Class: Udb::ExtensionVersion

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Includes:
Comparable
Defined in:
lib/udb/obj/extension.rb,
lib/udb/condition.rb

Overview

A specific version of an extension

Defined Under Namespace

Classes: MemomizedState

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, version_spec, arch, fail_if_version_does_not_exist: false) ⇒ ExtensionVersion

Returns a new instance of ExtensionVersion.



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# File 'lib/udb/obj/extension.rb', line 518

def initialize(name, version_spec, arch, fail_if_version_does_not_exist: false)
  @name = name.freeze
  @version_spec = version_spec.freeze
  @version_str = @version_spec.canonical.freeze

  @arch = arch

  @ext = @arch.extension(@name)
  if fail_if_version_does_not_exist && @ext.nil?
    raise "Extension #{name} not found in architecture"
  elsif @ext.nil?
    Udb.logger.warn "Extension #{name} not found in architecture"
    return # can't go futher
  end

  @data = @ext.data["versions"].find { |v| VersionSpec.new(v["version"]) == @version_spec }

  if fail_if_version_does_not_exist && @data.nil?
    raise ArgumentError, "Version #{version_str} of #{@name} extension is not defined"
  elsif @data.nil?
    Udb.logger.warn "Version #{version_str} of #{@name} extension is not defined"
  end

  @memo = MemomizedState.new
end

Instance Attribute Details

#arch ⇒ Object (readonly)

Returns the value of attribute arch.



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# File 'lib/udb/obj/extension.rb', line 466

def arch
  @arch
end

#ext ⇒ Object (readonly)

Returns the value of attribute ext.



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# File 'lib/udb/obj/extension.rb', line 455

def ext
  @ext
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/udb/obj/extension.rb', line 451

def name
  @name
end

#version_spec ⇒ Object (readonly)

Returns the value of attribute version_spec.



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# File 'lib/udb/obj/extension.rb', line 459

def version_spec
  @version_spec
end

#version_str ⇒ Object (readonly)

Returns the value of attribute version_str.



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# File 'lib/udb/obj/extension.rb', line 463

def version_str
  @version_str
end

Class Method Details

.create(yaml, cfg_arch) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 475

def self.create(yaml, cfg_arch)
  requirements =
    if yaml.key?("version")
      yaml.fetch("version")
    else
      raise "not an extension version"
    end
  if requirements.is_a?(Array)
    if requirements.size != 1
      raise "not an extension version: #{requirements} (#{requirements.size})"
    end
    requirements = requirements.fetch(0)
  end
  begin
    cfg_arch.extension_version(yaml.fetch("name"), RequirementSpec.new(requirements).version_spec)
  rescue
    raise "not an extension version"
  end
end

.to_ext_req(ext_vers) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 562

def self.to_ext_req(ext_vers)
  raise "ext_vers cannot be empty" if ext_vers.empty?
  raise "All ext_vers must be of the same extension" unless ext_vers.all? { |ev| ev.name == ext_vers.fetch(0).name }

  sorted = ext_vers.sort
  unless T.must(sorted.min).compatible?(T.must(sorted.max))
    raise "Impossible to combine because the set contains incompatible versions"
  end

  ext_vers.fetch(0).arch.extension_requirement(ext_vers.fetch(0).name, "~> #{T.must(sorted.min).version_str}")
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1173

def <=>(other)
  return nil unless other.is_a?(ExtensionVersion)

  if other.name != @name
    @name <=> other.name
  else
    @version_spec <=> other.version_spec
  end
end

#all_csrs_that_must_be_implemented ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 778

def all_csrs_that_must_be_implemented
  @all_csrs_that_must_be_implemented ||= csrs + implied_csrs
end

#all_instructions_that_must_be_implemented ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 730

def all_instructions_that_must_be_implemented
  @all_instructions_that_must_be_implemented ||=
    begin
      pb =
        Udb.create_progressbar(
          "Finding implied instructions for #{self} [:bar] :current/:total",
          total: @arch.instructions.size,
          clear: true
        )
      @arch.instructions.select do |i|
        pb.advance

        (-i.defined_by_condition & to_condition).unsatisfiable_by_arch?(@arch)
      end
    end
end

#breaking? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/obj/extension.rb', line 635

def breaking?
  !@data["breaking"].nil?
end

#canonical_version ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 641

def canonical_version = @version_spec.canonical

#changes ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 668

def changes = @data["changes"].nil? ? [] : T.cast(@data.fetch("changes"), T::Array[String])

#compatible?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/obj/extension.rb', line 631

def compatible?(other) = compatible_versions.include?(other)

#compatible_versions ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 615

def compatible_versions
  return @memo.compatible_versions unless @memo.compatible_versions.nil?

  @memo.compatible_versions = []
  @ext.versions.each do |v|
    @memo.compatible_versions << v if v.version_spec >= @version_spec
    break if @memo.compatible_versions.size.positive? && v.breaking?
  end
  raise "Didn't even find self?" if compatible_versions.empty?

  @memo.compatible_versions
end

#condition_hash ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 603

def condition_hash
  {
    "extension" => {
      "name" => name,
      "version" => "= #{version_str}"
    }
  }
end

#conditional_extension_requirements(expand:) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 972

def conditional_extension_requirements(expand:)
  if expand && !@memo.conditional_expanded_extension_requirements.nil?
    @memo.conditional_expanded_extension_requirements
  elsif !expand && !@memo.conditional_unexpanded_extension_requirements.nil?
    @memo.conditional_unexpanded_extension_requirements
  else
    req = requirements_condition.to_logic_tree(expand:)

    cb = LogicNode.make_replace_cb do |node|
      next node unless node.type == LogicNodeType::Term

      rterm = node.children.fetch(0)

      next node unless rterm.is_a?(ExtensionTerm)

        # remove self
      next LogicNode::True if rterm.to_ext_req(@arch).satisfied_by?(self)

        # remove terms unconditionally true or false
      next LogicNode::True if unconditional_extension_requirements(expand: true).any? { |ext_req| ext_req.satisfied_by?(rterm.to_ext_req(@arch)) }
      next LogicNode::False if unconditional_extension_conflicts(expand: true).any? { |ext_req| ext_req.satisfied_by?(rterm.to_ext_req(@arch)) }

      node
    end

    remaining =
      req.replace_terms(cb).minimize(LogicNode::CanonicalizationType::ProductOfSums)

    list = T.let([], T::Array[ConditionalExtensionRequirement])

    # for the remaining terms, find out which ones
    remaining.terms.each do |term|
      next unless term.is_a?(ExtensionTerm)

      # find unconditional reqs of self && term
      c = Condition.conjunction([term.to_condition(@arch), to_condition], @arch)
      ctree = c.to_logic_tree(expand: true)
      unconditional_terms = remaining.terms.select do |cterm|
        next if cterm.is_a?(ParameterTerm) || cterm.is_a?(XlenTerm)
        raise "?" if cterm.is_a?(FreeTerm)

        next if cterm.name == name
        next if cterm.name == term.name

        cb = LogicNode.make_replace_cb do |node|
          if node.type == LogicNodeType::Term && node.node_children.fetch(0).is_a?(ExtensionTerm)
            node_term = T.cast(node.node_children.fetch(0), ExtensionTerm)
            if node_term.name == name
              LogicNode::True
            elsif node_term.name == cterm.name
              LogicNode::False
            else
              node
            end
          else
            node
          end
        end
        !ctree.replace_terms(cb).satisfiable?(@arch)
      end

      next if unconditional_terms.empty?

      if unconditional_terms.size == 1
        cond = T.cast(unconditional_terms.fetch(0), ExtensionTerm).to_ext_req(@arch).to_condition
        contradiction =
          Condition.conjunction(
            [
              cond,
              Condition.not(term.to_condition(@arch), @arch),
              to_condition
            ],
            @arch
          )
        is_needed = !contradiction.satisfiable?
        if is_needed
          if Condition.conjunction([cond, Condition.not(term.to_condition(@arch), @arch)], @arch).satisfiable? # skip reqs that are implied
            list << ConditionalExtensionRequirement.new(
              ext_req: term.to_ext_req(@arch),
              cond:
            )
          end
        end
      else
        conj = Condition.conjunction(unconditional_terms.map { |t| T.cast(t, ExtensionTerm).to_condition(@arch) }, @arch)
        conj_tree = conj.to_logic_tree(expand: false)
        formula = LogicNode.new(
          LogicNodeType::And,
          conj_tree.node_children.map do |node|
            covered = conj_tree.node_children.any? do |other_node|
              next false if node.equal?(other_node)

              if Condition.conjunction([to_condition, Condition.new(other_node.to_h, @arch)], @arch).always_implies?(Condition.new(node.to_h, @arch))
                true
              else
                false
              end
            end

            if covered
              LogicNode::True
            else
              node
            end
          end
        )
        # is this needed? if self can still be satisfied when condition is false but term is true,
        # this term isn't actually a requirement (it's most likely related to a conflict)
        contradiction =
          Condition.conjunction(
            [
              conj,
              Condition.not(term.to_condition(@arch), @arch),
              to_condition
            ],
            @arch
          )
        is_needed = !contradiction.satisfiable?
        cond = Condition.new(formula.reduce.to_h, @arch)
        if is_needed # && Condition.conjunction([cond, term.to_condition(@arch), to_condition], @arch).satisfiable? # make sure it's a requirement
          if Condition.conjunction([cond, Condition.not(term.to_condition(@arch), @arch)], @arch).satisfiable?
            list << ConditionalExtensionRequirement.new(
              ext_req: term.to_ext_req(@arch),
              cond:
            )
          end
        end
      end
    end

    if expand
      list.each do |cond_ext_req|
        ext_ver = T.must(cond_ext_req.ext_req.satisfying_versions.max)
        ext_ver.ext_requirements(expand:).each do |nested_cond_ext_req|
          already_in_cond_list =
            list.any? { |c| c.ext_req.satisfied_by?(nested_cond_ext_req.ext_req) } \
              || list.any? { |c| c.cond.to_logic_tree(expand: false).terms.any? { |t| T.cast(t, ExtensionTerm).to_ext_req(@arch).satisfied_by?(nested_cond_ext_req.ext_req) } }
          already_in_uncond_list =
            unconditional_extension_requirements(expand:).any? { |ext_req| nested_cond_ext_req.ext_req.satisfied_by?(ext_req) }
          next if already_in_uncond_list

          if already_in_cond_list
            # keep the one with the more expansive condition

          else
            if nested_cond_ext_req.cond.empty?
              list << ConditionalExtensionRequirement.new(
                ext_req: nested_cond_ext_req.ext_req,
                cond: cond_ext_req.cond
              )
            else
              list << ConditionalExtensionRequirement.new(
                ext_req: nested_cond_ext_req.ext_req,
                cond: Condition.conjunction([cond_ext_req.cond, nested_cond_ext_req.cond], @arch)
              )
            end
          end
        end
      end
    end

    if expand
      @memo.conditional_expanded_extension_requirements = list
      @memo.conditional_expanded_extension_requirements.freeze
    else
      @memo.conditional_unexpanded_extension_requirements = list
      @memo.conditional_unexpanded_extension_requirements.freeze
    end
  end
end

#contributors ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 675

def contributors
  return @contributors unless @contributors.nil?

  @contributors = []
  @data["contributors"]&.each do |c|
    @contributors << Person.new(c)
  end
  @contributors
end

#csrs ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 753

def csrs
  @csrs ||=
    ext.csrs.select do |csr|
      (csr.defined_by_condition & to_condition).satisfiable_by_cfg_arch?(@arch)
    end
end

#defining_extension_requirements ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 833

def defining_extension_requirements
  []
  # combined_requirements_condition.implied_extension_requirements
end

#directly_defined_instructions ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 697

def directly_defined_instructions
  @instructions ||=
    all_instructions_that_must_be_implemented - implied_instructions
end

#directly_defined_instructions_set ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 704

def directly_defined_instructions_set
  @instructions_set ||= Set.new(directly_defined_instructions)
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/obj/extension.rb', line 644

def eql?(other)
  if other.is_a?(ExtensionVersion)
    self.==(other)
  else
    false
  end
end

#exception_codes ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1186

def exception_codes
  @exception_codes ||=
    @arch.exception_codes.select do |ecode|
      # define every extension version except this one (and compatible),
      # and test if the condition can be satisfied
      ecode.defined_by_condition.satisfied_by_ext_req?(@arch.extension_requirement(@name, "~> #{@version_spec}"), include_requirements: false) ||
        ecode.defined_by_condition.satisfiability_depends_on_ext_req?(@arch.extension_requirement(@name, "~> #{@version_spec}"))
    end
end

#ext_conflicts(expand:) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1160

def ext_conflicts(expand:)
  # make a condition for the version, expand it, and then report what comes out, minus self
  if expand
    @memo.expanded_ext_conflicts ||=
      unconditional_extension_conflicts(expand:).map { |ext_req| ConditionalExtensionRequirement.new(ext_req:, cond: AlwaysTrueCondition.new(@arch)) }
  else
    @memo.unexpanded_ext_conflicts ||=
      unconditional_extension_conflicts(expand:).map { |ext_req| ConditionalExtensionRequirement.new(ext_req:, cond: AlwaysTrueCondition.new(@arch)) }
  end
end

#ext_requirements(expand:) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1146

def ext_requirements(expand:)
  # make a condition for the version, expand it, and then report what comes out, minus self
  if expand
    @memo.expanded_ext_requirements ||=
      unconditional_extension_requirements(expand:).map { |ext_req| ConditionalExtensionRequirement.new(ext_req:, cond: AlwaysTrueCondition.new(@arch)) } \
        + conditional_extension_requirements(expand:)
  else
    @memo.unexpanded_ext_requirements ||=
      unconditional_extension_requirements(expand:).map { |ext_req| ConditionalExtensionRequirement.new(ext_req:, cond: AlwaysTrueCondition.new(@arch)) } \
        + conditional_extension_requirements(expand:)
  end
end

#hash ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 653

def hash
  @memo.key ||= [@name, @version_spec].hash
end

#implied_csrs ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 761

def implied_csrs
  @implied_csrs ||=
    begin
      pb =
        Udb.create_progressbar(
          "Finding implied csrs for #{self} [:bar] :current/:total",
          total: @arch.csrs.size,
          clear: true
        )
      @arch.csrs.select do |csr|
        pb.advance
        (-csr.defined_by_condition & requirements_condition).satisfiable_by_cfg_arch?(@arch)
      end
    end
end

#implied_instructions ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 709

def implied_instructions
  @implied_instructions ||=
    begin
      pb =
        Udb.create_progressbar(
          "Finding implied instructions for #{self} [:bar] :current/:total",
          total: @arch.instructions.size,
          clear: true
        )
      @arch.instructions.select do |i|
        pb.advance

        (-i.defined_by_condition & requirements_condition).unsatisfiable_by_arch?(@arch)
      end
    end
end

#implied_instructions_set ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 748

def implied_instructions_set
  @implied_instructions_set ||= Set.new(implied_instructions)
end

#in_scope_csrs(xlens) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1208

def in_scope_csrs(xlens)
  csrs.select do |csr|
    csr.base.nil? || xlens.include?(csr.base)
  end
end

#in_scope_instructions(xlens) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1215

def in_scope_instructions(xlens)
  directly_defined_instructions.select do |inst|
    inst.base.nil? || xlens.include?(inst.base)
  end
end

#inspect ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/udb/obj/extension.rb', line 550

def inspect
  to_s
end

#interrupt_codes ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1199

def interrupt_codes
  @interrupt_codes ||=
    @arch.interrupt_codes.select do |icode|
      icode.defined_by_condition.satisfied_by_ext_req?(@arch.extension_requirement(@name, "~> #{@version_spec}"), include_requirements: false) ||
        icode.defined_by_condition.satisfiability_depends_on_ext_req?(@arch.extension_requirement(@name, "~> #{@version_spec}"))
    end
end

#params ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 687

def params
  @params ||=
    ext.params.select do |param|
      (param.defined_by_condition & to_condition).satisfiable_by_cfg_arch?(@arch)
    end
end

#ratification_date ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 662

def ratification_date = @data["ratification_date"]

#release_date ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 665

def release_date = @data["release_date"]

#requirements_condition ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 813

def requirements_condition
  @requirements_condition ||=
    if @data.key?("requirements") && ext.data.key?("requirements")
      Condition.new(
        {
          "allOf" => [
            @data.fetch("requirements"),
            ext.data.fetch("requirements")
          ]
        },
        @arch
      )
    elsif !@data.key?("requirements")
      ext.general_extension_requirements_condition
    else
      version_specific_requirements_condition
    end
end

#state ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 659

def state = T.cast(@data.fetch("state"), String)

#to_condition ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 581

def to_condition
  @memo.condition ||=
    Condition.new(condition_hash, @arch)
end

#to_condition_exclusive ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 588

def to_condition_exclusive
  @memo.condition_exclusive ||=
    begin
      other_versions = @ext.versions - [self]
      if other_versions.empty?
        to_condition
      elsif other_versions.size == 1
        to_condition & -other_versions.fetch(0).to_condition
      else
        to_condition & -Condition.disjunction(other_versions.map(&:to_condition), @arch)
      end
    end
end

#to_ext_req ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1222

def to_ext_req
  @ext_req ||= @arch.extension_requirement(name, "= #{version_str}")
end

#to_h ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 1227

def to_h
  @h ||=
    {
      "name" => @name,
      "version" => "= #{version_str}"
    }
end

#to_rvi_s ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 787

def to_rvi_s
  "#{name}#{@version_spec.to_rvi_s}"
end

#to_s ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 793

def to_s
  "#{name}@#{@version_spec.canonical}"
end

#to_term ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 576

def to_term
  @memo.term ||= ExtensionTerm.new(@name, "=", @version_str)
end

#unconditional_extension_conflicts(expand:) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 916

def unconditional_extension_conflicts(expand:)
  if expand && !@memo.unconditional_expanded_ext_conflicts.nil?
    @memo.unconditional_expanded_ext_conflicts
  elsif !expand && !@memo.unconditional_unexpanded_ext_conflicts.nil?
    @memo.unconditional_unexpanded_ext_conflicts
  else
    list =
      begin
        requirements_condition.ext_req_terms(expand:).select do |ext_req|
          (requirements_condition & ext_req.to_condition).unsatisfiable?
        end


        # req = requirements_condition.to_logic_tree(expand:)
        # expand_req = requirements_condition.to_logic_tree(expand: true)

        # # find all unconditional reqs -- that is,
        # # reqs that must always be satisfied for requirements to be met
        # unconditional_terms =
        #   req.terms.select do |term|
        #     next if term.is_a?(ParameterTerm) || term.is_a?(XlenTerm)
        #     raise "?" if term.is_a?(FreeTerm)

        #     next if term.name == name

        #     # see if req is unsatisfiable when term is present
        #     cb = LogicNode.make_replace_cb do |node|
        #       if node.type == LogicNodeType::Term && node.node_children.fetch(0).is_a?(ExtensionTerm)
        #         node_term = T.cast(node.node_children.fetch(0), ExtensionTerm)
        #         if node_term.name == name
        #           LogicNode::True
        #         elsif node_term.name == term.name
        #           LogicNode::True
        #         else
        #           node
        #         end
        #       else
        #         node
        #       end
        #     end
        #     !expand_req.replace_terms(cb).satisfiable?
        #   end

        # T.cast(unconditional_terms, T::Array[ExtensionTerm]).map { |t| t.to_ext_req(@arch) }
      end
    if expand
      @memo.unconditional_expanded_ext_conflicts = list
      @memo.unconditional_expanded_ext_conflicts.freeze
    else
      @memo.unconditional_unexpanded_ext_conflicts = list
      @memo.unconditional_unexpanded_ext_conflicts.freeze
    end
  end
end

#unconditional_extension_requirements(expand:) ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 843

def unconditional_extension_requirements(expand:)
  if expand && !@memo.unconditional_expanded_ext_reqs.nil?
    @memo.unconditional_expanded_ext_reqs
  elsif !expand && !@memo.unconditional_unexpanded_ext_reqs.nil?
    @memo.unconditional_unexpanded_ext_reqs
  else
    list =
      begin
        requirements_condition.ext_req_terms(expand:).select do |ext_req|
          # is requirements_condition satisfiable when ext_req is not met?
          (requirements_condition & -ext_req.to_condition).unsatisfiable?
        end


        # req = requirements_condition.to_logic_tree(expand:)
        # expand_req = requirements_condition.to_logic_tree(expand: true)

        # # find all unconditional reqs -- that is,
        # # reqs that must always be satisfied for requirements to be met
        # unconditional_terms =
        #   req.terms.select do |term|
        #     next if term.is_a?(ParameterTerm) || term.is_a?(XlenTerm)
        #     raise "?" if term.is_a?(FreeTerm)

        #     next if term.name == name

        #     # see if req is satisfiable when term is absent
        #     cb = LogicNode.make_replace_cb do |node|
        #       if node.type == LogicNodeType::Term && node.node_children.fetch(0).is_a?(ExtensionTerm)
        #         node_term = T.cast(node.node_children.fetch(0), ExtensionTerm)
        #         if node_term.name == name
        #           LogicNode::True
        #         elsif node_term.name == term.name
        #           LogicNode::False
        #         else
        #           node
        #         end
        #       else
        #         node
        #       end
        #     end
        #     !expand_req.replace_terms(cb).satisfiable?
        #   end
        # T.cast(unconditional_terms, T::Array[ExtensionTerm]).map { |t| t.to_ext_req(@arch) }
      end
    if expand
      @memo.unconditional_expanded_ext_reqs = list
      @memo.unconditional_expanded_ext_reqs.freeze
    else
      @memo.unconditional_unexpanded_ext_reqs = list
      @memo.unconditional_unexpanded_ext_reqs.freeze
    end
  end
end

#unconditional_extension_version_conflicts ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 901

def unconditional_extension_version_conflicts
  @unconditional_extension_version_conflicts ||=
    @arch.extension_versions.select do |ext_ver|
      next if ext_ver.name == name

      (to_condition & ext_ver.to_condition).unsatisfiable?
      # !Condition.conjunction([to_condition, ext_ver.to_condition], @arch).satisfiable?
    end
end

#url ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 671

def url = @data["url"]

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/obj/extension.rb', line 547

def valid? = !@ext.nil?

#version_specific_requirements_condition ⇒ Object 



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# File 'lib/udb/obj/extension.rb', line 799

def version_specific_requirements_condition
  @requirements_condition ||=
    @data.key?("requirements") \
      ? Condition.new(
          @data.fetch("requirements"),
          @arch,
          input_file: Pathname.new(ext.__source),
          input_line: ext.source_line(["versions", ext.data.fetch("versions").index { |v| VersionSpec.new(v["version"]) == version_spec }])
        )
      : AlwaysTrueCondition.new(@arch)
end