(https://github.com/ruby/irb/pull/761)
* Implement `history` command
Lists IRB input history with indices. Also aliased as `hist`.
* Add tests for `history` command
* Address feedback: `puts` with multiple arguments instead of `join`ing
* Address feedback: Handle nil from splitting an empty input string
* Refactor line truncation
* Add `-g` grep option to `history` command
* Add `history` command to README
* Remove unused `*args` parameter
* Allow spaces to be included in grep
* Allow `/` to be included in grep regex
* Handle `input` being an empty string
* Exclude "#{index}: " from matching the grep regex
* Add new line after joining
3f9eacbfa9
A lot of tools use Ripper/RubyVM::AbstractSyntaxTree to determine
if a source is valid. These tools both create an AST instead of
providing an API that will return a boolean only.
This new API only creates the C structs, but doesn't bother
reifying them into Ruby/the serialization API. Instead it only
returns true/false, which is significantly more efficient.
7014740118
The same array was being re-created in a loop (as well as the `generic_local_platform`), which is avoidable by hoisting it to a frozen array created once
009a3c6d0d
Generally the removed message is very similar, but often it needs to
specify that the feature has "been removed" instead of "will be
removed", or "been deprecated". And a few chunks of text needed more
substantial updates. And a number of them seemed to have been carefully
crafted to make sense in either context, so I left those alone.
8d42cf9104
Previously numbered parameters were a field on blocks and lambdas
that indicated the maximum number of numbered parameters in either
the block or lambda, respectively. However they also had a
parameters field that would always be nil in these cases.
This changes it so that we introduce a NumberedParametersNode that
goes in place of parameters, which has a single uint8_t maximum
field on it. That field contains the maximum numbered parameter in
either the block or lambda.
As a part of the PR, I'm introducing a new UInt8Field type that
can be used on nodes, which is just to make it a little more
explicit what the maximum values can be (the maximum is actually 9,
since it only goes up to _9). Plus we can do a couple of nice
things in serialization like just read a single byte.
2d87303903
The problem was deeper than just looking back a single token.
You can push the heredoc_end token way back into the list.
We need to save the last location of a heredoc end to see if
it's the last token in the file.
Fixes https://github.com/ruby/prism/pull/195491dfd4eecd
(https://github.com/ruby/irb/pull/784)
* Page evaluation result's output
This will make it easier to work with long output that exceeds the terminal's height.
* Use consistent TERM in rendering tests
This makes sure we get consistent result on all platforms.
4fedce93d3
Currently, auto-install with git gems fails, when
it would succeed with a rubygems-source gem
Fix the issue by doing the same fallback for git errors as we do for
missing gems, the git errors should only bubble up in these cases when
the gem is not installed, meaning we want to go through the install flow
(and any persistent errors will be raised through there)
e25a339f7a
Fundamentally, `foo { |bar,| }` is different from `foo { |bar, *| }`
because of arity checks. This PR introduces a new node to handle
that, `ImplicitRestNode`, which goes in the `rest` slot of parameter
nodes instead of `RestParameterNode` instances.
This is also used in a couple of other places, namely:
* pattern matching: `foo in [bar,]`
* multi target: `for foo, in bar do end`
* multi write: `foo, = bar`
Now the only splat nodes with a `NULL` value are when you're
forwarding, as in: `def foo(*) = bar(*)`.
dba2a3b652
* Remove trailing spaces
* Migrate show_source tests to integration tests
Because show_source tests often need to define class and/or methods,
they can easily leak state to other tests. Changing them to integration
tests will ensure that they are run in a clean environment.
* Fix NoMethodError caused by SourceFinder#method_target
3c39f13397
prompt
(https://github.com/ruby/irb/pull/791)
Currently, IRB just terminates if `main.to_s` raises while IRB
constructs the prompt string. This can easily happen if the user wants
to start an IRB session in the instance scope of an uninitialized
object, for example:
```
class C
def initialize
binding.irb
@values = []
end
def to_s = @values.join(',') # raises if uninitialized
end
C.new
```
This patch makes IRB rescue from such an exception and displays the
class name of the exception instead of `main.to_s` to indicate some
error has occurred.
We may display more detailed information about the exception, but this
patch chooses not to do so because 1) the prompt has limited space,
2) users can evaluate `to_s` in IRB to examine the error if they want,
and 3) obtaining the details can also raise, which requires nested
exception handling and can be complicated.
412ab26067
(https://github.com/ruby/irb/pull/789)
If `output_modifier_proc`'s `complete` arg is true, it means the input is
submitted. In that case, debugger hint doesn't provide value to users
and adds noise to the output. So we hide it in such case.
f86d9dbe2f
This changes the CompactIndexClient to store etags received from the
compact index in separate files rather than relying on the MD5 checksum
of the file as the etag.
Smoothes the upgrade from md5 etags to opaque by generating them when no
etag file exists. This should reduce the initial impact of changing the
caching behavior by reducing cache misses when the MD5 etag is the same.
Eventually, the MD5 behavior should be retired and the etag should be
considered completely opaque with no assumption that MD5 would match.
```
==> memprof.after.txt <==
Total allocated: 1.13 MB (2352 objects)
Total retained: 10.08 kB (78 objects)
==> memprof.before.txt <==
Total allocated: 46.27 MB (38439 objects)
Total retained: 9.94 kB (75 objects)
```
Yes, we were allocating 45MB of arrays in `dependencies_installed?`,
it was accidentally cubic.
13ab874388
(https://github.com/ruby/irb/pull/788)
Similar to Pry, it displays user-defined aliases in the help message with
a dedicated section. With the current default aliases, it looks like:
```
...other sections...
Aliases
$ Alias for `show_source`
@ Alias for `whereami`
```
2a0eacc891
