[jboss-svn-commits] JBL Code SVN: r20042 - labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang.

[jboss-svn-commits at lists.jboss.org]

Author: porcelli
Date: 2008-05-19 13:39:55 -0400 (Mon, 19 May 2008)
New Revision: 20042

Added:
   labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsToken.java
   labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTree.java
   labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTreeAdaptor.java
Log:
ANTLR based classes to adress DLR needs:
 - Keep offset info
 - Add a type info for each Tree (it will be used by editor)

Added: labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsToken.java
===================================================================
--- labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsToken.java	                        (rev 0)
+++ labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsToken.java	2008-05-19 17:39:55 UTC (rev 20042)
@@ -0,0 +1,33 @@
+package org.drools.lang;
+
+import org.antlr.runtime.CharStream;
+import org.antlr.runtime.CommonToken;
+import org.antlr.runtime.Token;
+
+public class DroolsToken extends CommonToken {
+
+	private static final long serialVersionUID = 3635806195731072579L;
+
+	public DroolsToken(int type) {
+		super(type);
+	}
+
+	public DroolsToken(CharStream input, int type, int channel, int start,
+			int stop) {
+		super(input, type, channel, start, stop);
+	}
+
+	public DroolsToken(int type, String text) {
+		super(type, text);
+	}
+
+	public DroolsToken(Token oldToken) {
+		super(oldToken);
+		if (null != oldToken
+				&& (oldToken.getClass().equals(CommonToken.class) || oldToken
+						.getClass().equals(DroolsToken.class))) {
+			start = ((CommonToken) oldToken).getStartIndex();
+			stop = ((CommonToken) oldToken).getStopIndex();
+		}
+	}
+}
\ No newline at end of file


Property changes on: labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsToken.java
___________________________________________________________________
Name: svn:eol-style
   + native

Added: labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTree.java
===================================================================
--- labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTree.java	                        (rev 0)
+++ labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTree.java	2008-05-19 17:39:55 UTC (rev 20042)
@@ -0,0 +1,48 @@
+package org.drools.lang;
+
+import org.antlr.runtime.Token;
+import org.antlr.runtime.tree.CommonTree;
+import org.antlr.runtime.tree.Tree;
+
+public class DroolsTree extends CommonTree {
+	int startCharOffset = -1;
+	int endCharOffset = -1;
+	int editorElementType = -1;
+
+	public DroolsTree(DroolsTree node) {
+		super(node);
+		this.token = node.token;
+	}
+
+	public DroolsTree(Token token) {
+		super(token);
+	}
+
+	public Tree dupNode() {
+		return new DroolsTree(this);
+	}
+
+	public int getStartCharOffset() {
+		return startCharOffset;
+	}
+
+	public void setStartCharOffset(int startCharOffset) {
+		this.startCharOffset = startCharOffset;
+	}
+
+	public int getEndCharOffset() {
+		return endCharOffset;
+	}
+
+	public void setEndCharOffset(int endCharOffset) {
+		this.endCharOffset = endCharOffset;
+	}
+
+	public int getEditorElementType() {
+		return editorElementType;
+	}
+
+	public void setEditorElementType(int editorElementType) {
+		this.editorElementType = editorElementType;
+	}
+}
\ No newline at end of file


Property changes on: labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTree.java
___________________________________________________________________
Name: svn:eol-style
   + native

Added: labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTreeAdaptor.java
===================================================================
--- labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTreeAdaptor.java	                        (rev 0)
+++ labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTreeAdaptor.java	2008-05-19 17:39:55 UTC (rev 20042)
@@ -0,0 +1,64 @@
+package org.drools.lang;
+
+import org.antlr.runtime.CommonToken;
+import org.antlr.runtime.Token;
+import org.antlr.runtime.tree.CommonTreeAdaptor;
+import org.antlr.runtime.tree.Tree;
+
+public class DroolsTreeAdaptor extends CommonTreeAdaptor {
+
+	public Object create(Token token) {
+		DroolsTree tree = new DroolsTree(token);
+		if (null != token
+				&& (token.getClass().equals(CommonToken.class) || token
+						.getClass().equals(DroolsToken.class))) {
+			tree.setStartCharOffset(((CommonToken) token).getStartIndex());
+			tree.setEndCharOffset(((CommonToken) token).getStopIndex());
+		}
+		return tree;
+	}
+
+	/**
+	 * Add a child to the tree t. If child is a flat tree (a list), make all in
+	 * list children of t. Warning: if t has no children, but child does and
+	 * child isNil then you can decide it is ok to move children to t via
+	 * t.children = child.children; i.e., without copying the array. Just make
+	 * sure that this is consistent with have the user will build ASTs.
+	 */
+	public void addChild(Object t, Object child) {
+		if (t != null && child != null) {
+			DroolsTree tParent = (DroolsTree) t;
+			DroolsTree tChild = (DroolsTree) child;
+
+			if (0 >= tParent.getStartCharOffset()) {
+				tParent.setStartCharOffset(tChild.getStartCharOffset());
+				tParent.setEndCharOffset(tChild.getEndCharOffset());
+			}
+			if (0 < tParent.getChildCount()) {
+				tParent.setEndCharOffset(tChild.getEndCharOffset());
+			}
+
+			if (DRLLexer.RIGHT_PAREN != tChild.getType()) {
+				((Tree) t).addChild((Tree) child);
+			}
+		}
+	}
+
+	public Object create(int tokenType, Token fromToken, String text) {
+		if (fromToken instanceof DroolsToken){
+			DroolsTree result = (DroolsTree) super.create(tokenType, fromToken, text);		
+			result.setStartCharOffset(((DroolsToken) fromToken).getStartIndex());
+			result.setEndCharOffset(result.getStartCharOffset() + text.length());
+			return result;			
+		}
+		return super.create(tokenType, fromToken, text);
+	}
+
+	public Token createToken(int tokenType, String text) {
+		return new DroolsToken(tokenType, text);
+	}
+
+	public Token createToken(Token fromToken) {
+		return new DroolsToken(fromToken);
+	}
+}
\ No newline at end of file


Property changes on: labs/jbossrules/branches/parser-rewrite/drools-compiler/src/main/java/org/drools/lang/DroolsTreeAdaptor.java
___________________________________________________________________
Name: svn:eol-style
   + native