apollo-codegen-core/lib/compiler/visitors/collectFragmentsReferenced.js

Core generator APIs for Apollo Codegen

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.collectFragmentsReferenced = void 0;
function collectFragmentsReferenced(selectionSet, fragments, fragmentsReferenced = new Set()) {
    for (const selection of selectionSet.selections) {
        switch (selection.kind) {
            case "FragmentSpread":
                fragmentsReferenced.add(selection.fragmentName);
                const fragment = fragments[selection.fragmentName];
                if (!fragment) {
                    throw new Error(`Cannot find fragment "${selection.fragmentName}"`);
                }
                collectFragmentsReferenced(fragment.selectionSet, fragments, fragmentsReferenced);
                break;
            case "Field":
            case "TypeCondition":
            case "BooleanCondition":
                if (selection.selectionSet) {
                    collectFragmentsReferenced(selection.selectionSet, fragments, fragmentsReferenced);
                }
                break;
        }
    }
    return fragmentsReferenced;
}
exports.collectFragmentsReferenced = collectFragmentsReferenced;
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