index.md

layout	default
title	Runtime
parent	Architecture
has_children	true
nav_order	2
permalink	/architecture/runtime/

PineTS Runtime Engine

The runtime environment executes the transpiled code. It simulates the Pine Script execution model where the script runs once for every bar in the dataset.

Key Components

• PineTS Class: The entry point. Manages the data provider, pagination, and execution loop.
• Context Class: The "Global State" passed to the script. Holds all variables, series data, and namespace instances.
• Series Class: The fundamental data structure wrapping arrays.

Execution Model

PineTS follows a "Push-Based" execution model:

1. Load Data: Fetch OHLCV data from a Provider.
2. Initialize Context: Create the $ object.
3. Run Loop:
   • For each historical bar:
     • Update context.idx.
     • Push new OHLCV data into context.data arrays.
     • Execute the user script.
     • Grow all user variables (push current value to history).
   • Collect results/plots.

This ensures that close[1] always refers to the data from the previous iteration.