Enum ForSpec 

pub enum ForSpec {
    Inline(String),
    ClauseList(Vec<String>),
    UnionOfClauseLists(Vec<Vec<String>>),
}

The three accepted shapes of the for field.

Routes through the legacy parser:

• ForSpec::Inline → one call to parse_clause_list, then the structural-detection rule (comprehension_from_subspaces).
• ForSpec::ClauseList → one parse_clause_list per entry; each entry becomes its own sub-space (so name repetition across entries triggers Union per the rule).
• ForSpec::UnionOfClauseLists → one parse_clause_list per inner list; each inner list is one sub-space.

Variants

Inline(String)

for: "k in 1..10, limit in [1, 2, 3]" — one inline string, possibly multi-clause.

ClauseList(Vec<String>)

for: ["k in 1..10", "limit in [1, 2, 3]"] — each entry is one clause’s text.

UnionOfClauseLists(Vec<Vec<String>>)

for: [["k in 10", "limit in 1..5"], …] — each inner list is one sub-space (cartesian over those clauses).

Trait Implementations

impl Clone for ForSpec

fn clone(&self) -> ForSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ForSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ForSpec

fn deserialize<__D>( __deserializer: __D, ) -> Result<ForSpec, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ForSpec

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.