Add a meta statement #40

evhub · 2015-12-09T17:58:51Z

Syntax should be

meta <lhs>:
    <body>
    <return rhs>

which should have its <body> run and then compiled to

parse(lhs + " = " + ascii(rhs))

The text was updated successfully, but these errors were encountered:

evhub · 2015-12-09T18:24:52Z

This should allow support for both compile-time optimization like so

meta expensive_func_memo:
    return {arg: arg |> expensive_func for arg in common_args_to_expensive_func}

and embedded metaprogramming like so

meta val:
    data obj:
        def __repr__(self):
            return """<code>"""
    return obj()

evhub · 2015-12-09T18:25:48Z

Also added should be a simple in-line meta assignment like

meta concatenated_string = (
    "line 1"
    "line 2"
    "line 3"
    )

or from the above example

meta expensive_func_memo = {arg: arg |> expensive_func for arg in common_args_to_expensive_func}

evhub · 2017-06-20T03:49:41Z

Potentially just add a meta expression that gets evaluated at compile time and the result inlined. The code

meta(<expr>)

could inline the result of evaluating

() |*> (def () -> <expr>) |> repr

evhub added feature performance labels Dec 9, 2015

evhub added the won't fix label Dec 10, 2015

evhub closed this as completed Dec 10, 2015

evhub removed the won't fix label Jun 20, 2017

evhub reopened this Jun 20, 2017

evhub mentioned this issue Jul 26, 2017

Add const and/or final keywords #296

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