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Diffstat (limited to 'desire.go')
-rw-r--r--desire.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/desire.go b/desire.go
index 15e714b..249c59a 100644
--- a/desire.go
+++ b/desire.go
@@ -34,6 +34,10 @@ func (d *Desire) RegisterSolver(c ChalType, s Solver) {
d.solver[c] = s
}
+func (d *Desire) HasSolver() bool {
+ return len(d.solver) != 0
+}
+
func backup(fname string) error {
err := os.Rename(fname, fname+".bak")
if err != nil && err.(*os.LinkError).Err == syscall.ENOENT {