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This was introduced because Tokio would swallow panics. This is still
the case, but this panic handler causes more problems than it solves.
It requires people to know how to use debuggers to inspect stacktraces.
TODO:
- Fix Tokio to not swallow errors.
- Be vigilant in the intrim to not introduce broken tests due to this
unfortunate "feature" of tokio.
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This is more optimial and this fixes a problem where occasionally
remove_and_symlink will error with:
gen/compiler_bundle/main.js --sourcemapFile /Users/rld/src/deno --silent
Traceback (most recent call last):
File "../../tools/run_node.py", line 18, in <module>
util.remove_and_symlink(target_rel, "node_modules", True)
File "/Users/rld/src/deno/tools/util.py", line 103, in remove_and_symlink
symlink(target, name, target_is_dir)
File "/Users/rld/src/deno/tools/util.py", line 141, in symlink
os.symlink(target, name)
OSError: [Errno 17] File exists
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This bring it inline with terminology used in V8
See ResolveCallback in v8.h
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Continuation of the work done in c113df.
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In collaboration with @yushimatenjin
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- Don't crash when .mime file not exist in cache (#1291)
- Process source maps in Rust instead of JS (#1280)
- Use alternate TextEncoder/TextDecoder implementation (#1281)
- Upgrade flatbuffers to 80d148
- Fix memory leaks (#1265, #1275)
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- Improves speed and binary size significantly.
- Makes deno_last_exception() output a JSON structure.
- Isolate::execute and Isolate::event_loop now return
structured, mapped JSError objects on errors.
- Removes libdeno functions:
libdeno.setGlobalErrorHandler()
libdeno.setPromiseRejectHandler()
libdeno.setPromiseErrorExaminer()
In collaboration with Ryan Dahl.
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This is faster and smaller.
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`Isolate::from_void_ptr` is renamed to `from_raw_ptr`, to keep
consistency with std libs.
It is changed to `unsafe` function, because it can't guarantee that the
input is valid. This guarantee should be provided by the caller.
Its return type is changed to `&Isolate`, because `&mut Isolate` type
requires that no other aliases co-exist in this period of time, this
does not seem true. So I changed most of the methods to accept shared
reference `&Isolate`. It is easier to reason about the correctness of
`unsafe` blocks. As long as these shared references are in the same
thread, these `unsafe` codes are probably correct.
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In preperation for adding other callbacks to libdeno.
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The main purpose of this PR is to remove the `'static` lifetime bound in
type OpCreator =
fn(state: &Arc<IsolateState>, base: &msg::Base, data: &'static mut [u8])
-> Box<Op>;
The reason is simple: it is plain wrong, the `data` is actually not `'static`. It is created when the message is sent from C side, and will be recycled when the message is responded. It violates the definition of `'static` lifetime.
If someone save this pointer somewhere else, and reuse it later again, uninitialized memory could be accessed. This kind of memory unsafety does not happen yet because the logic is carefully organized in this project. Lifetime constraints are maintained by code convention. It could be more robust if we can express this constraint by Rust's type system.
Basic idea: tie buffer's lifetime to an object's lifetime, a.k.a, RAII. The type `deno_buf` is pretty suitable for this job.
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For now it only runs test_cc and has to filter out a test which leaks.
However we will expand this over time until the entire build is LSAN clean.
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These were discovered using the LSAN.
http://dev.chromium.org/developers/testing/leaksanitizer
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This is the second attempt at this patch. The first version was reverted
in 2ffd78daf9956a24098d1f959f21882e350e9d37
The problem, I suspect, was that the snapshot was represented as a
source_set, which inserted a node into the dependency tree.
include_bytes does properly insert the snapshot into rustc's depfile but
the use of source_set confused gn. Now the that the deno executable has
the create_deno_snapshot as a direct dependency, changes will be
propagated.
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This is a first step toward removing the fix_symlinks() hack from
tools/third_party.py.
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