├── .devcontainer ├── Dockerfile └── devcontainer.json ├── .gitignore ├── .gitmodules ├── .vscode ├── c_cpp_properties.json ├── settings.json └── tasks.json ├── CMakeLists.txt ├── README.md ├── build.sh ├── dist ├── modern_cpp_lib_js.js └── modern_cpp_lib_js.wasm ├── package.json ├── src ├── CMakeLists.txt ├── jslib.cpp └── pre.js └── test ├── browser └── index.html └── node ├── index.js ├── package-lock.json └── package.json /.devcontainer/Dockerfile: -------------------------------------------------------------------------------- 1 | #------------------------------------------------------------------------------------------------------------- 2 | # Copyright (c) Microsoft Corporation. All rights reserved. 3 | # Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information. 4 | #------------------------------------------------------------------------------------------------------------- 5 | 6 | #FROM mcr.microsoft.com/vscode/devcontainers/base:0-debian-9 7 | FROM trzeci/emscripten 8 | 9 | # Avoid warnings by switching to noninteractive 10 | ENV DEBIAN_FRONTEND=noninteractive 11 | 12 | # This Dockerfile's base image has a non-root user with sudo access. Use the "remoteUser" 13 | # property in devcontainer.json to use it. On Linux, the container user's GID/UIDs 14 | # will be updated to match your local UID/GID (when using the dockerFile property). 15 | # See https://aka.ms/vscode-remote/containers/non-root-user for details. 16 | ARG USERNAME=emscripten 17 | ARG USER_UID=1000 18 | ARG USER_GID=$USER_UID 19 | 20 | # Configure apt and install packages 21 | RUN apt-get update \ 22 | # 23 | # Install C++ tools 24 | && apt-get -y install build-essential cppcheck valgrind \ 25 | 26 | # version 3.17 of cmake 27 | && wget -qO- "https://cmake.org/files/v3.17/cmake-3.17.0-Linux-x86_64.tar.gz" | tar --strip-components=1 -xz -C /usr/local\ 28 | 29 | # 30 | # [Optional] Update UID/GID if needed 31 | && if [ "$USER_GID" != "1000" ] || [ "$USER_UID" != "1000" ]; then \ 32 | groupmod --gid $USER_GID $USERNAME \ 33 | && usermod --uid $USER_UID --gid $USER_GID $USERNAME \ 34 | && chown -R $USER_UID:$USER_GID /home/$USERNAME; \ 35 | fi \ 36 | # 37 | # Clean up 38 | && apt-get autoremove -y \ 39 | && apt-get clean -y \ 40 | && rm -rf /var/lib/apt/lists/* 41 | 42 | # Switch back to dialog for any ad-hoc use of apt-get 43 | ENV DEBIAN_FRONTEND=dialog 44 | -------------------------------------------------------------------------------- /.devcontainer/devcontainer.json: -------------------------------------------------------------------------------- 1 | // For format details, see https://aka.ms/vscode-remote/devcontainer.json or this file's README at: 2 | // https://github.com/microsoft/vscode-dev-containers/tree/v0.112.0/containers/cpp 3 | { 4 | "name": "C++", 5 | "dockerFile": "Dockerfile", 6 | "runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"], 7 | 8 | // Set *default* container specific settings.json values on container create. 9 | "settings": { 10 | "terminal.integrated.shell.linux": "/bin/bash" 11 | }, 12 | 13 | // Add the IDs of extensions you want installed when the container is created. 14 | "extensions": [ 15 | "ms-vscode.cpptools", 16 | "twxs.cmake", 17 | "flixs.vs-code-http-server-and-html-preview" 18 | ], 19 | 20 | // Use 'forwardPorts' to make a list of ports inside the container available locally. 21 | // "forwardPorts": [], 22 | 23 | // Use 'postCreateCommand' to run commands after the container is created. 24 | // "postCreateCommand": "gcc -v", 25 | 26 | // Uncomment to connect as a non-root user. See https://aka.ms/vscode-remote/containers/non-root. 27 | "remoteUser": "emscripten" 28 | 29 | } -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | build/* -------------------------------------------------------------------------------- /.gitmodules: -------------------------------------------------------------------------------- 1 | 2 | [submodule "extern/modern-cpp-lib"] 3 | path = extern/modern-cpp-lib 4 | url = ../../chafey/modern-cpp-lib.git 5 | branch = master 6 | -------------------------------------------------------------------------------- /.vscode/c_cpp_properties.json: -------------------------------------------------------------------------------- 1 | { 2 | "configurations": [ 3 | { 4 | "name": "Linux", 5 | "includePath": [ 6 | "${workspaceFolder}/**", 7 | "${env:EMSCRIPTEN}/system/include" 8 | ], 9 | "defines": [], 10 | "compilerPath": "/emsdk_portable/llvm/clang/bin/clang", 11 | "cStandard": "c11", 12 | "cppStandard": "c++17", 13 | "intelliSenseMode": "clang-x64" 14 | } 15 | ], 16 | "version": 4 17 | } -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "shs.mainFile": "test/browser/index.html" 3 | } -------------------------------------------------------------------------------- /.vscode/tasks.json: -------------------------------------------------------------------------------- 1 | { 2 | // See https://go.microsoft.com/fwlink/?LinkId=733558 3 | // for the documentation about the tasks.json format 4 | "version": "2.0.0", 5 | "tasks": [ 6 | { 7 | "label": "Build", 8 | "type": "shell", 9 | "command": "./build.sh", 10 | "problemMatcher": [], 11 | "group": { 12 | "kind": "build", 13 | "isDefault": true 14 | } 15 | } 16 | ] 17 | } -------------------------------------------------------------------------------- /CMakeLists.txt: -------------------------------------------------------------------------------- 1 | # Only tested with cmake versions 3.17 2 | cmake_minimum_required(VERSION 3.15) 3 | 4 | project (ModernCPPLibJS 5 | LANGUAGES CXX) 6 | 7 | # set the build type if not specified 8 | set(default_build_type "Release") 9 | if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES) 10 | message(STATUS "Setting build type to '${default_build_type}' as none was specified.") 11 | set(CMAKE_BUILD_TYPE "${default_build_type}") 12 | endif() 13 | 14 | # automatically handle git submodules 15 | find_package(Git QUIET) 16 | if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git") 17 | # Update submodules as needed 18 | option(GIT_SUBMODULE "Check submodules during build" ON) 19 | if(GIT_SUBMODULE) 20 | message(STATUS "Submodule update") 21 | #execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive 22 | execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive --remote 23 | WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} 24 | RESULT_VARIABLE GIT_SUBMOD_RESULT) 25 | if(NOT GIT_SUBMOD_RESULT EQUAL "0") 26 | message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules") 27 | endif() 28 | endif() 29 | endif() 30 | 31 | if(NOT EXISTS "${PROJECT_SOURCE_DIR}/extern/modern-cpp-lib/CMakeLists.txt") 32 | message(FATAL_ERROR "The submodules were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.") 33 | endif() 34 | 35 | # add the external library 36 | add_subdirectory(extern/modern-cpp-lib EXCLUDE_FROM_ALL) 37 | 38 | # add the js wrapper 39 | add_subdirectory(src) 40 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # modern-cpp-lib-js 2 | Example showing how to build a JS/WASM version of a C++ library using modern 3 | cmake based on the following: 4 | * https://cliutils.gitlab.io/modern-cmake/chapters/basics/structure.html 5 | * https://gitlab.com/CLIUtils/modern-cmake/tree/master/examples/extended-project 6 | 7 | But expanded to include cross compiling to JavaScript/WASM using Emscripten 8 | 9 | ## Dependencies 10 | 11 | * CMake 3.17 or better 12 | * A C++ compatible compiler 13 | * Emscripten SDK 1.39.4 or better 14 | * NodeJS 8.0 or later 15 | 16 | 17 | ## Visual Studio Code Remote Containers Support 18 | 19 | This project includes support for developing in a docker container using the 20 | Visual Studio Code Remote - Containers extension. The configured docker container 21 | includes emscripten, cmake and gcc so you can build, debug and run this project 22 | immediately without having to deal with toolchain dependencies. The default build task 23 | (shift+control+b) is to configure, build and run the tests 24 | 25 | NOTE: If you don't use VS Code but want to use Docker, you can try using the 26 | Dockerfile in the .devcontainer folder. 27 | 28 | ## Building JS/WASM 29 | 30 | The requirements are: 31 | 32 | * Docker (to build JS/WASM Emscripten) 33 | 34 | To configure, build and test: 35 | 36 | ```bash 37 | ./build.sh 38 | ``` 39 | 40 | After building, you can run the browser based test by running an http server 41 | at the root of this project and opening the file test/browser/index. I use 42 | [HTTP Server / HTML Preview](https://marketplace.visualstudio.com/items?itemName=Flixs.vs-code-http-server-and-html-preview) -------------------------------------------------------------------------------- /build.sh: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | mkdir -p build 3 | #(cd build && emconfigure cmake -DCMAKE_BUILD_TYPE=Debug ..) 4 | (cd build && emconfigure cmake ..) 5 | (cd build && emmake make VERBOSE=1) 6 | (cd test/node; npm run test) 7 | cp ./build/src/modern_cpp_lib_js.* ./dist 8 | -------------------------------------------------------------------------------- /dist/modern_cpp_lib_js.js: -------------------------------------------------------------------------------- 1 | var Module=typeof Module!=="undefined"?Module:{};var moduleOverrides={};var key;for(key in Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key]}}var arguments_=[];var thisProgram="./this.program";var 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createNamedFunction(name,body){name=makeLegalFunctionName(name);return new Function("body","return function "+name+"() {\n"+' "use strict";'+" return body.apply(this, arguments);\n"+"};\n")(body)}function extendError(baseErrorType,errorName){var errorClass=createNamedFunction(errorName,function(message){this.name=errorName;this.message=message;var stack=new Error(message).stack;if(stack!==undefined){this.stack=this.toString()+"\n"+stack.replace(/^Error(:[^\n]*)?\n/,"")}});errorClass.prototype=Object.create(baseErrorType.prototype);errorClass.prototype.constructor=errorClass;errorClass.prototype.toString=function(){if(this.message===undefined){return this.name}else{return this.name+": "+this.message}};return errorClass}var BindingError=undefined;function throwBindingError(message){throw new BindingError(message)}var InternalError=undefined;function throwInternalError(message){throw new InternalError(message)}function whenDependentTypesAreResolved(myTypes,dependentTypes,getTypeConverters){myTypes.forEach(function(type){typeDependencies[type]=dependentTypes});function onComplete(typeConverters){var myTypeConverters=getTypeConverters(typeConverters);if(myTypeConverters.length!==myTypes.length){throwInternalError("Mismatched type converter count")}for(var i=0;i>shift])},destructorFunction:null})}function ClassHandle_isAliasOf(other){if(!(this instanceof ClassHandle)){return false}if(!(other instanceof ClassHandle)){return false}var leftClass=this.$$.ptrType.registeredClass;var left=this.$$.ptr;var rightClass=other.$$.ptrType.registeredClass;var right=other.$$.ptr;while(leftClass.baseClass){left=leftClass.upcast(left);leftClass=leftClass.baseClass}while(rightClass.baseClass){right=rightClass.upcast(right);rightClass=rightClass.baseClass}return leftClass===rightClass&&left===right}function shallowCopyInternalPointer(o){return{count:o.count,deleteScheduled:o.deleteScheduled,preservePointerOnDelete:o.preservePointerOnDelete,ptr:o.ptr,ptrType:o.ptrType,smartPtr:o.smartPtr,smartPtrType:o.smartPtrType}}function throwInstanceAlreadyDeleted(obj){function getInstanceTypeName(handle){return handle.$$.ptrType.registeredClass.name}throwBindingError(getInstanceTypeName(obj)+" instance already deleted")}var finalizationGroup=false;function detachFinalizer(handle){}function runDestructor($$){if($$.smartPtr){$$.smartPtrType.rawDestructor($$.smartPtr)}else{$$.ptrType.registeredClass.rawDestructor($$.ptr)}}function releaseClassHandle($$){$$.count.value-=1;var toDelete=0===$$.count.value;if(toDelete){runDestructor($$)}}function attachFinalizer(handle){if("undefined"===typeof FinalizationGroup){attachFinalizer=function(handle){return handle};return handle}finalizationGroup=new FinalizationGroup(function(iter){for(var result=iter.next();!result.done;result=iter.next()){var $$=result.value;if(!$$.ptr){console.warn("object already deleted: "+$$.ptr)}else{releaseClassHandle($$)}}});attachFinalizer=function(handle){finalizationGroup.register(handle,handle.$$,handle.$$);return handle};detachFinalizer=function(handle){finalizationGroup.unregister(handle.$$)};return attachFinalizer(handle)}function ClassHandle_clone(){if(!this.$$.ptr){throwInstanceAlreadyDeleted(this)}if(this.$$.preservePointerOnDelete){this.$$.count.value+=1;return this}else{var clone=attachFinalizer(Object.create(Object.getPrototypeOf(this),{$$:{value:shallowCopyInternalPointer(this.$$)}}));clone.$$.count.value+=1;clone.$$.deleteScheduled=false;return clone}}function ClassHandle_delete(){if(!this.$$.ptr){throwInstanceAlreadyDeleted(this)}if(this.$$.deleteScheduled&&!this.$$.preservePointerOnDelete){throwBindingError("Object already scheduled for deletion")}detachFinalizer(this);releaseClassHandle(this.$$);if(!this.$$.preservePointerOnDelete){this.$$.smartPtr=undefined;this.$$.ptr=undefined}}function ClassHandle_isDeleted(){return!this.$$.ptr}var delayFunction=undefined;var deletionQueue=[];function flushPendingDeletes(){while(deletionQueue.length){var obj=deletionQueue.pop();obj.$$.deleteScheduled=false;obj["delete"]()}}function ClassHandle_deleteLater(){if(!this.$$.ptr){throwInstanceAlreadyDeleted(this)}if(this.$$.deleteScheduled&&!this.$$.preservePointerOnDelete){throwBindingError("Object already scheduled for deletion")}deletionQueue.push(this);if(deletionQueue.length===1&&delayFunction){delayFunction(flushPendingDeletes)}this.$$.deleteScheduled=true;return this}function init_ClassHandle(){ClassHandle.prototype["isAliasOf"]=ClassHandle_isAliasOf;ClassHandle.prototype["clone"]=ClassHandle_clone;ClassHandle.prototype["delete"]=ClassHandle_delete;ClassHandle.prototype["isDeleted"]=ClassHandle_isDeleted;ClassHandle.prototype["deleteLater"]=ClassHandle_deleteLater}function ClassHandle(){}var registeredPointers={};function ensureOverloadTable(proto,methodName,humanName){if(undefined===proto[methodName].overloadTable){var prevFunc=proto[methodName];proto[methodName]=function(){if(!proto[methodName].overloadTable.hasOwnProperty(arguments.length)){throwBindingError("Function '"+humanName+"' called with an invalid number of arguments ("+arguments.length+") - expects one of ("+proto[methodName].overloadTable+")!")}return proto[methodName].overloadTable[arguments.length].apply(this,arguments)};proto[methodName].overloadTable=[];proto[methodName].overloadTable[prevFunc.argCount]=prevFunc}}function exposePublicSymbol(name,value,numArguments){if(Module.hasOwnProperty(name)){if(undefined===numArguments||undefined!==Module[name].overloadTable&&undefined!==Module[name].overloadTable[numArguments]){throwBindingError("Cannot register public name '"+name+"' twice")}ensureOverloadTable(Module,name,name);if(Module.hasOwnProperty(numArguments)){throwBindingError("Cannot register multiple overloads of a function with the same number of arguments ("+numArguments+")!")}Module[name].overloadTable[numArguments]=value}else{Module[name]=value;if(undefined!==numArguments){Module[name].numArguments=numArguments}}}function RegisteredClass(name,constructor,instancePrototype,rawDestructor,baseClass,getActualType,upcast,downcast){this.name=name;this.constructor=constructor;this.instancePrototype=instancePrototype;this.rawDestructor=rawDestructor;this.baseClass=baseClass;this.getActualType=getActualType;this.upcast=upcast;this.downcast=downcast;this.pureVirtualFunctions=[]}function upcastPointer(ptr,ptrClass,desiredClass){while(ptrClass!==desiredClass){if(!ptrClass.upcast){throwBindingError("Expected null or instance of "+desiredClass.name+", got an instance of "+ptrClass.name)}ptr=ptrClass.upcast(ptr);ptrClass=ptrClass.baseClass}return ptr}function constNoSmartPtrRawPointerToWireType(destructors,handle){if(handle===null){if(this.isReference){throwBindingError("null is not a valid "+this.name)}return 0}if(!handle.$$){throwBindingError('Cannot pass "'+_embind_repr(handle)+'" as a '+this.name)}if(!handle.$$.ptr){throwBindingError("Cannot pass deleted object as a pointer of type "+this.name)}var handleClass=handle.$$.ptrType.registeredClass;var ptr=upcastPointer(handle.$$.ptr,handleClass,this.registeredClass);return ptr}function genericPointerToWireType(destructors,handle){var ptr;if(handle===null){if(this.isReference){throwBindingError("null is not a valid "+this.name)}if(this.isSmartPointer){ptr=this.rawConstructor();if(destructors!==null){destructors.push(this.rawDestructor,ptr)}return ptr}else{return 0}}if(!handle.$$){throwBindingError('Cannot pass "'+_embind_repr(handle)+'" as a '+this.name)}if(!handle.$$.ptr){throwBindingError("Cannot pass deleted object as a pointer of type "+this.name)}if(!this.isConst&&handle.$$.ptrType.isConst){throwBindingError("Cannot convert argument of type "+(handle.$$.smartPtrType?handle.$$.smartPtrType.name:handle.$$.ptrType.name)+" to parameter type "+this.name)}var handleClass=handle.$$.ptrType.registeredClass;ptr=upcastPointer(handle.$$.ptr,handleClass,this.registeredClass);if(this.isSmartPointer){if(undefined===handle.$$.smartPtr){throwBindingError("Passing raw pointer to smart pointer is illegal")}switch(this.sharingPolicy){case 0:if(handle.$$.smartPtrType===this){ptr=handle.$$.smartPtr}else{throwBindingError("Cannot convert argument of type "+(handle.$$.smartPtrType?handle.$$.smartPtrType.name:handle.$$.ptrType.name)+" to parameter type "+this.name)}break;case 1:ptr=handle.$$.smartPtr;break;case 2:if(handle.$$.smartPtrType===this){ptr=handle.$$.smartPtr}else{var clonedHandle=handle["clone"]();ptr=this.rawShare(ptr,__emval_register(function(){clonedHandle["delete"]()}));if(destructors!==null){destructors.push(this.rawDestructor,ptr)}}break;default:throwBindingError("Unsupporting sharing policy")}}return ptr}function nonConstNoSmartPtrRawPointerToWireType(destructors,handle){if(handle===null){if(this.isReference){throwBindingError("null is not a valid "+this.name)}return 0}if(!handle.$$){throwBindingError('Cannot pass "'+_embind_repr(handle)+'" as a '+this.name)}if(!handle.$$.ptr){throwBindingError("Cannot pass deleted object as a pointer of type "+this.name)}if(handle.$$.ptrType.isConst){throwBindingError("Cannot convert argument of type "+handle.$$.ptrType.name+" to parameter type "+this.name)}var handleClass=handle.$$.ptrType.registeredClass;var ptr=upcastPointer(handle.$$.ptr,handleClass,this.registeredClass);return ptr}function simpleReadValueFromPointer(pointer){return this["fromWireType"](HEAPU32[pointer>>2])}function RegisteredPointer_getPointee(ptr){if(this.rawGetPointee){ptr=this.rawGetPointee(ptr)}return ptr}function RegisteredPointer_destructor(ptr){if(this.rawDestructor){this.rawDestructor(ptr)}}function RegisteredPointer_deleteObject(handle){if(handle!==null){handle["delete"]()}}function downcastPointer(ptr,ptrClass,desiredClass){if(ptrClass===desiredClass){return ptr}if(undefined===desiredClass.baseClass){return null}var rv=downcastPointer(ptr,ptrClass,desiredClass.baseClass);if(rv===null){return null}return desiredClass.downcast(rv)}function getInheritedInstanceCount(){return Object.keys(registeredInstances).length}function getLiveInheritedInstances(){var rv=[];for(var k in registeredInstances){if(registeredInstances.hasOwnProperty(k)){rv.push(registeredInstances[k])}}return rv}function setDelayFunction(fn){delayFunction=fn;if(deletionQueue.length&&delayFunction){delayFunction(flushPendingDeletes)}}function init_embind(){Module["getInheritedInstanceCount"]=getInheritedInstanceCount;Module["getLiveInheritedInstances"]=getLiveInheritedInstances;Module["flushPendingDeletes"]=flushPendingDeletes;Module["setDelayFunction"]=setDelayFunction}var registeredInstances={};function getBasestPointer(class_,ptr){if(ptr===undefined){throwBindingError("ptr should not be undefined")}while(class_.baseClass){ptr=class_.upcast(ptr);class_=class_.baseClass}return ptr}function getInheritedInstance(class_,ptr){ptr=getBasestPointer(class_,ptr);return registeredInstances[ptr]}function makeClassHandle(prototype,record){if(!record.ptrType||!record.ptr){throwInternalError("makeClassHandle requires ptr and ptrType")}var hasSmartPtrType=!!record.smartPtrType;var hasSmartPtr=!!record.smartPtr;if(hasSmartPtrType!==hasSmartPtr){throwInternalError("Both smartPtrType and smartPtr must be specified")}record.count={value:1};return attachFinalizer(Object.create(prototype,{$$:{value:record}}))}function RegisteredPointer_fromWireType(ptr){var rawPointer=this.getPointee(ptr);if(!rawPointer){this.destructor(ptr);return null}var registeredInstance=getInheritedInstance(this.registeredClass,rawPointer);if(undefined!==registeredInstance){if(0===registeredInstance.$$.count.value){registeredInstance.$$.ptr=rawPointer;registeredInstance.$$.smartPtr=ptr;return registeredInstance["clone"]()}else{var rv=registeredInstance["clone"]();this.destructor(ptr);return rv}}function makeDefaultHandle(){if(this.isSmartPointer){return makeClassHandle(this.registeredClass.instancePrototype,{ptrType:this.pointeeType,ptr:rawPointer,smartPtrType:this,smartPtr:ptr})}else{return makeClassHandle(this.registeredClass.instancePrototype,{ptrType:this,ptr:ptr})}}var actualType=this.registeredClass.getActualType(rawPointer);var registeredPointerRecord=registeredPointers[actualType];if(!registeredPointerRecord){return makeDefaultHandle.call(this)}var toType;if(this.isConst){toType=registeredPointerRecord.constPointerType}else{toType=registeredPointerRecord.pointerType}var dp=downcastPointer(rawPointer,this.registeredClass,toType.registeredClass);if(dp===null){return makeDefaultHandle.call(this)}if(this.isSmartPointer){return makeClassHandle(toType.registeredClass.instancePrototype,{ptrType:toType,ptr:dp,smartPtrType:this,smartPtr:ptr})}else{return makeClassHandle(toType.registeredClass.instancePrototype,{ptrType:toType,ptr:dp})}}function init_RegisteredPointer(){RegisteredPointer.prototype.getPointee=RegisteredPointer_getPointee;RegisteredPointer.prototype.destructor=RegisteredPointer_destructor;RegisteredPointer.prototype["argPackAdvance"]=8;RegisteredPointer.prototype["readValueFromPointer"]=simpleReadValueFromPointer;RegisteredPointer.prototype["deleteObject"]=RegisteredPointer_deleteObject;RegisteredPointer.prototype["fromWireType"]=RegisteredPointer_fromWireType}function RegisteredPointer(name,registeredClass,isReference,isConst,isSmartPointer,pointeeType,sharingPolicy,rawGetPointee,rawConstructor,rawShare,rawDestructor){this.name=name;this.registeredClass=registeredClass;this.isReference=isReference;this.isConst=isConst;this.isSmartPointer=isSmartPointer;this.pointeeType=pointeeType;this.sharingPolicy=sharingPolicy;this.rawGetPointee=rawGetPointee;this.rawConstructor=rawConstructor;this.rawShare=rawShare;this.rawDestructor=rawDestructor;if(!isSmartPointer&®isteredClass.baseClass===undefined){if(isConst){this["toWireType"]=constNoSmartPtrRawPointerToWireType;this.destructorFunction=null}else{this["toWireType"]=nonConstNoSmartPtrRawPointerToWireType;this.destructorFunction=null}}else{this["toWireType"]=genericPointerToWireType}}function replacePublicSymbol(name,value,numArguments){if(!Module.hasOwnProperty(name)){throwInternalError("Replacing nonexistant public symbol")}if(undefined!==Module[name].overloadTable&&undefined!==numArguments){Module[name].overloadTable[numArguments]=value}else{Module[name]=value;Module[name].argCount=numArguments}}function embind__requireFunction(signature,rawFunction){signature=readLatin1String(signature);function makeDynCaller(dynCall){var args=[];for(var i=1;i>2)+i])}return array}function runDestructors(destructors){while(destructors.length){var ptr=destructors.pop();var del=destructors.pop();del(ptr)}}function __embind_register_class_constructor(rawClassType,argCount,rawArgTypesAddr,invokerSignature,invoker,rawConstructor){assert(argCount>0);var rawArgTypes=heap32VectorToArray(argCount,rawArgTypesAddr);invoker=embind__requireFunction(invokerSignature,invoker);var args=[rawConstructor];var destructors=[];whenDependentTypesAreResolved([],[rawClassType],function(classType){classType=classType[0];var humanName="constructor "+classType.name;if(undefined===classType.registeredClass.constructor_body){classType.registeredClass.constructor_body=[]}if(undefined!==classType.registeredClass.constructor_body[argCount-1]){throw new BindingError("Cannot register multiple constructors with identical number of parameters ("+(argCount-1)+") for class '"+classType.name+"'! Overload resolution is currently only performed using the parameter count, not actual type info!")}classType.registeredClass.constructor_body[argCount-1]=function unboundTypeHandler(){throwUnboundTypeError("Cannot construct "+classType.name+" due to unbound types",rawArgTypes)};whenDependentTypesAreResolved([],rawArgTypes,function(argTypes){classType.registeredClass.constructor_body[argCount-1]=function constructor_body(){if(arguments.length!==argCount-1){throwBindingError(humanName+" called with "+arguments.length+" arguments, expected "+(argCount-1))}destructors.length=0;args.length=argCount;for(var i=1;i0?", ":"")+argsListWired}invokerFnBody+=(returns?"var rv = ":"")+"invoker(fn"+(argsListWired.length>0?", ":"")+argsListWired+");\n";if(needsDestructorStack){invokerFnBody+="runDestructors(destructors);\n"}else{for(var i=isClassMethodFunc?1:2;i4&&0===--emval_handle_array[handle].refcount){emval_handle_array[handle]=undefined;emval_free_list.push(handle)}}function count_emval_handles(){var count=0;for(var i=5;i>2])};case 3:return function(pointer){return this["fromWireType"](HEAPF64[pointer>>3])};default:throw new TypeError("Unknown float type: "+name)}}function __embind_register_float(rawType,name,size){var shift=getShiftFromSize(size);name=readLatin1String(name);registerType(rawType,{name:name,"fromWireType":function(value){return value},"toWireType":function(destructors,value){if(typeof value!=="number"&&typeof value!=="boolean"){throw new TypeError('Cannot convert "'+_embind_repr(value)+'" to '+this.name)}return value},"argPackAdvance":8,"readValueFromPointer":floatReadValueFromPointer(name,shift),destructorFunction:null})}function integerReadValueFromPointer(name,shift,signed){switch(shift){case 0:return signed?function readS8FromPointer(pointer){return HEAP8[pointer]}:function readU8FromPointer(pointer){return HEAPU8[pointer]};case 1:return signed?function readS16FromPointer(pointer){return HEAP16[pointer>>1]}:function readU16FromPointer(pointer){return HEAPU16[pointer>>1]};case 2:return signed?function readS32FromPointer(pointer){return HEAP32[pointer>>2]}:function readU32FromPointer(pointer){return HEAPU32[pointer>>2]};default:throw new TypeError("Unknown integer type: "+name)}}function __embind_register_integer(primitiveType,name,size,minRange,maxRange){name=readLatin1String(name);if(maxRange===-1){maxRange=4294967295}var shift=getShiftFromSize(size);var fromWireType=function(value){return value};if(minRange===0){var bitshift=32-8*size;fromWireType=function(value){return value<>>bitshift}}var isUnsignedType=name.indexOf("unsigned")!=-1;registerType(primitiveType,{name:name,"fromWireType":fromWireType,"toWireType":function(destructors,value){if(typeof value!=="number"&&typeof value!=="boolean"){throw new TypeError('Cannot convert "'+_embind_repr(value)+'" to '+this.name)}if(valuemaxRange){throw new TypeError('Passing a number "'+_embind_repr(value)+'" from JS side to C/C++ side to an argument of type "'+name+'", which is outside the valid range ['+minRange+", "+maxRange+"]!")}return isUnsignedType?value>>>0:value|0},"argPackAdvance":8,"readValueFromPointer":integerReadValueFromPointer(name,shift,minRange!==0),destructorFunction:null})}function __embind_register_memory_view(rawType,dataTypeIndex,name){var typeMapping=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array];var TA=typeMapping[dataTypeIndex];function decodeMemoryView(handle){handle=handle>>2;var heap=HEAPU32;var size=heap[handle];var data=heap[handle+1];return new TA(heap["buffer"],data,size)}name=readLatin1String(name);registerType(rawType,{name:name,"fromWireType":decodeMemoryView,"argPackAdvance":8,"readValueFromPointer":decodeMemoryView},{ignoreDuplicateRegistrations:true})}function __embind_register_std_string(rawType,name){name=readLatin1String(name);var stdStringIsUTF8=name==="std::string";registerType(rawType,{name:name,"fromWireType":function(value){var length=HEAPU32[value>>2];var str;if(stdStringIsUTF8){var endChar=HEAPU8[value+4+length];var endCharSwap=0;if(endChar!=0){endCharSwap=endChar;HEAPU8[value+4+length]=0}var decodeStartPtr=value+4;for(var i=0;i<=length;++i){var currentBytePtr=value+4+i;if(HEAPU8[currentBytePtr]==0){var stringSegment=UTF8ToString(decodeStartPtr);if(str===undefined)str=stringSegment;else{str+=String.fromCharCode(0);str+=stringSegment}decodeStartPtr=currentBytePtr+1}}if(endCharSwap!=0)HEAPU8[value+4+length]=endCharSwap}else{var a=new Array(length);for(var i=0;i>2]=length;if(stdStringIsUTF8&&valueIsOfTypeString){stringToUTF8(value,ptr+4,length+1)}else{if(valueIsOfTypeString){for(var i=0;i255){_free(ptr);throwBindingError("String has UTF-16 code units that do not fit in 8 bits")}HEAPU8[ptr+4+i]=charCode}}else{for(var i=0;i>2];var a=new Array(length);var start=value+4>>shift;for(var i=0;i>2]=length;var start=ptr+4>>shift;for(var i=0;i4){emval_handle_array[handle].refcount+=1}}function requireRegisteredType(rawType,humanName){var impl=registeredTypes[rawType];if(undefined===impl){throwBindingError(humanName+" has unknown type "+getTypeName(rawType))}return impl}function __emval_take_value(type,argv){type=requireRegisteredType(type,"_emval_take_value");var v=type["readValueFromPointer"](argv);return __emval_register(v)}function _abort(){abort()}function _emscripten_get_heap_size(){return HEAP8.length}function abortOnCannotGrowMemory(requestedSize){abort("OOM")}function _emscripten_resize_heap(requestedSize){abortOnCannotGrowMemory(requestedSize)}function _emscripten_memcpy_big(dest,src,num){HEAPU8.set(HEAPU8.subarray(src,src+num),dest)}embind_init_charCodes();BindingError=Module["BindingError"]=extendError(Error,"BindingError");InternalError=Module["InternalError"]=extendError(Error,"InternalError");init_ClassHandle();init_RegisteredPointer();init_embind();UnboundTypeError=Module["UnboundTypeError"]=extendError(Error,"UnboundTypeError");init_emval();var ASSERTIONS=false;var asmGlobalArg={};var asmLibraryArg={"ClassHandle":ClassHandle,"ClassHandle_clone":ClassHandle_clone,"ClassHandle_delete":ClassHandle_delete,"ClassHandle_deleteLater":ClassHandle_deleteLater,"ClassHandle_isAliasOf":ClassHandle_isAliasOf,"ClassHandle_isDeleted":ClassHandle_isDeleted,"RegisteredClass":RegisteredClass,"RegisteredPointer":RegisteredPointer,"RegisteredPointer_deleteObject":RegisteredPointer_deleteObject,"RegisteredPointer_destructor":RegisteredPointer_destructor,"RegisteredPointer_fromWireType":RegisteredPointer_fromWireType,"RegisteredPointer_getPointee":RegisteredPointer_getPointee,"__embind_register_bool":__embind_register_bool,"__embind_register_class":__embind_register_class,"__embind_register_class_constructor":__embind_register_class_constructor,"__embind_register_class_function":__embind_register_class_function,"__embind_register_emval":__embind_register_emval,"__embind_register_float":__embind_register_float,"__embind_register_integer":__embind_register_integer,"__embind_register_memory_view":__embind_register_memory_view,"__embind_register_std_string":__embind_register_std_string,"__embind_register_std_wstring":__embind_register_std_wstring,"__embind_register_void":__embind_register_void,"__emval_decref":__emval_decref,"__emval_incref":__emval_incref,"__emval_register":__emval_register,"__emval_take_value":__emval_take_value,"__memory_base":1024,"__table_base":0,"_abort":_abort,"_embind_repr":_embind_repr,"_emscripten_get_heap_size":_emscripten_get_heap_size,"_emscripten_memcpy_big":_emscripten_memcpy_big,"_emscripten_resize_heap":_emscripten_resize_heap,"abort":abort,"abortOnCannotGrowMemory":abortOnCannotGrowMemory,"attachFinalizer":attachFinalizer,"constNoSmartPtrRawPointerToWireType":constNoSmartPtrRawPointerToWireType,"count_emval_handles":count_emval_handles,"craftInvokerFunction":craftInvokerFunction,"createNamedFunction":createNamedFunction,"demangle":demangle,"demangleAll":demangleAll,"detachFinalizer":detachFinalizer,"downcastPointer":downcastPointer,"embind__requireFunction":embind__requireFunction,"embind_init_charCodes":embind_init_charCodes,"ensureOverloadTable":ensureOverloadTable,"exposePublicSymbol":exposePublicSymbol,"extendError":extendError,"floatReadValueFromPointer":floatReadValueFromPointer,"flushPendingDeletes":flushPendingDeletes,"genericPointerToWireType":genericPointerToWireType,"getBasestPointer":getBasestPointer,"getInheritedInstance":getInheritedInstance,"getInheritedInstanceCount":getInheritedInstanceCount,"getLiveInheritedInstances":getLiveInheritedInstances,"getShiftFromSize":getShiftFromSize,"getTempRet0":getTempRet0,"getTypeName":getTypeName,"get_first_emval":get_first_emval,"heap32VectorToArray":heap32VectorToArray,"init_ClassHandle":init_ClassHandle,"init_RegisteredPointer":init_RegisteredPointer,"init_embind":init_embind,"init_emval":init_emval,"integerReadValueFromPointer":integerReadValueFromPointer,"jsStackTrace":jsStackTrace,"makeClassHandle":makeClassHandle,"makeLegalFunctionName":makeLegalFunctionName,"memory":wasmMemory,"new_":new_,"nonConstNoSmartPtrRawPointerToWireType":nonConstNoSmartPtrRawPointerToWireType,"readLatin1String":readLatin1String,"registerType":registerType,"releaseClassHandle":releaseClassHandle,"replacePublicSymbol":replacePublicSymbol,"requireRegisteredType":requireRegisteredType,"runDestructor":runDestructor,"runDestructors":runDestructors,"setDelayFunction":setDelayFunction,"setTempRet0":setTempRet0,"shallowCopyInternalPointer":shallowCopyInternalPointer,"simpleReadValueFromPointer":simpleReadValueFromPointer,"stackTrace":stackTrace,"table":wasmTable,"tempDoublePtr":tempDoublePtr,"throwBindingError":throwBindingError,"throwInstanceAlreadyDeleted":throwInstanceAlreadyDeleted,"throwInternalError":throwInternalError,"throwUnboundTypeError":throwUnboundTypeError,"upcastPointer":upcastPointer,"whenDependentTypesAreResolved":whenDependentTypesAreResolved};var asm=Module["asm"](asmGlobalArg,asmLibraryArg,buffer);Module["asm"]=asm;var ___embind_register_native_and_builtin_types=Module["___embind_register_native_and_builtin_types"]=function(){return Module["asm"]["___embind_register_native_and_builtin_types"].apply(null,arguments)};var ___errno_location=Module["___errno_location"]=function(){return Module["asm"]["___errno_location"].apply(null,arguments)};var ___getTypeName=Module["___getTypeName"]=function(){return Module["asm"]["___getTypeName"].apply(null,arguments)};var _emscripten_get_sbrk_ptr=Module["_emscripten_get_sbrk_ptr"]=function(){return Module["asm"]["_emscripten_get_sbrk_ptr"].apply(null,arguments)};var _free=Module["_free"]=function(){return Module["asm"]["_free"].apply(null,arguments)};var _jsadd=Module["_jsadd"]=function(){return Module["asm"]["_jsadd"].apply(null,arguments)};var _malloc=Module["_malloc"]=function(){return Module["asm"]["_malloc"].apply(null,arguments)};var _memcpy=Module["_memcpy"]=function(){return Module["asm"]["_memcpy"].apply(null,arguments)};var _memset=Module["_memset"]=function(){return Module["asm"]["_memset"].apply(null,arguments)};var establishStackSpace=Module["establishStackSpace"]=function(){return Module["asm"]["establishStackSpace"].apply(null,arguments)};var globalCtors=Module["globalCtors"]=function(){return Module["asm"]["globalCtors"].apply(null,arguments)};var stackAlloc=Module["stackAlloc"]=function(){return Module["asm"]["stackAlloc"].apply(null,arguments)};var stackRestore=Module["stackRestore"]=function(){return Module["asm"]["stackRestore"].apply(null,arguments)};var stackSave=Module["stackSave"]=function(){return Module["asm"]["stackSave"].apply(null,arguments)};var dynCall_ii=Module["dynCall_ii"]=function(){return Module["asm"]["dynCall_ii"].apply(null,arguments)};var dynCall_iii=Module["dynCall_iii"]=function(){return Module["asm"]["dynCall_iii"].apply(null,arguments)};var dynCall_iiii=Module["dynCall_iiii"]=function(){return Module["asm"]["dynCall_iiii"].apply(null,arguments)};var dynCall_v=Module["dynCall_v"]=function(){return Module["asm"]["dynCall_v"].apply(null,arguments)};var dynCall_vi=Module["dynCall_vi"]=function(){return Module["asm"]["dynCall_vi"].apply(null,arguments)};var dynCall_vii=Module["dynCall_vii"]=function(){return Module["asm"]["dynCall_vii"].apply(null,arguments)};var dynCall_viiii=Module["dynCall_viiii"]=function(){return Module["asm"]["dynCall_viiii"].apply(null,arguments)};var dynCall_viiiii=Module["dynCall_viiiii"]=function(){return Module["asm"]["dynCall_viiiii"].apply(null,arguments)};var dynCall_viiiiii=Module["dynCall_viiiiii"]=function(){return Module["asm"]["dynCall_viiiiii"].apply(null,arguments)};Module["asm"]=asm;Module["ccall"]=ccall;var calledRun;function ExitStatus(status){this.name="ExitStatus";this.message="Program terminated with exit("+status+")";this.status=status}dependenciesFulfilled=function runCaller(){if(!calledRun)run();if(!calledRun)dependenciesFulfilled=runCaller};function run(args){args=args||arguments_;if(runDependencies>0){return}preRun();if(runDependencies>0)return;function doRun(){if(calledRun)return;calledRun=true;if(ABORT)return;initRuntime();preMain();if(Module["onRuntimeInitialized"])Module["onRuntimeInitialized"]();postRun()}if(Module["setStatus"]){Module["setStatus"]("Running...");setTimeout(function(){setTimeout(function(){Module["setStatus"]("")},1);doRun()},1)}else{doRun()}}Module["run"]=run;if(Module["preInit"]){if(typeof Module["preInit"]=="function")Module["preInit"]=[Module["preInit"]];while(Module["preInit"].length>0){Module["preInit"].pop()()}}noExitRuntime=true;run(); 2 | -------------------------------------------------------------------------------- /dist/modern_cpp_lib_js.wasm: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chafey/modern-cpp-lib-js/494f7a1fa8e256a0226588be5b24beabad8877a7/dist/modern_cpp_lib_js.wasm -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "@chafey/modern-cpp-lib", 3 | "version": "1.0.0", 4 | "description": "JS/WASM build of the modern-cpp-lib example", 5 | "main": "dist/modern_cpp_lib_js.js", 6 | "directories": { 7 | "test": "test" 8 | }, 9 | "scripts": { 10 | "build": "./build.sh" 11 | }, 12 | "repository": { 13 | "type": "git", 14 | "url": "git+https://github.com/chafey/modern-cpp-lib-js.git" 15 | }, 16 | "author": "Chris Hafey", 17 | "license": "MIT", 18 | "bugs": { 19 | "url": "https://github.com/chafey/modern-cpp-lib-js/issues" 20 | }, 21 | "homepage": "https://github.com/chafey/modern-cpp-lib-js#readme" 22 | } 23 | -------------------------------------------------------------------------------- /src/CMakeLists.txt: -------------------------------------------------------------------------------- 1 | 2 | add_executable(modern_cpp_lib_js jslib.cpp) 3 | 4 | target_link_libraries(modern_cpp_lib_js PRIVATE modern_cpp_lib) 5 | 6 | #C++ 11 7 | target_compile_features(modern_cpp_lib_js PUBLIC cxx_std_11) 8 | set_target_properties(modern_cpp_lib_js PROPERTIES CXX_EXTENSIONS OFF) 9 | 10 | if (CMAKE_BUILD_TYPE STREQUAL Debug) 11 | SET(linkFlags "-g4 -s NO_EXIT_RUNTIME=1") 12 | else() # Either MinSizeRel, RelWithDebInfo or Release, all which run with optimizations enabled. 13 | SET(linkFlags "-O3 -s NO_EXIT_RUNTIME=1 -s DISABLE_EXCEPTION_CATCHING=1") 14 | endif() 15 | 16 | set(CMAKE_CXX_FLAGS_RELEASE "-O3 -fno-exceptions") 17 | 18 | set_target_properties( 19 | modern_cpp_lib_js 20 | PROPERTIES 21 | LINK_FLAGS "\ 22 | --bind \ 23 | -s EXPORTED_FUNCTIONS=[] \ 24 | -s EXTRA_EXPORTED_RUNTIME_METHODS=[ccall] \ 25 | ") 26 | -------------------------------------------------------------------------------- /src/jslib.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | #include 5 | #include 6 | 7 | using namespace emscripten; 8 | 9 | class RleDecode { 10 | public: 11 | RleDecode(size_t sourceSize, size_t destinationSize) { 12 | source.resize(sourceSize); 13 | destination.resize(destinationSize); 14 | } 15 | 16 | val getSourceBytes() { 17 | return val(typed_memory_view(source.size(), source.data())); 18 | } 19 | 20 | val getDestinationBytes() { 21 | return val(typed_memory_view(destination.size(), destination.data())); 22 | } 23 | 24 | void decode() { 25 | rleDecode(source, destination); 26 | } 27 | 28 | private: 29 | std::vector source; 30 | std::vector destination; 31 | }; 32 | 33 | EMSCRIPTEN_BINDINGS(RleDecode) { 34 | class_("RleDecode") 35 | .constructor() 36 | .function("getSourceBytes", &RleDecode::getSourceBytes) 37 | .function("getDestinationBytes", &RleDecode::getDestinationBytes) 38 | .function("decode", &RleDecode::decode) 39 | ; 40 | } 41 | 42 | extern "C" { 43 | EMSCRIPTEN_KEEPALIVE int jsadd(int a, int b) 44 | { 45 | return add(a,b); 46 | } 47 | } 48 | -------------------------------------------------------------------------------- /src/pre.js: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chafey/modern-cpp-lib-js/494f7a1fa8e256a0226588be5b24beabad8877a7/src/pre.js -------------------------------------------------------------------------------- /test/browser/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
11 |
12 |

Modern CMake with Emscripten Example

13 | 
14 |           Module._jsadd(5,10) = 
15 |
16 |
17 | RLE Decode Time: 18 |
19 | 20 | 21 | 50 | 51 | -------------------------------------------------------------------------------- /test/node/index.js: -------------------------------------------------------------------------------- 1 | let modernLibrary = require('../../dist/modern_cpp_lib_js.js'); 2 | const fs = require('fs') 3 | 4 | modernLibrary.onRuntimeInitialized = async _ => { 5 | let result = modernLibrary._jsadd(1,1); 6 | console.log('_jsadd(1,1) = ', result) 7 | result = modernLibrary.ccall( 8 | 'jsadd', 9 | 'number', 10 | ['number', 'numnber'], 11 | [10, 5]) 12 | 13 | console.log('ccall(\'jsadd\', \'number\', [\'number\', \'number\', [10,15]) = 10 + 5 = ', result); 14 | 15 | // embind 16 | var instance = new modernLibrary.RleDecode(300000, 512*512*2); 17 | const sourceBytes = instance.getSourceBytes(); 18 | var data = fs.readFileSync('../../extern/modern-cpp-lib/tests/fixtures/ct.rle'); 19 | sourceBytes.set(data); 20 | 21 | const begin = process.hrtime(); 22 | for(var i=0; i < 1000; i++) { 23 | instance.decode(); 24 | } 25 | const duration = process.hrtime(begin);//.reduce((sec, nano) => sec * 1e9 + nano) 26 | const durationInMs = duration[0] + duration[1] / 1000000000; 27 | console.log("RLE Decode took " + (durationInMs) + " seconds"); 28 | 29 | var decoded = instance.getDestinationBytes(); 30 | console.log('decoded length = ', decoded.length); 31 | //console.log(decoded); 32 | instance.delete(); 33 | } 34 | -------------------------------------------------------------------------------- /test/node/package-lock.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "node", 3 | "version": "1.0.0", 4 | "lockfileVersion": 1 5 | } 6 | -------------------------------------------------------------------------------- /test/node/package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "node", 3 | "version": "1.0.0", 4 | "description": "", 5 | "main": "index.js", 6 | "scripts": { 7 | "test": "node index.js" 8 | }, 9 | "keywords": [], 10 | "author": "", 11 | "license": "ISC" 12 | } 13 | --------------------------------------------------------------------------------