working tuple types

tuple return types just about implemented
Functions returning tuples somewhat working, but they clobber the popped ra
2025-12-30 00:58:02 -07:00 · 2025-12-30 00:32:55 -07:00 · 2025-12-29 23:55:00 -07:00 · 2025-12-29 23:17:18 -07:00 · 2025-12-29 22:33:16 -07:00 · 2025-12-29 22:17:19 -07:00
32 changed files with 3071 additions and 769 deletions
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,43 @@
 # Changelog

+[0.4.7]
+
+- Added support for Windows CRLF endings
+
+[0.4.6]
+
+- Fixed bug in compiler where you were unable to assign a `const` value to
+  a `let` variable
+
+[0.4.5]
+
+- Fixed issue where after clicking "Cancel" on the IC10 Editor, the side-by-side
+  IC10 output would no longer update with highlighting or code updates.
+- Added ability to live-reload the mod while developing using the `ScriptEngine`
+  mod from BepInEx
+  - This required adding in cleanup code to cleanup references to the Rust DLL
+    before destroying the mod instance.
+- Added BepInEx debug logging. This will ONLY show if you have debug logs
+  enabled in the BepInEx configuration file.
+
+[0.4.4]
+
+- Added Stationpedia docs back after removing all harmony patches from the mod
+
+[0.4.3]
+
+- Removed references to the `Mod` class from SLP. This was the root of the multiplayer
+  connectivity issues. Multiplayer should now work with Slang installed.
+
+[0.4.2]
+
+- Removed all harmony patches as most functionality as been added into the
+  `IC10 Editor` mod
+- IC10 runtime errors will have been reverted back to showing as IC10 line
+  numbers instead of Slang line numbers.
+  - The IC10 line should be easily mapped to a Slang line via the side-by-side
+    IC10 compilation view.
+
 [0.4.1]

 - Update syscalls for `loadSlot` and `setSlot` to support expressions instead of
--- a/ModData/About/About.xml
+++ b/ModData/About/About.xml
@@ -2,11 +2,11 @@
 <ModMetadata xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Name>Slang</Name>
  <Author>JoeDiertay</Author>
-  <Version>0.4.1</Version>
+  <Version>0.4.7</Version>
  <Description>
 [h1]Slang: High-Level Programming for Stationeers[/h1]

-Stop writing assembly. Start writing code.
+Iterate faster. Stop writing assembly. Start writing code.

 Slang (Stationeers Language) brings modern programming to Stationeers. It allows you to write scripts using a familiar C-style syntax (variables, functions, if/else, loops) directly in the in-game editor. When you hit confirm, Slang compiles your code into IC10 instantly.

@@ -15,7 +15,7 @@ Slang (Stationeers Language) brings modern programming to Stationeers. It allows
 [h2]Features[/h2]
 [list]
 [*] [b]In-Game Compilation:[/b] No external tools needed. Write Slang directly in the IC editor.
-[*] [b]No More Register Juggling:[/b] Define variables with let (e.g., let temp = 300). The compiler manages r0-r15 for you.
+[*] [b]No More Register Juggling:[/b] Define variables with let (e.g., let temp = 200c). The compiler manages r0-r15 for you.
 [*] [b]Control Flow:[/b] Write readable logic with if, else, while, loop, break, and continue.
 [*] [b]Functions:[/b] Create reusable code blocks with arguments.
 [*] [b]Smart Editor:[/b] Get real-time syntax highlighting and error checking (red text) as you type.
@@ -53,14 +53,13 @@ loop {
 [h2]Known Issues (Beta)[/h2]
 [list]
 [*] [b]Stack Access:[/b] Direct stack memory access is disabled to prevent conflicts with the compiler's internal memory management. A workaround is being planned.
-[*] [b]Documentation:[/b] In-game tooltips for syscalls (like load, set) are WIP. Check the "Slang" entry in the Stationpedia (F1) for help.
+[*] [b]Documentation:[/b] In-game tooltips for syscalls (like load, set) are WIP. Check the "Slang" entry in the Stationpedia (F1) for help, or checkout [url=https://github.com/dbidwell94/stationeers_lang/blob/master/docs/getting-started.md]The Docs[/url] for guides on how to get started.
 [/list]

 [h2]Planned Features[/h2]
 [list]
 [*] Enhanced LSP features (Autocomplete, Go to Definition).
 [*] Full feature parity with all IC10 instructions.
-[*] Tutorials and beginner script examples.
 [/list]

 [h2]FAQ[/h2]
@@ -70,10 +69,18 @@ A: The Slang compiler is built in Rust for performance and reliability. It is co
 [b]Q: Is this compatible with my current save?[/b]
 A: Yes! Slang does not modify any existing IC10 code, it is only a compiler. As a matter of fact: if you wish to stop using Slang at any time, your compiled IC10 will still exist on the chip. However: Slang adds a comment at the bottom of your compiled IC10 which is a GZIP and base64 encoded version of your Slang source code. This might break line limits with Slang not installed. If you wish to no longer use Slang, I recommend you remove this comment from the source code after uninstalling Slang.

+[b]Q: Does this modify the in-game scripting language[/b]
+A: No! Slang compiles directly to IC10. Any valid Slang file will produce valid IC10. The goal of this mod is twofold:
+[list]
+[*] Allow experienced users to quickly iterate on their scripts to get back into base upgrades faster
+[*] Allow newcomers who already know C-style languages (JS/C#/Java/Rust/C/etc) to see how it maps to IC10 so they can get to understand IC10 better
+[/list]
+
 [h2]Useful Links[/h2]
 [url=https://github.com/dbidwell94/stationeers_lang]Source Code on GitHub[/url]
 [url=https://discord.gg/stationeers]Stationeers Official Discord[/url]
 [url=https://discord.gg/M4sCfYMacs]Stationeers Modding Discord[/url]
+[url=https://github.com/dbidwell94/stationeers_lang/blob/master/docs/getting-started.md]Getting Started Guide[/url]
  </Description>
  <ChangeLog xsi:nil="true" />
  <WorkshopHandle>3619985558</WorkshopHandle>
@@ -86,7 +93,7 @@ A: Yes! Slang does not modify any existing IC10 code, it is only a compiler. As
    <Tag>Quality of Life</Tag>
  </Tags>
  <DependsOn WorkshopHandle="3592775931" />
-  <OrderBefore WorkshopHandle="3592775931" />
+  <OrderAfter WorkshopHandle="3592775931" />
  <InGameDescription><![CDATA[
        <size=30><color=#ffff00>Slang - High Level Language Compiler</color></size>
        A modern programming experience for Stationeers. Write C-style code that compiles to IC10 instantly.
@@ -116,5 +123,7 @@ A: Yes! Slang does not modify any existing IC10 code, it is only a compiler. As
        See: https://github.com/StationeersLaunchPad/StationeersLaunchPad

        Source Code: https://github.com/dbidwell94/stationeers_lang
+
+        Documentation: https://github.com/dbidwell94/stationeers_lang/blob/master/docs/getting-started.md
        ]]></InGameDescription>
 </ModMetadata>
--- a/README.md
+++ b/README.md
@@ -1,30 +1,45 @@
-# Stationeers Language (slang)
+# Slang Language Documentation

-This is an ambitious attempt at creating:
+Slang is a high-level programming language that compiles to IC10 assembly for [Stationeers](https://store.steampowered.com/app/544550/Stationeers/).
+It provides a familiar C-like syntax while targeting the limited instruction set
+of in-game IC10.

- A new programming language (slang)
- A compiler to translate slang -> IC10
- A mod to allow direct input of slang in the in-game script editor to
-  automatically compile to IC10 before running
+## Quick Links

-This project currently outputs 3 files:
+- [Getting Started](docs/getting-started.md) - Installation and first program
+- [Language Reference](docs/language-reference.md) - Complete syntax guide
+- [Built-in Functions](docs/builtins.md) - System calls and math functions
+- [Examples](docs/examples.md) - Real-world code samples

- A Linux CLI
- A Windows CLI
- A Windows FFI dll
-  - Contains a single function: `compile_from_string`
+## Overview

-The aim of this project is to lower the amount of time it takes to code simple
-scripts in Stationeers so you can get back to engineering atmospherics or
-whatever you are working on. This project is NOT meant to fully replace IC10.
-Obviously hand-coded assembly written by an experienced programmer is more
-optimized and smaller than something that a C compiler will spit out. This is
-the same way. It WILL produce valid IC10, but for large complicated projects it
-might produce over the allowed limit of lines the in-game editor supports.
+Slang aims to reduce the time spent writing IC10 assembly by providing:

-Current Unknowns
+- **Familiar syntax** - C-like declarations, control flow, and expressions
+- **Device abstraction** - Named device bindings with property access
+- **Automatic register allocation** - No manual register management
+- **Built-in functions** - Math operations and device I/O as function calls
+- **Temperature literals** - Native support for Celsius, Fahrenheit, and Kelvin

- Should I support a configurable script line length in-game to allow larger
-  scripts to be saved?
- Should compilation be "behind the scenes" (in game editor will ALWAYS be what
-  you put in. IC10 will be IC10, slang will be slang)
+## Example
+
+```rust
+device gasSensor = "d0";
+device airCon = "d1";
+
+const TARGET_TEMP = 20c;
+
+loop {
+    yield();
+    airCon.On = gasSensor.Temperature > TARGET_TEMP;
+}
+```
+
+This compiles to IC10 that monitors temperature and controls an air
+conditioner.
+
+## Project Status
+
+Slang is under active development. It may produce suboptimal code for complex programs.
+It is not a replacement for IC10, for performance-critical or large scripts,
+hand-written IC10 may still be preferred.
--- a/csharp_mod/Formatter.cs
+++ b/csharp_mod/Formatter.cs
@@ -5,21 +5,37 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
-using ImGuiNET;
 using StationeersIC10Editor;
-using StationeersIC10Editor.IC10;
-using UnityEngine;

 public class SlangFormatter : ICodeFormatter
 {
+    public const string SLANG_SRC = "SLANG_SRC";
    private CancellationTokenSource? _lspCancellationToken;
    private object _tokenLock = new();

-    private IC10CodeFormatter iC10CodeFormatter = new IC10CodeFormatter();
+    protected Editor? __Ic10Editor = null;
+
+    protected Editor Ic10Editor
+    {
+        get
+        {
+            if (__Ic10Editor == null)
+            {
+                var tab = Editor.ParentTab;
+                tab.ClearExtraEditors();
+                __Ic10Editor = new Editor(Editor.KeyHandler);
+                Ic10Editor.IsReadOnly = true;
+                tab.AddEditor(__Ic10Editor);
+            }
+
+            return __Ic10Editor;
+        }
+    }
+
    private string ic10CompilationResult = "";
    private List<SourceMapEntry> ic10SourceMap = new();

-    // VS Code Dark Theme Palette
+    #region Colors
    public static readonly uint ColorControl = ColorFromHTML("#C586C0"); // Pink (if, return, loop)
    public static readonly uint ColorDeclaration = ColorFromHTML("#569CD6"); // Blue (let, device, fn)
    public static readonly uint ColorFunction = ColorFromHTML("#DCDCAA"); // Yellow (syscalls)
@@ -28,10 +44,8 @@ public class SlangFormatter : ICodeFormatter
    public static readonly uint ColorBoolean = ColorFromHTML("#569CD6"); // Blue (true/false)
    public static readonly uint ColorIdentifier = ColorFromHTML("#9CDCFE"); // Light Blue (variables)
    public static new readonly uint ColorDefault = ColorFromHTML("#D4D4D4"); // White (punctuation ; { } )
-
-    // Operators are often the same color as default text in VS Code Dark,
-    // but having a separate definition lets you tweak it (e.g. make them slightly darker or distinct)
    public static readonly uint ColorOperator = ColorFromHTML("#D4D4D4");
+    #endregion

    private HashSet<uint> _linesWithErrors = new();
    private int _lastLineCount = -1;
@@ -49,6 +63,11 @@ public class SlangFormatter : ICodeFormatter
        if (string.IsNullOrWhiteSpace(input))
            return 0d;

+        if (input.Contains(SLANG_SRC))
+        {
+            return 1.0;
+        }
+
        // Run the compiler to get diagnostics
        var diagnostics = Marshal.DiagnoseSource(input);

@@ -75,35 +94,28 @@ public class SlangFormatter : ICodeFormatter

    public override string Compile()
    {
-        return this.Lines.RawText;
+        if (!Marshal.CompileFromString(RawText, out var compilationResult, out var sourceMap))
+        {
+            return "# Compilation Error";
+        }
+
+        return compilationResult + $"\n{EncodeSource(RawText, SLANG_SRC)}";
    }

-    public override void DrawLine(int lineIndex, TextRange selection, bool drawLineNumber = true)
+    public override void ResetCode(string code)
    {
-        Vector2 cursorPos = ImGui.GetCursorScreenPos();
-        Vector2 space = ImGui.GetContentRegionAvail();
-        base.DrawLine(lineIndex, selection, drawLineNumber);
-
-        var charWidth = Settings.CharWidth;
-
-        var width = Mathf.Max(Lines.Width + 10.0f + LineNumberOffset * charWidth, space.x / 2);
-
-        ImGui
-            .GetWindowDrawList()
-            .AddLine(
-                new Vector2(cursorPos.x + width + 4.5f * charWidth, cursorPos.y),
-                new Vector2(
-                    cursorPos.x + width + 4.5f * charWidth,
-                    cursorPos.y + space.y + Settings.LineHeight
-                ),
-                ColorLineNumber,
-                1.0f
-            );
-
-        cursorPos.x += width;
-        ImGui.SetCursorScreenPos(cursorPos);
-        if (lineIndex < iC10CodeFormatter.Lines.Count)
-            iC10CodeFormatter.DrawLine(lineIndex, new TextRange(), true);
+        // for compatibility, we need to check for GlobalCode.SLANG_SRC
+        // `#SLANG_SRC:<code>`
+        // and replace with `# SLANG_SRC: <code>`
+        if (code.Contains(GlobalCode.SLANG_SRC))
+        {
+            code = code.Replace(GlobalCode.SLANG_SRC, $"# {SLANG_SRC}: ");
+        }
+        if (code.Contains(SLANG_SRC))
+        {
+            code = ExtractEncodedSource(code, SLANG_SRC);
+        }
+        base.ResetCode(code);
    }

    public override StyledLine ParseLine(string line)
@@ -122,6 +134,10 @@ public class SlangFormatter : ICodeFormatter
        return styledLine;
    }

+    /// <summary>
+    /// This handles calling the `HandleLsp` function by creating a new `CancellationToken` and
+    /// cancelling the current call if applicable.
+    /// </summary>
    private void HandleCodeChanged()
    {
        CancellationToken token;
@@ -137,6 +153,11 @@ public class SlangFormatter : ICodeFormatter
        _ = HandleLsp(inputSrc, token);
    }

+    /// <summary>
+    /// Takes a copy of the current source code and sends it to the Rust compiler in a background thread
+    /// to get diagnostic data. This also handles getting a compilation response of optimized IC10 for the
+    /// side-by-side IC10Editor to show with sourcemap highlighting.
+    /// </summary>
    private async Task HandleLsp(string inputSrc, CancellationToken cancellationToken)
    {
        try
@@ -169,24 +190,21 @@ public class SlangFormatter : ICodeFormatter
                return;
            }

-            var (compilationSuccess, compiled, sourceMap) = await Task.Run(
-                () =>
-                {
-                    var successful = Marshal.CompileFromString(
-                        inputSrc,
-                        out var compiled,
-                        out var sourceMap
-                    );
-                    return (successful, compiled, sourceMap);
-                },
-                cancellationToken
-            );
+            var (compilationSuccess, compiled, sourceMap) = await Task.Run(() =>
+            {
+                var successful = Marshal.CompileFromString(
+                    inputSrc,
+                    out var compiled,
+                    out var sourceMap
+                );
+                return (successful, compiled, sourceMap);
+            });

            if (compilationSuccess)
            {
                ic10CompilationResult = compiled;
                ic10SourceMap = sourceMap;
-                UpdateIc10Formatter();
+                UpdateIc10Content(Ic10Editor);
            }
        }
        catch (OperationCanceledException) { }
@@ -196,9 +214,24 @@ public class SlangFormatter : ICodeFormatter
        }
    }

+    /// <summary>
+    /// Updates the underlying code in the IC10 Editor, after which will call `UpdateIc10Formatter` to
+    /// update highlighting of relavent fields.
+    /// </summary>
+    private void UpdateIc10Content(Editor editor)
+    {
+        editor.ResetCode(ic10CompilationResult);
+        UpdateIc10Formatter();
+    }
+
+    // This runs on the main thread. This function ONLY updates the highlighting of the IC10 code.
+    // If you need to update the code in the editor itself, you should use `UpdateIc10Content`.
    private void UpdateIc10Formatter()
    {
-        iC10CodeFormatter.Editor = Editor;
+        // Bail if our backing field is null. We don't want to set the field in this function. It
+        // runs way too much and we might not even have source code to use.
+        if (__Ic10Editor == null)
+            return;
        var caretPos = Editor.CaretPos.Line;

        // get the slang sourceMap at the current editor line
@@ -206,44 +239,37 @@ public class SlangFormatter : ICodeFormatter
            entry.SlangSource.StartLine == caretPos || entry.SlangSource.EndLine == caretPos
        );

-        // extract the current "context" of the ic10 compilation. The current Slang source line
-        // should be directly next to the compiled IC10 source line, and we should highlight the
-        // IC10 code that directly represents the Slang source
-
-        iC10CodeFormatter.ResetCode(ic10CompilationResult);
+        Ic10Editor.ResetCode(ic10CompilationResult);

        if (lines.Count() < 1)
        {
+            Ic10Editor.Selection = new TextRange
+            {
+                End = new TextPosition { Col = 0, Line = 0 },
+                Start = new TextPosition { Col = 0, Line = 0 },
+            };
            return;
        }
        // get the total range of the IC10 source for the selected Slang line
        var max = lines.Max(line => line.Ic10Line);
        var min = lines.Min(line => line.Ic10Line);

+        Ic10Editor.CaretPos = new TextPosition { Col = 0, Line = (int)max };
+
        // highlight all the IC10 lines that are within the specified range
-        foreach (var index in Enumerable.Range((int)min, (int)(max - min) + 1))
+        Ic10Editor.Selection.Start = new TextPosition { Col = 0, Line = (int)min };
+        Ic10Editor.Selection.End = new TextPosition
        {
-            var lineText = iC10CodeFormatter.Lines[index].Text;
-
-            var newLine = new StyledLine(
-                lineText,
-                [
-                    new SemanticToken
-                    {
-                        Column = 0,
-                        Length = lineText.Length,
-                        Line = index,
-                        Background = ColorIdentifier,
-                        Color = ColorFromHTML("black"),
-                    },
-                ]
-            );
-
-            iC10CodeFormatter.Lines[index] = newLine;
-        }
+            Col = Ic10Editor.Lines[(int)max].Text.Length,
+            Line = (int)max,
+        };
    }

-    // This runs on the Main Thread
+    /// <summary>
+    /// Takes diagnostics from the Rust FFI compiler and applies it as semantic tokens to the
+    /// source in this editor.
+    /// This runs on the Main Thread
+    /// </summary>
    private void ApplyDiagnostics(Dictionary<uint, IGrouping<uint, Diagnostic>> dict)
    {
        HashSet<uint> linesToRefresh;
--- a/csharp_mod/GlobalCode.cs
+++ b/csharp_mod/GlobalCode.cs
@@ -1,30 +1,24 @@
 using System;
 using System.Collections.Generic;
-using System.IO;
-using System.IO.Compression;
-using System.Text;

 namespace Slang;

 public static class GlobalCode
 {
-    public const string SLANG_REF = "#SLANG_REF:";
+    /// <summary>
+    /// This is the OLD way of handling saving / loading. This has been replaced with a native
+    /// save / load from IC10 Editor. However; this needs to remain for compatibility with
+    /// previous versions of code not compiled with 0.4.2 or later.
+    /// </summary>
    public const string SLANG_SRC = "#SLANG_SRC:";

-    // This is a Dictionary of ENCODED source code, compressed
-    // so that save file data is smaller
-    private static Dictionary<Guid, string> codeDict = new();
-
-    // This Dictionary stores the source maps for the given SLANG_REF, where
-    // the key is the IC10 line, and the value is a List of Slang ranges where that
-    // line would have come from
+    /// <summary>
+    /// This Dictionary stores the source maps for the given SLANG_REF, where
+    /// the key is the IC10 line, and the value is a List of Slang ranges where that
+    /// line would have come from
+    /// </summary>
    private static Dictionary<Guid, Dictionary<uint, List<Range>>> sourceMaps = new();

-    public static void ClearCache()
-    {
-        codeDict.Clear();
-    }
-
    public static void SetSourceMap(Guid reference, List<SourceMapEntry> sourceMapEntries)
    {
        var builtDictionary = new Dictionary<uint, List<Range>>();
@@ -72,81 +66,4 @@ public static class GlobalCode
        slangSpan = foundRange[0];
        return true;
    }
-
-    public static string GetSource(Guid reference)
-    {
-        if (!codeDict.ContainsKey(reference))
-        {
-            return string.Empty;
-        }
-
-        return DecodeSource(codeDict[reference]);
-    }
-
-    public static void SetSource(Guid reference, string source)
-    {
-        codeDict[reference] = EncodeSource(source);
-    }
-
-    public static string? GetEncoded(Guid reference)
-    {
-        if (!codeDict.ContainsKey(reference))
-            return null;
-
-        return codeDict[reference];
-    }
-
-    public static void SetEncoded(Guid reference, string encodedSource)
-    {
-        if (codeDict.ContainsKey(reference))
-        {
-            codeDict[reference] = encodedSource;
-        }
-        else
-        {
-            codeDict.Add(reference, encodedSource);
-        }
-    }
-
-    private static string EncodeSource(string source)
-    {
-        if (string.IsNullOrEmpty(source))
-        {
-            return "";
-        }
-
-        byte[] bytes = Encoding.UTF8.GetBytes(source);
-
-        using (var memoryStream = new MemoryStream())
-        {
-            using (var gzipStream = new GZipStream(memoryStream, CompressionMode.Compress))
-            {
-                gzipStream.Write(bytes, 0, bytes.Length);
-            }
-            return Convert.ToBase64String(memoryStream.ToArray());
-        }
-    }
-
-    private static string DecodeSource(string source)
-    {
-        if (string.IsNullOrEmpty(source))
-        {
-            return "";
-        }
-
-        byte[] compressedBytes = Convert.FromBase64String(source);
-
-        using (var memoryStream = new MemoryStream(compressedBytes))
-        {
-            using (var gzipStream = new GZipStream(memoryStream, CompressionMode.Decompress))
-            {
-                using (var outputStream = new MemoryStream())
-                {
-                    gzipStream.CopyTo(outputStream);
-
-                    return Encoding.UTF8.GetString(outputStream.ToArray());
-                }
-            }
-        }
-    }
 }
--- a/csharp_mod/Marshal.cs
+++ b/csharp_mod/Marshal.cs
@@ -67,7 +67,9 @@ public static class Marshal
        try
        {
            _libraryHandle = LoadLibrary(ExtractNativeLibrary(Ffi.RustLib));
+            L.Debug("Rust DLL loaded successfully. Enjoy native speed compilations!");
            CodeFormatters.RegisterFormatter("Slang", typeof(SlangFormatter), true);
+
            return true;
        }
        catch (Exception ex)
@@ -91,8 +93,13 @@ public static class Marshal

        try
        {
-            FreeLibrary(_libraryHandle);
+            CodeFormatters.RegisterFormatter("Slang", typeof(PlainTextFormatter), true);
+            if (!FreeLibrary(_libraryHandle))
+            {
+                L.Warning("Unable to free Rust library");
+            }
            _libraryHandle = IntPtr.Zero;
+            L.Debug("Rust DLL library freed");
            return true;
        }
        catch (Exception ex)
@@ -191,9 +198,9 @@ public static class Marshal

        Assembly assembly = Assembly.GetExecutingAssembly();

-        using (Stream stream = assembly.GetManifestResourceStream(libName))
+        using (Stream resourceStream = assembly.GetManifestResourceStream(libName))
        {
-            if (stream == null)
+            if (resourceStream == null)
            {
                L.Error(
                    $"{libName} not found. This means it was not embedded in the mod. Please contact the mod author!"
@@ -201,18 +208,85 @@ public static class Marshal
                return "";
            }

+            // Check if file exists and contents are identical to avoid overwriting locked files
+            if (File.Exists(destinationPath))
+            {
+                try
+                {
+                    using (
+                        FileStream fileStream = new FileStream(
+                            destinationPath,
+                            FileMode.Open,
+                            FileAccess.Read,
+                            FileShare.ReadWrite
+                        )
+                    )
+                    {
+                        if (resourceStream.Length == fileStream.Length)
+                        {
+                            if (StreamsContentsAreEqual(resourceStream, fileStream))
+                            {
+                                L.Debug(
+                                    $"DLL {libName} already exists and matches. Skipping extraction."
+                                );
+                                return destinationPath;
+                            }
+                        }
+                    }
+                }
+                catch (IOException ex)
+                {
+                    L.Warning(
+                        $"Could not verify existing {libName}, attempting overwrite. {ex.Message}"
+                    );
+                }
+            }
+
+            resourceStream.Position = 0;
+
+            // Attempt to overwrite if missing or different
            try
            {
                using (FileStream fileStream = new FileStream(destinationPath, FileMode.Create))
                {
-                    stream.CopyTo(fileStream);
+                    resourceStream.CopyTo(fileStream);
                }
                return destinationPath;
            }
            catch (IOException e)
            {
-                L.Warning($"Could not overwrite {libName} (it might be in use): {e.Message}");
-                return "";
+                // If we fail here, the file is likely locked.
+                // However, if we are here, it means the file is DIFFERENT or we couldn't read it.
+                // As a fallback for live-reload, we can try returning the path anyway
+                // assuming the existing locked file might still work.
+                L.Warning(
+                    $"Could not overwrite {libName} (it might be in use): {e.Message}. Attempting to use existing file."
+                );
+                return destinationPath;
+            }
+        }
+    }
+
+    private static bool StreamsContentsAreEqual(Stream stream1, Stream stream2)
+    {
+        const int bufferSize = 4096;
+        byte[] buffer1 = new byte[bufferSize];
+        byte[] buffer2 = new byte[bufferSize];
+
+        while (true)
+        {
+            int count1 = stream1.Read(buffer1, 0, bufferSize);
+            int count2 = stream2.Read(buffer2, 0, bufferSize);
+
+            if (count1 != count2)
+                return false;
+            if (count1 == 0)
+                return true;
+
+            for (int i = 0; i < count1; i++)
+            {
+                if (buffer1[i] != buffer2[i])
+                    return false;
            }
        }
    }
--- a/csharp_mod/Patches.cs
+++ b/csharp_mod/Patches.cs
@@ -1,355 +1,11 @@
 namespace Slang;

-using System;
-using System.Runtime.CompilerServices;
-using Assets.Scripts.Objects;
-using Assets.Scripts.Objects.Electrical;
-using Assets.Scripts.Objects.Motherboards;
 using Assets.Scripts.UI;
 using HarmonyLib;

-class LineErrorData
-{
-    public AsciiString SourceRef;
-    public uint IC10ErrorSource;
-    public string SlangErrorReference;
-    public Range SlangErrorSpan;
-
-    public LineErrorData(
-        AsciiString sourceRef,
-        uint ic10ErrorSource,
-        string slangErrorRef,
-        Range slangErrorSpan
-    )
-    {
-        this.SourceRef = sourceRef;
-        this.IC10ErrorSource = ic10ErrorSource;
-        this.SlangErrorReference = slangErrorRef;
-        this.SlangErrorSpan = slangErrorSpan;
-    }
-}
-
 [HarmonyPatch]
 public static class SlangPatches
 {
-    private static ProgrammableChipMotherboard? _currentlyEditingMotherboard;
-    private static AsciiString? _motherboardCachedCode;
-    private static Guid? _currentlyEditingGuid;
-
-    private static ConditionalWeakTable<ProgrammableChip, LineErrorData> _errorReferenceTable =
-        new();
-
-    [HarmonyPatch(
-        typeof(ProgrammableChipMotherboard),
-        nameof(ProgrammableChipMotherboard.InputFinished)
-    )]
-    [HarmonyPrefix]
-    public static void pgmb_InputFinished(ref string result)
-    {
-        _currentlyEditingMotherboard = null;
-        _motherboardCachedCode = null;
-        // guard to ensure we have valid IC10 before continuing
-        if (
-            !SlangPlugin.IsSlangSource(ref result)
-            || !Marshal.CompileFromString(result, out var compiled, out var sourceMap)
-            || string.IsNullOrEmpty(compiled)
-        )
-        {
-            return;
-        }
-
-        var thisRef = _currentlyEditingGuid ?? Guid.NewGuid();
-
-        // Ensure we cache this compiled code for later retreival.
-        GlobalCode.SetSource(thisRef, result);
-        GlobalCode.SetSourceMap(thisRef, sourceMap);
-
-        _currentlyEditingGuid = null;
-
-        // Append REF to the bottom
-        compiled += $"\n{GlobalCode.SLANG_REF}{thisRef}";
-        result = compiled;
-    }
-
-    [HarmonyPatch(typeof(ProgrammableChipMotherboard), nameof(ProgrammableChipMotherboard.OnEdit))]
-    [HarmonyPrefix]
-    public static void isc_OnEdit(ProgrammableChipMotherboard __instance)
-    {
-        _currentlyEditingMotherboard = __instance;
-        _motherboardCachedCode = __instance.GetSourceCode();
-        var sourceCode = System.Text.Encoding.UTF8.GetString(
-            System.Text.Encoding.ASCII.GetBytes(__instance.GetSourceCode())
-        );
-
-        if (string.IsNullOrEmpty(sourceCode))
-        {
-            return;
-        }
-
-        // Look for REF at the bottom
-        var tagIndex = sourceCode.LastIndexOf(GlobalCode.SLANG_REF);
-
-        if (tagIndex == -1)
-        {
-            // this is not slang managed code
-            return;
-        }
-
-        if (
-            !Guid.TryParse(
-                sourceCode.Substring(tagIndex + GlobalCode.SLANG_REF.Length).Trim(),
-                out Guid sourceRef
-            )
-        )
-        {
-            // not a valid Guid, not managed by slang
-            return;
-        }
-
-        _currentlyEditingGuid = sourceRef;
-        var slangSource = GlobalCode.GetSource(sourceRef);
-
-        if (string.IsNullOrEmpty(slangSource))
-        {
-            // Didn't find that source ref in the global code manager.
-            return;
-        }
-
-        __instance.SetSourceCode(slangSource);
-    }
-
-    private static void HandleSerialization(ref string sourceCode)
-    {
-        if (string.IsNullOrEmpty(sourceCode))
-            return;
-
-        // Check if the file ends with the Reference Tag
-        var tagIndex = sourceCode.LastIndexOf(GlobalCode.SLANG_REF);
-
-        if (tagIndex == -1)
-            return;
-
-        string guidString = sourceCode.Substring(tagIndex + GlobalCode.SLANG_REF.Length).Trim();
-
-        if (!Guid.TryParse(guidString, out Guid slangRefGuid))
-        {
-            L.Warning($"Found SLANG_REF but failed to parse GUID: {guidString}");
-            return;
-        }
-
-        var slangEncoded = GlobalCode.GetEncoded(slangRefGuid);
-
-        if (string.IsNullOrEmpty(slangEncoded))
-        {
-            L.Warning(
-                $"Could not find encoded source for ref {slangRefGuid}. Save will contain compiled IC10 only."
-            );
-            return;
-        }
-
-        // Extract the clean IC10 code (everything before the tag)
-        var cleanIc10 = sourceCode.Substring(0, tagIndex).TrimEnd();
-
-        // Append the encoded source tag to the bottom
-        sourceCode = $"{cleanIc10}\n{GlobalCode.SLANG_SRC}{slangEncoded}";
-    }
-
-    [HarmonyPatch(typeof(ProgrammableChip), nameof(ProgrammableChip.SerializeSave))]
-    [HarmonyPostfix]
-    public static void pgc_SerializeSave(ProgrammableChip __instance, ref ThingSaveData __result)
-    {
-        if (__result is not ProgrammableChipSaveData chipData)
-            return;
-
-        string code = chipData.SourceCode;
-        HandleSerialization(ref code);
-        chipData.SourceCode = code;
-    }
-
-    [HarmonyPatch(
-        typeof(ProgrammableChip),
-        nameof(ProgrammableChip.ErrorLineNumberString),
-        MethodType.Getter
-    )]
-    [HarmonyPostfix]
-    public static void pgc_ErrorLineNumberString(ProgrammableChip __instance, ref string __result)
-    {
-        if (
-            String.IsNullOrEmpty(__result)
-            || !uint.TryParse(__result.Trim(), out var ic10ErrorLineNumber)
-        )
-        {
-            return;
-        }
-
-        var sourceAscii = __instance.GetSourceCode();
-
-        if (_errorReferenceTable.TryGetValue(__instance, out var cache))
-        {
-            if (cache.SourceRef.Equals(sourceAscii) && cache.IC10ErrorSource == ic10ErrorLineNumber)
-            {
-                __result = cache.SlangErrorReference;
-                return;
-            }
-        }
-
-        var source = System.Text.Encoding.UTF8.GetString(
-            System.Text.Encoding.ASCII.GetBytes(__instance.GetSourceCode())
-        );
-
-        var slangIndex = source.LastIndexOf(GlobalCode.SLANG_REF);
-
-        if (
-            slangIndex < 0
-            || !Guid.TryParse(
-                source
-                    .Substring(
-                        source.LastIndexOf(GlobalCode.SLANG_REF) + GlobalCode.SLANG_REF.Length
-                    )
-                    .Trim(),
-                out var slangGuid
-            )
-            || !GlobalCode.GetSlangErrorLineFromICError(
-                slangGuid,
-                ic10ErrorLineNumber,
-                out var slangErrorLineNumber,
-                out var slangSpan
-            )
-        )
-        {
-            return;
-        }
-
-        L.Warning($"IC error at: {__result} -- Slang source error line: {slangErrorLineNumber}");
-        __result = slangErrorLineNumber.ToString();
-        _errorReferenceTable.Remove(__instance);
-        _errorReferenceTable.Add(
-            __instance,
-            new LineErrorData(
-                sourceAscii,
-                ic10ErrorLineNumber,
-                slangErrorLineNumber.ToString(),
-                slangSpan
-            )
-        );
-    }
-
-    [HarmonyPatch(
-        typeof(ProgrammableChip),
-        nameof(ProgrammableChip.SetSourceCode),
-        new Type[] { typeof(string) }
-    )]
-    [HarmonyPostfix]
-    public static void pgc_SetSourceCode_string(ProgrammableChip __instance, string sourceCode)
-    {
-        _errorReferenceTable.Remove(__instance);
-    }
-
-    [HarmonyPatch(
-        typeof(ProgrammableChip),
-        nameof(ProgrammableChip.SetSourceCode),
-        new Type[] { typeof(string), typeof(ICircuitHolder) }
-    )]
-    [HarmonyPostfix]
-    public static void pgc_SetSourceCode_string_parent(
-        ProgrammableChip __instance,
-        string sourceCode,
-        ICircuitHolder parent
-    )
-    {
-        _errorReferenceTable.Remove(__instance);
-    }
-
-    [HarmonyPatch(
-        typeof(ProgrammableChipMotherboard),
-        nameof(ProgrammableChipMotherboard.SerializeSave)
-    )]
-    [HarmonyPostfix]
-    public static void pgmb_SerializeSave(
-        ProgrammableChipMotherboard __instance,
-        ref ThingSaveData __result
-    )
-    {
-        if (__result is not ProgrammableChipMotherboardSaveData chipData)
-            return;
-
-        string code = chipData.SourceCode;
-        HandleSerialization(ref code);
-        chipData.SourceCode = code;
-    }
-
-    private static void HandleDeserialization(ref string sourceCode)
-    {
-        // Safety check for null/empty code
-        if (string.IsNullOrEmpty(sourceCode))
-            return;
-
-        // Check for the #SLANG_SRC: footer
-        int tagIndex = sourceCode.LastIndexOf(GlobalCode.SLANG_SRC);
-
-        // If the tag is missing, this is just a normal IC10 script. Do nothing.
-        if (tagIndex == -1)
-            return;
-
-        // Extract the Encoded Source (Base64)
-        string encodedSource = sourceCode.Substring(tagIndex + GlobalCode.SLANG_SRC.Length).Trim();
-
-        // Extract the IC10 Code (strip off the tag and the newline before it)
-        string ic10Code = sourceCode.Substring(0, tagIndex).TrimEnd();
-
-        // Generate a new Runtime GUID for this session
-        Guid runtimeGuid = Guid.NewGuid();
-
-        // Hydrate the Cache
-        GlobalCode.SetEncoded(runtimeGuid, encodedSource);
-
-        // Rewrite the SourceCode to the "Runtime" format (REF at bottom)
-        sourceCode = $"{ic10Code}\n{GlobalCode.SLANG_REF}{runtimeGuid}";
-    }
-
-    [HarmonyPatch(typeof(ProgrammableChip), nameof(ProgrammableChip.DeserializeSave))]
-    [HarmonyPrefix]
-    public static void pgc_DeserializeSave(ref ThingSaveData savedData)
-    {
-        if (savedData is not ProgrammableChipSaveData pcSaveData)
-            return;
-
-        string code = pcSaveData.SourceCode;
-        HandleDeserialization(ref code);
-        pcSaveData.SourceCode = code;
-    }
-
-    [HarmonyPatch(
-        typeof(ProgrammableChipMotherboard),
-        nameof(ProgrammableChipMotherboard.DeserializeSave)
-    )]
-    [HarmonyPrefix]
-    public static void pgmb_DeserializeSave(ref ThingSaveData savedData)
-    {
-        if (savedData is not ProgrammableChipMotherboardSaveData pcSaveData)
-            return;
-
-        string code = pcSaveData.SourceCode;
-        HandleDeserialization(ref code);
-        pcSaveData.SourceCode = code;
-    }
-
-    [HarmonyPatch(typeof(InputSourceCode), nameof(InputSourceCode.ButtonInputCancel))]
-    [HarmonyPrefix]
-    public static void isc_ButtonInputCancel()
-    {
-        if (_currentlyEditingMotherboard is null || _motherboardCachedCode is null)
-        {
-            return;
-        }
-
-        _currentlyEditingMotherboard.SetSourceCode(_motherboardCachedCode);
-
-        _currentlyEditingMotherboard = null;
-        _motherboardCachedCode = null;
-        _currentlyEditingGuid = null;
-    }
-
    [HarmonyPatch(typeof(Stationpedia), nameof(Stationpedia.Regenerate))]
    [HarmonyPostfix]
    public static void Stationpedia_Regenerate()
--- a/csharp_mod/Plugin.cs
+++ b/csharp_mod/Plugin.cs
@@ -1,7 +1,5 @@
-using System.Text.RegularExpressions;
 using BepInEx;
 using HarmonyLib;
-using LaunchPadBooster;

 namespace Slang
 {
@@ -41,45 +39,32 @@ namespace Slang
    {
        public const string PluginGuid = "com.biddydev.slang";
        public const string PluginName = "Slang";
-        public const string PluginVersion = "0.4.1";
+        public const string PluginVersion = "0.4.7";

-        public static Mod MOD = new Mod(PluginName, PluginVersion);
+        private static Harmony? _harmony;

-        private Harmony? _harmony;
-
-        private static Regex? _slangSourceCheck = null;
-
-        private static Regex SlangSourceCheck
-        {
-            get
-            {
-                if (_slangSourceCheck is null)
-                {
-                    _slangSourceCheck = new Regex(@"[;{}()]|\b(let|fn|device)\b|\/\/");
-                }
-
-                return _slangSourceCheck;
-            }
-        }
-
-        public static bool IsSlangSource(ref string input)
-        {
-            return SlangSourceCheck.IsMatch(input);
-        }
-
-        private void Awake()
+        public void Awake()
        {
            L.SetLogger(Logger);
-            this._harmony = new Harmony(PluginGuid);
+            _harmony = new Harmony(PluginGuid);

            // If we failed to load the compiler, bail from the rest of the patches. It won't matter,
            // as the compiler itself has failed to load.
            if (!Marshal.Init())
            {
+                L.Error("Marshal failed to init");
                return;
            }

-            this._harmony.PatchAll();
+            _harmony.PatchAll();
+            L.Debug("Ran Harmony patches");
+        }
+
+        public void OnDestroy()
+        {
+            Marshal.Destroy();
+            _harmony?.UnpatchSelf();
+            L.Debug("Cleaned up Harmony patches");
        }
    }
 }
--- a/csharp_mod/stationeersSlang.csproj
+++ b/csharp_mod/stationeersSlang.csproj
@@ -5,7 +5,7 @@
    <Nullable>enable</Nullable>
    <AssemblyName>StationeersSlang</AssemblyName>
    <Description>Slang Compiler Bridge</Description>
-    <Version>0.4.0</Version>
+    <Version>0.4.2</Version>
    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
    <LangVersion>latest</LangVersion>
  </PropertyGroup>
--- a/docs/builtins.md
+++ b/docs/builtins.md
@@ -0,0 +1,302 @@
+# Built-in Functions
+
+<!--toc:start-->
+
+- [Built-in Functions](#built-in-functions)
+  - [System Functions](#system-functions)
+    - [`yield()`](#yield)
+    - [`sleep(ticks)`](#sleepticks)
+    - [`hash(prefabName)`](#hashprefabname)
+  - [Device I/O Functions](#device-io-functions)
+    - [Reading from Devices](#reading-from-devices)
+      - [Load from device](#load-from-device)
+      - [Load From Device Batched](#load-from-device-batched)
+      - [Load From Device Batched Named](#load-from-device-batched-named)
+      - [Load Slot](#load-slot)
+      - [Load Reagent](#load-reagent)
+    - [Writing to Devices](#writing-to-devices)
+      - [Set On Device](#set-on-device)
+      - [Set On Device Batched](#set-on-device-batched)
+      - [Set On Device Batched Named](#set-on-device-batched-named)
+      - [Set Slot](#set-slot)
+  - [Math Functions](#math-functions)
+    - [Trigonometric Functions](#trigonometric-functions)
+      - [Trig Example](#trig-example)
+    - [Rounding Functions](#rounding-functions)
+      - [Rounding Example](#rounding-example)
+    - [Other Math Functions](#other-math-functions)
+      - [Math Example](#math-example)
+  - [See Also](#see-also)
+  <!--toc:end-->
+
+Slang provides built-in functions for device I/O and mathematical operations.
+These map directly to IC10 instructions.
+
+## System Functions
+
+### `yield()`
+
+Pauses execution for exactly one game tick.
+
+```rust
+yield();
+```
+
+**IC10:** `yield`
+
+---
+
+### `sleep(ticks)`
+
+Pauses execution for the specified number of ticks.
+
+```rust
+sleep(10);  // Sleep for 10 ticks
+```
+
+**IC10:** `sleep ticks`
+
+---
+
+### `hash(prefabName)`
+
+Computes the in-game hash for a prefab name. The hash is computed at compile
+time and no runtime code is generated.
+
+```rust
+const AC_HASH = hash("StructureAirConditioner");
+```
+
+**Note:** This is different from IC10's `hash` instruction, which computes the
+hash at runtime.
+
+```rust
+setBatched(AC_HASH, "On", 0);
+```
+
+**IC10:** `sb -2087593337 On 0` (no hash computation at runtime)
+
+---
+
+## Device I/O Functions
+
+### Reading from Devices
+
+#### Load from device
+
+`load(device, property)` / `l(device, property)`
+
+Loads a property value from a device:
+
+```rust
+let temp = load(sensor, "Temperature");
+let temp = l(sensor, "Temperature");
+
+// Preferred: use dot notation
+let temp = sensor.Temperature;
+```
+
+**IC10:** `l r? d? var`
+
+---
+
+#### Load From Device Batched
+
+`loadBatched(deviceHash, property, batchMode)` / `lb(...)`
+
+Loads a property from all devices matching a hash, aggregated by batch mode:
+
+```rust
+const SENSOR = hash("StructureGasSensor");
+let avgTemp = loadBatched(SENSOR, "Temperature", "Average");
+let maxTemp = lb(SENSOR, "Temperature", "Maximum");
+```
+
+**Batch Modes:** `"Average"`, `"Sum"`, `"Minimum"`, `"Maximum"`
+
+**IC10:** `lb r? deviceHash logicType batchMode`
+
+---
+
+#### Load From Device Batched Named
+
+`loadBatchedNamed(deviceHash, nameHash, property, batchMode)` / `lbn(...)`
+
+Loads a property from devices matching both device hash and name hash:
+
+```rust
+const SENSOR_HASH = hash("StructureGasSensor");
+const SENSOR_NAME_HASH = hash("Outdoor Gas Sensor");
+let avgTemp = loadBatchedNamed(SENSOR_HASH, SENSOR_NAME_HASH, "Temperature", "Average");
+let maxTemp = lbn(SENSOR_HASH, SENSOR_NAME_HASH, "Temperature", "Maximum");
+```
+
+**IC10:** `lbn r? deviceHash nameHash logicType batchMode`
+
+**Note:** This function is useful when a script interfaces with a lot of
+devices, as it allows for arbitrary device access without limited to the 6 `dx` pins.
+
+---
+
+#### Load Slot
+
+`loadSlot(device, slotIndex, property)` / `ls(...)`
+
+Loads a slot property from a device:
+
+```rust
+let occupied = loadSlot(sorter, 0, "Occupied");
+let occupied = ls(sorter, 0, "Occupied");
+```
+
+**IC10:** `ls r? d? slotIndex logicSlotType`
+
+---
+
+#### Load Reagent
+
+`loadReagent(device, reagentMode, reagentHash)` / `lr(...)`
+
+Loads reagent information from a device:
+
+```rust
+let amount = loadReagent(furnace, "Contents", reagentHash);
+let amount = lr(furnace, "Contents", reagentHash);
+```
+
+**IC10:** `lr r? d? reagentMode reagentHash`
+
+---
+
+### Writing to Devices
+
+#### Set On Device
+
+`set(device, property, value)` / `s(...)`
+
+Sets a property on a device:
+
+```rust
+set(valve, "On", true);
+s(valve, "On", true);
+
+// Preferred: use dot notation
+valve.On = true;
+```
+
+**IC10:** `s d? logicType r?`
+
+---
+
+#### Set On Device Batched
+
+`setBatched(deviceHash, property, value)` / `sb(...)`
+
+Sets a property on all devices matching a hash:
+
+```rust
+const LIGHT_HASH = hash("StructureWallLight");
+setBatched(LIGHT_HASH, "On", true);
+sb(LIGHT_HASH, "On", true);
+```
+
+**IC10:** `sb deviceHash logicType r?`
+
+**Note:** This function is useful when a script interfaces with a lot of devices,
+as it allows for arbitrary device access without limited to the 6 `dx` pins.
+
+---
+
+#### Set On Device Batched Named
+
+`setBatchedNamed(deviceHash, nameHash, property, value)` / `sbn(...)`
+
+Sets a property on devices matching both device hash and name hash:
+
+```rust
+const SENSOR_HASH = hash("StructureGasSensor");
+const SENSOR_NAME_HASH = hash("Outdoor Gas Sensor");
+setBatchedNamed(SENSOR_HASH, SENSOR_NAME_HASH, "On", true);
+sbn(SENSOR_HASH, SENSOR_NAME_HASH, "On", true);
+```
+
+**IC10:** `sbn deviceHash nameHash logicType r?`
+
+---
+
+#### Set Slot
+
+`setSlot(device, slotIndex, property, value)` / `ss(...)`
+
+Sets a slot property on a device:
+
+```rust
+setSlot(sorter, 0, "Open", true);
+ss(sorter, 0, "Open", true);
+```
+
+**IC10:** `ss d? slotIndex logicSlotType r?`
+
+---
+
+## Math Functions
+
+All math functions accept numbers, variables, or expressions as arguments.
+
+### Trigonometric Functions
+
+| Function      | Description                  | IC10    |
+| ------------- | ---------------------------- | ------- |
+| `sin(x)`      | Sine of angle in radians     | `sin`   |
+| `cos(x)`      | Cosine of angle in radians   | `cos`   |
+| `tan(x)`      | Tangent of angle in radians  | `tan`   |
+| `asin(x)`     | Arc sine, returns radians    | `asin`  |
+| `acos(x)`     | Arc cosine, returns radians  | `acos`  |
+| `atan(x)`     | Arc tangent, returns radians | `atan`  |
+| `atan2(y, x)` | Two-argument arc tangent     | `atan2` |
+
+#### Trig Example
+
+```rust
+let angle = atan2(y, x);
+let sineValue = sin(angle);
+```
+
+### Rounding Functions
+
+| Function   | Description                   | IC10    |
+| ---------- | ----------------------------- | ------- |
+| `ceil(x)`  | Round up to nearest integer   | `ceil`  |
+| `floor(x)` | Round down to nearest integer | `floor` |
+| `trunc(x)` | Remove decimal portion        | `trunc` |
+| `abs(x)`   | Absolute value                | `abs`   |
+
+#### Rounding Example
+
+```rust
+let rounded = floor(3.7);  // 3
+let positive = abs(-5);    // 5
+```
+
+### Other Math Functions
+
+| Function    | Description                   | IC10   |
+| ----------- | ----------------------------- | ------ |
+| `sqrt(x)`   | Square root                   | `sqrt` |
+| `log(x)`    | Natural logarithm             | `log`  |
+| `max(a, b)` | Maximum of two values         | `max`  |
+| `min(a, b)` | Minimum of two values         | `min`  |
+| `rand()`    | Random number between 0 and 1 | `rand` |
+
+#### Math Example
+
+```rust
+let root = sqrt(16);        // 4
+let bigger = max(a, b);
+let randomVal = rand();
+```
+
+## See Also
+
+- [Language Reference](language-reference.md) — Complete syntax guide
+- [Examples](examples.md) — Real-world code samples
--- a/docs/examples.md
+++ b/docs/examples.md
@@ -0,0 +1,254 @@
+# Examples
+
+Real-world Slang programs demonstrating common patterns.
+
+## Temperature Control
+
+Basic thermostat that controls an air conditioner based on room temperature:
+
+```rust
+device ac = "db";
+device roomGasSensor = "d0";
+
+const TARGET_TEMP = 22c;
+const HYSTERESIS = 1;
+
+loop {
+    yield();
+    let temp = roomGasSensor.Temperature;
+
+    if (temp > TARGET_TEMP + HYSTERESIS) {
+        ac.On = true;
+    } else if (temp < TARGET_TEMP - HYSTERESIS) {
+        ac.On = false;
+    }
+}
+```
+
+**Note:** The IC10 chip is assumed to be inserted in the air conditioner's IC slot.
+
+---
+
+## Two-Axis Solar Panel Tracking
+
+Handles two-axis solar panel tracking based on the sun's position:
+
+```rust
+device sensor = "d0";
+
+const H_PANELS = hash("StructureSolarPanelDual");
+
+loop {
+    setBatched(H_PANELS, "Horizontal", sensor.Horizontal);
+    setBatched(H_PANELS, "Vertical", sensor.Vertical + 90);
+    yield();
+}
+```
+
+**Note:** Assumes the daylight sensor is mounted with its port looking 90
+degrees east of the solar panel's data port, an offset can be added on the
+horizontal angle if needed.
+
+---
+
+## Day/Night Lighting
+
+Controls grow lights during the day and ambient lights at night:
+
+```rust
+device greenhouseSensor = "d0";
+
+const daylightSensor = hash("StructureDaylightSensor");
+const growLight = hash("StructureGrowLight");
+const wallLight = hash("StructureLightLong");
+
+loop {
+    yield();
+    let solarAngle = lb(daylightSensor, "SolarAngle", "Average");
+    let isDaylight = solarAngle < 90;
+
+    sb(growLight, "On", isDaylight);
+    sb(wallLight, "On", !isDaylight);
+}
+```
+
+---
+
+## Pressure Relief Valve
+
+Controls a volume pump based on pressure readings for emergency pressure relief:
+
+```rust
+device volumePump = "d0";
+device pipeSensor = "d1";
+
+const MAX_PRESSURE = 10_000;
+const R = 8.314;
+
+loop {
+    yield();
+
+    let pressure = pipeSensor.Pressure;
+
+    if (pressure > MAX_PRESSURE) {
+        // Use PV=nRT to calculate the amount of mols we need to move
+        // n = PV / RT
+        let molsToMove = (pressure - MAX_PRESSURE) *
+          pipeSensor.Volume / (R * pipeSensor.Temperature);
+
+        // V = nRT / P
+        let setting = molsToMove * R * pipeSensor.Temperature / pressure;
+        volumePump.Setting = setting;
+        volumePump.On = true;
+    } else {
+        volumePump.On = false;
+    }
+}
+```
+
+---
+
+## Greenhouse Environment Controller
+
+Complete greenhouse control with pressure, temperature, and lighting:
+
+```rust
+device self = "db";
+device emergencyRelief = "d0";
+device greenhouseSensor = "d1";
+device recycleValve = "d2";
+
+const MAX_INTERIOR_PRESSURE = 80;
+const MAX_INTERIOR_TEMP = 28c;
+const MIN_INTERIOR_PRESSURE = 75;
+const MIN_INTERIOR_TEMP = 25c;
+const daylightSensor = 1076425094;
+const growLight = hash("StructureGrowLight");
+const wallLight = hash("StructureLightLong");
+const lightRound = hash("StructureLightRound");
+
+let shouldPurge = false;
+
+loop {
+    yield();
+    let interiorPress = greenhouseSensor.Pressure;
+    let interiorTemp = greenhouseSensor.Temperature;
+
+    shouldPurge = (
+        interiorPress > MAX_INTERIOR_PRESSURE ||
+        interiorTemp > MAX_INTERIOR_TEMP
+    ) || shouldPurge;
+
+    emergencyRelief.On = shouldPurge;
+    recycleValve.On = !shouldPurge;
+
+    if (
+        shouldPurge && (
+          interiorPress < MIN_INTERIOR_PRESSURE &&
+          interiorTemp < MIN_INTERIOR_TEMP
+          )
+        ) {
+        shouldPurge = false;
+    }
+
+    let solarAngle = lb(daylightSensor, "SolarAngle", "Average");
+    let isDaylight = solarAngle < 90;
+
+    sb(growLight, "On", isDaylight);
+    sb(wallLight, "On", !isDaylight);
+    sb(lightRound, "On", !isDaylight);
+}
+```
+
+---
+
+## Advanced Furnace Pressure Control
+
+Automates multi-furnace pump control based on dial setting for pressure target:
+
+```rust
+const FURNACE1 = 1234;
+const DIAL1 = 1123;
+const ANALYZER1 = 1223;
+
+const FURNACE2 = 1235;
+const DIAL2 = 1124;
+const ANALYZER2 = 1224;
+
+const FURNACE3 = 1236;
+const DIAL3 = 1124;
+const ANALYZER3 = 1225;
+
+const R = 8.314;
+
+fn handleFurnace(furnace, dial, analyzer) {
+    let pressure = furnace.Pressure;
+    let targetPressure = max(dial.Setting, 0.1) * 1000;
+
+    if (abs(targetPressure - pressure) <= 0.1) {
+        furnace.On = false;
+        return;
+    }
+
+    let molsToMove = max(furnace.TotalMoles, 1) * (
+      (targetPressure / pressure) - 1
+    );
+
+    // V = nRT / P
+    if (molsToMove > 0) {
+        // Calculate volume required
+        if (analyzer.Pressure == 0) {
+            // No more gas to add
+            furnace.On = false;
+            return;
+        }
+        let volume = molsToMove * R * analyzer.Temperature / analyzer.Pressure;
+
+        furnace.On = true;
+        furnace.SettingOutput = 0;
+        furnace.SettingInput = volume;
+
+        return;
+    }
+
+    // Calculate volume required
+    let volume = (-molsToMove) * R * furnace.Temperature / pressure;
+
+    furnace.On = true;
+    furnace.SettingInput = 0;
+    furnace.SettingOutput = volume;
+
+    return;
+}
+
+loop {
+    yield();
+
+    handleFurnace(FURNACE1, DIAL1, ANALYZER1);
+    handleFurnace(FURNACE2, DIAL2, ANALYZER2);
+    handleFurnace(FURNACE3, DIAL3, ANALYZER3);
+}
+```
+
+**Note:** This example does not handle edge cases such as insufficient gas in
+the input network or overfilling the furnace/pipe network.
+
+---
+
+## Common Patterns
+
+### Waiting for a Condition
+
+```rust
+fn waitForDeviceToTurnOff(device) {
+    while (device.On) {
+        yield();
+    }
+}
+```
+
+## See Also
+
+- [Getting Started](getting-started.md) — First steps with Slang
+- [Language Reference](language-reference.md) — Complete syntax guide
+- [Built-in Functions](builtins.md) — System calls and math functions
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@@ -0,0 +1,99 @@
+# Getting Started
+
+<!--toc:start-->
+
+- [Getting Started](#getting-started)
+  - [Program Structure](#program-structure)
+  - [The `yield()` Function](#the-yield-function)
+  - [Your First Program](#your-first-program)
+    - [Explanation](#explanation)
+  - [Comments](#comments)
+  - [See Also](#see-also)
+  <!--toc:end-->
+
+This guide covers the basics of writing your first Slang program.
+
+## Program Structure
+
+A Slang program consists of top-level declarations and a main loop:
+
+```rust
+// Device declarations
+device self = "db";
+device sensor = "d0";
+
+// Constants
+const THRESHOLD = 100;
+
+// Variables
+let counter = 0;
+
+// Main program loop
+loop {
+    yield();
+    // Your logic here
+}
+```
+
+## The `yield()` Function
+
+IC10 programs run continuously. The `yield()` function pauses execution for one
+game tick, preventing the script from consuming excessive resources.
+
+**Important:** You should always include `yield()` in your main loop unless you
+know what you're doing.
+
+```rust
+loop {
+    yield(); // Recommended!
+    // ...
+}
+```
+
+## Your First Program
+
+Here's a simple program that turns on a light when a gas sensor detects low
+pressure:
+
+```rust
+device gasSensor = "d0";
+device light = "d1";
+
+const LOW_PRESSURE = 50;
+
+loop {
+    yield();
+    light.On = gasSensor.Pressure < LOW_PRESSURE;
+}
+```
+
+### Explanation
+
+1. `device gasSensor = "d0"` — Binds the device at port `d0` to the name
+   `gasSensor`
+2. `device light = "d1"` — Binds the device at port `d1` to the name `light`
+3. `const LOW_PRESSURE = 50` — Defines a compile-time constant
+4. `loop { ... }` — Creates an infinite loop
+5. `yield()` — Pauses for one tick
+6. `light.On = gasSensor.Pressure < LOW_PRESSURE` — Reads the pressure and sets
+   the light state
+
+## Comments
+
+Slang supports single-line comments and documentation comments:
+
+```rust
+// This is a regular comment
+
+/// This is a documentation comment
+/// It can span multiple lines
+fn myFunction() {
+    // ...
+}
+```
+
+## See Also
+
+- [Language Reference](language-reference.md) — Complete syntax guide
+- [Built-in Functions](builtins.md) — Available system calls
+- [Examples](examples.md) — Real-world programs and patterns
--- a/docs/language-reference.md
+++ b/docs/language-reference.md
@@ -0,0 +1,339 @@
+# Language Reference
+
+<!--toc:start-->
+
+- [Language Reference](#language-reference)
+  - [Literals](#literals)
+    - [Numbers](#numbers)
+    - [Temperature Literals](#temperature-literals)
+    - [Booleans](#booleans)
+    - [Strings](#strings)
+  - [Variables](#variables)
+    - [`let` - Mutable Variables](#let-mutable-variables)
+    - [`const` - Constants](#const-constants)
+  - [Device Declarations](#device-declarations)
+    - [Device Property Access](#device-property-access)
+    - [Device Property Assignment](#device-property-assignment)
+  - [Operators](#operators)
+    - [Arithmetic Operators](#arithmetic-operators)
+    - [Comparison Operators](#comparison-operators)
+    - [Logical Operators](#logical-operators)
+    - [Ternary Operator](#ternary-operator)
+    - [Operator Precedence](#operator-precedence)
+  - [Control Flow](#control-flow)
+    - [`if` / `else`](#if-and-else)
+    - [`loop`](#loop)
+    - [`while`](#while)
+    - [`break`](#break)
+    - [`continue`](#continue)
+  - [Functions](#functions)
+    - [Declaration](#declaration)
+    - [Invocation](#invocation)
+    - [Return Values](#return-values)
+  - [Parentheses for Grouping](#parentheses-for-grouping)
+  - [See Also](#see-also)
+  <!--toc:end-->
+
+Complete syntax reference for the Slang programming language.
+
+## Literals
+
+### Numbers
+
+Numbers can be integers or decimals. Underscores are allowed as visual
+separators:
+
+```rust
+const integer = 42;                 // Integer
+const decimal = 3.14;               // Decimal
+const million = 1_000_000;          // Integer with separators
+const decimalSeparators = 5_000.50; // Decimal with separators
+```
+
+### Temperature Literals
+
+Append a unit suffix to specify temperature. Values are automatically converted
+to Kelvin at compile time:
+
+| Suffix | Unit       | Example |
+| ------ | ---------- | ------- |
+| `c`    | Celsius    | `20c`   |
+| `f`    | Fahrenheit | `68f`   |
+| `k`    | Kelvin     | `293k`  |
+
+```rust
+const ROOM_TEMP = 20c;       // Converts to 293.15 Kelvin
+const FREEZING  = 32f;       // Converts to 273.15 Kelvin
+const ABSOLUTE1 = 0k;        // Already in Kelvin
+const ABSOLUTE2 = 0;         // Assumed to be in Kelvin
+```
+
+### Booleans
+
+Booleans compile to integer values `1` and `0` in IC10.
+
+```rust
+device ac = "d0";
+
+ac.Mode = false;
+ac.On = true;
+```
+
+### Strings
+
+Strings use double or single quotes. They are primarily used for prefab and
+name hashes.
+
+```rust
+const AC_HASH = hash("StructureAirConditioner");
+const AC_NAME_HASH = hash("Greenhouse Air Conditioner");
+```
+
+## Variables
+
+### `let` Mutable Variables
+
+Declares a variable that can be reassigned:
+
+```rust
+let counter = 0;
+// ...
+counter = counter + 1;
+```
+
+### `const` Constants
+
+Declares a compile-time constant. Constants are inlined and do not consume
+registers:
+
+```rust
+const MAX_PRESSURE = 10_000;
+const DOOR_HASH = hash("StructureCompositeDoor");
+```
+
+Constants support the `hash()` function for compile-time hash computation.
+
+## Device Declarations
+
+The `device` keyword binds a device port or reference ID to a named variable:
+
+```rust
+device self = "db";   // IC housing, or device the IC is plugged into (eg. an AC)
+device sensor = "d0"; // Device at port d0
+device valve = "d1";  // Device at port d1
+device ac1 = "$3FC";  // Device with reference ID $3FC (hexadecimal 1020)
+device ac2 = "1020";  // Device with reference ID 1020 (decimal)
+```
+
+**Note:** Reference IDs can be found in-game using the Configuration cartridge.
+
+### Device Property Access
+
+Read device properties using dot notation:
+
+```rust
+let temp = sensor.Temperature;
+let pressure = sensor.Pressure;
+let isOn = valve.On;
+```
+
+### Device Property Assignment
+
+Write to device properties using dot notation:
+
+```rust
+valve.On = true;
+valve.Setting = 100;
+```
+
+## Operators
+
+### Arithmetic Operators
+
+| Operator | Description    | Example  |
+| -------- | -------------- | -------- |
+| `+`      | Addition       | `a + b`  |
+| `-`      | Subtraction    | `a - b`  |
+| `*`      | Multiplication | `a * b`  |
+| `/`      | Division       | `a / b`  |
+| `%`      | Modulo         | `a % b`  |
+| `**`     | Exponentiation | `a ** b` |
+| `-`      | Negation       | `-a`     |
+
+### Comparison Operators
+
+| Operator | Description           | Example  |
+| -------- | --------------------- | -------- |
+| `==`     | Equal                 | `a == b` |
+| `!=`     | Not equal             | `a != b` |
+| `<`      | Less than             | `a < b`  |
+| `>`      | Greater than          | `a > b`  |
+| `<=`     | Less than or equal    | `a <= b` |
+| `>=`     | Greater than or equal | `a >= b` |
+
+### Logical Operators
+
+| Operator | Description | Example    |
+| -------- | ----------- | ---------- |
+| `&&`     | Logical AND | `a && b`   |
+| `\|\|`   | Logical OR  | `a \|\| b` |
+| `!`      | Logical NOT | `!a`       |
+
+### Ternary Operator
+
+Conditional expressions using `?` and `:`:
+
+```rust
+let result = condition ? valueIfTrue : valueIfFalse;
+```
+
+### Operator Precedence
+
+Operators are evaluated in the following order, from highest to lowest
+precedence:
+
+| Precedence | Operator(s)       | Description                      |
+| ---------- | ----------------- | -------------------------------- |
+| 1          | `()` `.`          | Grouping, Property access        |
+| 2          | `!` `-`           | Logical NOT, Negation            |
+| 3          | `**`              | Exponentiation                   |
+| 4          | `*` `/` `%`       | Multiplication, Division, Modulo |
+| 5          | `+` `-`           | Addition, Subtraction            |
+| 6          | `<` `<=` `>` `>=` | Comparison                       |
+| 7          | `==` `!=`         | Equality                         |
+| 8          | `&&`              | Logical AND                      |
+| 9          | `\|\|`            | Logical OR                       |
+| 10         | `?:`              | Ternary conditional              |
+| 11         | `=`               | Assignment                       |
+
+Use parentheses to override precedence:
+
+```rust
+let result = (20 + 10) * 5;
+```
+
+## Control Flow
+
+### if and else
+
+Conditional branching:
+
+```rust
+if (tank.Temperature > 30c) {
+    ac.On = true;
+} else {
+    ac.On = false;
+}
+```
+
+### `loop`
+
+Infinite loop that runs until `break`:
+
+```rust
+loop {
+    yield();
+    // Loop body
+    if (condition) {
+        break;  // Exit the loop
+    }
+}
+```
+
+### `while`
+
+Conditional loop that runs while the condition is true:
+
+```rust
+while (counter < 100) {
+    counter = counter + 1;
+    yield();
+}
+```
+
+### `break`
+
+Exits the current loop:
+
+```rust
+loop {
+    yield();
+    // ...
+    if (done) {
+        break;
+    }
+}
+```
+
+### `continue`
+
+Skips to the next iteration of the current loop:
+
+```rust
+loop {
+    yield();
+    if (shouldSkip) {
+        continue;
+    }
+    // This code is skipped when shouldSkip is true
+    // ...
+}
+```
+
+## Functions
+
+**Warning:** Functions are currently experimental and may produce suboptimal code.
+
+### Declaration
+
+```rust
+fn functionName(arg1, arg2) {
+    // Function body
+    return arg1 + arg2;
+}
+```
+
+### Invocation
+
+```rust
+let result = functionName(10, 20);
+```
+
+### Return Values
+
+Use `return` to exit a function and optionally return a value:
+
+```rust
+fn calculate(x) {
+    if (x < 0) {
+        return 0;  // Early return
+    }
+
+    return x * 2;
+}
+
+fn doWork() {
+    // No return value
+    return;
+}
+```
+
+## Parentheses for Grouping
+
+Use parentheses to control operator precedence:
+
+```rust
+let result = (a + b) * c;
+
+let complex = (
+    temp > 0c &&
+    stress < 50 &&
+    (pressure < 10_000 || temp > 20c)
+);
+```
+
+## See Also
+
+- [Getting Started](getting-started.md) — First steps with Slang
+- [Built-in Functions](builtins.md) — System calls and math functions
+- [Examples](examples.md) — Real-world code samples
--- a/rust_compiler/Cargo.lock
+++ b/rust_compiler/Cargo.lock
@@ -930,7 +930,7 @@ checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"

 [[package]]
 name = "slang"
-version = "0.4.0"
+version = "0.4.7"
 dependencies = [
 "anyhow",
 "clap",
--- a/rust_compiler/Cargo.toml
+++ b/rust_compiler/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "slang"
-version = "0.4.1"
+version = "0.4.7"
 edition = "2021"

 [workspace]
--- a/rust_compiler/libs/compiler/src/test/binary_expression.rs
+++ b/rust_compiler/libs/compiler/src/test/binary_expression.rs
@@ -1,4 +1,3 @@
-use crate::compile;
 use anyhow::Result;
 use indoc::indoc;
 use pretty_assertions::assert_eq;
--- a/rust_compiler/libs/compiler/src/test/branching.rs
+++ b/rust_compiler/libs/compiler/src/test/branching.rs
@@ -1,4 +1,3 @@
-use crate::compile;
 use indoc::indoc;
 use pretty_assertions::assert_eq;

--- a/rust_compiler/libs/compiler/src/test/declaration_function_invocation.rs
+++ b/rust_compiler/libs/compiler/src/test/declaration_function_invocation.rs
@@ -1,4 +1,3 @@
-use crate::compile;
 use indoc::indoc;
 use pretty_assertions::assert_eq;

--- a/rust_compiler/libs/compiler/src/test/declaration_literal.rs
+++ b/rust_compiler/libs/compiler/src/test/declaration_literal.rs
@@ -168,3 +168,28 @@ fn test_const_hash_expr() -> anyhow::Result<()> {
    );
    Ok(())
 }
+
+#[test]
+fn test_declaration_is_const() -> anyhow::Result<()> {
+    let compiled = compile! {
+        debug
+        r#"
+            const MAX = 100;
+
+            let max = MAX;
+        "#
+    };
+
+    assert_eq!(
+        compiled,
+        indoc! {
+            "
+            j main
+            main:
+            move r8 100
+            "
+        }
+    );
+
+    Ok(())
+}
--- a/rust_compiler/libs/compiler/src/test/logic_expression.rs
+++ b/rust_compiler/libs/compiler/src/test/logic_expression.rs
@@ -1,4 +1,3 @@
-use crate::compile;
 use indoc::indoc;
 use pretty_assertions::assert_eq;

--- a/rust_compiler/libs/compiler/src/test/loops.rs
+++ b/rust_compiler/libs/compiler/src/test/loops.rs
@@ -1,4 +1,3 @@
-use crate::compile;
 use indoc::indoc;
 use pretty_assertions::assert_eq;

--- a/rust_compiler/libs/compiler/src/test/math_syscall.rs
+++ b/rust_compiler/libs/compiler/src/test/math_syscall.rs
@@ -1,4 +1,3 @@
-use crate::compile;
 use anyhow::Result;
 use indoc::indoc;
 use pretty_assertions::assert_eq;
--- a/rust_compiler/libs/compiler/src/test/mod.rs
+++ b/rust_compiler/libs/compiler/src/test/mod.rs
@@ -47,3 +47,4 @@ mod logic_expression;
 mod loops;
 mod math_syscall;
 mod syscall;
+mod tuple_literals;
--- a/rust_compiler/libs/compiler/src/test/syscall.rs
+++ b/rust_compiler/libs/compiler/src/test/syscall.rs
@@ -1,4 +1,3 @@
-use crate::compile;
 use indoc::indoc;
 use pretty_assertions::assert_eq;

--- a/rust_compiler/libs/compiler/src/test/tuple_literals.rs
+++ b/rust_compiler/libs/compiler/src/test/tuple_literals.rs
@@ -0,0 +1,539 @@
+#[cfg(test)]
+mod test {
+    use indoc::indoc;
+    use pretty_assertions::assert_eq;
+
+    #[test]
+    fn test_tuple_literal_declaration() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            let (x, y) = (1, 2);
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                main:
+                move r8 1
+                move r9 2
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_literal_declaration_with_underscore() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            let (x, _) = (1, 2);
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                main:
+                move r8 1
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_literal_assignment() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            let x = 0;
+            let y = 0;
+            (x, y) = (5, 10);
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                main:
+                move r8 0
+                move r9 0
+                move r8 5
+                move r9 10
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_literal_with_variables() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            let a = 42;
+            let b = 99;
+            let (x, y) = (a, b);
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                main:
+                move r8 42
+                move r9 99
+                move r10 r8
+                move r11 r9
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_literal_three_elements() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            let (x, y, z) = (1, 2, 3);
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                main:
+                move r8 1
+                move r9 2
+                move r10 3
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_literal_assignment_with_underscore() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            let i = 0;
+            let x = 123;
+            (i, _) = (456, 789);
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                main:
+                move r8 0
+                move r9 123
+                move r8 456
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_return_simple() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn getPair() {
+                return (10, 20);
+            };
+            let (x, y) = getPair();
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                getPair:
+                move r15 sp
+                push ra
+                push 10
+                push 20
+                move r15 1
+                sub r0 sp 3
+                get ra db r0
+                j ra
+                main:
+                jal getPair
+                pop r9
+                pop r8
+                move sp r15
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_return_with_underscore() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn getPair() {
+                return (5, 15);
+            };
+            let (x, _) = getPair();
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                getPair:
+                move r15 sp
+                push ra
+                push 5
+                push 15
+                move r15 1
+                sub r0 sp 3
+                get ra db r0
+                j ra
+                main:
+                jal getPair
+                pop r0
+                pop r8
+                move sp r15
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_return_three_elements() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn getTriple() {
+                return (1, 2, 3);
+            };
+            let (a, b, c) = getTriple();
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                getTriple:
+                move r15 sp
+                push ra
+                push 1
+                push 2
+                push 3
+                move r15 1
+                sub r0 sp 4
+                get ra db r0
+                j ra
+                main:
+                jal getTriple
+                pop r10
+                pop r9
+                pop r8
+                move sp r15
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_return_assignment() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn getPair() {
+                return (42, 84);
+            };
+            let i = 1;
+            let j = 2;
+            (i, j) = getPair();
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                getPair:
+                move r15 sp
+                push ra
+                push 42
+                push 84
+                move r15 1
+                sub r0 sp 3
+                get ra db r0
+                j ra
+                main:
+                move r8 1
+                move r9 2
+                jal getPair
+                pop r9
+                pop r8
+                move sp r15
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_return_mismatch() -> anyhow::Result<()> {
+        let errors = compile!(
+            result
+            r#"
+            fn doSomething() {
+                return (1, 2, 3);
+            };
+            let (x, y) = doSomething();
+            "#
+        );
+
+        // Should have exactly one error about tuple size mismatch
+        assert_eq!(errors.len(), 1);
+
+        // Check for the specific TupleSizeMismatch error
+        match &errors[0] {
+            crate::Error::TupleSizeMismatch(func_name, expected_size, actual_count, _) => {
+                assert_eq!(func_name.as_ref(), "doSomething");
+                assert_eq!(*expected_size, 3);
+                assert_eq!(*actual_count, 2);
+            }
+            e => panic!("Expected TupleSizeMismatch error, got: {:?}", e),
+        }
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_return_called_by_non_tuple_return() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn doSomething() {
+                return (1, 2);
+            };
+            
+            fn doSomethingElse() {
+                let (x, y) = doSomething();
+                return y;
+            };
+            
+            let returnedValue = doSomethingElse();
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                doSomething:
+                move r15 sp
+                push ra
+                push 1
+                push 2
+                move r15 1
+                sub r0 sp 3
+                get ra db r0
+                j ra
+                doSomethingElse:
+                push ra
+                jal doSomething
+                pop r9
+                pop r8
+                move sp r15
+                move r15 r9
+                j __internal_L2
+                __internal_L2:
+                pop ra
+                j ra
+                main:
+                jal doSomethingElse
+                move r8 r15
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_non_tuple_return_called_by_tuple_return() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn getValue() {
+                return 42;
+            };
+            
+            fn getTuple() {
+                let x = getValue();
+                return (x, x);
+            };
+            
+            let (a, b) = getTuple();
+            "#
+        );
+
+        assert_eq!(
+            compiled,
+            indoc! {
+                "
+                j main
+                getValue:
+                push ra
+                move r15 42
+                j __internal_L1
+                __internal_L1:
+                pop ra
+                j ra
+                getTuple:
+                move r15 sp
+                push ra
+                jal getValue
+                move r8 r15
+                push r8
+                push r8
+                move r15 1
+                sub r0 sp 3
+                get ra db r0
+                j ra
+                main:
+                jal getTuple
+                pop r9
+                pop r8
+                move sp r15
+                "
+            }
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_literal_size_mismatch() -> anyhow::Result<()> {
+        let errors = compile!(
+            result
+            r#"
+            let (x, y) = (1, 2, 3);
+            "#
+        );
+
+        // Should have exactly one error about tuple size mismatch
+        assert_eq!(errors.len(), 1);
+        assert!(matches!(errors[0], crate::Error::Unknown(_, _)));
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_multiple_tuple_returns_in_function() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn getValue(x) {
+                if (x) {
+                    return (1, 2);
+                } else {
+                    return (3, 4);
+                }
+            };
+            
+            let (a, b) = getValue(1);
+            "#
+        );
+
+        println!("Generated code:\n{}", compiled);
+
+        // Both returns are 2-tuples, should compile successfully
+        assert!(compiled.contains("getValue:"));
+        assert!(compiled.contains("move r15 "));
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_tuple_return_with_expression() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn add(x, y) {
+                return (x, y);
+            };
+            
+            let (a, b) = add(5, 10);
+            "#
+        );
+
+        // Should compile - we're just passing the parameter variables through
+        assert!(compiled.contains("add:"));
+        assert!(compiled.contains("jal "));
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_nested_function_tuple_calls() -> anyhow::Result<()> {
+        let compiled = compile!(
+            debug
+            r#"
+            fn inner() {
+                return (1, 2);
+            };
+            
+            fn outer() {
+                let (x, y) = inner();
+                return (y, x);
+            };
+            
+            let (a, b) = outer();
+            "#
+        );
+
+        // Both functions return tuples
+        assert!(compiled.contains("inner:"));
+        assert!(compiled.contains("outer:"));
+
+        Ok(())
+    }
+}
--- a/rust_compiler/libs/compiler/src/v1.rs
+++ b/rust_compiler/libs/compiler/src/v1.rs
--- a/rust_compiler/libs/parser/src/lib.rs
+++ b/rust_compiler/libs/parser/src/lib.rs
@@ -441,7 +441,13 @@ impl<'a> Parser<'a> {
                ));
            }

-            TokenType::Keyword(Keyword::Let) => Some(self.spanned(|p| p.declaration())?),
+            TokenType::Keyword(Keyword::Let) => {
+                if self_matches_peek!(self, TokenType::Symbol(Symbol::LParen)) {
+                    Some(self.spanned(|p| p.tuple_declaration())?)
+                } else {
+                    Some(self.spanned(|p| p.declaration())?)
+                }
+            }

            TokenType::Keyword(Keyword::Device) => {
                let spanned_dev = self.spanned(|p| p.device())?;
@@ -561,9 +567,7 @@ impl<'a> Parser<'a> {
                })
            }

-            TokenType::Symbol(Symbol::LParen) => {
-                self.spanned(|p| p.priority())?.node.map(|node| *node)
-            }
+            TokenType::Symbol(Symbol::LParen) => self.parenthesized_or_tuple()?,

            TokenType::Symbol(Symbol::Minus) => {
                let start_span = self.current_span();
@@ -642,8 +646,8 @@ impl<'a> Parser<'a> {
                }
            }
            TokenType::Symbol(Symbol::LParen) => *self
-                .spanned(|p| p.priority())?
-                .node
+                .parenthesized_or_tuple()?
+                .map(Box::new)
                .ok_or(Error::UnexpectedEOF)?,

            TokenType::Identifier(ref id) if SysCall::is_syscall(id) => {
@@ -774,7 +778,8 @@ impl<'a> Parser<'a> {
            | Expression::Ternary(_)
            | Expression::Negation(_)
            | Expression::MemberAccess(_)
-            | Expression::MethodCall(_) => {}
+            | Expression::MethodCall(_)
+            | Expression::Tuple(_) => {}
            _ => {
                return Err(Error::InvalidSyntax(
                    self.current_span(),
@@ -1081,17 +1086,43 @@ impl<'a> Parser<'a> {
                    end_col: right.span.end_col,
                };

+                // Check if the left side is a tuple, and if so, create a TupleAssignment
+                let node = if let Expression::Tuple(tuple_expr) = &left.node {
+                    // Extract variable names from the tuple, handling underscores
+                    let mut names = Vec::new();
+                    for item in &tuple_expr.node {
+                        if let Expression::Variable(var) = &item.node {
+                            names.push(var.clone());
+                        } else {
+                            return Err(Error::InvalidSyntax(
+                                item.span,
+                                String::from("Tuple assignment can only contain variable names"),
+                            ));
+                        }
+                    }
+                    
+                    Expression::TupleAssignment(Spanned {
+                        span,
+                        node: TupleAssignmentExpression {
+                            names,
+                            value: boxed!(right),
+                        },
+                    })
+                } else {
+                    Expression::Assignment(Spanned {
+                        span,
+                        node: AssignmentExpression {
+                            assignee: boxed!(left),
+                            expression: boxed!(right),
+                        },
+                    })
+                };
+
                expressions.insert(
                    i,
                    Spanned {
                        span,
-                        node: Expression::Assignment(Spanned {
-                            span,
-                            node: AssignmentExpression {
-                                assignee: boxed!(left),
-                                expression: boxed!(right),
-                            },
-                        }),
+                        node,
                    },
                );
            }
@@ -1117,8 +1148,12 @@ impl<'a> Parser<'a> {
        expressions.pop().ok_or(Error::UnexpectedEOF)
    }

-    fn priority(&mut self) -> Result<Option<Box<Spanned<Expression<'a>>>>, Error<'a>> {
+    fn parenthesized_or_tuple(
+        &mut self,
+    ) -> Result<Option<Spanned<tree_node::Expression<'a>>>, Error<'a>> {
+        let start_span = self.current_span();
        let current_token = self.current_token.as_ref().ok_or(Error::UnexpectedEOF)?;
+
        if !token_matches!(current_token, TokenType::Symbol(Symbol::LParen)) {
            return Err(Error::UnexpectedToken(
                self.current_span(),
@@ -1127,17 +1162,113 @@ impl<'a> Parser<'a> {
        }

        self.assign_next()?;
-        let expression = self.expression()?.ok_or(Error::UnexpectedEOF)?;

-        let current_token = self.get_next()?.ok_or(Error::UnexpectedEOF)?;
-        if !token_matches!(current_token, TokenType::Symbol(Symbol::RParen)) {
-            return Err(Error::UnexpectedToken(
-                Self::token_to_span(&current_token),
-                current_token,
-            ));
+        // Handle empty tuple '()'
+        if self_matches_peek!(self, TokenType::Symbol(Symbol::RParen)) {
+            self.assign_next()?;
+            let end_span = self.current_span();
+            let span = Span {
+                start_line: start_span.start_line,
+                start_col: start_span.start_col,
+                end_line: end_span.end_line,
+                end_col: end_span.end_col,
+            };
+            return Ok(Some(Spanned {
+                span,
+                node: Expression::Tuple(Spanned { span, node: vec![] }),
+            }));
        }

-        Ok(Some(boxed!(expression)))
+        let first_expression = self.expression()?.ok_or(Error::UnexpectedEOF)?;
+
+        if self_matches_peek!(self, TokenType::Symbol(Symbol::Comma)) {
+            // It is a tuple
+            let mut items = vec![first_expression];
+            while self_matches_peek!(self, TokenType::Symbol(Symbol::Comma)) {
+                // Next toekn is a comma, we need to consume it and advance 1 more time.
+                self.assign_next()?;
+                self.assign_next()?;
+                println!("{:?}", self.current_token);
+                items.push(self.expression()?.ok_or(Error::UnexpectedEOF)?);
+            }
+
+            let next = self.get_next()?.ok_or(Error::UnexpectedEOF)?;
+            if !token_matches!(next, TokenType::Symbol(Symbol::RParen)) {
+                return Err(Error::UnexpectedToken(Self::token_to_span(&next), next));
+            }
+
+            let end_span = Self::token_to_span(&next);
+            let span = Span {
+                start_line: start_span.start_line,
+                start_col: start_span.start_col,
+                end_line: end_span.end_line,
+                end_col: end_span.end_col,
+            };
+
+            Ok(Some(Spanned {
+                span,
+                node: Expression::Tuple(Spanned { span, node: items }),
+            }))
+        } else {
+            // It is just priority
+            let next = self.get_next()?.ok_or(Error::UnexpectedEOF)?;
+            if !token_matches!(next, TokenType::Symbol(Symbol::RParen)) {
+                return Err(Error::UnexpectedToken(Self::token_to_span(&next), next));
+            }
+
+            Ok(Some(Spanned {
+                span: first_expression.span,
+                node: Expression::Priority(boxed!(first_expression)),
+            }))
+        }
+    }
+
+    fn tuple_declaration(&mut self) -> Result<Expression<'a>, Error<'a>> {
+        // 'let' is consumed before this call
+        // expect '('
+        let next = self.get_next()?.ok_or(Error::UnexpectedEOF)?;
+        if !token_matches!(next, TokenType::Symbol(Symbol::LParen)) {
+            return Err(Error::UnexpectedToken(Self::token_to_span(&next), next));
+        }
+
+        let mut names = Vec::new();
+        while !self_matches_peek!(self, TokenType::Symbol(Symbol::RParen)) {
+            let token = self.get_next()?.ok_or(Error::UnexpectedEOF)?;
+            let span = Self::token_to_span(&token);
+            if let TokenType::Identifier(id) = token.token_type {
+                names.push(Spanned { span, node: id });
+            } else {
+                return Err(Error::UnexpectedToken(span, token));
+            }
+
+            if self_matches_peek!(self, TokenType::Symbol(Symbol::Comma)) {
+                self.assign_next()?;
+            }
+        }
+        self.assign_next()?; // consume ')'
+
+        let assign = self.get_next()?.ok_or(Error::UnexpectedEOF)?;
+
+        if !token_matches!(assign, TokenType::Symbol(Symbol::Assign)) {
+            return Err(Error::UnexpectedToken(Self::token_to_span(&assign), assign));
+        }
+
+        self.assign_next()?; // Consume the `=`
+
+        let value = self.expression()?.ok_or(Error::UnexpectedEOF)?;
+
+        let semi = self.get_next()?.ok_or(Error::UnexpectedEOF)?;
+        if !token_matches!(semi, TokenType::Symbol(Symbol::Semicolon)) {
+            return Err(Error::UnexpectedToken(Self::token_to_span(&semi), semi));
+        }
+
+        Ok(Expression::TupleDeclaration(Spanned {
+            span: names.first().map(|n| n.span).unwrap_or(value.span),
+            node: TupleDeclarationExpression {
+                names,
+                value: boxed!(value),
+            },
+        }))
    }

    fn invocation(&mut self) -> Result<InvocationExpression<'a>, Error<'a>> {
--- a/rust_compiler/libs/parser/src/test/mod.rs
+++ b/rust_compiler/libs/parser/src/test/mod.rs
@@ -112,7 +112,7 @@ fn test_function_invocation() -> Result<()> {
 #[test]
 fn test_priority_expression() -> Result<()> {
    let input = r#"
-            let x = (4);
+            let x = (4 + 3);
        "#;

    let tokenizer = Tokenizer::from(input);
@@ -120,7 +120,7 @@ fn test_priority_expression() -> Result<()> {

    let expression = parser.parse()?.unwrap();

-    assert_eq!("(let x = 4)", expression.to_string());
+    assert_eq!("(let x = ((4 + 3)))", expression.to_string());

    Ok(())
 }
@@ -137,7 +137,7 @@ fn test_binary_expression() -> Result<()> {
    assert_eq!("(((45 * 2) - (15 / 5)) + (5 ** 2))", expr.to_string());

    let expr = parser!("(5 - 2) * 10;").parse()?.unwrap();
-    assert_eq!("((5 - 2) * 10)", expr.to_string());
+    assert_eq!("(((5 - 2)) * 10)", expr.to_string());

    Ok(())
 }
@@ -170,7 +170,7 @@ fn test_ternary_expression() -> Result<()> {
 fn test_complex_binary_with_ternary() -> Result<()> {
    let expr = parser!("let i = (x ? 1 : 3) * 2;").parse()?.unwrap();

-    assert_eq!("(let i = ((x ? 1 : 3) * 2))", expr.to_string());
+    assert_eq!("(let i = (((x ? 1 : 3)) * 2))", expr.to_string());

    Ok(())
 }
@@ -191,3 +191,65 @@ fn test_nested_ternary_right_associativity() -> Result<()> {
    assert_eq!("(let i = (a ? b : (c ? d : e)))", expr.to_string());
    Ok(())
 }
+
+#[test]
+fn test_tuple_declaration() -> Result<()> {
+    let expr = parser!("let (x, _) = (1, 2);").parse()?.unwrap();
+
+    assert_eq!("(let (x, _) = (1, 2))", expr.to_string());
+
+    Ok(())
+}
+#[test]
+fn test_tuple_assignment() -> Result<()> {
+    let expr = parser!("(x, y) = (1, 2);").parse()?.unwrap();
+
+    assert_eq!("((x, y) = (1, 2))", expr.to_string());
+
+    Ok(())
+}
+
+#[test]
+fn test_tuple_assignment_with_underscore() -> Result<()> {
+    let expr = parser!("(x, _) = (1, 2);").parse()?.unwrap();
+
+    assert_eq!("((x, _) = (1, 2))", expr.to_string());
+
+    Ok(())
+}
+
+#[test]
+fn test_tuple_declaration_with_function_call() -> Result<()> {
+    let expr = parser!("let (x, y) = doSomething();").parse()?.unwrap();
+
+    assert_eq!("(let (x, y) = doSomething())", expr.to_string());
+
+    Ok(())
+}
+
+#[test]
+fn test_tuple_declaration_with_function_call_with_underscore() -> Result<()> {
+    let expr = parser!("let (x, _) = doSomething();").parse()?.unwrap();
+
+    assert_eq!("(let (x, _) = doSomething())", expr.to_string());
+
+    Ok(())
+}
+
+#[test]
+fn test_tuple_assignment_with_function_call() -> Result<()> {
+    let expr = parser!("(x, y) = doSomething();").parse()?.unwrap();
+
+    assert_eq!("((x, y) = doSomething())", expr.to_string());
+
+    Ok(())
+}
+
+#[test]
+fn test_tuple_assignment_with_function_call_with_underscore() -> Result<()> {
+    let expr = parser!("(x, _) = doSomething();").parse()?.unwrap();
+
+    assert_eq!("((x, _) = doSomething())", expr.to_string());
+
+    Ok(())
+}
--- a/rust_compiler/libs/parser/src/tree_node.rs
+++ b/rust_compiler/libs/parser/src/tree_node.rs
@@ -245,6 +245,42 @@ impl<'a> std::fmt::Display for DeviceDeclarationExpression<'a> {
    }
 }

+#[derive(Debug, PartialEq, Eq)]
+pub struct TupleDeclarationExpression<'a> {
+    pub names: Vec<Spanned<Cow<'a, str>>>,
+    pub value: Box<Spanned<Expression<'a>>>,
+}
+
+impl<'a> std::fmt::Display for TupleDeclarationExpression<'a> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let names = self
+            .names
+            .iter()
+            .map(|n| n.node.to_string())
+            .collect::<Vec<_>>()
+            .join(", ");
+        write!(f, "(let ({}) = {})", names, self.value)
+    }
+}
+
+#[derive(Debug, PartialEq, Eq)]
+pub struct TupleAssignmentExpression<'a> {
+    pub names: Vec<Spanned<Cow<'a, str>>>,
+    pub value: Box<Spanned<Expression<'a>>>,
+}
+
+impl<'a> std::fmt::Display for TupleAssignmentExpression<'a> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let names = self
+            .names
+            .iter()
+            .map(|n| n.node.to_string())
+            .collect::<Vec<_>>()
+            .join(", ");
+        write!(f, "(({}) = {})", names, self.value)
+    }
+}
+
 #[derive(Debug, PartialEq, Eq)]
 pub struct IfExpression<'a> {
    pub condition: Box<Spanned<Expression<'a>>>,
@@ -348,6 +384,9 @@ pub enum Expression<'a> {
    Return(Option<Box<Spanned<Expression<'a>>>>),
    Syscall(Spanned<SysCall<'a>>),
    Ternary(Spanned<TernaryExpression<'a>>),
+    Tuple(Spanned<Vec<Spanned<Expression<'a>>>>),
+    TupleAssignment(Spanned<TupleAssignmentExpression<'a>>),
+    TupleDeclaration(Spanned<TupleDeclarationExpression<'a>>),
    Variable(Spanned<Cow<'a, str>>),
    While(Spanned<WhileExpression<'a>>),
 }
@@ -384,8 +423,20 @@ impl<'a> std::fmt::Display for Expression<'a> {
            ),
            Expression::Syscall(e) => write!(f, "{}", e),
            Expression::Ternary(e) => write!(f, "{}", e),
+            Expression::Tuple(e) => {
+                let items = e
+                    .node
+                    .iter()
+                    .map(|x| x.to_string())
+                    .collect::<Vec<_>>()
+                    .join(", ");
+                write!(f, "({})", items)
+            }
+            Expression::TupleAssignment(e) => write!(f, "{}", e),
+            Expression::TupleDeclaration(e) => write!(f, "{}", e),
            Expression::Variable(id) => write!(f, "{}", id),
            Expression::While(e) => write!(f, "{}", e),
        }
    }
 }
+
--- a/rust_compiler/libs/tokenizer/src/token.rs
+++ b/rust_compiler/libs/tokenizer/src/token.rs
@@ -115,7 +115,7 @@ macro_rules! keyword {
 }

 #[derive(Debug, PartialEq, Hash, Eq, Clone, Logos)]
-#[logos(skip r"[ \t\f]+")]
+#[logos(skip r"[ \r\t\f]+")]
 #[logos(extras = Extras)]
 #[logos(error(LexError, LexError::from_lexer))]
 pub enum TokenType<'a> {
@@ -843,3 +843,20 @@ documented! {
    }
 }

+#[cfg(test)]
+mod tests {
+    use super::TokenType;
+    use logos::Logos;
+
+    #[test]
+    fn test_windows_crlf_endings() -> anyhow::Result<()> {
+        let src = "let i = 0;\r\n";
+
+        let lexer = TokenType::lexer(src);
+
+        let tokens = lexer.collect::<Vec<_>>();
+
+        assert!(!tokens.iter().any(|res| res.is_err()));
+        Ok(())
+    }
+}
--- a/spilling.slang
+++ b/spilling.slang
@@ -1,43 +0,0 @@
-device self = "db";
-device gasSensor  = "d0";
-device atmosAnal  = "d1";
-device atmosValve = "d2";
-device atmosTank  = "d3";
-device atmosInlet = "d4";
-
-atmosInlet.Lock = true;
-atmosInlet.Mode = 1;
-atmosValve.On = false;
-atmosValve.Lock = true;
-
-let isPumping = false;
-let tempPressure = 0;
-
-loop {
-  yield();
-  let temp = gasSensor.Temperature;
-  let pres = atmosAnal.Pressure;
-  let liqV = atmosAnal.VolumeOfLiquid;
-  let tempVol = atmosAnal.Volume;
-
-  let stress = 5_000 * liqV / tempVol;
-
-  tempPressure = isPumping ? 1_000 : 10_000;
-
-  let shouldTurnOnInlet = (
-    temp > 0c &&
-    pres < tempPressure &&
-    stress < 50
-  );
-
-  isPumping = (
-    !shouldTurnOnInlet &&
-    atmosTank.Pressure < 35_000 &&
-    atmosAnal.RatioPollutant == 0 &&
-    atmosAnal.RatioLiquidPollutant == 0 &&
-    atmosAnal.Pressure > 1_000
-  );
-
-  atmosValve.On = isPumping;
-  atmosInlet.On = shouldTurnOnInlet;
-}
--- a/test.slang
+++ b/test.slang
@@ -1,72 +0,0 @@
-/// Laree script V1
-
-device self = "db";
-device larre = "d0";
-device exportChute = "d1";
-
-const TOTAL_SLOTS = 19;
-const EXPORT_CHUTE = 1;
-const START_STATION = 2;
-
-let currentIndex = 0;
-
-/// Waits for the larre to be idle before continuing
-fn waitForIdle() {
-  yield();
-  while (!larre.Idle) {
-    yield();
-  }
-}
-
-/// Instructs the Larre to go to the chute and deposit
-/// what is currently in its arm
-fn deposit() {
-  larre.Setting = EXPORT_CHUTE;
-  waitForIdle();
-  larre.Activate = true;
-  waitForIdle();
-  exportChute.Open = false;
-}
-
-/// This function is responsible for checking the plant under
-/// the larre at this index, and harvesting if applicable
-fn checkAndHarvest(currentIndex) {
-  if (currentIndex <= EXPORT_CHUTE || ls(larre, 255, "Seeding") < 1) {
-    return;
-  }
-
-  // harvest from this device
-  while (ls(larre, 255, "Mature")) {
-    yield();
-    larre.Activate = true;
-  }
-  let hasRemainingPlant = ls(larre, 255, "Occupied");
-
-  // move to the export chute
-  larre.Setting = EXPORT_CHUTE;
-  waitForIdle();
-  deposit();
-  if (hasRemainingPlant) {
-    deposit();
-  }
-
-  larre.Setting = currentIndex;
-  waitForIdle();
-
-  if (ls(larre, 0, "Occupied")) {
-    larre.Activate = true;
-  }
-  waitForIdle();
-}
-
-loop {
-  yield();
-  if (!larre.Idle) {
-    continue;
-  }
-  let newIndex = currentIndex + 1 > TOTAL_SLOTS ? START_STATION : currentIndex + 1;
-
-  checkAndHarvest(currentIndex);
-  larre.Setting = newIndex;
-  currentIndex = newIndex;
-}
Author	SHA1	Message	Date
Devin Bidwell	20f0f4b9a1	working tuple types	2025-12-30 00:58:02 -07:00
Devin Bidwell	5a88befac9	tuple return types just about implemented	2025-12-30 00:32:55 -07:00
Devin Bidwell	e94fc0f5de	Functions returning tuples somewhat working, but they clobber the popped ra	2025-12-29 23:55:00 -07:00
Devin Bidwell	b51800eb77	wip -- tuples compiling. need more work on function invocations	2025-12-29 23:17:18 -07:00
Devin Bidwell	87951ab12f	Support tuple assignment expressions and tuple assignments and declarations with function invocations	2025-12-29 22:33:16 -07:00
Devin Bidwell	00b0d4df26	Create new tuple expression types	2025-12-29 22:17:19 -07:00
dbidwell	6ca53e8959	Merge pull request 'Added support for CRLF windows line endings' (#11 ) from 41-support-windows-crlf-line-endings into master All checks were successful CI/CD Pipeline / test (push) Successful in 33s Details CI/CD Pipeline / build (push) Successful in 1m42s Details CI/CD Pipeline / release (push) Successful in 5s Details Reviewed-on: #11	2025-12-29 12:32:59 -07:00
Devin Bidwell	8dfdad3f34	Added support for CRLF windows line endings All checks were successful CI/CD Pipeline / test (pull_request) Successful in 34s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-29 12:29:01 -07:00
dbidwell	e272737ea2	Merge pull request 'Fixed const -> let bug' (#10 ) from declaration_const_as_let into master All checks were successful CI/CD Pipeline / test (push) Successful in 32s Details CI/CD Pipeline / build (push) Successful in 1m43s Details CI/CD Pipeline / release (push) Successful in 5s Details Reviewed-on: #10	2025-12-29 02:44:50 -07:00
Devin Bidwell	f679601818	Fixed const -> let bug All checks were successful CI/CD Pipeline / test (pull_request) Successful in 33s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-29 02:31:23 -07:00
dbidwell	3ca6f97db1	Merge pull request 'IC10Editor fix' (#9 ) from live-reload into master All checks were successful CI/CD Pipeline / test (push) Successful in 33s Details CI/CD Pipeline / build (push) Successful in 1m41s Details CI/CD Pipeline / release (push) Successful in 4s Details Reviewed-on: #9	2025-12-27 22:26:50 -07:00
Devin Bidwell	34817ee111	Merge branch 'master' of ssh://git.biddydev.com:2222/dbidwell/stationeers_lang into live-reload All checks were successful CI/CD Pipeline / test (pull_request) Successful in 32s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-27 22:19:09 -07:00
dbidwell	9eef8a77b6	Merge pull request 'Update About.xml docs for the workshop' (#8 ) from documentation into master All checks were successful CI/CD Pipeline / test (push) Successful in 34s Details CI/CD Pipeline / build (push) Successful in 1m41s Details CI/CD Pipeline / release (push) Has been skipped Details Reviewed-on: #8	2025-12-27 22:19:00 -07:00
Devin Bidwell	de31851153	Fixed IC10Editor implementation bug where IC10 code would not update after clicking 'Cancel'	2025-12-27 22:18:21 -07:00
Devin Bidwell	3543b87561	wip	2025-12-27 16:03:36 -07:00
Devin Bidwell	effef64add	Update About.xml docs for the workshop All checks were successful CI/CD Pipeline / test (pull_request) Successful in 33s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-26 22:33:48 -07:00
dbidwell	794b27b8c6	Merge pull request 'documentation' (#7 ) from documentation into master All checks were successful CI/CD Pipeline / test (push) Successful in 33s Details CI/CD Pipeline / build (push) Successful in 1m42s Details CI/CD Pipeline / release (push) Has been skipped Details Reviewed-on: #7	2025-12-26 22:02:46 -07:00
Devin Bidwell	27e8987831	removed the temporary example slang scripts from the root directory All checks were successful CI/CD Pipeline / test (pull_request) Successful in 34s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-26 22:00:28 -07:00
Devin Bidwell	0fdceac22c	changed markdown tags from slang to rust	2025-12-26 21:57:11 -07:00
Devin Bidwell	85f8b136e1	Update markdown tags to use rust instead of mips	2025-12-26 21:56:21 -07:00
Devin Bidwell	c91086157a	Added documentation for various language features and in-game functions. Added example scripts	2025-12-26 21:55:36 -07:00
dbidwell	6bee591484	Merge pull request 'Added stationpedia docs back into the game patches' (#6 ) from docs-fix into master All checks were successful CI/CD Pipeline / test (push) Successful in 33s Details CI/CD Pipeline / build (push) Successful in 1m44s Details CI/CD Pipeline / release (push) Successful in 5s Details Reviewed-on: #6	2025-12-26 16:20:16 -07:00
Devin Bidwell	c3c14cec23	Added stationpedia docs back into the game patches All checks were successful CI/CD Pipeline / test (pull_request) Successful in 33s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-26 16:18:24 -07:00
dbidwell	4e885847a8	Merge pull request 'Remove MOD from Plugin.cs which fixed networking' (#5 ) from slp-removal into master All checks were successful CI/CD Pipeline / test (push) Successful in 34s Details CI/CD Pipeline / build (push) Successful in 1m43s Details CI/CD Pipeline / release (push) Successful in 5s Details Reviewed-on: #5	2025-12-24 22:28:51 -07:00
Devin Bidwell	0ca6b27a11	Remove MOD from Plugin.cs which fixed networking All checks were successful CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details CI/CD Pipeline / test (pull_request) Successful in 34s Details	2025-12-24 22:27:43 -07:00
dbidwell	9b8900d7a7	Merge pull request 'ic10editor-update' (#4 ) from ic10editor-update into master All checks were successful CI/CD Pipeline / test (push) Successful in 33s Details CI/CD Pipeline / build (push) Successful in 1m43s Details CI/CD Pipeline / release (push) Successful in 5s Details Reviewed-on: #4	2025-12-24 12:41:00 -07:00
Devin Bidwell	792bba4875	Removed unused macro imports as they are implicit All checks were successful CI/CD Pipeline / test (pull_request) Successful in 33s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-24 12:39:21 -07:00
Devin Bidwell	1c39e146fb	Clear editor selection for IC10 if no slang source maps to an IC10 source All checks were successful CI/CD Pipeline / test (pull_request) Successful in 34s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-24 12:36:33 -07:00
Devin Bidwell	47bcd0be34	Cleaned up BepInEx logging All checks were successful CI/CD Pipeline / test (pull_request) Successful in 34s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-24 12:10:11 -07:00
Devin Bidwell	445f731170	Fixed IC10 ouput window, refactored IC10 highlighting All checks were successful CI/CD Pipeline / test (pull_request) Successful in 33s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-24 12:08:17 -07:00
Devin Bidwell	c7aa30581d	Added logging around the creation of the IC10Editor tab All checks were successful CI/CD Pipeline / test (pull_request) Successful in 34s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-24 11:10:10 -07:00
Devin Bidwell	42b0b0acf9	Working saving / loading from the IC10Editor mod. Removed all patches until they can be properly re-implemented All checks were successful CI/CD Pipeline / test (pull_request) Successful in 35s Details CI/CD Pipeline / build (pull_request) Has been skipped Details CI/CD Pipeline / release (pull_request) Has been skipped Details	2025-12-24 01:24:16 -07:00
Devin Bidwell	5230c620e8	WIP -- before another refactor	2025-12-23 20:32:27 -07:00
Devin Bidwell	06a0ec28eb	Modify IC10 view logic to conform to the new IC10Editor update	2025-12-22 17:45:42 -07:00