Struct StructAccessor 

pub struct StructAccessor<'a> { /* private fields */ }

Accessor for struct operations on a Series.

Created by Series::struct(). Values are currently represented as UTF-8 JSON objects. Rust callers use series.r#struct().

Implementations

impl StructAccessor<'_>

pub fn series_name(&self) -> &str

Return the owning Series name for diagnostics.

pub fn is_supported(&self) -> bool

Whether every non-missing value can be interpreted as a struct.

pub fn unsupported_reason(&self) -> String

Typed explanation for fail-closed struct operations.

pub fn field_names(&self) -> Result<Vec<String>, FrameError>

Return the deterministic union of field names across non-missing rows.

pub fn field(&self, name: &str) -> Result<Series, FrameError>

Extract one field from each struct value.

Missing structs and missing fields produce nulls. Non-object values reject the operation before any output is produced.