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Merge pull request #1376 from xeno-by/topic/scalalib
More assorted fixes
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169 changes: 169 additions & 0 deletions
169
semanticdb/scalalib/gen/src/main/scala/scala/meta/internal/scalalib/Generator.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| package scala.meta.internal.scalalib | ||
|
|
||
| import java.nio.file._ | ||
| import scala.meta.internal.metacp._ | ||
| import scala.meta.internal.{semanticdb3 => s} | ||
| import scala.meta.internal.semanticdb3.Accessibility.{Tag => a} | ||
| import scala.meta.internal.semanticdb3.SymbolInformation.{Kind => k} | ||
| import scala.meta.internal.semanticdb3.SymbolInformation.{Property => p} | ||
| import scala.meta.internal.semanticdb3.Type.{Tag => t} | ||
|
|
||
| object Generator { | ||
| def main(args: Array[String]): Unit = { | ||
| val Array(outDir) = args | ||
| val settings = Settings(d = outDir) | ||
| val index = new Index | ||
| val synthetics = List(any, anyVal, anyRef, nothing) | ||
| synthetics.foreach { infos => | ||
| index.append(infos) | ||
| infos.save(settings) | ||
| } | ||
| index.save(settings) | ||
| } | ||
|
|
||
| def any: ToplevelInfos = { | ||
| val symbols = List( | ||
| builtinMethod("Any", List(p.ABSTRACT), "equals", Nil, List("that" -> "_root_.scala.Any#"), "_root_.scala.Boolean#"), | ||
| builtinMethod("Any", List(p.FINAL), "==", Nil, List("that" -> "_root_.scala.Any#"), "_root_.scala.Boolean#"), | ||
| builtinMethod("Any", List(p.FINAL), "!=", Nil, List("that" -> "_root_.scala.Any#"), "_root_.scala.Boolean#"), | ||
| builtinMethod("Any", List(p.ABSTRACT), "hashCode", Nil, Nil, "_root_.scala.Int#"), | ||
| builtinMethod("Any", List(p.FINAL), "##", Nil, Nil, "_root_.scala.Int#"), | ||
| builtinMethod("Any", List(p.ABSTRACT), "toString", Nil, Nil, "_root_.java.lang.String#"), | ||
| // TODO: Return type of getClass can't be expressed in the SemanticDB type system. | ||
| // The method is special-cased in both the Java and Scala compilers, so we'll slack a little bit too for the time being. | ||
| builtinMethod("Any", List(p.FINAL), "getClass", Nil, Nil, "_root_.java.lang.Class#"), | ||
| builtinMethod("Any", List(p.FINAL), "isInstanceOf", List("A"), Nil, "_root_.scala.Boolean#"), | ||
| builtinMethod("Any", List(p.FINAL), "asInstanceOf", List("A"), Nil, "_root_.scala.Any.asInstanceOf(A).[A]")) | ||
| builtinClass(List(p.ABSTRACT), "Any", Nil, symbols.flatten) | ||
| } | ||
|
|
||
| def anyVal: ToplevelInfos = { | ||
| builtinClass(List(p.ABSTRACT), "AnyVal", List("_root_.scala.Any#"), Nil) | ||
| } | ||
|
|
||
| def anyRef: ToplevelInfos = { | ||
| // TODO: We're not including methods from java.lang.Object here. | ||
| // The relationship between AnyRef and Object needs more thinking. | ||
| val symbols = List( | ||
| builtinMethod("AnyRef", List(p.FINAL), "eq", Nil, List("that" -> "_root_.scala.AnyRef#"), "_root_.scala.Boolean#"), | ||
| builtinMethod("AnyRef", List(p.FINAL), "ne", Nil, List("that" -> "_root_.scala.AnyRef#"), "_root_.scala.Boolean#"), | ||
| builtinMethod("AnyRef", List(p.FINAL), "synchronized", List("T"), List("body" -> "_root_.scala.AnyRef.synchronized(T).[T]"), "_root_.scala.AnyRef.synchronized(T).[T]")) | ||
| builtinClass(Nil, "AnyRef", List("_root_.scala.Any#"), symbols.flatten) | ||
| } | ||
|
|
||
| def nothing: ToplevelInfos = { | ||
| builtinClass(List(p.ABSTRACT, p.FINAL), "Nothing", List("_root_.scala.Any#"), Nil) | ||
| } | ||
|
|
||
| private def builtinClass( | ||
| props: List[s.SymbolInformation.Property], | ||
| name: String, | ||
| bases: List[String], | ||
| symbols: List[s.SymbolInformation]): ToplevelInfos = { | ||
| val parents = bases.map { base => | ||
| s.Type(tag = t.TYPE_REF, typeRef = Some(s.TypeRef(None, base, Nil))) | ||
| } | ||
| val symbol = "_root_.scala." + name + "#" | ||
| val builtinTpe = s.Type(tag = t.TYPE_REF, typeRef = Some(s.TypeRef(None, symbol, Nil))) | ||
| val ctorSig = s.MethodType(Nil, List(s.MethodType.ParameterList(Nil)), Some(builtinTpe)) | ||
| val ctor = s.SymbolInformation( | ||
| symbol = symbol + "`<init>`().", | ||
| language = Some(builtinLanguage), | ||
| kind = k.PRIMARY_CONSTRUCTOR, | ||
| name = "<init>", | ||
| tpe = Some(s.Type(tag = t.METHOD_TYPE, methodType = Some(ctorSig))), | ||
| accessibility = Some(s.Accessibility(a.PUBLIC)), | ||
| owner = symbol | ||
| ) | ||
| val builtinSig = { | ||
| val decls = symbols.filter(_.kind == k.DEF) | ||
| val tpe = s.ClassInfoType(Nil, parents, ctor.symbol +: decls.map(_.symbol)) | ||
| s.Type(tag = t.CLASS_INFO_TYPE, classInfoType = Some(tpe)) | ||
| } | ||
| val builtin = s.SymbolInformation( | ||
| symbol = symbol, | ||
| language = Some(builtinLanguage), | ||
| kind = k.CLASS, | ||
| properties = props.foldLeft(0)((acc, prop) => acc | prop.value), | ||
| name = name, | ||
| tpe = Some(builtinSig), | ||
| accessibility = Some(s.Accessibility(a.PUBLIC)), | ||
| owner = "_root_.scala." | ||
| ) | ||
| val syntheticBase = Paths.get(".") | ||
| val syntheticPath = syntheticBase.resolve("scala/" + name + ".class") | ||
| val syntheticClassfile = ToplevelClassfile(syntheticBase, syntheticPath, null) | ||
| ToplevelInfos(syntheticClassfile, List(builtin), ctor +: symbols) | ||
| } | ||
|
|
||
| def builtinMethod( | ||
| className: String, | ||
| props: List[s.SymbolInformation.Property], | ||
| methodName: String, | ||
| tparamDsls: List[String], | ||
| paramDsls: List[(String, String)], | ||
| retTpeSymbol: String): List[s.SymbolInformation] = { | ||
| val classSymbol = "_root_.scala." + className + "#" | ||
| val encodedMethodName = { | ||
| if (Character.isJavaIdentifierStart(methodName.head)) methodName | ||
| else "`" + methodName + "`" | ||
| } | ||
| val disambiguator = { | ||
| val paramTypeDescriptors = paramDsls.map(_._2).map { symbol => | ||
| // TODO: It would be nice to have a symbol parser in semanticdb3. | ||
| val _ :+ last = symbol.split("[\\.|#]").toList | ||
| val last1 = last.stripPrefix("(").stripPrefix("[") | ||
| val last2 = last1.stripSuffix(")").stripSuffix("]").stripSuffix("#") | ||
| last2.stripPrefix("`").stripSuffix("`") | ||
| } | ||
| paramTypeDescriptors.mkString(",") | ||
| } | ||
| val methodSymbol = classSymbol + encodedMethodName + "(" + disambiguator + ")." | ||
| val tparams = tparamDsls.map { tparamName => | ||
| val tparamSymbol = methodSymbol + "[" + tparamName + "]" | ||
| val tparamSig = s.Type(tag = t.TYPE_TYPE, typeType = Some(s.TypeType())) | ||
| s.SymbolInformation( | ||
| symbol = tparamSymbol, | ||
| language = Some(builtinLanguage), | ||
| kind = k.TYPE_PARAMETER, | ||
| properties = 0, | ||
| name = tparamName, | ||
| tpe = Some(tparamSig), | ||
| accessibility = None, | ||
| owner = methodSymbol) | ||
| } | ||
| val params = paramDsls.map { | ||
| case (paramName, paramTpeSymbol) => | ||
| val paramSymbol = methodSymbol + "(" + paramName + ")" | ||
| val paramSig = s.Type(tag = t.TYPE_REF, typeRef = Some(s.TypeRef(None, paramTpeSymbol, Nil))) | ||
| s.SymbolInformation( | ||
| symbol = paramSymbol, | ||
| language = Some(builtinLanguage), | ||
| kind = k.PARAMETER, | ||
| properties = 0, | ||
| name = paramName, | ||
| tpe = Some(paramSig), | ||
| owner = methodSymbol) | ||
| } | ||
| val methodSig = { | ||
| val paramSymbols = params.map(_.symbol) | ||
| val returnType = s.Type(tag = t.TYPE_REF, typeRef = Some(s.TypeRef(None, retTpeSymbol, Nil))) | ||
| val methodType = s.MethodType(Nil, List(s.MethodType.ParameterList(paramSymbols)), Some(returnType)) | ||
| s.Type(tag = t.METHOD_TYPE, methodType = Some(methodType)) | ||
| } | ||
| val method = s.SymbolInformation( | ||
| symbol = methodSymbol, | ||
| language = Some(builtinLanguage), | ||
| kind = k.DEF, | ||
| properties = props.foldLeft(0)((acc, prop) => acc | prop.value), | ||
| name = methodName, | ||
| tpe = Some(methodSig), | ||
| accessibility = Some(s.Accessibility(a.PUBLIC)), | ||
| owner = classSymbol) | ||
| List(method) ++ tparams ++ params | ||
| } | ||
|
|
||
| def builtinLanguage: s.Language = { | ||
| s.Language("Scala") | ||
| } | ||
| } |
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