Merge pull request #18 from dbidwell94/syscalls

More Syscalls and Optimizations

rust_compiler/Cargo.lock

@@ -252,14 +252,25 @@ name = "compiler"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "helpers",
  "indoc",
  "lsp-types",
  "parser",
  "pretty_assertions",
  "quick-error",
+ "rust_decimal",
  "tokenizer",
 ]
 
+[[package]]
+name = "crc32fast"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9481c1c90cbf2ac953f07c8d4a58aa3945c425b7185c9154d67a65e4230da511"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "diff"
 version = "0.1.13"
@@ -363,6 +374,9 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 [[package]]
 name = "helpers"
 version = "0.1.0"
+dependencies = [
+ "crc32fast",
+]
 
 [[package]]
 name = "indexmap"

rust_compiler/Cargo.toml

@@ -9,8 +9,9 @@ members = ["libs/*"]
 [workspace.dependencies]
 quick-error = "2"
 rust_decimal = "1"
-safer-ffi = { version = "0.1" }
+safer-ffi = { version = "0.1" }  # Safely share structs in memory between C# and Rust
-lsp-types = { version = "0.97" }
+lsp-types = { version = "0.97" } # Allows for LSP style reporting to the frontend
+crc32fast = "1.5"                # This is for `HASH(..)` calls to be optimized away
 
 [features]
 headers = ["safer-ffi/headers"]

rust_compiler/libs/compiler/Cargo.toml

@@ -7,7 +7,9 @@ edition = "2024"
 quick-error = { workspace = true }
 parser = { path = "../parser" }
 tokenizer = { path = "../tokenizer" }
+helpers = { path = "../helpers" }
 lsp-types = { workspace = true }
+rust_decimal = { workspace = true }
 
 [dev-dependencies]
 anyhow = { version = "1.0" }

rust_compiler/libs/compiler/src/test/binary_expression.rs

@@ -17,8 +17,7 @@ fn simple_binary_expression() -> anyhow::Result<()> {
             "
             j main
             main:
-            add r1 1 2
+            move r8 3 #i
-            move r8 r1 #i
             "
         }
     );
@@ -72,7 +71,7 @@ fn nested_binary_expressions() -> anyhow::Result<()> {
 }
 
 #[test]
-fn stress_test_negation_with_stack_spillover() -> anyhow::Result<()> {
+fn stress_test_constant_folding() -> anyhow::Result<()> {
     let compiled = compile! {
         debug
         "
@@ -86,12 +85,35 @@ fn stress_test_negation_with_stack_spillover() -> anyhow::Result<()> {
             "
             j main
             main:
-            add r1 -1 -2
+            move r8 -123 #negationHell
-            add r2 -5 -6
+            "
-            mul r3 -4 r2
+        }
-            add r4 -3 r3
+    );
-            mul r5 r1 r4
+
-            move r8 r5 #negationHell
+    Ok(())
+}
+
+#[test]
+fn test_constant_folding_with_variables_mixed_in() -> anyhow::Result<()> {
+    let compiled = compile! {
+        debug
+        r#"
+        device self = "db";
+        let i = 1 - 3 * (1 + 123.4) * self.Setting + 245c;
+        "#
+    };
+
+    assert_eq!(
+        compiled,
+        indoc! {
+            "
+            j main
+            main:
+            l r1 db Setting
+            mul r2 373.2 r1
+            sub r3 1 r2
+            add r4 r3 518.15
+            move r8 r4 #i
             "
         }
     );

rust_compiler/libs/compiler/src/test/declaration_literal.rs

@@ -146,3 +146,25 @@ fn test_boolean_return() -> anyhow::Result<()> {
 
     Ok(())
 }
+
+#[test]
+fn test_const_hash_expr() -> anyhow::Result<()> {
+    let compiled = compile!(debug r#"
+        const nameHash = hash("AccessCard");
+        device self = "db";
+
+        self.Setting = nameHash;
+    "#);
+
+    assert_eq!(
+        compiled,
+        indoc! {
+        "
+            j main
+            main:
+            s db Setting -732925934
+        "
+        }
+    );
+    Ok(())
+}

rust_compiler/libs/compiler/src/test/logic_expression.rs

@@ -112,9 +112,8 @@ fn test_math_with_logic() -> anyhow::Result<()> {
             "
             j main
             main:
-            add r1 1 2
+            sgt r1 3 1
-            sgt r2 r1 1
+            move r8 r1 #logic
-            move r8 r2 #logic
             "
         }
     );

rust_compiler/libs/compiler/src/test/syscall.rs

@@ -63,7 +63,7 @@ fn test_set_on_device() -> anyhow::Result<()> {
             device airConditioner = "d0";
             let internalTemp = 20c;
 
-            setOnDevice(airConditioner, "On", internalTemp > 25c);
+            set(airConditioner, "On", internalTemp > 25c);
         "#
     };
 
@@ -88,8 +88,8 @@ fn test_set_on_device_batched() -> anyhow::Result<()> {
     let compiled = compile! {
         debug
         r#"
-        let doorHash = hash("Door");
+        const doorHash = hash("Door");
-        setOnDeviceBatched(doorHash, "Lock", true);
+        setBatched(doorHash, "Lock", true);
         "#
     };
 
@@ -99,15 +99,39 @@ fn test_set_on_device_batched() -> anyhow::Result<()> {
             r#"
             j main
             main:
-            move r15 HASH("Door") #hash_ret
+            sb 718797587 Lock 1
-            move r8 r15 #doorHash
-            sb r8 Lock 1
             "#
         }
     );
     Ok(())
 }
 
+#[test]
+fn test_set_on_device_batched_named() -> anyhow::Result<()> {
+    let compiled = compile! {
+        debug
+        r#"
+        device dev = "d0";
+        const devName = hash("test");
+
+        sbn(dev, devName, "On", 12);
+        "#
+    };
+
+    assert_eq!(
+        compiled,
+        indoc! {
+            "
+            j main
+            main:
+            sbn d0 -662733300 On 12
+            "
+        }
+    );
+
+    Ok(())
+}
+
 #[test]
 fn test_load_from_device() -> anyhow::Result<()> {
     let compiled = compile! {
@@ -115,7 +139,7 @@ fn test_load_from_device() -> anyhow::Result<()> {
         r#"
         device airCon = "d0";
 
-        let setting = loadFromDevice(airCon, "On");
+        let setting = load(airCon, "On");
         "#
     };
 
@@ -133,27 +157,3 @@ fn test_load_from_device() -> anyhow::Result<()> {
 
     Ok(())
 }
-
-#[test]
-fn test_hash() -> anyhow::Result<()> {
-    let compiled = compile! {
-        debug
-        r#"
-        let nameHash = hash("testValue");
-        "#
-    };
-
-    assert_eq!(
-        compiled,
-        indoc! {
-            r#"
-            j main
-            main:
-            move r15 HASH("testValue") #hash_ret
-            move r8 r15 #nameHash
-            "#
-        }
-    );
-
-    Ok(())
-}

rust_compiler/libs/compiler/src/v1.rs

@@ -1,13 +1,14 @@
 #![allow(clippy::result_large_err)]
 use crate::variable_manager::{self, LocationRequest, VariableLocation, VariableScope};
+use helpers::prelude::*;
 use parser::{
     Parser as ASTParser,
     sys_call::{SysCall, System},
     tree_node::{
         AssignmentExpression, BinaryExpression, BlockExpression, ConstDeclarationExpression,
         DeviceDeclarationExpression, Expression, FunctionExpression, IfExpression,
-        InvocationExpression, Literal, LiteralOrVariable, LogicalExpression, LoopExpression,
+        InvocationExpression, Literal, LiteralOr, LiteralOrVariable, LogicalExpression,
-        MemberAccessExpression, Span, Spanned, WhileExpression,
+        LoopExpression, MemberAccessExpression, Span, Spanned, WhileExpression,
     },
 };
 use quick_error::quick_error;
@@ -15,6 +16,7 @@ use std::{
     collections::HashMap,
     io::{BufWriter, Write},
 };
+use tokenizer::token::Number;
 
 macro_rules! debug {
     ($self: expr, $debug_value: expr) => {
@@ -75,6 +77,9 @@ quick_error! {
         ConstAssignment(ident: String, span: Span) {
             display("Attempted to re-assign a value to const variable `{ident}`")
         }
+        DeviceAssignment(ident: String, span: Span) {
+            display("Attempted to re-assign a value to a device const `{ident}`")
+        }
         Unknown(reason: String, span: Option<Span>) {
             display("{reason}")
         }
@@ -102,6 +107,7 @@ impl From<Error> for lsp_types::Diagnostic {
             | UnknownIdentifier(_, span)
             | InvalidDevice(_, span)
             | ConstAssignment(_, span)
+            | DeviceAssignment(_, span)
             | AgrumentMismatch(_, span) => Diagnostic {
                 range: span.into(),
                 message: value.to_string(),
@@ -346,6 +352,13 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                         temp_name: None, // User variable, do not free
                     })),
                     Err(_) => {
+                        // fallback, check devices
+                        if let Some(device) = self.devices.get(&name.node) {
+                            Ok(Some(CompilationResult {
+                                location: VariableLocation::Device(device.clone()),
+                                temp_name: None,
+                            }))
+                        } else {
                             self.errors
                                 .push(Error::UnknownIdentifier(name.node.clone(), name.span));
                             Ok(Some(CompilationResult {
@@ -355,6 +368,7 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                         }
                     }
                 }
+            }
             Expression::MemberAccess(access) => {
                 // "load" behavior (e.g. `let x = d0.On`)
                 let MemberAccessExpression { object, member } = access.node;
@@ -465,6 +479,14 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                     None,
                 ));
             }
+            VariableLocation::Device(_) => {
+                return Err(Error::Unknown(
+                    r#"Attempted to emit a variable assignent for device.
+                    This is a Compiler bug and should be reported to the developer."#
+                        .into(),
+                    None,
+                ));
+            }
         }
 
         Ok(())
@@ -557,6 +579,14 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                 let result = self.expression_binary(bin_expr, scope)?;
                 let var_loc = scope.add_variable(&name_str, LocationRequest::Persist)?;
 
+                if let CompilationResult {
+                    location: VariableLocation::Constant(Literal::Number(num)),
+                    ..
+                } = result
+                {
+                    self.emit_variable_assignment(&name_str, &var_loc, num)?;
+                    (var_loc, None)
+                } else {
                     // Move result from temp to new persistent variable
                     let result_reg = self.resolve_register(&result.location)?;
                     self.emit_variable_assignment(&name_str, &var_loc, result_reg)?;
@@ -567,6 +597,7 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                     }
                     (var_loc, None)
                 }
+            }
             Expression::Logical(log_expr) => {
                 let result = self.expression_logical(log_expr, scope)?;
                 let var_loc = scope.add_variable(&name_str, LocationRequest::Persist)?;
@@ -611,7 +642,7 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                         ))?;
                         format!("r{}", VariableScope::TEMP_STACK_REGISTER)
                     }
-                    VariableLocation::Constant(_) => unreachable!(),
+                    VariableLocation::Constant(_) | VariableLocation::Device(_) => unreachable!(),
                 };
                 self.emit_variable_assignment(&name_str, &var_loc, src_str)?;
                 (var_loc, None)
@@ -679,8 +710,27 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
             value: const_value,
         } = expr;
 
+        // check for a hash expression or a literal
+        let value = match const_value {
+            LiteralOr::Or(Spanned {
+                node:
+                    SysCall::System(System::Hash(Spanned {
+                        node: Literal::String(str_to_hash),
+                        ..
+                    })),
+                ..
+            }) => Literal::Number(Number::Integer(crc_hash_signed(&str_to_hash))),
+            LiteralOr::Or(Spanned { span, .. }) => {
+                return Err(Error::Unknown(
+                    "hash only supports string literals in this context.".into(),
+                    Some(span),
+                ));
+            }
+            LiteralOr::Literal(Spanned { node, .. }) => node,
+        };
+
         Ok(CompilationResult {
-            location: scope.define_const(const_name.node, const_value.node)?,
+            location: scope.define_const(const_name.node, value)?,
             temp_name: None,
         })
     }
@@ -735,6 +785,9 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                     VariableLocation::Constant(_) => {
                         return Err(Error::ConstAssignment(identifier.node, identifier.span));
                     }
+                    VariableLocation::Device(_) => {
+                        return Err(Error::DeviceAssignment(identifier.node, identifier.span));
+                    }
                 }
 
                 if let Some(name) = cleanup {
@@ -849,6 +902,12 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                                 VariableScope::TEMP_STACK_REGISTER
                             ))?;
                         }
+                        VariableLocation::Device(_) => {
+                            return Err(Error::Unknown(
+                                r#"Attempted to pass a device contant into a function argument. These values can be used without scope."#.into(),
+                                Some(arg.span),
+                            ));
+                        }
                     }
                 }
                 Expression::Binary(bin_expr) => {
@@ -1098,6 +1157,10 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                 "Cannot resolve a constant value to register".into(),
                 None,
             )),
+            VariableLocation::Device(_) => Err(Error::Unknown(
+                "Cannot resolve a device to a register".into(),
+                None,
+            )),
             VariableLocation::Stack(_) => Err(Error::Unknown(
                 "Cannot resolve Stack location directly to register string without context".into(),
                 None,
@@ -1122,6 +1185,9 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
             if let Literal::Boolean(b) = spanned_lit.node {
                 return Ok((if b { "1".to_string() } else { "0".to_string() }, None));
             }
+            if let Literal::String(ref s) = spanned_lit.node {
+                return Ok((s.to_string(), None));
+            }
         }
 
         // Optimization for negated literals used as operands.
@@ -1172,6 +1238,7 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                 // We return the NEW temp name to be freed.
                 Ok((temp_reg, Some(temp_name)))
             }
+            VariableLocation::Device(d) => Ok((d, None)),
         }
     }
 
@@ -1208,6 +1275,58 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
         expr: Spanned<BinaryExpression>,
         scope: &mut VariableScope<'v>,
     ) -> Result<CompilationResult, Error> {
+        fn fold_binary_expression(expr: &BinaryExpression) -> Option<Number> {
+            let (lhs, rhs) = match &expr {
+                BinaryExpression::Add(l, r)
+                | BinaryExpression::Subtract(l, r)
+                | BinaryExpression::Multiply(l, r)
+                | BinaryExpression::Divide(l, r)
+                | BinaryExpression::Exponent(l, r)
+                | BinaryExpression::Modulo(l, r) => (fold_expression(l)?, fold_expression(r)?),
+            };
+
+            match expr {
+                BinaryExpression::Add(..) => Some(lhs + rhs),
+                BinaryExpression::Subtract(..) => Some(lhs - rhs),
+                BinaryExpression::Multiply(..) => Some(lhs * rhs),
+                BinaryExpression::Divide(..) => Some(lhs / rhs), // Watch out for div by zero panics!
+                BinaryExpression::Modulo(..) => Some(lhs % rhs),
+                _ => None, // Handle Exponent separately or implement pow
+            }
+        }
+
+        fn fold_expression(expr: &Expression) -> Option<Number> {
+            match expr {
+                // 1. Base Case: It's already a number
+                Expression::Literal(lit) => match lit.node {
+                    Literal::Number(n) => Some(n),
+                    _ => None,
+                },
+
+                // 2. Handle Parentheses: Just recurse deeper
+                Expression::Priority(inner) => fold_expression(&inner.node),
+
+                // 3. Handle Negation: Recurse, then negate
+                Expression::Negation(inner) => {
+                    let val = fold_expression(&inner.node)?;
+                    Some(-val) // Requires impl Neg for Number
+                }
+
+                // 4. Handle Binary Ops: Recurse BOTH sides, then combine
+                Expression::Binary(bin) => fold_binary_expression(&bin.node),
+
+                // 5. Anything else (Variables, Function Calls) cannot be compile-time folded
+                _ => None,
+            }
+        }
+
+        if let Some(const_lit) = fold_binary_expression(&expr.node) {
+            return Ok(CompilationResult {
+                location: VariableLocation::Constant(Literal::Number(const_lit)),
+                temp_name: None,
+            });
+        };
+
         let (op_str, left_expr, right_expr) = match expr.node {
             BinaryExpression::Add(l, r) => ("add", l, r),
             BinaryExpression::Multiply(l, r) => ("mul", l, r),
@@ -1420,6 +1539,12 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                             VariableScope::TEMP_STACK_REGISTER
                         ))?;
                     }
+                    VariableLocation::Device(_) => {
+                        return Err(Error::Unknown(
+                            "You can not return a device from a function.".into(),
+                            Some(var_name.span),
+                        ));
+                    }
                 },
                 Err(_) => {
                     self.errors.push(Error::UnknownIdentifier(
@@ -1507,30 +1632,43 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
         span: Span,
         scope: &mut VariableScope<'v>,
     ) -> Result<Option<CompilationResult>, Error> {
+        macro_rules! cleanup {
+            ($($to_clean:expr),*) => {
+                $(
+                    if let Some(to_clean) = $to_clean {
+                        scope.free_temp(to_clean)?;
+                    }
+                )*
+            };
+        }
         match expr {
             System::Yield => {
                 self.write_output("yield")?;
                 Ok(None)
             }
             System::Sleep(amt) => {
-                let (var, cleanup) = self.compile_operand(*amt, scope)?;
+                let (var, var_cleanup) = self.compile_operand(*amt, scope)?;
                 self.write_output(format!("sleep {var}"))?;
-                if let Some(temp) = cleanup {
+
-                    scope.free_temp(temp)?;
+                cleanup!(var_cleanup);
-                }
 
                 Ok(None)
             }
             System::Hash(hash_arg) => {
-                let Literal::String(str_lit) = hash_arg else {
+                let Spanned {
+                    node: Literal::String(str_lit),
+                    ..
+                } = hash_arg
+                else {
                     return Err(Error::AgrumentMismatch(
                         "Arg1 expected to be a string literal.".into(),
                         span,
                     ));
                 };
 
-                let loc = VariableLocation::Persistant(VariableScope::RETURN_REGISTER);
+                let loc = VariableLocation::Constant(Literal::Number(Number::Integer(
-                self.emit_variable_assignment("hash_ret", &loc, format!(r#"HASH("{}")"#, str_lit))?;
+                    crc_hash_signed(&str_lit),
+                )));
 
                 Ok(Some(CompilationResult {
                     location: loc,
@@ -1540,7 +1678,11 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
             System::SetOnDevice(device, logic_type, variable) => {
                 let (variable, var_cleanup) = self.compile_operand(*variable, scope)?;
 
-                let LiteralOrVariable::Variable(device_spanned) = device else {
+                let Spanned {
+                    node: LiteralOrVariable::Variable(device_spanned),
+                    ..
+                } = device
+                else {
                     return Err(Error::AgrumentMismatch(
                         "Arg1 expected to be a variable".into(),
                         span,
@@ -1562,7 +1704,11 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                     .cloned()
                     .unwrap_or("d0".to_string());
 
-                let Literal::String(logic_type) = logic_type else {
+                let Spanned {
+                    node: Literal::String(logic_type),
+                    ..
+                } = logic_type
+                else {
                     return Err(Error::AgrumentMismatch(
                         "Arg2 expected to be a string".into(),
                         span,
@@ -1571,17 +1717,19 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
 
                 self.write_output(format!("s {} {} {}", device_val, logic_type, variable))?;
 
-                if let Some(temp_var) = var_cleanup {
+                cleanup!(var_cleanup);
-                    scope.free_temp(temp_var)?;
-                }
 
                 Ok(None)
             }
             System::SetOnDeviceBatched(device_hash, logic_type, variable) => {
                 let (var, var_cleanup) = self.compile_operand(*variable, scope)?;
                 let (device_hash_val, device_hash_cleanup) =
-                    self.compile_literal_or_variable(device_hash, scope)?;
+                    self.compile_literal_or_variable(device_hash.node, scope)?;
-                let Literal::String(logic_type) = logic_type else {
+                let Spanned {
+                    node: Literal::String(logic_type),
+                    ..
+                } = logic_type
+                else {
                     return Err(Error::AgrumentMismatch(
                         "Arg2 expected to be a string".into(),
                         span,
@@ -1590,18 +1738,43 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
 
                 self.write_output(format!("sb {} {} {}", device_hash_val, logic_type, var))?;
 
-                if let Some(var_cleanup) = var_cleanup {
+                cleanup!(var_cleanup, device_hash_cleanup);
-                    scope.free_temp(var_cleanup)?;
-                }
 
-                if let Some(device_cleanup) = device_hash_cleanup {
+                Ok(None)
-                    scope.free_temp(device_cleanup)?;
             }
+            System::SetOnDeviceBatchedNamed(device_hash, name_hash, logic_type, val_expr) => {
+                let (value, value_cleanup) = self.compile_operand(*val_expr, scope)?;
+                let (device_hash, device_hash_cleanup) =
+                    self.compile_literal_or_variable(device_hash.node, scope)?;
+
+                let (name_hash, name_hash_cleanup) =
+                    self.compile_literal_or_variable(name_hash.node, scope)?;
+
+                let (logic_type, logic_type_cleanup) = self.compile_literal_or_variable(
+                    LiteralOrVariable::Literal(logic_type.node),
+                    scope,
+                )?;
+
+                self.write_output(format!(
+                    "sbn {} {} {} {}",
+                    device_hash, name_hash, logic_type, value
+                ))?;
+
+                cleanup!(
+                    value_cleanup,
+                    device_hash_cleanup,
+                    name_hash_cleanup,
+                    logic_type_cleanup
+                );
 
                 Ok(None)
             }
             System::LoadFromDevice(device, logic_type) => {
-                let LiteralOrVariable::Variable(device_spanned) = device else {
+                let Spanned {
+                    node: LiteralOrVariable::Variable(device_spanned),
+                    ..
+                } = device
+                else {
                     return Err(Error::AgrumentMismatch(
                         "Arg1 expected to be a variable".into(),
                         span,
@@ -1623,7 +1796,11 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                     .cloned()
                     .unwrap_or("d0".to_string());
 
-                let Literal::String(logic_type) = logic_type else {
+                let Spanned {
+                    node: Literal::String(logic_type),
+                    ..
+                } = logic_type
+                else {
                     return Err(Error::AgrumentMismatch(
                         "Arg2 expected to be a string".into(),
                         span,
@@ -1642,11 +1819,68 @@ impl<'a, W: std::io::Write> Compiler<'a, W> {
                     temp_name: None,
                 }))
             }
+            System::LoadBatch(device_hash, logic_type, batch_mode) => {
+                let (device_hash, device_hash_cleanup) =
+                    self.compile_literal_or_variable(device_hash.node, scope)?;
+                let (logic_type, logic_type_cleanup) = self.compile_literal_or_variable(
+                    LiteralOrVariable::Literal(logic_type.node),
+                    scope,
+                )?;
+                let (batch_mode, batch_mode_cleanup) = self.compile_literal_or_variable(
+                    LiteralOrVariable::Literal(batch_mode.node),
+                    scope,
+                )?;
 
-            t => Err(Error::Unknown(
+                self.write_output(format!(
-                format!("{t:?}\n\nNot yet implemented"),
+                    "lb r{} {} {} {}",
-                Some(span),
+                    VariableScope::RETURN_REGISTER,
-            )),
+                    device_hash,
+                    logic_type,
+                    batch_mode
+                ))?;
+
+                cleanup!(device_hash_cleanup, logic_type_cleanup, batch_mode_cleanup);
+
+                Ok(Some(CompilationResult {
+                    location: VariableLocation::Persistant(VariableScope::RETURN_REGISTER),
+                    temp_name: None,
+                }))
+            }
+            System::LoadBatchNamed(device_hash, name_hash, logic_type, batch_mode) => {
+                let (device_hash, device_hash_cleanup) =
+                    self.compile_literal_or_variable(device_hash.node, scope)?;
+                let (name_hash, name_hash_cleanup) =
+                    self.compile_literal_or_variable(name_hash.node, scope)?;
+                let (logic_type, logic_type_cleanup) = self.compile_literal_or_variable(
+                    LiteralOrVariable::Literal(logic_type.node),
+                    scope,
+                )?;
+                let (batch_mode, batch_mode_cleanup) = self.compile_literal_or_variable(
+                    LiteralOrVariable::Literal(batch_mode.node),
+                    scope,
+                )?;
+
+                self.write_output(format!(
+                    "lbn r{} {} {} {} {}",
+                    VariableScope::RETURN_REGISTER,
+                    device_hash,
+                    name_hash,
+                    logic_type,
+                    batch_mode
+                ))?;
+
+                cleanup!(
+                    device_hash_cleanup,
+                    name_hash_cleanup,
+                    logic_type_cleanup,
+                    batch_mode_cleanup
+                );
+
+                Ok(Some(CompilationResult {
+                    location: VariableLocation::Persistant(VariableScope::RETURN_REGISTER),
+                    temp_name: None,
+                }))
+            }
         }
     }
 

rust_compiler/libs/compiler/src/variable_manager.rs

@@ -46,6 +46,8 @@ pub enum VariableLocation {
     Stack(u16),
     /// Represents a constant value and should be directly substituted as such.
     Constant(Literal),
+    /// Represents a device pin. This will contain the exact `d0-d5` string
+    Device(String),
 }
 
 pub struct VariableScope<'a> {

rust_compiler/libs/helpers/Cargo.toml

@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+crc32fast = { workspace = true }

rust_compiler/libs/helpers/src/helper_funcs.rs

@@ -0,0 +1,11 @@
+use crc32fast::hash as crc32_hash;
+/// This function takes an input which is meant to be hashed via the CRC32 algorithm, but it then
+/// converts the generated UNSIGNED number into it's SIGNED counterpart.
+pub fn crc_hash_signed(input: &str) -> i128 {
+    let hash = crc32_hash(input.as_bytes());
+
+    // in stationeers, crc32 is a SIGNED int.
+    let hash_value_i32 = i32::from_le_bytes(hash.to_le_bytes());
+
+    hash_value_i32 as i128
+}

rust_compiler/libs/helpers/src/lib.rs

@@ -1,3 +1,4 @@
+mod helper_funcs;
 mod macros;
 mod syscall;
 
@@ -11,5 +12,6 @@ pub trait Documentation {
 }
 
 pub mod prelude {
+    pub use super::helper_funcs::*;
     pub use super::{Documentation, documented, with_syscalls};
 }

rust_compiler/libs/helpers/src/syscall.rs

@@ -2,15 +2,16 @@
 macro_rules! with_syscalls {
     ($matcher:ident) => {
         $matcher!(
+            // Big names
             "yield",
             "sleep",
             "hash",
-            "loadFromDevice",
+            "load",
-            "loadBatchNamed",
+            "loadBatched",
-            "loadBatch",
+            "loadBatchedNamed",
-            "setOnDevice",
+            "set",
-            "setOnDeviceBatched",
+            "setBatched",
-            "setOnDeviceBatchedNamed",
+            "setBatchedNamed",
             "acos",
             "asin",
             "atan",
@@ -26,7 +27,14 @@ macro_rules! with_syscalls {
             "sin",
             "sqrt",
             "tan",
-            "trunc"
+            "trunc",
+            // Lil' names
+            "l",
+            "lb",
+            "lbn",
+            "s",
+            "sb",
+            "sbn"
         );
     };
 }

rust_compiler/libs/parser/src/lib.rs

@@ -1256,18 +1256,48 @@ impl<'a> Parser<'a> {
             ));
         }
 
-        // literal value
+        // literal or syscall, making sure the syscall is supported in hash
         self.assign_next()?;
-        let lit = self.spanned(|p| p.literal())?;
+        // cache the current token location
+        let current_token_index = self.tokenizer.loc();
+
+        if let Ok(lit) = self.spanned(|p| p.literal()) {
+            Ok(ConstDeclarationExpression {
+                name: Spanned {
+                    span: ident_span,
+                    node: ident,
+                },
+                value: LiteralOr::Literal(lit),
+            })
+        } else {
+            // we need to rewind our tokenizer to our previous location
+            self.tokenizer.seek(SeekFrom::Current(
+                self.tokenizer.loc() - current_token_index,
+            ))?;
+            let syscall = self.spanned(|p| p.syscall())?;
+
+            if !matches!(
+                syscall,
+                Spanned {
+                    node: SysCall::System(sys_call::System::Hash(_)),
+                    ..
+                }
+            ) {
+                return Err(Error::UnexpectedToken(
+                    syscall.span,
+                    self.current_token.clone().ok_or(Error::UnexpectedEOF)?,
+                ));
+            }
 
             Ok(ConstDeclarationExpression {
                 name: Spanned {
                     span: ident_span,
                     node: ident,
                 },
-            value: lit,
+                value: LiteralOr::Or(syscall),
             })
         }
+    }
 
     fn declaration(&mut self) -> Result<Expression, Error> {
         let current_token = self.current_token.as_ref().ok_or(Error::UnexpectedEOF)?;
@@ -1556,19 +1586,26 @@ impl<'a> Parser<'a> {
 
         macro_rules! literal_or_variable {
             ($iter:expr) => {
-                match $iter {
+                match &$iter {
-                    Some(expr) => match &expr.node {
+                    Some(expr) => {
-                        Expression::Literal(literal) => {
+                        let span = expr.span;
-                            LiteralOrVariable::Literal(literal.node.clone())
+                        match &expr.node {
-                        }
+                            Expression::Literal(literal) => Spanned {
-                        Expression::Variable(ident) => LiteralOrVariable::Variable(ident.clone()),
+                                span,
-                        _ => {
+                                node: LiteralOrVariable::Literal(literal.node.clone()),
-                            return Err(Error::UnexpectedToken(
-                                self.current_span(),
-                                self.current_token.clone().ok_or(Error::UnexpectedEOF)?,
-                            ))
-                        }
                             },
+                            Expression::Variable(ident) => Spanned {
+                                span,
+                                node: LiteralOrVariable::Variable(ident.clone()),
+                            },
+                            _ => {
+                                return Err(Error::InvalidSyntax(
+                                    expr.span,
+                                    "Expected a literal or variable".to_string(),
+                                ));
+                            }
+                        }
+                    }
                     _ => {
                         return Err(Error::UnexpectedToken(
                             self.current_span(),
@@ -1581,12 +1618,15 @@ impl<'a> Parser<'a> {
 
         macro_rules! get_arg {
             ($matcher: ident, $arg: expr) => {
-                match $arg {
+                match $arg.node {
-                    LiteralOrVariable::$matcher(i) => i,
+                    LiteralOrVariable::$matcher(i) => Spanned {
+                        node: i,
+                        span: $arg.span,
+                    },
                     _ => {
                         return Err(Error::InvalidSyntax(
-                            self.current_span(),
+                            $arg.span,
-                            String::from("Expected a variable"),
+                            format!("Expected a {}", stringify!($matcher).to_lowercase()),
                         ))
                     }
                 }
@@ -1611,37 +1651,48 @@ impl<'a> Parser<'a> {
                 let mut args = invocation.arguments.into_iter();
                 let lit_str = literal_or_variable!(args.next());
 
-                let LiteralOrVariable::Literal(lit_str) = lit_str else {
+                let Spanned {
-                    return Err(Error::UnexpectedToken(
+                    node: LiteralOrVariable::Literal(lit_str),
-                        self.current_span(),
+                    span,
-                        self.current_token.clone().ok_or(Error::UnexpectedEOF)?,
+                } = lit_str
+                else {
+                    return Err(Error::InvalidSyntax(
+                        lit_str.span,
+                        "Expected a string literal".to_string(),
                     ));
                 };
 
-                Ok(SysCall::System(System::Hash(lit_str)))
+                Ok(SysCall::System(System::Hash(Spanned {
+                    node: lit_str,
+                    span,
+                })))
             }
-            "loadFromDevice" => {
+            "load" | "l" => {
                 check_length(self, &invocation.arguments, 2)?;
                 let mut args = invocation.arguments.into_iter();
 
-                let device = literal_or_variable!(args.next());
+                let tmp = args.next();
+                let device = literal_or_variable!(tmp);
                 let next_arg = args.next();
 
                 let variable = match next_arg {
                     Some(expr) => match expr.node {
                         Expression::Literal(spanned_lit) => match spanned_lit.node {
-                            Literal::String(s) => s,
+                            Literal::String(s) => Spanned {
+                                node: s,
+                                span: spanned_lit.span,
+                            },
                             _ => {
-                                return Err(Error::UnexpectedToken(
+                                return Err(Error::InvalidSyntax(
-                                    self.current_span(),
+                                    spanned_lit.span,
-                                    self.current_token.clone().ok_or(Error::UnexpectedEOF)?,
+                                    "Expected a string literal".to_string(),
                                 ));
                             }
                         },
                         _ => {
-                            return Err(Error::UnexpectedToken(
+                            return Err(Error::InvalidSyntax(
-                                self.current_span(),
+                                expr.span,
-                                self.current_token.clone().ok_or(Error::UnexpectedEOF)?,
+                                "Expected a string literal".to_string(),
                             ));
                         }
                     },
@@ -1655,33 +1706,109 @@ impl<'a> Parser<'a> {
 
                 Ok(SysCall::System(sys_call::System::LoadFromDevice(
                     device,
-                    Literal::String(variable),
+                    Spanned {
+                        node: Literal::String(variable.node),
+                        span: variable.span,
+                    },
                 )))
             }
-            "setOnDevice" => {
+            "loadBatched" | "lb" => {
                 check_length(self, &invocation.arguments, 3)?;
                 let mut args = invocation.arguments.into_iter();
-                let device = literal_or_variable!(args.next());
+                let tmp = args.next();
-                let logic_type = get_arg!(Literal, literal_or_variable!(args.next()));
+                let device_hash = literal_or_variable!(tmp);
+
+                let tmp = args.next();
+                let logic_type = get_arg!(Literal, literal_or_variable!(tmp));
+
+                let tmp = args.next();
+                let batch_mode = get_arg!(Literal, literal_or_variable!(tmp));
+
+                Ok(SysCall::System(System::LoadBatch(
+                    device_hash,
+                    logic_type,
+                    batch_mode,
+                )))
+            }
+            "loadBatchedNamed" | "lbn" => {
+                check_length(self, &invocation.arguments, 4)?;
+                let mut args = invocation.arguments.into_iter();
+                let tmp = args.next();
+                let dev_hash = literal_or_variable!(tmp);
+
+                let tmp = args.next();
+                let name_hash = literal_or_variable!(tmp);
+
+                let tmp = args.next();
+                let logic_type = get_arg!(Literal, literal_or_variable!(tmp));
+
+                let tmp = args.next();
+                let batch_mode = get_arg!(Literal, literal_or_variable!(tmp));
+
+                Ok(SysCall::System(System::LoadBatchNamed(
+                    dev_hash, name_hash, logic_type, batch_mode,
+                )))
+            }
+            "set" | "s" => {
+                check_length(self, &invocation.arguments, 3)?;
+                let mut args = invocation.arguments.into_iter();
+                let tmp = args.next();
+                let device = literal_or_variable!(tmp);
+
+                let tmp = args.next();
+                let logic_type = get_arg!(Literal, literal_or_variable!(tmp));
+
                 let variable = args.next().ok_or(Error::UnexpectedEOF)?;
                 Ok(SysCall::System(sys_call::System::SetOnDevice(
                     device,
-                    Literal::String(logic_type.to_string().replace("\"", "")),
+                    Spanned {
+                        node: Literal::String(logic_type.node.to_string().replace("\"", "")),
+                        span: logic_type.span,
+                    },
                     boxed!(variable),
                 )))
             }
-            "setOnDeviceBatched" => {
+            "setBatched" | "sb" => {
                 check_length(self, &invocation.arguments, 3)?;
                 let mut args = invocation.arguments.into_iter();
-                let device_hash = literal_or_variable!(args.next());
+                let tmp = args.next();
-                let logic_type = get_arg!(Literal, literal_or_variable!(args.next()));
+                let device_hash = literal_or_variable!(tmp);
+
+                let tmp = args.next();
+                let logic_type = get_arg!(Literal, literal_or_variable!(tmp));
                 let variable = args.next().ok_or(Error::UnexpectedEOF)?;
+
                 Ok(SysCall::System(sys_call::System::SetOnDeviceBatched(
                     device_hash,
-                    Literal::String(logic_type.to_string().replace("\"", "")),
+                    Spanned {
+                        node: Literal::String(logic_type.to_string().replace("\"", "")),
+                        span: logic_type.span,
+                    },
                     boxed!(variable),
                 )))
             }
+            "setBatchedNamed" | "sbn" => {
+                check_length(self, &invocation.arguments, 4)?;
+                let mut args = invocation.arguments.into_iter();
+                let tmp = args.next();
+                let device_hash = literal_or_variable!(tmp);
+
+                let tmp = args.next();
+                let name_hash = literal_or_variable!(tmp);
+
+                let tmp = args.next();
+                let logic_type = get_arg!(Literal, literal_or_variable!(tmp));
+
+                let tmp = args.next();
+                let expr = Box::new(tmp.ok_or(Error::UnexpectedEOF)?);
+
+                Ok(SysCall::System(System::SetOnDeviceBatchedNamed(
+                    device_hash,
+                    name_hash,
+                    logic_type,
+                    expr,
+                )))
+            }
             _ => Err(Error::UnsupportedKeyword(
                 self.current_span(),
                 self.current_token.clone().ok_or(Error::UnexpectedEOF)?,

rust_compiler/libs/parser/src/sys_call.rs

@@ -142,58 +142,68 @@ documented! {
         /// ## Slang
         /// `sleep(number|var);`
         Sleep(Box<Spanned<Expression>>),
-        /// Gets the in-game hash for a specific prefab name.
+        /// Gets the in-game hash for a specific prefab name. NOTE! This call is COMPLETELY
+        /// optimized away unless you bind it to a `let` variable. If you use a `const` variable
+        /// however, the hash is correctly computed at compile time and substitued automatically.
         /// ## IC10
         /// `HASH("prefabName")`
         /// ## Slang
-        /// `HASH("prefabName");`
+        /// `hash("prefabName");`
-        Hash(Literal),
+        ///
+        /// ## Example
+        /// ```
+        /// const compDoor = hash("StructureCompositeDoor");
+        /// setOnDeviceBatched(compDoor, "Lock", true);
+        /// ```
+        Hash(Spanned<Literal>),
         /// Represents a function which loads a device variable into a register.
         /// ## IC10
         /// `l r? d? var`
         /// ## Slang
-        /// `loadFromDevice(deviceType, "LogicType");`
+        /// `load(deviceType, "LogicType");`
-        LoadFromDevice(LiteralOrVariable, Literal),
+        LoadFromDevice(Spanned<LiteralOrVariable>, Spanned<Literal>),
         /// Function which gets a LogicType from all connected network devices that match
         /// the provided device hash and name, aggregating them via a batchMode
         /// ## IC10
         /// `lbn r? deviceHash nameHash logicType batchMode`
         /// ## Slang
-        /// `loadFromDeviceBatchedNamed(deviceHash, deviceName, "LogicType", "BatchMode");`
+        /// `loadBatchedNamed(deviceHash, deviceName, "LogicType", "BatchMode");`
         LoadBatchNamed(
-            LiteralOrVariable,
+            Spanned<LiteralOrVariable>,
-            Box<Spanned<Expression>>,
+            Spanned<LiteralOrVariable>,
-            Literal,
+            Spanned<Literal>,
-            Literal,
+            Spanned<Literal>,
         ),
         /// Loads a LogicType from all connected network devices, aggregating them via a
-        /// batchMode
+        /// BatchMode
         /// ## IC10
         /// `lb r? deviceHash logicType batchMode`
         /// ## Slang
-        /// `loadFromDeviceBatched(deviceHash, "Variable", "LogicType");`
+        /// `loadBatched(deviceHash, "Variable", "LogicType");`
-        LoadBatch(LiteralOrVariable, Literal, Literal),
+        LoadBatch(Spanned<LiteralOrVariable>, Spanned<Literal>, Spanned<Literal>),
         /// Represents a function which stores a setting into a specific device.
         /// ## IC10
         /// `s d? logicType r?`
         /// ## Slang
-        /// `setOnDevice(deviceType, "Variable", (number|var));`
+        /// `set(deviceType, "Variable", (number|var));`
-        SetOnDevice(LiteralOrVariable, Literal, Box<Spanned<Expression>>),
+        SetOnDevice(Spanned<LiteralOrVariable>, Spanned<Literal>, Box<Spanned<Expression>>),
         /// Represents a function which stores a setting to all devices that match
         /// the given deviceHash
         /// ## IC10
         /// `sb deviceHash logicType r?`
-        SetOnDeviceBatched(LiteralOrVariable, Literal, Box<Spanned<Expression>>),
+        /// ## Slang
+        /// `setBatched(deviceHash, "LogicType", (number|var))`
+        SetOnDeviceBatched(Spanned<LiteralOrVariable>, Spanned<Literal>, Box<Spanned<Expression>>),
         /// Represents a function which stores a setting to all devices that match
         /// both the given deviceHash AND the given nameHash
         /// ## IC10
         /// `sbn deviceHash nameHash logicType r?`
         /// ## Slang
-        /// `setOnDeviceBatchedNamed(deviceType, nameHash, "LogicType", (number|var))`
+        /// `setBatchedNamed(deviceHash, nameHash, "LogicType", (number|var))`
         SetOnDeviceBatchedNamed(
-            LiteralOrVariable,
+            Spanned<LiteralOrVariable>,
-            LiteralOrVariable,
+            Spanned<LiteralOrVariable>,
-            Literal,
+            Spanned<Literal>,
             Box<Spanned<Expression>>,
         ),
     }

rust_compiler/libs/parser/src/test/mod.rs

@@ -144,3 +144,10 @@ fn test_binary_expression() -> Result<()> {
 
     Ok(())
 }
+
+#[test]
+fn test_const_hash_expression() -> Result<()> {
+    let expr = parser!(r#"const i = hash("item")"#).parse()?.unwrap();
+    assert_eq!("(const i = hash(\"item\"))", expr.to_string());
+    Ok(())
+}

rust_compiler/libs/parser/src/tree_node.rs

@@ -1,5 +1,7 @@
 use std::ops::Deref;
 
+use crate::sys_call;
+
 use super::sys_call::SysCall;
 use tokenizer::token::Number;
 
@@ -10,6 +12,21 @@ pub enum Literal {
     Boolean(bool),
 }
 
+#[derive(Debug, Eq, PartialEq, Clone)]
+pub enum LiteralOr<T> {
+    Literal(Spanned<Literal>),
+    Or(Spanned<T>),
+}
+
+impl<T: std::fmt::Display> std::fmt::Display for LiteralOr<T> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::Literal(l) => write!(f, "{l}"),
+            Self::Or(o) => write!(f, "{o}"),
+        }
+    }
+}
+
 impl std::fmt::Display for Literal {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
@@ -198,7 +215,14 @@ impl std::fmt::Display for LiteralOrVariable {
 #[derive(Debug, PartialEq, Eq)]
 pub struct ConstDeclarationExpression {
     pub name: Spanned<String>,
-    pub value: Spanned<Literal>,
+    pub value: LiteralOr<SysCall>,
+}
+
+impl ConstDeclarationExpression {
+    pub fn is_syscall_supported(call: &SysCall) -> bool {
+        use sys_call::System;
+        matches!(call, SysCall::System(sys) if matches!(sys, System::Hash(_)))
+    }
 }
 
 impl std::fmt::Display for ConstDeclarationExpression {

rust_compiler/libs/tokenizer/src/lib.rs

@@ -519,6 +519,7 @@ pub struct TokenizerBuffer<'a> {
     tokenizer: Tokenizer<'a>,
     buffer: VecDeque<Token>,
     history: VecDeque<Token>,
+    index: i64,
 }
 
 impl<'a> TokenizerBuffer<'a> {
@@ -527,17 +528,22 @@ impl<'a> TokenizerBuffer<'a> {
             tokenizer,
             buffer: VecDeque::new(),
             history: VecDeque::with_capacity(128),
+            index: 0,
         }
     }
     pub fn next_token(&mut self) -> Result<Option<Token>, Error> {
         if let Some(token) = self.buffer.pop_front() {
             self.history.push_back(token.clone());
+            self.index += 1;
             return Ok(Some(token));
         }
         let token = self.tokenizer.next_token()?;
+
         if let Some(ref token) = token {
             self.history.push_back(token.clone());
         }
+
+        self.index += 1;
         Ok(token)
     }
     pub fn peek(&mut self) -> Result<Option<Token>, Error> {
@@ -547,12 +553,15 @@ impl<'a> TokenizerBuffer<'a> {
         let token = self.tokenizer.peek_next()?;
         Ok(token)
     }
-    fn seek_from_current(&mut self, seek_to: i64) -> Result<(), Error> {
+    pub fn loc(&self) -> i64 {
+        self.index
+    }
+    fn seek_from_current(&mut self, seek_to_int: i64) -> Result<(), Error> {
         use Ordering::*;
-        match seek_to.cmp(&0) {
+        match seek_to_int.cmp(&0) {
             Greater => {
-                let mut tokens = Vec::with_capacity(seek_to as usize);
+                let mut tokens = Vec::with_capacity(seek_to_int as usize);
-                for _ in 0..seek_to {
+                for _ in 0..seek_to_int {
                     if let Some(token) = self.tokenizer.next_token()? {
                         tokens.push(token);
                     } else {
@@ -565,7 +574,7 @@ impl<'a> TokenizerBuffer<'a> {
                 self.history.extend(tokens);
             }
             Less => {
-                let seek_to = seek_to.unsigned_abs() as usize;
+                let seek_to = seek_to_int.unsigned_abs() as usize;
                 let mut tokens = Vec::with_capacity(seek_to);
                 for _ in 0..seek_to {
                     if let Some(token) = self.history.pop_back() {
@@ -577,6 +586,7 @@ impl<'a> TokenizerBuffer<'a> {
                         )));
                     }
                 }
+                self.index -= seek_to_int;
                 self.buffer.extend(tokens.into_iter().rev());
             }
             _ => {}

rust_compiler/libs/tokenizer/src/token.rs

@@ -168,11 +168,86 @@ impl std::fmt::Display for TokenType {
 #[derive(Debug, PartialEq, Hash, Eq, Clone, Copy)]
 pub enum Number {
     /// Represents an integer number
-    Integer(u128),
+    Integer(i128),
     /// Represents a decimal type number with a precision of 64 bits
     Decimal(Decimal),
 }
 
+impl From<Number> for Decimal {
+    fn from(value: Number) -> Self {
+        match value {
+            Number::Decimal(d) => d,
+            Number::Integer(i) => Decimal::from(i),
+        }
+    }
+}
+
+impl std::ops::Neg for Number {
+    type Output = Number;
+
+    fn neg(self) -> Self::Output {
+        match self {
+            Self::Integer(i) => Self::Integer(-i),
+            Self::Decimal(d) => Self::Decimal(-d),
+        }
+    }
+}
+
+impl std::ops::Add for Number {
+    type Output = Number;
+
+    fn add(self, rhs: Self) -> Self::Output {
+        match (self, rhs) {
+            (Self::Integer(l), Self::Integer(r)) => Number::Integer(l + r),
+            (Self::Decimal(l), Self::Decimal(r)) => Number::Decimal(l + r),
+            (Self::Integer(l), Self::Decimal(r)) => Number::Decimal(Decimal::from(l) + r),
+            (Self::Decimal(l), Self::Integer(r)) => Number::Decimal(l + Decimal::from(r)),
+        }
+    }
+}
+
+impl std::ops::Sub for Number {
+    type Output = Number;
+
+    fn sub(self, rhs: Self) -> Self::Output {
+        match (self, rhs) {
+            (Self::Integer(l), Self::Integer(r)) => Self::Integer(l - r),
+            (Self::Decimal(l), Self::Integer(r)) => Self::Decimal(l - Decimal::from(r)),
+            (Self::Integer(l), Self::Decimal(r)) => Self::Decimal(Decimal::from(l) - r),
+            (Self::Decimal(l), Self::Decimal(r)) => Self::Decimal(l - r),
+        }
+    }
+}
+
+impl std::ops::Mul for Number {
+    type Output = Number;
+
+    fn mul(self, rhs: Self) -> Self::Output {
+        match (self, rhs) {
+            (Number::Integer(l), Number::Integer(r)) => Number::Integer(l * r),
+            (Number::Integer(l), Number::Decimal(r)) => Number::Decimal(Decimal::from(l) * r),
+            (Number::Decimal(l), Number::Integer(r)) => Number::Decimal(l * Decimal::from(r)),
+            (Number::Decimal(l), Number::Decimal(r)) => Number::Decimal(l * r),
+        }
+    }
+}
+
+impl std::ops::Div for Number {
+    type Output = Number;
+
+    fn div(self, rhs: Self) -> Self::Output {
+        Number::Decimal(Decimal::from(self) / Decimal::from(rhs))
+    }
+}
+
+impl std::ops::Rem for Number {
+    type Output = Number;
+
+    fn rem(self, rhs: Self) -> Self::Output {
+        Number::Decimal(Decimal::from(self) % Decimal::from(rhs))
+    }
+}
+
 impl std::fmt::Display for Number {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {