Enum ForeignState 

pub enum ForeignState<'a> {
    Raw {
        format: PluginFormat,
        source_key: Option<&'a str>,
        bytes: &'a [u8],
    },
    MismatchedEnvelope {
        plugin_id_hash: u64,
        params: &'a [(u32, f64)],
        extra: Option<&'a [u8]>,
    },
}

What a format wrapper found where truce state should have been. Handed to crate::plugin::PluginRuntime::migrate_state on the host thread; the plugin decides whether it recognizes the bytes.

Variants

Raw

Bytes that aren’t a truce envelope: a previous framework’s state, exactly as the old build saved it.

Fields

format: PluginFormat

source_key: Option<&'a str>

The container key the bytes were found under, for keyed formats (AU dict key, LV2 property URI, AAX chunk id). None for stream formats (CLAP / VST3 / VST2).

bytes: &'a [u8]

MismatchedEnvelope

A valid truce envelope whose plugin_id_hash doesn’t match: the plugin was renamed / re-identified. Params are already decoded; the plugin only decides whether to accept them.

Fields

plugin_id_hash: u64

params: &'a [(u32, f64)]

extra: Option<&'a [u8]>