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# frozen_string_literal: true
require_relative "../test_helper"
module Prism
class LocationTest < TestCase
def test_join
call = Prism.parse_statement("1234 + 567")
receiver = call.receiver
argument = call.arguments.arguments.first
joined = receiver.location.join(argument.location)
assert_equal 0, joined.start_offset
assert_equal 10, joined.length
assert_raise(RuntimeError, "Incompatible locations") do
argument.location.join(receiver.location)
end
other_argument = Prism.parse_statement("1234 + 567").arguments.arguments.first
assert_raise(RuntimeError, "Incompatible sources") do
other_argument.location.join(receiver.location)
end
assert_raise(RuntimeError, "Incompatible sources") do
receiver.location.join(other_argument.location)
end
end
def test_character_offsets
program = Prism.parse("š + š\nš ||= š").value
# first š
location = program.statements.body.first.receiver.location
assert_equal 0, location.start_character_offset
assert_equal 1, location.end_character_offset
assert_equal 0, location.start_character_column
assert_equal 1, location.end_character_column
# second š
location = program.statements.body.first.arguments.arguments.first.location
assert_equal 4, location.start_character_offset
assert_equal 5, location.end_character_offset
assert_equal 4, location.start_character_column
assert_equal 5, location.end_character_column
# first š
location = program.statements.body.last.name_loc
assert_equal 6, location.start_character_offset
assert_equal 7, location.end_character_offset
assert_equal 0, location.start_character_column
assert_equal 1, location.end_character_column
# second š
location = program.statements.body.last.value.location
assert_equal 12, location.start_character_offset
assert_equal 13, location.end_character_offset
assert_equal 6, location.start_character_column
assert_equal 7, location.end_character_column
end
def test_code_units
program = Prism.parse("š + š\nš ||= š").value
# first š
location = program.statements.body.first.receiver.location
assert_equal 0, location.start_code_units_offset(Encoding::UTF_8)
assert_equal 0, location.start_code_units_offset(Encoding::UTF_16LE)
assert_equal 0, location.start_code_units_offset(Encoding::UTF_32LE)
assert_equal 1, location.end_code_units_offset(Encoding::UTF_8)
assert_equal 2, location.end_code_units_offset(Encoding::UTF_16LE)
assert_equal 1, location.end_code_units_offset(Encoding::UTF_32LE)
assert_equal 0, location.start_code_units_column(Encoding::UTF_8)
assert_equal 0, location.start_code_units_column(Encoding::UTF_16LE)
assert_equal 0, location.start_code_units_column(Encoding::UTF_32LE)
assert_equal 1, location.end_code_units_column(Encoding::UTF_8)
assert_equal 2, location.end_code_units_column(Encoding::UTF_16LE)
assert_equal 1, location.end_code_units_column(Encoding::UTF_32LE)
# second š
location = program.statements.body.first.arguments.arguments.first.location
assert_equal 4, location.start_code_units_offset(Encoding::UTF_8)
assert_equal 5, location.start_code_units_offset(Encoding::UTF_16LE)
assert_equal 4, location.start_code_units_offset(Encoding::UTF_32LE)
assert_equal 5, location.end_code_units_offset(Encoding::UTF_8)
assert_equal 7, location.end_code_units_offset(Encoding::UTF_16LE)
assert_equal 5, location.end_code_units_offset(Encoding::UTF_32LE)
assert_equal 4, location.start_code_units_column(Encoding::UTF_8)
assert_equal 5, location.start_code_units_column(Encoding::UTF_16LE)
assert_equal 4, location.start_code_units_column(Encoding::UTF_32LE)
assert_equal 5, location.end_code_units_column(Encoding::UTF_8)
assert_equal 7, location.end_code_units_column(Encoding::UTF_16LE)
assert_equal 5, location.end_code_units_column(Encoding::UTF_32LE)
# first š
location = program.statements.body.last.name_loc
assert_equal 6, location.start_code_units_offset(Encoding::UTF_8)
assert_equal 8, location.start_code_units_offset(Encoding::UTF_16LE)
assert_equal 6, location.start_code_units_offset(Encoding::UTF_32LE)
assert_equal 7, location.end_code_units_offset(Encoding::UTF_8)
assert_equal 10, location.end_code_units_offset(Encoding::UTF_16LE)
assert_equal 7, location.end_code_units_offset(Encoding::UTF_32LE)
assert_equal 0, location.start_code_units_column(Encoding::UTF_8)
assert_equal 0, location.start_code_units_column(Encoding::UTF_16LE)
assert_equal 0, location.start_code_units_column(Encoding::UTF_32LE)
assert_equal 1, location.end_code_units_column(Encoding::UTF_8)
assert_equal 2, location.end_code_units_column(Encoding::UTF_16LE)
assert_equal 1, location.end_code_units_column(Encoding::UTF_32LE)
# second š
location = program.statements.body.last.value.location
assert_equal 12, location.start_code_units_offset(Encoding::UTF_8)
assert_equal 15, location.start_code_units_offset(Encoding::UTF_16LE)
assert_equal 12, location.start_code_units_offset(Encoding::UTF_32LE)
assert_equal 13, location.end_code_units_offset(Encoding::UTF_8)
assert_equal 17, location.end_code_units_offset(Encoding::UTF_16LE)
assert_equal 13, location.end_code_units_offset(Encoding::UTF_32LE)
assert_equal 6, location.start_code_units_column(Encoding::UTF_8)
assert_equal 7, location.start_code_units_column(Encoding::UTF_16LE)
assert_equal 6, location.start_code_units_column(Encoding::UTF_32LE)
assert_equal 7, location.end_code_units_column(Encoding::UTF_8)
assert_equal 9, location.end_code_units_column(Encoding::UTF_16LE)
assert_equal 7, location.end_code_units_column(Encoding::UTF_32LE)
end
def test_cached_code_units
result = Prism.parse("š + š\nš ||= š")
utf8_cache = result.code_units_cache(Encoding::UTF_8)
utf16_cache = result.code_units_cache(Encoding::UTF_16LE)
utf32_cache = result.code_units_cache(Encoding::UTF_32LE)
# first š
location = result.value.statements.body.first.receiver.location
assert_equal 0, location.cached_start_code_units_offset(utf8_cache)
assert_equal 0, location.cached_start_code_units_offset(utf16_cache)
assert_equal 0, location.cached_start_code_units_offset(utf32_cache)
assert_equal 1, location.cached_end_code_units_offset(utf8_cache)
assert_equal 2, location.cached_end_code_units_offset(utf16_cache)
assert_equal 1, location.cached_end_code_units_offset(utf32_cache)
assert_equal 0, location.cached_start_code_units_column(utf8_cache)
assert_equal 0, location.cached_start_code_units_column(utf16_cache)
assert_equal 0, location.cached_start_code_units_column(utf32_cache)
assert_equal 1, location.cached_end_code_units_column(utf8_cache)
assert_equal 2, location.cached_end_code_units_column(utf16_cache)
assert_equal 1, location.cached_end_code_units_column(utf32_cache)
# second š
location = result.value.statements.body.first.arguments.arguments.first.location
assert_equal 4, location.cached_start_code_units_offset(utf8_cache)
assert_equal 5, location.cached_start_code_units_offset(utf16_cache)
assert_equal 4, location.cached_start_code_units_offset(utf32_cache)
assert_equal 5, location.cached_end_code_units_offset(utf8_cache)
assert_equal 7, location.cached_end_code_units_offset(utf16_cache)
assert_equal 5, location.cached_end_code_units_offset(utf32_cache)
assert_equal 4, location.cached_start_code_units_column(utf8_cache)
assert_equal 5, location.cached_start_code_units_column(utf16_cache)
assert_equal 4, location.cached_start_code_units_column(utf32_cache)
assert_equal 5, location.cached_end_code_units_column(utf8_cache)
assert_equal 7, location.cached_end_code_units_column(utf16_cache)
assert_equal 5, location.cached_end_code_units_column(utf32_cache)
end
def test_code_units_binary_valid_utf8
program = Prism.parse(<<~RUBY).value
# -*- encoding: binary -*-
š + š
RUBY
receiver = program.statements.body.first.receiver
assert_equal "š".b.to_sym, receiver.name
location = receiver.location
assert_equal 1, location.end_code_units_column(Encoding::UTF_8)
assert_equal 2, location.end_code_units_column(Encoding::UTF_16LE)
assert_equal 1, location.end_code_units_column(Encoding::UTF_32LE)
end
def test_code_units_binary_invalid_utf8
program = Prism.parse(<<~RUBY).value
# -*- encoding: binary -*-
\x90 + \x90
RUBY
receiver = program.statements.body.first.receiver
assert_equal "\x90".b.to_sym, receiver.name
location = receiver.location
assert_equal 1, location.end_code_units_column(Encoding::UTF_8)
assert_equal 1, location.end_code_units_column(Encoding::UTF_16LE)
assert_equal 1, location.end_code_units_column(Encoding::UTF_32LE)
end
def test_chop
location = Prism.parse("foo").value.location
assert_equal "fo", location.chop.slice
assert_equal "", location.chop.chop.chop.slice
# Check that we don't go negative.
10.times { location = location.chop }
assert_equal "", location.slice
end
def test_slice_lines
method = Prism.parse_statement("\nprivate def foo\nend\n").arguments.arguments.first
assert_equal "private def foo\nend\n", method.slice_lines
end
def test_adjoin
program = Prism.parse("foo.bar = 1").value
location = program.statements.body.first.message_loc
adjoined = location.adjoin("=")
assert_kind_of Location, adjoined
refute_equal location, adjoined
assert_equal 4, adjoined.start_offset
assert_equal 9, adjoined.end_offset
end
end
end
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