Struct Limits 

pub struct Limits {
    pub decompressed_bytes: u64,
    pub compression_ratio: u64,
    pub rows_per_category: u64,
    pub nesting_depth: u32,
    pub dictionary_entries: u32,
}

Ceilings that turn hostile input into diagnostics rather than exhaustion.

Fields

decompressed_bytes: u64

Largest accepted size after decompression, in bytes.

Unbounded by default. The ceiling exists to stop a small compressed input expanding without limit, and that job is done by Self::compression_ratio, which bounds expansion against the bytes actually supplied. An absolute ceiling additionally refuses large uncompressed input, where there is nothing to defend against: the file is already that size, and reading it cannot multiply it.

A caller who wants an absolute ceiling sets one.

compression_ratio: u64

Largest accepted ratio of decompressed to compressed size.

rows_per_category: u64

Largest accepted declared row count for one category.

nesting_depth: u32

Deepest accepted nesting.

dictionary_entries: u32

Largest accepted identifier dictionary.

Implementations

impl Limits

pub fn exceeded(limit: &'static str, value: impl Display) -> Diagnostic

Builds the registered finding for a violated ceiling.

Trait Implementations

impl Clone for Limits

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Limits

impl Debug for Limits

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

Formats the value using the given formatter.

impl Default for Limits

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Limits

impl PartialEq for Limits

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Limits