Invalid JS code generated for struct [[cheerp::jsexport]], but not for class

[yeputons]

Example code:

struct [[cheerp::jsexport]] Foo {
public:
    int a;
    Foo(int x) : a(x) {}
};

void webMain() {
    new Foo(10);
}

With "C:\cheerp\bin\clang++.exe" -target cheerp -cheerp-pretty-code -O0 a.cpp it's compiled to:

"use strict";
/*Compiled using Cheerp (R) by Leaning Technologies Ltd*/
var __imul=Math.imul;
var __fround=Math.fround;
var oSlot=0;var nullArray=[null];var nullObj={d:nullArray,o:0};
function __ZN3FooC1Ei(Lthis,Lx){
	Lthis.i0=Lx;
}
function __Z7webMainv(){
	var tmp0=null;
	tmp0=new ._Z3Foo(undefined);
	__ZN3FooC1Ei(tmp0,10);
}
function _memcpy(Ldst0,Mdst0,Lsrc0,Msrc0,Llen0){
	// omitted for the GitHub issue    
}
__Z7webMainv();

Note that there is syntax error:

.../a.out:11
	tmp0=new ._Z3Foo(undefined);
	          ^^^^^^
SyntaxError: Unexpected identifier

However, if I just change struct to class, a valid JS is produced.

My cheerp version is:

Cheerp 2.0 clang version 3.7.0 (https://github.com/leaningtech/cheerp-clang.git 70472c979d8cc9e1deafd9da94d6f54c7661b31c) (https://github.com/leaningtech/cheerp-llvm.git 7d4a8f11e29d6df426ba449e4a9aa20f897be08e) (based on LLVM 3.7.0svn)
Target: i686-pc-windows-gnu
Thread model: posix

[alexp-sssup]

Yes, we can reproduce this bug, we will let you know when it's fixed. In the mean time, as you found out, you can work around the problem by using a class with a public: before the first field. That's equivalent to a struct.

[alexp-sssup]

Problem fixed in current master