Struct TemplateRenderer 

pub struct TemplateRenderer;

Template context renderer producing structured JSON from service definitions.

Translates a ServiceDef into a flat, semantic JSON object that template engines can consume directly. Intent scores and render context are ignored — the output is intent-agnostic per design (D-01 through D-08).

Output shape

{
  "service": "Order",
  "fields": {
    "total": { "name": "total", "data_type": "float", "meaning": "money", "required": true }
  },
  "actions": [
    { "name": "submit", "display_name": "Submit", "inputs": [] }
  ],
  "state_machine": {
    "initial_state": "draft",
    "states": [{ "name": "draft", "display_name": "Draft", "is_final": false }],
    "transitions": [{ "from": "draft", "event": "submit", "to": "pending" }]
  }
}

state_machine is null when the service has no state machine.

Example

use ferro_projections::{
    ServiceDef, DataType, FieldMeaning, derive_intents, TemplateRenderer, Renderer, BaseContext,
};

let svc = ServiceDef::new("order")
    .display_name("Order")
    .field("id", DataType::Integer, FieldMeaning::Identifier)
    .field("total", DataType::Float, FieldMeaning::Money);

let intents = derive_intents(&svc);
let renderer = TemplateRenderer;
let result = renderer.render(&svc, &intents, &BaseContext::default());
assert!(result.is_ok());

let json = result.unwrap();
assert_eq!(json["service"], "Order");
assert!(json["fields"]["total"].is_object());
assert!(!json["fields"].as_object().unwrap().contains_key("id"));

Trait Implementations

impl Renderer for TemplateRenderer

type Output = Value

The output type produced by this renderer (e.g., serde_json::Value).

type Context = BaseContext

The context type consumed by this renderer. Must implement Default.

fn render( &self, service: &ServiceDef, _intents: &[IntentScore], _ctx: &BaseContext, ) -> Result<Value, Error>

Renders a service definition into the renderer’s output type.