| Safe Haskell | None |
|---|---|
| Language | GHC2021 |
GHC.Wasm.ControlFlow
Synopsis
- data WasmControl a b (c :: [WasmType]) (d :: [WasmType]) where
- WasmPush :: forall (t :: WasmType) b a (c :: [WasmType]). WasmTypeTag t -> b -> WasmControl a b c (t ': c)
- WasmBlock :: forall (c :: [WasmType]) (d :: [WasmType]) a b. WasmFunctionType c d -> WasmControl a b c d -> WasmControl a b c d
- WasmLoop :: forall (c :: [WasmType]) (d :: [WasmType]) a b. WasmFunctionType c d -> WasmControl a b c d -> WasmControl a b c d
- WasmIfTop :: forall (pre :: [WasmType]) (d :: [WasmType]) a b. WasmFunctionType pre d -> WasmControl a b pre d -> WasmControl a b pre d -> WasmControl a b ('I32 ': pre) d
- WasmBr :: forall a b (c :: [WasmType]) (d :: [WasmType]). Int -> WasmControl a b c d
- WasmFallthrough :: forall a b (c :: [WasmType]) (d :: [WasmType]). WasmControl a b c d
- WasmBrTable :: forall b a (c :: [WasmType]) (d :: [WasmType]). b -> BrTableInterval -> [Int] -> Int -> WasmControl a b c d
- WasmTailCall :: forall b a (c :: [WasmType]) (d :: [WasmType]). b -> WasmControl a b c d
- WasmActions :: forall a b (c :: [WasmType]). a -> WasmControl a b c c
- WasmSeq :: forall a b (c :: [WasmType]) (mid :: [WasmType]) (d :: [WasmType]). WasmControl a b c mid -> WasmControl a b mid d -> WasmControl a b c d
- (<>) :: forall s e (pre :: [WasmType]) (mid :: [WasmType]) (post :: [WasmType]). WasmControl s e pre mid -> WasmControl s e mid post -> WasmControl s e pre post
- pattern WasmIf :: WasmFunctionType pre post -> e -> WasmControl s e pre post -> WasmControl s e pre post -> WasmControl s e pre post
- data BrTableInterval = BrTableInterval {}
- inclusiveInterval :: Integer -> Integer -> BrTableInterval
- data WasmType
- data WasmTypeTag (a :: WasmType) where
- TagI32 :: WasmTypeTag 'I32
- TagI64 :: WasmTypeTag 'I64
- TagF32 :: WasmTypeTag 'F32
- TagF64 :: WasmTypeTag 'F64
- data TypeList (a :: [WasmType]) where
- TypeListNil :: TypeList ('[] :: [WasmType])
- TypeListCons :: forall (t :: WasmType) (ts :: [WasmType]). WasmTypeTag t -> TypeList ts -> TypeList (t ': ts)
- data WasmFunctionType (pre :: [WasmType]) (post :: [WasmType]) = WasmFunctionType {}
Documentation
data WasmControl a b (c :: [WasmType]) (d :: [WasmType]) where Source #
Representation of WebAssembly control flow.
Normally written as
WasmControl s e pre post
Type parameter s is the type of (unspecified) statements.
It might be instantiated with an open Cmm block or with a sequence
of Wasm instructions.
Parameter e is the type of expressions.
Parameter pre represents the values that are expected on the
WebAssembly stack when the code runs, and post represents
the state of the stack on completion.
Constructors
| WasmPush :: forall (t :: WasmType) b a (c :: [WasmType]). WasmTypeTag t -> b -> WasmControl a b c (t ': c) | |
| WasmBlock :: forall (c :: [WasmType]) (d :: [WasmType]) a b. WasmFunctionType c d -> WasmControl a b c d -> WasmControl a b c d | |
| WasmLoop :: forall (c :: [WasmType]) (d :: [WasmType]) a b. WasmFunctionType c d -> WasmControl a b c d -> WasmControl a b c d | |
| WasmIfTop :: forall (pre :: [WasmType]) (d :: [WasmType]) a b. WasmFunctionType pre d -> WasmControl a b pre d -> WasmControl a b pre d -> WasmControl a b ('I32 ': pre) d | |
| WasmBr :: forall a b (c :: [WasmType]) (d :: [WasmType]). Int -> WasmControl a b c d | |
| WasmFallthrough :: forall a b (c :: [WasmType]) (d :: [WasmType]). WasmControl a b c d | |
| WasmBrTable :: forall b a (c :: [WasmType]) (d :: [WasmType]). b -> BrTableInterval -> [Int] -> Int -> WasmControl a b c d | |
| WasmTailCall :: forall b a (c :: [WasmType]) (d :: [WasmType]). b -> WasmControl a b c d | |
| WasmActions :: forall a b (c :: [WasmType]). a -> WasmControl a b c c | |
| WasmSeq :: forall a b (c :: [WasmType]) (mid :: [WasmType]) (d :: [WasmType]). WasmControl a b c mid -> WasmControl a b mid d -> WasmControl a b c d |
(<>) :: forall s e (pre :: [WasmType]) (mid :: [WasmType]) (post :: [WasmType]). WasmControl s e pre mid -> WasmControl s e mid post -> WasmControl s e pre post Source #
pattern WasmIf :: WasmFunctionType pre post -> e -> WasmControl s e pre post -> WasmControl s e pre post -> WasmControl s e pre post Source #
data BrTableInterval Source #
Constructors
| BrTableInterval | |
Instances
| Outputable BrTableInterval Source # | |
Defined in GHC.CmmToAsm.Wasm.Types Methods ppr :: BrTableInterval -> SDoc Source # | |
| Show BrTableInterval Source # | |
Defined in GHC.CmmToAsm.Wasm.Types Methods showsPrec :: Int -> BrTableInterval -> ShowS # show :: BrTableInterval -> String # showList :: [BrTableInterval] -> ShowS # | |
inclusiveInterval :: Integer -> Integer -> BrTableInterval Source #
Module : GHC.Wasm.ControlFlow Description : Representation of control-flow portion of the WebAssembly instruction set
WebAssembly type of a WebAssembly value that WebAssembly code could either expect on the evaluation stack or leave on the evaluation stack.
Instances
| TestEquality WasmTypeTag Source # | |
Defined in GHC.CmmToAsm.Wasm.Types Methods testEquality :: forall (a :: WasmType) (b :: WasmType). WasmTypeTag a -> WasmTypeTag b -> Maybe (a :~: b) # | |
data WasmTypeTag (a :: WasmType) where Source #
Singleton type useful for programming with WasmType at the type
level.
Constructors
| TagI32 :: WasmTypeTag 'I32 | |
| TagI64 :: WasmTypeTag 'I64 | |
| TagF32 :: WasmTypeTag 'F32 | |
| TagF64 :: WasmTypeTag 'F64 |
Instances
| TestEquality WasmTypeTag Source # | |
Defined in GHC.CmmToAsm.Wasm.Types Methods testEquality :: forall (a :: WasmType) (b :: WasmType). WasmTypeTag a -> WasmTypeTag b -> Maybe (a :~: b) # | |
| Show (WasmTypeTag t) Source # | |
Defined in GHC.CmmToAsm.Wasm.Types Methods showsPrec :: Int -> WasmTypeTag t -> ShowS # show :: WasmTypeTag t -> String # showList :: [WasmTypeTag t] -> ShowS # | |
data TypeList (a :: [WasmType]) where Source #
List of WebAssembly types used to describe the sequence of WebAssembly values that a block of code may expect on the stack or leave on the stack.
Constructors
| TypeListNil :: TypeList ('[] :: [WasmType]) | |
| TypeListCons :: forall (t :: WasmType) (ts :: [WasmType]). WasmTypeTag t -> TypeList ts -> TypeList (t ': ts) |
data WasmFunctionType (pre :: [WasmType]) (post :: [WasmType]) Source #
The type of a WebAssembly function, loop, block, or conditional. This type says what values the code expects to pop off the stack and what values it promises to push. The WebAssembly standard requires that this type appear explicitly in the code.
Constructors
| WasmFunctionType | |