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[ruby/error_highlight] Ensure first_line and last_line are set

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Fixes https://github.com/ruby/error_highlight/pull/58

https://github.com/ruby/error_highlight/commit/9ddc1f31a9
This commit is contained in:
Yusuke Endoh 2025-01-29 17:33:30 +09:00 committed by git
parent be44d5677d
commit e01b4ca1c8
2 changed files with 15 additions and 4 deletions
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10
lib/error_highlight/base.rb
View File

@ -344,6 +344,7 @@ module ErrorHighlight
end
elsif mid.to_s =~ /\A\W+\z/ && lines.match(/\G\s*(#{ Regexp.quote(mid) })=.*\n/, nd_recv.last_column)
@snippet = $` + $&
@beg_lineno = @end_lineno = lineno
@beg_column = $~.begin(1)
@end_column = $~.end(1)
end
@ -582,8 +583,9 @@ module ErrorHighlight
@beg_column = nd_parent.last_column
@end_column = @node.last_column
else
@snippet = @fetch[@node.last_lineno]
fetch_line(@node.last_lineno)
if @snippet[...@node.last_column].match(/#{ Regexp.quote(const) }\z/)
@beg_lineno = @end_lineno = @node.last_lineno
@beg_column = $~.begin(0)
@end_column = $~.end(0)
end
@ -597,7 +599,7 @@ module ErrorHighlight
nd_lhs, op, _nd_rhs = @node.children
*nd_parent_lhs, _const = nd_lhs.children
if @name == op
@snippet = @fetch[nd_lhs.last_lineno]
fetch_line(nd_lhs.last_lineno)
if @snippet.match(/\G\s*(#{ Regexp.quote(op) })=/, nd_lhs.last_column)
@beg_column = $~.begin(1)
@end_column = $~.end(1)
@ -607,12 +609,12 @@ module ErrorHighlight
@end_column = nd_lhs.last_column
if nd_parent_lhs.empty? # example: ::C += 1
if nd_lhs.first_lineno == nd_lhs.last_lineno
@snippet = @fetch[nd_lhs.last_lineno]
fetch_line(nd_lhs.last_lineno)
@beg_column = nd_lhs.first_column
end
else # example: Foo::Bar::C += 1
if nd_parent_lhs.last.last_lineno == nd_lhs.last_lineno
@snippet = @fetch[nd_lhs.last_lineno]
fetch_line(nd_lhs.last_lineno)
@beg_column = nd_parent_lhs.last.last_column
end
end

9
test/error_highlight/test_error_highlight.rb
View File

@ -44,6 +44,15 @@ class ErrorHighlightTest < Test::Unit::TestCase
def assert_error_message(klass, expected_msg, &blk)
omit unless klass < ErrorHighlight::CoreExt
err = assert_raise(klass, &blk)
spot = ErrorHighlight.spot(err)
if spot
assert_kind_of(Integer, spot[:first_lineno])
assert_kind_of(Integer, spot[:first_column])
assert_kind_of(Integer, spot[:last_lineno])
assert_kind_of(Integer, spot[:last_column])
assert_kind_of(String, spot[:snippet])
assert_kind_of(Array, spot[:script_lines])
end
assert_equal(preprocess(expected_msg).chomp, err.detailed_message(highlight: false).sub(/ \((?:NoMethod|Name)Error\)/, ""))
end
else