525f0312d5
When resolving the AST, block and optional stacks are used to determine if the current rule being resolved is in a block or an optional. There is no need to do this since the parent node pointers can be used when exiting a block or an optional to determine if resolution is still within a block or an optional. When entering either a block or an optional, update the appropriate tree node pointer. When finished with the last child of a block or optional, set the appropriate pointer to NULL. If a parent of the same kind is found when the parent node pointers are followed back to the root node, then set the pointer to that tree node. Signed-off-by: James Carter <jwcart2@gmail.com> |
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