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swift-mirror/test/AutoDiff/Syntax/Outputs/round_trip_parse_gen.swift.withkinds
Richard Wei af8942d940 [AutoDiff] Rename '@differentiable' to '@differentiable(reverse)'. 
Compiler:
- Add `Forward` and `Reverse` to `DifferentiabilityKind`.
- Expand `DifferentiabilityMask` in `ExtInfo` to 3 bits so that it now holds all 4 cases of `DifferentiabilityKind`.
- Parse `@differentiable(reverse)` and `@differentiable(_forward)` declaration attributes and type attributes.
- Emit a warning for `@differentiable` without `reverse`.
- Emit an error for `@differentiable(_forward)`.
- Rename `@differentiable(linear)` to `@differentiable(_linear)`.
- Make `@differentiable(reverse)` type lowering go through today's `@differentiable` code path. We will specialize it to reverse-mode in a follow-up patch.

ABI:
- Add `Forward` and `Reverse` to `FunctionMetadataDifferentiabilityKind`.
- Extend `TargetFunctionTypeFlags` by 1 bit to store the highest bit of differentiability kind (linear). Note that there is a 2-bit gap in `DifferentiabilityMask` which is reserved for `AsyncMask` and `ConcurrentMask`; `AsyncMask` is ABI-stable so we cannot change that.

_Differentiation module:
- Replace all occurrences of `@differentiable` with `@differentiable(reverse)`.
- Delete `_transpose(of:)`.

Resolves rdar://69980056.
2021-02-07 14:09:46 -08:00

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<FunctionDecl><Attribute>// RUN: rm -rf %t
// RUN: %swift-syntax-test -input-source-filename %s -parse-gen > %t
// RUN: diff -u %s %t
// RUN: %swift-syntax-test -input-source-filename %s -parse-gen -print-node-kind > %t.withkinds
// RUN: diff -u %S/Outputs/round_trip_parse_gen.swift.withkinds %t.withkinds
// RUN: %swift-syntax-test -input-source-filename %s -eof > %t
// RUN: diff -u %s %t
// RUN: %swift-syntax-test -serialize-raw-tree -input-source-filename %s > %t.dump
// RUN: %swift-syntax-test -deserialize-raw-tree -input-source-filename %t.dump -output-filename %t
// RUN: diff -u %s %t
// Note: RUN lines copied from test/Syntax/round_trip_parse_gen.swift.
@differentiable(<DifferentiableAttributeArguments>reverse</DifferentiableAttributeArguments>)</Attribute>
func bar<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>_: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <SimpleTypeIdentifier>Float </SimpleTypeIdentifier></ReturnClause></FunctionSignature><CodeBlock>{ <ReturnStmt>return <IntegerLiteralExpr>1 </IntegerLiteralExpr></ReturnStmt>}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@differentiable(<DifferentiableAttributeArguments>reverse <GenericWhereClause>where <GenericRequirement><ConformanceRequirement><SimpleTypeIdentifier>T </SimpleTypeIdentifier>: <SimpleTypeIdentifier>FloatingPoint</SimpleTypeIdentifier></ConformanceRequirement></GenericRequirement></GenericWhereClause></DifferentiableAttributeArguments>)</Attribute>
func bar<GenericParameterClause><<GenericParameter>T : <SimpleTypeIdentifier>Numeric</SimpleTypeIdentifier></GenericParameter>></GenericParameterClause><FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>T</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>_: <SimpleTypeIdentifier>T</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <SimpleTypeIdentifier>T </SimpleTypeIdentifier></ReturnClause></FunctionSignature><CodeBlock>{ <ReturnStmt>return <IntegerLiteralExpr>1 </IntegerLiteralExpr></ReturnStmt>}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@differentiable(<DifferentiableAttributeArguments>reverse, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParam>x</DifferentiabilityParam></DifferentiabilityParamsClause></DifferentiableAttributeArguments>)</Attribute>
func bar<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>_: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <SimpleTypeIdentifier>Float </SimpleTypeIdentifier></ReturnClause></FunctionSignature><CodeBlock>{ <ReturnStmt>return <IntegerLiteralExpr>1 </IntegerLiteralExpr></ReturnStmt>}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@differentiable(<DifferentiableAttributeArguments>reverse, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>self, </DifferentiabilityParam><DifferentiabilityParam>x, </DifferentiabilityParam><DifferentiabilityParam>y</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DifferentiableAttributeArguments>)</Attribute>
func bar<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <SimpleTypeIdentifier>Float </SimpleTypeIdentifier></ReturnClause></FunctionSignature><CodeBlock>{ <ReturnStmt>return <IntegerLiteralExpr>1 </IntegerLiteralExpr></ReturnStmt>}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@differentiable(<DifferentiableAttributeArguments>reverse, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>self, </DifferentiabilityParam><DifferentiabilityParam>x, </DifferentiabilityParam><DifferentiabilityParam>y</DifferentiabilityParam>) </DifferentiabilityParams></DifferentiabilityParamsClause><GenericWhereClause>where <GenericRequirement><ConformanceRequirement><SimpleTypeIdentifier>T </SimpleTypeIdentifier>: <SimpleTypeIdentifier>FloatingPoint</SimpleTypeIdentifier></ConformanceRequirement></GenericRequirement></GenericWhereClause></DifferentiableAttributeArguments>)</Attribute>
func bar<GenericParameterClause><<GenericParameter>T : <SimpleTypeIdentifier>Numeric</SimpleTypeIdentifier></GenericParameter>></GenericParameterClause><FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>T</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>T</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <SimpleTypeIdentifier>T </SimpleTypeIdentifier></ReturnClause></FunctionSignature><CodeBlock>{ <ReturnStmt>return <IntegerLiteralExpr>1 </IntegerLiteralExpr></ReturnStmt>}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>-</QualifiedDeclName></DerivativeRegistrationAttributeArguments>)</Attribute>
func negateDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>x</IdentifierExpr></PrefixOperatorExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><PrefixOperatorExpr>-<IdentifierExpr>v </IdentifierExpr></PrefixOperatorExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>baz<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>x</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func bazDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>x</IdentifierExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><IdentifierExpr>v </IdentifierExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>baz<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>.set, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>x</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func bazSetDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>x</IdentifierExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><IdentifierExpr>v </IdentifierExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>baz<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>.get, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>x</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func bazGetDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>x</IdentifierExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><IdentifierExpr>v </IdentifierExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>-</QualifiedDeclName></DerivativeRegistrationAttributeArguments>)</Attribute>
func negateDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>x</IdentifierExpr></PrefixOperatorExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><PrefixOperatorExpr>-<IdentifierExpr>v </IdentifierExpr></PrefixOperatorExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>baz<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>x</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func bazDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>x</IdentifierExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><IdentifierExpr>v </IdentifierExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><MemberTypeIdentifier><MemberTypeIdentifier><SimpleTypeIdentifier>A<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>T</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></SimpleTypeIdentifier>.B<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>U</SimpleTypeIdentifier>, </GenericArgument><GenericArgument><SimpleTypeIdentifier>V</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></MemberTypeIdentifier>.C</MemberTypeIdentifier>.foo<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParam>x</DifferentiabilityParam></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func qualifiedDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>x</IdentifierExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><IdentifierExpr>v </IdentifierExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><MemberTypeIdentifier><MemberTypeIdentifier><SimpleTypeIdentifier>A<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>T</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></SimpleTypeIdentifier>.B<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>U</SimpleTypeIdentifier>, </GenericArgument><GenericArgument><SimpleTypeIdentifier>V</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></MemberTypeIdentifier>.C</MemberTypeIdentifier>.foo<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>.get, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParam>x</DifferentiabilityParam></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func qualifiedGetDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>x</IdentifierExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><IdentifierExpr>v </IdentifierExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><MemberTypeIdentifier><MemberTypeIdentifier><SimpleTypeIdentifier>A<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>T</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></SimpleTypeIdentifier>.B<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>U</SimpleTypeIdentifier>, </GenericArgument><GenericArgument><SimpleTypeIdentifier>V</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></MemberTypeIdentifier>.C</MemberTypeIdentifier>.foo<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>.set, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParam>x</DifferentiabilityParam></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func qualifiedSetDerivative<FunctionSignature><ParameterClause>(<FunctionParameter>_ x: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </FunctionParameter><FunctionParameter>y: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>)</ParameterClause><ReturnClause>
-> <TupleType>(<TupleTypeElement>value: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement>pullback: <FunctionType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) -> <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionType></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>x</IdentifierExpr>, </TupleExprElement><TupleExprElement><ClosureExpr>{ <ClosureSignature><ClosureParam>v </ClosureParam>in </ClosureSignature><IdentifierExpr>v </IdentifierExpr>}</ClosureExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>+</QualifiedDeclName></DerivativeRegistrationAttributeArguments>)</Attribute>
func addTranspose<FunctionSignature><ParameterClause>(<FunctionParameter>_ v: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <TupleType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>v</IdentifierExpr>, </TupleExprElement><TupleExprElement><IdentifierExpr>v</IdentifierExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>-</QualifiedDeclName>, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>0, </DifferentiabilityParam><DifferentiabilityParam>1</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func subtractTranspose<FunctionSignature><ParameterClause>(<FunctionParameter>_ v: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <TupleType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>v</IdentifierExpr>, </TupleExprElement><TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>v</IdentifierExpr></PrefixOperatorExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>.-</QualifiedDeclName>, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>0, </DifferentiabilityParam><DifferentiabilityParam>1</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func subtractTranspose<FunctionSignature><ParameterClause>(<FunctionParameter>_ v: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <TupleType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>v</IdentifierExpr>, </TupleExprElement><TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>v</IdentifierExpr></PrefixOperatorExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>.-</QualifiedDeclName>.get, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>0, </DifferentiabilityParam><DifferentiabilityParam>1</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func subtractGetTranspose<FunctionSignature><ParameterClause>(<FunctionParameter>_ v: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <TupleType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>v</IdentifierExpr>, </TupleExprElement><TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>v</IdentifierExpr></PrefixOperatorExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>.-</QualifiedDeclName>.set, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>0, </DifferentiabilityParam><DifferentiabilityParam>1</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func subtractSetTranspose<FunctionSignature><ParameterClause>(<FunctionParameter>_ v: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <TupleType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>v</IdentifierExpr>, </TupleExprElement><TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>v</IdentifierExpr></PrefixOperatorExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><MemberTypeIdentifier><MemberTypeIdentifier><SimpleTypeIdentifier>A<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>T</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></SimpleTypeIdentifier>.B<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>U</SimpleTypeIdentifier>, </GenericArgument><GenericArgument><SimpleTypeIdentifier>V</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></MemberTypeIdentifier>.C</MemberTypeIdentifier>.foo<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParam>0</DifferentiabilityParam></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func qualifiedTranspose<FunctionSignature><ParameterClause>(<FunctionParameter>_ v: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <TupleType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>v</IdentifierExpr>, </TupleExprElement><TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>v</IdentifierExpr></PrefixOperatorExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName><MemberTypeIdentifier><MemberTypeIdentifier><SimpleTypeIdentifier>A<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>T</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></SimpleTypeIdentifier>.B<GenericArgumentClause><<GenericArgument><SimpleTypeIdentifier>U</SimpleTypeIdentifier>, </GenericArgument><GenericArgument><SimpleTypeIdentifier>V</SimpleTypeIdentifier></GenericArgument>></GenericArgumentClause></MemberTypeIdentifier>.C</MemberTypeIdentifier>.foo<DeclNameArguments>(<DeclNameArgument>label:</DeclNameArgument><DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>.get, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParam>0</DifferentiabilityParam></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func qualifiedGetTranspose<FunctionSignature><ParameterClause>(<FunctionParameter>_ v: <SimpleTypeIdentifier>Float</SimpleTypeIdentifier></FunctionParameter>) </ParameterClause><ReturnClause>-> <TupleType>(<TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier>, </TupleTypeElement><TupleTypeElement><SimpleTypeIdentifier>Float</SimpleTypeIdentifier></TupleTypeElement>) </TupleType></ReturnClause></FunctionSignature><CodeBlock>{<ReturnStmt>
return <TupleExpr>(<TupleExprElement><IdentifierExpr>v</IdentifierExpr>, </TupleExprElement><TupleExprElement><PrefixOperatorExpr>-<IdentifierExpr>v</IdentifierExpr></PrefixOperatorExpr></TupleExprElement>)</TupleExpr></ReturnStmt>
}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@derivative(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>subscript<DeclNameArguments>(<DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>.set, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>self, </DifferentiabilityParam><DifferentiabilityParam>newValue</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments>)</Attribute>
func subscriptSetterDerivative<FunctionSignature><ParameterClause>() </ParameterClause></FunctionSignature><CodeBlock>{}</CodeBlock></FunctionDecl><FunctionDecl><Attribute>
@transpose(<DerivativeRegistrationAttributeArguments>of: <QualifiedDeclName>subscript<DeclNameArguments>(<DeclNameArgument>_:</DeclNameArgument>)</DeclNameArguments></QualifiedDeclName>.set, <DifferentiabilityParamsClause>wrt: <DifferentiabilityParams>(<DifferentiabilityParam>self, </DifferentiabilityParam><DifferentiabilityParam>0</DifferentiabilityParam>)</DifferentiabilityParams></DifferentiabilityParamsClause></DerivativeRegistrationAttributeArguments></Attribute>
func subscriptSetterTranspose<FunctionSignature><ParameterClause>() </ParameterClause></FunctionSignature><CodeBlock>{}</CodeBlock></FunctionDecl>
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