Module: Jade::Frontend::ForwardDeclaration::Helper

Included in:
Body, FunctionDeclaration, Implementation, InterfaceDeclaration, InteropImportDeclaration, Module, StructDeclaration, TypeDeclaration
Defined in:
lib/jade/frontend/forward_declaration/helper.rb

Instance Method Summary collapse

Instance Method Details

#deep_declare_node(ast, entry, registry) ⇒ Object 



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# File 'lib/jade/frontend/forward_declaration/helper.rb', line 9

def deep_declare_node(ast, entry, registry)
  ForwardDeclaration.deep_declare_node(ast, entry, registry)
end

#figure_out_type(entry, node) ⇒ Object 



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# File 'lib/jade/frontend/forward_declaration/helper.rb', line 13

def figure_out_type(entry, node)
  case node
  in AST::TypeVar(type:)
    Ok[Symbol.var(type, node.range)]

  in AST::TypeName(type:)
    require_type(entry, type, node.range)
      .map { Symbol.type_application(it.to_ref, []) }

  in AST::TypeApplication(constructor:, args:)
    constructor_r =
      case constructor
      in AST::TypeName
        require_type(entry, constructor.type, constructor.range)

      in AST::QualifiedTypeName(path:)
        *module_parts, type_name = path
        require_qualified_type(entry, module_parts.join('.'), type_name, constructor.range)
      end

    args
      .map { figure_out_type(entry, it) }
      .then { Results.sequence(it) }
      .and_then { |resolved_args| constructor_r.map { Symbol.type_application(it.to_ref, resolved_args, node.range) } }

  in AST::TypeFunction(params:, return_type:)
    params
      .map { figure_out_type(entry, it) }
      .then { Results.sequence(it) }
      .and_then { |resolved_params| figure_out_type(entry, return_type).map { Symbol.function_type(resolved_params, it) } }

  in AST::TypeTuple(items:) if items.length > Error::TupleArityOverflow::MAX_ARITY
    Err[Error::TupleArityOverflow.new(entry&.name, node.range, arity: items.length)]

  in AST::TypeTuple(items:)
    type_name = Stdlib::Tuple.constructor_by_arity(items.length)

    items
      .map { figure_out_type(entry, it) }
      .then { Results.sequence(it) }
      .map { Symbol.type_application(Symbol.type_ref(*type_name.split('.')), it, node.range) }

  in AST::TypeRecord(fields:, row_var:)
    row = row_var&.then { |row| Symbol.var(row.name, row.range) }

    fields
      .map { |k, v| figure_out_type(entry, v).map { [k, it] } }
      .then { Results.sequence(it) }
      .map { Symbol.record_type(it.to_h, row) }
  end
end

#shallow_declare_node(ast, registry, entry) ⇒ Object 



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# File 'lib/jade/frontend/forward_declaration/helper.rb', line 5

def shallow_declare_node(ast, registry, entry)
  ForwardDeclaration.shallow_declare_node(ast, registry, entry)
end