feat: migrate from bs.* to mel.* attributes

.github/workflows/nix.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ocamlVersion: [4_14, 5_0]
+        ocamlVersion: [5_1]
     steps:
     - uses: actions/checkout@v2
     - uses: cachix/install-nix-action@v21

.github/workflows/opam.yml

@@ -24,7 +24,7 @@ jobs:
           # disabling this for now
 
         ocaml-compiler:
-          - 4.14.x
+          - ocaml-variants.5.1.0+trunk
 
     runs-on: ${{ matrix.os }}
 

Makefile

@@ -46,13 +46,14 @@ format-check: ## Checks if format is correct
 
 .PHONY: install
 install: ## Update the package dependencies when new deps are added to dune-project
-	@opam pin add -y melange --dev-repo
+	@opam pin add -y melange.dev --dev-repo
+	@opam pin add -y reason.dev --dev-repo
 	@opam install . --deps-only --with-test
 	@npm install
 
 .PHONY: init
 create-switch: ## Create a local opam switch
-	@opam switch create . 4.14.1 --no-install
+	@opam switch create . 5.1.0~alpha2 --no-install
 
 .PHONY: init
 init: create-switch install ## Create a local opam switch, install deps

flake.nix

@@ -20,7 +20,7 @@
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages."${system}".appendOverlays [
-          (self: super: { ocamlPackages = super.ocaml-ng.ocamlPackages_4_14; })
+          (self: super: { ocamlPackages = super.ocaml-ng.ocamlPackages_5_1; })
           melange.overlays.default
         ];
       in

ppx/src/reactjs_jsx_ppx.ml

@@ -24,7 +24,7 @@ let constantString ~loc str =
 let safeTypeFromValue valueStr =
   let valueStr = getLabel valueStr in
   match String.sub valueStr 0 1 with "_" -> "T" ^ valueStr | _ -> valueStr
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 let keyType loc =
   Typ.constr ~loc { loc; txt = optionIdent }
@@ -84,11 +84,11 @@ let extractChildren ?(removeLastPositionUnit = false) propsAndChildren =
           (Invalid_argument
              "JSX: found non-labelled argument before the last position")
     | arg :: rest -> allButLast_ rest (arg :: acc)
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
   let allButLast lst =
     allButLast_ lst [] |> List.rev
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
   match
     List.partition
@@ -111,7 +111,7 @@ let extractChildren ?(removeLastPositionUnit = false) propsAndChildren =
   | _ ->
       raise
         (Invalid_argument "JSX: somehow there's more than one `children` label")
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 let unerasableIgnore loc =
   {
@@ -158,7 +158,7 @@ let getFnName binding =
   | { pvb_pat = { ppat_desc = Ppat_var { txt } } } -> txt
   | _ ->
       raise (Invalid_argument "react.component calls cannot be destructured.")
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 let makeNewBinding binding expression newName =
   match binding with
@@ -172,7 +172,7 @@ let makeNewBinding binding expression newName =
       }
   | _ ->
       raise (Invalid_argument "react.component calls cannot be destructured.")
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* Lookup the value of `props` otherwise raise Invalid_argument error *)
 let getPropsNameValue _acc (loc, exp) =
@@ -184,7 +184,7 @@ let getPropsNameValue _acc (loc, exp) =
         (Invalid_argument
            ("react.component only accepts props as an option, given: "
           ^ Longident.last_exn txt))
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* Lookup the `props` record or string as part of [@react.component] and store
    the name for use when rewriting *)
@@ -212,7 +212,7 @@ let getPropsAttr payload =
         (Invalid_argument
            "react.component accepts a record config with props as an options.")
   | _ -> defaultProps
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* Plucks the label, loc, and type_ from an AST node *)
 let pluckLabelDefaultLocType (label, default, _, _, loc, type_) =
@@ -309,7 +309,7 @@ let rec recursivelyMakeNamedArgsForExternal list args =
            | _label, Some type_, _ -> type_)
            args)
   | [] -> args
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* Build an AST node for the [@bs.obj] representing props for a component *)
 let makePropsValue fnName loc namedArgListWithKeyAndRef propsType =
@@ -330,14 +330,14 @@ let makePropsValue fnName loc namedArgListWithKeyAndRef propsType =
     pval_attributes =
       [
         {
-          attr_name = { txt = "bs.obj"; loc };
+          attr_name = { txt = "mel.obj"; loc };
           attr_payload = PStr [];
           attr_loc = loc;
         };
       ];
     pval_loc = loc;
   }
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* Build an AST node representing an `external` with the definition of the
    [@bs.obj] *)
@@ -348,7 +348,7 @@ let makePropsExternal fnName loc namedArgListWithKeyAndRef propsType =
       Pstr_primitive
         (makePropsValue fnName loc namedArgListWithKeyAndRef propsType);
   }
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* Build an AST node for the signature of the `external` definition *)
 let makePropsExternalSig fnName loc namedArgListWithKeyAndRef propsType =
@@ -357,7 +357,7 @@ let makePropsExternalSig fnName loc namedArgListWithKeyAndRef propsType =
     psig_desc =
       Psig_value (makePropsValue fnName loc namedArgListWithKeyAndRef propsType);
   }
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* Build an AST node for the props name when converted to an object inside the
    function signature *)
@@ -453,7 +453,7 @@ let makeExternalDecl fnName loc namedArgListWithKeyAndRef namedTypeList =
   makePropsExternal fnName loc
     (List.map pluckLabelDefaultLocType namedArgListWithKeyAndRef)
     (makePropsType ~loc namedTypeList)
-  [@@raises Invalid_argument]
+[@@raises Invalid_argument]
 
 (* TODO: some line number might still be wrong *)
 let jsxMapper =
@@ -481,7 +481,7 @@ let jsxMapper =
       let first = String.sub str 0 1 [@@raises Invalid_argument] in
       let capped = String.uppercase_ascii first in
       first = capped
-      [@@raises Invalid_argument]
+        [@@raises Invalid_argument]
     in
     let ident =
       match modulePath with
@@ -625,7 +625,7 @@ let jsxMapper =
           "react-jsx-ppx: react.component refs only support plain arguments \
            and type annotations."
     | _ -> (list, None)
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
 
   let argToType types (name, default, _noLabelName, _alias, loc, type_) =
@@ -685,7 +685,7 @@ let jsxMapper =
           } )
         :: types
     | _ -> types
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
 
   let argToConcreteType types (name, loc, type_) =
@@ -706,7 +706,7 @@ let jsxMapper =
         pstr_desc =
           Pstr_primitive
             ({ pval_name = { txt = fnName }; pval_attributes; pval_type } as
-            value_description);
+             value_description);
       } as pstr -> (
         match List.filter hasAttr pval_attributes with
         | [] -> structure :: returnStructures
@@ -806,7 +806,7 @@ let jsxMapper =
                          "react.component calls can only be on function \
                           definitions or component wrappers (forwardRef, \
                           memo).")
-                [@@raises Invalid_argument]
+                  [@@raises Invalid_argument]
               in
               spelunkForFunExpression expression
             in
@@ -1103,7 +1103,7 @@ let jsxMapper =
             in
             (Some externalDecl, bindings, newBinding)
           else (None, [ binding ], None)
-          [@@raises Invalid_argument]
+            [@@raises Invalid_argument]
         in
         let structuresAndBinding = List.map mapBinding valueBindings in
         let otherStructures (extern, binding, newBinding)
@@ -1136,12 +1136,12 @@ let jsxMapper =
               ])
         @ returnStructures
     | structure -> structure :: returnStructures
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
 
   let reactComponentTransform ~ctxt mapper structures =
     List.fold_right (transformComponentDefinition ~ctxt mapper) structures []
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
 
   let transformComponentSignature _mapper signature returnSignatures =
@@ -1151,7 +1151,7 @@ let jsxMapper =
         psig_desc =
           Psig_value
             ({ pval_name = { txt = fnName }; pval_attributes; pval_type } as
-            psig_desc);
+             psig_desc);
       } as psig -> (
         match List.filter hasAttr pval_attributes with
         | [] -> signature :: returnSignatures
@@ -1208,12 +1208,12 @@ let jsxMapper =
                  "Only one react.component call can exist on a component at \
                   one time"))
     | signature -> signature :: returnSignatures
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
 
   let reactComponentSignatureTransform mapper signatures =
     List.fold_right (transformComponentSignature mapper) signatures []
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
 
   let transformJsxCall ~ctxt parentExpLoc mapper callExpression callArguments
@@ -1253,7 +1253,7 @@ let jsxMapper =
           (Invalid_argument
              "JSX: `createElement` should be preceeded by a simple, direct \
               module name.")
-    [@@raises Invalid_argument]
+      [@@raises Invalid_argument]
   in
 
   object (self)