XOTclProcCallProcessor.java

package org.eclipse.dltk.xotcl.internal.core.parser.processors.xotcl;

import org.eclipse.dltk.ast.ASTListNode;
import org.eclipse.dltk.ast.ASTNode;
import org.eclipse.dltk.ast.declarations.TypeDeclaration;
import org.eclipse.dltk.ast.expressions.Expression;
import org.eclipse.dltk.ast.references.SimpleReference;
import org.eclipse.dltk.compiler.problem.ProblemSeverities;
import org.eclipse.dltk.tcl.ast.TclStatement;
import org.eclipse.dltk.tcl.core.AbstractTclCommandProcessor;
import org.eclipse.dltk.tcl.core.ITclParser;
import org.eclipse.dltk.xotcl.core.ast.xotcl.XOTclExInstanceVariable;
import org.eclipse.dltk.xotcl.core.ast.xotcl.XOTclInstanceVariable;
import org.eclipse.dltk.xotcl.core.ast.xotcl.XOTclObjectDeclaration;
import org.eclipse.dltk.xotcl.core.ast.xotcl.XOTclProcCallStatement;

/**
 * Support Object, Class, instance and object instanceof proc definitions.
 * 
 * @author haiodo
 */
public class XOTclProcCallProcessor extends AbstractTclCommandProcessor {

	public XOTclProcCallProcessor() {
	}

	public ASTNode process(TclStatement statement, ITclParser parser, 
			ASTNode parent) {
		Object param = this.getDetectedParameter();
		if (param == null
				|| !(param instanceof TypeDeclaration
						|| param instanceof XOTclObjectDeclaration
						|| param instanceof XOTclInstanceVariable || param instanceof XOTclExInstanceVariable)) {
			return null;
		}

		Expression nameExpr = statement.getAt(1);
		if (!(nameExpr instanceof SimpleReference)) {
			this.report(parser, "A proc name expected.", nameExpr,
					ProblemSeverities.Error);
			return null;
		}
		SimpleReference name = (SimpleReference) nameExpr;
		ASTListNode args = null;
		if (statement.getCount() > 2) {
			args = new ASTListNode(name.sourceEnd() + 1, statement.sourceEnd());
			for (int i = 2; i < statement.getCount(); i++) {
				args.addNode(statement.getAt(i));
			}
		}

		XOTclProcCallStatement call = new XOTclProcCallStatement(name,
				(ASTNode) param, args);
		call.setInstNameRef((SimpleReference) statement.getAt(0));
		call.setStart(statement.sourceStart());
		call.setEnd(statement.sourceEnd());
		this.addToParent(parent, call);
		return call;

	}

}