Rename rust/ directory to core/

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
             ext -> target
 
       - name: Rust test
-        run: cargo test --manifest-path rust/Cargo.toml
+        run: cargo test --manifest-path core/Cargo.toml
 
       - name: Build and test
         run: |

CLAUDE.md

@@ -8,7 +8,7 @@ A fast static type checker for Ruby. Verifies method call validity using graph-b
 
 ```bash
 # Rust tests (most frequently used)
-cd rust && cargo test --lib
+cd core && cargo test --lib
 
 # Rust build (native extension)
 bundle exec rake compile
@@ -20,10 +20,10 @@ bundle exec rake test
 bundle exec rake
 
 # CLI binary build
-cd rust && cargo build --release --bin methodray --features cli
+cd core && cargo build --release --bin methodray --features cli
 
 # Clippy (lint)
-cd rust && cargo clippy --lib --all-features -- -W clippy::all
+cd core && cargo clippy --lib --all-features -- -W clippy::all
 
 # Ruby lint
 bundle exec rubocop
@@ -33,7 +33,7 @@ bundle exec rubocop
 
 ```bash
 # Rust: specific test
-cd rust && cargo test --lib test_name
+cd core && cargo test --lib test_name
 
 # Ruby: specific file
 bundle exec ruby -Ilib -Itest test/string_test.rb
@@ -42,7 +42,7 @@ bundle exec ruby -Ilib -Itest test/string_test.rb
 ## Project Structure
 
 ```
-rust/src/           # Rust core (type inference engine)
+core/src/           # Rust core (type inference engine)
   analyzer/         #   AST → Graph conversion (install.rs is the entry point)
   env/              #   Environment (GlobalEnv, LocalEnv, MethodRegistry, Scope)
   graph/            #   Type graph (Vertex, Box, ChangeSet)
@@ -69,7 +69,7 @@ test/               # Ruby integration tests (minitest)
 
 ### Rust
 
-- Add new AST node handlers as separate files under `rust/src/analyzer/` (e.g., `loops.rs`, `exceptions.rs`)
+- Add new AST node handlers as separate files under `core/src/analyzer/` (e.g., `loops.rs`, `exceptions.rs`)
 - Follow the existing function signature pattern: `process_*_node(genv, lenv, changes, source, node) -> Option<VertexId>`
 - When adding new nodes to `install.rs` dispatch, maintain the ordering: definitions → control flow → literals
 - `#[allow(dead_code)]` is prohibited in principle — remove unused code instead

Cargo.toml

@@ -1,3 +1,3 @@
 [workspace]
 resolver = "2"
-members = ["rust", "ext"]
+members = ["core", "ext"]

Rakefile

@@ -23,7 +23,7 @@ end
 namespace :cli do
   desc 'Build CLI binary for current platform'
   task :build do
-    sh 'cd rust && cargo build --release --bin methodray --features cli'
+    sh 'cd core && cargo build --release --bin methodray --features cli'
   end
 
   desc 'Build CLI binary for all platforms (requires cross)'
@@ -37,11 +37,11 @@ namespace :cli do
 
     platforms.each do |rust_target, ruby_platform|
       puts "Building for #{rust_target}..."
-      sh "cd rust && cross build --release --bin methodray --features cli --target #{rust_target}"
+      sh "cd core && cross build --release --bin methodray --features cli --target #{rust_target}"
 
       # Copy binary to platform-specific directory
       binary_name = rust_target.include?('windows') ? 'methodray.exe' : 'methodray'
-      src = "rust/target/#{rust_target}/release/#{binary_name}"
+      src = "core/target/#{rust_target}/release/#{binary_name}"
       dst_dir = "lib/methodray/#{ruby_platform}"
 
       mkdir_p dst_dir

ext/Cargo.toml

@@ -18,7 +18,7 @@ default = []
 cli = ["methodray-core/cli", "dep:clap", "dep:anyhow"]
 
 [dependencies]
-methodray-core = { path = "../rust", features = ["ruby-ffi"] }
+methodray-core = { path = "../core", features = ["ruby-ffi"] }
 magnus = "0.8"
 clap = { version = "4", features = ["derive"], optional = true }
 anyhow = { version = "1", optional = true }

lib/methodray/binary_locator.rb

@@ -21,8 +21,8 @@ def candidates
         File.expand_path(@binary_name, LIB_DIR),
         # Development: target/release (project root)
         File.expand_path("../../target/release/#{@binary_name}", LIB_DIR),
-        # Development: rust/target/release (legacy standalone binary)
-        File.expand_path("../../rust/target/release/#{@legacy_binary_name}", LIB_DIR)
+        # Development: core/target/release (legacy standalone binary)
+        File.expand_path("../../core/target/release/#{@legacy_binary_name}", LIB_DIR)
       ]
     end
   end

lib/methodray/commands.rb

@@ -46,7 +46,7 @@ def exec_rust_cli(command, args)
           warn 'Error: CLI binary not found.'
           warn ''
           warn 'For development, build with:'
-          warn '  cd rust && cargo build --release --bin methodray --features cli'
+          warn '  cd core && cargo build --release --bin methodray --features cli'
           warn ''
           warn 'If installed via gem, this might be a platform compatibility issue.'
           warn 'Please report at: https://github.com/dak2/method-ray/issues'

methodray.gemspec

@@ -30,9 +30,9 @@ Gem::Specification.new do |spec|
     'lib/methodray/*.{so,dylib,dll,bundle}', # Precompiled native extensions
     'exe/*',
     'ext/**/*',
-    'rust/**/*.rs',
-    'rust/Cargo.toml',
-    'rust/Cargo.lock',
+    'core/**/*.rs',
+    'core/Cargo.toml',
+    'core/Cargo.lock',
     'README.md',
     'LICENSE',
     'CHANGELOG.md'

test/method_loader_test.rb

@@ -4,7 +4,7 @@
 
 class MethodLoaderTest < Minitest::Test
   def setup
-    require_relative '../rust/src/rbs/method_loader'
+    require_relative '../core/src/rbs/method_loader'
     @loader = Rbs::MethodLoader.new
     @results = @loader.load_methods
   end