Enum aws_sdk_ec2::model::PermissionGroup

#[non_exhaustive]
pub enum PermissionGroup {
    All,
    Unknown(UnknownVariantValue),
}

When writing a match expression against PermissionGroup, it is important to ensure your code is forward-compatible. That is, if a match arm handles a case for a feature that is supported by the service but has not been represented as an enum variant in a current version of SDK, your code should continue to work when you upgrade SDK to a future version in which the enum does include a variant for that feature.

Here is an example of how you can make a match expression forward-compatible:

# let permissiongroup = unimplemented!();
match permissiongroup {
    PermissionGroup::All => { /* ... */ },
    other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
    _ => { /* ... */ },
}

The above code demonstrates that when permissiongroup represents NewFeature, the execution path will lead to the second last match arm, even though the enum does not contain a variant PermissionGroup::NewFeature in the current version of SDK. The reason is that the variable other, created by the @ operator, is bound to PermissionGroup::Unknown(UnknownVariantValue("NewFeature".to_owned())) and calling as_str on it yields "NewFeature". This match expression is forward-compatible when executed with a newer version of SDK where the variant PermissionGroup::NewFeature is defined. Specifically, when permissiongroup represents NewFeature, the execution path will hit the second last match arm as before by virtue of calling as_str on PermissionGroup::NewFeature also yielding "NewFeature".

Explicitly matching on the Unknown variant should be avoided for two reasons:

• The inner data UnknownVariantValue is opaque, and no further information can be extracted.
• It might inadvertently shadow other intended match arms.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

All

Unknown(UnknownVariantValue)

Unknown contains new variants that have been added since this code was generated.

Implementations

impl PermissionGroup

pub fn as_str(&self) -> &str

Returns the &str value of the enum member.

Examples found in repository

src/model.rs (line 43008)

    fn as_ref(&self) -> &str {
        self.as_str()
    }

src/query_ser.rs (line 5038)

pub fn serialize_structure_crate_model_load_permission_request(
    mut writer: aws_smithy_query::QueryValueWriter,
    input: &crate::model::LoadPermissionRequest,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    #[allow(unused_mut)]
    let mut scope_1409 = writer.prefix("Group");
    if let Some(var_1410) = &input.group {
        scope_1409.string(var_1410.as_str());
    }
    #[allow(unused_mut)]
    let mut scope_1411 = writer.prefix("UserId");
    if let Some(var_1412) = &input.user_id {
        scope_1411.string(var_1412);
    }
    Ok(())
}

#[allow(unused_mut)]
pub fn serialize_structure_crate_model_launch_permission(
    mut writer: aws_smithy_query::QueryValueWriter,
    input: &crate::model::LaunchPermission,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    #[allow(unused_mut)]
    let mut scope_1413 = writer.prefix("Group");
    if let Some(var_1414) = &input.group {
        scope_1413.string(var_1414.as_str());
    }
    #[allow(unused_mut)]
    let mut scope_1415 = writer.prefix("UserId");
    if let Some(var_1416) = &input.user_id {
        scope_1415.string(var_1416);
    }
    #[allow(unused_mut)]
    let mut scope_1417 = writer.prefix("OrganizationArn");
    if let Some(var_1418) = &input.organization_arn {
        scope_1417.string(var_1418);
    }
    #[allow(unused_mut)]
    let mut scope_1419 = writer.prefix("OrganizationalUnitArn");
    if let Some(var_1420) = &input.organizational_unit_arn {
        scope_1419.string(var_1420);
    }
    Ok(())
}

#[allow(unused_mut)]
pub fn serialize_structure_crate_model_ebs_instance_block_device_specification(
    mut writer: aws_smithy_query::QueryValueWriter,
    input: &crate::model::EbsInstanceBlockDeviceSpecification,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    #[allow(unused_mut)]
    let mut scope_1421 = writer.prefix("DeleteOnTermination");
    if let Some(var_1422) = &input.delete_on_termination {
        scope_1421.boolean(*var_1422);
    }
    #[allow(unused_mut)]
    let mut scope_1423 = writer.prefix("VolumeId");
    if let Some(var_1424) = &input.volume_id {
        scope_1423.string(var_1424);
    }
    Ok(())
}

#[allow(unused_mut)]
pub fn serialize_structure_crate_model_capacity_reservation_target(
    mut writer: aws_smithy_query::QueryValueWriter,
    input: &crate::model::CapacityReservationTarget,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    #[allow(unused_mut)]
    let mut scope_1425 = writer.prefix("CapacityReservationId");
    if let Some(var_1426) = &input.capacity_reservation_id {
        scope_1425.string(var_1426);
    }
    #[allow(unused_mut)]
    let mut scope_1427 = writer.prefix("CapacityReservationResourceGroupArn");
    if let Some(var_1428) = &input.capacity_reservation_resource_group_arn {
        scope_1427.string(var_1428);
    }
    Ok(())
}

#[allow(unused_mut)]
pub fn serialize_structure_crate_model_security_group_rule_request(
    mut writer: aws_smithy_query::QueryValueWriter,
    input: &crate::model::SecurityGroupRuleRequest,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    #[allow(unused_mut)]
    let mut scope_1429 = writer.prefix("IpProtocol");
    if let Some(var_1430) = &input.ip_protocol {
        scope_1429.string(var_1430);
    }
    #[allow(unused_mut)]
    let mut scope_1431 = writer.prefix("FromPort");
    if let Some(var_1432) = &input.from_port {
        scope_1431.number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_1432).into()),
        );
    }
    #[allow(unused_mut)]
    let mut scope_1433 = writer.prefix("ToPort");
    if let Some(var_1434) = &input.to_port {
        scope_1433.number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_1434).into()),
        );
    }
    #[allow(unused_mut)]
    let mut scope_1435 = writer.prefix("CidrIpv4");
    if let Some(var_1436) = &input.cidr_ipv4 {
        scope_1435.string(var_1436);
    }
    #[allow(unused_mut)]
    let mut scope_1437 = writer.prefix("CidrIpv6");
    if let Some(var_1438) = &input.cidr_ipv6 {
        scope_1437.string(var_1438);
    }
    #[allow(unused_mut)]
    let mut scope_1439 = writer.prefix("PrefixListId");
    if let Some(var_1440) = &input.prefix_list_id {
        scope_1439.string(var_1440);
    }
    #[allow(unused_mut)]
    let mut scope_1441 = writer.prefix("ReferencedGroupId");
    if let Some(var_1442) = &input.referenced_group_id {
        scope_1441.string(var_1442);
    }
    #[allow(unused_mut)]
    let mut scope_1443 = writer.prefix("Description");
    if let Some(var_1444) = &input.description {
        scope_1443.string(var_1444);
    }
    Ok(())
}

#[allow(unused_mut)]
pub fn serialize_structure_crate_model_create_volume_permission(
    mut writer: aws_smithy_query::QueryValueWriter,
    input: &crate::model::CreateVolumePermission,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    #[allow(unused_mut)]
    let mut scope_1445 = writer.prefix("Group");
    if let Some(var_1446) = &input.group {
        scope_1445.string(var_1446.as_str());
    }
    #[allow(unused_mut)]
    let mut scope_1447 = writer.prefix("UserId");
    if let Some(var_1448) = &input.user_id {
        scope_1447.string(var_1448);
    }
    Ok(())
}

pub const fn values() -> &'static [&'static str]

Returns all the &str values of the enum members.

Trait Implementations

impl AsRef<str> for PermissionGroup

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for PermissionGroup

fn clone(&self) -> PermissionGroup

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PermissionGroup

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&str> for PermissionGroup

fn from(s: &str) -> Self

Converts to this type from the input type.

impl FromStr for PermissionGroup

type Err = Infallible

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for PermissionGroup

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for PermissionGroup

fn cmp(&self, other: &PermissionGroup) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<PermissionGroup> for PermissionGroup

fn eq(&self, other: &PermissionGroup) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<PermissionGroup> for PermissionGroup

fn partial_cmp(&self, other: &PermissionGroup) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for PermissionGroup

impl StructuralEq for PermissionGroup

impl StructuralPartialEq for PermissionGroup