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21 Commits

Author SHA1 Message Date
c803572e24 Internal Changes 2024-12-18 01:19:11 -05:00
308a36b4ba Remove/Rename Some Stuff 2024-11-08 02:28:05 -05:00
f72c4f0567 Pass Original As Reference 2024-09-21 02:53:02 -04:00
5d2b146b08 Prevent Double Construction Issues 2024-09-20 21:30:38 -04:00
2a63f1ff52 Finish Improving Performance 2024-08-02 00:56:22 -04:00
199eecda97 WIP 2024-08-01 21:57:31 -04:00
10026e9a04 Finishing Touches! 2024-07-17 06:40:04 -04:00
b0814f257a Refactor! 2024-07-17 03:47:32 -04:00
6f792dfb16 Tweak 2024-07-16 13:46:20 -04:00
46c486e56a Reference Support 2024-07-15 03:02:29 -04:00
346d4403df Misc 2024-07-14 22:10:04 -04:00
11342dbb78 Small Fix 2024-07-14 05:04:32 -04:00
be25749aa4 Some Changes 2024-07-14 05:03:18 -04:00
6098f57b03 Attempt To Fix Rare Segfault 2024-06-15 10:18:41 -04:00
8249a305df The Compiler Strikes Back! 2024-05-24 04:44:11 -04:00
eb49f25fa4 Attack Of The Templates! 2024-05-18 18:58:18 -04:00
fbb9b6d6da Better Static Properties 2024-05-17 02:52:31 -04:00
603010e3cc Remove alloc_*() Functions 2024-05-17 00:36:06 -04:00
eca52455c3 Bug Fix 2024-05-15 04:58:55 -04:00
9697b35de4 Small Change 2024-05-09 17:48:37 -04:00
853481bd9a Add Backup Properties & Update Syntax Highlighting 2024-05-05 00:40:22 -04:00
14 changed files with 583 additions and 335 deletions

10
data/out.cpp Normal file
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@ -0,0 +1,10 @@
#define LEAN_SYMBOLS_HEADER
#include "{{ headerPath }}"
// Thunk Template
template <auto *const *func>
decltype(auto) __thunk(auto... args) {
return (*func)->get_thunk_target()(std::forward<decltype(args)>(args)...);
}
{{ main }}

174
data/out.h Normal file
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@ -0,0 +1,174 @@
#pragma once
// Check Architecture
#ifndef __arm__
#error "Symbols Are ARM-Only"
#endif
// Headers
#include <variant>
#include <functional>
#include <cstddef>
#include <string>
#include <vector>
#include <map>
#include <type_traits>
#include <cstring>
// Internal Macros
#define __PREVENT_DESTRUCTION(self) \
~self() = delete
#define __PREVENT_CONSTRUCTION(self) \
self() = delete; \
__PREVENT_DESTRUCTION(self)
#define __PREVENT_COPY(self) \
self(const self &) = delete; \
self &operator=(const self &) = delete
// Virtual Function Information
struct __VirtualFunctionInfo {
// Constructors
template <typename Ret, typename Self, typename Super, typename... Args>
__VirtualFunctionInfo(Ret (**const addr_)(Self, Args...), Ret (*const parent_)(Super, Args...)):
addr((void **) addr_),
parent((void *) parent_) {}
template <typename T>
__VirtualFunctionInfo(T **const addr_, const std::nullptr_t parent_):
__VirtualFunctionInfo(addr_, (T *) parent_) {}
// Method
[[nodiscard]] bool can_overwrite() const {
return *addr != parent;
}
// Properties
void **const addr;
void *const parent;
};
// Thunks
typedef void *(*thunk_enabler_t)(void *target, void *thunk);
extern thunk_enabler_t thunk_enabler;
// Function Information
template <typename T>
class __Function;
template <typename Ret, typename... Args>
class __Function<Ret(Args...)> {
// Prevent Copying
__PREVENT_COPY(__Function);
__PREVENT_DESTRUCTION(__Function);
public:
// Types
typedef Ret (*ptr_type)(Args...);
typedef std::function<Ret(Args...)> type;
typedef std::function<Ret(const type &, Args...)> overwrite_type;
// Normal Function
__Function(const std::string name_, const ptr_type thunk_, const ptr_type func_):
func(func_),
enabled(true),
name(name_),
backup(func_),
thunk(thunk_) {}
// Virtual Function
template <typename Parent>
__Function(const std::string name_, const ptr_type thunk_, ptr_type *const func_, const Parent parent):
func(__VirtualFunctionInfo(func_, parent)),
enabled(std::get<__VirtualFunctionInfo>(func).can_overwrite()),
name(name_),
backup(*get_vtable_addr()),
thunk(thunk_) {}
// Overwrite Function
[[nodiscard]] bool overwrite(overwrite_type target) {
// Check If Enabled
if (!enabled) {
return false;
}
// Enable Thunk
enable_thunk();
// Overwrite
type original = get_thunk_target();
thunk_target = [original, target](Args... args) {
return target(original, std::forward<Args>(args)...);
};
return true;
}
// Getters
[[nodiscard]] ptr_type get(bool result_will_be_stored) {
if (!enabled) {
return nullptr;
} else {
if (result_will_be_stored) {
enable_thunk();
}
if (is_virtual()) {
return *get_vtable_addr();
} else {
return std::get<ptr_type>(func);
}
}
}
[[nodiscard]] ptr_type *get_vtable_addr() const {
return (ptr_type *) std::get<__VirtualFunctionInfo>(func).addr;
}
[[nodiscard]] type get_thunk_target() const {
if (thunk_target) {
return thunk_target;
} else {
return backup;
}
}
private:
// Current Function
std::variant<ptr_type, __VirtualFunctionInfo> func;
[[nodiscard]] bool is_virtual() const {
return func.index() == 1;
}
public:
// State
const bool enabled;
const std::string name;
// Backup Of Original Function Pointer
const ptr_type backup;
private:
// Thunk
const ptr_type thunk;
type thunk_target;
bool thunk_enabled = false;
void enable_thunk() {
if (!thunk_enabled && enabled) {
ptr_type real_thunk = (ptr_type) thunk_enabler((void *) backup, (void *) thunk);
if (!is_virtual()) {
func = real_thunk;
}
thunk_enabled = true;
}
}
};
// Shortcuts
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
// Forward Declarations
{{ forwardDeclarations }}
// Extra Headers
{{ extraHeaders }}
// Warnings
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Winvalid-offsetof"
#pragma GCC diagnostic ignored "-Wshadow"
{{ main }}
// Cleanup Warnings
#pragma GCC diagnostic pop

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@ -1,4 +1,5 @@
import * as fs from 'node:fs';
import * as path from 'node:path';
export const INDENT = ' ';
export const POINTER_SIZE = 4;
@ -23,12 +24,13 @@ export function parseTypeAndName(piece: string) {
let name = piece.substring(index + 1)!;
let type = piece.substring(0, index)!;
// Move Asterisks From Name To Type
while (name.startsWith('*')) {
while (name.startsWith('*') || name.startsWith('&')) {
const x = name.substring(0, 1);
name = name.substring(1);
if (!type.endsWith('*')) {
if (!type.endsWith('*') && !type.endsWith('&')) {
type += ' ';
}
type += '*';
type += x;
}
// Return
return {type, name};
@ -56,7 +58,7 @@ export function toUpperSnakeCase(str: string) {
return out;
}
export function formatType(type: string) {
if (!type.endsWith('*')) {
if (!type.endsWith('*') && !type.endsWith('&')) {
type += ' ';
}
return type;
@ -66,14 +68,7 @@ export function toHex(x: number) {
return '0x' + x.toString(16);
}
export function assertSize(name: string, size: number) {
let out = '';
// Define Size Macro
const macro = toUpperSnakeCase(name) + '_SIZE';
out += `#define ${macro} ${toHex(size)}\n`;
// Check Size
out += `static_assert(sizeof(${name}) == ${macro}, "Invalid Size");\n`;
// Return
return out;
return `static_assert(sizeof(${name}) == ${toHex(size)}, "Invalid Size");\n`;
}
export function safeParseInt(str: string) {
const x = parseInt(str);
@ -85,39 +80,28 @@ export function safeParseInt(str: string) {
export function getSelfArg(type: string) {
return `${type} *self`;
}
export function getArgNames(args: string) {
// Remove Parentheses
args = args.substring(1, args.length - 1);
if (args.length === 0) {
return [];
}
// Split
const argsList = args.split(',');
// Parse
const out = [];
for (let arg of argsList) {
arg = arg.trim();
// Remove Type
const nameStart = Math.max(arg.lastIndexOf(' '), arg.lastIndexOf('*')) + 1;
arg = arg.substring(nameStart);
// Collect
out.push(arg);
}
// Return
return out;
}
export function prependArg(args: string, arg: string) {
if (args !== '()') {
arg += ', ';
}
return '(' + arg + args.substring(1);
}
export function removeFirstArg(args: string) {
let index = args.indexOf(',');
if (index === -1) {
index = args.indexOf(')');
} else {
index++;
}
return '(' + args.substring(index).trim();
export function getDataDir() {
return path.join(__dirname, '..', 'data');
}
export function formatFile(file: string, options: {[key: string]: string}) {
file = path.join(getDataDir(), file);
let data = fs.readFileSync(file, {encoding: 'utf8'});
for (const key in options) {
data = data.replace(`{{ ${key} }}`, options[key]!);
}
return data.trim() + '\n';
}
export const INTERNAL = '__';
export function preventConstruction(self: string) {
let out = '';
out += `${INDENT}${INTERNAL}PREVENT_CONSTRUCTION(${self});\n`;
out += `${INDENT}${INTERNAL}PREVENT_COPY(${self});\n`;
return out;
}
export const LEAN_HEADER_GUARD = '#ifndef LEAN_SYMBOLS_HEADER\n';

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@ -1,5 +1,6 @@
import * as fs from 'node:fs';
import { STRUCTURE_FILES, EXTENSION, INDENT } from './common';
import * as path from 'node:path';
import { STRUCTURE_FILES, EXTENSION, formatFile, getDataDir } from './common';
import { getStructure } from './map';
import { Struct } from './struct';
@ -14,14 +15,13 @@ function invalidFileType(file: string) {
throw new Error(`Invalid File Type: ${file}`);
}
const sourceOutput = process.argv.shift()!;
if (!sourceOutput.endsWith('.cpp')) {
invalidFileType(sourceOutput);
}
fs.rmSync(sourceOutput, {force: true, recursive: true});
fs.mkdirSync(sourceOutput, {recursive: true});
const headerOutput = process.argv.shift()!;
if (!headerOutput.endsWith('.h')) {
invalidFileType(headerOutput);
}
const extraHeaders: string[] = [];
const extraHeaderFiles: string[] = [];
while (process.argv.length > 0) {
const file = process.argv.shift()!;
if (file.endsWith(EXTENSION)) {
@ -36,7 +36,7 @@ while (process.argv.length > 0) {
STRUCTURE_FILES[name] = file;
} else if (file.endsWith('.h')) {
// Extra Headers
extraHeaders.push(file);
extraHeaderFiles.push(file);
} else {
// Invalid File Type
invalidFileType(file);
@ -52,9 +52,9 @@ function loadSymbols() {
}
// Sort
structureObjects.sort((a, b) => {
if (a.getName() > b.getName()) {
if (a.name > b.name) {
return 1;
} else if (a.getName() < b.getName()) {
} else if (a.name < b.name) {
return -1;
} else {
return 0;
@ -112,14 +112,8 @@ function makeHeaderPart() {
// Generate Code
let structures = '';
let isFirst = true;
for (const structure of structureObjects) {
const name = structure.getName();
if (isFirst) {
isFirst = false;
} else {
structures += '\n';
}
const name = structure.name;
structures += `// ${name}\n`;
try {
structures += structure.generate();
@ -127,90 +121,68 @@ function makeHeaderPart() {
console.log(`Error Generating Header: ${name}: ${e instanceof Error ? e.stack : e}`);
process.exit(1);
}
structures += '\n';
}
// Return
let result = '';
result += '// Init\n';
result += 'void init_symbols();\n\n';
result += structures;
return result;
return structures;
}
// Create Main Header
function makeMainHeader(output: string) {
let result = '';
result += '#pragma once\n';
result += '\n// Check Architecture\n';
result += '#ifndef __arm__\n';
result += '#error "Symbols Are ARM-Only"\n';
result += '#endif\n';
result += '\n// Shortcuts\n';
result += 'typedef unsigned char uchar;\n';
result += 'typedef unsigned short ushort;\n';
result += 'typedef unsigned int uint;\n';
result += '\n// Forward Declarations\n';
// Forward Declarations
let forwardDeclarations = '';
for (const name in STRUCTURE_FILES) {
result += `typedef struct ${name} ${name};\n`;
forwardDeclarations += `typedef struct ${name} ${name};\n`;
}
result += '\n// Extra Headers\n';
for (const file of extraHeaders) {
result += fs.readFileSync(file, {encoding: 'utf8'});
forwardDeclarations = forwardDeclarations.trim();
// Extra Headers
let extraHeaders = '';
for (const file of extraHeaderFiles) {
extraHeaders += fs.readFileSync(file, {encoding: 'utf8'});
}
result += '\n// Headers\n';
result += '#include <cstddef>\n';
result += '#include <string>\n';
result += '#include <vector>\n';
result += '#include <map>\n';
result += '\n// Warnings\n';
result += '#pragma GCC diagnostic push\n';
result += '#pragma GCC diagnostic ignored "-Winvalid-offsetof"\n';
result += '#pragma GCC diagnostic ignored "-Wshadow"\n\n';
result += makeHeaderPart();
result += '\n// Cleanup Warnings\n';
result += '#pragma GCC diagnostic pop\n';
extraHeaders = extraHeaders.trim();
// Main
const main = makeHeaderPart().trim();
// Write
const result = formatFile('out.h', {forwardDeclarations, extraHeaders, main, data: getDataDir()});
fs.writeFileSync(output, result);
}
makeMainHeader(headerOutput);
// Generate Compiled Code
function makeCompiledCode(output: string) {
function makeCompiledCode(outputDir: string) {
// Load Symbols
const structureObjects = loadSymbols();
// Generate
let declarations = '';
let init = '';
let isFirst = true;
let first = true;
for (const structure of structureObjects) {
const name = structure.getName();
if (isFirst) {
isFirst = false;
} else {
declarations += '\n';
init += '\n';
// Thunks
let declarations = '';
if (first) {
first = false;
declarations += '// Thunk Enabler\n';
declarations += 'thunk_enabler_t thunk_enabler;\n\n';
}
// Structure
const name = structure.name;
declarations += `// ${name}\n`;
init += `${INDENT}// ${name}\n`;
try {
const code = structure.generateCode();
declarations += code.functions;
init += code.init;
declarations += structure.generateCode().trim();
} catch (e) {
console.log(`Error Generating Code: ${name}: ${e instanceof Error ? e.stack : e}`);
process.exit(1);
}
}
declarations += '\n';
// Write
let result = '';
result += `#include "${fs.realpathSync(headerOutput)}"\n`;
result += '\n#include <cstring>\n';
result += '\n// Init\n';
result += 'void init_symbols() {\n';
result += init;
result += '}\n\n';
result += declarations;
const headerPath = fs.realpathSync(headerOutput);
const main = declarations.trim();
const result = formatFile('out.cpp', {headerPath, main, data: getDataDir()});
const output = path.join(outputDir, name + '.cpp');
fs.writeFileSync(output, result);
}
}
makeCompiledCode(sourceOutput);

View File

@ -116,29 +116,29 @@ export function load(target: Struct, name: string, isExtended: boolean) {
case 'vtable-size': {
// Set VTable Size
if (!isExtended) {
target.setVTableSize(safeParseInt(args));
target.getVTable().setSize(safeParseInt(args));
}
break;
}
case 'vtable': {
// Set VTable Address
target.ensureVTable();
const vtable = target.getVTable();
if (!isExtended && args.length > 0) {
target.setVTableAddress(safeParseInt(args));
vtable.setAddress(safeParseInt(args));
}
break;
}
case 'property': {
// Add Property
const info = parseProperty(args);
target.addProperty(new Property(info.offset, info.type, info.name, target.getName()));
target.addProperty(new Property(info.offset, info.type, info.name, target.name));
break;
}
case 'static-property': {
// Add Static Property
if (!isExtended) {
const info = parseProperty(args);
target.addStaticProperty(new StaticProperty(info.offset, info.type, info.name, target.getName()));
target.addStaticProperty(new StaticProperty(info.offset, info.type, info.name, target.name));
}
break;
}
@ -150,14 +150,14 @@ export function load(target: Struct, name: string, isExtended: boolean) {
}
case 'virtual-method': {
// Add Virtual Method
const method = parseMethod(args, target.getName(), true, isExtended);
const method = parseMethod(args, target.name, true, isExtended);
target.addMethod(method, true);
break;
}
case 'static-method': {
// Add Static Method
if (!isExtended) {
const method = parseMethod(args, target.getName(), false, false);
const method = parseMethod(args, target.name, false, false);
target.addMethod(method, false);
}
break;
@ -165,7 +165,7 @@ export function load(target: Struct, name: string, isExtended: boolean) {
case 'constructor': {
// Constructor
if (!isExtended) {
let data = `${target.getName()} *constructor`;
let data = `${target.name} *constructor`;
if (args.startsWith('(')) {
// No Custom Name
data += ' ';
@ -174,14 +174,22 @@ export function load(target: Struct, name: string, isExtended: boolean) {
data += '_';
}
data += args;
const method = parseMethod(data, target.getName(), true, false);
const method = parseMethod(data, target.name, true, false);
target.addMethod(method, false);
}
break;
}
case 'vtable-destructor-offset': {
// Set VTable Destructor Offset
target.setVTableDestructorOffset(safeParseInt(args));
target.getVTable().setDestructorOffset(safeParseInt(args));
break;
}
case 'mark-as-simple': {
// Mark As Simple
if (isExtended) {
throw new Error('Cannot Extend Simple Structure');
}
target.markAsSimple();
break;
}
default: {

View File

@ -1,4 +1,4 @@
import { INDENT, formatType, getArgNames } from './common';
import { INDENT, INTERNAL, formatType, toHex } from './common';
export class Method {
readonly self: string;
@ -7,7 +7,6 @@ export class Method {
readonly args: string;
readonly address: number;
readonly isInherited: boolean;
readonly hasVarargs: boolean;
readonly isStatic: boolean;
// Constructor
@ -18,56 +17,55 @@ export class Method {
this.args = args;
this.address = address;
this.isInherited = isInherited;
this.hasVarargs = this.args.includes('...');
this.isStatic = isStatic;
}
// Get Type
getNameWithCustomSelf(self: string) {
return `${self}_${this.shortName}`;
}
getName() {
return this.getNameWithCustomSelf(this.self);
// Getters
getName(separator: string = '_') {
return this.self + separator + this.shortName;
}
getType() {
return `${this.getName()}_t`;
return this.getName() + '_t';
}
#getRawType() {
return INTERNAL + 'raw_' + this.getType();
}
getProperty() {
return `${INDENT}${this.#getRawType()} *${this.shortName};\n`;
}
#getFullType() {
return `${INTERNAL}Function<${this.#getRawType()}>`;
}
// Generate Type Definition
generateTypedef() {
// Typedefs
generateTypedefs() {
let out = '';
// Normal Definition
const returnType = formatType(this.returnType);
out += `typedef ${returnType}(*${this.getType()})${this.args};\n`;
// Fancy Overwrite Does Not Support Varargs
if (!this.hasVarargs) {
// Overwrite Helper
out += `#define __overwrite_helper_for_${this.getName()}(method, original) \\\n`;
out += `${INDENT}[]${this.args} { \\\n`;
out += `${INDENT}${INDENT}${returnType.trim() === 'void' ? '' : 'return '}method(${['original'].concat(getArgNames(this.args)).join(', ')}); \\\n`;
out += `${INDENT}}\n`;
}
// Return
out += `typedef ${formatType(this.returnType.trim())}${this.#getRawType()}${this.args.trim()};\n`;
out += `typedef const std::function<${this.#getRawType()}> &${this.getType()};\n`;
return out;
}
// Generate Variable Definition
generateDefinition(nameSuffix?: string) {
return `${this.getType()} ${this.getName()}${nameSuffix !== undefined ? nameSuffix : ''};\n`;
// Overwrite Helper
#getVirtualCall(self: string = this.self) {
return `${self}_vtable::base->${this.shortName}`;
}
// Generate "New Method" Test
generateNewMethodTest(parent: string | null, prefix: string, suffix: string) {
let out = `#define __is_new_method_${this.getName()}() (`;
if (!this.isInherited) {
out += 'true';
generate(code: boolean, isVirtual: boolean, parentSelf?: string) {
let out = '';
out += 'extern ';
const type = this.#getFullType();
out += `${type} *const ${this.getName()}`;
if (code) {
out += ` = new ${type}(${JSON.stringify(this.getName('::'))}, `;
out += `${INTERNAL}thunk<&${this.getName()}>, `;
if (isVirtual) {
const parentMethod = parentSelf ? this.#getVirtualCall(parentSelf) : 'nullptr';
out += `&${this.#getVirtualCall()}, ${parentMethod}`;
} else {
out += `((void *) ${prefix}${this.getName()}${suffix}) != ((void *) ${prefix}${this.getNameWithCustomSelf(parent!)}${suffix})`;
out += `(${this.#getRawType()} *) ${toHex(this.address)}`;
}
out += ')\n';
out += ')';
}
out += ';\n';
return out;
}
}

View File

@ -1,4 +1,4 @@
import { formatType } from './common';
import { INTERNAL, formatType } from './common';
export class Property {
readonly offset: number;
@ -16,7 +16,7 @@ export class Property {
// Getters
type() {
return `__type_${this.fullName()}`;
return `${INTERNAL}type_${this.fullName()}`;
}
typedef() {
let arrayInfo = '';
@ -34,8 +34,14 @@ export class Property {
}
return name;
}
#fullName(separator: string) {
return this.#self + separator + this.name();
}
fullName() {
return `${this.#self}_${this.name()}`;
return this.#fullName('_');
}
prettyName() {
return this.#fullName('::');
}
rawType() {
return this.#type;
@ -48,13 +54,8 @@ export class StaticProperty extends Property {
super(address, type, name, self);
}
// Generate Variable Definition
globalPointerDefinition() {
return `${this.type()} *${this.fullName()}_pointer;\n`;
}
// Generate Macro
macro() {
return `#define ${this.fullName()} (*${this.fullName()}_pointer)\n`;
// Reference
referenceDefinition(addSelf: boolean) {
return `${this.type()} &${addSelf ? this.prettyName() : this.name()}`;
}
}

View File

@ -1,10 +1,10 @@
import { INDENT, STRUCTURE_FILES, toHex, assertSize, formatType, getArgNames, removeFirstArg } from './common';
import { INDENT, STRUCTURE_FILES, toHex, assertSize, INTERNAL, preventConstruction, LEAN_HEADER_GUARD } from './common';
import { Method } from './method';
import { Property, StaticProperty } from './property';
import { VTable } from './vtable';
export class Struct {
readonly #name: string;
readonly name: string;
#vtable: VTable | null;
readonly #methods: Method[];
readonly #properties: Property[];
@ -12,10 +12,11 @@ export class Struct {
readonly #dependencies: string[];
readonly #staticProperties: StaticProperty[];
#directParent: string | null;
#isSimple: boolean;
// Constructor
constructor(name: string) {
this.#name = name;
this.name = name;
this.#methods = [];
this.#properties = [];
this.#vtable = null;
@ -23,6 +24,7 @@ export class Struct {
this.#dependencies = [];
this.#staticProperties = [];
this.#directParent = null;
this.#isSimple = false;
}
// Dependencies
@ -34,39 +36,29 @@ export class Struct {
}
// Ensure VTable Exists
ensureVTable() {
getVTable() {
if (this.#vtable === null) {
this.#vtable = new VTable(this.#name);
this.#vtable = new VTable(this.name);
this.addProperty(this.#vtable.property);
}
}
// Set VTable Destructor Offset
setVTableDestructorOffset(offset: number) {
this.ensureVTable();
this.#vtable!.setDestructorOffset(offset);
return this.#vtable;
}
// Setters
setSize(size: number) {
this.#size = size;
}
// Getters
getName() {
return this.#name;
}
// Add Method
addMethod(method: Method, isVirtual: boolean) {
if (method.returnType !== this.#name && method.returnType in STRUCTURE_FILES) {
if (method.returnType !== this.name && method.returnType in STRUCTURE_FILES) {
this.#addDependency(method.returnType);
}
if (isVirtual) {
if (method.self !== this.#name) {
if (method.self !== this.name) {
throw new Error();
}
this.ensureVTable();
this.#vtable!.add(method);
this.getVTable().add(method);
} else {
if (method.isInherited) {
this.#addDependency(method.self);
@ -88,14 +80,21 @@ export class Struct {
this.#staticProperties.push(property);
}
// Configure VTable
setVTableSize(size: number) {
this.ensureVTable();
this.#vtable!.setSize(size);
// "Simple" Structures
markAsSimple() {
this.#isSimple = true;
}
#checkSimple() {
const checks = [
['Cannot Inherit', this.#directParent !== null],
['Must Have A Defined Size', this.#size === null],
['Cannot Have A VTable', this.#vtable !== null]
];
for (const check of checks) {
if (check[1]) {
throw new Error('Simple Structures ' + check[0]);
}
}
setVTableAddress(address: number) {
this.ensureVTable();
this.#vtable!.setAddress(address);
}
// Generate Properties
@ -127,7 +126,9 @@ export class Struct {
if (lastProperty) {
paddingSize += ` - sizeof(${lastProperty.type()})`;
}
out += `${INDENT}uchar __padding${i}[${paddingSize}];\n`;
if (!this.#isSimple) {
out += `${INDENT}uchar ${INTERNAL}padding${i}[${paddingSize}];\n`;
}
// The Actual Property
if (property !== sizeProperty) {
@ -138,51 +139,52 @@ export class Struct {
}
// Generate C++ Method Shortcuts
#generateMethod(method: Method, isVirtual: boolean) {
let out = '';
out += INDENT;
if (method.isStatic) {
out += 'static ';
}
out += `decltype(auto) ${method.shortName}(auto&&... args) {\n`;
out += `${INDENT}${INDENT}return `;
if (isVirtual) {
out += `this->vtable->${method.shortName}`;
} else {
out += `${method.getName()}->get(false)`;
}
out += '(';
if (!method.isStatic) {
out += `(${method.self} *) this, `;
}
out += 'std::forward<decltype(args)>(args)...);\n';
out += `${INDENT}}\n`;
return out;
}
#generateMethods() {
let out = '';
out += LEAN_HEADER_GUARD;
// Normal Methods
const getArgsOuter = (method: Method) => {
let out = method.args;
if (!method.isStatic) {
// Remove "self"
out = removeFirstArg(out);
}
return out;
};
const getArgsInner = (method: Method) => {
const list = getArgNames(method.args);
if (!method.isStatic) {
// Replace "self" With "this"
list[0] = `(${method.self} *) this`;
}
return list.join(', ');
};
for (const method of this.#methods) {
if (!method.hasVarargs) {
const returnType = method.returnType;
const shortName = method.shortName;
const fullName = method.getName();
const args = getArgsOuter(method);
out += `${INDENT}inline ${formatType(returnType)}${shortName}${args} { \\\n`;
out += `${INDENT}${INDENT}${returnType.trim() === 'void' ? '' : 'return '}${fullName}(${getArgsInner(method)});\n`;
out += `${INDENT}}\n`;
}
out += this.#generateMethod(method, false);
}
// Virtual Methods
if (this.#vtable !== null) {
const virtualMethods = this.#vtable.getMethods();
for (const method of virtualMethods) {
if (method && !method.hasVarargs) {
const returnType = method.returnType;
const shortName = method.shortName;
const args = getArgsOuter(method);
out += `${INDENT}inline ${formatType(returnType)}${shortName}${args} { \\\n`;
out += `${INDENT}${INDENT}${returnType.trim() === 'void' ? '' : 'return '}this->vtable->${shortName}(${getArgsInner(method)});\n`;
if (method) {
out += this.#generateMethod(method, true);
}
}
}
// Allocation Method
if (this.#size !== null) {
// THIS DOES NOT CONSTRUCT THE OBJECT
out += `${INDENT}static ${this.name} *allocate() {\n`;
out += `${INDENT}${INDENT}return (${this.name} *) ::operator new(sizeof(${this.name}));\n`;
out += `${INDENT}}\n`;
}
}
}
// Return
out += '#endif\n';
return out;
}
@ -190,25 +192,19 @@ export class Struct {
generate() {
let out = '';
// Static Properties
for (const property of this.#staticProperties) {
out += property.typedef();
out += `extern ${property.globalPointerDefinition()}`;
out += property.macro();
}
// Methods
for (const method of this.#methods) {
if (!method.isInherited) {
out += method.generateTypedef();
out += `extern ${method.generateDefinition()}`;
out += method.generateNewMethodTest(this.#directParent, '', '');
}
// Check "Simple" Status
if (this.#isSimple) {
this.#checkSimple();
}
// VTable
if (this.#vtable !== null) {
out += this.#vtable.generate(this.#directParent);
out += this.#vtable.generate();
}
// Static Properties
for (const property of this.#staticProperties) {
out += property.typedef();
}
// Property Typedefs
@ -216,10 +212,32 @@ export class Struct {
out += property.typedef();
}
// Method Wrappers
let typedefs = '';
let methodsOut = '';
for (const method of this.#methods) {
if (!method.isInherited) {
typedefs += method.generateTypedefs();
methodsOut += method.generate(false, false);
}
}
out += typedefs;
out += LEAN_HEADER_GUARD;
out += methodsOut;
out += '#endif\n';
// Structure
out += `struct ${this.#name} {\n`;
out += `struct ${this.name} final {\n`;
out += this.#generateProperties();
out += this.#generateMethods();
for (const property of this.#staticProperties) {
// Static Property References
out += `${INDENT}static ${property.referenceDefinition(false)};\n`;
}
if (!this.#isSimple) {
// Disable Construction Of Complex Structures
out += preventConstruction(this.name);
}
out += `};\n`;
// Sanity Check Offsets
@ -227,17 +245,12 @@ export class Struct {
const property = this.#properties[i]!;
const name = property.name();
const offset = property.offset;
out += `static_assert(offsetof(${this.#name}, ${name}) == ${toHex(offset)}, "Invalid Offset");\n`;
out += `static_assert(offsetof(${this.name}, ${name}) == ${toHex(offset)}, "Invalid Offset");\n`;
}
// Sanity Check Size
if (this.#size !== null) {
out += assertSize(this.#name, this.#size);
}
// Allocation Function
if (this.#size !== null) {
out += `${this.#name} *alloc_${this.#name}();\n`;
out += assertSize(this.name, this.#size);
}
// Return
@ -246,39 +259,28 @@ export class Struct {
// Generate Compiled Code
generateCode() {
let declarations = '';
let init = '';
let out = '';
// Static Properties
for (const property of this.#staticProperties) {
init += `${INDENT}${property.fullName()}_pointer = (${property.type()} *) ${toHex(property.offset)};\n`;
declarations += property.globalPointerDefinition();
out += `${property.referenceDefinition(true)} = *(${property.type()} *) ${toHex(property.offset)};\n`;
}
// Methods
for (const method of this.#methods) {
if (!method.isInherited) {
init += `${INDENT}${method.getName()} = (${method.getType()}) ${toHex(method.address)};\n`;
declarations += method.generateDefinition();
out += method.generate(true, false);
}
}
// VTable
if (this.#vtable !== null) {
const vtable = this.#vtable.generateCode();
declarations += vtable.declarations;
init += vtable.init;
}
// Allocation Function
if (this.#size !== null) {
declarations += `${this.#name} *alloc_${this.#name}() {\n`;
declarations += `${INDENT}return new ${this.#name};\n`;
declarations += '}\n';
const vtable = this.#vtable.generateCode(this.#directParent);
out += vtable;
}
// Return
return {functions: declarations, init};
return out;
}
// Set Direct Parent (Used For "New Method" Testing)

View File

@ -1,7 +1,8 @@
import { INDENT, POINTER_SIZE, RTTI_SIZE, assertSize, getSelfArg, toHex } from './common';
import { INDENT, LEAN_HEADER_GUARD, POINTER_SIZE, assertSize, getSelfArg, preventConstruction, toHex } from './common';
import { Method } from './method';
import { Property } from './property';
const structuresWithVTableAddress: string[] = [];
export class VTable {
readonly #self: string;
#address: number | null;
@ -24,6 +25,7 @@ export class VTable {
// Setters
setAddress(address: number) {
this.#address = address;
structuresWithVTableAddress.push(this.#self);
}
setSize(size: number) {
this.#size = size;
@ -84,34 +86,69 @@ export class VTable {
return out;
}
// Get Parent Method
#getParentSelf(method: Method, parent: string | null) {
if (method.isInherited) {
// Parent Exists
let out: string;
if (structuresWithVTableAddress.includes(parent!)) {
out = parent!;
} else {
// Unable To Determine
out = this.#self;
}
return out;
} else {
// Method Has No Parent
return undefined;
}
}
// Generate Header Code
generate(directParent: string | null) {
canGenerateWrappers() {
return this.#address !== null;
}
generate() {
let out = '';
// Check
this.#check();
// Method Prototypes
// Wrappers
const methods = this.getMethods();
for (let i = 0; i < methods.length; i++) {
const info = methods[i];
let typedefs = '';
let methodsOut = '';
for (const info of methods) {
if (info) {
out += info.generateTypedef();
typedefs += info.generateTypedefs();
if (this.canGenerateWrappers()) {
methodsOut += info.generate(false, true);
}
}
}
out += typedefs;
out += LEAN_HEADER_GUARD;
out += methodsOut;
out += '#endif\n';
// Structure
out += `typedef struct ${this.#getName()} ${this.#getName()};\n`;
out += `struct ${this.#getName()} {\n`;
out += `struct ${this.#getName()} final {\n`;
for (let i = 0; i < methods.length; i++) {
let name = `unknown${i}`;
let type = 'void *';
const info = methods[i];
if (info) {
name = info.shortName;
type = info.getType() + ' ';
out += info.getProperty();
} else {
out += `${INDENT}void *unknown${i};\n`;
}
out += `${INDENT}${type}${name};\n`;
}
if (this.#size === null) {
// Prevent Construction
out += preventConstruction(this.#getName());
}
if (this.#address !== null) {
// Base
out += `${INDENT}static ${this.#getName()} *base;\n`;
}
out += `};\n`;
@ -120,34 +157,13 @@ export class VTable {
out += assertSize(this.#getName(), this.#size);
}
// Pointers
if (this.#address !== null) {
// Base
out += `extern ${this.#getName()} *${this.#getName()}_base;\n`;
// Methods
for (let i = 0; i < methods.length; i++) {
const info = methods[i];
if (info) {
const type = `${info.getType()} *`;
out += `extern ${type}${info.getName()}_vtable_addr;\n`;
out += info.generateNewMethodTest(directParent, '*', '_vtable_addr');
}
}
}
// Duplication Method
if (this.#size !== null) {
out += `${this.#getName()} *dup_${this.#getName()}(${this.#getName()} *vtable);\n`;
}
// Return
return out;
}
// Generate Compiled Code
generateCode() {
let declarations = '';
let init = '';
generateCode(directParent: string | null) {
let out = '';
// Check
this.#check();
@ -155,38 +171,20 @@ export class VTable {
// Pointers
if (this.#address !== null) {
// Base
init += `${INDENT}${this.#getName()}_base = (${this.#getName()} *) ${toHex(this.#address)};\n`;
declarations += `${this.#getName()} *${this.#getName()}_base;\n`;
// Methods
const methods = this.getMethods();
for (let i = 0; i < methods.length; i++) {
const info = methods[i];
if (info) {
const vtableAddress = this.#address + (i * POINTER_SIZE);
const type = `${info.getType()} *`;
init += `${INDENT}${info.getName()}_vtable_addr = (${type}) ${toHex(vtableAddress)};\n`;
declarations += `${type}${info.getName()}_vtable_addr;\n`;
}
}
out += `${this.#getName()} *${this.#getName()}::base = (${this.#getName()} *) ${toHex(this.#address)};\n`;
}
// Duplication Method
if (this.#size !== null) {
declarations += `${this.#getName()} *dup_${this.#getName()}(${this.#getName()} *vtable) {\n`;
declarations += `${INDENT}uchar *real_vtable = (uchar *) vtable;\n`;
declarations += `${INDENT}real_vtable -= ${RTTI_SIZE};\n`;
declarations += `${INDENT}size_t real_vtable_size = sizeof(${this.#getName()}) + ${RTTI_SIZE};\n`;
declarations += `${INDENT}uchar *new_vtable = (uchar *) ::operator new(real_vtable_size);\n`;
declarations += `${INDENT}if (new_vtable == NULL) {\n`;
declarations += `${INDENT}${INDENT}return NULL;\n`;
declarations += `${INDENT}}\n`;
declarations += `${INDENT}memcpy((void *) new_vtable, (void *) real_vtable, real_vtable_size);\n`;
declarations += `${INDENT}new_vtable += ${RTTI_SIZE};\n`;
declarations += `${INDENT}return (${this.#getName()} *) new_vtable;\n`;
declarations += '}\n';
// Method Wrappers
if (this.canGenerateWrappers()) {
const methods = this.getMethods();
for (const info of methods) {
if (info) {
out += info.generate(true, true, this.#getParentSelf(info, directParent));
}
}
}
// Return
return {declarations, init};
return out;
}
}

View File

@ -13,8 +13,10 @@
<item>static-method</item>
<item>constructor</item>
<item>vtable-destructor-offset</item>
<item>mark-as-simple</item>
</list>
<list name="types">
<item>const</item>
<item>char</item>
<item>uchar</item>
<item>short</item>

View File

@ -2,16 +2,20 @@ syntax def "\.def$"
comment "//"
# Commands
color magenta "\<(extends|size|vtable(-size|-destructor-offset)?|property|static-property|((static|virtual)-)?method|constructor)\>"
color magenta "\<(extends|size|vtable(-size|-destructor-offset)?|property|static-property|((static|virtual)-)?method|constructor|mark-as-simple)\>"
# Types
color green "\<(char|uchar|short|ushort|int|uint|float|bool|void|std::(string|vector|map))\>"
color green "\<((u?(char|short|int))|float|bool|void|std::(string|vector|map))\>"
# Numbers
color yellow "0x[a-f0-9]+"
# Non-hex numbers
color red " [0-9][a-f0-9]+;"
# Comments
color brightblue "//.*"
# Whitespace.
color normal "[[:space:]]+"
# Trailing whitespace.
color ,green "[[:space:]]+$"

View File

@ -0,0 +1,24 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>name</key>
<string>Comments</string>
<key>scope</key>
<string>source.toml</string>
<key>settings</key>
<dict>
<key>shellVariables</key>
<array>
<dict>
<key>name</key>
<string>TM_COMMENT_START</string>
<key>value</key>
<string>//</string>
</dict>
</array>
</dict>
<key>uuid</key>
<string>C5C885D7-2733-4632-B709-B5B9DD518F90</string>
</dict>
</plist>

View File

@ -0,0 +1,55 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>fileTypes</key>
<array>
<string>def</string>
</array>
<key>scopeName</key>
<string>source.symbol-processor</string>
<key>name</key>
<string>Symbol Processor Definition</string>
<key>patterns</key>
<array>
<dict>
<key>name</key>
<string>comment.line.double-slash.symbol-processor</string>
<key>match</key>
<string>//.*$</string>
</dict>
<dict>
<key>name</key>
<string>constant.numeric.symbol-processor.hex</string>
<key>match</key>
<string>\b0[xX][0-9a-fA-F]+</string>
</dict>
<dict>
<key>name</key>
<string>constant.numeric.symbol-processor.decimal</string>
<key>match</key>
<string>\b[0-9]+</string>
</dict>
<dict>
<key>name</key>
<string>keyword.control.symbol-processor</string>
<key>match</key>
<string>\b(extends|size|vtable-size|vtable-destructor-offset|vtable|property|static-property|method|virtual-method|static-method|constructor|mark-as-simple)\b</string>
</dict>
<dict>
<key>name</key>
<string>storage.type.symbol-processor</string>
<key>match</key>
<string>\b(const|char|uchar|short|ushort|int|uint|float|bool|void|std::string|std::vector|std::map|unsigned|long)\b</string>
</dict>
<dict>
<key>name</key>
<string>keyword.operator.symbol-processor</string>
<key>match</key>
<string>(=|;)</string>
</dict>
</array>
<key>uuid</key>
<string>D44198D4-5AEB-40E5-B4E4-0E11C69FFA42</string>
</dict>
</plist>

View File

@ -0,0 +1,16 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>contactEmailRot13</key>
<string>connor24nolan@live.com</string>
<key>contactName</key>
<string>TheBrokenRail</string>
<key>description</key>
<string>Symbol Processor Definition File</string>
<key>name</key>
<string>Symbol Processor</string>
<key>uuid</key>
<string>8209EEB8-4193-4E63-BDBB-0407E47ADF50</string>
</dict>
</plist>