@apollo/client
Version:
A fully-featured caching GraphQL client.
140 lines (138 loc) • 5.82 kB
JavaScript
;;
const {
__DEV__
} = require("@apollo/client/utilities/environment");
Object.defineProperty(exports, "__esModule", { value: true });
exports.maskDefinition = maskDefinition;
const graphql_1 = require("graphql");
const environment_1 = require("@apollo/client/utilities/environment");
const internal_1 = require("@apollo/client/utilities/internal");
const invariant_1 = require("@apollo/client/utilities/invariant");
const utils_js_1 = require("./utils.cjs");
function maskDefinition(data, selectionSet, context) {
return utils_js_1.disableWarningsSlot.withValue(true, () => {
const masked = maskSelectionSet(data, selectionSet, context, false);
if (Object.isFrozen(data)) {
(0, internal_1.maybeDeepFreeze)(masked);
}
return masked;
});
}
function getMutableTarget(data, mutableTargets) {
if (mutableTargets.has(data)) {
return mutableTargets.get(data);
}
const mutableTarget = Array.isArray(data) ? [] : {};
mutableTargets.set(data, mutableTarget);
return mutableTarget;
}
function maskSelectionSet(data, selectionSet, context, migration, path) {
const { knownChanged } = context;
const memo = getMutableTarget(data, context.mutableTargets);
if (Array.isArray(data)) {
for (const [index, item] of Array.from(data.entries())) {
if (item === null) {
memo[index] = null;
continue;
}
const masked = maskSelectionSet(item, selectionSet, context, migration, environment_1.__DEV__ ? `${path || ""}[${index}]` : void 0);
if (knownChanged.has(masked)) {
knownChanged.add(memo);
}
memo[index] = masked;
}
return knownChanged.has(memo) ? memo : data;
}
for (const selection of selectionSet.selections) {
let value;
// we later want to add accessor warnings to the final result
// so we need a new object to add the accessor warning to
if (migration) {
knownChanged.add(memo);
}
if (selection.kind === graphql_1.Kind.FIELD) {
const keyName = (0, internal_1.resultKeyNameFromField)(selection);
const childSelectionSet = selection.selectionSet;
value = memo[keyName] || data[keyName];
if (value === void 0) {
continue;
}
if (childSelectionSet && value !== null) {
const masked = maskSelectionSet(data[keyName], childSelectionSet, context, migration, environment_1.__DEV__ ? `${path || ""}.${keyName}` : void 0);
if (knownChanged.has(masked)) {
value = masked;
}
}
if (!environment_1.__DEV__) {
memo[keyName] = value;
}
if (environment_1.__DEV__) {
if (migration &&
keyName !== "__typename" &&
// either the field is not present in the memo object
// or it has a `get` descriptor, not a `value` descriptor
// => it is a warning accessor and we can overwrite it
// with another accessor
!Object.getOwnPropertyDescriptor(memo, keyName)?.value) {
Object.defineProperty(memo, keyName, getAccessorWarningDescriptor(keyName, value, path || "", context.operationName, context.operationType));
}
else {
delete memo[keyName];
memo[keyName] = value;
}
}
}
if (selection.kind === graphql_1.Kind.INLINE_FRAGMENT &&
(!selection.typeCondition ||
context.cache.fragmentMatches(selection, data.__typename))) {
value = maskSelectionSet(data, selection.selectionSet, context, migration, path);
}
if (selection.kind === graphql_1.Kind.FRAGMENT_SPREAD) {
const fragmentName = selection.name.value;
const fragment = context.fragmentMap[fragmentName] ||
(context.fragmentMap[fragmentName] =
context.cache.lookupFragment(fragmentName));
(0, invariant_1.invariant)(fragment, 39, fragmentName);
const mode = (0, utils_js_1.getFragmentMaskMode)(selection);
if (mode !== "mask") {
value = maskSelectionSet(data, fragment.selectionSet, context, mode === "migrate", path);
}
}
if (knownChanged.has(value)) {
knownChanged.add(memo);
}
}
if ("__typename" in data && !("__typename" in memo)) {
memo.__typename = data.__typename;
}
// This check prevents cases where masked fields may accidentally be
// returned as part of this object when the fragment also selects
// additional fields from the same child selection.
if (Object.keys(memo).length !== Object.keys(data).length) {
knownChanged.add(memo);
}
return knownChanged.has(memo) ? memo : data;
}
function getAccessorWarningDescriptor(fieldName, value, path, operationName, operationType) {
let getValue = () => {
if (utils_js_1.disableWarningsSlot.getValue()) {
return value;
}
__DEV__ && invariant_1.invariant.warn(40, operationName ?
`${operationType} '${operationName}'`
: `anonymous ${operationType}`, `${path}.${fieldName}`.replace(/^\./, ""));
getValue = () => value;
return value;
};
return {
get() {
return getValue();
},
set(newValue) {
getValue = () => newValue;
},
enumerable: true,
configurable: true,
};
}
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