Small change to struct desugaring

mlechu · aviatesk · commit 698ee8bfc95f · 2025-06-15T03:37:31.000+09:00
Part of JuliaLang/julia#56497. `insert-struct-shim` (for the a self-reference case) is omitted for now.
diff --git a/src/desugaring.jl b/src/desugaring.jl
@@ -3961,16 +3961,17 @@ function expand_struct_def(ctx, ex, docs)
                                 ]
                             end
                         ]
-                        # Otherwise do an assignment to trigger an error
-                        [K"const" global_struct_name struct_name]
                     ]
-                    [K"const" global_struct_name struct_name]
                 ]
                 [K"call"(type_body)
                     "_typebody!"::K"core"
                     struct_name
                     [K"call" "svec"::K"core" field_types...]
                 ]
+                [K"const"
+                    global_struct_name
+                    newtype_var
+                 ]
                 # Default constructors
                 if isempty(inner_defs)
                     default_inner_constructors(ctx, ex, global_struct_name,

Original file line number	Diff line number	Diff line change
`@@ -3961,16 +3961,17 @@ function expand_struct_def(ctx, ex, docs)`
`3961`	`3961`	`]`
`3962`	`3962`	`end`
`3963`	`3963`	`]`
`3964`		`- # Otherwise do an assignment to trigger an error`
`3965`		`- [K"const" global_struct_name struct_name]`
`3966`	`3964`	`]`
`3967`		`- [K"const" global_struct_name struct_name]`
`3968`	`3965`	`]`
`3969`	`3966`	`[K"call"(type_body)`
`3970`	`3967`	`"_typebody!"::K"core"`
`3971`	`3968`	`struct_name`
`3972`	`3969`	`[K"call" "svec"::K"core" field_types...]`
`3973`	`3970`	`]`
	`3971`	`+ [K"const"`
	`3972`	`+ global_struct_name`
	`3973`	`+ newtype_var`
	`3974`	`+ ]`
`3974`	`3975`	`# Default constructors`
`3975`	`3976`	`if isempty(inner_defs)`
`3976`	`3977`	`default_inner_constructors(ctx, ex, global_struct_name,`