add docs for fields

lib/metadata/builder.go

@@ -83,10 +83,10 @@ func (t *TypeDefinition) WithId(id uint32) *TypeDefinition {
 
 func (t *TypeDefinition) WithField(name string, typ string, docs ...*Docs) *TypeDefinition {
 	f := &Field{Name: name, Type: typ}
-	t.Fields = append(t.Fields, f)
 	if len(docs) > 0 && docs[0] != nil {
-		t.Docs = docs[0]
+		f.Docs = docs[0]
 	}
+	t.Fields = append(t.Fields, f)
 	return t
 }
 

runtime/graphql/schemagen/schemagen_as_test.go

@@ -229,9 +229,15 @@ Each field corresponds to a specific part of the address.
 The location field stores geospatial coordinates.
 """
 input AddressInput {
+  """
+  Street that the user lives on
+  """
   street: String!
   city: String!
   state: String!
+  """
+  Country that the user is from
+  """
   country: String!
   postalCode: String!
   location: CoordinatesInput!
@@ -276,9 +282,15 @@ Each field corresponds to a specific part of the address.
 The location field stores geospatial coordinates.
 """
 type Address {
+  """
+  Street that the user lives on
+  """
   street: String!
   city: String!
   state: String!
+  """
+  Country that the user is from
+  """
   country: String!
   postalCode: String!
   location: Coordinates!

runtime/graphql/schemagen/schemagen_go_test.go

@@ -263,9 +263,15 @@ Each field corresponds to a specific part of the address.
 The location field stores geospatial coordinates.
 """
 input AddressInput {
+  """
+  Street that the user lives on
+  """
   street: String!
   city: String!
   state: String!
+  """
+  Country that the user is from
+  """
   country: String!
   postalCode: String!
   location: CoordinatesInput!
@@ -310,9 +316,15 @@ Each field corresponds to a specific part of the address.
 The location field stores geospatial coordinates.
 """
 type Address {
+  """
+  Street that the user lives on
+  """
   street: String!
   city: String!
   state: String!
+  """
+  Country that the user is from
+  """
   country: String!
   postalCode: String!
   location: Coordinates!