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Halt stack pops at all error states, not just error trees

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This commit is contained in:
Max Brunsfeld 2016-03-03 11:05:37 -08:00
parent 5f9be9d9b2
commit c0595c21c5
4 changed files with 127 additions and 103 deletions
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12
src/runtime/stack.h
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@ -29,6 +29,15 @@ typedef enum {
StackPushContinued,
} StackPushResult;
typedef struct {
enum {
StackPopFailed,
StackPopStoppedAtError,
StackPopSucceeded,
} status;
StackSliceArray slices;
} StackPopResult;
typedef int (*TreeSelectionFunction)(void *, TSTree *, TSTree *);
/*
@ -85,8 +94,7 @@ StackPushResult ts_stack_push(Stack *, int head_index, TSTree *, TSStateId);
* which had previously been merged. It returns a struct that indicates the
* index of each revealed head and the trees removed from that head.
*/
StackSliceArray ts_stack_pop(Stack *, int head_index, int count,
bool count_extra);
StackPopResult ts_stack_pop(Stack *, int head_index, int count, bool count_extra);
/*
* Remove the given number of entries from the given head of the stack.