Support anonymous functions (#102)

Closes #80

Also makes a few CI fixes (custom Revise tests)

Author: timholy

.github/workflows/ci.yml

@@ -48,11 +48,15 @@ jobs:
           TERM="xterm" julia --project -i --code-coverage -e '
             using InteractiveUtils, REPL, Revise, Pkg
             Pkg.add("ColorTypes")
-            # @async(Base.run_main_repl(true, true, false, true, false))
+            @async(Base.run_main_repl(true, true, false, true, false))
             sleep(2)
             cd("test")
             include("runtests.jl")
-            REPL.eval_user_input(:(exit()), Base.active_repl_backend)
+            if Base.VERSION.major == 1 && Base.VERSION.minor >= 9
+                REPL.eval_user_input(:(exit()), Base.active_repl_backend, Main)
+            else
+                REPL.eval_user_input(:(exit()), Base.active_repl_backend)
+            end
           '
       - uses: julia-actions/julia-processcoverage@latest
       - uses: codecov/codecov-action@v3

src/utils.jl

@@ -20,6 +20,7 @@ checkname(fname::Symbol, name::Symbol) = begin
     fname === name && return true
     startswith(string(name), string('#', fname, '#')) && return true
     string(name) == string(fname, "##kw") && return true
+    match(r"^#\d+$", string(name)) !== nothing && return true  # support `f = x -> 2x`
     return false
 end
 checkname(fname::Symbol, ::Nothing) = true

test/runtests.jl

@@ -163,6 +163,12 @@ isdefined(Main, :Revise) ? Main.Revise.includet("script.jl") : include("script.j
     eval(ex)
     @test code_string(f_no_linenum, (Int,)) === nothing
 
+    # Issue #80
+    m = only(methods(f80))
+    src, line = definition(String, m)
+    @test occursin("x^3", src)
+    @test line == 52
+
     # Invalidation-insulating methods used by Revise and perhaps others
     d = IdDict{Union{String,Symbol},Union{Function,Vector{Function}}}()
     CodeTracking.invoked_setindex!(d, sin, "sin")
@@ -286,7 +292,7 @@ struct Functor end
     @test body == "(::Functor)(x, y) = x+y"
 end
 
-if v"1.6" <= VERSION < v"1.9"
+if v"1.6" <= VERSION < v"1.9-beta"
 @testset "kwfuncs" begin
     body, _ = CodeTracking.definition(String, @which fkw(; x=1))
     @test body == """

test/script.jl

@@ -47,3 +47,6 @@ end
 function fkw(; x=1)
     x
 end
+
+# Issue #80
+f80 = x -> 2 * x^3 + 1