Crate nsi_trait 

Core traits and types for the Nodal Scene Interface – ɴsɪ.

This crate provides the fundamental abstractions for ɴsɪ without any FFI dependencies. It defines:

• Nsi – the core trait that rendering contexts implement (self is the context)
• ParamValue – trait implemented by Rust values that can be expressed as a single ɴsɪ NSIParam_t at the FFI boundary
• Attribute<T> and its alias Parameter<T> – typed compile-time names
• Type – NSI data type discriminant (#[repr(i32)], C-compatible)
• FfiParam – C-compatible parameter struct (#[repr(C)])
• Flags – Parameter flags (PerFace, PerVertex, etc.)
• Name – Feature-gated string type (ustr::Ustr or String)
• Action – Render control actions
• NodeType – Enum of all standard node types
• Node type constants (ROOT, MESH, etc.)
• Attribute<T> – Typed attribute names with per-name compile-time data-shape verification, plus standard attribute constants (P, FOV, etc.)

Crate Organization

This is a pure Rust crate with no FFI. For FFI wrapper functionality, see the nsi-ffi-wrap crate.

Re-exports

pub use attribute::*;

pub use node::*;

Modules

attribute

Typed attribute / parameter names — compile-time witnesses for ɴsɪ NSIParam_t identifiers.

node

Standard ɴsɪ node types and constants.

Structs

FfiParam

C-compatible parameter struct, layout-identical to NSIParam_t.

Flags

Parameter flags matching the C API constants.

Enums

Action

Actions for render control.

Type

NSI data type discriminant, binary-compatible with NSIType_t from nsi.h.

Traits

Nsi

Core ɴsɪ interface trait.

ParamValue

A single ɴsɪ parameter (name + typed data).

Type Aliases

Name

Interned string type when the ustr feature is enabled, otherwise String.