Function _Validate_LIMIT_SKIP_Modifiers

src/ast/ast_validations.c:961–987

validate limit and skip modifiers

// validate limit and skip modifiers
static AST_Validation _Validate_LIMIT_SKIP_Modifiers
(
	const cypher_astnode_t *limit,  // limit ast-node
	const cypher_astnode_t *skip    // skip ast-node
) {
	if(limit) {
		// Handle non-integer or non parameter types specified as LIMIT value
		// The value validation of integer node or parameter node is done in run time evaluation.
		if(cypher_astnode_type(limit) != CYPHER_AST_INTEGER &&
			cypher_astnode_type(limit) != CYPHER_AST_PARAMETER) {
			ErrorCtx_SetError("LIMIT specified value of invalid type, must be a positive integer");
			return AST_INVALID;
		}
	}

	if(skip) {
		// Handle non-integer or non parameter types specified as skip value
		// The value validation of integer node or parameter node is done in run time evaluation.
		if(cypher_astnode_type(skip) != CYPHER_AST_INTEGER &&
			cypher_astnode_type(skip) != CYPHER_AST_PARAMETER) {
			ErrorCtx_SetError("SKIP specified value of invalid type, must be a positive integer");
			return AST_INVALID;
		}
	}

	return AST_VALID;
}

// validate UNION clauses
static AST_Validation _ValidateUnion_Clauses