Rename NoTimerOutput -> NullTimer

README.md

@@ -356,9 +356,9 @@ By default, debug timings are disabled, and this conditional should be optimized
 If a user calls `TimerOutputs.enable_debug_timings(<module>)`, the `<module>.timeit_debug_enabled()` method will be redefined, causing all dependent methods to be recompiled within that module.
 This may take a while, and hence is intended only for debugging usage, however all calls to `@timeit_debug` (within that Module) will thereafter be enabled.
 
-As an alternative to `@timeit_debug`, this package also provides a `NoTimerOutput` type that allows disabling all timings with zero overhead.
+As an alternative to `@timeit_debug`, this package also provides a `NullTimer` type that allows disabling all timings with zero overhead.
 This type represents a dummy timer which acts as a drop-in replacement for regular `TimerOutput`s.
-From a user's perspective, it suffices to replace `to = TimerOutput()` by `to = NoTimerOutput()` at the beginning of their code to fully disable timers.
+From a user's perspective, it suffices to replace `to = TimerOutput()` by `to = NullTimer()` at the beginning of their code to fully disable timers.
 
 ## Author
 

src/NullTimer.jl

@@ -0,0 +1,30 @@
+struct NullTimer <: AbstractTimerOutput
+    name::String
+    NullTimer(label::String = "root") = new(label)
+end
+
+isdummy(::NullTimer) = true
+
+Base.copy(to::NullTimer) = NullTimer(to.name)
+
+# Add definitions for exported methods
+reset_timer!(to::NullTimer) = to
+timeit(f::Function, ::NullTimer, ::String) = f()
+enable_timer!(::NullTimer) = true
+disable_timer!(::NullTimer) = false
+flatten(to::NullTimer) = to
+
+ncalls(::NullTimer) = 0
+time(::NullTimer) = 0
+allocated(::NullTimer) = 0
+tottime(::NullTimer) = 0
+totallocated(::NullTimer) = 0
+
+complement!(to::NullTimer) = to
+
+Base.haskey(::NullTimer, ::String) = false
+Base.getindex(::NullTimer, key::String) = throw(KeyError(key))
+
+function Base.show(io::IO, to::NullTimer)
+    print(io, "Timer \"", to.name, "\" is a dummy timer")
+end

src/TimerOutputs.jl

@@ -3,7 +3,7 @@ module TimerOutputs
 import Base: show, time_ns
 export TimerOutput, @timeit, @timeit_debug, reset_timer!, print_timer, timeit,
                     enable_timer!, disable_timer!, @notimeit
-export AbtractTimerOutput, NoTimerOutput
+export AbtractTimerOutput, NullTimer
 
 # https://github.com/JuliaLang/julia/pull/33717
 if VERSION < v"1.4.0-DEV.475"
@@ -20,7 +20,7 @@ using Printf
 
 
 include("TimerOutput.jl")
-include("NoTimerOutput.jl")
+include("NullTimer.jl")
 include("show.jl")
 include("utilities.jl")
 

test/runtests.jl

@@ -462,7 +462,7 @@ end
 
 @testset "dummy timers" begin
     to = TimerOutput()
-    nt = NoTimerOutput()
+    nt = NullTimer()
 
     @test repr(nt) == "Timer \"root\" is a dummy timer"