1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.PossibleFragmentSpreadsRule = PossibleFragmentSpreadsRule;
var _inspect = _interopRequireDefault(require("../../jsutils/inspect.js"));
var _GraphQLError = require("../../error/GraphQLError.js");
var _definition = require("../../type/definition.js");
var _typeFromAST = require("../../utilities/typeFromAST.js");
var _typeComparators = require("../../utilities/typeComparators.js");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* Possible fragment spread
*
* A fragment spread is only valid if the type condition could ever possibly
* be true: if there is a non-empty intersection of the possible parent types,
* and possible types which pass the type condition.
*/
function PossibleFragmentSpreadsRule(context) {
return {
InlineFragment: function InlineFragment(node) {
var fragType = context.getType();
var parentType = context.getParentType();
if ((0, _definition.isCompositeType)(fragType) && (0, _definition.isCompositeType)(parentType) && !(0, _typeComparators.doTypesOverlap)(context.getSchema(), fragType, parentType)) {
var parentTypeStr = (0, _inspect.default)(parentType);
var fragTypeStr = (0, _inspect.default)(fragType);
context.reportError(new _GraphQLError.GraphQLError("Fragment cannot be spread here as objects of type \"".concat(parentTypeStr, "\" can never be of type \"").concat(fragTypeStr, "\"."), node));
}
},
FragmentSpread: function FragmentSpread(node) {
var fragName = node.name.value;
var fragType = getFragmentType(context, fragName);
var parentType = context.getParentType();
if (fragType && parentType && !(0, _typeComparators.doTypesOverlap)(context.getSchema(), fragType, parentType)) {
var parentTypeStr = (0, _inspect.default)(parentType);
var fragTypeStr = (0, _inspect.default)(fragType);
context.reportError(new _GraphQLError.GraphQLError("Fragment \"".concat(fragName, "\" cannot be spread here as objects of type \"").concat(parentTypeStr, "\" can never be of type \"").concat(fragTypeStr, "\"."), node));
}
}
};
}
function getFragmentType(context, name) {
var frag = context.getFragment(name);
if (frag) {
var type = (0, _typeFromAST.typeFromAST)(context.getSchema(), frag.typeCondition);
if ((0, _definition.isCompositeType)(type)) {
return type;
}
}
}
|
