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5df96a7a6e
The diagnostics engine has some code to pretty-print a declaration when there is no source location for that declaration. The declaration is pretty-printed into a source buffer, and a source location into that buffer is synthesizes. This applies to synthesized declarations as well as those imported from Swift modules (without source code) or from Clang. Reimplement this pretty-printing for declarations as a request. In doing so, change the manner in which we do the printing: the diagnostics engine printed the entire enclosing type into a buffer whose name was the module + that type. This meant that the buffer was shared by every member of that type, but also meant that we would end up deserializing a lot of declarations just for printing and potentially doing a lot more work for these diagnostics.
94 lines
4.1 KiB
Swift
94 lines
4.1 KiB
Swift
#if MODA_NORMAL
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open class ParentClass {
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open func overridableMethodA(param: Int) {}
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open func overridableMethodB(param: Int) {}
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open func overridableMethodC(param: Int) {}
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open func overridableMethodD(param: Int) {}
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}
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#endif
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#if MODA_LOC
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open class ParentClass {
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#sourceLocation(file: "doesnotexist.swift", line: 10)
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open func overridableMethodA(param: Int) {}
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open func overridableMethodB(param: Int) {}
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#sourceLocation(file: "REPLACEDWITHSED", line: 20)
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open func overridableMethodC(param: Int) {}
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open func overridableMethodD(param: Int) {}
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#sourceLocation()
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}
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#endif
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#if MODB
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import moda
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open class SubClass: ParentClass {
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open override func overridableMethodA(param: String) {}
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open override func overridableMethodB(param: String) {}
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open override func overridableMethodC(param: String) {}
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open override func overridableMethodD(param: String) {}
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}
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#endif
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// This test depends on line numbers, hence RUN lines being underneath the
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// code.
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// RUN: %empty-directory(%t)
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// RUN: %empty-directory(%t/mods)
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// RUN: sed -e 's|REPLACEDWITHSED|%/t/alternative.swift|g' %s > %t/moda.swift
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// RUN: %target-swift-frontend -emit-module -emit-module-source-info -o %t/mods/moda.swiftmodule -D MODA_NORMAL %t/moda.swift
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// The diagnostic should have the real location from .swiftsourceinfo
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// RUN: not %target-swift-frontend -typecheck -I %t/mods -D MODB %s 2>&1 | %FileCheck -check-prefix=CHECK-EXISTS %s
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// CHECK-EXISTS: moda.swift:3:13: note
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// CHECK-EXISTS: moda.swift:4:13: note
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// CHECK-EXISTS: moda.swift:5:13: note
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// CHECK-EXISTS: moda.swift:6:13: note
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// Removed the underlying file, so should use the generated source instead
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// RUN: mv %t/moda.swift %t/moda.swift-moved
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// RUN: not %target-swift-frontend -typecheck -I %t/mods -D MODB %s 2>&1 | %FileCheck -check-prefix=CHECK-GENERATED %s
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// CHECK-GENERATED: moda.ParentClass.overridableMethodA:{{.*}}: note:
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// Underlying file has changed, so the locations in .swiftsourceinfo may not
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// make sense any more. Ignored for now (ie. it is used regardless)
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// RUN: echo "// file was modified" > %t/moda.swift
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// RUN: cat %t/moda.swift-moved >> %t/moda.swift
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// RUN: not %target-swift-frontend -typecheck -I %t/mods -D MODB %s 2>&1 | %FileCheck -check-prefix=CHECK-OUTOFDATE %s
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// CHECK-OUTOFDATE-NOT: moda.ParentClass:{{.*}}: note:
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// CHECK-OUTOFDATE: moda.swift:{{.*}}: note:
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// Underlying file is empty, the locations are now completely invalid (ie. not
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// within the buffer). Make sure there's no crash and that we fallback to using
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// the generated source.
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// RUN: rm %t/moda.swift
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// RUN: touch %t/moda.swift
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// RUN: not %target-swift-frontend -typecheck -I %t/mods -D MODB %s 2>&1 | %FileCheck -check-prefix=CHECK-EMPTY %s
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// CHECK-EMPTY: moda.ParentClass.overridableMethodA:{{.*}}: note:
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// The file and line from a location directive should be used whether or not it
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// exists - the actual source still comes from the original file, so that's what
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// matters in terms of whether generated code is used or not
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// RUN: %empty-directory(%t/mods)
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// RUN: mv %t/moda.swift-moved %t/moda.swift
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// RUN: %target-swift-frontend -emit-module -emit-module-source-info -o %t/mods/moda.swiftmodule -D MODA_LOC %t/moda.swift
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// RUN: cp %t/moda.swift %t/alternative.swift
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// RUN: not %target-swift-frontend -typecheck -I %t/mods -D MODB %s 2>&1 | %FileCheck -check-prefix=CHECK-DIRECTIVE %s
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// CHECK-DIRECTIVE: {{^}}doesnotexist.swift:10:13: note
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// CHECK-DIRECTIVE: {{^}}doesnotexist.swift:11:13: note
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// CHECK-DIRECTIVE: alternative.swift:20:13: note
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// CHECK-DIRECTIVE: alternative.swift:21:13: note
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// File in line directive exists, but location does not
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// RUN: mv %t/alternative.swift %t/alternative.swift-moved
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// RUN: echo "" > %t/alternative.swift
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// RUN: not %target-swift-frontend -typecheck -I %t/mods -D MODB %s 2>&1 | %FileCheck -check-prefix=CHECK-DIRECTIVE %s
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// Removed the underlying file, so should use the generated source instead
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// RUN: mv %t/alternative.swift-moved %t/alternative.swift
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// RUN: mv %t/moda.swift %t/moda.swift-moved
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// RUN: not %target-swift-frontend -typecheck -I %t/mods -D MODB %s 2>&1 | %FileCheck -check-prefix=CHECK-GENERATED %s
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