annotate vampipe.map @ 99:dfd107ef991f

Replace exceptions throughout the JSON-handling and adapter code with string-arg error handling. No longer need exception handling enabled in Emscripten (with its consequent runtime overhead - though we still need to check whether this error handling regime is actually faster).

{
	global: vampipeRequestJson; vampipeProcessRaw; vampipeFreeJson;
	local: *;
};