From b6d455a02bd338e9dc0faa09d4d8177ecd8d569a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= Date: Sun, 10 Apr 2016 15:53:05 +0200 Subject: NOISSUE reorganize and document libraries --- depends/classparser/src/annotations.cpp | 85 ---------- depends/classparser/src/annotations.h | 277 -------------------------------- depends/classparser/src/classfile.h | 156 ------------------ depends/classparser/src/constants.h | 220 ------------------------- depends/classparser/src/errors.h | 8 - depends/classparser/src/javaendian.h | 76 --------- depends/classparser/src/javautils.cpp | 83 ---------- depends/classparser/src/membuffer.h | 63 -------- 8 files changed, 968 deletions(-) delete mode 100644 depends/classparser/src/annotations.cpp delete mode 100644 depends/classparser/src/annotations.h delete mode 100644 depends/classparser/src/classfile.h delete mode 100644 depends/classparser/src/constants.h delete mode 100644 depends/classparser/src/errors.h delete mode 100644 depends/classparser/src/javaendian.h delete mode 100644 depends/classparser/src/javautils.cpp delete mode 100644 depends/classparser/src/membuffer.h (limited to 'depends/classparser/src') diff --git a/depends/classparser/src/annotations.cpp b/depends/classparser/src/annotations.cpp deleted file mode 100644 index d1a7c046..00000000 --- a/depends/classparser/src/annotations.cpp +++ /dev/null @@ -1,85 +0,0 @@ -#include "classfile.h" -#include "annotations.h" -#include - -namespace java -{ -std::string annotation::toString() -{ - std::ostringstream ss; - ss << "Annotation type : " << type_index << " - " << pool[type_index].str_data << std::endl; - ss << "Contains " << name_val_pairs.size() << " pairs:" << std::endl; - for (unsigned i = 0; i < name_val_pairs.size(); i++) - { - std::pair &val = name_val_pairs[i]; - auto name_idx = val.first; - ss << pool[name_idx].str_data << "(" << name_idx << ")" - << " = " << val.second->toString() << std::endl; - } - return ss.str(); -} - -annotation *annotation::read(util::membuffer &input, constant_pool &pool) -{ - uint16_t type_index = 0; - input.read_be(type_index); - annotation *ann = new annotation(type_index, pool); - - uint16_t num_pairs = 0; - input.read_be(num_pairs); - while (num_pairs) - { - uint16_t name_idx = 0; - // read name index - input.read_be(name_idx); - auto elem = element_value::readElementValue(input, pool); - // read value - ann->add_pair(name_idx, elem); - num_pairs--; - } - return ann; -} - -element_value *element_value::readElementValue(util::membuffer &input, - java::constant_pool &pool) -{ - element_value_type type = INVALID; - input.read(type); - uint16_t index = 0; - uint16_t index2 = 0; - std::vector vals; - switch (type) - { - case PRIMITIVE_BYTE: - case PRIMITIVE_CHAR: - case PRIMITIVE_DOUBLE: - case PRIMITIVE_FLOAT: - case PRIMITIVE_INT: - case PRIMITIVE_LONG: - case PRIMITIVE_SHORT: - case PRIMITIVE_BOOLEAN: - case STRING: - input.read_be(index); - return new element_value_simple(type, index, pool); - case ENUM_CONSTANT: - input.read_be(index); - input.read_be(index2); - return new element_value_enum(type, index, index2, pool); - case CLASS: // Class - input.read_be(index); - return new element_value_class(type, index, pool); - case ANNOTATION: // Annotation - // FIXME: runtime visibility info needs to be passed from parent - return new element_value_annotation(ANNOTATION, annotation::read(input, pool), pool); - case ARRAY: // Array - input.read_be(index); - for (int i = 0; i < index; i++) - { - vals.push_back(element_value::readElementValue(input, pool)); - } - return new element_value_array(ARRAY, vals, pool); - default: - throw new java::classfile_exception(); - } -} -} \ No newline at end of file diff --git a/depends/classparser/src/annotations.h b/depends/classparser/src/annotations.h deleted file mode 100644 index aa25d241..00000000 --- a/depends/classparser/src/annotations.h +++ /dev/null @@ -1,277 +0,0 @@ -#pragma once -#include "classfile.h" -#include -#include - -namespace java -{ -enum element_value_type : uint8_t -{ - INVALID = 0, - STRING = 's', - ENUM_CONSTANT = 'e', - CLASS = 'c', - ANNOTATION = '@', - ARRAY = '[', // one array dimension - PRIMITIVE_INT = 'I', // integer - PRIMITIVE_BYTE = 'B', // signed byte - PRIMITIVE_CHAR = 'C', // Unicode character code point in the Basic Multilingual Plane, - // encoded with UTF-16 - PRIMITIVE_DOUBLE = 'D', // double-precision floating-point value - PRIMITIVE_FLOAT = 'F', // single-precision floating-point value - PRIMITIVE_LONG = 'J', // long integer - PRIMITIVE_SHORT = 'S', // signed short - PRIMITIVE_BOOLEAN = 'Z' // true or false -}; -/** - * The element_value structure is a discriminated union representing the value of an - *element-value pair. - * It is used to represent element values in all attributes that describe annotations - * - RuntimeVisibleAnnotations - * - RuntimeInvisibleAnnotations - * - RuntimeVisibleParameterAnnotations - * - RuntimeInvisibleParameterAnnotations). - * - * The element_value structure has the following format: - */ -class element_value -{ -protected: - element_value_type type; - constant_pool &pool; - -public: - element_value(element_value_type type, constant_pool &pool) : type(type), pool(pool) {}; - - element_value_type getElementValueType() - { - return type; - } - - virtual std::string toString() = 0; - - static element_value *readElementValue(util::membuffer &input, constant_pool &pool); -}; - -/** - * Each value of the annotations table represents a single runtime-visible annotation on a - * program element. - * The annotation structure has the following format: - */ -class annotation -{ -public: - typedef std::vector> value_list; - -protected: - /** - * The value of the type_index item must be a valid index into the constant_pool table. - * The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure - * representing a field descriptor representing the annotation type corresponding - * to the annotation represented by this annotation structure. - */ - uint16_t type_index; - /** - * map between element_name_index and value. - * - * The value of the element_name_index item must be a valid index into the constant_pool - *table. - * The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure - *representing - * a valid field descriptor (§4.3.2) that denotes the name of the annotation type element - *represented - * by this element_value_pairs entry. - */ - value_list name_val_pairs; - /** - * Reference to the parent constant pool - */ - constant_pool &pool; - -public: - annotation(uint16_t type_index, constant_pool &pool) - : type_index(type_index), pool(pool) {}; - ~annotation() - { - for (unsigned i = 0; i < name_val_pairs.size(); i++) - { - delete name_val_pairs[i].second; - } - } - void add_pair(uint16_t key, element_value *value) - { - name_val_pairs.push_back(std::make_pair(key, value)); - } - ; - value_list::const_iterator begin() - { - return name_val_pairs.cbegin(); - } - value_list::const_iterator end() - { - return name_val_pairs.cend(); - } - std::string toString(); - static annotation *read(util::membuffer &input, constant_pool &pool); -}; -typedef std::vector annotation_table; - -/// type for simple value annotation elements -class element_value_simple : public element_value -{ -protected: - /// index of the constant in the constant pool - uint16_t index; - -public: - element_value_simple(element_value_type type, uint16_t index, constant_pool &pool) - : element_value(type, pool), index(index) { - // TODO: verify consistency - }; - uint16_t getIndex() - { - return index; - } - virtual std::string toString() - { - return pool[index].toString(); - } - ; -}; -/// The enum_const_value item is used if the tag item is 'e'. -class element_value_enum : public element_value -{ -protected: - /** - * The value of the type_name_index item must be a valid index into the constant_pool table. - * The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure - * representing a valid field descriptor (§4.3.2) that denotes the internal form of the - * binary - * name (§4.2.1) of the type of the enum constant represented by this element_value - * structure. - */ - uint16_t typeIndex; - /** - * The value of the const_name_index item must be a valid index into the constant_pool - * table. - * The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure - * representing the simple name of the enum constant represented by this element_value - * structure. - */ - uint16_t valueIndex; - -public: - element_value_enum(element_value_type type, uint16_t typeIndex, uint16_t valueIndex, - constant_pool &pool) - : element_value(type, pool), typeIndex(typeIndex), valueIndex(valueIndex) - { - // TODO: verify consistency - } - uint16_t getValueIndex() - { - return valueIndex; - } - uint16_t getTypeIndex() - { - return typeIndex; - } - virtual std::string toString() - { - return "enum value"; - } - ; -}; - -class element_value_class : public element_value -{ -protected: - /** - * The class_info_index item must be a valid index into the constant_pool table. - * The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure - * representing the return descriptor (§4.3.3) of the type that is reified by the class - * represented by this element_value structure. - * - * For example, 'V' for Void.class, 'Ljava/lang/Object;' for Object, etc. - * - * Or in plain english, you can store type information in annotations. Yay. - */ - uint16_t classIndex; - -public: - element_value_class(element_value_type type, uint16_t classIndex, constant_pool &pool) - : element_value(type, pool), classIndex(classIndex) - { - // TODO: verify consistency - } - uint16_t getIndex() - { - return classIndex; - } - virtual std::string toString() - { - return "class"; - } - ; -}; - -/// nested annotations... yay -class element_value_annotation : public element_value -{ -private: - annotation *nestedAnnotation; - -public: - element_value_annotation(element_value_type type, annotation *nestedAnnotation, - constant_pool &pool) - : element_value(type, pool), nestedAnnotation(nestedAnnotation) {}; - ~element_value_annotation() - { - if (nestedAnnotation) - { - delete nestedAnnotation; - nestedAnnotation = nullptr; - } - } - virtual std::string toString() - { - return "nested annotation"; - } - ; -}; - -/// and arrays! -class element_value_array : public element_value -{ -public: - typedef std::vector elem_vec; - -protected: - elem_vec values; - -public: - element_value_array(element_value_type type, std::vector &values, - constant_pool &pool) - : element_value(type, pool), values(values) {}; - ~element_value_array() - { - for (unsigned i = 0; i < values.size(); i++) - { - delete values[i]; - } - } - ; - elem_vec::const_iterator begin() - { - return values.cbegin(); - } - elem_vec::const_iterator end() - { - return values.cend(); - } - virtual std::string toString() - { - return "array"; - } - ; -}; -} \ No newline at end of file diff --git a/depends/classparser/src/classfile.h b/depends/classparser/src/classfile.h deleted file mode 100644 index a5e7ee50..00000000 --- a/depends/classparser/src/classfile.h +++ /dev/null @@ -1,156 +0,0 @@ -#pragma once -#include "membuffer.h" -#include "constants.h" -#include "annotations.h" -#include -namespace java -{ -/** - * Class representing a Java .class file - */ -class classfile : public util::membuffer -{ -public: - classfile(char *data, std::size_t size) : membuffer(data, size) - { - valid = false; - is_synthetic = false; - read_be(magic); - if (magic != 0xCAFEBABE) - throw new classfile_exception(); - read_be(minor_version); - read_be(major_version); - constants.load(*this); - read_be(access_flags); - read_be(this_class); - read_be(super_class); - - // Interfaces - uint16_t iface_count = 0; - read_be(iface_count); - while (iface_count) - { - uint16_t iface; - read_be(iface); - interfaces.push_back(iface); - iface_count--; - } - - // Fields - // read fields (and attributes from inside fields) (and possible inner classes. yay for - // recursion!) - // for now though, we will ignore all attributes - /* - * field_info - * { - * u2 access_flags; - * u2 name_index; - * u2 descriptor_index; - * u2 attributes_count; - * attribute_info attributes[attributes_count]; - * } - */ - uint16_t field_count = 0; - read_be(field_count); - while (field_count) - { - // skip field stuff - skip(6); - // and skip field attributes - uint16_t attr_count = 0; - read_be(attr_count); - while (attr_count) - { - skip(2); - uint32_t attr_length = 0; - read_be(attr_length); - skip(attr_length); - attr_count--; - } - field_count--; - } - - // class methods - /* - * method_info - * { - * u2 access_flags; - * u2 name_index; - * u2 descriptor_index; - * u2 attributes_count; - * attribute_info attributes[attributes_count]; - * } - */ - uint16_t method_count = 0; - read_be(method_count); - while (method_count) - { - skip(6); - // and skip method attributes - uint16_t attr_count = 0; - read_be(attr_count); - while (attr_count) - { - skip(2); - uint32_t attr_length = 0; - read_be(attr_length); - skip(attr_length); - attr_count--; - } - method_count--; - } - - // class attributes - // there are many kinds of attributes. this is just the generic wrapper structure. - // type is decided by attribute name. extensions to the standard are *possible* - // class annotations are one kind of a attribute (one per class) - /* - * attribute_info - * { - * u2 attribute_name_index; - * u4 attribute_length; - * u1 info[attribute_length]; - * } - */ - uint16_t class_attr_count = 0; - read_be(class_attr_count); - while (class_attr_count) - { - uint16_t name_idx = 0; - read_be(name_idx); - uint32_t attr_length = 0; - read_be(attr_length); - - auto name = constants[name_idx]; - if (name.str_data == "RuntimeVisibleAnnotations") - { - uint16_t num_annotations = 0; - read_be(num_annotations); - while (num_annotations) - { - visible_class_annotations.push_back(annotation::read(*this, constants)); - num_annotations--; - } - } - else - skip(attr_length); - class_attr_count--; - } - valid = true; - } - ; - bool valid; - bool is_synthetic; - uint32_t magic; - uint16_t minor_version; - uint16_t major_version; - constant_pool constants; - uint16_t access_flags; - uint16_t this_class; - uint16_t super_class; - // interfaces this class implements ? must be. investigate. - std::vector interfaces; - // FIXME: doesn't free up memory on delete - java::annotation_table visible_class_annotations; -}; -} \ No newline at end of file diff --git a/depends/classparser/src/constants.h b/depends/classparser/src/constants.h deleted file mode 100644 index 242b943e..00000000 --- a/depends/classparser/src/constants.h +++ /dev/null @@ -1,220 +0,0 @@ -#pragma once -#include "errors.h" -#include - -namespace java -{ -class constant -{ -public: - enum type_t : uint8_t - { - j_hole = 0, // HACK: this is a hole in the array, because java is crazy - j_string_data = 1, - j_int = 3, - j_float = 4, - j_long = 5, - j_double = 6, - j_class = 7, - j_string = 8, - j_fieldref = 9, - j_methodref = 10, - j_interface_methodref = 11, - j_nameandtype = 12 - } type; - - constant(util::membuffer &buf) - { - buf.read(type); - // invalid constant type! - if (type > j_nameandtype || type == (type_t)0 || type == (type_t)2) - throw new classfile_exception(); - - // load data depending on type - switch (type) - { - case j_float: - case j_int: - buf.read_be(int_data); // same as float data really - break; - case j_double: - case j_long: - buf.read_be(long_data); // same as double - break; - case j_class: - buf.read_be(ref_type.class_idx); - break; - case j_fieldref: - case j_methodref: - case j_interface_methodref: - buf.read_be(ref_type.class_idx); - buf.read_be(ref_type.name_and_type_idx); - break; - case j_string: - buf.read_be(index); - break; - case j_string_data: - // HACK HACK: for now, we call these UTF-8 and do no further processing. - // Later, we should do some decoding. It's really modified UTF-8 - // * U+0000 is represented as 0xC0,0x80 invalid character - // * any single zero byte ends the string - // * characters above U+10000 are encoded like in CESU-8 - buf.read_jstr(str_data); - break; - case j_nameandtype: - buf.read_be(name_and_type.name_index); - buf.read_be(name_and_type.descriptor_index); - break; - } - } - - constant(int fake) - { - type = j_hole; - } - - std::string toString() - { - std::ostringstream ss; - switch (type) - { - case j_hole: - ss << "Fake legacy entry"; - break; - case j_float: - ss << "Float: " << float_data; - break; - case j_double: - ss << "Double: " << double_data; - break; - case j_int: - ss << "Int: " << int_data; - break; - case j_long: - ss << "Long: " << long_data; - break; - case j_string_data: - ss << "StrData: " << str_data; - break; - case j_string: - ss << "Str: " << index; - break; - case j_fieldref: - ss << "FieldRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; - break; - case j_methodref: - ss << "MethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; - break; - case j_interface_methodref: - ss << "IfMethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; - break; - case j_class: - ss << "Class: " << ref_type.class_idx; - break; - case j_nameandtype: - ss << "NameAndType: " << name_and_type.name_index << " " - << name_and_type.descriptor_index; - break; - } - return ss.str(); - } - - std::string str_data; /** String data in 'modified utf-8'.*/ - // store everything here. - union - { - int32_t int_data; - int64_t long_data; - float float_data; - double double_data; - uint16_t index; - struct - { - /** - * Class reference: - * an index within the constant pool to a UTF-8 string containing - * the fully qualified class name (in internal format) - * Used for j_class, j_fieldref, j_methodref and j_interface_methodref - */ - uint16_t class_idx; - // used for j_fieldref, j_methodref and j_interface_methodref - uint16_t name_and_type_idx; - } ref_type; - struct - { - uint16_t name_index; - uint16_t descriptor_index; - } name_and_type; - }; -}; - -/** - * A helper class that represents the custom container used in Java class file for storage of - * constants - */ -class constant_pool -{ -public: - /** - * Create a pool of constants - */ - constant_pool() - { - } - /** - * Load a java constant pool - */ - void load(util::membuffer &buf) - { - uint16_t length = 0; - buf.read_be(length); - length--; - uint16_t index = 1; - const constant *last_constant = nullptr; - while (length) - { - const constant &cnst = constant(buf); - constants.push_back(cnst); - last_constant = &constants[constants.size() - 1]; - if (last_constant->type == constant::j_double || - last_constant->type == constant::j_long) - { - // push in a fake constant to preserve indexing - constants.push_back(constant(0)); - length -= 2; - index += 2; - } - else - { - length--; - index++; - } - } - } - typedef std::vector container_type; - /** - * Access constants based on jar file index numbers (index of the first element is 1) - */ - java::constant &operator[](std::size_t constant_index) - { - if (constant_index == 0 || constant_index > constants.size()) - { - throw new classfile_exception(); - } - return constants[constant_index - 1]; - } - ; - container_type::const_iterator begin() const - { - return constants.begin(); - } - ; - container_type::const_iterator end() const - { - return constants.end(); - } - -private: - container_type constants; -}; -} diff --git a/depends/classparser/src/errors.h b/depends/classparser/src/errors.h deleted file mode 100644 index ddbbd828..00000000 --- a/depends/classparser/src/errors.h +++ /dev/null @@ -1,8 +0,0 @@ -#pragma once -#include -namespace java -{ -class classfile_exception : public std::exception -{ -}; -} diff --git a/depends/classparser/src/javaendian.h b/depends/classparser/src/javaendian.h deleted file mode 100644 index d488b382..00000000 --- a/depends/classparser/src/javaendian.h +++ /dev/null @@ -1,76 +0,0 @@ -#pragma once -#include - -/** - * Swap bytes between big endian and local number representation - */ -namespace util -{ -#ifdef MULTIMC_BIG_ENDIAN -inline uint64_t bigswap(uint64_t x) -{ - return x; -} -; -inline uint32_t bigswap(uint32_t x) -{ - return x; -} -; -inline uint16_t bigswap(uint16_t x) -{ - return x; -} -; -inline int64_t bigswap(int64_t x) -{ - return x; -} -; -inline int32_t bigswap(int32_t x) -{ - return x; -} -; -inline int16_t bigswap(int16_t x) -{ - return x; -} -; -#else -inline uint64_t bigswap(uint64_t x) -{ - return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) | - ((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) | - ((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56); -} -; -inline uint32_t bigswap(uint32_t x) -{ - return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24); -} -; -inline uint16_t bigswap(uint16_t x) -{ - return (x >> 8) | (x << 8); -} -; -inline int64_t bigswap(int64_t x) -{ - return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) | - ((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) | - ((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56); -} -; -inline int32_t bigswap(int32_t x) -{ - return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24); -} -; -inline int16_t bigswap(int16_t x) -{ - return (x >> 8) | (x << 8); -} -; -#endif -} diff --git a/depends/classparser/src/javautils.cpp b/depends/classparser/src/javautils.cpp deleted file mode 100644 index f9310e5f..00000000 --- a/depends/classparser/src/javautils.cpp +++ /dev/null @@ -1,83 +0,0 @@ -/* Copyright 2013-2015 MultiMC Contributors - * - * Authors: Orochimarufan - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#include "classfile.h" -#include "javautils.h" - -#include -#include - -namespace javautils -{ - -QString GetMinecraftJarVersion(QString jarName) -{ - QString version = MCVer_Unknown; - - // check if minecraft.jar exists - QFile jar(jarName); - if (!jar.exists()) - return version; - - // open minecraft.jar - QuaZip zip(&jar); - if (!zip.open(QuaZip::mdUnzip)) - return version; - - // open Minecraft.class - zip.setCurrentFile("net/minecraft/client/Minecraft.class", QuaZip::csSensitive); - QuaZipFile Minecraft(&zip); - if (!Minecraft.open(QuaZipFile::ReadOnly)) - return version; - - // read Minecraft.class - qint64 size = Minecraft.size(); - char *classfile = new char[size]; - Minecraft.read(classfile, size); - - // parse Minecraft.class - try - { - char *temp = classfile; - java::classfile MinecraftClass(temp, size); - java::constant_pool constants = MinecraftClass.constants; - for (java::constant_pool::container_type::const_iterator iter = constants.begin(); - iter != constants.end(); iter++) - { - const java::constant &constant = *iter; - if (constant.type != java::constant::j_string_data) - continue; - const std::string &str = constant.str_data; - if (str.compare(0, 20, "Minecraft Minecraft ") == 0) - { - version = str.substr(20).data(); - break; - } - } - } - catch (java::classfile_exception &) - { - } - - // clean up - delete[] classfile; - Minecraft.close(); - zip.close(); - jar.close(); - - return version; -} -} diff --git a/depends/classparser/src/membuffer.h b/depends/classparser/src/membuffer.h deleted file mode 100644 index ab83412a..00000000 --- a/depends/classparser/src/membuffer.h +++ /dev/null @@ -1,63 +0,0 @@ -#pragma once -#include -#include -#include -#include -#include "javaendian.h" - -namespace util -{ -class membuffer -{ -public: - membuffer(char *buffer, std::size_t size) - { - current = start = buffer; - end = start + size; - } - ~membuffer() - { - // maybe? possibly? left out to avoid confusion. for now. - // delete start; - } - /** - * Read some value. That's all ;) - */ - template void read(T &val) - { - val = *(T *)current; - current += sizeof(T); - } - /** - * Read a big-endian number - * valid for 2-byte, 4-byte and 8-byte variables - */ - template void read_be(T &val) - { - val = util::bigswap(*(T *)current); - current += sizeof(T); - } - /** - * Read a string in the format: - * 2B length (big endian, unsigned) - * length bytes data - */ - void read_jstr(std::string &str) - { - uint16_t length = 0; - read_be(length); - str.append(current, length); - current += length; - } - /** - * Skip N bytes - */ - void skip(std::size_t N) - { - current += N; - } - -private: - char *start, *end, *current; -}; -} -- cgit v1.2.3