From a50f961d5c079023312c0198120c6db2c6bf7e51 Mon Sep 17 00:00:00 2001
From: Christian Menard <christian.menard@tu-dresden.de>
Date: Tue, 19 Mar 2024 11:04:33 +0100
Subject: [PATCH] Fixed clean building federated programs

Fixes https://github.com/lf-lang/lingua-franca/issues/2171
---
 core/src/main/java/org/lflang/generator/GeneratorBase.java   | 2 +-
 .../main/java/org/lflang/generator/LFGeneratorContext.java   | 5 +++++
 core/src/main/java/org/lflang/generator/SubContext.java      | 5 +++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/core/src/main/java/org/lflang/generator/GeneratorBase.java b/core/src/main/java/org/lflang/generator/GeneratorBase.java
index dade9fed71..ea99722a9a 100644
--- a/core/src/main/java/org/lflang/generator/GeneratorBase.java
+++ b/core/src/main/java/org/lflang/generator/GeneratorBase.java
@@ -618,7 +618,7 @@ public void reportCommandErrors(String stderr) {
 
   /** Check if a clean was requested from the standalone compiler and perform the clean step. */
   protected void cleanIfNeeded(LFGeneratorContext context) {
-    if (context.getArgs().clean()) {
+    if (context.isCleanRequested()) {
       try {
         context.getFileConfig().doClean();
       } catch (IOException e) {
diff --git a/core/src/main/java/org/lflang/generator/LFGeneratorContext.java b/core/src/main/java/org/lflang/generator/LFGeneratorContext.java
index faa1363536..a18811aaf0 100644
--- a/core/src/main/java/org/lflang/generator/LFGeneratorContext.java
+++ b/core/src/main/java/org/lflang/generator/LFGeneratorContext.java
@@ -38,6 +38,11 @@ enum Mode {
   /** Get the error reporter for this context; construct one if it hasn't been constructed yet. */
   MessageReporter getErrorReporter();
 
+  /** Return true if the user requested a clean build in this context. */
+  default boolean isCleanRequested() {
+    return getArgs().clean();
+  }
+
   /**
    * Mark the code generation process performed in this context as finished with the result {@code
    * result}.
diff --git a/core/src/main/java/org/lflang/generator/SubContext.java b/core/src/main/java/org/lflang/generator/SubContext.java
index ec9bcc774c..f47161023b 100644
--- a/core/src/main/java/org/lflang/generator/SubContext.java
+++ b/core/src/main/java/org/lflang/generator/SubContext.java
@@ -38,6 +38,11 @@ public SubContext(
     this.endPercentProgress = endPercentProgress;
   }
 
+  @Override
+  public boolean isCleanRequested() {
+    return false;
+  } /// never clean in a sub context
+
   @Override
   public CancelIndicator getCancelIndicator() {
     return containingContext.getCancelIndicator();