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Handle allocation failures during parsing

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This commit is contained in:
Max Brunsfeld 2016-01-19 18:07:24 -08:00
parent ff97a09343
commit 3dde0a6f39
10 changed files with 288 additions and 122 deletions
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13
src/runtime/stack.h
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@ -22,6 +22,12 @@ typedef struct {
int head_index;
} StackPopResult;
typedef enum {
StackPushResultFailed,
StackPushResultMerged,
StackPushResultContinued,
} StackPushResult;
typedef TSTree *(*TreeSelectionFunction)(void *, TSTree *, TSTree *);
/*
@ -73,11 +79,10 @@ int ts_stack_entry_next_count(const StackEntry *);
StackEntry *ts_stack_entry_next(const StackEntry *, int);
/*
* Push a (tree, state) pair onto the given head of the stack. Returns
* a boolean indicating whether the stack head was merged with an
* existing head.
* Push a (tree, state) pair onto the given head of the stack. This could cause
* the head to merge with an existing head.
*/
bool ts_stack_push(Stack *, int head, TSStateId, TSTree *);
StackPushResult ts_stack_push(Stack *, int head, TSStateId, TSTree *);
/*
* Add an alternative tree for the given head of the stack.