Switch ilasm to Antlr4BuildTasks

eng/Versions.props

@@ -141,8 +141,8 @@
     <MicrosoftBuildUtilitiesCoreVersion>17.11.48</MicrosoftBuildUtilitiesCoreVersion>
     <DotnetSosVersion>7.0.412701</DotnetSosVersion>
     <DotnetSosTargetFrameworkVersion>6.0</DotnetSosTargetFrameworkVersion>
-    <Antlr4CodeGeneratorVersion>4.6.6</Antlr4CodeGeneratorVersion>
-    <Antlr4RuntimeVersion>4.6.6</Antlr4RuntimeVersion>
+    <Antlr4BuildTasksVersion>12.14.0</Antlr4BuildTasksVersion>
+    <Antlr4RuntimeStandardVersion>4.13.1</Antlr4RuntimeStandardVersion>
     <!-- Testing -->
     <MicrosoftNETCoreCoreDisToolsVersion>1.6.0</MicrosoftNETCoreCoreDisToolsVersion>
     <MicrosoftNETTestSdkVersion>17.4.0-preview-20220707-01</MicrosoftNETTestSdkVersion>

src/tools/ilasm/README.md

@@ -0,0 +1,25 @@
+# ILAssembler Build Workflow
+
+This directory contains the ILAssembler tool and its build instructions.
+
+## Build Instructions
+
+### Regular Builds
+For everyday development and regular builds, simply run:
+
+```
+./dotnet.sh build src/tools/ilasm/src/ILAssembler
+```
+
+### Updating Generated Files
+If you modify any `.g4` grammar files (rare), you must regenerate the parser and related files:
+
+```
+./dotnet.sh build src/tools/ilasm/src/ILAssembler/gen
+```
+
+This will update the generated files before building the main project.
+
+---
+
+For more details, see the main repository README or contact the maintainers.

src/tools/ilasm/src/ILAssembler/GrammarVisitor.cs

@@ -5551,7 +5551,6 @@ private static int ComputeMetadataSize(MetadataSizes sizes)
         GrammarResult ICILVisitor<GrammarResult>.VisitGenericArgumentsModifier(CILParser.GenericArgumentsModifierContext context) => throw new UnreachableException(NodeShouldNeverBeDirectlyVisited);
         GrammarResult ICILVisitor<GrammarResult>.VisitByRefModifier(CILParser.ByRefModifierContext context) => throw new UnreachableException(NodeShouldNeverBeDirectlyVisited);
         GrammarResult ICILVisitor<GrammarResult>.VisitArrayModifier(CILParser.ArrayModifierContext context) => throw new UnreachableException(NodeShouldNeverBeDirectlyVisited);
-        GrammarResult ICILVisitor<GrammarResult>.VisitTypeModifiers(CILParser.TypeModifiersContext context) => throw new UnreachableException(NodeShouldNeverBeDirectlyVisited);
         public GrammarResult VisitNativeTypeArrayPointerInfo(CILParser.NativeTypeArrayPointerInfoContext context) => throw new UnreachableException(NodeShouldNeverBeDirectlyVisited);
         public GrammarResult VisitPointerArrayTypeSize(CILParser.PointerArrayTypeSizeContext context) => throw new UnreachableException(NodeShouldNeverBeDirectlyVisited);
         public GrammarResult VisitPointerArrayTypeParamIndex(CILParser.PointerArrayTypeParamIndexContext context) => throw new UnreachableException(NodeShouldNeverBeDirectlyVisited);

src/tools/ilasm/src/ILAssembler/ILAssembler.csproj

@@ -11,10 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Antlr4.CodeGenerator" Version="$(Antlr4CodeGeneratorVersion)">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
-    <PackageReference Include="Antlr4.Runtime" Version="$(Antlr4RuntimeVersion)" />
+    <PackageReference Include="Antlr4.Runtime.Standard" Version="$(Antlr4RuntimeStandardVersion)" />
   </ItemGroup>
+
 </Project>