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Currently symbol graphs are always written in files that contain 1 to 2 module names. It's possible for Swift module names to be very long, so combining 2 of them in file name like `module1@module2...` in the same path component means the name can be too long for some file systems. The new option `-symbol-graph-shorten-output-names` changes the symbol graph output files to use a MD5 hash of the module name(s) as the filename and outputs an additional JSON file with the original names mapped to the real filename. The module names JSON can be used to construct a VFS overlay with the original naming scheme. fix #83723 I considered using vfsoverlay, which seems like a viable solution, but the vfsoverlay options don't seem to apply to any of the outputs from the compiler. When I set an overlay to remap the symbol graph file outputs, the remapped external paths aren't used so the root problem of too long file names remains.
34 lines
2.0 KiB
Swift
34 lines
2.0 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift %s -module-name EmitShortenedNames -emit-module -emit-module-path %t/EmitShortenedNames.swiftmodule -emit-symbol-graph -emit-symbol-graph-dir %t/ -symbol-graph-shorten-output-names
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// RUN: %FileCheck %s --input-file %t/9d0ee7243b44e35c186695a49461007b.symbols.json --check-prefix BASE
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// RUN: %FileCheck %s --input-file %t/27a36c452b5f5e2b488b7755cecf40c7.symbols.json --check-prefix EXT
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// RUN: %FileCheck %s --input-file %t/symbol_modules.json --check-prefix MAP
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// now try with the swift-symbolgraph-extract tool directly
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// RUN: %empty-directory(%t)
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// RUN: %target-build-swift %s -module-name EmitShortenedNames -emit-module -emit-module-path %t/EmitShortenedNames.swiftmodule
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// RUN: %target-swift-symbolgraph-extract -module-name EmitShortenedNames -I %t -output-dir %t -symbol-graph-shorten-output-names
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// RUN: %FileCheck %s --input-file %t/9d0ee7243b44e35c186695a49461007b.symbols.json --check-prefix BASE
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// RUN: %FileCheck %s --input-file %t/27a36c452b5f5e2b488b7755cecf40c7.symbols.json --check-prefix EXT
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// RUN: %FileCheck %s --input-file %t/symbol_modules.json --check-prefix MAP
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// now try with the swiftc driver
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// RUN: %empty-directory(%t)
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// RUN: %target-swiftc_driver %s -module-name EmitShortenedNames -emit-module -emit-module-path %t/EmitShortenedNames.swiftmodule -emit-symbol-graph -emit-symbol-graph-dir %t/ -symbol-graph-shorten-output-names
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// RUN: %FileCheck %s --input-file %t/9d0ee7243b44e35c186695a49461007b.symbols.json --check-prefix BASE
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// RUN: %FileCheck %s --input-file %t/27a36c452b5f5e2b488b7755cecf40c7.symbols.json --check-prefix EXT
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// RUN: %FileCheck %s --input-file %t/symbol_modules.json --check-prefix MAP
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public func foo() {}
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extension Sequence {
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public func bar() {}
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}
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// BASE: "precise":"s:18EmitShortenedNames3fooyyF"
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// EXT: "precise":"s:ST18EmitShortenedNamesE3baryyF"
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// MAP: "EmitShortenedNames":"9d0ee7243b44e35c186695a49461007b.symbols.json",
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// MAP: "EmitShortenedNames@Swift":"27a36c452b5f5e2b488b7755cecf40c7.symbols.json"
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