fix a bug in type hashconsing #103
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akuhlens
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Apr 8, 2020
| @@ -136,7 +136,8 @@ | |||
| (Array-set! #t ((Array Obj) Int Obj -> Unit)) | |||
| (Array-ref #f ((Array Obj) Int -> Obj)) | |||
| (Types-hashcons! #t (Type -> Type)) | |||
| (Types-gen-index! #t (Type -> Unit)) | |||
| (Types-gen-index! #t (-> Unit)) | |||
| (get-types-hashcons-index #f (-> Int)) | |||
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The index field in types was not being updated correctly. Before the fix, 0 was written to the index field, regardless of the current value of
types_unique_index_counter, becauseTypes-gen-index!has side effects and its result is not written to the variable.Furthermore, I decreased some code bloat by taking advantage of uniform memory layout of structural types.
Finally, I fixed a memory leak when resizing the types hashconsing table.