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That means it's a method not to be included in the backtrace, for
example `raise`.
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It uses BER number compression of delta of instruction positions and line
numbers. BER compression is a variable length number representation.
* `mrb_debug_line_ary`: array of line numbers represented in `uint16_t`.
`[lineno, lineno, ...]`
* `mrb_debug_line_flat_map`: array of `mrb_irep_debug_info_line`, which
is `struct {uint32_t pos; uint16_t lineno}`, for each line.
* `mrb_debug_line_packed_map` [new]: sequence of BER compressed 2
numbers, `pos_delta, lineno_delta`. Deltas are differences from
previous values (starting `0`). `line_entry_counts` represents total
length of a packed map string for this type.
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Add information on yamllint as comments
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Style the CONTRIBUTING guide
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https://github.com/cremno/mruby into cremno-mrb_debug_strdup-and-strndup
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To be compatible with CRuby.
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- `Lit` -> `Pool`
- `SEQ` -> `Irep`
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The code generator no longer need to emit `OP_LOADSYM` after `OP_DEF`.
`doc/opcode.md` is also updated.
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This reverts commit fd10c7231906ca48cb35892d2a86460004b62249.
I thought it was OK to restrict index value within 1 byte, but in some
cases index value could be 16 bits (2 bytes). I had several ideas to
address the issue, but reverting `fd10c72` is the easiest way. The
biggest reason is `mruby/c` still supports `OP_EXT[123]`, so that they
don't need any additional work.
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Drop unnecessary upper procs linked from class/module/def syntax
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Avoid warnings with `ruby -cw`
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```console
% for rb in `git ls-files '*/mrblib/*.rb' 'mrblib'`; do ruby30 -cw $rb > /dev/null; done
mrbgems/mruby-array-ext/mrblib/array.rb:389: warning: assigned but unused variable - ary
mrbgems/mruby-array-ext/mrblib/array.rb:663: warning: assigned but unused variable - len
mrbgems/mruby-hash-ext/mrblib/hash.rb:119: warning: possibly useless use of a variable in void context
mrbgems/mruby-hash-ext/mrblib/hash.rb:259: warning: assigned but unused variable - keys
mrbgems/mruby-io/mrblib/io.rb:229: warning: literal in condition
mrbgems/mruby-io/mrblib/io.rb:280: warning: literal in condition
mrbgems/mruby-string-ext/mrblib/string.rb:347: warning: assigned but unused variable - len
mrbgems/mruby-toplevel-ext/mrblib/toplevel.rb:2: warning: parentheses after method name is interpreted as an argument list, not a decomposed argument
```
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It does not need to hold an anonymous proc for constant search.
Also, this change can be expected to cause an anonymous proc to be GC'd.
This is useful for metaprogramming that makes heavy use of the `class`/`module`/`def` syntax in the `class_eval`/`eval` method.
Example:
- code
```ruby
p ObjectSpace.count_objects
String.class_eval do
def a
end
end
p ObjectSpace.count_objects
String.class_eval do
eval <<~CODE
def b
end
CODE
end
p ObjectSpace.count_objects
```
- result of building mruby-head (d63c0df6b) with `build_config/default.rb`
```
{:TOTAL=>1024, :FREE=>262, :T_PROC=>495, :T_ENV=>61, ...}
{:TOTAL=>1024, :FREE=>259, :T_PROC=>497, :T_ENV=>62, ...}
{:TOTAL=>1024, :FREE=>255, :T_PROC=>500, :T_ENV=>63, ...}
```
- result of building mruby with this patch and `build_config/default.rb`
```
{:TOTAL=>1024, :FREE=>264, :T_PROC=>494, :T_ENV=>60, ...}
{:TOTAL=>1024, :FREE=>262, :T_PROC=>495, :T_ENV=>61, ...}
{:TOTAL=>1024, :FREE=>261, :T_PROC=>496, :T_ENV=>61, ...}
```
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Fixed finding variables from `proc` in `binding.eval` failed
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Fixed finding variables defined in the upper proc failed
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Previously the following code did not produce the expected results:
```ruby
bx = binding
block = bx.eval("a = 1; proc { a }")
bx.eval("a = 2")
p block.call # Expect 2 but return 1 due to a bug
```
The previous implementation of `Binding#eval` evaluated the code and then merged the top layer variables.
This patch will parse and expand the variable space before making a call to `eval`.
This means that the call to `Binding#eval` will do the parsing twice.
In addition, the following changes will be made:
- Make `mrb_parser_foreach_top_variable()`, `mrb_binding_extract_proc()` and `mrb_binding_extract_env()` functions private global functions.
- Remove the `posthook` argument from `mrb_exec_irep()`.
The `posthook` argument was introduced to implement the `binding` method.
This patch is unnecessary because it uses a different implementation method.
ref #5362
fixed #5491
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Fix memory leak in `Kernel#eval`
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If no new variable was defined in the `eval` method, the variable was hidden from the nested `eval` method.
```ruby
a = 1
p eval %(b = 2; eval %(a)) # => 1 (good)
p eval %(eval %(a)) # => undefined method 'a' (NoMethodError)
```
This issue has occurred since mruby 3.0.0.
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The `mrbc_context` remained unreleased when the `mrb_parse_nstring()` function returned `NULL`.
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- `Module#method_added`
- `BasicObject#singleton_method_added`
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Add official pre-commit file-contents-sorter
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Remove unneeded bash script sort-codespell-wordlist.sh
https://github.com/pre-commit/pre-commit-hooks#file-contents-sorter
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* android_arm64-v8a.rb -> android_arm64_v8a.rb
* no-float.rb -> host-nofloat.rb
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Enable markdownlint rules MD003,MD005,MD007
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pre-commit autoupdate
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https://pre-commit.com/#pre-commit-autoupdate
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Lint Markdown
https://github.com/DavidAnson/markdownlint#rules--aliases
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- `truncate`
- `floor`
- `ceil`
`round` already takes `ndigits`.
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Added `MRB_OBJ_ALLOC()` macro that does not require a cast
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