lengthestimator.java

Python Development Environment (Python IDE plugin for Eclipse). Features editor, code completion, re

/*
 * Author: atotic
 * Created on Apr 8, 2004
 * License: Common Public License v1.0
 */
package org.python.pydev.editor.model;

import org.python.pydev.parser.jython.SimpleNode;
import org.python.pydev.parser.jython.ast.Assert;
import org.python.pydev.parser.jython.ast.Assign;
import org.python.pydev.parser.jython.ast.Attribute;
import org.python.pydev.parser.jython.ast.AugAssign;
import org.python.pydev.parser.jython.ast.BinOp;
import org.python.pydev.parser.jython.ast.BoolOp;
import org.python.pydev.parser.jython.ast.Break;
import org.python.pydev.parser.jython.ast.Call;
import org.python.pydev.parser.jython.ast.ClassDef;
import org.python.pydev.parser.jython.ast.Compare;
import org.python.pydev.parser.jython.ast.Continue;
import org.python.pydev.parser.jython.ast.Delete;
import org.python.pydev.parser.jython.ast.Dict;
import org.python.pydev.parser.jython.ast.Ellipsis;
import org.python.pydev.parser.jython.ast.Exec;
import org.python.pydev.parser.jython.ast.Expr;
import org.python.pydev.parser.jython.ast.Expression;
import org.python.pydev.parser.jython.ast.ExtSlice;
import org.python.pydev.parser.jython.ast.For;
import org.python.pydev.parser.jython.ast.FunctionDef;
import org.python.pydev.parser.jython.ast.Global;
import org.python.pydev.parser.jython.ast.If;
import org.python.pydev.parser.jython.ast.Import;
import org.python.pydev.parser.jython.ast.ImportFrom;
import org.python.pydev.parser.jython.ast.Index;
import org.python.pydev.parser.jython.ast.Interactive;
import org.python.pydev.parser.jython.ast.Lambda;
import org.python.pydev.parser.jython.ast.List;
import org.python.pydev.parser.jython.ast.ListComp;
import org.python.pydev.parser.jython.ast.Module;
import org.python.pydev.parser.jython.ast.Name;
import org.python.pydev.parser.jython.ast.NameTok;
import org.python.pydev.parser.jython.ast.Num;
import org.python.pydev.parser.jython.ast.Pass;
import org.python.pydev.parser.jython.ast.Print;
import org.python.pydev.parser.jython.ast.Raise;
import org.python.pydev.parser.jython.ast.Repr;
import org.python.pydev.parser.jython.ast.Return;
import org.python.pydev.parser.jython.ast.Slice;
import org.python.pydev.parser.jython.ast.Str;
import org.python.pydev.parser.jython.ast.Subscript;
import org.python.pydev.parser.jython.ast.Suite;
import org.python.pydev.parser.jython.ast.TryExcept;
import org.python.pydev.parser.jython.ast.TryFinally;
import org.python.pydev.parser.jython.ast.Tuple;
import org.python.pydev.parser.jython.ast.UnaryOp;
import org.python.pydev.parser.jython.ast.VisitorBase;
import org.python.pydev.parser.jython.ast.While;
import org.python.pydev.parser.jython.ast.Yield;

/**
 * LengthEstimator estimates a lenght of a node in characters.
 * 
 * We need this to properly determine length of Nodes in the model.
 * Jython's parser only gives us the start of the node.
 * The estimates in this file are heuristic.
 */
public class LengthEstimator extends VisitorBase {

	int length = 0;

	int getLength() {
		return length;
	}

	protected Object unhandled_node(SimpleNode node) throws Exception {
			return null;
	}

	public void traverse(SimpleNode node) throws Exception {
		node.traverse(this);
	}
	
	public Object visitName(Name node) throws Exception {
		length += node.id.length();
		return null;
	}

	public Object visitAttribute(Attribute node) throws Exception {
		length += ((NameTok)node.attr).id.length() + 1;	// +1 for '.'
		node.traverse(this);
		return null;
	}

	public Object visitCall(Call node) throws Exception {
		LengthEstimator e2 = new LengthEstimator();
		node.traverse(e2);
		length += e2.getLength();
		return null;
	}

	public Object visitAssert(Assert node) throws Exception {
//		System.out.println("lenVisitAssert:" + node.toString(""));
		return null;
	}


	public Object visitAssign(Assign node) throws Exception {
//		System.out.println("lenVisitAssign:" + node.toString(""));
		return null;
	}

	public Object visitAugAssign(AugAssign node) throws Exception {
//		System.out.println("lenVisitAugAssign:" + node.toString(""));
		return null;
	}


	public Object visitBinOp(BinOp node) throws Exception {
//		System.out.println("lenVisitBinOp:" + node.toString(""));
		return null;
	}


	public Object visitBoolOp(BoolOp node) throws Exception {
//		System.out.println("lenVisitBoolOp:" + node.toString(""));
		return null;
	}


	public Object visitBreak(Break node) throws Exception {
//		System.out.println("lenVisitBreak:" + node.toString(""));
		return null;
	}

	public Object visitClassDef(ClassDef node) throws Exception {
//		System.out.println("lenVisitClassDef:" + node.name);
		return null;
	}


	public Object visitCompare(Compare node) throws Exception {
//		System.out.println("lenVisitCompare:" + node.toString(""));
		return null;
	}


	public Object visitContinue(Continue node) throws Exception {
//		System.out.println("lenVisitContinue:" + node.toString(""));
		return null;
	}


	public Object visitDelete(Delete node) throws Exception {
//		System.out.println("lenVisitDelete:" + node.toString(""));
		return null;
	}


	public Object visitDict(Dict node) throws Exception {
//		System.out.println("lenVisitDict:" + node.toString(""));
		return null;
	}


	public Object visitEllipsis(Ellipsis node) throws Exception {
//		System.out.println("lenVisitEllipsis:" + node.toString(""));
		return null;
	}


	public Object visitExec(Exec node) throws Exception {
//		System.out.println("lenVisitExec:" + node.toString(""));
		return null;
	}


	public Object visitExpr(Expr node) throws Exception {
//		System.out.println("lenVisitExpr:" + node.toString(""));
		return null;
	}


	public Object visitExpression(Expression node) throws Exception {
//		System.out.println("lenVisitExpression:" + node.toString(""));
		return null;
	}


	public Object visitExtSlice(ExtSlice node) throws Exception {
//		System.out.println("lenVisitExtSlice:" + node.toString(""));
		return null;
	}


	public Object visitFor(For node) throws Exception {
//		System.out.println("lenVisitFor:" + node.toString(""));
		return null;
	}


	public Object visitFunctionDef(FunctionDef node) throws Exception {
//		System.out.println("lenVisitFunctionDef:" + node.toString(""));
		return null;
	}


	public Object visitGlobal(Global node) throws Exception {
//		System.out.println("lenVisitGlobal:" + node.toString(""));
		return null;
	}


	public Object visitIf(If node) throws Exception {
//		System.out.println("lenVisitIf:" + node.toString(""));
		return null;
	}


	public Object visitImport(Import node) throws Exception {
//		System.out.println("lenVisitImport:" + node.toString(""));
		return null;
	}


	public Object visitImportFrom(ImportFrom node) throws Exception {
//		System.out.println("lenVisitImportFrom:" + node.toString(""));
		return null;
	}


	public Object visitIndex(Index node) throws Exception {
//		System.out.println("lenVisitIndex:" + node.toString(""));
		return null;
	}


	public Object visitInteractive(Interactive node) throws Exception {
//		System.out.println("lenVisitInteractive:" + node.toString(""));
		return null;
	}


	public Object visitLambda(Lambda node) throws Exception {
//		System.out.println("lenVisitLambda:" + node.toString(""));
		return null;
	}


	public Object visitList(List node) throws Exception {
//		System.out.println("lenVisitList:" + node.toString(""));
		return null;
	}


	public Object visitListComp(ListComp node) throws Exception {
//		System.out.println("lenVisitListComp:" + node.toString(""));
		return null;
	}


	public Object visitModule(Module node) throws Exception {
//		System.out.println("lenVisitModule:" + node.toString(""));
		return null;
	}

	public Object visitNum(Num node) throws Exception {
//		System.out.println("lenVisitNum:" + node.toString(""));
		return null;
	}


	public Object visitPass(Pass node) throws Exception {
//		System.out.println("lenVisitPass:" + node.toString(""));
		return null;
	}


	public Object visitPrint(Print node) throws Exception {
//		System.out.println("lenVisitPrint:" + node.toString(""));
		return null;
	}


	public Object visitRaise(Raise node) throws Exception {
//		System.out.println("lenVisitRaise:" + node.toString(""));
		return null;
	}


	public Object visitRepr(Repr node) throws Exception {
//		System.out.println("lenVisitRepr:" + node.toString(""));
		return null;
	}


	public Object visitReturn(Return node) throws Exception {
//		System.out.println("lenVisitReturn:" + node.toString(""));
		return null;
	}


	public Object visitSlice(Slice node) throws Exception {
//		System.out.println("lenVisitSlice:" + node.toString(""));
		return null;
	}


	public Object visitStr(Str node) throws Exception {
//		System.out.println("lenVisitStr:" + node.toString(""));
		return null;
	}


	public Object visitSubscript(Subscript node) throws Exception {
//		System.out.println("lenVisitSubscript:" + node.toString(""));
		return null;
	}


	public Object visitSuite(Suite node) throws Exception {
//		System.out.println("lenVisitSuite:" + node.toString(""));
	return null;
	}


	public Object visitTryExcept(TryExcept node) throws Exception {
//		System.out.println("lenVisitTryExcept:" + node.toString(""));
		return null;
	}


	public Object visitTryFinally(TryFinally node) throws Exception {
//		System.out.println("lenVisitTryFinally:" + node.toString(""));
		return null;
	}


	public Object visitTuple(Tuple node) throws Exception {
//		System.out.println("lenVisitTuple:" + node.toString(""));
		return null;
	}


	public Object visitUnaryOp(UnaryOp node) throws Exception {
//		System.out.println("lenVisitUnaryOp:" + node.toString(""));
		return null;
	}


	public Object visitWhile(While node) throws Exception {
//		System.out.println("lenVisitWhile:" + node.toString(""));
		return null;
	}


	public Object visitYield(Yield node) throws Exception {
//		System.out.println("lenVisitYield:" + node.toString(""));
		return null;
	}
}