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-rw-r--r--depends/pack200/src/bands.h489
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-/*
- * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-// -*- C++ -*-
-struct entry;
-struct cpindex;
-struct unpacker;
-
-struct band
-{
- int bn; // band_number of this band
- coding *defc; // default coding method
- cpindex *ix; // CP entry mapping, if CPRefBand
- byte ixTag; // 0 or 1; nullptr is coded as (nullOK?0:-1)
- byte nullOK; // 0 or 1; nullptr is coded as (nullOK?0:-1)
- int length; // expected # values
- unpacker *u; // back pointer
-
- value_stream vs[2]; // source of values
- coding_method cm; // method used for initial state of vs[0]
- byte *rplimit; // end of band (encoded, transmitted)
-
- int total_memo; // cached value of getIntTotal, or -1
- int *hist0; // approximate. histogram
- enum
- {
- HIST0_MIN = 0,
- HIST0_MAX = 255
- }; // catches the usual cases
-
- // properties for attribute layout elements:
- byte le_kind; // EK_XXX
- byte le_bci; // 0,EK_BCI,EK_BCD,EK_BCO
- byte le_back; // ==EF_BACK
- byte le_len; // 0,1,2,4 (size in classfile), or call addr
- band **le_body; // body of repl, union, call (nullptr-terminated)
-// Note: EK_CASE elements use hist0 to record union tags.
-#define le_casetags hist0
-
- band &nextBand()
- {
- return this[1];
- }
- band &prevBand()
- {
- return this[-1];
- }
-
- void init(unpacker *u_, int bn_, coding *defc_)
- {
- u = u_;
- cm.u = u_;
- bn = bn_;
- defc = defc_;
- }
- void init(unpacker *u_, int bn_, int defcSpec)
- {
- init(u_, bn_, coding::findBySpec(defcSpec));
- }
- void initRef(int ixTag_ = 0, bool nullOK_ = false)
- {
- ixTag = ixTag_;
- nullOK = nullOK_;
- setIndexByTag(ixTag);
- }
-
- void expectMoreLength(int l)
- {
- assert(length >= 0); // able to accept a length
- assert((int)l >= 0); // no overflow
- assert(rplimit == nullptr); // readData not yet called
- length += l;
- assert(length >= l); // no overflow
- }
-
- void setIndex(cpindex *ix_);
- void setIndexByTag(byte tag);
-
- // Parse the band and its meta-coding header.
- void readData(int expectedLength = 0);
-
- // Reset the band for another pass (Cf. Java Band.resetForSecondPass.)
- void rewind()
- {
- cm.reset(&vs[0]);
- }
-
- byte *&curRP()
- {
- return vs[0].rp;
- }
- byte *minRP()
- {
- return cm.vs0.rp;
- }
- byte *maxRP()
- {
- return rplimit;
- }
- size_t size()
- {
- return maxRP() - minRP();
- }
-
- int getByte()
- {
- assert(ix == nullptr);
- return vs[0].getByte();
- }
- int getInt()
- {
- assert(ix == nullptr);
- return vs[0].getInt();
- }
- entry *getRefN()
- {
- assert(ix != nullptr);
- return getRefCommon(ix, true);
- }
- entry *getRef()
- {
- assert(ix != nullptr);
- return getRefCommon(ix, false);
- }
- entry *getRefUsing(cpindex *ix2)
- {
- assert(ix == nullptr);
- return getRefCommon(ix2, true);
- }
- entry *getRefCommon(cpindex *ix, bool nullOK);
- int64_t getLong(band &lo_band, bool have_hi);
-
- static int64_t makeLong(uint32_t hi, uint32_t lo)
- {
- return ((uint64_t)hi << 32) + (((uint64_t)lo << 32) >> 32);
- }
-
- int getIntTotal();
- int getIntCount(int tag);
-
- static band *makeBands(unpacker *u);
- static void initIndexes(unpacker *u);
-};
-
-extern band all_bands[];
-
-#define BAND_LOCAL /* \
- band* band_temp = all_bands; \
- band* all_bands = band_temp */
-
-// Band schema:
-enum band_number
-{
- // e_archive_magic,
- // e_archive_header,
- // e_band_headers,
-
- // constant pool contents
- e_cp_Utf8_prefix,
- e_cp_Utf8_suffix,
- e_cp_Utf8_chars,
- e_cp_Utf8_big_suffix,
- e_cp_Utf8_big_chars,
- e_cp_Int,
- e_cp_Float,
- e_cp_Long_hi,
- e_cp_Long_lo,
- e_cp_Double_hi,
- e_cp_Double_lo,
- e_cp_String,
- e_cp_Class,
- e_cp_Signature_form,
- e_cp_Signature_classes,
- e_cp_Descr_name,
- e_cp_Descr_type,
- e_cp_Field_class,
- e_cp_Field_desc,
- e_cp_Method_class,
- e_cp_Method_desc,
- e_cp_Imethod_class,
- e_cp_Imethod_desc,
-
- // bands which define transmission of attributes
- e_attr_definition_headers,
- e_attr_definition_name,
- e_attr_definition_layout,
-
- // band for hardwired InnerClasses attribute (shared across the package)
- e_ic_this_class,
- e_ic_flags,
- // These bands contain data only where flags sets ACC_IC_LONG_FORM:
- e_ic_outer_class,
- e_ic_name,
-
- // bands for carrying class schema information:
- e_class_this,
- e_class_super,
- e_class_interface_count,
- e_class_interface,
-
- // bands for class members
- e_class_field_count,
- e_class_method_count,
- e_field_descr,
- e_field_flags_hi,
- e_field_flags_lo,
- e_field_attr_count,
- e_field_attr_indexes,
- e_field_attr_calls,
- e_field_ConstantValue_KQ,
- e_field_Signature_RS,
- e_field_metadata_bands,
- e_field_attr_bands,
- e_method_descr,
- e_method_flags_hi,
- e_method_flags_lo,
- e_method_attr_count,
- e_method_attr_indexes,
- e_method_attr_calls,
- e_method_Exceptions_N,
- e_method_Exceptions_RC,
- e_method_Signature_RS,
- e_method_metadata_bands,
- e_method_attr_bands,
- e_class_flags_hi,
- e_class_flags_lo,
- e_class_attr_count,
- e_class_attr_indexes,
- e_class_attr_calls,
- e_class_SourceFile_RUN,
- e_class_EnclosingMethod_RC,
- e_class_EnclosingMethod_RDN,
- e_class_Signature_RS,
- e_class_metadata_bands,
- e_class_InnerClasses_N,
- e_class_InnerClasses_RC,
- e_class_InnerClasses_F,
- e_class_InnerClasses_outer_RCN,
- e_class_InnerClasses_name_RUN,
- e_class_ClassFile_version_minor_H,
- e_class_ClassFile_version_major_H,
- e_class_attr_bands,
- e_code_headers,
- e_code_max_stack,
- e_code_max_na_locals,
- e_code_handler_count,
- e_code_handler_start_P,
- e_code_handler_end_PO,
- e_code_handler_catch_PO,
- e_code_handler_class_RCN,
-
- // code attributes
- e_code_flags_hi,
- e_code_flags_lo,
- e_code_attr_count,
- e_code_attr_indexes,
- e_code_attr_calls,
- e_code_StackMapTable_N,
- e_code_StackMapTable_frame_T,
- e_code_StackMapTable_local_N,
- e_code_StackMapTable_stack_N,
- e_code_StackMapTable_offset,
- e_code_StackMapTable_T,
- e_code_StackMapTable_RC,
- e_code_StackMapTable_P,
- e_code_LineNumberTable_N,
- e_code_LineNumberTable_bci_P,
- e_code_LineNumberTable_line,
- e_code_LocalVariableTable_N,
- e_code_LocalVariableTable_bci_P,
- e_code_LocalVariableTable_span_O,
- e_code_LocalVariableTable_name_RU,
- e_code_LocalVariableTable_type_RS,
- e_code_LocalVariableTable_slot,
- e_code_LocalVariableTypeTable_N,
- e_code_LocalVariableTypeTable_bci_P,
- e_code_LocalVariableTypeTable_span_O,
- e_code_LocalVariableTypeTable_name_RU,
- e_code_LocalVariableTypeTable_type_RS,
- e_code_LocalVariableTypeTable_slot,
- e_code_attr_bands,
-
- // bands for bytecodes
- e_bc_codes,
- // remaining bands provide typed opcode fields required by the bc_codes
- e_bc_case_count,
- e_bc_case_value,
- e_bc_byte,
- e_bc_short,
- e_bc_local,
- e_bc_label,
-
- // ldc* operands:
- e_bc_intref,
- e_bc_floatref,
- e_bc_longref,
- e_bc_doubleref,
- e_bc_stringref,
- e_bc_classref,
- e_bc_fieldref,
- e_bc_methodref,
- e_bc_imethodref,
-
- // _self_linker_op family
- e_bc_thisfield,
- e_bc_superfield,
- e_bc_thismethod,
- e_bc_supermethod,
-
- // bc_invokeinit family:
- e_bc_initref,
-
- // bytecode escape sequences
- e_bc_escref,
- e_bc_escrefsize,
- e_bc_escsize,
- e_bc_escbyte,
-
- // file attributes and contents
- e_file_name,
- e_file_size_hi,
- e_file_size_lo,
- e_file_modtime,
- e_file_options,
- // e_file_bits, // handled specially as an appendix
- BAND_LIMIT
-};
-
-// Symbolic names for bands, as if in a giant global struct:
-//#define archive_magic all_bands[e_archive_magic]
-//#define archive_header all_bands[e_archive_header]
-//#define band_headers all_bands[e_band_headers]
-#define cp_Utf8_prefix all_bands[e_cp_Utf8_prefix]
-#define cp_Utf8_suffix all_bands[e_cp_Utf8_suffix]
-#define cp_Utf8_chars all_bands[e_cp_Utf8_chars]
-#define cp_Utf8_big_suffix all_bands[e_cp_Utf8_big_suffix]
-#define cp_Utf8_big_chars all_bands[e_cp_Utf8_big_chars]
-#define cp_Int all_bands[e_cp_Int]
-#define cp_Float all_bands[e_cp_Float]
-#define cp_Long_hi all_bands[e_cp_Long_hi]
-#define cp_Long_lo all_bands[e_cp_Long_lo]
-#define cp_Double_hi all_bands[e_cp_Double_hi]
-#define cp_Double_lo all_bands[e_cp_Double_lo]
-#define cp_String all_bands[e_cp_String]
-#define cp_Class all_bands[e_cp_Class]
-#define cp_Signature_form all_bands[e_cp_Signature_form]
-#define cp_Signature_classes all_bands[e_cp_Signature_classes]
-#define cp_Descr_name all_bands[e_cp_Descr_name]
-#define cp_Descr_type all_bands[e_cp_Descr_type]
-#define cp_Field_class all_bands[e_cp_Field_class]
-#define cp_Field_desc all_bands[e_cp_Field_desc]
-#define cp_Method_class all_bands[e_cp_Method_class]
-#define cp_Method_desc all_bands[e_cp_Method_desc]
-#define cp_Imethod_class all_bands[e_cp_Imethod_class]
-#define cp_Imethod_desc all_bands[e_cp_Imethod_desc]
-#define attr_definition_headers all_bands[e_attr_definition_headers]
-#define attr_definition_name all_bands[e_attr_definition_name]
-#define attr_definition_layout all_bands[e_attr_definition_layout]
-#define ic_this_class all_bands[e_ic_this_class]
-#define ic_flags all_bands[e_ic_flags]
-#define ic_outer_class all_bands[e_ic_outer_class]
-#define ic_name all_bands[e_ic_name]
-#define class_this all_bands[e_class_this]
-#define class_super all_bands[e_class_super]
-#define class_interface_count all_bands[e_class_interface_count]
-#define class_interface all_bands[e_class_interface]
-#define class_field_count all_bands[e_class_field_count]
-#define class_method_count all_bands[e_class_method_count]
-#define field_descr all_bands[e_field_descr]
-#define field_flags_hi all_bands[e_field_flags_hi]
-#define field_flags_lo all_bands[e_field_flags_lo]
-#define field_attr_count all_bands[e_field_attr_count]
-#define field_attr_indexes all_bands[e_field_attr_indexes]
-#define field_ConstantValue_KQ all_bands[e_field_ConstantValue_KQ]
-#define field_Signature_RS all_bands[e_field_Signature_RS]
-#define field_attr_bands all_bands[e_field_attr_bands]
-#define method_descr all_bands[e_method_descr]
-#define method_flags_hi all_bands[e_method_flags_hi]
-#define method_flags_lo all_bands[e_method_flags_lo]
-#define method_attr_count all_bands[e_method_attr_count]
-#define method_attr_indexes all_bands[e_method_attr_indexes]
-#define method_Exceptions_N all_bands[e_method_Exceptions_N]
-#define method_Exceptions_RC all_bands[e_method_Exceptions_RC]
-#define method_Signature_RS all_bands[e_method_Signature_RS]
-#define method_attr_bands all_bands[e_method_attr_bands]
-#define class_flags_hi all_bands[e_class_flags_hi]
-#define class_flags_lo all_bands[e_class_flags_lo]
-#define class_attr_count all_bands[e_class_attr_count]
-#define class_attr_indexes all_bands[e_class_attr_indexes]
-#define class_SourceFile_RUN all_bands[e_class_SourceFile_RUN]
-#define class_EnclosingMethod_RC all_bands[e_class_EnclosingMethod_RC]
-#define class_EnclosingMethod_RDN all_bands[e_class_EnclosingMethod_RDN]
-#define class_Signature_RS all_bands[e_class_Signature_RS]
-#define class_InnerClasses_N all_bands[e_class_InnerClasses_N]
-#define class_InnerClasses_RC all_bands[e_class_InnerClasses_RC]
-#define class_InnerClasses_F all_bands[e_class_InnerClasses_F]
-#define class_InnerClasses_outer_RCN all_bands[e_class_InnerClasses_outer_RCN]
-#define class_InnerClasses_name_RUN all_bands[e_class_InnerClasses_name_RUN]
-#define class_ClassFile_version_minor_H all_bands[e_class_ClassFile_version_minor_H]
-#define class_ClassFile_version_major_H all_bands[e_class_ClassFile_version_major_H]
-#define class_attr_bands all_bands[e_class_attr_bands]
-#define code_headers all_bands[e_code_headers]
-#define code_max_stack all_bands[e_code_max_stack]
-#define code_max_na_locals all_bands[e_code_max_na_locals]
-#define code_handler_count all_bands[e_code_handler_count]
-#define code_handler_start_P all_bands[e_code_handler_start_P]
-#define code_handler_end_PO all_bands[e_code_handler_end_PO]
-#define code_handler_catch_PO all_bands[e_code_handler_catch_PO]
-#define code_handler_class_RCN all_bands[e_code_handler_class_RCN]
-#define code_flags_hi all_bands[e_code_flags_hi]
-#define code_flags_lo all_bands[e_code_flags_lo]
-#define code_attr_count all_bands[e_code_attr_count]
-#define code_attr_indexes all_bands[e_code_attr_indexes]
-#define code_StackMapTable_N all_bands[e_code_StackMapTable_N]
-#define code_StackMapTable_frame_T all_bands[e_code_StackMapTable_frame_T]
-#define code_StackMapTable_local_N all_bands[e_code_StackMapTable_local_N]
-#define code_StackMapTable_stack_N all_bands[e_code_StackMapTable_stack_N]
-#define code_StackMapTable_offset all_bands[e_code_StackMapTable_offset]
-#define code_StackMapTable_T all_bands[e_code_StackMapTable_T]
-#define code_StackMapTable_RC all_bands[e_code_StackMapTable_RC]
-#define code_StackMapTable_P all_bands[e_code_StackMapTable_P]
-#define code_LineNumberTable_N all_bands[e_code_LineNumberTable_N]
-#define code_LineNumberTable_bci_P all_bands[e_code_LineNumberTable_bci_P]
-#define code_LineNumberTable_line all_bands[e_code_LineNumberTable_line]
-#define code_LocalVariableTable_N all_bands[e_code_LocalVariableTable_N]
-#define code_LocalVariableTable_bci_P all_bands[e_code_LocalVariableTable_bci_P]
-#define code_LocalVariableTable_span_O all_bands[e_code_LocalVariableTable_span_O]
-#define code_LocalVariableTable_name_RU all_bands[e_code_LocalVariableTable_name_RU]
-#define code_LocalVariableTable_type_RS all_bands[e_code_LocalVariableTable_type_RS]
-#define code_LocalVariableTable_slot all_bands[e_code_LocalVariableTable_slot]
-#define code_LocalVariableTypeTable_N all_bands[e_code_LocalVariableTypeTable_N]
-#define code_LocalVariableTypeTable_bci_P all_bands[e_code_LocalVariableTypeTable_bci_P]
-#define code_LocalVariableTypeTable_span_O all_bands[e_code_LocalVariableTypeTable_span_O]
-#define code_LocalVariableTypeTable_name_RU all_bands[e_code_LocalVariableTypeTable_name_RU]
-#define code_LocalVariableTypeTable_type_RS all_bands[e_code_LocalVariableTypeTable_type_RS]
-#define code_LocalVariableTypeTable_slot all_bands[e_code_LocalVariableTypeTable_slot]
-#define code_attr_bands all_bands[e_code_attr_bands]
-#define bc_codes all_bands[e_bc_codes]
-#define bc_case_count all_bands[e_bc_case_count]
-#define bc_case_value all_bands[e_bc_case_value]
-#define bc_byte all_bands[e_bc_byte]
-#define bc_short all_bands[e_bc_short]
-#define bc_local all_bands[e_bc_local]
-#define bc_label all_bands[e_bc_label]
-#define bc_intref all_bands[e_bc_intref]
-#define bc_floatref all_bands[e_bc_floatref]
-#define bc_longref all_bands[e_bc_longref]
-#define bc_doubleref all_bands[e_bc_doubleref]
-#define bc_stringref all_bands[e_bc_stringref]
-#define bc_classref all_bands[e_bc_classref]
-#define bc_fieldref all_bands[e_bc_fieldref]
-#define bc_methodref all_bands[e_bc_methodref]
-#define bc_imethodref all_bands[e_bc_imethodref]
-#define bc_thisfield all_bands[e_bc_thisfield]
-#define bc_superfield all_bands[e_bc_superfield]
-#define bc_thismethod all_bands[e_bc_thismethod]
-#define bc_supermethod all_bands[e_bc_supermethod]
-#define bc_initref all_bands[e_bc_initref]
-#define bc_escref all_bands[e_bc_escref]
-#define bc_escrefsize all_bands[e_bc_escrefsize]
-#define bc_escsize all_bands[e_bc_escsize]
-#define bc_escbyte all_bands[e_bc_escbyte]
-#define file_name all_bands[e_file_name]
-#define file_size_hi all_bands[e_file_size_hi]
-#define file_size_lo all_bands[e_file_size_lo]
-#define file_modtime all_bands[e_file_modtime]
-#define file_options all_bands[e_file_options]