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Code Issues Releases Wiki Activity

1. Unified uncaughtException exception processing

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2. updated promise, so uncaughtRejection emits an uncaughtException
This commit is contained in:
Bryan Roe
2020-02-06 18:57:18 -08:00
parent 937ae3b5d2
commit 5f1656b0ba
3 changed files with 36 additions and 17 deletions
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38
microscript/ILibDuktape_Helpers.c
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@@ -37,6 +37,8 @@ struct sockaddr_in6 duktape_internalAddress;
#define ILibDuktape_Process_ExitCode "\xFF_ExitCode"
#define ILibDuktape_Memory_AllocTable "\xFF_MemoryAllocTable"
#define ILibDuktape_ObjectStashKey "\xFF_ObjectStashKey"
#define ILibDuktape_UncaughtException_NativeHandler "\xFF_UncaughtNativeHandler"
#define ILibDuktape_UncaughtException_NativeUser "\xFF_UncaughtNativeUser"
int ILibDuktape_GetReferenceCount(duk_context *ctx, duk_idx_t i)
{
@@ -442,13 +444,36 @@ void *ILibDuktape_GetProcessObject(duk_context *ctx)
duk_pop(ctx); // ...
return retVal;
}
duk_ret_t ILibDuktape_SetNativeUncaughtExceptionSink(duk_context *ctx)
{
duk_push_current_function(ctx);
ILibDuktape_NativeUncaughtExceptionHandler handler = (ILibDuktape_NativeUncaughtExceptionHandler)Duktape_GetPointerProperty(ctx, -1, ILibDuktape_UncaughtException_NativeHandler);
void *user = Duktape_GetPointerProperty(ctx, -1, ILibDuktape_UncaughtException_NativeUser);
if (handler != NULL)
{
handler(ctx, (char*)duk_safe_to_string(ctx, 0), user);
}
return(0);
}
void ILibDuktape_SetNativeUncaughtExceptionHandler(duk_context * ctx, ILibDuktape_NativeUncaughtExceptionHandler handler, void * user)
{
void *j = ILibDuktape_GetProcessObject(ctx);
if (j != NULL)
{
duk_push_heapptr(ctx, j); // [process]
duk_get_prop_string(ctx, -1, "on"); // [process][on]
duk_swap_top(ctx, -2); // [on][this]
duk_push_string(ctx, "uncaughtException"); // [on][this][exception]
duk_push_c_function(ctx, ILibDuktape_SetNativeUncaughtExceptionSink, DUK_VARARGS); // [on][this][exception][func]
duk_push_pointer(ctx, handler); // [on][this][exception][func][handler]
duk_put_prop_string(ctx, -2, ILibDuktape_UncaughtException_NativeHandler); // [on][this][exception][func]
duk_push_pointer(ctx, user);
duk_put_prop_string(ctx, -2, ILibDuktape_UncaughtException_NativeUser); // [on][this][exception][func]
duk_pcall_method(ctx, 2); duk_pop(ctx); // ...
// This is only used when we dump the core, so we can re-set these events
duk_push_heapptr(ctx, j); // [process]
duk_push_pointer(ctx, handler); // [process][handler]
duk_put_prop_string(ctx, -2, ILibDuktape_NativeUncaughtExceptionPtr); // [process]
@@ -489,19 +514,6 @@ void ILibDuktape_Process_UncaughtExceptionEx(duk_context *ctx, char *format, ...
len += sprintf_s(dest + len, sizeof(dest) - len, " => %s", errmsg);
}
if (j != NULL)
{
duk_push_heapptr(ctx, j); // [process]
if (duk_has_prop_string(ctx, -1, ILibDuktape_NativeUncaughtExceptionPtr))
{
duk_get_prop_string(ctx, -1, ILibDuktape_NativeUncaughtExceptionPtr); // [process][ptr]
duk_get_prop_string(ctx, -2, ILibDuktape_NativeUncaughtExceptionUserPtr); // [process][ptr][user]
((ILibDuktape_NativeUncaughtExceptionHandler)duk_get_pointer(ctx, -2))(ctx, (char*)dest, duk_get_pointer(ctx, -1));
duk_pop_2(ctx); // [process]
}
duk_pop(ctx); // ...
}
if (emitter != NULL)
{
duk_push_heapptr(emitter->ctx, emitter->object); // [process]

4
microscript/ILibDuktape_Polyfills.c
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File diff suppressed because one or more lines are too long

11
modules/promise.js
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@@ -122,8 +122,15 @@ function Promise(promiseFunc)
this.then = function (resolved, rejected)
{
if (resolved) { this._internal.once('resolved', event_switcher(this, resolved).func); }
if (rejected) { this._internal.once('rejected', event_switcher(this, rejected).func); }
if (rejected)
{
this._internal.once('rejected', event_switcher(this, rejected).func);
}
else
{
this._internal.once('rejected', function (e) { process.emit('uncaughtException', 'promise.unhandledRejection: ' + e); });
}
var retVal = new Promise(function (r, j) { });
this._internal.once('resolved', retVal._internal.resolver);
this._internal.once('rejected', retVal._internal.rejector);