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Introduce an error cost per error instance to favor fewer errors

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This commit is contained in:
Max Brunsfeld 2018-04-02 11:52:34 -07:00
parent 80f856cef5
commit 1d9d6f37ad
3 changed files with 15 additions and 7 deletions
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11
src/runtime/tree.c
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@ -354,11 +354,14 @@ void ts_tree_set_children(Tree *self, uint32_t child_count, Tree **children,
}
if (self->symbol == ts_builtin_sym_error) {
self->error_cost += ERROR_COST_PER_SKIPPED_CHAR * self->size.bytes +
self->error_cost += ERROR_COST_PER_RECOVERY +
ERROR_COST_PER_SKIPPED_CHAR * self->size.bytes +
ERROR_COST_PER_SKIPPED_LINE * self->size.extent.row;
for (uint32_t i = 0; i < child_count; i++)
if (!self->children[i]->extra)
for (uint32_t i = 0; i < child_count; i++) {
if (!self->children[i]->extra) {
self->error_cost += ERROR_COST_PER_SKIPPED_TREE;
}
}
}
if (child_count > 0) {
@ -418,7 +421,7 @@ Tree *ts_tree_make_error_node(TreePool *pool, TreeArray *children, const TSLangu
Tree *ts_tree_make_missing_leaf(TreePool *pool, TSSymbol symbol, const TSLanguage *language) {
Tree *result = ts_tree_make_leaf(pool, symbol, length_zero(), length_zero(), language);
result->is_missing = true;
result->error_cost = ERROR_COST_PER_MISSING_TREE;
result->error_cost = ERROR_COST_PER_MISSING_TREE + ERROR_COST_PER_RECOVERY;
return result;
}