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2026-09-23 00:36:22 -04:00

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==================
Declarations
==================
immutable :: 1
mutable := 2
typed: i32: 3
deferred: i32
---
(source_file
(declaration
(identifier)
(signed_numeric_literal
(integer_literal)))
(declaration
(identifier)
(signed_numeric_literal
(integer_literal)))
(declaration
(identifier)
(primitive_type)
(signed_numeric_literal
(integer_literal)))
(declaration
(identifier)
(primitive_type)))
==================
Types and constructors
==================
Point :: &{
x: i32:
y: i32 = 0
}
point := &Point.{ x: 1; y = 2 }
maybe: []{i32?}: [nil, 1->|.some]
---
(source_file
(declaration
(identifier)
(type_definition
(product_type
(product_field
(identifier)
(primitive_type))
(product_field
(identifier)
(primitive_type)
(signed_numeric_literal
(integer_literal))))))
(declaration
(identifier)
(product_constructor
(identifier)
(product_entry
(identifier)
(signed_numeric_literal
(integer_literal)))
(product_entry
(identifier)
(signed_numeric_literal
(integer_literal)))))
(declaration
(identifier)
(array_type
(grouped_type
(optional_type
(primitive_type))))
(collection_literal
(collection_entry
(nil_literal))
(collection_entry
(pipeline_expression
(signed_numeric_literal
(integer_literal))
(direct_pipeline_stage
(pipeline_callable
(sum_constructor
(identifier)))))))))
==================
Control flow and patterns
==================
describe: []i32 -> str: @ values: []i32 { match values {
[] => 'empty'
[first, ...rest] if first > 0 => 'positive'
_ => 'other'
} }
---
(source_file
(declaration
(identifier)
(function_type
(array_type
(primitive_type))
(primitive_type))
(function_literal
(typed_parameter
(identifier)
(array_type
(primitive_type)))
(block
(match_expression
(identifier)
(match_arm
(pattern
(array_pattern))
(string_literal))
(match_arm
(pattern
(array_pattern
(array_pattern_entry
(pattern
(identifier)))
(array_pattern_entry
(identifier))))
(binary_expression
(identifier)
(signed_numeric_literal
(integer_literal)))
(string_literal))
(match_arm
(pattern)
(string_literal)))))))
==================
Physical-line continuations
==================
value := 'text' # the newline remains significant
->reverse_chrs
ready :: first
and second
---
(source_file
(declaration
(identifier)
(pipeline_expression
(string_literal)
(comment)
(continuation_pipeline_stage
(pipeline_callable
(identifier)))))
(declaration
(identifier)
(binary_expression
(identifier)
(identifier))))
==================
Compact range after an integer
==================
slice :: (source,0..<limit)
trailing_dot :: 1.
---
(source_file
(declaration
(identifier)
(tuple_value
(identifier)
(range_expression
(signed_numeric_literal
(integer_literal))
(identifier))))
(declaration
(identifier)
(signed_numeric_literal
(float_literal))))
==================
Typed function declarations
==================
double :: @ value: i32 { value * 2 }
square :: @ value: i32 => i32 { value * value }
add :: @ (left: i32, right: i32) { left + right }
unit :: @ { () }
---
(source_file
(declaration
(identifier)
(function_literal
(typed_parameter
(identifier)
(primitive_type))
(block
(binary_expression
(identifier)
(signed_numeric_literal
(integer_literal))))))
(declaration
(identifier)
(function_literal
(typed_parameter
(identifier)
(primitive_type))
(primitive_type)
(block
(binary_expression
(identifier)
(identifier)))))
(declaration
(identifier)
(function_literal
(typed_tuple_pattern
(typed_tuple_component
(identifier)
(primitive_type))
(typed_tuple_component
(identifier)
(primitive_type)))
(block
(binary_expression
(identifier)
(identifier)))))
(declaration
(identifier)
(function_literal
(block
(unit_literal)))))