/// <summary>
/// Updates the internal state when the declaration string changes
/// </summary>
internal void ParseDeclaration()
{
if (!this.parsedDeclaration)
{
ValueDeclarationParser p = new ValueDeclarationParser(this.Declaration);
if (p.HasErrors)
{
throw new InvalidDeclarationStringException(
string.Format(
"The declaration contained one or more errors: {0}\n{1}",
this.Declaration,
p.Errors.Select(u => u.ToString()).ToNewLineSeparatedString()));
}
this.AttributeDeclarations = p.AttributeDeclarations.ToList();
if (this.AttributeDeclarations.Any(t => t.HasReferenceAttribute))
{
throw new InvalidDeclarationStringException("A complex declaration cannot contain reference attributes");
}
this.VariableDeclarations = p.VariableDeclarations.ToList();
if (this.VariableDeclarations.Any(t => t.IsUniqueAllocationVariable))
{
throw new InvalidDeclarationStringException("The declaration string contains a unique allocation variable");
}
this.parsedDeclaration = true;
}
}
/// <summary>
/// Occurs when the declaration string is updated
/// </summary>
private void ParseDeclaration()
{
if (!this.parsedDeclaration)
{
ValueDeclarationParser p = new ValueDeclarationParser(this.Declaration);
if (p.HasErrors)
{
throw new InvalidDeclarationStringException(
string.Format(
"The declaration contained one or more errors: {0}\n{1}",
this.Declaration,
p.Errors.Select(u => u.ToString()).ToNewLineSeparatedString()));
}
IList <AttributeDeclaration> attributeDeclarations = p.AttributeDeclarations.ToList();
IList <VariableDeclaration> variableDeclarations = p.VariableDeclarations.ToList();
int totalDeclarations = attributeDeclarations.Count + variableDeclarations.Count;
if (totalDeclarations > 1)
{
throw new InvalidDeclarationStringException("The declaration string contained too many values for simple declaration");
}
else if (totalDeclarations == 0)
{
throw new InvalidDeclarationStringException("The declaration string did not contain any attribute or variable declarations");
}
if (attributeDeclarations.Count == 1)
{
this.DeclarationComponent = attributeDeclarations.First();
}
else if (variableDeclarations.Count == 1)
{
VariableDeclaration variableDeclaration = variableDeclarations.First();
if (variableDeclaration.IsUniqueAllocationVariable)
{
throw new InvalidDeclarationStringException("A declaration containing only a unique allocator is not supported");
}
this.DeclarationComponent = variableDeclaration;
}
else
{
throw new InvalidOperationException();
}
this.parsedDeclaration = true;
}
}
