@invinite-org/chartlang-core

experimental

Types and script-facing primitives for chartlang indicators, alerts, drawings, inputs, state slots, views, and secondary-timeframe requests.

Install

pnpm add @invinite-org/chartlang-core

Public surface

• Constructors: defineIndicator, defineAlert, defineDrawing.
• Inputs: input.int, float, bool, string, enum, color, source, time, price, symbol, interval, externalSeries.
• Stateful slots: state.float, int, bool, string, plus state.tick.* for tick-persistent varip semantics.
• Views: barstate, syminfo, timeframe.
• Secondary stream: request.security({ interval }) (data) and request.security({ interval }, (bar) => …) (HTF expression) typed surface.
• Emissions: plot, hline, alert, and the 61-kind draw.* namespace.
• Registry: STATEFUL_PRIMITIVES for compiler slot-id injection.
• Indicator composition (Phase 7): CompiledScriptObject.output(title) / .withInputs(overrides) accessors for binding one indicator's output to another. Both are compiler-rewritten sentinels — direct invocation throws. isCompiledScriptBundle(v) narrows the multi-script bundle.
• Types: Series<T>, Bar, InputDescriptor, MutableSlot<T>, ScriptManifest, ComputeContext, DrawingState, DrawingHandle, DrawingCounts, SecurityBar, view types, option/result types, plus DependencyDeclaration, OutputDeclaration, CompiledScriptBundle.

Minimum-viable API call

import { defineIndicator, input, state } from "@invinite-org/chartlang-core";

export default defineIndicator({
    name: "Session High",
    apiVersion: 1,
    inputs: { length: input.int(20, { min: 1 }) },
    compute: ({ bar, plot }) => {
        const high = state.float(bar.high);
        high.value = Math.max(high.value, bar.high);
        plot(high.value);
    },
});

Docs

See docs/language/overview.md and generated primitive pages under docs/primitives/.

License

MIT