A test case to demonstrate the issue can be found at:
https://code.google.com/p/v8/issues/detail?id=4527
On Thursday, October 29, 2015 at 3:46:21 PM UTC-7, Jane Chen wrote:
>
> Testing profiling against v8 4.6.88.
>
> I have functions that are exposed through accessor callbacks. If a native
> function is set for multiple accessor properties, the last property shows
> up as the function name in the CpuProfileNode, regardless what name you set
> to the function returned by the accessor function. For example:
>
> global->SetAccessor(
> v8::String::NewFromUtf8(isolate, "print", v8::NewStringType::kNormal)
> .ToLocalChecked(),
> getFunction);
> global->SetAccessor(
> v8::String::NewFromUtf8(isolate, "read", v8::NewStringType::kNormal)
> .ToLocalChecked(),
> getFunction);
>
> Now "get read" is the function name in CpuProfileNode although print is
> called.
>
> Test script:
>
> function isPrime(num) {
> for (var count = 2; count < num; count++)
> if (num % count == 0) return false;
> return true;
> };
>
> var total = 0;
> for (var i = 2; i < 100000; i++) {
> if (isPrime(i)) {
> print(i);
> total++
> }
> };
> total;
>
> TotalHitCount:2233
>
> FunctionName:(root)
> LineNumber:0
> ColumnNumber:0
> HitCount:0
> FunctionName:(program)
> LineNumber:0
> ColumnNumber:0
> HitCount:7
> FunctionName:
> LineNumber:0
> ColumnNumber:0
> HitCount:13
> FunctionName:isPrime
> LineNumber:1
> ColumnNumber:17
> HitCount:8
> FunctionName:
> LineNumber:1
> ColumnNumber:1
> HitCount:2196
> FunctionName:get read
> LineNumber:0
> ColumnNumber:0
> HitCount:2
> FunctionName:(garbage collector)
> LineNumber:0
> ColumnNumber:0
> HitCount:7
>
>
> Given that an accessor callback takes a property name, it should allow one
> native function to handle multiple properties. Is this a bug, or am I
> doing something wrong?
>
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