Some defensive programming #1890
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On the off chance that `lookup_decoration()` cannot find anything, let `leave_one_treesame_to_parent()` return gracefully instead of crashing. Pointed out by CodeQL. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `lookup_commit_reference()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `parse_object()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `lookup_commit()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `lookup_commit()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `parse_tree_indirect()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `lookup_commit()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `branch_get()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `branch_get()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `lookup_commit_reference()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
CodeQL points out that `branch_get()` can return NULL values. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
As pointed out by CodeQL, it could be NULL and we usually check for that. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
On the off-chance that it's NULL... Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
As pointed out by CodeQL, `lookup_commit()` can return NULL. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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These patches implement some defensive programming to address complaints some static analyzers might have.