Fable support

.vscode/launch.json

@@ -0,0 +1,18 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": ".NET Core Launch (console)",
+            "type": "coreclr",
+            "request": "launch",
+            "program": "${workspaceFolder}/artifacts/bin/fcs-fable-test/Debug/netcoreapp3.1/fcs-fable-test.dll",
+            "args": [],
+            "cwd": "${workspaceFolder}/fcs/fcs-fable/test",
+            "console": "internalConsole",
+            "stopAtEntry": false
+        }
+    ]
+}

eng/Versions.props

@@ -68,7 +68,7 @@
       <!-- https://pkgs.dev.azure.com/azure-public/vside/_packaging/vs-buildservices/nuget/v3/index.json; --></RestoreSources>
     <!-- System.* packages -->
     <SystemBuffersVersion>4.5.1</SystemBuffersVersion>
-    <SystemCollectionsImmutableVersion>5.0.0-preview.8.20407.11</SystemCollectionsImmutableVersion>
+    <SystemCollectionsImmutableVersion>1.7.1</SystemCollectionsImmutableVersion>
     <SystemConsoleVersion>4.3.0</SystemConsoleVersion>
     <SystemDataSqlClientPackageVersion>4.3.0</SystemDataSqlClientPackageVersion>
     <SystemDesignVersion>4.0.0</SystemDesignVersion>
@@ -81,7 +81,7 @@
     <SystemNetRequestsVersion>4.3.0</SystemNetRequestsVersion>
     <SystemNetSecurityVersion>4.3.0</SystemNetSecurityVersion>
     <SystemReflectionEmitVersion>4.3.0</SystemReflectionEmitVersion>
-    <SystemReflectionMetadataVersion>5.0.0-preview.8.20407.11</SystemReflectionMetadataVersion>
+    <SystemReflectionMetadataVersion>1.8.1</SystemReflectionMetadataVersion>
     <SystemReflectionTypeExtensionsVersion>4.3.0</SystemReflectionTypeExtensionsVersion>
     <SystemRuntimeCachingVersion>1.5.0</SystemRuntimeCachingVersion>
     <SystemRuntimeVersion>4.3.0</SystemRuntimeVersion>

fcs/build.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# cd to root
+cd $(dirname $0)/..
+
+# build fslex/fsyacc tools
+dotnet build -c Release src/buildtools/buildtools.proj
+# dotnet build -c Release src/fsharp/FSharp.Compiler.Service
+
+# FCS-Fable codegen
+cd fcs/fcs-fable/codegen
+dotnet build -c Release
+dotnet run -c Release -- ../../../src/fsharp/FSComp.txt FSComp.fs
+dotnet run -c Release -- ../../../src/fsharp/fsi/FSIstrings.txt FSIstrings.fs
+
+# replace all #line directives with comments
+files="lex.fs pplex.fs illex.fs ilpars.fs pars.fs pppars.fs"
+for file in $files; do
+  echo "Replace #line directives with comments in $file"
+  sed -i 's/^# [0-9]/\/\/\0/' $file                           # comment #line directives
+  sed -i 's/^\(\/\/# [0-9]\{1,\} "\).*\/codegen\//\1/' $file  # cleanup #line paths
+done
+
+# FCS-Fable build
+cd ..
+dotnet build -c Release
+
+# # run test
+# cd test
+# dotnet run -c Release

fcs/fcs-fable/.gitignore

@@ -0,0 +1,3 @@
+# Codegen
+codegen/*.fs
+codegen/*.fsi