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`macro` declarations often appear in files that does not contain any expansions (e.g. `.swiftinterface`). So invoking `SwiftParser` for the entire file is a waste.
45 lines
1.8 KiB
Swift
45 lines
1.8 KiB
Swift
// REQUIRES: swift_swift_parser
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// This test ensures that we only attempt to parse the syntax tree of a
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// secondary file if the primary file needs it.
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// RUN: %empty-directory(%t)
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// RUN: %empty-directory(%t/stats-no-lookup)
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// RUN: %empty-directory(%t/stats-lookup)
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// RUN: split-file %s %t
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// RUN: %host-build-swift -swift-version 5 -emit-library -o %t/%target-library-name(MacroDefinition) -parse-as-library -module-name=MacroDefinition %S/Inputs/syntax_macro_definitions.swift -g -no-toolchain-stdlib-rpath
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// RUN: %target-swift-frontend -typecheck -swift-version 5 -load-plugin-library %t/%target-library-name(MacroDefinition) -stats-output-dir %t/stats-no-lookup -primary-file %t/b.swift %t/a.swift
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// RUN: %target-swift-frontend -typecheck -swift-version 5 -load-plugin-library %t/%target-library-name(MacroDefinition) -stats-output-dir %t/stats-lookup -primary-file %t/c.swift %t/a.swift
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// We use '<=' here instead of '==' to take account of the fact that in debug
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// builds we'll be doing round-trip checking, which will parse the syntax tree
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// for the primary.
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// RUN: %{python} %utils/process-stats-dir.py --evaluate 'ExportedSourceFileRequest <= 1' %t/stats-no-lookup
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// RUN: %{python} %utils/process-stats-dir.py --evaluate 'ExportedSourceFileRequest <= 2' %t/stats-lookup
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// RUN: %{python} %utils/process-stats-dir.py --evaluate-delta 'ExportedSourceFileRequest == 1' %t/stats-no-lookup %t/stats-lookup
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//--- a.swift
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@attached(
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member,
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names: named(init), named(Storage), named(storage), named(getStorage()), named(method), named(init(other:))
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)
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macro addMembers() = #externalMacro(module: "MacroDefinition", type: "AddMembers")
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@addMembers
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struct S {}
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//--- b.swift
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// No lookup into S, so we don't need to evaluate any macros.
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func foo(_ x: S) {}
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//--- c.swift
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// A lookup into S, we need to parse the syntax tree.
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func foo(_ x: S) {
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_ = x.getStorage()
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}
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