v4.2.0-rc1 — STruC++ compiler + Vendor Plugin Packages

.github/workflows/release.yml

@@ -144,6 +144,9 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
+      - name: Download binaries for x64
+        run: npx ts-node scripts/download-binaries.ts --arch x64
+
       - name: Get version and build date
         id: version
         shell: bash

.gitignore

@@ -54,13 +54,9 @@ resources/st-compiler/**.spec
 resources/bin/**/xml2st
 resources/bin/**/xml2st.exe
 resources/bin/**/xml2st/
-resources/bin/**/iec2c
-resources/bin/**/iec2c.exe
-resources/bin/**/iec2iec
-resources/bin/**/iec2iec.exe
 resources/bin/.binary-metadata.json
 resources/bin/**/.binary-metadata.json
-resources/sources/MatIEC/lib/
+resources/strucpp/
 
 # Playwright
 /test-results/

CLAUDE.md

@@ -288,6 +288,37 @@ When adding new code to covered directories, you must add corresponding tests to
 3. Relink variables after variable table changes
 4. Node IDs must be unique per flow
 
+### IEC address allocation + alias registry
+
+Located in `src/backend/shared/utils/iec-address/` (byte-identical on
+openplc-web). Pure functions, no IPC, no electron coupling.
+
+- **Address pool** (`address-pool.ts`): producer-only, target-scoped
+  view of every claimed IEC address. Producers = pin mapping, VPP
+  module slots, Modbus TCP remote IO points, EtherCAT channel
+  mappings. Capability scoping comes from `target-capabilities` —
+  switching targets activates / deactivates entire producers.
+  - Reservation pass: pin-mapping (Arduino-style fixed addresses).
+  - Allocation pass: every other producer in deterministic order.
+  - `nextFreeAddress(pool, prefix, isBit, startFrom?, alsoUsed?)`
+    replaces the old `generateIecAddress` helper. Pass `alsoUsed` for
+    in-flight allocations within a batch.
+- **Alias registry** (`alias-registry.ts`): derived index on top of
+  the pool. `byAlias` / `byAddress` maps plus `duplicateAliases`
+  (first-wins). Pure function — rebuild on demand, cost is
+  O(producers).
+- **Variable sync** (`sync-variable-aliases.ts`): pure function that
+  walks variables and either adopts (no alias bound but address
+  matches), refreshes (alias address moved), or orphans (alias gone).
+  Called from every producer-mutation site, target switch,
+  project load, and pre-compile via the
+  `projectActions.syncVariableAliases()` store action.
+
+The variable cell renders `alias ?? location` and shows an amber
+warning glyph + tooltip when the alias is orphaned. Aliases are
+intended to be unique system-wide; the registry's
+`isAliasNameAvailable(name, ignoring?)` is the system-wide validator.
+
 ## Environment
 
 - **Node.js:** >= 20.x < 24

binary-versions.json

@@ -1,10 +1,10 @@
 {
   "xml2st": {
-    "version": "v4.0.3",
+    "version": "v4.0.5",
     "repository": "Autonomy-Logic/xml2st"
   },
-  "matiec": {
-    "version": "v4.0.11",
-    "repository": "Autonomy-Logic/matiec"
+  "strucpp": {
+    "version": "v0.4.11",
+    "repository": "Autonomy-Logic/STruCpp"
   }
 }

configs/webpack/webpack.config.renderer.dev.ts

@@ -111,6 +111,12 @@ const configuration: webpack.Configuration = {
         test: /\.(woff|woff2|eot|ttf|otf)$/i,
         type: 'asset/resource',
       },
+      // Static JS assets — used by the STruC++ LSP worker.  See
+      // webpack.config.renderer.prod.ts for the same rule + rationale.
+      {
+        resourceQuery: /^\?url$/,
+        type: 'asset/resource',
+      },
       // Images
       {
         test: /\.(png|jpg|jpeg|gif)$/i,
@@ -188,7 +194,12 @@ const configuration: webpack.Configuration = {
     }),
 
     new MonacoEditorWebpackPlugin({
-      languages: ['python'],
+      // `python` covers the Python POU editor; `json` covers the
+      // Library Project's manifest tab (`library.json`).  Without
+      // `json` here, opening the manifest tab spawns a worker with
+      // no asset registered, which surfaces as an unhandled Worker
+      // `error` event in the renderer console.
+      languages: ['python', 'json'],
     }),
   ],
 

configs/webpack/webpack.config.renderer.prod.ts

@@ -81,6 +81,15 @@ const configuration: webpack.Configuration = {
         test: /\.(woff|woff2|eot|ttf|otf)$/i,
         type: 'asset/resource',
       },
+      // Static JS assets — used by the STruC++ LSP worker.  The
+      // strucpp browser-server bundle is a pre-built IIFE that
+      // webpack must NOT re-bundle (it already self-contains the
+      // compiler).  Importing it with `?url` returns the emitted
+      // asset's URL so `new Worker(url)` spawns it directly.
+      {
+        resourceQuery: /^\?url$/,
+        type: 'asset/resource',
+      },
       // Images
       {
         test: /\.(png|jpg|jpeg|gif)$/i,
@@ -154,7 +163,12 @@ const configuration: webpack.Configuration = {
     }),
 
     new MonacoEditorWebpackPlugin({
-      languages: ['python'],
+      // `python` covers the Python POU editor; `json` covers the
+      // Library Project's manifest tab (`library.json`).  Without
+      // `json` here, opening the manifest tab spawns a worker with
+      // no asset registered, which surfaces as an unhandled Worker
+      // `error` event in the renderer console.
+      languages: ['python', 'json'],
     }),
   ],
 }