proto2graphql/lib/utils.js

Converts schema definitions in Protocol Buffer to GraphQL

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.convertScalar = exports.isScalar = exports.fullTypeName = void 0;
var protobuf = require("protobufjs");
var graphql_1 = require("graphql");
var ScalarTypeMap = {
    double: graphql_1.GraphQLFloat,
    float: graphql_1.GraphQLFloat,
    int32: graphql_1.GraphQLInt,
    int64: graphql_1.GraphQLInt,
    uint32: graphql_1.GraphQLInt,
    uint64: graphql_1.GraphQLInt,
    sint32: graphql_1.GraphQLInt,
    sint64: graphql_1.GraphQLInt,
    fixed32: graphql_1.GraphQLInt,
    fixed64: graphql_1.GraphQLInt,
    sfixed32: graphql_1.GraphQLInt,
    sfixed64: graphql_1.GraphQLInt,
    bool: graphql_1.GraphQLBoolean,
    string: graphql_1.GraphQLString,
    bytes: graphql_1.GraphQLString
};
function fullTypeName(type) {
    if (type instanceof protobuf.MapField) {
        var keyType = convertScalar(type.keyType);
        var valueType = isScalar(type.type)
            ? convertScalar(type.type)
            : fullTypeName(type.resolvedType);
        return keyType + "_" + valueType + "_map";
    }
    return type.parent && type.parent.name
        ? fullTypeName(type.parent) + "_" + type.name
        : type.name;
}
exports.fullTypeName = fullTypeName;
function isScalar(type) {
    return type in ScalarTypeMap;
}
exports.isScalar = isScalar;
function convertScalar(type) {
    return ScalarTypeMap[type];
}
exports.convertScalar = convertScalar;
Array.prototype.flat = function () {
    return this.reduce(function (arr, flatting) {
        return arr.concat(Array.isArray(flatting) ? flatting.flat() : flatting);
    }, []);
};
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