/// <summary>
/// Creates a new variable instance based on the provided variable declaration.
/// </summary>
/// <param name="variableDeclaration">The variable declaration this variable is based on.</param>
public PVariable(VariableDeclaration variableDeclaration)
{
if (variableDeclaration == null)
throw new ArgumentNullException("variableDeclaration");
_declaration = variableDeclaration;
}
/// <summary>
/// Creates a new (global) variable.
/// </summary>
/// <param name = "name">An identifier to be stored in the variable's <see cref = "Meta">MetaTable</see>.</param>
/// <remarks>
/// This constructor creates a <see cref = "MetaTable" />.
/// </remarks>
/// <exception cref = "ArgumentNullException"><paramref name = "name" /> is null.</exception>
/// <exception cref = "ArgumentException"><paramref name = "name" /> is empty.</exception>
public PVariable(string name)
{
if (name == null)
throw new ArgumentNullException("name");
if (name.Length == 0)
throw new ArgumentException("name is expected to contain at least one character.");
_declaration = VariableDeclaration.Create(name);
}