Function frequency: Difference between revisions
m
→{{header|Phix}}
Line 1,160:
log_function_call(rtnNo)
</pre>
(I may have been a bit too literal about "function" here, specifically "not procedure")
Now create our test.exw program, which wraps the entire compiler:
<lang Phix>constant func_log = new_dict(),
Line 1,192 ⟶ 1,194:
traverse_dict(r_visitor,2,func_freq,rev:=true) -- top 10</lang>
Invoke using "p test -norun test" (note you can omit the ".exw" part of "test.exw")
Notes:<br>▼
The log_function call is passed an index into the symbol table.<br>▼
For performance reasons the compiler uses integer indexes, so we need to invoke▼
rebuild_callback() to replace them with human-readable names in the symbol table.<br>▼
For more details of S_Name and other constants/contents of the symbol table, see pglobals.e<br>▼
The compiler (p.exe) interprets test.exw(+p.exw) which compiles a third copy of itself under -norun.<br>▼
Notice that it is not necessary to compile the compiler (using p -c p) to test changes in it, and in ▼
fact weeks or months of work on the compiler often happens purely in interpreter mode, between actually▼
creating a new executable.<br>▼
If, instead, you want to know how many times a function is called at run-time, just add "with profile" ▼
to the source and it will create a ex.pro listing which tells you.▼
Lastly, remember to remove/comment out that log_function_call() in pmain.e▼
{{out}}
<pre>
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{90,"platform"}
</pre>
▲Notes:<br>
▲The log_function call is passed an index into the symbol table.<br>
▲For performance reasons the compiler uses integer indexes, so we need to invoke
▲rebuild_callback() to replace them with human-readable names in the symbol table.<br>
▲For more details of S_Name and other constants/contents of the symbol table, see pglobals.e<br>
▲The compiler (p.exe) interprets test.exw(+p.exw) which compiles a third copy of itself under -norun.<br>
▲Notice that it is not necessary to compile the compiler (using p -c p) to test changes in it, and in
▲fact weeks or months of work on the compiler often happens purely in interpreter mode, between actually
▲creating a new executable.<br>
▲If, instead, you want to know how many times a function is called at run-time, just add "with profile"
▲to the source and it will create a ex.pro listing which tells you.
▲Lastly, remember to remove/comment out that log_function_call() in pmain.e
=={{header|PicoLisp}}==
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