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| 1 | +package dotty.tools.dotc.profile |
| 2 | + |
| 3 | +import org.junit.Assert.* |
| 4 | +import org.junit.* |
| 5 | + |
| 6 | +import scala.annotation.tailrec |
| 7 | +import dotty.tools.DottyTest |
| 8 | +import dotty.tools.dotc.util.SourceFile |
| 9 | +import dotty.tools.dotc.core.Contexts.FreshContext |
| 10 | +import java.nio.file.Files |
| 11 | +import java.util.Locale |
| 12 | + |
| 13 | +class TraceNameManglingTest extends DottyTest { |
| 14 | + |
| 15 | + override protected def initializeCtx(fc: FreshContext): Unit = { |
| 16 | + super.initializeCtx(fc) |
| 17 | + val tmpDir = Files.createTempDirectory("trace_name_mangling_test").nn |
| 18 | + fc.setSetting(fc.settings.YprofileEnabled, true) |
| 19 | + fc.setSetting( |
| 20 | + fc.settings.YprofileTrace, |
| 21 | + tmpDir.resolve("trace.json").nn.toAbsolutePath().toString() |
| 22 | + ) |
| 23 | + fc.setSetting( |
| 24 | + fc.settings.YprofileDestination, |
| 25 | + tmpDir.resolve("profiler.out").nn.toAbsolutePath().toString() |
| 26 | + ) |
| 27 | + } |
| 28 | + |
| 29 | + @Test def escapeBackslashes(): Unit = { |
| 30 | + val isWindows = sys.props("os.name").toLowerCase(Locale.ROOT) == "windows" |
| 31 | + val filename = if isWindows then "/.scala" else "\\.scala" |
| 32 | + checkTraceEvents( |
| 33 | + """ |
| 34 | + |class /\ : |
| 35 | + | var /\ = ??? |
| 36 | + |object /\{ |
| 37 | + | def /\ = ??? |
| 38 | + |}""".stripMargin, |
| 39 | + filename = filename |
| 40 | + )( |
| 41 | + Set( |
| 42 | + raw"class /\\", |
| 43 | + raw"object /\\", |
| 44 | + raw"method /\\", |
| 45 | + raw"variable /\\", |
| 46 | + raw"setter /\\_=" |
| 47 | + ).map(TraceEvent("typecheck", _)) |
| 48 | + ++ Set( |
| 49 | + TraceEvent("file", if isWindows then "/.scala" else "\\\\.scala") |
| 50 | + ) |
| 51 | + ) |
| 52 | + } |
| 53 | + |
| 54 | + @Test def escapeDoubleQuotes(): Unit = { |
| 55 | + val filename = "\"quoted\".scala" |
| 56 | + checkTraceEvents( |
| 57 | + """ |
| 58 | + |class `"QuotedClass"`: |
| 59 | + | var `"quotedVar"` = ??? |
| 60 | + |object `"QuotedObject"` { |
| 61 | + | def `"quotedMethod"` = ??? |
| 62 | + |}""".stripMargin, |
| 63 | + filename = filename |
| 64 | + ): |
| 65 | + Set( |
| 66 | + raw"class \"QuotedClass\"", |
| 67 | + raw"object \"QuotedObject\"", |
| 68 | + raw"method \"quotedMethod\"", |
| 69 | + raw"variable \"quotedVar\"" |
| 70 | + ).map(TraceEvent("typecheck", _)) |
| 71 | + ++ Set(TraceEvent("file", "\\\"quoted\\\".scala")) |
| 72 | + } |
| 73 | + @Test def escapeNonAscii(): Unit = { |
| 74 | + val filename = "unic😀de.scala" |
| 75 | + checkTraceEvents( |
| 76 | + """ |
| 77 | + |class ΩUnicodeClass: |
| 78 | + | var `中文Var` = ??? |
| 79 | + |object ΩUnicodeObject { |
| 80 | + | def 中文Method = ??? |
| 81 | + |}""".stripMargin, |
| 82 | + filename = filename |
| 83 | + ): |
| 84 | + Set( |
| 85 | + "class \\u03A9UnicodeClass", |
| 86 | + "object \\u03A9UnicodeObject", |
| 87 | + "method \\u4E2D\\u6587Method", |
| 88 | + "variable \\u4E2D\\u6587Var" |
| 89 | + ).map(TraceEvent("typecheck", _)) |
| 90 | + ++ Set(TraceEvent("file", "unic\\uD83D\\uDE00de.scala")) |
| 91 | + } |
| 92 | + |
| 93 | + case class TraceEvent(category: String, name: String) |
| 94 | + private def compileWithTracer( |
| 95 | + code: String, |
| 96 | + filename: String, |
| 97 | + afterPhase: String = "typer" |
| 98 | + )(checkEvents: Seq[TraceEvent] => Unit) = { |
| 99 | + val runCtx = locally: |
| 100 | + val source = SourceFile.virtual(filename, code) |
| 101 | + val c = compilerWithChecker(afterPhase) { (_, _) => () } |
| 102 | + val run = c.newRun |
| 103 | + run.compileSources(List(source)) |
| 104 | + run.runContext |
| 105 | + assert(!runCtx.reporter.hasErrors, "compilation failed") |
| 106 | + val outfile = ctx.settings.YprofileTrace.value |
| 107 | + checkEvents: |
| 108 | + scala.io.Source |
| 109 | + .fromFile(outfile) |
| 110 | + .getLines() |
| 111 | + .collect: |
| 112 | + case s"""${_}"cat":"${category}","name":${name},"ph":${_}""" => |
| 113 | + TraceEvent(category, name.stripPrefix("\"").stripSuffix("\"")) |
| 114 | + .distinct.toSeq |
| 115 | + } |
| 116 | + |
| 117 | + private def checkTraceEvents(code: String, filename: String = "test")(expected: Set[TraceEvent]): Unit = { |
| 118 | + compileWithTracer(code, filename = filename, afterPhase = "typer"){ events => |
| 119 | + val missing = expected.diff(events.toSet) |
| 120 | + def showFound = events |
| 121 | + .groupBy(_.category) |
| 122 | + .collect: |
| 123 | + case (category, events) |
| 124 | + if expected.exists(_.category == category) => |
| 125 | + s"- $category: [${events.map(_.name).mkString(", ")}]" |
| 126 | + .mkString("\n") |
| 127 | + assert( |
| 128 | + missing.isEmpty, |
| 129 | + s"""Missing ${missing.size} names [${missing.mkString(", ")}] in events, got:\n${showFound}""" |
| 130 | + ) |
| 131 | + } |
| 132 | + } |
| 133 | +} |
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