no constraints on numbers of features gdata for heterographs (#570)

Author: CarloLucibello

GNNGraphs/Project.toml

@@ -1,7 +1,7 @@
 name = "GNNGraphs"
 uuid = "aed8fd31-079b-4b5a-b342-a13352159b8c"
 authors = ["Carlo Lucibello and contributors"]
-version = "1.4.0"
+version = "1.4.1"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"

GNNGraphs/src/gnnheterograph/gnnheterograph.jl

@@ -144,7 +144,8 @@ function GNNHeteroGraph(data::EDict;
         ndata = normalize_heterographdata(ndata, default_name = :x, ns = num_nodes)
         edata = normalize_heterographdata(edata, default_name = :e, ns = num_edges,
                                           duplicate_if_needed = true)
-        gdata = normalize_graphdata(gdata, default_name = :u, n = num_graphs)
+        gdata = normalize_graphdata(gdata, default_name = :u,
+                                        n = num_graphs > 1 ? num_graphs : -1)
     end
 
     return GNNHeteroGraph(graph,

GNNGraphs/test/gnnheterograph.jl

@@ -31,9 +31,9 @@ end
     @test hg.ndata isa Dict{Symbol, DataStore}
     @test hg.edata isa Dict{Tuple{Symbol, Symbol, Symbol}, DataStore}
     @test isempty(hg.gdata)
+    @test hg.gdata._n == -1 # no constraints on gdata
     @test sort(hg.ntypes) == [:A, :B]
     @test sort(hg.etypes) == [(:A, :rel1, :B), (:B, :rel2, :A)]
-
 end
 
 @testset "features" begin