1 files changed, 134 insertions, 0 deletions
diff --git a/school/node_modules/graphql/validation/rules/KnownDirectivesRule.mjs b/school/node_modules/graphql/validation/rules/KnownDirectivesRule.mjs
new file mode 100644
index 0000000..8889bbb
--- /dev/null
+++ b/school/node_modules/graphql/validation/rules/KnownDirectivesRule.mjs
@@ -0,0 +1,134 @@
+import inspect from "../../jsutils/inspect.mjs";
+import invariant from "../../jsutils/invariant.mjs";
+import { GraphQLError } from "../../error/GraphQLError.mjs";
+import { Kind } from "../../language/kinds.mjs";
+import { DirectiveLocation } from "../../language/directiveLocation.mjs";
+import { specifiedDirectives } from "../../type/directives.mjs";
+
+/**
+ * Known directives
+ *
+ * A GraphQL document is only valid if all `@directives` are known by the
+ * schema and legally positioned.
+ */
+export function KnownDirectivesRule(context) {
+  var locationsMap = Object.create(null);
+  var schema = context.getSchema();
+  var definedDirectives = schema ? schema.getDirectives() : specifiedDirectives;
+
+  for (var _i2 = 0; _i2 < definedDirectives.length; _i2++) {
+    var directive = definedDirectives[_i2];
+    locationsMap[directive.name] = directive.locations;
+  }
+
+  var astDefinitions = context.getDocument().definitions;
+
+  for (var _i4 = 0; _i4 < astDefinitions.length; _i4++) {
+    var def = astDefinitions[_i4];
+
+    if (def.kind === Kind.DIRECTIVE_DEFINITION) {
+      locationsMap[def.name.value] = def.locations.map(function (name) {
+        return name.value;
+      });
+    }
+  }
+
+  return {
+    Directive: function Directive(node, _key, _parent, _path, ancestors) {
+      var name = node.name.value;
+      var locations = locationsMap[name];
+
+      if (!locations) {
+        context.reportError(new GraphQLError("Unknown directive \"@".concat(name, "\"."), node));
+        return;
+      }
+
+      var candidateLocation = getDirectiveLocationForASTPath(ancestors);
+
+      if (candidateLocation && locations.indexOf(candidateLocation) === -1) {
+        context.reportError(new GraphQLError("Directive \"@".concat(name, "\" may not be used on ").concat(candidateLocation, "."), node));
+      }
+    }
+  };
+}
+
+function getDirectiveLocationForASTPath(ancestors) {
+  var appliedTo = ancestors[ancestors.length - 1];
+  !Array.isArray(appliedTo) || invariant(0);
+
+  switch (appliedTo.kind) {
+    case Kind.OPERATION_DEFINITION:
+      return getDirectiveLocationForOperation(appliedTo.operation);
+
+    case Kind.FIELD:
+      return DirectiveLocation.FIELD;
+
+    case Kind.FRAGMENT_SPREAD:
+      return DirectiveLocation.FRAGMENT_SPREAD;
+
+    case Kind.INLINE_FRAGMENT:
+      return DirectiveLocation.INLINE_FRAGMENT;
+
+    case Kind.FRAGMENT_DEFINITION:
+      return DirectiveLocation.FRAGMENT_DEFINITION;
+
+    case Kind.VARIABLE_DEFINITION:
+      return DirectiveLocation.VARIABLE_DEFINITION;
+
+    case Kind.SCHEMA_DEFINITION:
+    case Kind.SCHEMA_EXTENSION:
+      return DirectiveLocation.SCHEMA;
+
+    case Kind.SCALAR_TYPE_DEFINITION:
+    case Kind.SCALAR_TYPE_EXTENSION:
+      return DirectiveLocation.SCALAR;
+
+    case Kind.OBJECT_TYPE_DEFINITION:
+    case Kind.OBJECT_TYPE_EXTENSION:
+      return DirectiveLocation.OBJECT;
+
+    case Kind.FIELD_DEFINITION:
+      return DirectiveLocation.FIELD_DEFINITION;
+
+    case Kind.INTERFACE_TYPE_DEFINITION:
+    case Kind.INTERFACE_TYPE_EXTENSION:
+      return DirectiveLocation.INTERFACE;
+
+    case Kind.UNION_TYPE_DEFINITION:
+    case Kind.UNION_TYPE_EXTENSION:
+      return DirectiveLocation.UNION;
+
+    case Kind.ENUM_TYPE_DEFINITION:
+    case Kind.ENUM_TYPE_EXTENSION:
+      return DirectiveLocation.ENUM;
+
+    case Kind.ENUM_VALUE_DEFINITION:
+      return DirectiveLocation.ENUM_VALUE;
+
+    case Kind.INPUT_OBJECT_TYPE_DEFINITION:
+    case Kind.INPUT_OBJECT_TYPE_EXTENSION:
+      return DirectiveLocation.INPUT_OBJECT;
+
+    case Kind.INPUT_VALUE_DEFINITION:
+      {
+        var parentNode = ancestors[ancestors.length - 3];
+        return parentNode.kind === Kind.INPUT_OBJECT_TYPE_DEFINITION ? DirectiveLocation.INPUT_FIELD_DEFINITION : DirectiveLocation.ARGUMENT_DEFINITION;
+      }
+  }
+}
+
+function getDirectiveLocationForOperation(operation) {
+  switch (operation) {
+    case 'query':
+      return DirectiveLocation.QUERY;
+
+    case 'mutation':
+      return DirectiveLocation.MUTATION;
+
+    case 'subscription':
+      return DirectiveLocation.SUBSCRIPTION;
+  } // istanbul ignore next (Not reachable. All possible types have been considered)
+
+
+  false || invariant(0, 'Unexpected operation: ' + inspect(operation));
+}