Method markIfLive

source/python.js:6883–6895

(node)

                throw new python.Error('Not implemented.');
            }
            markIfLive(node) {
                for (const output of node.outputs()) {
                    if (this._liveValues.has(output)) {
                        return this.mark(node);
                    }
                }
                if (this._useAliasDb) {
                    if (this.getOrCreateAliasDb().writesToAlias(node, this._liveValues)) {
                        return this.mark(node);
                    }
                }
                return false;
            }
            sweep(block, recurse) {
                const nodes = Array.from(block.nodes()).reverse();
                for (const node of nodes) {