add dummy sampler as default sampler

findmyway · findmyway · commit 418c4e3709b1 · 2022-07-17T16:54:09.000+08:00
diff --git a/src/samplers.jl b/src/samplers.jl
@@ -2,6 +2,16 @@ using Random
 
 abstract type AbstractSampler end
 
+#####
+# DummySampler
+#####
+
+export DummySampler
+
+struct DummySampler end
+
+sample(s::DummySampler, t::AbstractTraces) = t
+
 #####
 # BatchSampler
 #####
diff --git a/src/trajectory.jl b/src/trajectory.jl
@@ -22,7 +22,7 @@ Supported methoes are:
 """
 Base.@kwdef struct Trajectory{C,S,T}
     container::C
-    sampler::S
+    sampler::S = DummySampler()
     controller::T = InsertSampleRatioController()
     transformer::Any = identity
 
