Marc Mintel
5397309103
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34 lines
1.0 KiB
Plaintext
34 lines
1.0 KiB
Plaintext
import { GraphQLError } from '../../error/GraphQLError.mjs';
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import { print } from '../../language/printer.mjs';
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import { isInputType } from '../../type/definition.mjs';
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import { typeFromAST } from '../../utilities/typeFromAST.mjs';
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/**
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* Variables are input types
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*
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* A GraphQL operation is only valid if all the variables it defines are of
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* input types (scalar, enum, or input object).
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*
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* See https://spec.graphql.org/draft/#sec-Variables-Are-Input-Types
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*/
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export function VariablesAreInputTypesRule(context) {
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return {
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VariableDefinition(node) {
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const type = typeFromAST(context.getSchema(), node.type);
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if (type !== undefined && !isInputType(type)) {
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const variableName = node.variable.name.value;
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const typeName = print(node.type);
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context.reportError(
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new GraphQLError(
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`Variable "$${variableName}" cannot be non-input type "${typeName}".`,
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{
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nodes: node.type,
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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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