20560974963

Committed 28 Dec 2025 11:21PM UTC coverage: 79.076% (+1.7%) from 77.331%

Build # 20560974963

Build Type

push

github

Committed by

web-flow

Commit Message

refactor: migrate parser from regex to token-based parser combinator (#29)

* refactor: migrate parser from regex to token-based parser combinator

- Replace monolithic parser_combinator.rb (2833 lines) with modular architecture
- Add Scanner for tokenization with regex literal support
- Create IR::InterpolatedString for string interpolation parsing
- Fix type inference for interpolated strings (returns String)
- Add TRuby::ParseError for unified error handling
- Organize parsers into primitives/, combinators/, and token/ directories
- Each file contains exactly one class (snake_case filename matches PascalCase class)

* fix: enhance parser to support ternary, splat args, and statement expressions

- Add ternary operator (? :) parsing in ExpressionParser
- Support double splat (**opts) and single splat (*args) in method calls
- Support keyword arguments (name: value) in method calls
- Allow case/if/unless/begin as assignment right-hand side values
- Improve generic type compatibility (Array[untyped] with Array[T])

Fixes type inference errors in keyword_args samples.

* style: fix RuboCop violations and adjust metrics limits

* fix: require set for Ruby 3.1 compatibility

Run Details

1849 of 2098 new or added lines in 53 files covered. (88.13%)

6 existing lines in 2 files now uncovered.

6644 of 8402 relevant lines covered (79.08%)

908.09 hits per line

Source File
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45.45

/lib/t_ruby/parser_combinator/combinators/flat_map.rb

1	# frozen_string_literal: true
2
3	module TRuby	1✔
4	module ParserCombinator	1✔
5	# FlatMap (bind)
6	class FlatMap < Parser	1✔
7	def initialize(parser, func)	1✔
NEW 8	@parser = parser	×
NEW 9	@func = func	×
10	end
11
12	def parse(input, position = 0)	1✔
NEW 13	result = @parser.parse(input, position)	×
NEW 14	return result if result.failure?	×
15
NEW 16	next_parser = @func.call(result.value)	×
NEW 17	next_parser.parse(input, result.position)	×
18	end
19	end
20	end
21	end

type-ruby / t-ruby / 20560974963

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