feat: router-based wasm bundle splitting (#3683)

* feat: wasm-split base implementation * kinda sorta works with the cli * okay great it actually works * fix: cache busting for chunks * cleaned up version * it works with the router * wip: migrate to a faster linear solution using id remapping * add a good harness * it works completely on the docsite * the super tight build works too * make parallelizable * works on the docsite but not the harness * light cleanups, fix for both harness and docsite * make codegen smaller by extract some shared functions to prevent monos * chunking works, but tbd on tuning heuristics * extract used module * wip: cleaning up module * wip: much better understanding of how imports work * fix the call graph * working again... * wip: thinking about ifuncs * ifunc approach works * yes the ifunc approach works!! * it all works completely even with chunks * small cleanups * comments * actually locate all of the symbols * clean up final implementation * clean up tomls, revert some mono changs * clean up, add some more comments / docs in places * hoist more packages * clean up impl a bit more * clean cli * move harness to playwright * update playwright * extract codgen * add lazy to components * Add docs to split loader * clippy * typos * clippy, don't generate splits if not on wasm * whoops, const * Typos and docs * enable optimizations in ci * add optimizations to ci * add wasm-split router feature * parallel playwright? * fix no case check * disable pre-compress... think that might be the issue * better logging, no default pre-compress, caching of shared symbols * Fix: compressing assets * fix non-interactive logging for serve * cache playwright even on failure, use the cli with optimizations * fix prebuild * fix playwright webserver
2025-02-13 18:54:38 -08:00
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commit bdeedc13eb
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+/// A macro for deciding whether or not to split the wasm bundle.
+/// Used by the internal router-macro code. The contents here are considered to be semver exempt.
+///
+/// Only on wasm with the wasm-split feature will we prefer the `maybe_wasm_split` variant that emits
+/// the "lefthand" tokens. Otherwise, we emit the non-wasm_split tokens
+#[doc(hidden)]
+#[cfg(all(feature = "wasm-split", target_arch = "wasm32"))]
+#[macro_export]
+macro_rules! maybe_wasm_split {
+    (
+        if wasm_split {
+            $left:tt
+        } else {
+            $right:tt
+        }
+    ) => {
+        $left
+    };
+}
+
+/// A macro for deciding whether or not to split the wasm bundle.
+/// Used by the internal router-macro code. The contents here are considered to be semver exempt.
+///
+/// Only on wasm with the wasm-split feature will we prefer the `maybe_wasm_split` variant that emits
+/// the "lefthand" tokens. Otherwise, we emit the non-wasm_split tokens
+#[doc(hidden)]
+#[cfg(any(not(feature = "wasm-split"), not(target_arch = "wasm32")))]
+#[macro_export]
+macro_rules! maybe_wasm_split {
+    (
+        if wasm_split {
+            $left:tt
+        } else {
+            $right:tt
+        }
+    ) => {
+        $right
+    };
+}