Function _QueryGraph_ExtractEdge

src/graph/query_graph.c:183–201

extracts edge from 'qg' and places a copy of into 'graph'

// extracts edge from 'qg' and places a copy of into 'graph'
static void _QueryGraph_ExtractEdge
(
	const QueryGraph *qg,
	QueryGraph *graph,
	QGNode *left,
	QGNode *right,
	const cypher_astnode_t *ast_edge
) {
	const char *alias = AST_ToString(ast_edge);

	// validate input, edge shouldn't be in graph
	ASSERT(left != NULL);
	ASSERT(right != NULL);
	ASSERT(QueryGraph_GetEdgeByAlias(graph, alias) == NULL);

	QGEdge *e = QueryGraph_GetEdgeByAlias(qg, alias);
	bool shortest_path = e ? e->shortest_path : false;
	_QueryGraphAddEdge(graph, ast_edge, left, right, shortest_path);
}

// clones path from 'qg' into 'graph'
static void _QueryGraph_ExtractPath