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automatically pass down TypeCheckExprFlags::AllowUnresolvedTypeVariables IFF we have no contextual type. This gives us UnresolvedTypes in more cases, which improves diagnostics in various situations, and also simplifies CSDiag. The change to misc_diagnostics.swift is a particularly nice progression. Swift SVN r31406
80 lines
2.6 KiB
Swift
80 lines
2.6 KiB
Swift
// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// RUN: %target-swift-frontend -emit-module -o %t %S/Inputs/overload_intFunctions.swift
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// RUN: %target-swift-frontend -emit-module -o %t %S/Inputs/overload_boolFunctions.swift
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// RUN: %target-swift-frontend -emit-module -o %t %S/Inputs/overload_vars.swift
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// RUN: %target-swift-frontend -parse %s -I %t -sdk "" -verify
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// RUN: not %target-swift-frontend -dump-ast %s -I %t -sdk "" > %t.astdump 2>&1
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// RUN: FileCheck %s < %t.astdump
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import overload_intFunctions
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import overload_boolFunctions
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import overload_vars
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import var overload_vars.scopedVar
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import func overload_boolFunctions.scopedFunction
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struct LocalType {}
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func something(obj: LocalType) -> LocalType { return obj } // expected-note {{found this candidate}}
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func something(a: Int, _ b: Int, _ c: Int) -> () {} // expected-note {{found this candidate}}
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var _ : Bool = something(true)
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var _ : Int = something(1)
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var _ : (Int, Int) = something(1, 2)
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var _ : LocalType = something(LocalType())
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var _ : () = something(1, 2, 3)
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something = 42 // expected-error {{ambiguous reference to member 'something'}}
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let ambValue = ambiguousWithVar // no-warning - var preferred
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let ambValueChecked: Int = ambValue
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ambiguousWithVar = 42 // no-warning
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ambiguousWithVar(true) // no-warning
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var localVar : Bool
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localVar = false
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localVar = 42 // expected-error {{cannot assign value of type 'Int' to type 'Bool'}}
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localVar(42) // expected-error {{cannot call value of non-function type 'Bool'}}
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var _ : localVar // should still work
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_ = scopedVar // no-warning
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scopedVar(42) // expected-error {{cannot call value of non-function type 'Int'}}
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var _ : Bool = scopedFunction(true)
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var _ : Int = scopedFunction(42)
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scopedFunction = 42 // expected-error {{ambiguous reference to member 'scopedFunction'}}
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// FIXME: Should be an error -- a type name and a function cannot overload.
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var _ : Int = TypeNameWins(42)
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TypeNameWins = 42 // expected-error {{ambiguous reference to member 'TypeNameWins'}}
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var _ : TypeNameWins // no-warning
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// rdar://problem/21739333
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protocol HasFooSub : HasFoo { }
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extension HasFooSub {
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var foo: Int { return 0 }
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}
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// CHECK-LABEL: func_decl "testHasFooSub(_:)"
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func testHasFooSub(hfs: HasFooSub) -> Int {
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// CHECK: return_stmt
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// CHECK-NOT: func_decl
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// CHECK: member_ref_expr{{.*}}decl=overload_vars.(file).HasFoo.foo
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return hfs.foo
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}
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extension HasBar {
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var bar: Int { return 0 }
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}
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// CHECK-LABEL: func_decl "testHasBar(_:)"
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func testHasBar(hb: HasBar) -> Int {
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// CHECK: return_stmt
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// CHECK-NOT: func_decl
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// CHECK: member_ref_expr{{.*}}decl=overload_vars.(file).HasBar.bar
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return hb.bar
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}
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