@apollo/core-schema
Version:
Apollo Core Schema processing library
127 lines • 4.22 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.concat = exports.flat = exports.groupBy = exports.maybeOne = exports.maybe = exports.only = exports.first = exports.ErrTooMany = exports.ErrEmpty = void 0;
const recall_1 = __importStar(require("@protoplasm/recall"));
const error_1 = __importDefault(require("./error"));
const ErrEmpty = (iterable) => (0, error_1.default)('Empty', {
message: 'expected at least one value, found zero',
iterable
});
exports.ErrEmpty = ErrEmpty;
const ErrTooMany = (iterable) => (0, error_1.default)('TooMany', {
message: 'expected at most one value, found more',
iterable
});
exports.ErrTooMany = ErrTooMany;
function first(iter) {
if (!iter)
throw (0, exports.ErrEmpty)(iter);
const it = iter[Symbol.iterator]();
const r = it.next();
if (r.done)
throw (0, exports.ErrEmpty)(iter);
return r.value;
}
exports.first = first;
function only(iter) {
if (!iter)
throw (0, exports.ErrEmpty)(iter);
const it = iter[Symbol.iterator]();
const r = it.next();
if (r.done)
throw (0, exports.ErrEmpty)(iter);
try {
return r.value;
}
finally {
if (!it.next().done)
throw (0, exports.ErrTooMany)(iter);
}
}
exports.only = only;
function maybe(iter) {
if (!iter)
return undefined;
const it = iter[Symbol.iterator]();
const r = it.next();
return r.value;
}
exports.maybe = maybe;
function maybeOne(iter) {
if (!iter)
return;
const it = iter[Symbol.iterator]();
const r = it.next();
if (r.done)
return;
try {
return r.value;
}
finally {
if (!it.next().done)
throw (0, exports.ErrTooMany)(iter);
}
}
exports.maybeOne = maybeOne;
exports.groupBy = (0, recall_1.default)((grouper) => {
const groupSources = (0, recall_1.default)((...sources) => {
var _a;
if (sources.length === 0)
return Object.freeze(new Map);
if (sources.length > 1) {
const defs = new Map();
for (const src of sources)
for (const ent of groupSources(src))
defs.set(ent[0], Object.freeze(((_a = defs.get(ent[0])) !== null && _a !== void 0 ? _a : []).concat(ent[1])));
return Object.freeze(defs);
}
const [source] = sources;
const defs = new Map();
for (const def of source) {
const key = grouper(def);
const existing = defs.get(key);
if (existing)
existing.push(def);
else
defs.set(key, [def]);
}
for (const ary of defs.values()) {
Object.freeze(ary);
}
return Object.freeze(defs);
});
return groupSources;
});
exports.flat = (0, recall_1.replay)(function* flat(iters) {
for (const iter of iters)
yield* iter;
});
const concat = (...iters) => (0, exports.flat)(iters);
exports.concat = concat;
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