You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
2.6 KiB
95 lines
2.6 KiB
'use strict'; |
|
|
|
Object.defineProperty(exports, '__esModule', { |
|
value: true, |
|
}); |
|
exports.PossibleFragmentSpreadsRule = PossibleFragmentSpreadsRule; |
|
|
|
var _inspect = require('../../jsutils/inspect.js'); |
|
|
|
var _GraphQLError = require('../../error/GraphQLError.js'); |
|
|
|
var _definition = require('../../type/definition.js'); |
|
|
|
var _typeComparators = require('../../utilities/typeComparators.js'); |
|
|
|
var _typeFromAST = require('../../utilities/typeFromAST.js'); |
|
|
|
/** |
|
* 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(node) { |
|
const fragType = context.getType(); |
|
const parentType = context.getParentType(); |
|
|
|
if ( |
|
(0, _definition.isCompositeType)(fragType) && |
|
(0, _definition.isCompositeType)(parentType) && |
|
!(0, _typeComparators.doTypesOverlap)( |
|
context.getSchema(), |
|
fragType, |
|
parentType, |
|
) |
|
) { |
|
const parentTypeStr = (0, _inspect.inspect)(parentType); |
|
const fragTypeStr = (0, _inspect.inspect)(fragType); |
|
context.reportError( |
|
new _GraphQLError.GraphQLError( |
|
`Fragment cannot be spread here as objects of type "${parentTypeStr}" can never be of type "${fragTypeStr}".`, |
|
{ |
|
nodes: node, |
|
}, |
|
), |
|
); |
|
} |
|
}, |
|
|
|
FragmentSpread(node) { |
|
const fragName = node.name.value; |
|
const fragType = getFragmentType(context, fragName); |
|
const parentType = context.getParentType(); |
|
|
|
if ( |
|
fragType && |
|
parentType && |
|
!(0, _typeComparators.doTypesOverlap)( |
|
context.getSchema(), |
|
fragType, |
|
parentType, |
|
) |
|
) { |
|
const parentTypeStr = (0, _inspect.inspect)(parentType); |
|
const fragTypeStr = (0, _inspect.inspect)(fragType); |
|
context.reportError( |
|
new _GraphQLError.GraphQLError( |
|
`Fragment "${fragName}" cannot be spread here as objects of type "${parentTypeStr}" can never be of type "${fragTypeStr}".`, |
|
{ |
|
nodes: node, |
|
}, |
|
), |
|
); |
|
} |
|
}, |
|
}; |
|
} |
|
|
|
function getFragmentType(context, name) { |
|
const frag = context.getFragment(name); |
|
|
|
if (frag) { |
|
const type = (0, _typeFromAST.typeFromAST)( |
|
context.getSchema(), |
|
frag.typeCondition, |
|
); |
|
|
|
if ((0, _definition.isCompositeType)(type)) { |
|
return type; |
|
} |
|
} |
|
}
|
|
|