This change adjusts the way that trust is threaded through bytecode
and the code inspector. In Racket v6.x, reading bytecode would fail if
the code inspector is non-original and if the bytecode contains a
reference to an unsafe operation. Now, reading bytecode doesn't fail
for that reason, but all bytecode is marked as non-runnable (even
without references to unsafe operations) when loaded under a
non-original code inspector. A `read` operation by itself remains as
safe as ever.
This commit also disables the bytecode validator. For now, the
validate can be re-enabled with `PLT_VALIDATE_LOAD`.
Make `s-exp->fasl` generate an encoding that can be parsed by any
future version of `fasl->s-exp`. The new format does not rely on the
runtime system's bytecode writer and reader.
Some built-in bytes-converter combinations that were not
supposed to require custodian registration were neveretheless
registered, which created a small leak for some programs.
Make the module path index for bindings in a `module->namespace` be a
"self" MPI (with #f for path and base), instead of the MPI associated
with bindings as view from the outside of the module instance. That
makes interactive evalaution in the namespace more closely approximate
expansion within the original module.
Example use: ASL detects a "self" MPI to determine when it should
allow assignment to module-defined variables in the REPL.
This change means that if a macro transformer calls expand (not
local-expand, but top-level expand), the macro debugger won't
receive the inner expand's events. Previously, the macro debugger
tried to parse and then discard the inner expand, but that was
brittle and complicated the grammar.
The old reader used an internal option to short-circuit special-value
reading when a special value acts as a terminating "character". Expose
that shortcut by allowing 'special as an argument to
`peek-{char,byte}-or-special`, and update the reader to use it.
This commit merges changes that were developed in the "racket7" repo.
See that repo (which is no longer modified) for a more fine-grained
change history.
The commit includes experimental support for running Racket on Chez
Scheme, but that "CS" variant is not built by default.
Add a `_bytes` variant type that will work more consistently with
Racket-on-Chez, where the representation of a byte string does not
include an implicit nul terminator.
Faster for the case that an impersonator has a small number of
impersonator properties. To enable hand-coded search, a small number
of properties are now kept in a vector instead of a hash tree.
Commit 89512eda had accientally disabled the JIT's fast
path for structure-type property predicates and selectors.
Re-enable it, but but repair a problem with the way that
impersonator-property operations are handled by the same
code.
