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RequirementMachine: Add some testcases
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‎test/Generics/rdar33654588.swift‎

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// RUN: %target-typecheck-verify-swift -requirement-machine-protocol-signatures=on 2>&1
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protocol FP {}
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protocol FPSign {
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associatedtype Positive: FPIntDigit
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associatedtype Negative: FPIntDigit
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}
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protocol FPIntDigit: FP {
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associatedtype Zero: FPIntDigit, FPPoint, FPExponent
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associatedtype One: FPIntDigit, FPPoint, FPExponent
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associatedtype Two: FPIntDigit, FPPoint, FPExponent
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associatedtype Three: FPIntDigit, FPPoint, FPExponent
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associatedtype Four: FPIntDigit, FPPoint, FPExponent
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associatedtype Five: FPIntDigit, FPPoint, FPExponent
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associatedtype Six: FPIntDigit, FPPoint, FPExponent
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associatedtype Seven: FPIntDigit, FPPoint, FPExponent
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associatedtype Eight: FPIntDigit, FPPoint, FPExponent
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associatedtype Nine: FPIntDigit, FPPoint, FPExponent
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}
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protocol FPPoint: FP {
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associatedtype Point: FPFractionDigit, FPExponent
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}
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protocol FPFractionDigit: FP {
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associatedtype Zero: FPFractionDigit, FPExponent
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associatedtype One: FPFractionDigit, FPExponent
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associatedtype Two: FPFractionDigit, FPExponent
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associatedtype Three: FPFractionDigit, FPExponent
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associatedtype Four: FPFractionDigit, FPExponent
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associatedtype Five: FPFractionDigit, FPExponent
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associatedtype Six: FPFractionDigit, FPExponent
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associatedtype Seven: FPFractionDigit, FPExponent
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associatedtype Eight: FPFractionDigit, FPExponent
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associatedtype Nine: FPFractionDigit, FPExponent
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}
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protocol FPExponent {
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associatedtype E: FPExponentSign, FPExponentDigit
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}
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protocol FPExponentSign {
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associatedtype Positive: FPExponentDigit
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associatedtype Negative: FPExponentDigit
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}
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protocol FPExponentDigit: FP {
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associatedtype Zero: FPExponentDigit
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associatedtype One: FPExponentDigit
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associatedtype Two: FPExponentDigit
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associatedtype Three: FPExponentDigit
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associatedtype Four: FPExponentDigit
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associatedtype Five: FPExponentDigit
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associatedtype Six: FPExponentDigit
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associatedtype Seven: FPExponentDigit
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associatedtype Eight: FPExponentDigit
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associatedtype Nine: FPExponentDigit
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}
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‎test/Generics/rdar65015626.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: 65015626.(file).G@
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// CHECK-NEXT: Requirement signature: <Self where Self.Word : FixedWidthInteger, Self.Word == Self.Word.Magnitude>
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public protocol G {
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associatedtype Word: FixedWidthInteger where Word.Magnitude == Word
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}

‎test/Generics/rdar68084643.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: 68084643.(file).R@
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// CHECK-NEXT: Requirement signature: <Self where Self.RT : F>
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protocol R {
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associatedtype RT: F
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}
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// CHECK: 68084643.(file).F@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.OT.RT, Self.OT : R>
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protocol F {
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associatedtype OT: R where OT.RT == Self
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}
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// CHECK: 68084643.(file).P@
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// CHECK-NEXT: Requirement signature: <Self>
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protocol P {
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associatedtype PT
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}
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// CHECK: 68084643.(file).O@
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// CHECK-NEXT: Requirement signature: <Self where Self.O : P>
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protocol O {
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associatedtype O: P
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}
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// CHECK: 68084643.(file).B@
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// CHECK-NEXT: Requirement signature: <Self where Self.LO : O, Self.OT == Self.LO.O, Self.RT : F, Self.OT.PT == Self.RT.OT>
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protocol B {
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associatedtype RT: F
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associatedtype LO: O where LO.O == OT
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associatedtype OT where OT.PT == RT.OT
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}
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// CHECK: 68084643.(file).Boom@
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// CHECK-NEXT: Requirement signature: <Self where Self.D : B, Self.E : Sequence, Self.F : Sequence, Self.E.Element == Self.F.Element>
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protocol Boom {
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associatedtype D: B
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associatedtype E: Sequence
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associatedtype F: Sequence where E.Element == F.Element
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}

‎test/Generics/rdar78643612.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: 78643612.(file).Z1@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.T>
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protocol Z1 {
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associatedtype T where T == Self
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}
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// CHECK: 78643612.(file).Z2@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.T.T, Self.T : Z2>
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protocol Z2 {
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associatedtype T : Z2 where T.T == Self
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}
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// CHECK: 78643612.(file).Z3@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.T.T.T, Self.T : Z3>
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protocol Z3 {
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associatedtype T : Z3 where T.T.T == Self
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}
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// CHECK: 78643612.(file).Z4@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.T.T.T.T, Self.T : Z4>
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protocol Z4 {
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associatedtype T : Z4 where T.T.T.T == Self
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}
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// CHECK: 78643612.(file).Z5@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.T.T.T.T.T, Self.T : Z5>
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protocol Z5 {
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associatedtype T : Z5 where T.T.T.T.T == Self
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}
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// CHECK: 78643612.(file).Z6@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.T.T.T.T.T.T, Self.T : Z6>
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protocol Z6 {
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associatedtype T : Z6 where T.T.T.T.T.T == Self
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}
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‎test/Generics/rdar83308672.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: rdar83308672.(file).A@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.X.T, Self.X : P1, Self.Y : P2>
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protocol A {
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associatedtype X : P1
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associatedtype Y : P2
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where X.T == Self
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}
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// CHECK: rdar83308672.(file).P1@
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// CHECK-NEXT: Requirement signature: <Self>
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protocol P1 {
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associatedtype T
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}
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// CHECK: rdar83308672.(file).P2@
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// CHECK-NEXT: Requirement signature: <Self where Self.T : B>
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protocol P2 {
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associatedtype T : B
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}
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// CHECK: rdar83308672.(file).B@
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// CHECK-NEXT: Requirement signature: <Self where Self.X == Self.Y>
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protocol B {
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associatedtype X
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associatedtype Y
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where X == Y
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}
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// Note that T.X == T.Y implies T : B, but also T : B implies T.X == T.Y;
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// we can drop one requirement but not both.
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//
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// If T : B was explicitly stated, we drop T.X == T.Y; otherwise we keep
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// T.X == T.Y and drop T : B.
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// CHECK: rdar83308672.(file).G1@
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// CHECK-NEXT: Requirement signature: <Self where Self.T : A, Self.T.X == Self.T.Y>
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protocol G1 {
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associatedtype T : A where T.X == T.Y
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}
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// CHECK: rdar83308672.(file).G2@
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// CHECK-NEXT: Requirement signature: <Self where Self.T : A, Self.T : B>
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protocol G2 {
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associatedtype T : A where T : B, T.X == T.Y
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}
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// CHECK: rdar83308672.(file).G3@
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// CHECK-NEXT: Requirement signature: <Self where Self.T : A, Self.T : B>
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protocol G3 {
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associatedtype T : A where T.X == T.Y, T : B
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}
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// CHECK: rdar83308672.(file).G4@
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// CHECK-NEXT: Requirement signature: <Self where Self.T : A, Self.T : B>
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protocol G4 {
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associatedtype T : A where T : B
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}

‎test/Generics/rdar83848546.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: 83848546.(file).Reporter@
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// CHECK-NEXT: Requirement signature: <Self where Self.SubReporterType : SubReporter>
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protocol Reporter {
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associatedtype SubReporterType: SubReporter
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func makeSubReporter() -> SubReporterType
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}
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// CHECK: 83848546.(file).SubReporter@
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// CHECK-NEXT: Requirement signature: <Self where Self.SubReporterType : SubReporter>
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protocol SubReporter {
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associatedtype SubReporterType: SubReporter
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func makeSubReporter() -> SubReporterType
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}
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// CHECK: 83848546.(file).CausesCompilerCrash@
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// CHECK-NEXT: Requirement signature: <Self where Self.ReporterType : Reporter, Self.SubReporterType == Self.ReporterType.SubReporterType, Self.ReporterType.SubReporterType == Self.SubReporterType.SubReporterType>
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protocol CausesCompilerCrash {
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associatedtype ReporterType: Reporter
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associatedtype SubReporterType
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where ReporterType.SubReporterType == SubReporterType,
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SubReporterType.SubReporterType == SubReporterType
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}
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// CHECK: 83848546.(file).DoesNotCrash@
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// CHECK-NEXT: Requirement signature: <Self where Self.ReporterType : Reporter, Self.ReporterType.SubReporterType == Self.ReporterType.SubReporterType.SubReporterType>
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protocol DoesNotCrash {
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associatedtype ReporterType: Reporter
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where ReporterType.SubReporterType == ReporterType.SubReporterType.SubReporterType
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}

‎test/Generics/rdar83955123.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: rdar83955123.(file).Cyclo@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.L.R, Self.D : Cyclo, Self.L : Cyclo, Self.R : Cyclo, Self.U : Cyclo, Self.L.R == Self.U.D>
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protocol Cyclo {
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associatedtype L: Cyclo
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associatedtype R: Cyclo
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associatedtype U: Cyclo
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associatedtype D: Cyclo
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where L.R == Self,
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U.D == Self
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}

‎test/Generics/sr10438.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: sr10438.(file).AuthenticationFlowStateMachine@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.FlowError.StateMachine, Self.FlowError : AuthenticationFlowStateMachineFlowError, Self.NonFinalState : AuthenticationFlowStateMachineNonFinalState, Self.StartState : AuthenticationFlowStateMachineStartState, Self.FlowError.StateMachine == Self.NonFinalState.StateMachine, Self.NonFinalState.StateMachine == Self.StartState.StateMachine>
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protocol AuthenticationFlowStateMachine {
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associatedtype StartState: AuthenticationFlowStateMachineStartState where StartState.StateMachine == Self
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associatedtype NonFinalState: AuthenticationFlowStateMachineNonFinalState where NonFinalState.StateMachine == Self
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associatedtype FlowError: AuthenticationFlowStateMachineFlowError where FlowError.StateMachine == Self
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}
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// CHECK: sr10438.(file).AuthenticationFlowStateMachineFlowError@
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// CHECK-NEXT: Requirement signature: <Self where Self : Error, Self == Self.StateMachine.FlowError, Self.StateMachine : AuthenticationFlowStateMachine>
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protocol AuthenticationFlowStateMachineFlowError: Error {
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associatedtype StateMachine: AuthenticationFlowStateMachine where StateMachine.FlowError == Self
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}
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// CHECK: sr10438.(file).AuthenticationFlowStateMachineStartState@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.StateMachine.StartState, Self.StateMachine : AuthenticationFlowStateMachine>
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protocol AuthenticationFlowStateMachineStartState {
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associatedtype StateMachine: AuthenticationFlowStateMachine where StateMachine.StartState == Self
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var nonFinalState: StateMachine.NonFinalState { get }
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}
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// CHECK: sr10438.(file).AuthenticationFlowStateMachineNonFinalState@
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// CHECK-NEXT: Requirement signature: <Self where Self == Self.StateMachine.NonFinalState, Self.StateMachine : AuthenticationFlowStateMachine>
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protocol AuthenticationFlowStateMachineNonFinalState {
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associatedtype StateMachine: AuthenticationFlowStateMachine where StateMachine.NonFinalState == Self
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}

‎test/Generics/sr10532.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: sr10532.(file).ScalarProtocol@
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// CHECK-NEXT: Requirement signature: <Self where Self : ScalarMultiplicative, Self == Self.Scalar>
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public protocol ScalarProtocol: ScalarMultiplicative where Self == Scalar { }
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// CHECK: sr10532.(file).ScalarMultiplicative@
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// CHECK-NEXT: Requirement signature: <Self where Self.Scalar : ScalarProtocol>
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public protocol ScalarMultiplicative {
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associatedtype Scalar : ScalarProtocol
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}
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// CHECK: sr10532.(file).MapReduceArithmetic@
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// CHECK-NEXT: Requirement signature: <Self where Self : Collection, Self : ScalarMultiplicative, Self.Element : ScalarMultiplicative, Self.Scalar == Self.Element.Scalar>
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public protocol MapReduceArithmetic : ScalarMultiplicative, Collection where Element : ScalarMultiplicative, Scalar == Element.Scalar { }
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// CHECK: sr10532.(file).Tensor@
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// CHECK-NEXT: Requirement signature: <Self where Self : MapReduceArithmetic, Self.Element : BinaryFloatingPoint, Self.Element : ScalarProtocol>
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public protocol Tensor : MapReduceArithmetic where Scalar : BinaryFloatingPoint, Element == Scalar {
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var magnitude: Scalar { get set }
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}
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extension Tensor {
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public var magnitude: Scalar {
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return self.reduce(0) { $0 + $1 * $1 }.squareRoot()
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}
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}

‎test/Generics/sr10752.swift‎

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// RUN: %target-typecheck-verify-swift -debug-generic-signatures -requirement-machine-protocol-signatures=on 2>&1 | %FileCheck %s
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// CHECK: sr10752.(file).P@
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// CHECK-NEXT: Requirement signature: <Self where Self.A : P, Self.A == Self.A.A>
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protocol P {
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associatedtype A : P where A.A == A
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}
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// CHECK: sr10752.(file).Q@
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// CHECK-NEXT: Requirement signature: <Self where Self.A == Self.C.A, Self.C : P>
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protocol Q {
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associatedtype A : P
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associatedtype C : P where A == C.A
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}

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