fix(builtins.cast): when sr is casted, it is converted to a string reference prior to cast

Author: JaDogg

compiler/src/builtins/builtins.cpp

@@ -722,6 +722,10 @@ struct builtin_cast : builtin {
       code << dt_compiler->wrap_in_paren(args[1].first);
     } else if (args[1].second.datatype_->is_none()) {
       code << "NULL";
+    } else if (args[1].second.datatype_->const_unwrap()->is_sr()) {
+      code << "(("
+           << dt_compiler->convert_dt(out_dt, datatype_location::CAST, "", "")
+           << ")yk__bstr_get_reference(" << args[1].first << "))";
     } else {
       code << "(("
            << dt_compiler->convert_dt(out_dt, datatype_location::CAST, "", "")

compiler/test_data/bug_fixes/easy_cstr.yaka

@@ -5,4 +5,6 @@ def myfunc(d: c.CStr) -> None:
 
 def main() -> int:
     myfunc(cast("c.CStr", "hello\nworld\n"))
+    a: sr = "bug\nfix\nis good"
+    myfunc(cast("c.CStr", a))
     return 0

compiler/test_data/bug_fixes/easy_cstr.yaka.c

@@ -14,6 +14,8 @@ void yy__myfunc(yy__c_CStr yy__d)
 int32_t yy__main() 
 {
     yy__myfunc(((yy__c_CStr)"hello\nworld\n"));
+    struct yk__bstr yy__a = yk__bstr_s("bug\nfix\nis good" , 15);
+    yy__myfunc(((yy__c_CStr)yk__bstr_get_reference(yy__a)));
     return INT32_C(0);
 }
 #if defined(YK__MINIMAL_MAIN)