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55 lines
1.6 KiB
55 lines
1.6 KiB
'use strict'; |
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Object.defineProperty(exports, '__esModule', { |
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value: true, |
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}); |
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exports.ScalarLeafsRule = ScalarLeafsRule; |
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var _inspect = require('../../jsutils/inspect.js'); |
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var _GraphQLError = require('../../error/GraphQLError.js'); |
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var _definition = require('../../type/definition.js'); |
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/** |
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* Scalar leafs |
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* |
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* A GraphQL document is valid only if all leaf fields (fields without |
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* sub selections) are of scalar or enum types. |
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*/ |
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function ScalarLeafsRule(context) { |
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return { |
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Field(node) { |
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const type = context.getType(); |
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const selectionSet = node.selectionSet; |
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if (type) { |
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if ((0, _definition.isLeafType)((0, _definition.getNamedType)(type))) { |
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if (selectionSet) { |
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const fieldName = node.name.value; |
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const typeStr = (0, _inspect.inspect)(type); |
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context.reportError( |
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new _GraphQLError.GraphQLError( |
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`Field "${fieldName}" must not have a selection since type "${typeStr}" has no subfields.`, |
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{ |
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nodes: selectionSet, |
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}, |
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), |
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); |
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} |
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} else if (!selectionSet) { |
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const fieldName = node.name.value; |
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const typeStr = (0, _inspect.inspect)(type); |
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context.reportError( |
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new _GraphQLError.GraphQLError( |
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`Field "${fieldName}" of type "${typeStr}" must have a selection of subfields. Did you mean "${fieldName} { ... }"?`, |
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{ |
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nodes: node, |
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}, |
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), |
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); |
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} |
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} |
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}, |
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}; |
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}
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