Examples with NullValue dyvilx.tools.compiler.ast.expression.constant.NullValue used on opensource projects

Example 1 with NullValue

use of dyvilx.tools.compiler.ast.expression.constant.NullValue in project Dyvil by Dyvil.

the class CaseClassMetadata method createUnapplyAnyMethod.

private CodeMethod createUnapplyAnyMethod() {
    // static final func unapply<TypeParams...>(value: any) -> (T...)?
    final SourcePosition position = this.theClass.position();
    final AttributeList attributes = AttributeList.of(Modifiers.PUBLIC | Modifiers.STATIC_FINAL | Modifiers.GENERATED);
    final IType type = NullableType.apply(this.getUnapplyReturnType());
    final CodeMethod unapply = new CodeMethod(this.theClass, Names.unapply, type, attributes);
    unapply.setPosition(position);
    unapply.getTypeParameters().addAll(this.theClass.getTypeParameters());
    final CodeParameter parameter = new CodeParameter(unapply, position, Names.value, Types.NULLABLE_ANY);
    unapply.getParameters().add(parameter);
    // = (param is This) ? unapply(param as This) : null
    final InstanceOfOperator isOperator = new InstanceOfOperator(new FieldAccess(parameter), this.theClass.getClassType());
    final CastOperator castOperator = new CastOperator(new FieldAccess(parameter), this.theClass.getThisType());
    final IValue call = new MethodCall(position, null, Names.unapply, new ArgumentList(castOperator));
    final IfStatement ifStatement = new IfStatement(isOperator, call, new NullValue());
    unapply.setValue(ifStatement);
    return unapply;
}