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Yukihiro "Matz" Matsumoto
21472638b9
Add support for hash patterns in pattern matching expressions:
- {key:} shorthand binds to variable with same name
- {key: pattern} matches key against pattern
- {**rest} captures remaining keys
- {**nil} requires exact match (no extra keys)
- {**} ignores extra keys without capturing
Parser adds new grammar rules (p_hash, p_hash_body, p_hash_elems,
p_hash_elem, p_kwrest) and new_pat_hash() constructor.
Codegen generates code to call deconstruct_keys on the target hash,
then iterates through key-pattern pairs to match each key's value.
Adds Hash#deconstruct_keys method that returns self for pattern matching.
Co-authored-by: Claude <noreply@anthropic.com>
mruby-compiler
This mrbgem provides the mruby compiler, which is responsible for parsing Ruby code and generating mruby bytecode.
Functionality
The mruby-compiler gem includes the following components:
- Parser: Translates Ruby source code into an abstract syntax tree (AST).
- Code Generator: Traverses the AST to produce executable mruby bytecode.
mrbcexecutable: A command-line tool for compiling.rbfiles into.mrbbytecode files.
Usage
The mrbc (mruby-bin-mrbc) executable will generate compiled binary from Ruby
programs via this gem.
Example of using mrbc:
# Compile a Ruby script to bytecode
bin/mrbc my_script.rb
# Run the compiled script
bin/mruby my_script.mrb