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ROOT Rule Checker

ROOT MEETING Jose Lo 22/04/2005. ROOT Rule Checker. What is Rule Checker. A software developed by Software Engineering Research Group at ITC-Irst. A tool that verifies automatically the coding conventions. ROOT coding conventions based on Taligent Rules. How to run the Rule Checker.

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ROOT Rule Checker

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  1. ROOT MEETING Jose Lo 22/04/2005 ROOT Rule Checker

  2. What is Rule Checker • A software developed by Software Engineering Research Group at ITC-Irst. • A tool that verifies automatically the coding conventions. • ROOT coding conventions based on Taligent Rules

  3. How to run the Rule Checker • To check all files • make check-all • To check one specific module (e.g. base) • make check-base • Will create a sub-directory “check” • Violations files in *.viol • To check one specific file • g++ -E -I... file.cxx > file.i • patch4alice.prl file.i • java rules.ROOT.RuleChecker file.i > file.viol

  4. Rules • RN 1 – Names should be chosen with care and should be meaningful. • RN 2 – In names that consist of more than one word: • The words are written together. • The first letter of the name can be lower case or capitalized (depends on the entity). • The first letters of the other words are always capitalized.

  5. Rules (cont.) • RN 3 – Types begin with a capital letter and end with '_t' • RN 4 – Base classes begin with 'T' • RN 6 – Enumeration types begin 'E' • RN 7 – Avoid Raw C types • RN 9 – Attributes begin with 'f' and functions begin with a capital letter

  6. Rules (cont.) • RN 10 – Static variables begin with 'g' • RN 11 – Static data members begin with 'fg' • RN 12 – Local variables and parameters begin with a lowercase word • RN 13 – Constants begin with 'k', including names of enumeration, constants and constants statics

  7. Table Table

  8. Example - RN3 RULE RN3 violated: @ Type begin with a capital letter and end with '_t' --> The Type: uuid_time_t in file TUUID.h does not start with a capital letter -------------------------------------------------- class TUUID { .... struct uuid_time_t { UInt_t high; UInt_t low; };

  9. Example - RN4 @ Classes name begin with "T" --> the Class: RStl does not start with a 'T' -------------------------------------------------- class Rstl { ...

  10. Example – RN 6 RULE RN6 violated: @ Enumeration types begin with"E" --> the enumerator: action [file: Match.cxx 40] does not start with "E" -------------------------------------------------- enum action { M_BOL = (0x8000 | '^'), M_EOL = (0x8000 | '$'), M_ANY = (0x8000 | '.'), ..... };

  11. Example - RN7 RULE RN7 violated: @ Avoid using C raw types --> the member data: n in class: TSystem in method: ExpandFileName() [TSystem.cxx 857] is a raw C type: int -------------------------------------------------- const char *TSystem::ExpandFileName(const char *fname) { .... int n, ier, iter, lx, ncopy;

  12. Example – RN 9 RULE RN9 violated: @ Member function names start with a capital --> the method: cd(const char *): Bool_t in class: TDirectory does not start with a capital -------------------------------------------------- Bool_t TDirectory::cd(const char *path) { ... }

  13. Example – RN 10 RULE RN10 violated: @ Static variables start with a prefix "g" @ applies to static variables in functions and global variables --> the static data member: framewasdrawn in class: null does not start with a prefix "g" -------------------------------------------------- void TView::ExecuteRotateView(Int_t event, Int_t px, Int_t py) { static Int_t system, framewasdrawn; ...

  14. Example – RN 11 RULE RN11 violated: @ Static data member names start with a prefix "fg" --> the static data member: s_objectTable in class: MemoryRegulator does not start with a prefix "fg" -------------------------------------------------- class MemoryRegulator : public TObject { .... static objmap_t s_objectTable;

  15. Example – RN 12 RULE RN12 violated: @ Local variables names start with a lower case letter --> the variable: X [file: TMath.cxx 987] in function: Voigt(Double_t, Double_t, Double_t, Int_t): Double_t does not start with a lower case letter -------------------------------------------------- Double_t TMath::Voigt(Double_t x, Double_t sigma, Double_t lg, Int_t R) { .... Double_t X, Y, K;

  16. Example – RN 13 RULE RN13 violated: @ Constant, including names in enumeration types @ and constant static start with a prefix "k" --> the constant: p1 [TMath.cxx 3237] does not start with a prefix "k" -------------------------------------------------- Double_t TMath::BesselI1(Double_t x) { .... const Double_t p1=0.5, p2=0.87890594, p3=0.51498869,

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