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introduce rule cache (no need to figure out rlist every time)

master
Daniel Kolesa 2015-10-15 10:42:43 +02:00
parent 49812b6b40
commit 4028bdef7d
1 changed files with 15 additions and 2 deletions
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17
main.cc
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@ -4,6 +4,7 @@
#include <ostd/types.hh>
#include <ostd/string.hh>
#include <ostd/vector.hh>
#include <ostd/map.hh>
#include <ostd/atomic.hh>
#include <ostd/filesystem.hh>
#include <ostd/platform.hh>
@ -15,6 +16,7 @@
using ostd::ConstCharRange;
using ostd::Vector;
using ostd::Map;
using ostd::String;
using ostd::Uint32;
using ostd::slice_until;
@ -161,6 +163,8 @@ struct ObState {
Rule *rule;
};
Map<ConstCharRange, Vector<SubRule>> cache;
template<typename ...A>
int error(int retcode, ConstCharRange fmt, A &&...args) {
ostd::err.write(progname, ": ");
@ -242,8 +246,9 @@ struct ObState {
return 0;
}
int exec_rule(ConstCharRange target, ConstCharRange from = nullptr) {
Vector<SubRule> rlist;
int find_rules(ConstCharRange target, Vector<SubRule> &rlist) {
if (!rlist.empty())
return 0;
SubRule *frule = nullptr;
bool exact = false;
for (auto &rule: rules.iter()) {
@ -285,6 +290,14 @@ struct ObState {
}
}
}
return 0;
}
int exec_rule(ConstCharRange target, ConstCharRange from = nullptr) {
Vector<SubRule> &rlist = cache[target];
int fret = find_rules(target, rlist);
if (fret)
return fret;
if (rlist.empty() && !ob_check_file(target)) {
if (from.empty())
return error(1, "no rule to run target '%s'", target);