mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
[Tolk] Nullable types T?
and null safety
This commit introduces nullable types `T?` that are distinct from non-nullable `T`. Example: `int?` (int or null) and `int` are different now. Previously, `null` could be assigned to any primitive type. Now, it can be assigned only to `T?`. A non-null assertion operator `!` was also introduced, similar to `!` in TypeScript and `!!` in Kotlin. If `int?` still occupies 1 stack slot, `(int,int)?` and other nullable tensors occupy N+1 slots, the last for "null precedence". `v == null` actually compares that slot. Assigning `(int,int)` to `(int,int)?` implicitly creates a null presence slot. Assigning `null` to `(int,int)?` widens this null value to 3 slots. This is called "type transitioning". All stdlib functions prototypes have been updated to reflect whether they return/accept a nullable or a strict value. This commit also contains refactoring from `const FunctionData*` to `FunctionPtr` and similar.
This commit is contained in:
parent
1389ff6789
commit
f3e620f48c
62 changed files with 2031 additions and 702 deletions
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@ -9,288 +9,289 @@ tolk 0.8
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- uDict* - dicts with unsigned integer keys
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- sDict* - dicts with arbitrary slice keys
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When accessing a dict element, you should not only provide a key, but provide keyLen,
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since for optimization, for optimization, key length is not stored in the dictionary itself.
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since for optimization, key length is not stored in the dictionary itself.
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Every dictionary object (`self` parameter) can be null. TVM NULL is essentially "empty dictionary".
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*/
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/// Creates an empty dictionary, which is actually a null value. Equivalent to PUSHNULL
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@pure
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fun createEmptyDict(): cell
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fun createEmptyDict(): cell?
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asm "NEWDICT";
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/// Checks whether a dictionary is empty.
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@pure
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fun dictIsEmpty(self: cell): bool
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fun dictIsEmpty(self: cell?): bool
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asm "DICTEMPTY";
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@pure
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fun iDictGet(self: cell, keyLen: int, key: int): (slice, bool)
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fun iDictGet(self: cell?, keyLen: int, key: int): (slice?, bool)
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asm(key self keyLen) "DICTIGET" "NULLSWAPIFNOT";
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@pure
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fun uDictGet(self: cell, keyLen: int, key: int): (slice, bool)
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fun uDictGet(self: cell?, keyLen: int, key: int): (slice?, bool)
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asm(key self keyLen) "DICTUGET" "NULLSWAPIFNOT";
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@pure
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fun sDictGet(self: cell, keyLen: int, key: slice): (slice, bool)
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fun sDictGet(self: cell?, keyLen: int, key: slice): (slice?, bool)
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asm(key self keyLen) "DICTGET" "NULLSWAPIFNOT";
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@pure
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fun iDictSet(mutate self: cell, keyLen: int, key: int, value: slice): void
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fun iDictSet(mutate self: cell?, keyLen: int, key: int, value: slice): void
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asm(value key self keyLen) "DICTISET";
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@pure
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fun uDictSet(mutate self: cell, keyLen: int, key: int, value: slice): void
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fun uDictSet(mutate self: cell?, keyLen: int, key: int, value: slice): void
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asm(value key self keyLen) "DICTUSET";
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@pure
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fun sDictSet(mutate self: cell, keyLen: int, key: slice, value: slice): void
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fun sDictSet(mutate self: cell?, keyLen: int, key: slice, value: slice): void
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asm(value key self keyLen) "DICTSET";
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@pure
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fun iDictSetRef(mutate self: cell, keyLen: int, key: int, value: cell): void
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fun iDictSetRef(mutate self: cell?, keyLen: int, key: int, value: cell): void
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asm(value key self keyLen) "DICTISETREF";
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@pure
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fun uDictSetRef(mutate self: cell, keyLen: int, key: int, value: cell): void
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fun uDictSetRef(mutate self: cell?, keyLen: int, key: int, value: cell): void
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asm(value key self keyLen) "DICTUSETREF";
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@pure
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fun sDictSetRef(mutate self: cell, keyLen: int, key: slice, value: cell): void
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fun sDictSetRef(mutate self: cell?, keyLen: int, key: slice, value: cell): void
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asm(value key self keyLen) "DICTSETREF";
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@pure
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fun iDictSetIfNotExists(mutate self: cell, keyLen: int, key: int, value: slice): bool
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fun iDictSetIfNotExists(mutate self: cell?, keyLen: int, key: int, value: slice): bool
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asm(value key self keyLen) "DICTIADD";
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@pure
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fun uDictSetIfNotExists(mutate self: cell, keyLen: int, key: int, value: slice): bool
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fun uDictSetIfNotExists(mutate self: cell?, keyLen: int, key: int, value: slice): bool
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asm(value key self keyLen) "DICTUADD";
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@pure
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fun iDictSetIfExists(mutate self: cell, keyLen: int, key: int, value: slice): bool
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fun iDictSetIfExists(mutate self: cell?, keyLen: int, key: int, value: slice): bool
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asm(value key self keyLen) "DICTIREPLACE";
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@pure
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fun uDictSetIfExists(mutate self: cell, keyLen: int, key: int, value: slice): bool
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fun uDictSetIfExists(mutate self: cell?, keyLen: int, key: int, value: slice): bool
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asm(value key self keyLen) "DICTUREPLACE";
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@pure
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fun iDictGetRef(self: cell, keyLen: int, key: int): (cell, bool)
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fun iDictGetRef(self: cell?, keyLen: int, key: int): (cell?, bool)
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asm(key self keyLen) "DICTIGETREF" "NULLSWAPIFNOT";
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@pure
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fun uDictGetRef(self: cell, keyLen: int, key: int): (cell, bool)
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fun uDictGetRef(self: cell?, keyLen: int, key: int): (cell?, bool)
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asm(key self keyLen) "DICTUGETREF" "NULLSWAPIFNOT";
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@pure
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fun sDictGetRef(self: cell, keyLen: int, key: slice): (cell, bool)
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fun sDictGetRef(self: cell?, keyLen: int, key: slice): (cell?, bool)
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asm(key self keyLen) "DICTGETREF" "NULLSWAPIFNOT";
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@pure
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fun iDictGetRefOrNull(self: cell, keyLen: int, key: int): cell
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fun iDictGetRefOrNull(self: cell?, keyLen: int, key: int): cell?
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asm(key self keyLen) "DICTIGETOPTREF";
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@pure
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fun uDictGetRefOrNull(self: cell, keyLen: int, key: int): cell
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fun uDictGetRefOrNull(self: cell?, keyLen: int, key: int): cell?
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asm(key self keyLen) "DICTUGETOPTREF";
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@pure
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fun sDictGetRefOrNull(self: cell, keyLen: int, key: slice): cell
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fun sDictGetRefOrNull(self: cell?, keyLen: int, key: slice): cell?
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asm(key self keyLen) "DICTGETOPTREF";
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@pure
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fun iDictDelete(mutate self: cell, keyLen: int, key: int): bool
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fun iDictDelete(mutate self: cell?, keyLen: int, key: int): bool
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asm(key self keyLen) "DICTIDEL";
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@pure
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fun uDictDelete(mutate self: cell, keyLen: int, key: int): bool
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fun uDictDelete(mutate self: cell?, keyLen: int, key: int): bool
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asm(key self keyLen) "DICTUDEL";
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@pure
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fun sDictDelete(mutate self: cell, keyLen: int, key: slice): bool
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fun sDictDelete(mutate self: cell?, keyLen: int, key: slice): bool
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asm(key self keyLen) "DICTDEL";
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@pure
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fun iDictSetAndGet(mutate self: cell, keyLen: int, key: int, value: slice): (slice, bool)
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fun iDictSetAndGet(mutate self: cell?, keyLen: int, key: int, value: slice): (slice?, bool)
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asm(value key self keyLen) "DICTISETGET" "NULLSWAPIFNOT";
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@pure
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fun uDictSetAndGet(mutate self: cell, keyLen: int, key: int, value: slice): (slice, bool)
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fun uDictSetAndGet(mutate self: cell?, keyLen: int, key: int, value: slice): (slice?, bool)
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asm(value key self keyLen) "DICTUSETGET" "NULLSWAPIFNOT";
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@pure
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fun sDictSetAndGet(mutate self: cell, keyLen: int, key: slice, value: slice): (slice, bool)
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fun sDictSetAndGet(mutate self: cell?, keyLen: int, key: slice, value: slice): (slice?, bool)
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asm(value key self keyLen) "DICTSETGET" "NULLSWAPIFNOT";
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@pure
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fun iDictSetAndGetRefOrNull(mutate self: cell, keyLen: int, key: int, value: cell): cell
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fun iDictSetAndGetRefOrNull(mutate self: cell?, keyLen: int, key: int, value: cell): cell?
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asm(value key self keyLen) "DICTISETGETOPTREF";
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@pure
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fun uDictSetAndGetRefOrNull(mutate self: cell, keyLen: int, key: int, value: cell): cell
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fun uDictSetAndGetRefOrNull(mutate self: cell?, keyLen: int, key: int, value: cell): cell?
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asm(value key self keyLen) "DICTUSETGETOPTREF";
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@pure
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fun iDictDeleteAndGet(mutate self: cell, keyLen: int, key: int): (slice, bool)
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fun iDictDeleteAndGet(mutate self: cell?, keyLen: int, key: int): (slice?, bool)
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asm(key self keyLen) "DICTIDELGET" "NULLSWAPIFNOT";
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@pure
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fun uDictDeleteAndGet(mutate self: cell, keyLen: int, key: int): (slice, bool)
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fun uDictDeleteAndGet(mutate self: cell?, keyLen: int, key: int): (slice?, bool)
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asm(key self keyLen) "DICTUDELGET" "NULLSWAPIFNOT";
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@pure
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fun sDictDeleteAndGet(mutate self: cell, keyLen: int, key: slice): (slice, bool)
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fun sDictDeleteAndGet(mutate self: cell?, keyLen: int, key: slice): (slice?, bool)
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asm(key self keyLen) "DICTDELGET" "NULLSWAPIFNOT";
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@pure
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fun iDictSetBuilder(mutate self: cell, keyLen: int, key: int, value: builder): void
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fun iDictSetBuilder(mutate self: cell?, keyLen: int, key: int, value: builder): void
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asm(value key self keyLen) "DICTISETB";
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@pure
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fun uDictSetBuilder(mutate self: cell, keyLen: int, key: int, value: builder): void
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fun uDictSetBuilder(mutate self: cell?, keyLen: int, key: int, value: builder): void
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asm(value key self keyLen) "DICTUSETB";
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@pure
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fun sDictSetBuilder(mutate self: cell, keyLen: int, key: slice, value: builder): void
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fun sDictSetBuilder(mutate self: cell?, keyLen: int, key: slice, value: builder): void
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asm(value key self keyLen) "DICTSETB";
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@pure
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fun iDictSetBuilderIfNotExists(mutate self: cell, keyLen: int, key: int, value: builder): bool
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fun iDictSetBuilderIfNotExists(mutate self: cell?, keyLen: int, key: int, value: builder): bool
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asm(value key self keyLen) "DICTIADDB";
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@pure
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fun uDictSetBuilderIfNotExists(mutate self: cell, keyLen: int, key: int, value: builder): bool
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fun uDictSetBuilderIfNotExists(mutate self: cell?, keyLen: int, key: int, value: builder): bool
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asm(value key self keyLen) "DICTUADDB";
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@pure
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fun iDictSetBuilderIfExists(mutate self: cell, keyLen: int, key: int, value: builder): bool
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fun iDictSetBuilderIfExists(mutate self: cell?, keyLen: int, key: int, value: builder): bool
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asm(value key self keyLen) "DICTIREPLACEB";
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@pure
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fun uDictSetBuilderIfExists(mutate self: cell, keyLen: int, key: int, value: builder): bool
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fun uDictSetBuilderIfExists(mutate self: cell?, keyLen: int, key: int, value: builder): bool
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asm(value key self keyLen) "DICTUREPLACEB";
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@pure
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fun iDictDeleteFirstAndGet(mutate self: cell, keyLen: int): (int, slice, bool)
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fun iDictDeleteFirstAndGet(mutate self: cell?, keyLen: int): (int?, slice?, bool)
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asm(-> 0 2 1 3) "DICTIREMMIN" "NULLSWAPIFNOT2";
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@pure
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fun uDictDeleteFirstAndGet(mutate self: cell, keyLen: int): (int, slice, bool)
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fun uDictDeleteFirstAndGet(mutate self: cell?, keyLen: int): (int?, slice?, bool)
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asm(-> 0 2 1 3) "DICTUREMMIN" "NULLSWAPIFNOT2";
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@pure
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fun sDictDeleteFirstAndGet(mutate self: cell, keyLen: int): (slice, slice, bool)
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fun sDictDeleteFirstAndGet(mutate self: cell?, keyLen: int): (slice?, slice?, bool)
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asm(-> 0 2 1 3) "DICTREMMIN" "NULLSWAPIFNOT2";
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@pure
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fun iDictDeleteLastAndGet(mutate self: cell, keyLen: int): (int, slice, bool)
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fun iDictDeleteLastAndGet(mutate self: cell?, keyLen: int): (int?, slice?, bool)
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asm(-> 0 2 1 3) "DICTIREMMAX" "NULLSWAPIFNOT2";
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@pure
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fun uDictDeleteLastAndGet(mutate self: cell, keyLen: int): (int, slice, bool)
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fun uDictDeleteLastAndGet(mutate self: cell?, keyLen: int): (int?, slice?, bool)
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asm(-> 0 2 1 3) "DICTUREMMAX" "NULLSWAPIFNOT2";
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@pure
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fun sDictDeleteLastAndGet(mutate self: cell, keyLen: int): (slice, slice, bool)
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fun sDictDeleteLastAndGet(mutate self: cell?, keyLen: int): (slice?, slice?, bool)
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asm(-> 0 2 1 3) "DICTREMMAX" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetFirst(self: cell, keyLen: int): (int, slice, bool)
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fun iDictGetFirst(self: cell?, keyLen: int): (int?, slice?, bool)
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asm (-> 1 0 2) "DICTIMIN" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetFirst(self: cell, keyLen: int): (int, slice, bool)
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fun uDictGetFirst(self: cell?, keyLen: int): (int?, slice?, bool)
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asm (-> 1 0 2) "DICTUMIN" "NULLSWAPIFNOT2";
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@pure
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fun sDictGetFirst(self: cell, keyLen: int): (slice, slice, bool)
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fun sDictGetFirst(self: cell?, keyLen: int): (slice?, slice?, bool)
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asm (-> 1 0 2) "DICTMIN" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetFirstAsRef(self: cell, keyLen: int): (int, cell, bool)
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fun iDictGetFirstAsRef(self: cell?, keyLen: int): (int?, cell?, bool)
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asm (-> 1 0 2) "DICTIMINREF" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetFirstAsRef(self: cell, keyLen: int): (int, cell, bool)
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fun uDictGetFirstAsRef(self: cell?, keyLen: int): (int?, cell?, bool)
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asm (-> 1 0 2) "DICTUMINREF" "NULLSWAPIFNOT2";
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@pure
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fun sDictGetFirstAsRef(self: cell, keyLen: int): (slice, cell, bool)
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fun sDictGetFirstAsRef(self: cell?, keyLen: int): (slice?, cell?, bool)
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asm (-> 1 0 2) "DICTMINREF" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetLast(self: cell, keyLen: int): (int, slice, bool)
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fun iDictGetLast(self: cell?, keyLen: int): (int?, slice?, bool)
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asm (-> 1 0 2) "DICTIMAX" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetLast(self: cell, keyLen: int): (int, slice, bool)
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fun uDictGetLast(self: cell?, keyLen: int): (int?, slice?, bool)
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asm (-> 1 0 2) "DICTUMAX" "NULLSWAPIFNOT2";
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@pure
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fun sDictGetLast(self: cell, keyLen: int): (slice, slice, bool)
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fun sDictGetLast(self: cell?, keyLen: int): (slice?, slice?, bool)
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asm (-> 1 0 2) "DICTMAX" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetLastAsRef(self: cell, keyLen: int): (int, cell, bool)
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fun iDictGetLastAsRef(self: cell?, keyLen: int): (int?, cell?, bool)
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asm (-> 1 0 2) "DICTIMAXREF" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetLastAsRef(self: cell, keyLen: int): (int, cell, bool)
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fun uDictGetLastAsRef(self: cell?, keyLen: int): (int?, cell?, bool)
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asm (-> 1 0 2) "DICTUMAXREF" "NULLSWAPIFNOT2";
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@pure
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fun sDictGetLastAsRef(self: cell, keyLen: int): (slice, cell, bool)
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fun sDictGetLastAsRef(self: cell?, keyLen: int): (slice?, cell?, bool)
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asm (-> 1 0 2) "DICTMAXREF" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetNext(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun iDictGetNext(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTIGETNEXT" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetNext(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun uDictGetNext(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTUGETNEXT" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetNextOrEqual(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun iDictGetNextOrEqual(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTIGETNEXTEQ" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetNextOrEqual(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun uDictGetNextOrEqual(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTUGETNEXTEQ" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetPrev(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun iDictGetPrev(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTIGETPREV" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetPrev(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun uDictGetPrev(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTUGETPREV" "NULLSWAPIFNOT2";
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@pure
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fun iDictGetPrevOrEqual(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun iDictGetPrevOrEqual(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTIGETPREVEQ" "NULLSWAPIFNOT2";
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@pure
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fun uDictGetPrevOrEqual(self: cell, keyLen: int, pivot: int): (int, slice, bool)
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fun uDictGetPrevOrEqual(self: cell?, keyLen: int, pivot: int): (int?, slice?, bool)
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asm(pivot self keyLen -> 1 0 2) "DICTUGETPREVEQ" "NULLSWAPIFNOT2";
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@ -299,13 +300,13 @@ fun uDictGetPrevOrEqual(self: cell, keyLen: int, pivot: int): (int, slice, bool)
|
|||
*/
|
||||
|
||||
@pure
|
||||
fun prefixDictGet(self: cell, keyLen: int, key: slice): (slice, slice, slice, bool)
|
||||
fun prefixDictGet(self: cell?, keyLen: int, key: slice): (slice, slice?, slice?, bool)
|
||||
asm(key self keyLen) "PFXDICTGETQ" "NULLSWAPIFNOT2";
|
||||
|
||||
@pure
|
||||
fun prefixDictSet(mutate self: cell, keyLen: int, key: slice, value: slice): bool
|
||||
fun prefixDictSet(mutate self: cell?, keyLen: int, key: slice, value: slice): bool
|
||||
asm(value key self keyLen) "PFXDICTSET";
|
||||
|
||||
@pure
|
||||
fun prefixDictDelete(mutate self: cell, keyLen: int, key: slice): bool
|
||||
fun prefixDictDelete(mutate self: cell?, keyLen: int, key: slice): bool
|
||||
asm(key self keyLen) "PFXDICTDEL";
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue