From df8b9536b1b351a5f8d3809405a89aa5df79aee9 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 29 Sep 2022 21:01:54 +0800
Subject: ...

---
 include/cru/common/platform/web/WebException.h  | 16 ++++++++++++++++
 include/cru/common/platform/web/WebFileStream.h | 21 +++++++++++++++++++++
 src/common/CMakeLists.txt                       | 10 ++++++++++
 src/common/platform/web/WebException.cpp        |  1 +
 src/common/platform/web/WebFileStream.cpp       |  1 +
 5 files changed, 49 insertions(+)
 create mode 100644 include/cru/common/platform/web/WebException.h
 create mode 100644 include/cru/common/platform/web/WebFileStream.h
 create mode 100644 src/common/platform/web/WebException.cpp
 create mode 100644 src/common/platform/web/WebFileStream.cpp

diff --git a/include/cru/common/platform/web/WebException.h b/include/cru/common/platform/web/WebException.h
new file mode 100644
index 00000000..d98b8943
--- /dev/null
+++ b/include/cru/common/platform/web/WebException.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#include "../../PreConfig.h"
+
+#ifdef CRU_PLATFORM_EMSCRIPTEN
+
+#include "../Exception.h"
+
+namespace cru::platform::web {
+class WebException : public PlatformException {
+ public:
+  using PlatformException::PlatformException;
+};
+}  // namespace cru::platform::web
+
+#endif
diff --git a/include/cru/common/platform/web/WebFileStream.h b/include/cru/common/platform/web/WebFileStream.h
new file mode 100644
index 00000000..66ee0903
--- /dev/null
+++ b/include/cru/common/platform/web/WebFileStream.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#include "../../PreConfig.h"
+
+#ifdef CRU_PLATFORM_EMSCRIPTEN
+
+#include "../../io/Stream.h"
+
+namespace cru::platform::web {
+/**
+ *  \remark Web just hates filesystems. But luckily emscripten just creates a
+ * good simulation of it. All we need to do is to use the C api and let
+ * emscripten take care of it for us.
+ */
+class WebFileStream : public io::Stream {
+ public:
+ // TODO: go on this!
+};
+}  // namespace cru::platform::web
+
+#endif
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 119bbbee..fb2dd471 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -38,6 +38,16 @@ if (APPLE)
 	)
 endif()
 
+if (EMSCRIPTEN)
+	target_compile_options(CruBase PUBLIC "-fwasm-exceptions")
+	target_link_options(CruBase PUBLIC "-fwasm-exceptions")
+
+	target_sources(CruBase PRIVATE
+		platform/web/WebException.cpp
+		platform/web/WebFileStream.cpp
+	)
+endif()
+
 if (WIN32)
 	target_sources(CruBase PRIVATE
 		platform/win/BridgeComStream.cpp
diff --git a/src/common/platform/web/WebException.cpp b/src/common/platform/web/WebException.cpp
new file mode 100644
index 00000000..30f9d1f0
--- /dev/null
+++ b/src/common/platform/web/WebException.cpp
@@ -0,0 +1 @@
+#include "cru/common/platform/web/WebException.h"
diff --git a/src/common/platform/web/WebFileStream.cpp b/src/common/platform/web/WebFileStream.cpp
new file mode 100644
index 00000000..2e45648e
--- /dev/null
+++ b/src/common/platform/web/WebFileStream.cpp
@@ -0,0 +1 @@
+#include "cru/common/platform/web/WebFileStream.h"
-- 
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