Re: [webkit-dev] Functionality of create_activation and tear_off_activation
Thanks Geoffrey. I was also interested in knowing, how these opcodes work with the scopechain, i.e., how many nodes does it push into the scopechain and how does it determine how many nodes to skip in get_scoped_var with multiple nested functions. Thanks and Regards, Abhishek From: Geoffrey Garen gga...@apple.com To: Abhishek Bichhawat abhishek_bichha...@yahoo.co.in Cc: webkit-dev@lists.webkit.org webkit-dev@lists.webkit.org Sent: Wednesday, 19 June 2013 6:53 PM Subject: Re: [webkit-dev] Functionality of create_activation and tear_off_activation op_create_activation creates a closure. op_tear_off_activation copies stack variables into the heap in order to persist the closure after the function returns. For more information about closures, see http://en.wikipedia.org/wiki/Closure_(computer_science). Geoff On Jun 18, 2013, at 12:38 PM, Abhishek Bichhawat abhishek_bichha...@yahoo.co.in wrote: Hi, We are working on a research project involving webkit. We are currently using Webkit-r122160 and trying to understand the functionality of two of the opcodes (op_create_activation and op_tear_off_activation), which are a part of the classical interpreter. Although, the classical interpreter has been phased out, we would appreciate if you could provide an insight into the functionality of the two opcodes. We are interested in the low-level details of the opcodes as to how they insert an object in the heap/register/scopechain and delete it from there. Thanks and Regards, Abhishek___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
Re: [webkit-dev] Functionality of create_activation and tear_off_activation
op_create_activation creates a closure. op_tear_off_activation copies stack variables into the heap in order to persist the closure after the function returns. For more information about closures, see http://en.wikipedia.org/wiki/Closure_(computer_science). Geoff On Jun 18, 2013, at 12:38 PM, Abhishek Bichhawat abhishek_bichha...@yahoo.co.in wrote: Hi, We are working on a research project involving webkit. We are currently using Webkit-r122160 and trying to understand the functionality of two of the opcodes (op_create_activation and op_tear_off_activation), which are a part of the classical interpreter. Although, the classical interpreter has been phased out, we would appreciate if you could provide an insight into the functionality of the two opcodes. We are interested in the low-level details of the opcodes as to how they insert an object in the heap/register/scopechain and delete it from there. Thanks and Regards, Abhishek ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
[webkit-dev] Functionality of create_activation and tear_off_activation
Hi, We are working on a research project involving webkit. We are currently using Webkit-r122160 and trying to understand the functionality of two of the opcodes (op_create_activation and op_tear_off_activation), which are a part of the classical interpreter. Although, the classical interpreter has been phased out, we would appreciate if you could provide an insight into the functionality of the two opcodes. We are interested in the low-level details of the opcodes as to how they insert an object in the heap/register/scopechain and delete it from there. Thanks and Regards, Abhishek___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
