Tree-Sitter Grammar updates to make

We are implementing a new parser written in Darklang. This issue gathers the grammar updates that need to be done to match more of our full language.

Expressions:

[x] unit
[x] bool
[x] signed and unsigned Ints (Int8, Int16, Int32, Int64, Int128, UInt8, UInt16, UInt32, UInt64, UInt128)
[x] float
[x] char
- [ ] TODO: the space in 'a ' shouldn't be ignored, and the test should fail
[x] string
[x] let expression
[x] if/else
- [x] pretty-printer: fix the formatting for an if statement with an else whose root expression is also an if
- [x] Fix the requirement for parentheses in a then expression within an inline if/else expression
[x] infix
- [x] +, -, *, /, %, ^, >, <, >=, <=, ==, !=, ++
- [x] ||, &&
[x] lambda
[x] field access
[x] variable
[x] list
[x] dict
[x] tuple
[x] pipe
[x] record
[x] enum
[x] match
[x] record update
[x] paren_expression
[x] fix apply
[x] constant

Type references:

[x] Variable
[x] Unit
[x] Bool
[x] Signed and Unsigned Ints (Int8, Int16, Int32, Int64, Int128, UInt8, UInt16, UInt32, UInt64, UInt128)
[x] Float
[x] Char
[x] String
[x] DateTime
[x] Uuid
[x] List
[x] Tuple
[x] Dict
[x] CustomType
[x] DB
[x] Fn

Match pattern:

[x] Variable
[x] Enum
[x] Signed and Unsigned Ints (Int8, Int16, Int32, Int64, Int128, UInt8, UInt16, UInt32, UInt64, UInt128)
[x] String
[x] Char
[x] Bool
[x] Unit
[x] Float
[x] List
[x] ListCons
[x] Tuple

Source file:

[x] Type declaration
- [x] Alias
- [x] Record
- [x] Enum
[x] Function declaration
[x] Constant declaration (Unit, Bool, Signed and Unsigned Ints, Float, Char, String, List, Tuple, Dict, Enum)
[x] Module declaration

Other:

darklang / dark