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Re^3: Mutator chaining considered harmful

by toma (Vicar)
on Dec 29, 2004 at 21:29 UTC ( #418092=note: print w/ replies, xml ) Need Help??

in reply to Re^2: Mutator chaining considered harmful
in thread Mutator chaining considered harmful

I suppose I could also use this :-)

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();
The => after the first arguments look nice, especially since the first arguments are instance handles, and I use them as a hash key.

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.

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

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