Move the definition of struct mrb_ast_node to a private header to
hide implementation details from the public API.
Co-authored-by: Gemini <gemini@google.com>
Move STR_FUNC_* macros, enum mrb_string_type, and struct
mrb_parser_heredoc_info from include/mruby/compile.h to
mrbgems/mruby-compiler/core/node.h.
These types are internal to the mruby compiler gem and are used by
both parse.y and codegen.c. Moving them to node.h encapsulates them
within the compiler gem, cleaning up the public mruby/compile.h header.
Co-authored-by: Gemini <gemini@google.com>
mruby does not provide `begin ... end while cond` that behave at-least-once
loop, like CRuby does. It remains in TODO.md for long time. But finally we have
implemented the behavior.
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>
Modify new_stmts to flatten unnecessary nesting by returning existing
NODE_STMTS directly instead of wrapping them. This reduces memory usage
and AST complexity when multiple parentheses levels are used.
Before: (((expr1; expr2))) creates nested NODE_STMTS
After: (((expr1; expr2))) creates single NODE_STMTS with statements
Co-authored-by: Claude <noreply@anthropic.com>
Rename NODE_BEGIN to NODE_STMTS to better reflect its purpose as a
container for statement sequences, not specifically begin-end blocks.
This prepares for adding a dedicated node type for explicit begin-end
constructs.
- Rename NODE_BEGIN enum to NODE_STMTS in node.h
- Update all references in parse.y and codegen.c
- Rename new_begin function to new_stmts
Co-Authored-By: Claude <noreply@anthropic.com>
ADDI/SUBI may fall back to method call that may clear block argument
place holder, which may be a live register. So we cannot directly call
ADDI/SUBI over local variables.
Since we have introduced lrama, everyone can generate same `y.tab.c`
on any platform, without installing Bison. That was the reason we have
removed `y.tab.c` from the repository. But this change cause #6515 and
bothered out-of-tree builds. So we (reluctantly) added `y.tab.c` again.
OP_LOADI stores an 8 bit integer to a register, so we renamed the
instruction name to describe the behavior more precisely, like
OP_LOADI16 and OP_LOADI32.
Add `OP_NOP` to distinguish `retry` and jump targets while maintaining instruction compatibility.
Ideally, it might be preferable to separate them into `OP_REDO`.
fixed#6439
Recent changes make mrb_irep_remove_lv() used no longer. Removing this
function would not make any compatibility issue, since it's an internal
function.
Yukihiro "Matz" Matsumoto