prints independent operation name

Author: vasilich6107

packages/graphql_codegen/lib/src/printer/base/operation.dart

@@ -11,6 +11,7 @@ List<Spec> printOperationSpecs(PrintContext<ContextOperation> elementContext) {
   final context = elementContext.context;
   final operation = context.operation;
   final clients = context.config.clients;
+
   return [
     if (context.hasVariables) ...printVariableClasses(elementContext),
     printContext(elementContext),

packages/graphql_codegen/lib/src/printer/clients/graphql.dart

@@ -68,6 +68,7 @@ Spec printQueryOptions(PrintContext<ContextOperation> c) {
             )
             ..modifier = FieldModifier.final$,
         ),
+        _printOperationNameDefinitionField(c),
       ])
       ..methods = ListBuilder([
         Method(
@@ -200,12 +201,24 @@ Spec printQueryOptions(PrintContext<ContextOperation> c) {
 }
 
 Expression _printOperationName(PrintContext<ContextOperation> c) {
-  final operationName = c.context.operation?.name?.value;
-  if (!c.context.config.setOperationName || operationName == null) {
-    return refer('operationName');
-  }
   return refer('operationName').ifNullThen(
-    literalString(operationName),
+    CodeExpression(Code('operationNameDefinition')),
+  );
+}
+
+Field _printOperationNameDefinitionField(PrintContext<ContextOperation> c) {
+  final operationName = c.context.operation?.name?.value;
+
+  return Field(
+    (b) => b
+      ..static = true
+      ..modifier = FieldModifier.constant
+      ..type = Reference('String?')
+      ..name = 'operationNameDefinition'
+      ..assignment =
+          (!c.context.config.setOperationName || operationName == null)
+              ? null
+              : Code('"$operationName"'),
   );
 }
 
@@ -218,6 +231,9 @@ Spec printSubscriptionOptions(PrintContext<ContextOperation> c) {
         "graphql.SubscriptionOptions",
         refer(c.namePrinter.printClassName(context.path)),
       )
+      ..fields = ListBuilder([
+        _printOperationNameDefinitionField(c),
+      ])
       ..constructors = ListBuilder([
         Constructor(
           (b) => b
@@ -447,6 +463,14 @@ Spec printMutationOptions(
             )
             ..modifier = FieldModifier.final$,
         ),
+        Field(
+          (b) => b
+            ..static = true
+            ..modifier = FieldModifier.constant
+            ..type = Reference('String')
+            ..name = 'operationNameDefinition'
+            ..assignment = Code('"${c.context.operation?.name?.value}"'),
+        ),
       ])
       ..methods = ListBuilder([
         Method(
@@ -594,6 +618,9 @@ Spec printWatchOptions(
       ..extend = TypeReference((b) => b
         ..symbol = "graphql.WatchQueryOptions"
         ..types = ListBuilder([refer(c.namePrinter.printClassName(c.path))]))
+      ..fields = ListBuilder([
+        _printOperationNameDefinitionField(c),
+      ])
       ..constructors = ListBuilder([
         Constructor(
           (b) => b

packages/graphql_codegen/lib/src/printer/utils.dart

@@ -126,6 +126,9 @@ class NamePrinter {
   String printGraphQLFlutterClientOperationName(Name name) =>
       "${printName(name)}${separator}Widget";
 
+  String printOperationNameDefinition(Name name) =>
+      "operationName${printName(name)}";
+
   String printGraphQLFlutterClientMutationHookResultName(Name name) =>
       "${printName(name)}${separator}HookResult";
 

packages/graphql_codegen/test/assets/issue_191/mutation.graphql.dart

@@ -164,7 +164,7 @@ class Options$Mutation$M extends graphql.MutationOptions<Mutation$M> {
     graphql.OnError? onError,
   })  : onCompletedWithParsed = onCompleted,
         super(
-          operationName: operationName ?? 'M',
+          operationName: operationName ?? operationNameDefinition,
           fetchPolicy: fetchPolicy,
           errorPolicy: errorPolicy,
           cacheRereadPolicy: cacheRereadPolicy,
@@ -184,6 +184,8 @@ class Options$Mutation$M extends graphql.MutationOptions<Mutation$M> {
 
   final OnMutationCompleted$Mutation$M? onCompletedWithParsed;
 
+  static const String operationNameDefinition = "M";
+
   @override
   List<Object?> get properties => [
         ...super.onCompleted == null
@@ -207,7 +209,7 @@ class WatchOptions$Mutation$M extends graphql.WatchQueryOptions<Mutation$M> {
     bool carryForwardDataOnException = true,
     bool fetchResults = false,
   }) : super(
-          operationName: operationName ?? 'M',
+          operationName: operationName ?? operationNameDefinition,
           fetchPolicy: fetchPolicy,
           errorPolicy: errorPolicy,
           cacheRereadPolicy: cacheRereadPolicy,
@@ -220,6 +222,8 @@ class WatchOptions$Mutation$M extends graphql.WatchQueryOptions<Mutation$M> {
           fetchResults: fetchResults,
           parserFn: _parserFn$Mutation$M,
         );
+
+  static const String? operationNameDefinition = "M";
 }
 
 extension ClientExtension$Mutation$M on graphql.GraphQLClient {

packages/graphql_codegen/test/assets/issue_191/query.graphql.dart

@@ -163,7 +163,7 @@ class Options$Query$Q extends graphql.QueryOptions<Query$Q> {
     graphql.OnQueryError? onError,
   })  : onCompleteWithParsed = onComplete,
         super(
-          operationName: operationName ?? 'Q',
+          operationName: operationName ?? operationNameDefinition,
           fetchPolicy: fetchPolicy,
           errorPolicy: errorPolicy,
           cacheRereadPolicy: cacheRereadPolicy,
@@ -183,6 +183,8 @@ class Options$Query$Q extends graphql.QueryOptions<Query$Q> {
 
   final OnQueryComplete$Query$Q? onCompleteWithParsed;
 
+  static const String? operationNameDefinition = "Q";
+
   @override
   List<Object?> get properties => [
         ...super.onComplete == null
@@ -206,7 +208,7 @@ class WatchOptions$Query$Q extends graphql.WatchQueryOptions<Query$Q> {
     bool carryForwardDataOnException = true,
     bool fetchResults = false,
   }) : super(
-          operationName: operationName ?? 'Q',
+          operationName: operationName ?? operationNameDefinition,
           fetchPolicy: fetchPolicy,
           errorPolicy: errorPolicy,
           cacheRereadPolicy: cacheRereadPolicy,
@@ -219,6 +221,8 @@ class WatchOptions$Query$Q extends graphql.WatchQueryOptions<Query$Q> {
           fetchResults: fetchResults,
           parserFn: _parserFn$Query$Q,
         );
+
+  static const String? operationNameDefinition = "Q";
 }
 
 class FetchMoreOptions$Query$Q extends graphql.FetchMoreOptions {

packages/graphql_codegen/test/assets/issue_191/subscription.graphql.dart

@@ -161,7 +161,7 @@ class Options$Subscription$S
     Subscription$S? typedOptimisticResult,
     graphql.Context? context,
   }) : super(
-          operationName: operationName ?? 'S',
+          operationName: operationName ?? operationNameDefinition,
           fetchPolicy: fetchPolicy,
           errorPolicy: errorPolicy,
           cacheRereadPolicy: cacheRereadPolicy,
@@ -170,6 +170,8 @@ class Options$Subscription$S
           document: documentNodeSubscriptionS,
           parserFn: _parserFn$Subscription$S,
         );
+
+  static const String? operationNameDefinition = "S";
 }
 
 class WatchOptions$Subscription$S
@@ -187,7 +189,7 @@ class WatchOptions$Subscription$S
     bool carryForwardDataOnException = true,
     bool fetchResults = false,
   }) : super(
-          operationName: operationName ?? 'S',
+          operationName: operationName ?? operationNameDefinition,
           fetchPolicy: fetchPolicy,
           errorPolicy: errorPolicy,
           cacheRereadPolicy: cacheRereadPolicy,
@@ -200,6 +202,8 @@ class WatchOptions$Subscription$S
           fetchResults: fetchResults,
           parserFn: _parserFn$Subscription$S,
         );
+
+  static const String? operationNameDefinition = "S";
 }
 
 class FetchMoreOptions$Subscription$S extends graphql.FetchMoreOptions {