chore: remove trailing whitespace from all source files in src/ directory

runtime/gc/gc_mark.c

@@ -0,0 +1,108 @@
+#include "gc_mark.h"
+#include "gc_roots.h"
+#include "../runtime.h"
+#include <string.h>
+
+static RavaGCState_t g_gc_state;
+
+void rava_gc_mark_init(void) {
+    memset(&g_gc_state, 0, sizeof(g_gc_state));
+    g_gc_state.gc_enabled = true;
+}
+
+RavaGCState_t* rava_gc_get_state(void) {
+    return &g_gc_state;
+}
+
+void rava_gc_mark_object(RavaGCHeader_t *obj) {
+    if (!obj || obj->gc_mark != RAVA_GC_WHITE) {
+        return;
+    }
+
+    obj->gc_mark = RAVA_GC_GRAY;
+
+    if (g_gc_state.gray_count < RAVA_GC_GRAY_STACK_SIZE) {
+        g_gc_state.gray_stack[g_gc_state.gray_count++] = obj;
+    } else {
+        rava_gc_process_object(obj);
+    }
+}
+
+static void _rava_gc_trace_object(RavaObject_t *obj) {
+    for (size_t i = 0; i < obj->field_count; i++) {
+        rava_gc_mark_value(obj->field_values[i]);
+    }
+}
+
+static void _rava_gc_trace_array(RavaArray_t *arr) {
+    if (arr->element_type == RAVA_VAL_OBJECT ||
+        arr->element_type == RAVA_VAL_ARRAY) {
+        RavaValue_t *values = (RavaValue_t*)arr->data;
+        for (size_t i = 0; i < arr->length; i++) {
+            rava_gc_mark_value(values[i]);
+        }
+    }
+}
+
+static void _rava_gc_trace_arraylist(RavaArrayList_t *list) {
+    for (size_t i = 0; i < list->size; i++) {
+        rava_gc_mark_value(list->data[i]);
+    }
+}
+
+static void _rava_gc_trace_hashmap(RavaHashMap_t *map) {
+    for (size_t i = 0; i < map->bucket_count; i++) {
+        if (map->buckets[i].occupied) {
+            rava_gc_mark_value(map->buckets[i].value);
+        }
+    }
+}
+
+static void _rava_gc_trace_methodref(RavaMethodRef_t *ref) {
+    if (ref->has_target) {
+        rava_gc_mark_value(ref->target);
+    }
+}
+
+void rava_gc_process_object(RavaGCHeader_t *obj) {
+    obj->gc_mark = RAVA_GC_BLACK;
+    g_gc_state.objects_marked++;
+    g_gc_state.bytes_marked += obj->gc_size;
+
+    switch (obj->gc_type) {
+        case RAVA_GC_TYPE_OBJECT: {
+            RavaObject_t *o = (RavaObject_t*)obj;
+            _rava_gc_trace_object(o);
+            break;
+        }
+        case RAVA_GC_TYPE_ARRAY: {
+            RavaArray_t *a = (RavaArray_t*)obj;
+            _rava_gc_trace_array(a);
+            break;
+        }
+        case RAVA_GC_TYPE_ARRAYLIST: {
+            RavaArrayList_t *l = (RavaArrayList_t*)obj;
+            _rava_gc_trace_arraylist(l);
+            break;
+        }
+        case RAVA_GC_TYPE_HASHMAP: {
+            RavaHashMap_t *m = (RavaHashMap_t*)obj;
+            _rava_gc_trace_hashmap(m);
+            break;
+        }
+        case RAVA_GC_TYPE_METHODREF: {
+            RavaMethodRef_t *r = (RavaMethodRef_t*)obj;
+            _rava_gc_trace_methodref(r);
+            break;
+        }
+        default:
+            break;
+    }
+}
+
+void rava_gc_process_gray_stack(void) {
+    while (g_gc_state.gray_count > 0) {
+        RavaGCHeader_t *obj = g_gc_state.gray_stack[--g_gc_state.gray_count];
+        rava_gc_process_object(obj);
+    }
+}