Function AST_Build

src/ast/ast.c:396–430

}

AST *AST_Build
(
	cypher_parse_result_t *parse_result
) {
	AST *ast = rm_malloc(sizeof(AST));

	ast->free_root           = false;
	ast->ref_count           = rm_malloc(sizeof(uint));
	ast->parse_result        = parse_result;
	ast->referenced_entities = NULL;
	ast->params_parse_result = NULL;
	ast->anot_ctx_collection = AST_AnnotationCtxCollection_New();

	*(ast->ref_count) = 1;

	// retrieve the AST root node from a parsed query
	const cypher_astnode_t *statement = _AST_parse_result_root(parse_result);

	// we are parsing with the CYPHER_PARSE_ONLY_STATEMENTS flag,
	// and double-checking this in AST validations
	ASSERT(cypher_astnode_type(statement) == CYPHER_AST_STATEMENT);
	ast->root = cypher_ast_statement_get_body(statement);

	// empty queries should be captured by AST validations
	ASSERT(ast->root);

	// set thread-local AST
	QueryCtx_SetAST(ast);

	// augment the AST with annotations for naming entities
	// and populating WITH/RETURN * projections
	AST_Enrich(ast);

	return ast;
}

AST *AST_NewSegment
(