/**
* is_blanknode.
*
* @param arg a {@link lupos.rif.builtin.Argument} object.
* @return a {@link lupos.rif.builtin.BooleanLiteral} object.
*/
@Builtin(Name = "is-blanknode")
public static BooleanLiteral is_blanknode(final Argument arg) {
Item arg0 = arg.arguments.get(0);
if (arg0 instanceof LazyLiteral) {
arg0 = ((LazyLiteral) arg0).getLiteral();
}
return BooleanLiteral.create(arg0 instanceof AnonymousLiteral);
}
/**
* is_uri.
*
* @param arg a {@link lupos.rif.builtin.Argument} object.
* @return a {@link lupos.rif.builtin.BooleanLiteral} object.
*/
@Builtin(Name = "is-uri")
public static BooleanLiteral is_uri(final Argument arg) {
Item arg0 = arg.arguments.get(0);
if (arg0 instanceof LazyLiteral) {
arg0 = ((LazyLiteral) arg0).getLiteral();
}
return BooleanLiteral.create(arg0 instanceof URILiteral);
}
/**
* is_literal.
*
* @param arg a {@link lupos.rif.builtin.Argument} object.
* @return a {@link lupos.rif.builtin.BooleanLiteral} object.
*/
@Builtin(Name = "is-literal")
public static BooleanLiteral is_literal(final Argument arg) {
Item arg0 = arg.arguments.get(0);
if (arg0 instanceof LazyLiteral) {
arg0 = ((LazyLiteral) arg0).getLiteral();
}
return BooleanLiteral.create(!(arg0 instanceof AnonymousLiteral || arg0 instanceof URILiteral));
}
/**
* is_integer_expression.
*
* @param arg a {@link lupos.rif.builtin.Argument} object.
* @return a {@link lupos.rif.builtin.BooleanLiteral} object.
*/
@Builtin(Name = "is-integer-expression")
public static BooleanLiteral is_integer_expression(final Argument arg) {
Item arg0 = arg.arguments.get(0);
if (arg0 instanceof LazyLiteral) {
arg0 = ((LazyLiteral) arg0).getLiteral();
}
final double value = BuiltinHelper.numberFromLiteral((TypedLiteral) arg0);
return BooleanLiteral.create(Math.round(value) == value);
}
/*
* @see ASTVisitor#visit(BooleanLiteral)
*/
@Override
public boolean visit(BooleanLiteral node) {
if (node.booleanValue() == true) {
this.fBuffer.append("true"); // $NON-NLS-1$
} else {
this.fBuffer.append("false"); // $NON-NLS-1$
}
return false;
}
@Override
public Void visitBooleanLiteral(BooleanLiteral node) {
writer.print(node.getLiteral().getLexeme());
return null;
}
@Override
public void visit(BooleanLiteral expr) {
stack.add(new Constant(expr.getValue())); // $NON-NLS-1$
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ASTVisitor#visit(org.eclipse.jdt.core.dom.BooleanLiteral)
*/
public boolean visit(BooleanLiteral node) {
PTBooleanLiteral bl = InstantiationFactory.eINSTANCE.createPTBooleanLiteral();
bl.setBooleanValue(node.booleanValue());
expression = bl;
return false;
}