fix #757 (#758)

Project.toml

@@ -1,7 +1,7 @@
 name = "JuliaFormatter"
 uuid = "98e50ef6-434e-11e9-1051-2b60c6c9e899"
 authors = ["Dominique Luna <[email protected]>"]
-version = "1.0.36"
+version = "1.0.37"
 
 [deps]
 CSTParser = "00ebfdb7-1f24-5e51-bd34-a7502290713f"

src/align.jl

@@ -202,6 +202,14 @@ function align_struct!(fst::FST)
 
             nlen = length(n[1])
             ind = findfirst(x -> x.typ === OPERATOR, n.nodes)
+            # issue 757
+            # "foo
+            # """
+            # a::B
+            #
+            # This is parsed as a concatenated string of "foo" and ""
+            ind === nothing && continue
+
             ws = n[ind].line_offset - (n.line_offset + nlen)
 
             push!(g, n, i, n[ind].line_offset, nlen, ws)
@@ -216,6 +224,7 @@ function align_struct!(fst::FST)
             binop = n[end]
             nlen += length(binop[1])
             ind = findfirst(x -> x.typ === OPERATOR, binop.nodes)
+            ind === nothing && continue
             ws = binop[ind].line_offset - (n.line_offset + nlen)
 
             push!(g, binop, i, binop[ind].line_offset, nlen, ws)

test/issues.jl

@@ -1727,4 +1727,15 @@
         """
         @test format_text(str_, SciMLStyle()) == str
     end
+
+    @testset "757" begin
+        str = """
+        struct Foo
+            \"foo
+            \"\"\"
+            foo::String
+        end
+        """
+        @test fmt(str, 4, 92, align_struct_field = true) == str
+    end
 end