functionport.java

来自「plugin for eclipse」· Java 代码 · 共 81 行

/*
 * Created on Jun 9, 2005
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package isis.anp.nesc.ot;

import isis.anp.common.CodeLocation;
import isis.anp.common.ObjectTreeBuilderContext;
import isis.anp.common.ParserMessage;
import isis.anp.nesc.ot.types.FunctionType;

/**
 * @author sallai
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class FunctionPort extends Port {
	FunctionDeclaration functionDeclaration;
	ObjectTreeBuilderContext ctx;
	
	public FunctionPort(ObjectTreeBuilderContext ctx) {
		this.ctx = ctx;
	}
	
	/* (non-Javadoc)
	 * @see parser.nesc.ot.Port#getPortName()
	 */
	public String getPortName() {
		return getName();
	}

	public void setDeclaration(Declaration decln) {
		if(decln instanceof FunctionDeclaration) {
			functionDeclaration = (FunctionDeclaration) decln;
			if(functionDeclaration.getNameNode()!=null) {
				this.setNameNode(functionDeclaration.getNameNode());
			}
		} else {
			TypeResolutionException tre = new TypeResolutionException("Port is not an interface nor a function declaration", decln.getDefNode());
			ctx.addMsg(new ParserMessage(ParserMessage.ERROR, tre.getMessage(), new CodeLocation( decln.getDefNode()), tre));
		}
	}
	
	public void outline(Outline o) {
		o.addTabs();
		if (direction == Port.Direction.USES) {
			o.append("uses");
			o.ensureSpace();
		} else {
			o.append("provides");
			o.ensureSpace();
		}
		
		int tabs = o.getTabs();
		o.setTabs(0);
		functionDeclaration.outline(o);
		o.append(';');
		o.setTabs(tabs);
	}

	public String getTypeString() {
		if(this.functionDeclaration == null) return null;
		if(this.functionDeclaration.getType()==null) return null;
		if(!(this.functionDeclaration.getType() instanceof FunctionType)) return null;
		
		FunctionType t = (FunctionType)(this.functionDeclaration.getType());

		// FIXME: this is a hack... types should be able to check for compatibility
		Outline o = new Outline();
		t.outline(o);
		String typeString = o.toString();
//		System.out.println("Type string is: " + typeString);
		return typeString;
	}
	
	
}