Module writer 

Demo rewriting APIs and lower-level bitstream writer utilities.

This module is the preferred import path for writing or rewriting demo files. It includes DemoWriter, DemoRewriter, packet message helpers, and the bitstream writer utilities used by advanced rewrites.

Re-exports

pub use crate::error::ParserError;

Structs

DemoWriter

Demo writer that reads demo messages and writes a rewritten stream.

PacketMessage

Packet message passed to packet-list rewriters.

RewriteInterests

Bitflags for declaring rewrite interests.

StringTableEntryUpdate

A mutable string table entry update passed to demo rewriters.

Enums

MessageRewrite

Outcome for a message rewrite operation.

Traits

DemoRewriter

Trait for handling demo rewrites.

Functions

rewrite_protobuf_message

Rewrites a prost message by decoding, mutating, and re-encoding it.

write_demo_message

Writes a demo command message and returns the number of bytes emitted.

write_demo_message_with_compression

Writes a demo command message, optionally Snappy-compressing the payload.

write_var_u32_to_buf

Appends an unsigned varint used for 32-bit demo fields to a byte buffer.

write_var_u32_to_vec

Encodes an unsigned varint used for 32-bit demo fields into a new byte vector.

write_var_u64_to_buf

Appends an unsigned 64-bit varint to a byte buffer.

write_var_u64_to_vec

Encodes an unsigned 64-bit varint into a new byte vector.

Attribute Macros

replace_entity_field

Replaces decoded entity field values with custom logic.

rewrite_demo_message

Rewrites an outer demo command payload.

rewrite_demo_string_tables

Rewrites a decoded CDemoStringTables outer demo message.

rewrite_field

Replaces decoded entity field values with class and field filters.

rewrite_packet_message

Rewrites an individual message inside a demo packet.

rewrite_packet_messages

Mutates the decoded packet message list after per-message rewrites.

rewrite_string_table_entry

Rewrites one decoded string table entry update.

rewrite_svc_create_string_table

Rewrites a decoded svc_CreateStringTable packet message.

rewrite_svc_update_string_table

Rewrites a decoded svc_UpdateStringTable packet message.

rewriter

Implements the DemoRewriter trait for your struct.

should_rewrite_entity

Filters which entities enter the entity field rewrite path.

should_track_entity

Filters which entities retain decoded field state while rewriting.