Re^2: Mutator chaining considered harmful

Apart from kappa's points: read my root node update. Here's what that would look like with a good interface:

my $s = Scope->new( 'probe' => $netlist );
$s->anatrace(
    in    => [ 'System input', 'active', 1 ],
    out_1 => [ 'Lpf bank1', 'active', 1 ],
    out_2 => [ 'Lpf bank2', 'active', 1024 ],
    out   => [ 'System output', 'active', 1 ],
    bank2 => [ 'Switch pos', 'active', 1 ],
);
$s->generate();
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Makeshifts last the longest.

Comment on Re^2: Mutator chaining considered harmful Download Code

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Re^3: Mutator chaining considered harmful
by toma (Vicar) on Dec 29, 2004 at 21:29 UTC

my $s = Scope->new( probe => $netlist )
             ->anatrace(
                 in    => [ 'System input', 'active', 1 ],
                 out_1 => [ 'Lpf bank1', 'active', 1 ],
                 out_2 => [ 'Lpf bank2', 'active', 1024 ],
                 out   => [ 'System output', 'active', 1 ],
                 bank2 => [ 'Switch pos', 'active', 1 ],
               )
             ->generate();
[download]

=>

In this example the arguments to anatrace really aren't mutators, they are constructors of sub-objects. They are waveforms being added to a scope display.

update
Is the problem that you perceive just with mutators, or does it also apply to sub-object constructors? Can you provide examples of acceptable method chaining, and contrast it with problematic method chaining?

It should work perfectly the first time! - toma

[reply]
[d/l]


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