Yukihiro "Matz" Matsumoto ebc10f3c57 Add NODE_BEGIN for explicit begin...end blocks ...

This commit introduces NODE_BEGIN as a distinct AST node type for
explicit begin...end blocks, separate from NODE_STMTS which represents
general statement sequences. This distinction will be essential for
implementing CRuby-compatible begin...end while/until constructs.

Key changes:
- Added NODE_BEGIN enum in node.h
- Added new_begin() function in parse.y using optimized cons() structure
- Modified begin...end grammar rule to generate NODE_BEGIN nodes
- Added NODE_BEGIN codegen support in codegen.c
- Added NODE_BEGIN to parser dump functionality

NODE_BEGIN uses a simpler cons() structure instead of list2() for
better memory efficiency, as it only contains a single body node.

Co-Authored-By: Claude <noreply@anthropic.com>

2025-07-11 10:09:34 +09:00

..

codegen.c

Add NODE_BEGIN for explicit begin...end blocks

2025-07-11 10:09:34 +09:00

keywords

Fix build for C++ version >= C++11 when enable_cxx_exception; close #5199

2020-12-02 19:15:42 +09:00

lex.def

feat: add pre-commit framework

2021-03-01 10:06:17 +10:00

node.h

Add NODE_BEGIN for explicit begin...end blocks

2025-07-11 10:09:34 +09:00

parse.y

Add NODE_BEGIN for explicit begin...end blocks

2025-07-11 10:09:34 +09:00

y.tab.c

Add NODE_BEGIN for explicit begin...end blocks

2025-07-11 10:09:34 +09:00