V8 Snapshot Magic Number

[Ronald Fenner]

Could I request exposing the magic number used in snapshots as a function call or exporting the variable that holds it . It'd be nice to ask the library what's current number is as I've noticed it's a macro that aggregates a number of stuff together to build it.

I ask so that i can inspect the magic number to determine if the snapshot works with the included runtime before passing it to V8 to use.

Also I plan on using a custom snapshot file where the magic number at the start will just be 0 so as it identify it a non V8 one.

[Camillo Bruni]

Hi,

StartupData::IsValid should do the same without exposing the internal data.

We currently don't expose the version number in the StartupData, but you can get some of it via v8::V8::GetVersion().

cheers, Camillo

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Camillo Bruni |

Software Engineer, V8 |

Google Germany GmbH |

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