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this switches biscuit.Variable type from uint32 to string, allowing more readable variables. (ie:
$0
can be replaced by$username
).The variable names are stored in the global symbols table, and their internal value (on datalog side is set to the integer index from the symbol table. for example, given a symbol table containing
["a", "b"]
, defining a fact containing a new variable$c
will insert the "c" string in the table (so it contains["a", "b", "c"]
) and set its internal value to2
(sosymbols2] = "c"
).Tests have been fixed, and samples updated from the specification repository (modified by biscuit-auth/biscuit@828f4c3)