Accessing struct fields from emscripten

问题

Given the following code:

typedef struct {
  int foo;
} Bar;

Bar test() { Bar result = { .foo = 2 }; return result; }

and assuming that test() can be accessed from JavaScript, how would I convert the struct to a JavaScript object or otherwise be able to use the return value such that (in JavaScript) myJavascriptObject.foo == 2 will return true?

回答1:

One workaround is doing things as in java:

Bar createBar(int foo) {
  Bar result = { .foo = foo };
  return result;
}

int getFoo(Bar in) { return in.foo; }

Ugly, adds boilerplate, and requires more stuff be exported, but it works.

来源：https://stackoverflow.com/questions/25346367/accessing-struct-fields-from-emscripten