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d7e0e15090
system has been "solved", meaning that all type variables have been bound to concrete types or are completely free. Add the solvedness of a particular system to the debug output. Start adding some simple test cases. Swift SVN r2706
83 lines
2.3 KiB
Swift
83 lines
2.3 KiB
Swift
// RUN: %swift -repl < %s 2>&1 | FileCheck %s
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func f0(_ : Float) -> Float {}
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func f0(_ : Int) -> Int {}
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func f1(_ : Int) {}
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var i : Int
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// Overload resolution based on argument type.
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// CHECK: Constraints
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// CHECK: $T0 == $T1 -> $T2
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// CHECK: [byref(heap)] Int << $T1
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// CHECK: Unresolved overload sets:
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// CHECK: set #0 binds $T0:
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// CHECK: f0: Float -> Float
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// CHECK: f0: Int -> Int
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// CHECK: ---Child system #1---
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// CHECK: Assumptions:
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// CHECK: selected overload set #0 choice #1 for f0: $T0 == Int -> Int
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// CHECK: Type Variables:
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// CHECK: $T0 as $T1 -> $T2
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// CHECK: $T1 as Int64
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// CHECK: $T2 as Int64
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// CHECK: SOLVED (completely)
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:dump_constraints(f0(i))
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// Overload resolution based on literalness
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// CHECK: Constraints:
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// CHECK: $T1 is an float literal
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// CHECK: $T0 == $T2 -> $T3
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// CHECK: $T1 << $T2
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// CHECK: Unresolved overload sets:
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// CHECK: set #0 binds $T0:
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// CHECK: f0: Float -> Float
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// CHECK: f0: Int -> Int
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// CHECK: ---Child system #1---
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// CHECK: Assumptions:
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// CHECK: selected overload set #0 choice #0 for f0: $T0 == Float -> Float
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// CHECK: assuming $T2 == Float
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// CHECK: Type Variables:
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// CHECK: $T0 as $T2 -> $T3
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// CHECK: $T1 as Float
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// CHECK: $T2 as Float
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// CHECK: $T3 as Float
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// CHECK: SOLVED (completely)
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:dump_constraints(f0(1.0))
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// Failed resolution based on literalness
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// FIXME: This will eventually resolve based on the 'default' integer literal
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// FIXME: type.
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// CHECK: Constraints:
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// CHECK: $T1 is an integer literal
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// CHECK: $T0 == $T2 -> $T3
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// CHECK: $T1 << $T2
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// CHECK: Unresolved overload sets:
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// CHECK: set #0 binds $T0:
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// CHECK: f0: Float -> Float
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// CHECK: f0: Int -> Int
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// CHECK: ---Child system #1---
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// CHECK: Assumptions:
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// CHECK: selected overload set #0 choice #0 for f0: $T0 == Float -> Float
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// CHECK: assuming $T2 == Float
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// CHECK: Type Variables:
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// CHECK: $T0 as $T2 -> $T3
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// CHECK: $T1 as Float
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// CHECK: $T2 as Float
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// CHECK: $T3 as Float
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// CHECK: SOLVED (completely)
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// CHECK: ---Child system #2---
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// CHECK: Assumptions:
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// CHECK: selected overload set #0 choice #1 for f0: $T0 == Int -> Int
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// CHECK: assuming $T2 == Int64
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// CHECK: Type Variables:
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// CHECK: $T0 as $T2 -> $T3
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// CHECK: $T1 as Int64
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// CHECK: $T2 as Int64
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// CHECK: $T3 as Int64
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// CHECK: SOLVED (completely)
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:dump_constraints(f0(1))
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