flow like the river

VISUALIZACION/node_modules/graphql/validation/rules/ExecutableDefinitionsRule.mjs

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+import { GraphQLError } from "../../error/GraphQLError.mjs";
+import { Kind } from "../../language/kinds.mjs";
+import { isExecutableDefinitionNode } from "../../language/predicates.mjs";
+
+/**
+ * Executable definitions
+ *
+ * A GraphQL document is only valid for execution if all definitions are either
+ * operation or fragment definitions.
+ */
+export function ExecutableDefinitionsRule(context) {
+  return {
+    Document: function Document(node) {
+      for (var _i2 = 0, _node$definitions2 = node.definitions; _i2 < _node$definitions2.length; _i2++) {
+        var definition = _node$definitions2[_i2];
+
+        if (!isExecutableDefinitionNode(definition)) {
+          var defName = definition.kind === Kind.SCHEMA_DEFINITION || definition.kind === Kind.SCHEMA_EXTENSION ? 'schema' : '"' + definition.name.value + '"';
+          context.reportError(new GraphQLError("The ".concat(defName, " definition is not executable."), definition));
+        }
+      }
+
+      return false;
+    }
+  };
+}