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/* ____ ____ ____ ____ ______ *\
** / __// __ \/ __// __ \/ ____/ SOcos COmpiles Scala **
** __\_ \/ /_/ / /__/ /_/ /\_ \ (c) 2003, LAMP/EPFL **
** /_____/\____/\___/\____/____/ **
\* */
// $Id$
package scalac.symtab.classfile;
import scalac.Global;
import scalac.symtab.Symbol;
import scalac.symtab.SymbolLoader;
import scalac.symtab.TermSymbol;
import scalac.symtab.ClassSymbol;
import scalac.symtab.AliasTypeSymbol;
import scalac.symtab.Scope;
import scalac.symtab.Modifiers;
import scalac.symtab.Type.*;
import scalac.util.Name;
import scalac.util.Names;
import scalac.util.Debug;
import ch.epfl.lamp.util.Position;
import ch.epfl.lamp.compiler.msil.*;
public class CLRClassParser extends SymbolLoader {
protected JavaTypeFactory make;
protected final CLRPackageParser importer;
// private static final int bindingFlags = BindingFlags.DeclaredOnly
// | BindingFlags.Instance | BindingFlags.Static
// | BindingFlags.Public | BindingFlags.NonPublic;
public CLRClassParser(Global global, CLRPackageParser importer) {
super(global);
this.importer = importer;
}
protected String doComplete(Symbol clazz) {
try { return doComplete0(clazz); }
catch (Throwable e) {
System.err.println("\nWhile processing " + Debug.show(clazz));
e.printStackTrace();
System.exit(1);
return null; // !!!
}
}
protected String doComplete0(Symbol clazz) {
clazz.owner().initialize(); //???
if (make == null)
make = new JavaTypeCreator(global.definitions);
Type type = (Type)importer.getMember(clazz);
if (type == null)
type = Type.GetType(global.primitives.getCLRClassName(clazz));
clazz.flags = translateAttributes(type);
Type[] ifaces = type.getInterfaces();
scalac.symtab.Type[] baseTypes = new scalac.symtab.Type[ifaces.length+1];
baseTypes[0] = type.BaseType == null ? global.definitions.ANYREF_TYPE()
: getCLRType(type.BaseType);
for (int i = 0; i < ifaces.length; i++)
baseTypes[i + 1] = getCLRType(ifaces[i]);
Scope members = new Scope();
Scope statics = new Scope();
scalac.symtab.Type classInfo =
scalac.symtab.Type.compoundType(baseTypes, members, clazz);
clazz.setInfo(classInfo);
Symbol staticsClass = clazz.dualClass();
assert staticsClass.isModuleClass(): Debug.show(staticsClass);
scalac.symtab.Type staticsInfo = scalac.symtab.Type.compoundType
(scalac.symtab.Type.EMPTY_ARRAY, statics, staticsClass);
staticsClass.setInfo(staticsInfo);
staticsClass.module().setInfo(make.classType(staticsClass));
scalac.symtab.Type ctype = make.classType(clazz);
// import nested types
Type[] nestedTypes = type.getNestedTypes();
for (int i = 0; i < nestedTypes.length; i++) {
Type ntype = nestedTypes[i];
if (ntype.IsNestedPrivate() || ntype.IsNestedAssembly()
|| ntype.IsNestedFamANDAssem())
continue;
int j = ntype.FullName.lastIndexOf('.');
String n = (j < 0 ? ntype.FullName : ntype.FullName.substring(j + 1))
.replace('+', '#');
Name classname = Name.fromString(n).toTypeName();
Name aliasname = Name.fromString(ntype.Name).toTypeName();
// put the class at the level of its outermost class
Symbol nclazz = clazz.owner().newLoadedClass(JAVA, classname, this, null);
importer.map(nclazz, ntype);
// create an alias in the module of the outer class
AliasTypeSymbol alias =
new AliasTypeSymbol(Position.NOPOS, aliasname, staticsClass,
translateAttributes(ntype));
//
alias.setInfo(make.classType(nclazz));
alias.allConstructors()
.setInfo(MethodType(Symbol.EMPTY_ARRAY, alias.info()));
statics.enterNoHide(alias);
}
// read field information
FieldInfo[] fields = type.getFields();
for (int i = 0; i < fields.length; i++) {
if (fields[i].IsPrivate() || fields[i].IsAssembly()
|| fields[i].IsFamilyAndAssembly())
continue;
int mods = translateAttributes(fields[i]);
Name name = Name.fromString(fields[i].Name);
scalac.symtab.Type fieldType = getCLRType(fields[i].FieldType);
if (fields[i].IsLiteral())
fieldType = make.constantType(fieldType, fields[i].getValue());
Symbol owner = fields[i].IsStatic() ? staticsClass : clazz;
Symbol field = new TermSymbol(Position.NOPOS, name, owner, mods);
field.setInfo(fieldType);
(fields[i].IsStatic() ? statics : members).enterOrOverload(field);
importer.map(field, fields[i]);
}
//PropertyInfo[] props = type.GetProperties(bindingFlags);
PropertyInfo[] props = type.getProperties();
for (int i = 0; i < props.length; i++) {
MethodInfo getter = props[i].GetGetMethod(true);
MethodInfo setter = props[i].GetSetMethod(true);
if (getter == null || getter.GetParameters().length > 0)
continue;
assert props[i].PropertyType == getter.ReturnType;
scalac.symtab.Type proptype = getCLSType(props[i].PropertyType);
if (proptype == null)
continue;
Name n = Name.fromString(props[i].Name);
scalac.symtab.Type mtype =
scalac.symtab.Type.PolyType(Symbol.EMPTY_ARRAY, proptype);
int mods = translateAttributes(getter);
Symbol owner = getter.IsStatic() ? staticsClass : clazz;
Symbol method = new TermSymbol(Position.NOPOS, n, owner, mods);
setParamOwners(mtype, method);
method.setInfo(mtype);
(getter.IsStatic() ? statics : members).enterOrOverload(method);
importer.map(method, getter);
if (setter == null)
continue;
assert getter.IsStatic() == setter.IsStatic();
assert setter.ReturnType == importer.VOID;
mtype = methodType(setter, getCLSType(importer.VOID));
if (mtype == null)
continue;
n = n.append(Names._EQ);
mods = translateAttributes(setter);
method = new TermSymbol(Position.NOPOS, n, owner, mods);
setParamOwners(mtype, method);
method.setInfo(mtype);
(setter.IsStatic() ? statics : members).enterOrOverload(method);
importer.map(method, setter);
}
//MethodInfo[] methods = type.GetMethods(bindingFlags);
MethodInfo[] methods = type.getMethods();
for (int i = 0; i < methods.length; i++) {
if ((importer.getSymbol(methods[i]) != null)
|| methods[i].IsPrivate()
|| methods[i].IsAssembly()
|| methods[i].IsFamilyAndAssembly())
continue;
scalac.symtab.Type rettype = getCLSType(methods[i].ReturnType);
if (rettype == null)
continue;
scalac.symtab.Type mtype = methodType(methods[i], rettype);
if (mtype == null)
continue;
String name = methods[i].Name;
Name n;
if (name.equals("GetHashCode")) n = Names.hashCode;
else if (name.equals("Equals")) n = Names.equals;
else if (name.equals("ToString")) n = Names.toString;
else n = Name.fromString(name);
int mods = translateAttributes(methods[i]);
Symbol owner = methods[i].IsStatic() ? staticsClass : clazz;
Symbol method = new TermSymbol(Position.NOPOS, n, owner, mods);
setParamOwners(mtype, method);
method.setInfo(mtype);
(methods[i].IsStatic() ? statics : members).enterOrOverload(method);
importer.map(method, methods[i]);
}
//ConstructorInfo[] constrs = type.GetConstructors(bindingFlags);
ConstructorInfo[] constrs = type.getConstructors();
for (int i = 0; i < constrs.length; i++) {
if (constrs[i].IsStatic() || constrs[i].IsPrivate()
|| constrs[i].IsAssembly() || constrs[i].IsFamilyAndAssembly())
continue;
scalac.symtab.Type mtype = methodType(constrs[i], ctype);
if (mtype == null)
continue;
Symbol constr = clazz.primaryConstructor();
int mods = translateAttributes(constrs[i]);
if (constr.isInitialized()) {
clazz.addConstructor(
constr = clazz.newConstructor(Position.NOPOS, mods));
} else {
constr.flags = mods;
}
setParamOwners(mtype, constr);
constr.setInfo(mtype);
// System.out.println(clazz.allConstructors() + ": "
// + clazz.allConstructors().info());
importer.map(constr, constrs[i]);
}
Symbol constr = clazz.primaryConstructor();
if (!constr.isInitialized()) {
constr.setInfo(scalac.symtab.Type.MethodType
(Symbol.EMPTY_ARRAY, ctype));
if ((clazz.flags & Modifiers.INTERFACE) == 0)
constr.flags |= Modifiers.PRIVATE;
}
return "assembly [" + type.Assembly.GetName().Name + "]" + type;
}
/** Return a method type for */
protected scalac.symtab.Type methodType(MethodBase method,
scalac.symtab.Type rettype) {
ParameterInfo[] params = method.GetParameters();
scalac.symtab.Type[] ptypes = new scalac.symtab.Type[params.length];
for (int j = 0; j < params.length; j++) {
ptypes[j] = getCLSType(params[j].ParameterType);
if (ptypes[j] == null)
return null;
}
return make.methodType(ptypes, rettype, scalac.symtab.Type.EMPTY_ARRAY);
}
protected void setParamOwners(scalac.symtab.Type type, Symbol owner) {
switch (type) {
case PolyType(Symbol[] params, scalac.symtab.Type restype):
for (int i = 0; i < params.length; i++) params[i].setOwner(owner);
setParamOwners(restype, owner);
return;
case MethodType(Symbol[] params, scalac.symtab.Type restype):
for (int i = 0; i < params.length; i++) params[i].setOwner(owner);
setParamOwners(restype, owner);
return;
}
}
protected scalac.symtab.Type getClassType(Type type) {
assert type != null;
scalac.symtab.Type res =
make.classType(Name.fromString(type.FullName.replace('+', '.')));
if (res == scalac.symtab.Type.ErrorType)
global.error("unknown class reference " + type.FullName);
return res;
}
protected scalac.symtab.Type getCLSType(Type type) {
if (type == importer.BYTE || type == importer.USHORT
|| type == importer.UINT || type == importer.ULONG
|| type.IsPointer()
|| (type.IsArray() && getCLSType(type.GetElementType()) == null))
return null;
//Symbol s = importer.getSymbol(type);
//scalac.symtab.Type t = s != null ? make.classType(s) : getCLRType(type);
return getCLRType(type);
}
protected scalac.symtab.Type getCLRType(Type type) {
if (type == importer.OBJECT)
return make.objectType();
if (type == importer.STRING)
return make.stringType();
if (type == importer.VOID)
return make.voidType();
if (type == importer.BOOLEAN)
return make.booleanType();
if (type == importer.CHAR)
return make.charType();
if (type == importer.BYTE || type == importer.UBYTE)
return make.byteType();
if (type == importer.SHORT || type == importer.USHORT)
return make.shortType();
if (type == importer.INT || type == importer.UINT)
return make.intType();
if (type == importer.LONG || type == importer.ULONG)
return make.longType();
if (type == importer.FLOAT)
return make.floatType();
if (type == importer.DOUBLE)
return make.doubleType();
if (type.IsArray())
return make.arrayType(getCLRType(type.GetElementType()));
Symbol s = importer.getSymbol(type);
return s != null ? make.classType(s) : getClassType(type);
}
protected static int translateAttributes(Type type) {
int mods = Modifiers.JAVA;
if (type.IsNotPublic() || type.IsNestedPrivate()
|| type.IsNestedAssembly() || type.IsNestedFamANDAssem())
mods |= Modifiers.PRIVATE;
else if (type.IsNestedFamily() || type.IsNestedFamORAssem())
mods |= Modifiers.PROTECTED;
if (type.IsAbstract())
mods |= Modifiers.ABSTRACT;
if (type.IsSealed())
mods |= Modifiers.FINAL;
if (type.IsInterface())
mods |= Modifiers.INTERFACE | Modifiers.TRAIT | Modifiers.ABSTRACT;
return mods;
}
protected static int translateAttributes(FieldInfo field) {
int mods = Modifiers.JAVA;
if (field.IsPrivate() || field.IsAssembly() || field.IsFamilyAndAssembly())
mods |= Modifiers.PRIVATE;
else if (field.IsFamily() || field.IsFamilyOrAssembly())
mods |= Modifiers.PROTECTED;
if (field.IsInitOnly())
mods |= Modifiers.FINAL;
else
mods |= Modifiers.MUTABLE;
return mods;
}
protected static int translateAttributes(MethodBase method) {
int mods = Modifiers.JAVA;
if (method.IsPrivate() || method.IsAssembly() || method.IsFamilyAndAssembly())
mods |= Modifiers.PRIVATE;
else if (method.IsFamily() || method.IsFamilyOrAssembly())
mods |= Modifiers.PROTECTED;
if (method.IsAbstract())
mods |= Modifiers.DEFERRED;
return mods;
}
}
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