400055 - Patch for abc encode/decode

Status: RESOLVED FIXED

(Tamarin Graveyard :: Self-hosting compiler (ESC), defect)

Description

[Erik Tierney]

Attachment: Add abc encode/decode functionality

Adds basic functionality to encode a .abc file into a human readable .asm file and vice versa.  

There is a verbose and non-verbose mode for encoding.  If verbose is selected then most of the opcode operands are rendered in a longer more human readable format (e.g. strings are printed as strings, for names the entire qualified name is displayed).  In non-verbose mode all the operands are simply printed as indexes to the appropriate constant pool.  

The decoder can construct an abc from either format.  This makes it easier to edit the bytecode in verbose mode, as you could just change a string inline, instead of having to add an entry to the constant pool, calculate its index, etc.    

Also, modified the ABCBytestream class to provide read and write functionality for common abc constructs (like variable length inetgers).

Comment 1

[Jeff Dyer]

Comment on attachment 285133 [details] [diff] [review]
Add abc encode/decode functionality

nice!

Comment 2

[Lars T Hansen]

Code committed previously.