Function isLowerPrecedence

parser/unparser.go:495–499

isLowerPrecedence indicates whether the precedence of the input operator is lower precedence than the (possible) operation represented in the input Expr. If the expr is not a Call, the result is false.

(op string, expr ast.Expr)

//
// If the expr is not a Call, the result is false.
func isLowerPrecedence(op string, expr ast.Expr) bool {
	c := expr.AsCall()
	other := c.FunctionName()
	return operators.Precedence(op) < operators.Precedence(other)
}

// Indicates whether the expr is a complex operator, i.e., a call expression
// with 2 or more arguments.