package slangc.model.statements;

import slangc.api.BytecodeInstructionWriter;
import slangc.api.Reporter;
import slangc.bytecode.TypeSignature;
import slangc.model.ExpressionModel;
import slangc.model.ExpressionOwner;
import slangc.model.InnerTypeScope;
import slangc.model.MemberModel;
import slangc.model.StatementModel;
import slangc.model.StatementOwner;
import slangc.model.TypeModel;
import slangc.parser.Branch;
import slangc.parser.Node;

public class AssertStatement extends StatementModel implements ExpressionOwner {
	private ExpressionModel expression;

	public AssertStatement(StatementOwner owner, Branch source) {
		super(owner, source);
		
		expression = ExpressionModel.construct(this, source.getSubnode(1));
	}

	@Override
	public void dump(Reporter reporter, String indent, String incr) {
		reporter.note("DUMP", indent + "> Assert:");
		expression.dump(reporter, indent + incr, incr);
	}
	
	@Override
	public int resolveExpressions() {
		return expression.resolveExpressions();
	}
	
	public ExpressionModel getExpression() {
		return expression;
	}
	
	//@Override
	public TypeModel getExpectedResult(ExpressionModel e) {
		// TODO: Should probably be boolean or some configurable type
		return null;
	}

	//@Override
	public InnerTypeScope getTypeScope() {
		return getOwner().getTypeScope();
	}


	//@Override
	public TypeModel resolveType(Node subnode) {
		return getOwner().resolveType(subnode);
	}


	//@Override
	public MemberModel getMethodOrField() {
		return getOwner().getMethodOrField();
	}
	
	//@Override
	public void innerGenerate(BytecodeInstructionWriter w) {
		TypeSignature t = getExpression().generate(w);
		w.genDrop(t); // TODO: Check result and/or something like w.genThrow();
	}
}