Overview Docs Releases Downloads

Documentation version

Explore

Explore

Documentation version

Getting Started
Interface
Engine
DCode
- Overview
- Getting Started
- Channel Calculations
- Events
- Writing Periodic Tasks
- Building State Machines
- Sequences and Task Lifecycle
- Modules and Native Functions
- Native C++ Execution
- Reference
  - Blocks
    
    Blocks
    do
    elif
    else
    elseif
    for
    for each
    function
    if
    once
    once when
    when
    while
  - Context Variables
    
    Context Variables
    current_state
    current_value
    elapsed_seconds
    lateness_ms
    missed_count
    new_value
    state
    states
    target_state
    value
  - DCode Functions
    
    abort
    callDcodeFunction
    clamp
    DCode Functions
    error
    hold
    insertChannelReference
    message
    print
    promptNumerical
    promptOptions
    promptString
    promptYesNo
    queryChannelReference
    releaseHold
    sleep
    upsertChannelReference
    warning
  - DCode Reference
  - Directives
    
    Directives
    import
    params = yaml
    template(params)
  - Event Metadata
    
    auto_acknowledge
    channels
    description
    Event Metadata
    prompt metadata
    resolution
    system / subsystem
    title
    type
  - Lua Base
    
    _G
    _VERSION
    and
    assert
    break
    collectgarbage
    coroutine
    debug
    dofile
    false
    getmetatable
    goto
    in
    io
    ipairs
    load
    loadfile
    local
    Lua Base
    math
    next
    nil
    not
    or
    os
    package
    pairs
    pcall
    rawequal
    rawget
    rawlen
    rawset
    repeat
    require
    return
    select
    setmetatable
    string
    table
    tonumber
    tostring
    true
    type
    until
    utf8
    xpcall
  - Runtime Blocks
    
    channel_calculation
    event
    loop
    Runtime Blocks
    task_group
    task_periodic
    task_sequence
    task_state_machine
    task_timeline
  - Runtime Sections
    
    calculation body
    depends_on
    end
    loop body
    missed
    on_event
    on_firing
    run
    Runtime Sections
    sequence body
    start
    state
    states
    task
    trigger
  - Statements
    
    automatic override
    claim channel
    command channel
    free channel
    pass
    pipe write
    set channel
    sleep statement
    Statements
    transition
    transition task
    trigger event
    wait for
    wait until
  - Syntax
    
    block comments
    colon and indentation
    dash comments
    dynamic channel reference
    hash comments
    Lua expressions
    Lua tables
    pipe read
    Syntax
Plugins
Clients
- Overview
- Python Client
- Node.js Client
- C++ Client
- React Client
- C++ Share Client
- Reference

No matching pages.

On this page

On this page

Overview Syntax Available in Example Back to top ↑

Covers Engine 2.0.0

pass

Mark an intentionally empty DCode branch.

Syntax

pass

Available in

Executable DCode bodies

Example

pass

Engineering, software, and other things.

© 2026Top ↑

Areas

All areas DARTWIC B-2 Spirit Maintenance Platform DACS Box for Rocket Engine Testing

Recent

No posts yet

Elsewhere

About me LinkedIn ↗ All posts