class RuboCop::Cop::Layout::EndAlignment
end
if true
variable =
end)
puts(if true
end
variable = if true
# good
end)
puts(if true
end
variable = if true
# bad
@example EnforcedStyleAlignWith: start_of_line
end
if true
variable =
end
variable = if true
# good
end
variable = if true
# bad
@example EnforcedStyleAlignWith: variable
end
if true
variable =
end
variable = if true
# good
end
variable = if true
# bad
@example EnforcedStyleAlignWith: keyword (default)
start of the line where the matching keyword appears.
If it’s set to ‘start_of_line`, the `end` shall be aligned with the
left-hand-side of the variable assignment, if there is one.
If it’s set to ‘variable` the `end` shall be aligned with the
shall be aligned with the start of the keyword (if, class, etc.).
If it’s set to ‘keyword` (which is the default), the `end`
configuration parameter:
Three modes are supported through the `EnforcedStyleAlignWith`
This cop checks whether the end keywords are aligned properly.
def alignment_node(node)
def alignment_node(node) if style == :keyword node elsif style == :variable alignment_node_for_variable_style(node) else start_line_range(node) end end
def alignment_node_for_variable_style(node)
def alignment_node_for_variable_style(node) return node.parent if node.case_type? && node.argument? assignment = node.ancestors.find(&:assignment?) if assignment && !line_break_before_keyword?(assignment.source_range, node) assignment else # Fall back to 'keyword' style if this node is not on the RHS of an # assignment, or if it is but there's a line break between LHS and # RHS. node end end
def asgn_variable_align_with(outer_node, inner_node)
def asgn_variable_align_with(outer_node, inner_node) expr = outer_node.source_range if !line_break_before_keyword?(expr, inner_node) range_between(expr.begin_pos, inner_node.loc.keyword.end_pos) else inner_node.loc.keyword end end
def autocorrect(node)
def autocorrect(node) AlignmentCorrector.align_end(processed_source, node, alignment_node(node)) end
def check_asgn_alignment(outer_node, inner_node)
def check_asgn_alignment(outer_node, inner_node) align_with = { keyword: inner_node.loc.keyword, start_of_line: start_line_range(inner_node), variable: asgn_variable_align_with(outer_node, inner_node) } check_end_kw_alignment(inner_node, align_with) ignore_node(inner_node) end
def check_assignment(node, rhs)
def check_assignment(node, rhs) # If there are method calls chained to the right hand side of the # assignment, we let rhs be the receiver of those method calls before # we check if it's an if/unless/while/until. return unless (rhs = first_part_of_call_chain(rhs)) return unless CONDITIONAL_NODES.include?(rhs.type) return if rhs.if_type? && rhs.ternary? check_asgn_alignment(node, rhs) end
def check_other_alignment(node)
def check_other_alignment(node) align_with = { keyword: node.loc.keyword, variable: node.loc.keyword, start_of_line: start_line_range(node) } check_end_kw_alignment(node, align_with) end
def on_case(node)
def on_case(node) if node.argument? check_asgn_alignment(node.parent, node) else check_other_alignment(node) end end
def on_class(node)
def on_class(node) check_other_alignment(node) end
def on_if(node)
def on_if(node) check_other_alignment(node) unless node.ternary? end
def on_module(node)
def on_module(node) check_other_alignment(node) end
def on_until(node)
def on_until(node) check_other_alignment(node) end
def on_while(node)
def on_while(node) check_other_alignment(node) end
def start_line_range(node)
def start_line_range(node) expr = node.source_range buffer = expr.source_buffer source = buffer.source_line(expr.line) range = buffer.line_range(expr.line) range_between(range.begin_pos + (source =~ /\S/), range.begin_pos + (source =~ /\s*\z/)) end