The Spanda standard library is organized as modular std.* namespaces. Each namespace registers
types and import paths; runtime behavior is provided by the interpreter and domain modules
(safety, simulator, comm, etc.).
Full API reference: spanda-reference.md (generated from the type
checker — all std.* types, global functions, and built-in methods with signatures).
import std.robotics;std package; namespaces are independentstd.*| Namespace | Purpose | Key types |
|---|---|---|
std.core |
Foundation types | Result, Option, Error |
std.time |
Time and scheduling | Time, Duration, Timestamp, Interval |
std.units |
Physical units | Distance, Velocity, Mass, Temperature, … |
std.spatial |
Geometry | Pose, Transform, Vector3D, Path, Trajectory |
std.math |
Scalar math | Float, Int |
std.collections |
Containers | Array, Map, Set, Queue, Stack |
std.result |
Error handling | Result, Option, Error |
std.io |
I/O abstractions | File, Reader, Writer, Bytes |
std.log |
Logging | Logger, LogLevel |
std.ai |
AI models | LLM, VisionModel, Prompt, Completion, ReasoningTrace |
std.robotics |
Robot graph | Robot, Sensor, Actuator, MotionCommand, ActionProposal, SafeAction |
std.sensors |
Sensor payloads | LidarScan, CameraFrame, ImuData, … |
std.actuators |
Actuator types | Motor, Servo, Gripper, DriveUnit, … |
std.safety |
Safety types | Risk, Hazard, SafetyConstraint, EmergencyStop |
std.communication |
Messaging | Message, Topic, Service, Action, Event, Bus |
std.hardware |
Deploy targets | HardwareProfile, CompatibilityReport |
std.sim |
Simulation | Simulator, Scenario, Fault, Replay |
std.twin |
Digital twin | Twin, SimulationState, Telemetry |
std.hri |
Human interaction | Command, Conversation, Intent, Feedback, Approval |
std.security |
Identity & trust | Identity, RobotIdentity, Signature, Permission, TrustLevel |
std.audit |
Audit types | AuditEvent, AuditLog, ProvenanceRecord, MissionRecord |
std.crypto |
Cryptography | Hash, sha256(), sign(), verify_signature() |
import std.units;
import std.spatial;
import std.robotics;
robot Demo {
behavior run() {
let d: Distance = 1.0 m;
let p = pose(x: 0.0, y: 0.0, theta: 0.0);
}
}
See examples/std/ for runnable programs covering time, units, spatial, robotics, AI,
communication, audit, provenance, device identity, and mock ledger anchoring.
Vendor and domain libraries (ROS 2, OpenCV, YOLO, SLAM, ledger backends) ship as optional packages — see packages.md and registry.md.