On Thu, Feb 02, 2023 at 05:28:03PM +0000, Bram Moolenaar wrote: > 3. Add a mechanism to name the members in the call, e.g. > var obj = Class.new(line = 5, column = 0) > This is similar to 2. but puts it in one line. > It requires marking a method to not use positional arguments.a > > Although 3. looks like a good solution, it requires implementing a new > mechanism. And disallowing positional arguments might be considered > weird, I cannot think of a language that has this functionality.
Python lets you declare that a function will not accept positional
arguments:
def fn(*, line, column, also_arg_with_a_default_value=42):
...
fn(line=5, column=0)
fn(column=0, line=5)
fn(0, 5) # <-- error, positional arguments not allowed
fn(line=5) # <-- error, 'column' argument is required
Marius Gedminas
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-- Christian Neukirchen
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