From 42850ab4cc56bde3afb571432f78c3243a29753b Mon Sep 17 00:00:00 2001
From: Martin Winkler <efelon@winklerfamilie.eu>
Date: Sun, 21 Dec 2025 00:34:56 +0100
Subject: [PATCH] Provide compile time defines to initialize const variables

---
 src/stubser/stubser.c     | 23 +++++++++++++++++------
 src/stubser/stubser_loc.h |  1 +
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/src/stubser/stubser.c b/src/stubser/stubser.c
index 1b43bd9..31bb5ec 100644
--- a/src/stubser/stubser.c
+++ b/src/stubser/stubser.c
@@ -311,6 +311,7 @@ STATIC int8_t createStubExpected(char *aNoSuffix, FILE *aFile, FILE *aHeader, cf
    return 0;
 }
 
+
 STATIC int8_t createStubGlobals(char *aNoSuffix, FILE *aFile, FILE *aHeader, cfile_variableList_t *aList)
 {
    cfile_variable_t *work = NULL;
@@ -332,6 +333,16 @@ STATIC int8_t createStubGlobals(char *aNoSuffix, FILE *aFile, FILE *aHeader, cfi
          fprintf(aFile, "%s (%s)%s;"NEWLINES, work->dataType, work->name, (work->array ? work->array : ""));
          fprintf(aHeader, "extern %s (%s)%s;"NEWLINES, work->dataType, work->name, (work->array ? work->array : ""));
       }
+      else if (CVARIABLE_CHECK_TYPE(work->type, CVARIABLE_TYPE_CONST))
+      {
+         fprintf(aFile, "%s %s%s = "STUBVARIABLE_INIT_S1";"NEWLINES, work->dataType, work->name, (work->array ? work->array : ""), work->name);
+         fprintf(aHeader, "extern %s %s%s;"NEWLINES, work->dataType, work->name, (work->array ? work->array : ""));
+         fprintf(aHeader, "#ifndef "STUBVARIABLE_INIT_S1""NEWLINES, work->name);
+         // using zero-initialization rule {0} with any amount of dimensions for arrays
+         fprintf(aHeader, "\t#define "STUBVARIABLE_INIT_S1" %s"NEWLINES, work->name,
+               (work->array ? "{0}" : "("STUBDEFAULT_VALUE_VARIABLE_S")"));
+         fprintf(aHeader, "#endif"NEWLINES NEWLINES);
+      }
       else
       {
          fprintf(aFile, "%s %s%s;"NEWLINES, work->dataType, work->name, (work->array ? work->array : ""));
@@ -885,8 +896,8 @@ STATIC void createUserFiles(char *aOutput, char *aNoSuffix, bool aVaList)
       {
 
          fprintf(fileDesc, "/*! @file %s"NEWLINES, gnu_basename(cHeaderName));
-         fprintf(fileDesc, " * @details"NEWLINES" * This is a user defined stub header.\\n"NEWLINES);
-         fprintf(fileDesc, " * Define subject header needed for compilation of stub (e.g. typedefs, structures, ...).\\n"NEWLINES);
+         fprintf(fileDesc, " * @details"NEWLINES" * This is a user defined stub header."NEWLINES);
+         fprintf(fileDesc, " * Define subject header needed for compilation of stub (e.g. typedefs, structures, ...)."NEWLINES);
          fprintf(fileDesc, " * - generated by stubser %s -"NEWLINES" */" NEWLINES NEWLINES, GITVERSION);
 
          fprintf(fileDesc, "#ifndef _STUB_%s_USER_H"NEWLINES, aNoSuffix);
@@ -919,8 +930,8 @@ STATIC void createUserFiles(char *aOutput, char *aNoSuffix, bool aVaList)
       {
 
          fprintf(fileDesc, "/*! @file %s"NEWLINES, gnu_basename(cFileName));
-         fprintf(fileDesc, " * @details"NEWLINES" * This is a user defined stub.\\n"NEWLINES);
-         fprintf(fileDesc, " * Define additional elements which need to be tested, or helper functions.\\n"NEWLINES);
+         fprintf(fileDesc, " * @details"NEWLINES" * This is a user defined stub."NEWLINES);
+         fprintf(fileDesc, " * Define additional elements which need to be tested, or helper functions."NEWLINES);
          fprintf(fileDesc, " * - generated by stubser %s -"NEWLINES" */" NEWLINES NEWLINES, GITVERSION);
 
          fprintf(fileDesc, "#include <CUnit/CUnit.h>"NEWLINES);
@@ -980,7 +991,7 @@ STATIC int8_t createStub(char *aOutput, char *aNoSuffix, cfile_t *aCfile)
    createUserFiles(aOutput, aNoSuffix, vaListAvailable);
 
    fprintf(cfile, "/*! @file %s"NEWLINES, gnu_basename(cFileName));
-   fprintf(cfile, " * @details"NEWLINES" * This is a stub for CUnit.\\n"NEWLINES);
+   fprintf(cfile, " * @details"NEWLINES" * This is a stub for CUnit."NEWLINES);
    fprintf(cfile, " * - generated by stubser %s -"NEWLINES" */" NEWLINES NEWLINES, GITVERSION);
    fprintf(cfile, "#include <CUnit/CUnit.h>"NEWLINES);
    fprintf(cfile, "#include <stdint.h>"NEWLINES);
@@ -998,7 +1009,7 @@ STATIC int8_t createStub(char *aOutput, char *aNoSuffix, cfile_t *aCfile)
    }
 
    fprintf(cheader, "/*! @file %s"NEWLINES, gnu_basename(cHeaderName));
-   fprintf(cheader, " * @details"NEWLINES" * This is a stub header.\\n"NEWLINES);
+   fprintf(cheader, " * @details"NEWLINES" * This is a stub header."NEWLINES);
    fprintf(cheader, " * - generated by stubser %s -"NEWLINES" */" NEWLINES NEWLINES, GITVERSION);
 
    fprintf(cheader, "#ifndef _STUB_%s_H"NEWLINES, aNoSuffix);
diff --git a/src/stubser/stubser_loc.h b/src/stubser/stubser_loc.h
index c5f9f45..efc804a 100644
--- a/src/stubser/stubser_loc.h
+++ b/src/stubser/stubser_loc.h
@@ -60,6 +60,7 @@
 #define STUBFUNCTION_CHECK_S1 "stub_%s_checkGlobals" // stub_testfunction_checkGlobals
 #define STUBFUNCTION_INIT_S1 "stub_%s_init" // stub_testfunction_init
 #define STUBVARIABLE_EXPECTED_S1 "%s_expected" // variable_expected
+#define STUBVARIABLE_INIT_S1 "%s_INIT" // variable_init (used for const variables)
 
 #define STUB_CONSOLE_GOBACK "\033[2K\r"
 #define STUB_CONSOLE_RUN "[    ]"