Module write 

The one append-only writer every L4 target uses.

Targets write text straight into a Writer. The writer owns:

• the output text, only ever appended to;
• indentation (two spaces per level, written by Writer::newline);
• the set of runtime helpers the body used, in first-use order;
• span links, through a LinkSink chosen at compile time. With NoLinks every link call compiles to nothing, so a writer that does not record costs exactly what a bare string buffer costs.

Preambles (helper imports, hoists, cache declarations) depend on what the body used, so they are written last into their own writer and joined by Writer::finish_with_preamble: one exact-capacity allocation and one copy of each part. Nothing is ever insert_str-ed mid-text.

EmitDocument and SpanLink are the finished form of a recording writer. The production compiler retains its independent document until its fix-history gate closes (#6880).

Re-exports

pub use document::EmitDocument;

pub use document::SpanLink;

Modules

document

The L4 structured emission document (Davinci P3-9).

rewrite_spans

Identifier spans for context-rewritten template expressions (P3-9).

source_map

Source Map v3 emission for generated render code.

Structs

Emitted

Finished output: the text and the links over it.

NoLinks

The sink of a writer that does not record: every call is a no-op.

Recorded

The sink of a recording writer: the SpanLinks in emission order.

Writer

Append-only text writer with indentation, used helpers and span links.

Traits

LinkSink

Where span links go. Chosen per writer at compile time.