Format spacing and indent in global and local lists (#54)

Closes #49.

src/chisels.jl

@@ -476,6 +476,13 @@ function is_variable_assignment(ctx, node::Node)
         !(ctx.lineage_kinds[end] in KSet"for generator cartesian_iterator filter")
 end
 
+# K"global" and K"local" nodes can be either `global a, b, c` or `global a = 1`. This method
+# checks whether the node is of the former kind.
+function is_global_local_list(node)
+    return kind(node) in KSet"global local" && !is_leaf(node) &&
+        all(x -> kind(x) in KSet"global local Identifier , Whitespace NewlineWs Comment", verified_kids(node))
+end
+
 function unwrap_to_call_or_tuple(x)
     is_leaf(x) && return nothing
     @assert !is_leaf(x)

src/runestone.jl

@@ -913,7 +913,8 @@ function no_spaces_around_x(ctx::Context, node::Node, is_x::F) where {F}
 end
 
 function spaces_in_export_public(ctx::Context, node::Node)
-    if !(kind(node) in KSet"export public" && !is_leaf(node))
+    is_leaf(node) && return nothing
+    if !(kind(node) in KSet"export public" || is_global_local_list(node))
         return nothing
     end
     kids = verified_kids(node)
@@ -923,7 +924,7 @@ function spaces_in_export_public(ctx::Context, node::Node)
 
     spacenode = Node(JuliaSyntax.SyntaxHead(K"Whitespace", JuliaSyntax.TRIVIA_FLAG), 1)
 
-    @assert is_leaf(kids[1]) && kind(kids[1]) in KSet"export public"
+    @assert is_leaf(kids[1]) && kind(kids[1]) in KSet"export public global local"
     accept_node!(ctx, kids[1])
 
     # space -> identifier -> comma
@@ -2753,7 +2754,7 @@ function continue_all_newlines(
 end
 
 function indent_using_import_export_public(ctx::Context, node::Node)
-    @assert kind(node) in KSet"using import export public"
+    @assert kind(node) in KSet"using import export public global local"
     return continue_all_newlines(ctx, node)
 end
 
@@ -3044,7 +3045,7 @@ function insert_delete_mark_newlines(ctx::Context, node::Node)
         return indent_braces(ctx, node)
     elseif kind(node) in KSet"|| &&"
         return indent_short_circuit(ctx, node)
-    elseif kind(node) in KSet"using import export public"
+    elseif kind(node) in KSet"using import export public" || is_global_local_list(node)
         return indent_using_import_export_public(ctx, node)
     elseif is_variable_assignment(ctx, node)
         return indent_assignment(ctx, node)

test/runtests.jl

@@ -784,9 +784,11 @@ end
             @test format_string("$(verb) A: a,\n$(sp)b") == "$(verb) A: a,\n    b"
             @test format_string("$(verb) A:\n$(sp)a,\n$(sp)b") == "$(verb) A:\n    a,\n    b"
         end
-        # export
+        # export/public/global/local
-        @test format_string("export a,\n$(sp)b") == "export a,\n    b"
+        for verb in ("export", "public", "global", "local")
-        @test format_string("export\n$(sp)a,\n$(sp)b") == "export\n    a,\n    b"
+            @test format_string("$(verb) a,\n$(sp)b") == "$(verb) a,\n    b"
+            @test format_string("$(verb)\n$(sp)a,\n$(sp)b") == "$(verb)\n    a,\n    b"
+        end
         # ternary
         @test format_string("a ?\n$(sp)b : c") == "a ?\n    b : c"
         @test format_string("a ? b :\n$(sp)c") == "a ? b :\n    c"
@@ -917,8 +919,13 @@ end
     @test format_string("import  A.@a  as  @b") == "import A.@a as @b"
 end
 
-@testset "spaces in export/public" begin
+@testset "spaces in export/public/global/local" begin
-    for sp in ("", " ", "  ", "\t"), verb in ("export", "public"), (a, b) in (("a", "@b"), ("@a", "b"))
+    for sp in ("", " ", "  ", "\t"), verb in ("export", "public", "global", "local"),
+            (a, b) in (("a", "b"), ("a", "@b"), ("@a", "b"))
+        if verb in ("global", "local") && (a, b) != ("a", "b")
+            # global and local only support K"Identifier"s right now
+            continue
+        end
         @test format_string("$(verb) $(sp)$(a)") == "$(verb) $(a)"
         @test format_string("$(verb)\n$(a)") == "$(verb)\n    $(a)"
         @test format_string("$(verb) $(sp)$(a)$(sp),$(sp)$(b)") == "$(verb) $(a), $(b)"
@@ -926,7 +933,7 @@ end
         @test format_string("$(verb) \n$(a)$(sp),\n$(b)") == "$(verb)\n    $(a),\n    $(b)"
         @test format_string("$(verb) $(a)$(sp),\n# b\n$(b)") == "$(verb) $(a),\n    # b\n    $(b)"
         # Inline comments
-        @test format_string("export a$(sp),$(sp)#= b, =#$(sp)c") == "export a, #= b, =# c"
+        @test format_string("$(verb) a$(sp),$(sp)#= b, =#$(sp)c") == "$(verb) a, #= b, =# c"
     end
     # Interpolated identifiers (currently only expected in K"quote" and K"macrocall")
     @test format_string(":(export \$a)") == ":(export \$a)"