Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

RubyVM::AbstractSyntaxTree::Location#first_lineno

() -> ::Integer

location.first_lineno → integer

# File tmp/rubies/ruby-4.1.0-preview1/ast.rb, line 298
def first_lineno
  Primitive.ast_location_first_lineno
end

The line number in the source code where this AST’s text began.

See also #first_column #inspect #last_column also in 4.0 · 3.4