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| author | Delilah Hoare <delilah@dhoare.me> | 2022-03-05 23:37:07 +1100 |
|---|---|---|
| committer | Cole Faust <colecfaust@gmail.com> | 2022-11-28 12:42:27 -0800 |
| commit | 172ebf84cace3d848f91ae8532a91ebbb79b0dcc (patch) | |
| tree | 44553f75356d78b9f22f12e81a67cb7a10672dab | |
| parent | 1c7fee78f28175988570a6f00decb6d6df45828f (diff) | |
| download | kati-172ebf84cace3d848f91ae8532a91ebbb79b0dcc.tar.gz | |
Implement $?
| -rw-r--r-- | src/command.cc | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/command.cc b/src/command.cc index 5268b9e..431b8ae 100644 --- a/src/command.cc +++ b/src/command.cc @@ -21,6 +21,7 @@ #include "dep.h" #include "eval.h" +#include "fileutil.h" #include "flags.h" #include "log.h" #include "strutil.h" @@ -67,6 +68,7 @@ DECLARE_AUTO_VAR_CLASS(AutoLessVar); DECLARE_AUTO_VAR_CLASS(AutoHatVar); DECLARE_AUTO_VAR_CLASS(AutoPlusVar); DECLARE_AUTO_VAR_CLASS(AutoStarVar); +DECLARE_AUTO_VAR_CLASS(AutoQuestionVar); DECLARE_AUTO_VAR_CLASS(AutoNotImplementedVar); class AutoSuffixDVar : public AutoVar { @@ -125,6 +127,18 @@ void AutoStarVar::Eval(Evaluator*, string* s) const { pat.Stem(n->output.str()).AppendToString(s); } +void AutoQuestionVar::Eval(Evaluator*, string* s) const { + unordered_set<StringPiece> seen; + WordWriter ww(s); + double target_age = GetTimestamp(ce_->current_dep_node()->output.str()); + for (Symbol ai : ce_->current_dep_node()->actual_inputs) { + if (seen.insert(ai.str()).second + && GetTimestamp(ai.str()) > target_age) { + ww.Write(ai.str()); + } + } +} + void AutoNotImplementedVar::Eval(Evaluator* ev, string*) const { ev->Error(StringPrintf("Automatic variable `$%s' isn't supported yet", sym_)); } @@ -179,9 +193,9 @@ CommandEvaluator::CommandEvaluator(Evaluator* ev) : ev_(ev) { INSERT_AUTO_VAR(AutoHatVar, "^"); INSERT_AUTO_VAR(AutoPlusVar, "+"); INSERT_AUTO_VAR(AutoStarVar, "*"); + INSERT_AUTO_VAR(AutoQuestionVar, "?"); // TODO: Implement them. INSERT_AUTO_VAR(AutoNotImplementedVar, "%"); - INSERT_AUTO_VAR(AutoNotImplementedVar, "?"); INSERT_AUTO_VAR(AutoNotImplementedVar, "|"); } |