fix(visitAllArgs): skip wrapping of fields of Introspection types

the field type was not sufficient, skip wrapping if the parent
field has introspection type

Author: tgerk

package.json

@@ -10,7 +10,10 @@
   "typescript": {
     "definition": "dist/index.d.ts"
   },
-  "repository": "https://github.com/tgerk/graphql-middleware-typed-arguments",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/tgerk/graphql-middleware-typed-arguments.git"
+  },
   "author": "Tim Gerk <[email protected]>, Matic Zavadlal <[email protected]>",
   "scripts": {
     "prepare": "npm run test",
@@ -22,7 +25,7 @@
     "pretty": "npx prettier --ignore-path .gitignore src{,/**}/{*.ts,*.js} --write"
   },
   "dependencies": {
-    "graphql-middleware": "1.7.8",
+    "graphql-middleware": "^2.0.2",
     "graphql-upload": "^8.0.1"
   },
   "devDependencies": {
@@ -45,10 +48,6 @@
     "branch": "master"
   },
   "homepage": "https://github.com/tgerk/graphql-middleware-typed-arguments",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/tgerk/graphql-middleware-typed-arguments.git"
-  },
   "bugs": {
     "url": "https://github.com/tgerk/graphql-middleware-typed-arguments/issues"
   },

src/index.ts

@@ -47,12 +47,6 @@ function getFieldArguments(info: GraphQLResolveInfo): GraphQLArgument[] {
   return typeFields[fieldName].args
 }
 
-function fieldHasIntrospectionType(info) {
-  const { fieldName, parentType } = info
-  const typeFields = parentType.getFields()
-  return isIntrospectionType(typeFields[fieldName].type)
-}
-
 /**
  *
  * @param type
@@ -220,8 +214,7 @@ export function processTypeArgs<V, T>({
 
 export function visitAllArgs({ transform }): IMiddlewareFunction {
   return (resolve, parent, args, ctx, info) => {
-    // TODO avoid introspection types--very fussy about introducing async into sync code
-    if (!fieldHasIntrospectionType(info)) {
+    if (!isIntrospectionType(info.parentType)) {
       const argDefs = getFieldArguments(info)
       if (argDefs.length) {
         // Apply argument transform function to all arguments