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The pipes compiler produced data types that encoded efficient and safe
bounded message passing protocols between two endpoints. It was also
capable of producing unbounded protocols.
It was useful research but was arguably done before its proper time.
I am removing it for the following reasons:
* In practice we used it only for producing the `oneshot` and `stream`
unbounded protocols and all communication in Rust use those.
* The interface between the proto! macro and the standard library
has a large surface area and was difficult to maintain through
language and library changes.
* It is now written in an old dialect of Rust and generates code
which would likely be considered non-idiomatic.
* Both the compiler and the runtime are difficult to understand,
and likewise the relationship between the generated code and
the library is hard to understand. Debugging is difficult.
* The new scheduler implements `stream` and `oneshot` by hand
in a way that will be significantly easier to maintain.
This shouldn't be taken as an indication that 'channel protocols'
for Rust are not worth pursuing again in the future.
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Change the former repetition::
for 5.times { }
to::
do 5.times { }
.times() cannot be broken with `break` or `return` anymore; for those
cases, use a numerical range loop instead.
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keep/remove.
Example:
if cfg!(test) {
calculation_to_run_only_when_testing();
}
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3 of these kinds no longer even exist in the CamelCase form
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Assertions without a message get a generated message that consists of a
prefix plus the stringified expression that is being asserted. That
prefix is currently a unique string, while a static string would be
sufficient and needs less code.
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Assertions without a message get a generated message that consists of a
prefix plus the stringified expression that is being asserted. That
prefix is currently a unique string, while a static string would be
sufficient and needs less code.
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Renamed bytes_iter to byte_iter to match other iterators
Refactored str Iterators to use DoubleEnded Iterators and typedefs instead of wrapper structs
Reordered the Iterator section
Whitespace fixup
Moved clunky `each_split_within` function to the one place in the tree where it's actually needed
Replaced all block doccomments in str with line doccomments
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Contiunation of naming cleanup in `libsyntax::ast`:
```rust
ast::node_id => ast::NodeId
ast::local_crate => ast::LOCAL_CRATE
ast::crate_node_id => ast::CRATE_NODE_ID
ast::blk_check_mode => ast::BlockCheckMode
ast::ty_field => ast::TypeField
ast::ty_method => ast::TypeMethod
```
Also moved span field directly into `TypeField` struct and cleaned up overlooked `ast::CrateConfig` renamings from last pull request.
Cheers,
Michael
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blk_check_mode, ty_field, ty_method}
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pull request for #8011
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A cleanup suggested on #7922.
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Fixes #7922.
Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
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Errors only turn into failures in the parser when you force them.
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nikomatsakis/rust/issue-4846-multiple-lifetime-parameters-1, r=pcwalton
Small step towards #4846. r? @msullivan
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multiple lifetime parameters, and not just one. Also add an option
for erasing lifetimes, which makes trans code somewhat simpler
and cleaner.
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Closes #4982.
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`crate => Crate`
`local => Local`
`blk => Block`
`crate_num => CrateNum`
`crate_cfg => CrateConfig`
Also, Crate and Local are not wrapped in spanned<T> anymore.
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When loading a module the parser will look for either foo.rs or foo/mod.rs and generate
an error when both are found.
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rm obsolete no-op lints
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When loading a module the parser will look for either foo.rs or foo/mod.rs and generate
an error when both are found.
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This does a number of things, but especially dramatically reduce the
number of allocations performed for operations involving attributes/
meta items:
- Converts ast::meta_item & ast::attribute and other associated enums
to CamelCase.
- Converts several standalone functions in syntax::attr into methods,
defined on two traits AttrMetaMethods & AttributeMethods. The former
is common to both MetaItem and Attribute since the latter is a thin
wrapper around the former.
- Deletes functions that are unnecessary due to iterators.
- Converts other standalone functions to use iterators and the generic
AttrMetaMethods rather than allocating a lot of new vectors (e.g. the
old code would have to allocate a new vector to use functions that
operated on &[meta_item] on &[attribute].)
- Moves the core algorithm of the #[cfg] matching to syntax::attr,
similar to find_inline_attr and find_linkage_metas.
This doesn't have much of an effect on the speed of #[cfg] stripping,
despite hugely reducing the number of allocations performed; presumably
most of the time is spent in the ast folder rather than doing attribute
checks.
Also fixes the Eq instance of MetaItem_ to correctly ignore spans, so
that `rustc --cfg 'foo(bar)'` now works.
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Place `pub` or `priv` on individual items instead.
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This does a number of things, but especially dramatically reduce the
number of allocations performed for operations involving attributes/
meta items:
- Converts ast::meta_item & ast::attribute and other associated enums
to CamelCase.
- Converts several standalone functions in syntax::attr into methods,
defined on two traits AttrMetaMethods & AttributeMethods. The former
is common to both MetaItem and Attribute since the latter is a thin
wrapper around the former.
- Deletes functions that are unnecessary due to iterators.
- Converts other standalone functions to use iterators and the generic
AttrMetaMethods rather than allocating a lot of new vectors (e.g. the
old code would have to allocate a new vector to use functions that
operated on &[meta_item] on &[attribute].)
- Moves the core algorithm of the #[cfg] matching to syntax::attr,
similar to find_inline_attr and find_linkage_metas.
This doesn't have much of an effect on the speed of #[cfg] stripping,
despite hugely reducing the number of allocations performed; presumably
most of the time is spent in the ast folder rather than doing attribute
checks.
Also fixes the Eq instance of MetaItem_ to correctly ignore spaces, so
that `rustc --cfg 'foo(bar)'` now works.
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This makes custom borrowing implementations for custom smart pointers
sound.
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