Create specific exception when index is out of range. Update thread class to print out exception details. Throw exception when an invalid op-code is detected. Enforce mspawn instruction cannot start from a built-in module.

arr committed 10 years ago

Commit 266fad61 parent 9af409310 files · +63 −40Browse files

Showing the changes to src/vm/execution_table.cpp (1 of 10 files). Show all

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         auto index = vt_ref<word_t>(r.dest);
         if (index < 0 || arr->get_length() <= index)
-            throw out_of_range_memory{ 0, arr->get_length(), index };
+            throw index_out_of_range_memory{ 0, arr->get_length(), index };
         // Return the address, not the value
         pt_ref(r.mid) = arr->at(index);
         const auto &function_ref = target_module_ref->get_function_ref(import_function_id);
+        // Spawning a built-in module is not permitted
+        if (target_module_ref->is_builtin_module())
+            throw vm_user_exception{ "Spawning a built-in module is not permitted" };
         vm.fork(r.thread, *target_module_ref, *spawned_frame, function_ref.entry_pc);
         // After the new thread is forked pop off the argument passing frame.
         auto imported_module = std::shared_ptr<const vm_module_t>{};
         // Handle self loading module optimization.
-        if (::strcmp(str->str(), "$self") == 0)
+        if (std::strcmp(str->str(), "$self") == 0)
         {
             imported_module = r.module_ref->module;
         }