fn fmt()

in src/ast/mod.rs [2854:2938]
82 lines of code
8 McCabe index (conditional complexity)

    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match self {
            Self::ParenthesizedAssignments { variables, values } => write!(
                f,
                "SET ({}) = ({})",
                display_comma_separated(variables),
                display_comma_separated(values)
            ),
            Self::MultipleAssignments { assignments } => {
                write!(f, "SET {}", display_comma_separated(assignments))
            }
            Self::SetRole {
                context_modifier,
                role_name,
            } => {
                let role_name = role_name.clone().unwrap_or_else(|| Ident::new("NONE"));
                write!(
                    f,
                    "SET {modifier}ROLE {role_name}",
                    modifier = context_modifier
                        .map(|m| format!("{}", m))
                        .unwrap_or_default()
                )
            }
            Self::SetSessionParam(kind) => write!(f, "SET {kind}"),
            Self::SetTransaction {
                modes,
                snapshot,
                session,
            } => {
                if *session {
                    write!(f, "SET SESSION CHARACTERISTICS AS TRANSACTION")?;
                } else {
                    write!(f, "SET TRANSACTION")?;
                }
                if !modes.is_empty() {
                    write!(f, " {}", display_comma_separated(modes))?;
                }
                if let Some(snapshot_id) = snapshot {
                    write!(f, " SNAPSHOT {snapshot_id}")?;
                }
                Ok(())
            }
            Self::SetTimeZone { local, value } => {
                f.write_str("SET ")?;
                if *local {
                    f.write_str("LOCAL ")?;
                }
                write!(f, "TIME ZONE {value}")
            }
            Self::SetNames {
                charset_name,
                collation_name,
            } => {
                write!(f, "SET NAMES {}", charset_name)?;

                if let Some(collation) = collation_name {
                    f.write_str(" COLLATE ")?;
                    f.write_str(collation)?;
                };

                Ok(())
            }
            Self::SetNamesDefault {} => {
                f.write_str("SET NAMES DEFAULT")?;

                Ok(())
            }
            Set::SingleAssignment {
                scope,
                hivevar,
                variable,
                values,
            } => {
                write!(
                    f,
                    "SET {}{}{} = {}",
                    scope.map(|s| format!("{}", s)).unwrap_or_default(),
                    if *hivevar { "HIVEVAR:" } else { "" },
                    variable,
                    display_comma_separated(values)
                )
            }
        }
    }