Function evalExpr

dialect/sql/sqlgraph/entql.go:161–169

evalExpr evaluates the entql expression and returns a new SQL predicate to be applied on the database.

(context *Node, selector *sql.Selector, expr entql.Expr)

// evalExpr evaluates the entql expression and returns a new SQL predicate to be applied on the database.
func evalExpr(context *Node, selector *sql.Selector, expr entql.Expr) (p *sql.Predicate, err error) {
	ex := &state{
		context:  context,
		selector: selector,
	}
	defer catch(&err)
	p = ex.evalExpr(expr)
	return
}

// evalExpr evaluates any expression.
func (e *state) evalExpr(expr entql.Expr) *sql.Predicate {