Function NewTypedUnaryExpr

pkg/sql/sem/tree/expr.go:1239–1255

NewTypedUnaryExpr returns a new UnaryExpr that is well-typed.

(op UnaryOperator, expr TypedExpr, typ *types.T)

// NewTypedUnaryExpr returns a new UnaryExpr that is well-typed.
func NewTypedUnaryExpr(op UnaryOperator, expr TypedExpr, typ *types.T) *UnaryExpr {
	node := &UnaryExpr{Operator: op, Expr: expr}
	node.typ = typ
	innerType := expr.ResolvedType()

	_ = UnaryOps[op.Symbol].ForEachUnaryOp(func(o *UnaryOp) error {
		if innerType.Equivalent(o.Typ) && node.typ.Equivalent(o.ReturnType) {
			node.op = o
			return iterutil.StopIteration()
		}
		return nil
	})
	if node.op == nil {
		panic(errors.AssertionFailedf("invalid TypedExpr with unary op %d: %s", op.Symbol, expr))
	}
	return node
}

// FuncExpr represents a function call.
type FuncExpr struct {