + CommonToken t = ((CommonToken)token); + return t.getStopIndex(); + } + + public Object getLastToken() { + return parser.getTokenStream().LT(-1); + } +} |