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author | Thomas Groman <tgroman@nuegia.net> | 2019-09-19 00:41:48 -0700 |
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committer | Thomas Groman <tgroman@nuegia.net> | 2019-09-19 00:41:48 -0700 |
commit | 32b3ed0a1362a4b0798ad71fac3450fb77cb7e41 (patch) | |
tree | 7be7a2f602e6a5af7bc2db86bef9cf2a659c3d3d /libraries/pack200/src/bands.h | |
parent | 5fb2c6334e7d5237db11695b4c0ec0f2d1e47c88 (diff) | |
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merged from 0.6.7 codebase
Diffstat (limited to 'libraries/pack200/src/bands.h')
-rw-r--r-- | libraries/pack200/src/bands.h | 604 |
1 files changed, 302 insertions, 302 deletions
diff --git a/libraries/pack200/src/bands.h b/libraries/pack200/src/bands.h index a56cd7d5..66c5aec4 100644 --- a/libraries/pack200/src/bands.h +++ b/libraries/pack200/src/bands.h @@ -30,138 +30,138 @@ 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) + 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); + 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[]; @@ -173,179 +173,179 @@ extern band all_bands[]; // 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 + // 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: |