/** @see jaskell.compiler.JaskellVisitor#visit(Conditional) */
public Object visit(Conditional conditional) {
Type iff = (Type) conditional.getIfFalse().visit(this);
Type ift = (Type) conditional.getIfTrue().visit(this);
Type tcond = (Type) conditional.getCondition().visit(this);
tcond = tu.unify(tcond, Primitives.BOOL, typeVariablesMap);
if (!(tcond.equals(Primitives.BOOL)))
throw new TypeError("Conditional expression is not of type Bool : " + tcond);
/* unify false and true parts */
Type uni = tu.unify(iff, ift, typeVariablesMap);
conditional.setType(uni);
return uni;
}
/*
* (non-Javadoc)
*
* @see jaskell.compiler.JaskellVisitor#visit(jaskell.compiler.core.Conditional)
*/
public Object visit(Conditional conditional) {
conditional.setCondition((Expression) conditional.getCondition().visit(this));
conditional.setIfFalse((Expression) conditional.getIfFalse().visit(this));
conditional.setIfTrue((Expression) conditional.getIfTrue().visit(this));
return conditional;
}