computeLineColumnWithSourcemap: add remappedSourceURL out-param

Matches oven-sh/WebKit@8594cd29 + @e31c039f. Sourcemaps can map
to a different file, not just a different line/col — the callback
now writes the remapped URL back so the CPU profiler shows original
source paths (/src/foo.ts) instead of bundle paths
(/$bunfs/root/chunk.js).

cmake/tools/SetupWebKit.cmake

@@ -6,7 +6,7 @@ option(WEBKIT_LOCAL "If a local version of WebKit should be used instead of down
 option(WEBKIT_BUILD_TYPE "The build type for local WebKit (defaults to CMAKE_BUILD_TYPE)")
 
 if(NOT WEBKIT_VERSION)
-  set(WEBKIT_VERSION 4a6a32c32c11ffb9f5a94c310b10f50130bfe6de)
+  set(WEBKIT_VERSION autobuild-preview-pr-173-96bff1f5)
 endif()
 
 

src/bun.js/bindings/BunCPUProfiler.cpp

@@ -207,7 +207,7 @@ WTF::String stopCPUProfilerAndGetJSON(JSC::VM& vm)
 #if USE(BUN_JSC_ADDITIONS)
                         auto& fn = vm.computeLineColumnWithSourcemap();
                         if (fn) {
-                            fn(vm, provider, sourceMappedLineColumn);
+                            fn(vm, provider, sourceMappedLineColumn, url);
                         }
 #endif
                     }
@@ -670,7 +670,7 @@ void stopCPUProfiler(JSC::VM& vm, WTF::String* outJSON, WTF::String* outText)
 #if USE(BUN_JSC_ADDITIONS)
                             auto& fn = vm.computeLineColumnWithSourcemap();
                             if (fn)
-                                fn(vm, provider, sourceMappedLineColumn);
+                                fn(vm, provider, sourceMappedLineColumn, url);
 #endif
                         }
                         lineNumber = static_cast<int>(sourceMappedLineColumn.line);
@@ -841,7 +841,7 @@ void stopCPUProfiler(JSC::VM& vm, WTF::String* outJSON, WTF::String* outText)
 #if USE(BUN_JSC_ADDITIONS)
                             auto& fn = vm.computeLineColumnWithSourcemap();
                             if (fn)
-                                fn(vm, provider, sourceMappedLineColumn);
+                                fn(vm, provider, sourceMappedLineColumn, url);
 #endif
                         }
                         lineNumber = static_cast<int>(sourceMappedLineColumn.line);

src/bun.js/bindings/FormatStackTraceForJS.cpp

@@ -541,7 +541,7 @@ WTF::String computeErrorInfoWrapperToString(JSC::VM& vm, Vector<StackFrame>& sta
     return result;
 }
 
-void computeLineColumnWithSourcemap(JSC::VM& vm, JSC::SourceProvider* _Nonnull sourceProvider, JSC::LineColumn& lineColumn)
+void computeLineColumnWithSourcemap(JSC::VM& vm, JSC::SourceProvider* _Nonnull sourceProvider, JSC::LineColumn& lineColumn, WTF::String& remappedSourceURL)
 {
     auto sourceURL = sourceProvider->sourceURL();
     if (sourceURL.isEmpty()) {
@@ -561,6 +561,7 @@ void computeLineColumnWithSourcemap(JSC::VM& vm, JSC::SourceProvider* _Nonnull s
     if (frame.remapped) {
         lineColumn.line = frame.position.line().oneBasedInt();
         lineColumn.column = frame.position.column().oneBasedInt();
+        remappedSourceURL = frame.source_url.toWTFString();
     }
 }
 

src/bun.js/bindings/FormatStackTraceForJS.h

@@ -82,7 +82,7 @@ JSC_DECLARE_CUSTOM_SETTER(errorInstanceLazyStackCustomSetter);
 // Internal wrapper functions for JSC error info callbacks
 WTF::String computeErrorInfoWrapperToString(JSC::VM& vm, WTF::Vector<JSC::StackFrame>& stackTrace, unsigned int& line_in, unsigned int& column_in, WTF::String& sourceURL, void* bunErrorData);
 JSC::JSValue computeErrorInfoWrapperToJSValue(JSC::VM& vm, WTF::Vector<JSC::StackFrame>& stackTrace, unsigned int& line_in, unsigned int& column_in, WTF::String& sourceURL, JSC::JSObject* errorInstance, void* bunErrorData);
-void computeLineColumnWithSourcemap(JSC::VM& vm, JSC::SourceProvider* _Nonnull sourceProvider, JSC::LineColumn& lineColumn);
+void computeLineColumnWithSourcemap(JSC::VM& vm, JSC::SourceProvider* _Nonnull sourceProvider, JSC::LineColumn& lineColumn, WTF::String& remappedSourceURL);
 } // namespace Bun
 
 namespace Zig {