/// <summary>
/// Construct a ForExpr with an attribute and an unroll depth.
/// </summary>
/// <param name="initializer">Initializer expression.</param>
/// <param name="test">Test expression, must evaluate to a scalar boolean.</param>
/// <param name="update">Update expression.</param>
/// <param name="attributes">Loop attribute.</param>
/// <param name="unrollDepth">Depth with which to unroll the loop, used with LoopAttributes.UNROLL</param>
public ForExpr(DeclExpr initializer, Expr test, Expr update, LoopAttributes attributes, int unrollDepth)
{
if (!test.HasValue())
throw new HlslDomException("Test expression doesn't return a value!");
if (!(test.Value.ValueType is BoolType))
throw new HlslDomException("Test expression does not return a boolean value!");
Initializer = initializer;
Test = test;
Update = update;
Attributes = attributes;
UnrollDepth = unrollDepth;
}
/// <summary>
/// Construct a ForExpr with an attribute.
/// </summary>
/// <param name="initializer">Initializer expression.</param>
/// <param name="test">Test expression, must evaluate to a scalar boolean.</param>
/// <param name="update">Update expression.</param>
/// <param name="attributes">Loop attribute.</param>
public ForExpr(DeclExpr initializer, Expr test, Expr update, LoopAttributes attributes)
: this(initializer, test, update, attributes, 0)
{
if (attributes == LoopAttributes.UNROLL)
throw new HlslDomException("Unroll attribute specified without an unroll depth!");
}
