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Yukihiro "Matz" Matsumoto
510ebd738d
When parsing malformed input with many syntax errors (e.g., via eval
with a long garbage string), the parser would continue until the end
of input, causing long execution times.
Add an early termination check in the lexer that returns EOF once
the error count exceeds 10 (same as error_buffer size). This prevents
DoS from inputs like eval("garbage" * 1000).
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