#[non_exhaustive]
pub enum AdTriggersElement {
    Break,
    DistributorAdvertisement,
    DistributorOverlayPlacementOpportunity,
    DistributorPlacementOpportunity,
    ProviderAdvertisement,
    ProviderOverlayPlacementOpportunity,
    ProviderPlacementOpportunity,
    SpliceInsert,
    Unknown(UnknownVariantValue),
}
Expand description

When writing a match expression against AdTriggersElement, 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 adtriggerselement = unimplemented!();
match adtriggerselement {
    AdTriggersElement::Break => { /* ... */ },
    AdTriggersElement::DistributorAdvertisement => { /* ... */ },
    AdTriggersElement::DistributorOverlayPlacementOpportunity => { /* ... */ },
    AdTriggersElement::DistributorPlacementOpportunity => { /* ... */ },
    AdTriggersElement::ProviderAdvertisement => { /* ... */ },
    AdTriggersElement::ProviderOverlayPlacementOpportunity => { /* ... */ },
    AdTriggersElement::ProviderPlacementOpportunity => { /* ... */ },
    AdTriggersElement::SpliceInsert => { /* ... */ },
    other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
    _ => { /* ... */ },
}

The above code demonstrates that when adtriggerselement represents NewFeature, the execution path will lead to the second last match arm, even though the enum does not contain a variant AdTriggersElement::NewFeature in the current version of SDK. The reason is that the variable other, created by the @ operator, is bound to AdTriggersElement::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 AdTriggersElement::NewFeature is defined. Specifically, when adtriggerselement represents NewFeature, the execution path will hit the second last match arm as before by virtue of calling as_str on AdTriggersElement::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)§

This enum is marked as 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.
§

Break

§

DistributorAdvertisement

§

DistributorOverlayPlacementOpportunity

§

DistributorPlacementOpportunity

§

ProviderAdvertisement

§

ProviderOverlayPlacementOpportunity

§

ProviderPlacementOpportunity

§

SpliceInsert

§

Unknown(UnknownVariantValue)

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

Implementations§

Returns the &str value of the enum member.

Examples found in repository?
src/model.rs (line 1803)
1802
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    fn as_ref(&self) -> &str {
        self.as_str()
    }
More examples
Hide additional examples
src/json_ser.rs (line 349)
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pub fn serialize_structure_crate_model_dash_package(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::DashPackage,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_76) = &input.ad_triggers {
        let mut array_77 = object.key("adTriggers").start_array();
        for item_78 in var_76 {
            {
                array_77.value().string(item_78.as_str());
            }
        }
        array_77.finish();
    }
    if let Some(var_79) = &input.ads_on_delivery_restrictions {
        object
            .key("adsOnDeliveryRestrictions")
            .string(var_79.as_str());
    }
    if let Some(var_80) = &input.encryption {
        #[allow(unused_mut)]
        let mut object_81 = object.key("encryption").start_object();
        crate::json_ser::serialize_structure_crate_model_dash_encryption(&mut object_81, var_80)?;
        object_81.finish();
    }
    if input.include_iframe_only_stream {
        object
            .key("includeIframeOnlyStream")
            .boolean(input.include_iframe_only_stream);
    }
    if let Some(var_82) = &input.manifest_layout {
        object.key("manifestLayout").string(var_82.as_str());
    }
    if input.manifest_window_seconds != 0 {
        object.key("manifestWindowSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.manifest_window_seconds).into()),
        );
    }
    if input.min_buffer_time_seconds != 0 {
        object.key("minBufferTimeSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.min_buffer_time_seconds).into()),
        );
    }
    if input.min_update_period_seconds != 0 {
        object.key("minUpdatePeriodSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.min_update_period_seconds).into()),
        );
    }
    if let Some(var_83) = &input.period_triggers {
        let mut array_84 = object.key("periodTriggers").start_array();
        for item_85 in var_83 {
            {
                array_84.value().string(item_85.as_str());
            }
        }
        array_84.finish();
    }
    if let Some(var_86) = &input.profile {
        object.key("profile").string(var_86.as_str());
    }
    if input.segment_duration_seconds != 0 {
        object.key("segmentDurationSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.segment_duration_seconds).into()),
        );
    }
    if let Some(var_87) = &input.segment_template_format {
        object.key("segmentTemplateFormat").string(var_87.as_str());
    }
    if let Some(var_88) = &input.stream_selection {
        #[allow(unused_mut)]
        let mut object_89 = object.key("streamSelection").start_object();
        crate::json_ser::serialize_structure_crate_model_stream_selection(&mut object_89, var_88)?;
        object_89.finish();
    }
    if input.suggested_presentation_delay_seconds != 0 {
        object.key("suggestedPresentationDelaySeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.suggested_presentation_delay_seconds).into()),
        );
    }
    if let Some(var_90) = &input.utc_timing {
        object.key("utcTiming").string(var_90.as_str());
    }
    if let Some(var_91) = &input.utc_timing_uri {
        object.key("utcTimingUri").string(var_91.as_str());
    }
    Ok(())
}

pub fn serialize_structure_crate_model_hls_package(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::HlsPackage,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_92) = &input.ad_markers {
        object.key("adMarkers").string(var_92.as_str());
    }
    if let Some(var_93) = &input.ad_triggers {
        let mut array_94 = object.key("adTriggers").start_array();
        for item_95 in var_93 {
            {
                array_94.value().string(item_95.as_str());
            }
        }
        array_94.finish();
    }
    if let Some(var_96) = &input.ads_on_delivery_restrictions {
        object
            .key("adsOnDeliveryRestrictions")
            .string(var_96.as_str());
    }
    if let Some(var_97) = &input.encryption {
        #[allow(unused_mut)]
        let mut object_98 = object.key("encryption").start_object();
        crate::json_ser::serialize_structure_crate_model_hls_encryption(&mut object_98, var_97)?;
        object_98.finish();
    }
    if input.include_dvb_subtitles {
        object
            .key("includeDvbSubtitles")
            .boolean(input.include_dvb_subtitles);
    }
    if input.include_iframe_only_stream {
        object
            .key("includeIframeOnlyStream")
            .boolean(input.include_iframe_only_stream);
    }
    if let Some(var_99) = &input.playlist_type {
        object.key("playlistType").string(var_99.as_str());
    }
    if input.playlist_window_seconds != 0 {
        object.key("playlistWindowSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.playlist_window_seconds).into()),
        );
    }
    if input.program_date_time_interval_seconds != 0 {
        object.key("programDateTimeIntervalSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.program_date_time_interval_seconds).into()),
        );
    }
    if input.segment_duration_seconds != 0 {
        object.key("segmentDurationSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.segment_duration_seconds).into()),
        );
    }
    if let Some(var_100) = &input.stream_selection {
        #[allow(unused_mut)]
        let mut object_101 = object.key("streamSelection").start_object();
        crate::json_ser::serialize_structure_crate_model_stream_selection(
            &mut object_101,
            var_100,
        )?;
        object_101.finish();
    }
    if input.use_audio_rendition_group {
        object
            .key("useAudioRenditionGroup")
            .boolean(input.use_audio_rendition_group);
    }
    Ok(())
}

pub fn serialize_structure_crate_model_mss_package(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::MssPackage,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_102) = &input.encryption {
        #[allow(unused_mut)]
        let mut object_103 = object.key("encryption").start_object();
        crate::json_ser::serialize_structure_crate_model_mss_encryption(&mut object_103, var_102)?;
        object_103.finish();
    }
    if input.manifest_window_seconds != 0 {
        object.key("manifestWindowSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.manifest_window_seconds).into()),
        );
    }
    if input.segment_duration_seconds != 0 {
        object.key("segmentDurationSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.segment_duration_seconds).into()),
        );
    }
    if let Some(var_104) = &input.stream_selection {
        #[allow(unused_mut)]
        let mut object_105 = object.key("streamSelection").start_object();
        crate::json_ser::serialize_structure_crate_model_stream_selection(
            &mut object_105,
            var_104,
        )?;
        object_105.finish();
    }
    Ok(())
}

pub fn serialize_structure_crate_model_cmaf_encryption(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::CmafEncryption,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_106) = &input.constant_initialization_vector {
        object
            .key("constantInitializationVector")
            .string(var_106.as_str());
    }
    if let Some(var_107) = &input.encryption_method {
        object.key("encryptionMethod").string(var_107.as_str());
    }
    if input.key_rotation_interval_seconds != 0 {
        object.key("keyRotationIntervalSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.key_rotation_interval_seconds).into()),
        );
    }
    if let Some(var_108) = &input.speke_key_provider {
        #[allow(unused_mut)]
        let mut object_109 = object.key("spekeKeyProvider").start_object();
        crate::json_ser::serialize_structure_crate_model_speke_key_provider(
            &mut object_109,
            var_108,
        )?;
        object_109.finish();
    }
    Ok(())
}

pub fn serialize_structure_crate_model_hls_manifest_create_or_update_parameters(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::HlsManifestCreateOrUpdateParameters,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_110) = &input.ad_markers {
        object.key("adMarkers").string(var_110.as_str());
    }
    if let Some(var_111) = &input.ad_triggers {
        let mut array_112 = object.key("adTriggers").start_array();
        for item_113 in var_111 {
            {
                array_112.value().string(item_113.as_str());
            }
        }
        array_112.finish();
    }
    if let Some(var_114) = &input.ads_on_delivery_restrictions {
        object
            .key("adsOnDeliveryRestrictions")
            .string(var_114.as_str());
    }
    if let Some(var_115) = &input.id {
        object.key("id").string(var_115.as_str());
    }
    if input.include_iframe_only_stream {
        object
            .key("includeIframeOnlyStream")
            .boolean(input.include_iframe_only_stream);
    }
    if let Some(var_116) = &input.manifest_name {
        object.key("manifestName").string(var_116.as_str());
    }
    if let Some(var_117) = &input.playlist_type {
        object.key("playlistType").string(var_117.as_str());
    }
    if input.playlist_window_seconds != 0 {
        object.key("playlistWindowSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.playlist_window_seconds).into()),
        );
    }
    if input.program_date_time_interval_seconds != 0 {
        object.key("programDateTimeIntervalSeconds").number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((input.program_date_time_interval_seconds).into()),
        );
    }
    Ok(())
}

Returns all the &str values of the enum members.

Trait Implementations§

Converts this type into a shared reference of the (usually inferred) input type.
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
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This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
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Auto Trait Implementations§

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Gets the TypeId of self. Read more
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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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