/// <summary>
/// Merges this set of dependencies with another set of dependencies.
/// </summary>
/// <param name="dependencies">Other dependencies that should be added onto the current dependencies.</param>
/// <returns>A set of dependencies that contains all dependencies of the merged sets.</returns>
public CodeDependencies Merge(CodeDependencies dependencies)
{
if (dependencies == null)
{
throw new ArgumentNullException(nameof(dependencies));
}
// Just concatenate the sequences; distinct is done
// in construction of the resulting set.
return(new CodeDependencies(
CodeFragments.Concat(dependencies.CodeFragments),
Imports.Concat(dependencies.Imports)));
}
/// <summary>
/// Creates a <see cref="CodeFragment"/>.
/// </summary>
/// <param name="id">ID that is used to refer to this code fragment.</param>
/// <param name="code">Actual code of this code fragment.</param>
/// <param name="dependencies">Dependencies that this code fragment requires to be valid.</param>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="id"/> or <paramref name="dependencies"/> is null.</exception>
/// <exception cref="ArgumentException">Thrown when <paramref name="code"/> is null or empty.</exception>
public CodeFragment(CodeFragmentId id, string code, CodeDependencies dependencies)
{
if (dependencies == null)
{
throw new ArgumentNullException(nameof(dependencies));
}
if (string.IsNullOrWhiteSpace(code))
{
throw new ArgumentException("Code cannot be empty.", nameof(code));
}
Id = id ?? throw new ArgumentNullException(nameof(id));
Code = code;
// A code fragment does not need to indicate a dependency on itself.
Dependencies = dependencies.WithoutCodeFragment(id);
}
