{"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"let"}]}
                    let src = self.ecx.read_immediate(src).discard_err()?;
                    let src = self.evaluated[value].as_ref()?;
                    let ret = self.ecx.ptr_to_ptr(&src, ty).discard_err()?;