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https://github.com/mruby/mruby
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Yukihiro "Matz" Matsumoto
a4754c03b0
Replace cons-list based case statement implementation with variable-sized nodes for improved memory efficiency. The new implementation maintains identical register allocation behavior using the original's proven "nil-first, align-last" strategy. Key changes: - Convert new_case() to create variable-sized mrb_ast_case_node directly - Replace codegen_case() with gen_case_var() using array iteration - Apply original register allocation logic to new node structure - Fix else clause handling in jump dispatch logic Supports all case statement variants: - Bare case statements (case when condition) - Case with values (case expr when condition) - UPVAR combinations with closure variables - Splat operations (*case) 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