NOISSUE fix unitialized data warning on Arch Linux
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a222c94d34
commit
8108c61745
@ -32,7 +32,7 @@ set(CMAKE_C_STANDARD_REQUIRED true)
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_C_STANDARD 11)
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include(GenerateExportHeader)
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set(CMAKE_CXX_FLAGS " -Wall -pedantic -Werror -D_GLIBCXX_USE_CXX11_ABI=0 ${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS " -Wall -pedantic -Werror -D_GLIBCXX_USE_CXX11_ABI=0 -fstack-protector-strong --param=ssp-buffer-size=4 -O3 -D_FORTIFY_SOURCE=2 ${CMAKE_CXX_FLAGS}")
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if(UNIX AND APPLE)
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set(CMAKE_CXX_FLAGS " -stdlib=libc++ ${CMAKE_CXX_FLAGS}")
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endif()
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@ -59,7 +59,7 @@ QString GetMinecraftJarVersion(QString jarName)
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iter != constants.end(); iter++)
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{
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const java::constant &constant = *iter;
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if (constant.type != java::constant::j_string_data)
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if (constant.type != java::constant_type_t::j_string_data)
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continue;
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const std::string &str = constant.str_data;
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qDebug() << QString::fromStdString(str);
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@ -4,25 +4,46 @@
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namespace java
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{
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enum class constant_type_t : uint8_t
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{
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j_hole = 0, // HACK: this is a hole in the array, because java is crazy
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j_string_data = 1,
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j_int = 3,
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j_float = 4,
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j_long = 5,
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j_double = 6,
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j_class = 7,
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j_string = 8,
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j_fieldref = 9,
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j_methodref = 10,
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j_interface_methodref = 11,
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j_nameandtype = 12
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// FIXME: missing some constant types, see https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.4
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};
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struct ref_type_t
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{
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/**
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* Class reference:
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* an index within the constant pool to a UTF-8 string containing
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* the fully qualified class name (in internal format)
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* Used for j_class, j_fieldref, j_methodref and j_interface_methodref
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*/
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uint16_t class_idx;
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// used for j_fieldref, j_methodref and j_interface_methodref
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uint16_t name_and_type_idx;
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};
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struct name_and_type_t
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{
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uint16_t name_index;
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uint16_t descriptor_index;
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};
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class constant
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{
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public:
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enum type_t : uint8_t
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{
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j_hole = 0, // HACK: this is a hole in the array, because java is crazy
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j_string_data = 1,
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j_int = 3,
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j_float = 4,
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j_long = 5,
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j_double = 6,
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j_class = 7,
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j_string = 8,
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j_fieldref = 9,
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j_methodref = 10,
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j_interface_methodref = 11,
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j_nameandtype = 12
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// FIXME: missing some constant types, see https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.4
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} type;
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constant_type_t type = constant_type_t::j_hole;
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constant(util::membuffer &buf)
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{
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@ -31,27 +52,31 @@ public:
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// load data depending on type
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switch (type)
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{
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case j_float:
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case j_int:
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buf.read_be(int_data); // same as float data really
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case constant_type_t::j_float:
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buf.read_be(data.int_data);
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break;
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case j_double:
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case j_long:
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buf.read_be(long_data); // same as double
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case constant_type_t::j_int:
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buf.read_be(data.int_data); // same as float data really
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break;
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case j_class:
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buf.read_be(ref_type.class_idx);
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case constant_type_t::j_double:
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buf.read_be(data.long_data);
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break;
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case j_fieldref:
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case j_methodref:
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case j_interface_methodref:
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buf.read_be(ref_type.class_idx);
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buf.read_be(ref_type.name_and_type_idx);
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case constant_type_t::j_long:
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buf.read_be(data.long_data); // same as double
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break;
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case j_string:
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buf.read_be(index);
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case constant_type_t::j_class:
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buf.read_be(data.ref_type.class_idx);
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break;
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case j_string_data:
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case constant_type_t::j_fieldref:
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case constant_type_t::j_methodref:
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case constant_type_t::j_interface_methodref:
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buf.read_be(data.ref_type.class_idx);
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buf.read_be(data.ref_type.name_and_type_idx);
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break;
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case constant_type_t::j_string:
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buf.read_be(data.index);
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break;
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case constant_type_t::j_string_data:
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// HACK HACK: for now, we call these UTF-8 and do no further processing.
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// Later, we should do some decoding. It's really modified UTF-8
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// * U+0000 is represented as 0xC0,0x80 invalid character
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@ -59,19 +84,17 @@ public:
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// * characters above U+10000 are encoded like in CESU-8
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buf.read_jstr(str_data);
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break;
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case j_nameandtype:
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buf.read_be(name_and_type.name_index);
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buf.read_be(name_and_type.descriptor_index);
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case constant_type_t::j_nameandtype:
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buf.read_be(data.name_and_type.name_index);
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buf.read_be(data.name_and_type.descriptor_index);
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break;
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default:
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// invalid constant type!
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throw new classfile_exception();
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}
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}
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constant(int)
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{
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type = j_hole;
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}
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std::string toString()
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@ -79,42 +102,42 @@ public:
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std::ostringstream ss;
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switch (type)
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{
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case j_hole:
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case constant_type_t::j_hole:
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ss << "Fake legacy entry";
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break;
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case j_float:
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ss << "Float: " << float_data;
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case constant_type_t::j_float:
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ss << "Float: " << data.float_data;
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break;
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case j_double:
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ss << "Double: " << double_data;
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case constant_type_t::j_double:
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ss << "Double: " << data.double_data;
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break;
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case j_int:
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ss << "Int: " << int_data;
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case constant_type_t::j_int:
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ss << "Int: " << data.int_data;
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break;
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case j_long:
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ss << "Long: " << long_data;
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case constant_type_t::j_long:
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ss << "Long: " << data.long_data;
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break;
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case j_string_data:
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case constant_type_t::j_string_data:
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ss << "StrData: " << str_data;
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break;
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case j_string:
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ss << "Str: " << index;
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case constant_type_t::j_string:
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ss << "Str: " << data.index;
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break;
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case j_fieldref:
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ss << "FieldRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx;
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case constant_type_t::j_fieldref:
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ss << "FieldRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
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break;
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case j_methodref:
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ss << "MethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx;
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case constant_type_t::j_methodref:
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ss << "MethodRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
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break;
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case j_interface_methodref:
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ss << "IfMethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx;
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case constant_type_t::j_interface_methodref:
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ss << "IfMethodRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
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break;
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case j_class:
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ss << "Class: " << ref_type.class_idx;
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case constant_type_t::j_class:
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ss << "Class: " << data.ref_type.class_idx;
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break;
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case j_nameandtype:
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ss << "NameAndType: " << name_and_type.name_index << " "
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<< name_and_type.descriptor_index;
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case constant_type_t::j_nameandtype:
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ss << "NameAndType: " << data.name_and_type.name_index << " "
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<< data.name_and_type.descriptor_index;
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break;
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default:
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ss << "Invalid entry (" << int(type) << ")";
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@ -123,24 +146,6 @@ public:
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return ss.str();
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}
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struct ref_type_t
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{
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/**
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* Class reference:
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* an index within the constant pool to a UTF-8 string containing
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* the fully qualified class name (in internal format)
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* Used for j_class, j_fieldref, j_methodref and j_interface_methodref
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*/
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uint16_t class_idx;
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// used for j_fieldref, j_methodref and j_interface_methodref
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uint16_t name_and_type_idx;
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};
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struct name_and_type_t
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{
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uint16_t name_index;
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uint16_t descriptor_index;
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};
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std::string str_data; /** String data in 'modified utf-8'.*/
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// store everything here.
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@ -153,7 +158,7 @@ public:
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uint16_t index;
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ref_type_t ref_type;
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name_and_type_t name_and_type;
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};
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} data = {0};
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};
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/**
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@ -184,8 +189,8 @@ public:
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const constant &cnst = constant(buf);
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constants.push_back(cnst);
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last_constant = &constants[constants.size() - 1];
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if (last_constant->type == constant::j_double ||
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last_constant->type == constant::j_long)
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if (last_constant->type == constant_type_t::j_double ||
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last_constant->type == constant_type_t::j_long)
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{
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// push in a fake constant to preserve indexing
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constants.push_back(constant(0));
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