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Diffstat (limited to 'sources/scalac/symtab/classfile/AttributeParser.java')
| -rw-r--r-- | sources/scalac/symtab/classfile/AttributeParser.java | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/sources/scalac/symtab/classfile/AttributeParser.java b/sources/scalac/symtab/classfile/AttributeParser.java deleted file mode 100644 index 7f04a3d147..0000000000 --- a/sources/scalac/symtab/classfile/AttributeParser.java +++ /dev/null @@ -1,216 +0,0 @@ -/* ____ ____ ____ ____ ______ *\ -** / __// __ \/ __// __ \/ ____/ SOcos COmpiles Scala ** -** __\_ \/ /_/ / /__/ /_/ /\_ \ (c) 2002, LAMP/EPFL ** -** /_____/\____/\___/\____/____/ ** -** ** -** $Id$ -\* */ - -package scalac.symtab.classfile; - -import scala.tools.util.Position; -import scala.tools.util.AbstractFileReader; -import scalac.*; -import scalac.atree.AConstant; -import scalac.symtab.*; -import scalac.util.*; -import java.util.*; - -public class AttributeParser implements ClassfileConstants { - - /** the classfile input buffer - */ - protected AbstractFileReader in; - - /** the constant pool - */ - protected ConstantPool pool; - - protected ClassfileParser parser; - - /** constructor - */ - public AttributeParser(AbstractFileReader in, - ConstantPool pool, - ClassfileParser parser) - { - this.in = in; - this.pool = pool; - this.parser = parser; - } - - /** convert an attribute name into an attribute id - */ - public int nameToId(Name name) { - if (name == SOURCEFILE_N) - return SOURCEFILE_ATTR; - if (name == SYNTHETIC_N) - return SYNTHETIC_ATTR; - if (name == DEPRECATED_N) - return DEPRECATED_ATTR; - if (name == CODE_N) - return CODE_ATTR; - if (name == EXCEPTIONS_N) - return EXCEPTIONS_ATTR; - if (name == CONSTANT_VALUE_N) - return CONSTANT_VALUE_ATTR; - if (name == LINE_NUM_TABLE_N) - return LINE_NUM_TABLE_ATTR; - if (name == LOCAL_VAR_TABLE_N) - return LOCAL_VAR_TABLE_ATTR; - if (name == INNERCLASSES_N) - return INNERCLASSES_ATTR; - if (name == META_N) - return META_ATTR; - if (name == SCALA_N) - return SCALA_ATTR; - if (name == JACO_N) - return JACO_ATTR; - if (name == BRIDGE_N) - return BRIDGE_ATTR; - if (name == SIG_N) - return SIG_ATTR; - return BAD_ATTR; - } - - /** skip all attributes. - */ - public void skipAttributes() { - char nattr = in.nextChar(); - for (int i = 0; i < nattr; i++) { - in.skip(2); - in.skip(in.nextInt()); - } - } - - /** read all attributes associated with symbol 'sym' which are - * contained in 'attrs'. - */ - public Symbol readAttributes(Symbol def, Type type, int attrs) { - char nattr = in.nextChar(); - for (int i = 0; i < nattr; i++) { - Name attrName = pool.getName(in.nextChar()); - int attr = nameToId(attrName); - int attrLen = in.nextInt(); - if ((attrs & attr) == 0) { - //System.out.println("# skipping " + attrName + " of " + def); - in.skip(attrLen); - } else { - //System.out.println("# reading " + attrName + " of " + def); - readAttribute(def, type, attr, attrLen); - } - } - return def; - } - - /** read a single attribute 'attr' for symbol 'sym' with type 'type'. - */ - public void readAttribute(Symbol sym, Type type, int attr, int attrLen) { - switch (attr) { - // class attributes - case SCALA_ATTR: - try { - UnPickle.parse(parser.global, in.nextBytes(attrLen), sym); - return; - } catch (UnPickle.BadSignature exception) { - throw new RuntimeException(exception); - } - case INNERCLASSES_ATTR: - int n = in.nextChar(); - //System.out.println(sym + " has " + n + " innerclass entries"); - for (int i = 0; i < n; i++) { - int inner = in.nextChar(); - if (inner == 0) { in.skip(6); continue; } - int outer = in.nextChar(); - if (outer == 0) { in.skip(4); continue; } - int name = in.nextChar(); - if (name == 0) { in.skip(2); continue; } - int flags = in.nextChar(); - if ((flags & JAVA_ACC_STATIC) == 0) continue; - if ((flags & (JAVA_ACC_PUBLIC | JAVA_ACC_PROTECTED)) == 0) - continue; - if (pool.getClass(outer) != sym) continue; - Symbol alias = sym.linkedModule().moduleClass() - .newTypeAlias(Position.NOPOS, 0, - pool.getName(name).toTypeName(), - parser.make.classType(pool.getClass(inner))); - parser.statics.enterNoHide(alias); - } - //in.skip(attrLen); - return; - // method attributes - case CODE_ATTR: - in.skip(attrLen); - return; - case EXCEPTIONS_ATTR: - //int nexceptions = in.nextChar(); - //Type[] thrown = new Type[nexceptions]; - //for (int j = 0; j < nexceptions; j++) - // thrown[j] = make.classType(reader.readClassName(in.nextChar())); - //((MethodType)def.type).thrown = thrown; - in.skip(attrLen); - return; - case LINE_NUM_TABLE_ATTR: - in.skip(attrLen); - return; - case LOCAL_VAR_TABLE_ATTR: - in.skip(attrLen); - return; - // general attributes - case SYNTHETIC_ATTR: - sym.flags |= Modifiers.SYNTHETIC; - return; - case BRIDGE_ATTR: - sym.flags |= Modifiers.BRIDGE; - return; - case DEPRECATED_ATTR: - sym.flags |= Modifiers.DEPRECATED; - return; - case CONSTANT_VALUE_ATTR: - AConstant constant = pool.getConstantValue(in.nextChar()); - switch (constant) { - case INT(int value): - Definitions definitions = parser.global.definitions; - Symbol base = sym.getType().symbol(); - if (base == definitions.INT_CLASS) break; - if (base == definitions.CHAR_CLASS) - constant = AConstant.CHAR((char)value); - else if (base == definitions.SHORT_CLASS) - constant = AConstant.SHORT((short)value); - else if (base == definitions.BYTE_CLASS) - constant = AConstant.BYTE((byte)value); - else - constant = AConstant.BOOLEAN(value != 0); - } - sym.setInfo(parser.make.constantType(constant)); - return; - case META_ATTR: - //System.out.println("parsing meta data for " + sym); - String meta = pool.getString(in.nextChar()).trim(); - MetaParser mp = new MetaParser - (meta, tvars, sym, type, parser.c, parser.ctype, parser.make); - sym.setInfo(mp.parse()); - return; - case JACO_ATTR: - // this attribute is present in all PiCo generated classfiles - int mods = in.nextChar(); - mods |= (in.nextChar() << 16); - boolean algebraicClass = (mods & 0x00100000) != 0; - boolean caseClass = (mods & 0x00200000) != 0; - if (caseClass) - sym.flags |= Modifiers.CASE | Modifiers.JAVA; - in.skip(attrLen - 4); - return; - case SOURCEFILE_ATTR: - String name = pool.getString(in.nextChar()); - parser.c.getOrigin().setSourceFileAttribute(name); - parser.m.moduleClass().getOrigin().setSourceFileAttribute(name); - return; - default: - in.skip(attrLen); - return; - } - } - - Scope tvars = new Scope(); -} |