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Improve performance of ! (replicate) (#1084)

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* Implement ! with weighted repeatCycles
* reimplement repeatCycles without array filling
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Alex McLean 2024-05-02 23:37:32 +01:00 • committed by GitHub
parent deed379dba
commit 34e9d73908
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4 changed files with 31 additions and 17 deletions
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packages/mini/krill.pegjs
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@ -135,7 +135,14 @@ op_weight = ws ("@" / "_") a:number?
{ return x => x.options_['weight'] = (x.options_['weight'] ?? 1) + (a ?? 2) - 1 }
op_replicate = ws "!" a:number?
{ return x => x.options_['reps'] = (x.options_['reps'] ?? 1) + (a ?? 2) - 1 }
{ return x => {// A bit fiddly, to support both x!4 and x!!! as equivalent..
const reps = (x.options_['reps'] ?? 1) + (a ?? 2) - 1;
x.options_['reps'] = reps;
x.options_['ops'] = x.options_['ops'].filter(x => x.type_ !== "replicate");
x.options_['ops'].push({ type_: "replicate", arguments_ :{ amount:reps }});
x.options_['weight'] = reps;
}
}
op_bjorklund = "(" ws p:slice_with_ops ws comma ws s:slice_with_ops ws comma? ws r:slice_with_ops? ws ")"
{ return x => x.options_['ops'].push({ type_: "bjorklund", arguments_ :{ pulse: p, step:s, rotation:r }}) }