fix compat bug

.github/workflows/coverage.yml

@@ -51,9 +51,9 @@ jobs:
       - name: Setup .NET Core # Required to execute ReportGenerator
         uses: actions/setup-dotnet@v1
         with:
-              dotnet-version: 3.1.302
+          dotnet-version: 6.0.400
       - name: ReportGenerator
-        uses: danielpalme/ReportGenerator-GitHub-Action@4.6.4
+        uses: danielpalme/ReportGenerator-GitHub-Action@5.1.10
         with:
             reports: 'docs/coverage/lcov.info' # REQUIRED # The coverage reports that should be parsed (separated by semicolon). Globbing is supported.
             targetdir: 'docs/coverage' # REQUIRED # The directory where the generated report should be saved.

Project.toml

@@ -4,6 +4,7 @@ authors = ["김용희 <yongheekim@devsisters.com>"]
 version = "0.4.0"
 
 [deps]
+Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 OrderedCollections = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
 
 [compat]

src/JSONPointer.jl

@@ -1,5 +1,6 @@
 module JSONPointer
 
+using Compat
 using OrderedCollections
 
 include("pointer.jl")

src/pointerdict.jl

@@ -133,16 +133,18 @@ function Base.merge(pd::PointerDict, pds::PointerDict...)
     merge!(out, pds...)
 end
 
-Base.mergewith(combine, pd::PointerDict) = copy(pd)
-function Base.mergewith(combine, pd::PointerDict, pds::PointerDict...)
-    K = _promote_keytypes((pd, pds...))
-    V0 = _promote_valtypes(valtype(pd), pds...)
-    V = promote_type(Core.Compiler.return_type(combine, Tuple{V0,V0}), V0)
-    out = PointerDict(Dict{K,V}())
-    for (k,v) in pd
-        out[k] = v
+@static if VERSION >= v"1.5"
+    Base.mergewith(combine, pd::PointerDict) = copy(pd)
+    function Base.mergewith(combine, pd::PointerDict, pds::PointerDict...)
+        K = _promote_keytypes((pd, pds...))
+        V0 = _promote_valtypes(valtype(pd), pds...)
+        V = promote_type(Core.Compiler.return_type(combine, Tuple{V0,V0}), V0)
+        out = PointerDict(Dict{K,V}())
+        for (k,v) in pd
+            out[k] = v
+        end
+        mergewith!(combine, out, pds...)
     end
-    mergewith!(combine, out, pds...)
 end
 
 # fall back to String if we don't clearly have Symbol