syntax_data: {"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                                 // generic over the allocator, we'll not add a retag! This is a hack
context_before:                                 // Using `is_box_global` here is a bit sketchy: if this code is
context_after:                                 // to make Stacked Borrows compatible with custom allocator code.