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shuujii/set-MRB_STR_ASCII-flag-to-some-stringize-methods
Set `MRB_STR_ASCII` flag to some stringize methods
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Formerly, `__send__(*args)` modified `args` with `Array#shift`.
This bug affects optcarrot.
This changeset avoids the array destruction by using
`args = args[1, len-1]`.
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### Example
```ruby
# example.rb
class A
def eql?(o)
p self.class
super
end
def hash
1
end
end
class B < A; end
h = {A.new => 1}
h[B.new]
```
#### Before this patch:
```console
$ bin/mruby example.rb
A
```
#### After this patch (same as Ruby)
```console
$ bin/mruby example.rb
B
```
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The `FLAG_BYTEORDER_NATIVE` and `FLAG_BYTEORDER_NONATIVE` are no longer
needed.
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`cmpnum` function may return `nil` on error.
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Since `mruby 2.0`, compiled bytecode no longer depends on the
endian of the machine.
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Which loads 16bit integer to the register. The instruction number should
be reorder on massive instruction refactoring. The instruction is added
for `mruby/c` which had performance issue with `OP_EXT`. With this
instruction, `mruby/c` VM can just raise errors on `OP_EXT` extension
instructions.
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`mrb_run` requires to push callinfo stack before calling, which is very
hard from outside of `vm.c`. So there should be virtually no correct
usage of the function, hence the cause of #4488. We removed it.
You can use `mrb_top_run(mrb, proc, self, 0)` instead of
`mrb_run(mrb, proc self)`.
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When using `mrb_any_to_s()` for debugging purposes, giving an object
whose class is `NULL` no longer causes a SIGSEGV and no crash.
This is achieved by making `mrb_class_name()` and `mrb_str_cat_cstr()`
null safe.
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- mrb_utf8len() - returns the size of a UTF-8 char (in bytes)
- mrb_utf8_strlen() - returns the length of a UTF-8 string (in char)
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When removing elements from an array, it is possible to avoid creating
an empty array.
Before this patch:
```c
mrb_ary_splice(mrb, ary, head, len, mrb_ary_new(mrb));
```
After this patch:
```c
mrb_ary_splice(mrb, ary, head, len, mrb_undef_value());
```
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The difference between `mrb_singleton_class` and `mrb_singleton_class_ptr`:
- `mrb_singleton_class_ptr` returns `struct RClass*`.
- `mrb_singleton_class_ptr` returns `NULL` on immediate values where
`mrb_singleton_class` raises exceptions.
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The tranpoline code in 6a0b68f8b was wrong; reverted.
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In ISO, those methods should raise `TypeError`, but the spec has been
changed. The change was discussed in [Feature#12979].
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Fix `MRB_TT_CPTR` object with `MRB_NAN_BOXING`
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Previously, if `MRB_NAN_BOXING` is defined, for example,
`mrb_cptr_value()` could not keep an odd address.
If it is `MRB_32BIT`, it can be embedded in `NaN` as it is.
If it is `MRB_64BIT`, some operations are shared with `MRB_WORD_BOXING`.
In this case, the MRB_API function `mrb_nan_boxing_cptr_value()` is
defined.
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In order to share the same operation with `mrb_float_to_str()`,
the internal structure is modified.
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Changed to understand `#`, `0`, `-`, ` ` and `+`.
Based on src/stdio/vfprintf.c in git://git.musl-libc.org/musl
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Based on src/stdio/vfprintf.c in git://git.musl-libc.org/musl
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If `mrb->jmp` is `NULL` and the function `mrb_funcall_with_block()` is
called, GC Arena is returned from the function with over-used.
- A normal (no global exodus) return will consume two GC Arena's.
- In the event of an exception, five GC Arena are consumed.
This patch reduces consumption in both cases to one.
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C++ is stricter in implicit type casting.
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Differences from the PR #4940:
* Use simple search for short strings only.
* "short" means `m+n` is shorter than `MRB_QS_SHORT_STRING_LENGTH`.
* The current default value for `MRB_QS_SHORT_STRING_LENGTH` is 2048.
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My cat stepped on the keyboard at the last moment before the commit.
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In top-level, `mid` is `NULL`. We used to ignore 'mid` update for `NULL`.
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This bug was introduced in 694089f to address #4832
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Issue 19902: mruby:mruby_fuzzer: Stack-buffer-overflow in mrb_str_len_to_dbl
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The basic idea of this change is from @dearblue.
Note: the arguments of `mrb_str_pool()` have changed, but the function
is provided for internal use (No `MRB_API`). So basically you don't have
to worry about the change.
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The behavior when returning from a function without `va_end()` is
undefined.
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shuujii/add-mrb_num_args_error-for-wrong-number-of-arguments-error
Add `mrb_num_args_error()` for "wrong number of arguments" error
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Because literal pool may be released by GC.
#### Example:
```ruby
s1 = eval('"abcdefghijklmnopqrstuvwxyz01"')
GC.start
p s1 #=> "\x00\x00\x00\x00\x00\x00\x00\x90\x00\x00\x00\x00\x00\x00\x00\x90\x03\x00stuvwxyz01"
```
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Integrate `i` and `arg_i` in `mrb_get_args()`
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The behavior of these two variables is the same.
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