Standard Library Overview

Flame comes with a rich standard library (std.*) implemented directly in native Rust for maximum speed, system compatibility, and deterministic safety. All standard modules are ready for import without requiring external third-party dependencies.

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Global Built-in Functions

Flame provides several built-in global functions and assertion utilities available in every scope without importing any modules:

// Console Output
print("Hello ")
println("Flame!")
eprint("Error logged to stderr\n")

// Assertions & Testing Utilities
assert(1 + 1 == 2)
assertTrue(true)
assertFalse(5 < 3)
assertEq("flame", "flame")
assertNe(10, 20)

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Standard Module Index & Status

Formatting (std.fmt)String formatting and manipulation utilities.

JSON (std.json)High-performance streaming JSON parsing, serialization, and file I/O.

Environment Variables (std.env)Read and write system environment variables.

File System (std.fs)File reading, writing, and path manipulation.

Networking (std.net)TCP, UDP, HTTP, WebSockets, MQTT and JSON parsing.

WebSockets (std.net.ws)Full-duplex WebSocket client and server networking.

Process (std.process)Sub-process execution and working directory management.

OS Introspection (std.os)Operating system details and host properties.

Byte Manipulation (std.byte)Raw binary byte streams and buffer operations.

Desktop Automation (std.desktop)Cross-platform mouse control and keyboard input.

Window Management (std.window)Cross-platform desktop application window control and manipulation.

Threading (std.thread)Lightweight concurrency and message passing channels.

Time (std.time)High-precision timing, sleeping, and timestamps.

Math (std.math)Trigonometric functions, random numbers, and math utilities.

Unit System (std.unit)Dimensional analysis, physical quantities, and math with units.

Annotations & Metaprogramming (std.annotation)Target reflection, function references, and dynamic transformations.

Camera (std.camera)Webcam frame capture and video stream processing.

Web Applications (std.web)Fine-grained reactive UI, direct JS compilation, and browser APIs.

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Importing Standard Modules

Standard modules are imported using the std. namespace. Top-level expressions execute directly without requiring an entry point function:

import std.net.http
import std.json
import std.fs
import std.byte
import std.os
import std.thread
import std.math
import std.time
import std.desktop
import std.fmt
import std.unit


println($"Running Flame on {os.name()} ({os.arch()})")