Proper error handling in add* and get* methods (#1570)

See #1479 (comment)

Also a one-line readme update, remove an obsolete compiler (mir2wasm) and add a new one (asterius).

Also improve warning and error reporting in binaryen.js - show a stack trace when relevant (instead of node.js process.exit), and avoid atexit warning spam in debug builds.

1 files changed, 4 insertions, 0 deletions

diff --git a/test/binaryen.js/fatal.js b/test/binaryen.js/fatal.js
new file mode 100644
index 000000000..5e8071daa
--- /dev/null
+++ b/test/binaryen.js/fatal.js
@@ -0,0 +1,4 @@
+var wasm = new Binaryen.Module()
+wasm.addFunctionType("vI", Binaryen.i32, []);
+// It will cause a fatal error to try to add the same name a second time
+wasm.addFunctionType("vI", Binaryen.i32, []);