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// @flow strict
import { GraphQLError } from '../../error/GraphQLError';
import type { ASTVisitor } from '../../language/visitor';
import { Kind } from '../../language/kinds';
import { isExecutableDefinitionNode } from '../../language/predicates';
import type { ASTValidationContext } from '../ValidationContext';
/**
* Executable definitions
*
* A GraphQL document is only valid for execution if all definitions are either
* operation or fragment definitions.
*/
export function ExecutableDefinitionsRule(
context: ASTValidationContext,
): ASTVisitor {
return {
Document(node) {
for (const definition of node.definitions) {
if (!isExecutableDefinitionNode(definition)) {
const defName =
definition.kind === Kind.SCHEMA_DEFINITION ||
definition.kind === Kind.SCHEMA_EXTENSION
? 'schema'
: '"' + definition.name.value + '"';
context.reportError(
new GraphQLError(
`The ${defName} definition is not executable.`,
definition,
),
);
}
}
return false;
},
};
}
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