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author | mihaylov <mihaylov@epfl.ch> | 2005-06-07 16:09:06 +0000 |
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committer | mihaylov <mihaylov@epfl.ch> | 2005-06-07 16:09:06 +0000 |
commit | 3e245187703825350957a1bb02f74111320a0cdc (patch) | |
tree | ceef3c006391d45d250b5a44be54437b0d01dad2 /sources/scalac | |
parent | ce80365a9dbce1419c0ad631d4d8b4279ea630a8 (diff) | |
download | scala-3e245187703825350957a1bb02f74111320a0cdc.tar.gz scala-3e245187703825350957a1bb02f74111320a0cdc.tar.bz2 scala-3e245187703825350957a1bb02f74111320a0cdc.zip |
- Implemented support for the scala.SerialVersi...
- Implemented support for the scala.SerialVersionUID attribute - Removed
code related to the hack previously used to set the serialVersionUID
field
Diffstat (limited to 'sources/scalac')
-rw-r--r-- | sources/scalac/backend/jvm/GenJVM.java | 78 |
1 files changed, 20 insertions, 58 deletions
diff --git a/sources/scalac/backend/jvm/GenJVM.java b/sources/scalac/backend/jvm/GenJVM.java index 5753ca9c4d..05cd5373c8 100644 --- a/sources/scalac/backend/jvm/GenJVM.java +++ b/sources/scalac/backend/jvm/GenJVM.java @@ -167,13 +167,14 @@ public class GenJVM { addValueClassMembers(ctx1, classDef); gen(ctx1, impl); - HashMap staticMembers = collectStaticClassMembers(ctx1, sym); - if (ctx1.isModuleClass || staticMembers.size() != 0) { + AConstant[] aargs = global.getAttrArguments + (sym, defs.SCALA_SERIAL_VERSION_UID_CONSTR); + if (ctx1.isModuleClass || aargs != null) { JMethod clinit = getClassConstructorMethod(ctx1); if (clinit.getCode().getSize() == 0) { Context ctx2 = ctx1.withMethod(clinit, Collections.EMPTY_MAP, false); - completeClassConstructor(ctx2, staticMembers); + completeClassConstructor(ctx2, sym); ctx2.code.emitRETURN(); genLocalVariableTable(ctx2); } @@ -209,11 +210,8 @@ public class GenJVM { if (! Modifiers.Helper.isAbstract(sym.flags)) { JType retType = ctx1.method.getReturnType(); genLoad(ctx1, rhs, retType); - if (sym.name == Names.CLASS_CONSTRUCTOR) { - HashMap staticMembers = - collectStaticClassMembers(ctx, sym.owner()); - completeClassConstructor(ctx1, staticMembers); - } + if (sym.name == Names.CLASS_CONSTRUCTOR) + completeClassConstructor(ctx1, sym.owner()); ctx1.code.emitRETURN(retType); ctx1.method.freeze(); } @@ -1624,9 +1622,8 @@ public class GenJVM { protected Context enterClass(Context ctx, Symbol cSym) { String javaName = javaName(cSym); - AttributeInfo attrs = global.getAttributes(cSym); - boolean serializable = attrs != null - && attrs.getAttrArguments(defs.SCALA_SERIALIZABLE_CONSTR) != null; + boolean serializable = + global.getAttrArguments(cSym, defs.SCALA_SERIALIZABLE_CONSTR) != null; scalac.symtab.Type[] baseTps = cSym.info().parents(); assert baseTps.length > 0 : Debug.show(cSym); @@ -1787,10 +1784,20 @@ public class GenJVM { } } - private void completeClassConstructor(Context ctx, HashMap staticMembers) { + protected void completeClassConstructor(Context ctx, Symbol cSym) { if (ctx.isModuleClass) addModuleInstanceField(ctx); - addStaticClassMembers(ctx, staticMembers); + AConstant[] aargs = + global.getAttrArguments(cSym, defs.SCALA_SERIAL_VERSION_UID_CONSTR); + if (aargs == null) + return; + assert aargs.length == 1 : "Wrong attribute arguments: "; + String fieldName = "serialVersionUID"; + JField field = ctx.clazz.addNewField + (JAccessFlags.ACC_STATIC | JAccessFlags.ACC_PUBLIC, fieldName, + JType.LONG); + genLoadLiteral(ctx, aargs[0], JType.LONG); + ctx.code.emitPUTSTATIC(ctx.clazz.getName(), fieldName, JType.LONG); } /** @@ -1815,51 +1822,6 @@ public class GenJVM { Strings.EMPTY_ARRAY); } - private HashMap collectStaticClassMembers(Context ctx, Symbol cSym) { - HashMap/*<Symbol, AConstant>*/ staticMembers = new HashMap(); - Symbol iSym = ctx.isModuleClass - ? cSym : addInterfacesPhase.getInterfaceSymbol(cSym); - if (iSym != null) { - // Compute the list of static members to add. - Phase bkpCurrent = global.currentPhase; - global.currentPhase = refCheckPhase; - Scope.SymbolIterator memberIt = - iSym.members().iterator(); - while (memberIt.hasNext()) { - Symbol member = memberIt.next(); - if (member.isTerm() && !member.isMethod() && member.isPrivate()) - switch (member.info()) { - case ConstantType(_, AConstant value): - staticMembers.put(member, value); - } - } - global.currentPhase = bkpCurrent; - } - return staticMembers; - } - - // The following function is a single big hack. - protected void addStaticClassMembers(Context ctx, HashMap staticMembers) { - // Add them and initialize them. - Iterator smIt = staticMembers.keySet().iterator(); - while (smIt.hasNext()) { - Symbol sm = (Symbol)smIt.next(); - String smName = sm.name.toString(); - JType tp = typeStoJ(sm.info()); - JField field = - ctx.clazz.addNewField((javaModifiers(sm) - | JAccessFlags.ACC_STATIC - | JAccessFlags.ACC_PUBLIC) - & ~JAccessFlags.ACC_PRIVATE, - smName.substring(0, - smName.length()-1), - tp); - genLoadLiteral(ctx, (AConstant)staticMembers.get(sm), tp); - ctx.code.emitPUTSTATIC(ctx.clazz.getName(), - field.getName(), - tp); - } - } /** * Return true iff the given symbol is a static (in the Java |