gatsby
Version:
Blazing fast modern site generator for React
45 lines (44 loc) • 1.69 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.resolvedNodesCacheReducer = void 0;
var _merge = _interopRequireDefault(require("lodash/merge"));
const resolvedNodesCacheReducer = (state = new Map(), action) => {
switch (action.type) {
case `DELETE_CACHE`:
case `CREATE_NODE`:
case `DELETE_NODE`:
return new Map();
case `SET_RESOLVED_NODES`:
{
const {
key,
nodes
} = action.payload;
const existingResolvedNodes = state.get(key);
if (existingResolvedNodes) {
// merge new resolved fields for given type with previously existing ones
for (const [nodeId, resolvedFields] of nodes.entries()) {
const previouslyResolvedNodeFields = existingResolvedNodes.get(nodeId);
if (previouslyResolvedNodeFields) {
// merge new resolved fields for given node id with previously existing ones
existingResolvedNodes.set(nodeId, (0, _merge.default)(previouslyResolvedNodeFields, resolvedFields));
} else {
// we didn't have any resolved fields for this node id, so we can just set new
// ones as-is
existingResolvedNodes.set(nodeId, resolvedFields);
}
}
} else {
// we didn't have resolved fields for this type yet, so
// we can just set it
state.set(key, nodes);
}
return state;
}
default:
return state;
}
};
exports.resolvedNodesCacheReducer = resolvedNodesCacheReducer;
//# sourceMappingURL=resolved-nodes.js.map