Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
DanielS`PatternMatcher`
PatternBytecodeInformation  |
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Details and Options
Examples
(2)
Basic Examples
(2)
Get compilation metadata for a simple pattern:
In[1]:=
bytecode=
[_Integer];
[bytecode]
 | CompilePatternToBytecode |
 | PatternBytecodeInformation |
Out[1]=
InstructionCount9,LabelCount3,ExprRegisterCount1,BoolRegisterCount1,BlockCount1,MaxBlockDepth1,JumpCount1,BacktrackPointCount0,LexicalBindings
Compare complexity of different patterns:
In[1]:=
patterns={_Integer,f[x_],f[x_,x_],_Integer|_Real};info=
[#]&/@patterns;
 | PatternBytecodeInformation |
 | CompilePatternToBytecode |
In[2]:=
Row[MapThread[Labeled[Dataset[#2],#1,Top]&,{patterns,info}]," "]
Out[2]=
_Integer | ||||||||||||||||||||
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f[x_] | ||||||||||||||||||||
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f[x_,x_] | ||||||||||||||||||||
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_Integer|_Real | ||||||||||||||||||||
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""