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-rw-r--r--lib/irb/ruby-lex.rb64
-rw-r--r--test/irb/test_ruby_lex.rb70
2 files changed, 117 insertions, 17 deletions
diff --git a/lib/irb/ruby-lex.rb b/lib/irb/ruby-lex.rb
index 68751b4de1..9ae9f16cb7 100644
--- a/lib/irb/ruby-lex.rb
+++ b/lib/irb/ruby-lex.rb
@@ -124,6 +124,7 @@ class RubyLex
prev_spaces = md.nil? ? 0 : md[1].count(' ')
@tokens = ripper_lex_without_warning(lines[0..line_index].join("\n"))
depth_difference = check_newline_depth_difference
+ depth_difference = 0 if depth_difference < 0
prev_spaces + depth_difference * 2
else
code = line_index.zero? ? '' : lines[0..(line_index - 1)].map{ |l| l + "\n" }.join
@@ -360,14 +361,8 @@ class RubyLex
next if index > 0 and tokens[index - 1][3].allbits?(Ripper::EXPR_FNAME)
case t[2]
when 'do'
- if index > 0 and tokens[index - 1][3].anybits?(Ripper::EXPR_CMDARG | Ripper::EXPR_ENDFN | Ripper::EXPR_ARG)
- # method_with_block do; end
- indent += 1
- else
- # while cond do; end # also "until" or "for"
- # This "do" doesn't increment indent because "while" already
- # incremented.
- end
+ syntax_of_do = take_corresponding_syntax_to_kw_do(tokens, index)
+ indent += 1 if syntax_of_do == :method_calling
when 'def', 'case', 'for', 'begin', 'class', 'module'
indent += 1
when 'if', 'unless', 'while', 'until'
@@ -382,6 +377,40 @@ class RubyLex
indent
end
+ def take_corresponding_syntax_to_kw_do(tokens, index)
+ syntax_of_do = nil
+ # Finding a syntax correnponding to "do".
+ index.downto(0) do |i|
+ tk = tokens[i]
+ # In "continue", the token isn't the corresponding syntax to "do".
+ #is_continue = process_continue(@tokens[0..(i - 1)])
+ # continue ではなく、直前に (:on_ignored_nl|:on_nl|:on_comment):on_sp* みたいなのがあるかどうかを調べる
+ non_sp_index = tokens[0..(i - 1)].rindex{ |t| t[1] != :on_sp }
+ first_in_fomula = false
+ if non_sp_index.nil?
+ first_in_fomula = true
+ elsif [:on_ignored_nl, :on_nl, :on_comment].include?(tokens[non_sp_index][1])
+ first_in_fomula = true
+ end
+ if tk[3].anybits?(Ripper::EXPR_CMDARG) and tk[1] == :on_ident
+ # The target method call to pass the block with "do".
+ syntax_of_do = :method_calling
+ break if first_in_fomula
+ elsif tk[1] == :on_kw && %w{while until for}.include?(tk[2])
+ # A loop syntax in front of "do" found.
+ #
+ # while cond do # also "until" or "for"
+ # end
+ #
+ # This "do" doesn't increment indent because the loop syntax already
+ # incremented.
+ syntax_of_do = :loop_syntax
+ break if first_in_fomula
+ end
+ end
+ syntax_of_do
+ end
+
def check_newline_depth_difference
depth_difference = 0
open_brace_on_line = 0
@@ -428,14 +457,8 @@ class RubyLex
next if index > 0 and @tokens[index - 1][3].allbits?(Ripper::EXPR_FNAME)
case t[2]
when 'do'
- if index > 0 and @tokens[index - 1][3].anybits?(Ripper::EXPR_CMDARG | Ripper::EXPR_ENDFN | Ripper::EXPR_ARG)
- # method_with_block do; end
- depth_difference += 1
- else
- # while cond do; end # also "until" or "for"
- # This "do" doesn't increment indent because "while" already
- # incremented.
- end
+ syntax_of_do = take_corresponding_syntax_to_kw_do(@tokens, index)
+ depth_difference += 1 if syntax_of_do == :method_calling
when 'def', 'case', 'for', 'begin', 'class', 'module'
depth_difference += 1
when 'if', 'unless', 'while', 'until', 'rescue'
@@ -445,6 +468,8 @@ class RubyLex
end
when 'else', 'elsif', 'ensure', 'when', 'in'
depth_difference += 1
+ when 'end'
+ depth_difference -= 1
end
end
end
@@ -516,7 +541,12 @@ class RubyLex
when :on_kw
next if index > 0 and @tokens[index - 1][3].allbits?(Ripper::EXPR_FNAME)
case t[2]
- when 'def', 'do', 'case', 'for', 'begin', 'class', 'module'
+ when 'do'
+ syntax_of_do = take_corresponding_syntax_to_kw_do(@tokens, index)
+ if syntax_of_do == :method_calling
+ spaces_of_nest.push(spaces_at_line_head)
+ end
+ when 'def', 'case', 'for', 'begin', 'class', 'module'
spaces_of_nest.push(spaces_at_line_head)
when 'rescue'
unless t[3].allbits?(Ripper::EXPR_LABEL)
diff --git a/test/irb/test_ruby_lex.rb b/test/irb/test_ruby_lex.rb
index 30bae1e4e5..fa2f0492fb 100644
--- a/test/irb/test_ruby_lex.rb
+++ b/test/irb/test_ruby_lex.rb
@@ -263,6 +263,76 @@ module TestIRB
end
end
+ def test_corresponding_syntax_to_keyword_do_in_class
+ input_with_correct_indents = [
+ Row.new(%q(class C), nil, 2, 1),
+ Row.new(%q( while method_name do), nil, 4, 2),
+ Row.new(%q( 3), nil, 4, 2),
+ Row.new(%q( end), 2, 2, 1),
+ Row.new(%q( foo do), nil, 4, 2),
+ Row.new(%q( 3), nil, 4, 2),
+ Row.new(%q( end), 2, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ ]
+
+ lines = []
+ input_with_correct_indents.each do |row|
+ lines << row.content
+ assert_indenting(lines, row.current_line_spaces, false)
+ assert_indenting(lines, row.new_line_spaces, true)
+ assert_nesting_level(lines, row.nesting_level)
+ end
+ end
+
+ def test_corresponding_syntax_to_keyword_do
+ input_with_correct_indents = [
+ Row.new(%q(while i > 0), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(while true), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(while ->{i > 0}.call), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(while ->{true}.call), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(while i > 0 do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(while true do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(while ->{i > 0}.call do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(while ->{true}.call do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(foo do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(foo true do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(foo ->{true} do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ Row.new(%q(foo ->{i > 0} do), nil, 2, 1),
+ Row.new(%q( 3), nil, 2, 1),
+ Row.new(%q(end), 0, 0, 0),
+ ]
+
+ lines = []
+ input_with_correct_indents.each do |row|
+ lines << row.content
+ assert_indenting(lines, row.current_line_spaces, false)
+ assert_indenting(lines, row.new_line_spaces, true)
+ assert_nesting_level(lines, row.nesting_level)
+ end
+ end
+
def test_oneliner_def_in_multiple_lines
input_with_correct_indents = [
Row.new(%q(def a()=[), nil, 4, 2),