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Alias `std.meta.Instantiate`

Instantiates the given template with the given parameters.


						
				alias Instantiate(alias Template, Params...)
				 = Template!Params;

Used to work around syntactic limitations of D with regard to instantiating a template from an alias sequence (e.g. T[0]!(...) is not valid) or a template returning another template (e.g. Foo!(Bar)!(Baz) is not allowed).

Parameters

Name	Description
Template	The template to instantiate.
Params	The parameters with which to instantiate the template.

Returns

The instantiated template.

Example

// ApplyRight combined with Instantiate can be used to apply various
// templates to the same parameters.
import std.string : leftJustify, center, rightJustify;
alias functions = staticMap!(ApplyRight!(Instantiate, string),
                             leftJustify, center, rightJustify);
string result = "";
static foreach (f; functions)
{
    {
        auto x = &f; // not a template, but a function instantiation
        result ~= x("hello", 7);
        result ~= ";";
    }
}

writeln(result); // "hello  ; hello ;  hello;"

Authors

Walter Bright, David Nadlinger

License

Boost License 1.0.