Module: OracleSqlParser::Grammar::Select::Union

Includes:
Treetop::Runtime
Included in:
OracleSqlParser::Grammar::Select, UnionParser
Defined in:
lib/oracle-sql-parser/grammar/select/union.rb

Defined Under Namespace

Modules: SubqueriesWithUnion0, SubqueriesWithUnion1, SubqueriesWithUnion2, UnionAll0, UnionAll1, UnionAll2, UnionOrIntersectOrMinus0, UnionOrIntersectOrMinus1, UnionOrIntersectOrMinus2, UnionOrIntersectOrMinus3

Instance Method Summary collapse

Instance Method Details

#_nt_subqueries_with_union ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select/union.rb', line 45

def _nt_subqueries_with_union
  start_index = index
  if node_cache[:subqueries_with_union].has_key?(index)
    cached = node_cache[:subqueries_with_union][index]
    if cached
      node_cache[:subqueries_with_union][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_query_block
  s0 << r1
  if r1
    r3 = _nt_space
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      s4, i4 = [], index
      loop do
        i5, s5 = index, []
        r6 = _nt_union_or_intersect_or_minus
        s5 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s5 << r7
          if r7
            r9 = _nt_subquery
            s5 << r9
          end
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(SubqueriesWithUnion0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          s4 << r5
        else
          break
        end
      end
      if s4.empty?
        @index = i4
        r4 = nil
      else
        r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      end
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(SubqueriesWithUnion1)
    r0.extend(SubqueriesWithUnion2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:subqueries_with_union][start_index] = r0

  r0
end

#_nt_union_all ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select/union.rb', line 252

def _nt_union_all
  start_index = index
  if node_cache[:union_all].has_key?(index)
    cached = node_cache[:union_all][index]
    if cached
      node_cache[:union_all][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_union_keyword
  s0 << r1
  if r1
    i3, s3 = index, []
    r4 = _nt_space
    s3 << r4
    if r4
      r5 = _nt_all_keyword
      s3 << r5
    end
    if s3.last
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      r3.extend(UnionAll0)
    else
      @index = i3
      r3 = nil
    end
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(UnionAll1)
    r0.extend(UnionAll2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:union_all][start_index] = r0

  r0
end

#_nt_union_or_intersect_or_minus ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select/union.rb', line 152

def _nt_union_or_intersect_or_minus
  start_index = index
  if node_cache[:union_or_intersect_or_minus].has_key?(index)
    cached = node_cache[:union_or_intersect_or_minus][index]
    if cached
      node_cache[:union_or_intersect_or_minus][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_union_all
  s1 << r2
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(UnionOrIntersectOrMinus0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
    r0.extend(UnionOrIntersectOrMinus3)
    r0.extend(UnionOrIntersectOrMinus3)
  else
    i3, s3 = index, []
    r4 = _nt_intersect_keyword
    s3 << r4
    if s3.last
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      r3.extend(UnionOrIntersectOrMinus1)
    else
      @index = i3
      r3 = nil
    end
    if r3
      r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
      r0 = r3
      r0.extend(UnionOrIntersectOrMinus3)
      r0.extend(UnionOrIntersectOrMinus3)
    else
      i5, s5 = index, []
      r6 = _nt_minus_keyword
      s5 << r6
      if s5.last
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        r5.extend(UnionOrIntersectOrMinus2)
      else
        @index = i5
        r5 = nil
      end
      if r5
        r5 = SyntaxNode.new(input, (index-1)...index) if r5 == true
        r0 = r5
        r0.extend(UnionOrIntersectOrMinus3)
        r0.extend(UnionOrIntersectOrMinus3)
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:union_or_intersect_or_minus][start_index] = r0

  r0
end

#root ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select/union.rb', line 8

def root
  @root ||= :subqueries_with_union
end