Merge pull request 'Fixed const -> let bug' (#10) from declaration_const_as_let into master

Reviewed-on: #10

Changelog.md

@@ -1,5 +1,10 @@
 # Changelog
 
+[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

ModData/About/About.xml

@@ -2,7 +2,7 @@
 <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>0.4.5</Version>
+  <Version>0.4.6</Version>
   <Description>
 [h1]Slang: High-Level Programming for Stationeers[/h1]
 

csharp_mod/Plugin.cs

@@ -39,7 +39,7 @@ namespace Slang
     {
         public const string PluginGuid = "com.biddydev.slang";
         public const string PluginName = "Slang";
-        public const string PluginVersion = "0.4.5";
+        public const string PluginVersion = "0.4.6";
 
         private static Harmony? _harmony;
 

rust_compiler/Cargo.lock

@@ -930,7 +930,7 @@ checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
 
 [[package]]
 name = "slang"
-version = "0.4.5"
+version = "0.4.6"
 dependencies = [
  "anyhow",
  "clap",

rust_compiler/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "slang"
-version = "0.4.5"
+version = "0.4.6"
 edition = "2021"
 
 [workspace]

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(())
+}

rust_compiler/libs/compiler/src/v1.rs

@@ -714,7 +714,12 @@ impl<'a> Compiler<'a> {
 
                         Operand::Register(VariableScope::TEMP_STACK_REGISTER)
                     }
-                    VariableLocation::Constant(_) | VariableLocation::Device(_) => unreachable!(),
+                    VariableLocation::Constant(Literal::Number(num)) => Operand::Number(num.into()),
+                    VariableLocation::Constant(Literal::Boolean(b)) => {
+                        Operand::Number(Number::from(b).into())
+                    }
+                    VariableLocation::Device(_)
+                    | VariableLocation::Constant(Literal::String(_)) => unreachable!(),
                 };
                 self.emit_variable_assignment(&var_loc, src)?;
                 (var_loc, None)