Bob Nystrom 4f215f6531 feat: allow empty blocks in parser and fix native call slot assertion
Add support for empty block bodies in the Wren compiler by early-returning
from `finishBlock` when a right brace is immediately matched. This permits
syntactically valid constructs like `{}`, `if (true) {}`, and empty function
or method bodies.

Fix a copy-paste error in `wrenGetArgumentDouble` where the assertion
checked `nativeCallSlot` and `nativeCallNumArgs` instead of the correct
`foreignCallSlot` and `foreignCallNumArgs` fields.

Add test cases covering standalone empty blocks, empty blocks in if/else
statements, and empty function and method bodies returning null.
2013-12-29 18:46:21 +00:00
S
Description
Highly customized version of the wren programming language. It has all the modules that you would expect in a std library including http, websockets, sqlite3 and jinja-like templating engine. The idea is to make it suitable for web development.
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