Intercept assignment; working but errors.

dev/s3-assignment-method.R

@@ -0,0 +1,38 @@
+# Define the S3 class constructor
+MyS3Class <- function(value) {
+  structure(list(value = value), class = "MyS3Class")
+}
+
+# Create an active binding function
+create_active_binding <- function(name, value) {
+  # Remove existing binding if it exists
+  if (exists(name, .GlobalEnv)) {
+    rm(list = name, envir = .GlobalEnv)
+  }
+
+  makeActiveBinding(
+    name,
+    function(v) {
+      if (missing(v)) {
+        return(value$value)
+      } else {
+        cat("hello\n")
+        value$value <<- v
+      }
+    },
+    .GlobalEnv
+  )
+}
+
+# Create an object of MyS3Class
+obj <- MyS3Class(10)
+
+# Create an active binding for the object
+create_active_binding("obj", obj)
+
+# Access the value
+print(obj)  # Should print 10
+
+# Assign a new value and trigger the custom logic
+obj <- 29  # Should print "hello"
+print(obj)  # Should print 29