graphql-language-service-utils/esm/collectVariables.js

Utilities to support the GraphQL Language Service

import { typeFromAST, GraphQLFloat, Kind, } from 'graphql';
export function collectVariables(schema, documentAST) {
    const variableToType = Object.create(null);
    documentAST.definitions.forEach(definition => {
        if (definition.kind === 'OperationDefinition') {
            const variableDefinitions = definition.variableDefinitions;
            if (variableDefinitions) {
                variableDefinitions.forEach(({ variable, type }) => {
                    const inputType = typeFromAST(schema, type);
                    if (inputType) {
                        variableToType[variable.name.value] = inputType;
                    }
                    else if (type.kind === Kind.NAMED_TYPE) {
                        if (type.name.value === 'Float') {
                            variableToType[variable.name.value] = GraphQLFloat;
                        }
                    }
                });
            }
        }
    });
    return variableToType;
}
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