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In order to find statements not allowed in tunableifs, in-statements, macros, and booleanifs, there are tree node pointers that point to each of these kinds of statements when its block is being parsed. If the pointer is non-NULL, then the rule being parsed is in the block of that kind of statement. The tree node pointers were being updated at the wrong point which prevented an invalid statement from being found if it was the first statement in the block of a tunableif, in-statement, macro, or booleanif. Create a first child helper function for walking the parse tree and in that function set the appropriate tree node pointer if the current AST node is a tunableif, in-statement, macro, or booleanif. This also makes the code symmetrical with the last child helper where the tree node pointers are set to NULL. Signed-off-by: James Carter <jwcart2@gmail.com> |
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