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lexer_spec.cr
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require "../../support/syntax"
private def it_lexes(string, type, *, slash_is_regex : Bool? = nil)
it "lexes #{string.inspect}" do
lexer = Lexer.new string
unless (v = slash_is_regex).nil?
lexer.slash_is_regex = v
end
token = lexer.next_token
token.type.should eq(type)
end
end
private def it_lexes(string, type, value)
it "lexes #{string.inspect} as #{type} (#{value})" do
lexer = Lexer.new string
token = lexer.next_token
token.type.should eq(type)
token.value.should eq(value)
end
end
private def it_lexes(string, type, value, number_kind)
it "lexes #{string.inspect} as #{number_kind} (#{value})" do
lexer = Lexer.new string
token = lexer.next_token
token.type.should eq(type)
token.value.should eq(value)
token.number_kind.should eq(number_kind)
end
end
private def it_lexes_many(values, type)
values.each do |value|
it_lexes value, type, value
end
end
private def it_lexes_keywords(keywords)
keywords.each do |keyword|
it_lexes keyword.to_s, :IDENT, keyword
end
end
private def it_lexes_idents(idents)
idents.each do |ident|
it_lexes ident, :IDENT, ident
end
end
private def it_lexes_i32(values)
values.each { |value| it_lexes_number :i32, value }
end
private def it_lexes_i64(values)
values.each { |value| it_lexes_number :i64, value }
end
private def it_lexes_i128(values)
values.each { |value| it_lexes_number :i128, value }
end
private def it_lexes_u64(values)
values.each { |value| it_lexes_number :u64, value }
end
private def it_lexes_f32(values)
values.each { |value| it_lexes_number :f32, value }
end
private def it_lexes_f64(values)
values.each { |value| it_lexes_number :f64, value }
end
private def it_lexes_number(number_kind, value : Array)
it_lexes value[0], :NUMBER, value[1], number_kind
end
private def it_lexes_number(number_kind, value : String)
it_lexes value, :NUMBER, value, number_kind
end
NUM = {
10 => {
"-1000000000000000000000000000000000000000" => "-1000000000000000000000000000000000000000",
"-999999999999999999999999999999999999999" => "-999999999999999999999999999999999999999",
"-2**128 - 1" => "-340282366920938463463374607431768211457",
"-2**128" => "-340282366920938463463374607431768211456",
"-2**128 + 1" => "-340282366920938463463374607431768211455",
"-2**127 - 1" => "-170141183460469231731687303715884105729",
"-2**127" => "-170141183460469231731687303715884105728",
"-2**127 + 1" => "-170141183460469231731687303715884105727",
"-100000000000000000000000000000000000000" => "-100000000000000000000000000000000000000",
"-99999999999999999999999999999999999999" => "-99999999999999999999999999999999999999",
"-100000000000000000000" => "-100000000000000000000",
"-99999999999999999999" => "-99999999999999999999",
"-2**64 - 1" => "-18446744073709551617",
"-2**64" => "-18446744073709551616",
"-2**64 + 1" => "-18446744073709551615",
"-10000000000000000000" => "-10000000000000000000",
"-9999999999999999999" => "-9999999999999999999",
"-2**63 - 1" => "-9223372036854775809",
"-2**63" => "-9223372036854775808",
"-2**63 + 1" => "-9223372036854775807",
"-1000000000000000000" => "-1000000000000000000",
"-999999999999999999" => "-999999999999999999",
"-10000000000" => "-10000000000",
"-9999999999" => "-9999999999",
"-2**32 - 1" => "-4294967297",
"-2**32" => "-4294967296",
"-2**32 + 1" => "-4294967295",
"-2**31 - 1" => "-2147483649",
"-2**31" => "-2147483648",
"-2**31 + 1" => "-2147483647",
"-1000000000" => "-1000000000",
"-999999999" => "-999999999",
"-2**16 - 1" => "-65537",
"-2**16" => "-65536",
"-2**16 + 1" => "-65535",
"-2**15 - 1" => "-32769",
"-2**15" => "-32768",
"-2**15 + 1" => "-32767",
"-2**8 - 1" => "-257",
"-2**8" => "-256",
"-2**8 + 1" => "-255",
"-2**7 - 1" => "-129",
"-2**7" => "-128",
"-2**7 + 1" => "-127",
"-1" => "-1",
"0" => "0",
"1" => "1",
"2**7 - 1" => "127",
"2**7" => "128",
"2**7 + 1" => "129",
"2**8 - 1" => "255",
"2**8" => "256",
"2**8 + 1" => "257",
"2**15 - 1" => "32767",
"2**15" => "32768",
"2**15 + 1" => "32769",
"2**16 - 1" => "65535",
"2**16" => "65536",
"2**16 + 1" => "65537",
"999999999" => "999999999",
"1000000000" => "1000000000",
"2**31 - 1" => "2147483647",
"2**31" => "2147483648",
"2**31 + 1" => "2147483649",
"2**32 - 1" => "4294967295",
"2**32" => "4294967296",
"2**32 + 1" => "4294967297",
"9999999999" => "9999999999",
"10000000000" => "10000000000",
"999999999999999999" => "999999999999999999",
"1000000000000000000" => "1000000000000000000",
"2**63 - 1" => "9223372036854775807",
"2**63" => "9223372036854775808",
"2**63 + 1" => "9223372036854775809",
"9999999999999999999" => "9999999999999999999",
"10000000000000000000" => "10000000000000000000",
"2**64 - 1" => "18446744073709551615",
"2**64" => "18446744073709551616",
"2**64 + 1" => "18446744073709551617",
"99999999999999999999" => "99999999999999999999",
"100000000000000000000" => "100000000000000000000",
"99999999999999999999999999999999999999" => "99999999999999999999999999999999999999",
"100000000000000000000000000000000000000" => "100000000000000000000000000000000000000",
"2**127 - 1" => "170141183460469231731687303715884105727",
"2**127" => "170141183460469231731687303715884105728",
"2**127 + 1" => "170141183460469231731687303715884105729",
"2**128 - 1" => "340282366920938463463374607431768211455",
"2**128" => "340282366920938463463374607431768211456",
"2**128 + 1" => "340282366920938463463374607431768211457",
"999999999999999999999999999999999999999" => "999999999999999999999999999999999999999",
"1000000000000000000000000000000000000000" => "1000000000000000000000000000000000000000",
},
16 => {
"-1000000000000000000000000000000000000000" => "-0x2f050fe938943acc45f65568000000000",
"-999999999999999999999999999999999999999" => "-0x2f050fe938943acc45f65567fffffffff",
"-2**128 - 1" => "-0x100000000000000000000000000000001",
"-2**128" => "-0x100000000000000000000000000000000",
"-2**128 + 1" => "-0xffffffffffffffffffffffffffffffff",
"-2**127 - 1" => "-0x80000000000000000000000000000001",
"-2**127" => "-0x80000000000000000000000000000000",
"-2**127 + 1" => "-0x7fffffffffffffffffffffffffffffff",
"-100000000000000000000000000000000000000" => "-0x4b3b4ca85a86c47a098a224000000000",
"-99999999999999999999999999999999999999" => "-0x4b3b4ca85a86c47a098a223fffffffff",
"-100000000000000000000" => "-0x56bc75e2d63100000",
"-99999999999999999999" => "-0x56bc75e2d630fffff",
"-2**64 - 1" => "-0x10000000000000001",
"-2**64" => "-0x10000000000000000",
"-2**64 + 1" => "-0xffffffffffffffff",
"-10000000000000000000" => "-0x8ac7230489e80000",
"-9999999999999999999" => "-0x8ac7230489e7ffff",
"-2**63 - 1" => "-0x8000000000000001",
"-2**63" => "-0x8000000000000000",
"-2**63 + 1" => "-0x7fffffffffffffff",
"-1000000000000000000" => "-0xde0b6b3a7640000",
"-999999999999999999" => "-0xde0b6b3a763ffff",
"-10000000000" => "-0x2540be400",
"-9999999999" => "-0x2540be3ff",
"-2**32 - 1" => "-0x100000001",
"-2**32" => "-0x100000000",
"-2**32 + 1" => "-0xffffffff",
"-2**31 - 1" => "-0x80000001",
"-2**31" => "-0x80000000",
"-2**31 + 1" => "-0x7fffffff",
"-1000000000" => "-0x3b9aca00",
"-999999999" => "-0x3b9ac9ff",
"-2**16 - 1" => "-0x10001",
"-2**16" => "-0x10000",
"-2**16 + 1" => "-0xffff",
"-2**15 - 1" => "-0x8001",
"-2**15" => "-0x8000",
"-2**15 + 1" => "-0x7fff",
"-2**8 - 1" => "-0x101",
"-2**8" => "-0x100",
"-2**8 + 1" => "-0xff",
"-2**7 - 1" => "-0x81",
"-2**7" => "-0x80",
"-2**7 + 1" => "-0x7f",
"-1" => "-0x1",
"0" => "0x0",
"1" => "0x1",
"2**7 - 1" => "0x7f",
"2**7" => "0x80",
"2**7 + 1" => "0x81",
"2**8 - 1" => "0xff",
"2**8" => "0x100",
"2**8 + 1" => "0x101",
"2**15 - 1" => "0x7fff",
"2**15" => "0x8000",
"2**15 + 1" => "0x8001",
"2**16 - 1" => "0xffff",
"2**16" => "0x10000",
"2**16 + 1" => "0x10001",
"999999999" => "0x3b9ac9ff",
"1000000000" => "0x3b9aca00",
"2**31 - 1" => "0x7fffffff",
"2**31" => "0x80000000",
"2**31 + 1" => "0x80000001",
"2**32 - 1" => "0xffffffff",
"2**32" => "0x100000000",
"2**32 + 1" => "0x100000001",
"9999999999" => "0x2540be3ff",
"10000000000" => "0x2540be400",
"999999999999999999" => "0xde0b6b3a763ffff",
"1000000000000000000" => "0xde0b6b3a7640000",
"2**63 - 1" => "0x7fffffffffffffff",
"2**63" => "0x8000000000000000",
"2**63 + 1" => "0x8000000000000001",
"9999999999999999999" => "0x8ac7230489e7ffff",
"10000000000000000000" => "0x8ac7230489e80000",
"2**64 - 1" => "0xffffffffffffffff",
"2**64" => "0x10000000000000000",
"2**64 + 1" => "0x10000000000000001",
"99999999999999999999" => "0x56bc75e2d630fffff",
"100000000000000000000" => "0x56bc75e2d63100000",
"99999999999999999999999999999999999999" => "0x4b3b4ca85a86c47a098a223fffffffff",
"100000000000000000000000000000000000000" => "0x4b3b4ca85a86c47a098a224000000000",
"2**127 - 1" => "0x7fffffffffffffffffffffffffffffff",
"2**127" => "0x80000000000000000000000000000000",
"2**127 + 1" => "0x80000000000000000000000000000001",
"2**128 - 1" => "0xffffffffffffffffffffffffffffffff",
"2**128" => "0x100000000000000000000000000000000",
"2**128 + 1" => "0x100000000000000000000000000000001",
"999999999999999999999999999999999999999" => "0x2f050fe938943acc45f65567fffffffff",
"1000000000000000000000000000000000000000" => "0x2f050fe938943acc45f65568000000000",
},
8 => {
"-1000000000000000000000000000000000000000" => "-0o13602417722342241654610575452550000000000000",
"-999999999999999999999999999999999999999" => "-0o13602417722342241654610575452547777777777777",
"-2**128 - 1" => "-0o4000000000000000000000000000000000000000001",
"-2**128" => "-0o4000000000000000000000000000000000000000000",
"-2**128 + 1" => "-0o3777777777777777777777777777777777777777777",
"-2**127 - 1" => "-0o2000000000000000000000000000000000000000001",
"-2**127" => "-0o2000000000000000000000000000000000000000000",
"-2**127 + 1" => "-0o1777777777777777777777777777777777777777777",
"-100000000000000000000000000000000000000" => "-0o1131664625026503304364046121044000000000000",
"-99999999999999999999999999999999999999" => "-0o1131664625026503304364046121043777777777777",
"-100000000000000000000" => "-0o12657072742654304000000",
"-99999999999999999999" => "-0o12657072742654303777777",
"-2**64 - 1" => "-0o2000000000000000000001",
"-2**64" => "-0o2000000000000000000000",
"-2**64 + 1" => "-0o1777777777777777777777",
"-10000000000000000000" => "-0o1053071060221172000000",
"-9999999999999999999" => "-0o1053071060221171777777",
"-2**63 - 1" => "-0o1000000000000000000001",
"-2**63" => "-0o1000000000000000000000",
"-2**63 + 1" => "-0o777777777777777777777",
"-1000000000000000000" => "-0o67405553164731000000",
"-999999999999999999" => "-0o67405553164730777777",
"-10000000000" => "-0o112402762000",
"-9999999999" => "-0o112402761777",
"-2**32 - 1" => "-0o40000000001",
"-2**32" => "-0o40000000000",
"-2**32 + 1" => "-0o37777777777",
"-2**31 - 1" => "-0o20000000001",
"-2**31" => "-0o20000000000",
"-2**31 + 1" => "-0o17777777777",
"-1000000000" => "-0o7346545000",
"-999999999" => "-0o7346544777",
"-2**16 - 1" => "-0o200001",
"-2**16" => "-0o200000",
"-2**16 + 1" => "-0o177777",
"-2**15 - 1" => "-0o100001",
"-2**15" => "-0o100000",
"-2**15 + 1" => "-0o77777",
"-2**8 - 1" => "-0o401",
"-2**8" => "-0o400",
"-2**8 + 1" => "-0o377",
"-2**7 - 1" => "-0o201",
"-2**7" => "-0o200",
"-2**7 + 1" => "-0o177",
"-1" => "-0o1",
"0" => "0o0",
"1" => "0o1",
"2**7 - 1" => "0o177",
"2**7" => "0o200",
"2**7 + 1" => "0o201",
"2**8 - 1" => "0o377",
"2**8" => "0o400",
"2**8 + 1" => "0o401",
"2**15 - 1" => "0o77777",
"2**15" => "0o100000",
"2**15 + 1" => "0o100001",
"2**16 - 1" => "0o177777",
"2**16" => "0o200000",
"2**16 + 1" => "0o200001",
"999999999" => "0o7346544777",
"1000000000" => "0o7346545000",
"2**31 - 1" => "0o17777777777",
"2**31" => "0o20000000000",
"2**31 + 1" => "0o20000000001",
"2**32 - 1" => "0o37777777777",
"2**32" => "0o40000000000",
"2**32 + 1" => "0o40000000001",
"9999999999" => "0o112402761777",
"10000000000" => "0o112402762000",
"999999999999999999" => "0o67405553164730777777",
"1000000000000000000" => "0o67405553164731000000",
"2**63 - 1" => "0o777777777777777777777",
"2**63" => "0o1000000000000000000000",
"2**63 + 1" => "0o1000000000000000000001",
"9999999999999999999" => "0o1053071060221171777777",
"10000000000000000000" => "0o1053071060221172000000",
"2**64 - 1" => "0o1777777777777777777777",
"2**64" => "0o2000000000000000000000",
"2**64 + 1" => "0o2000000000000000000001",
"99999999999999999999" => "0o12657072742654303777777",
"100000000000000000000" => "0o12657072742654304000000",
"99999999999999999999999999999999999999" => "0o1131664625026503304364046121043777777777777",
"100000000000000000000000000000000000000" => "0o1131664625026503304364046121044000000000000",
"2**127 - 1" => "0o1777777777777777777777777777777777777777777",
"2**127" => "0o2000000000000000000000000000000000000000000",
"2**127 + 1" => "0o2000000000000000000000000000000000000000001",
"2**128 - 1" => "0o3777777777777777777777777777777777777777777",
"2**128" => "0o4000000000000000000000000000000000000000000",
"2**128 + 1" => "0o4000000000000000000000000000000000000000001",
"999999999999999999999999999999999999999" => "0o13602417722342241654610575452547777777777777",
"1000000000000000000000000000000000000000" => "0o13602417722342241654610575452550000000000000",
},
2 => {
"-1000000000000000000000000000000000000000" => "-0b1011110000010100001111111010010011100010010100001110101100110001000101111101100101010101101000000000000000000000000000000000000000",
"-999999999999999999999999999999999999999" => "-0b1011110000010100001111111010010011100010010100001110101100110001000101111101100101010101100111111111111111111111111111111111111111",
"-2**128 - 1" => "-0b100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"-2**128" => "-0b100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"-2**128 + 1" => "-0b11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
"-2**127 - 1" => "-0b10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"-2**127" => "-0b10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"-2**127 + 1" => "-0b1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
"-100000000000000000000000000000000000000" => "-0b1001011001110110100110010101000010110101000011011000100011110100000100110001010001000100100000000000000000000000000000000000000",
"-99999999999999999999999999999999999999" => "-0b1001011001110110100110010101000010110101000011011000100011110100000100110001010001000100011111111111111111111111111111111111111",
"-100000000000000000000" => "-0b1010110101111000111010111100010110101100011000100000000000000000000",
"-99999999999999999999" => "-0b1010110101111000111010111100010110101100011000011111111111111111111",
"-2**64 - 1" => "-0b10000000000000000000000000000000000000000000000000000000000000001",
"-2**64" => "-0b10000000000000000000000000000000000000000000000000000000000000000",
"-2**64 + 1" => "-0b1111111111111111111111111111111111111111111111111111111111111111",
"-10000000000000000000" => "-0b1000101011000111001000110000010010001001111010000000000000000000",
"-9999999999999999999" => "-0b1000101011000111001000110000010010001001111001111111111111111111",
"-2**63 - 1" => "-0b1000000000000000000000000000000000000000000000000000000000000001",
"-2**63" => "-0b1000000000000000000000000000000000000000000000000000000000000000",
"-2**63 + 1" => "-0b111111111111111111111111111111111111111111111111111111111111111",
"-1000000000000000000" => "-0b110111100000101101101011001110100111011001000000000000000000",
"-999999999999999999" => "-0b110111100000101101101011001110100111011000111111111111111111",
"-10000000000" => "-0b1001010100000010111110010000000000",
"-9999999999" => "-0b1001010100000010111110001111111111",
"-2**32 - 1" => "-0b100000000000000000000000000000001",
"-2**32" => "-0b100000000000000000000000000000000",
"-2**32 + 1" => "-0b11111111111111111111111111111111",
"-2**31 - 1" => "-0b10000000000000000000000000000001",
"-2**31" => "-0b10000000000000000000000000000000",
"-2**31 + 1" => "-0b1111111111111111111111111111111",
"-1000000000" => "-0b111011100110101100101000000000",
"-999999999" => "-0b111011100110101100100111111111",
"-2**16 - 1" => "-0b10000000000000001",
"-2**16" => "-0b10000000000000000",
"-2**16 + 1" => "-0b1111111111111111",
"-2**15 - 1" => "-0b1000000000000001",
"-2**15" => "-0b1000000000000000",
"-2**15 + 1" => "-0b111111111111111",
"-2**8 - 1" => "-0b100000001",
"-2**8" => "-0b100000000",
"-2**8 + 1" => "-0b11111111",
"-2**7 - 1" => "-0b10000001",
"-2**7" => "-0b10000000",
"-2**7 + 1" => "-0b1111111",
"-1" => "-0b1",
"0" => "0b0",
"1" => "0b1",
"2**7 - 1" => "0b1111111",
"2**7" => "0b10000000",
"2**7 + 1" => "0b10000001",
"2**8 - 1" => "0b11111111",
"2**8" => "0b100000000",
"2**8 + 1" => "0b100000001",
"2**15 - 1" => "0b111111111111111",
"2**15" => "0b1000000000000000",
"2**15 + 1" => "0b1000000000000001",
"2**16 - 1" => "0b1111111111111111",
"2**16" => "0b10000000000000000",
"2**16 + 1" => "0b10000000000000001",
"999999999" => "0b111011100110101100100111111111",
"1000000000" => "0b111011100110101100101000000000",
"2**31 - 1" => "0b1111111111111111111111111111111",
"2**31" => "0b10000000000000000000000000000000",
"2**31 + 1" => "0b10000000000000000000000000000001",
"2**32 - 1" => "0b11111111111111111111111111111111",
"2**32" => "0b100000000000000000000000000000000",
"2**32 + 1" => "0b100000000000000000000000000000001",
"9999999999" => "0b1001010100000010111110001111111111",
"10000000000" => "0b1001010100000010111110010000000000",
"999999999999999999" => "0b110111100000101101101011001110100111011000111111111111111111",
"1000000000000000000" => "0b110111100000101101101011001110100111011001000000000000000000",
"2**63 - 1" => "0b111111111111111111111111111111111111111111111111111111111111111",
"2**63" => "0b1000000000000000000000000000000000000000000000000000000000000000",
"2**63 + 1" => "0b1000000000000000000000000000000000000000000000000000000000000001",
"9999999999999999999" => "0b1000101011000111001000110000010010001001111001111111111111111111",
"10000000000000000000" => "0b1000101011000111001000110000010010001001111010000000000000000000",
"2**64 - 1" => "0b1111111111111111111111111111111111111111111111111111111111111111",
"2**64" => "0b10000000000000000000000000000000000000000000000000000000000000000",
"2**64 + 1" => "0b10000000000000000000000000000000000000000000000000000000000000001",
"99999999999999999999" => "0b1010110101111000111010111100010110101100011000011111111111111111111",
"100000000000000000000" => "0b1010110101111000111010111100010110101100011000100000000000000000000",
"99999999999999999999999999999999999999" => "0b1001011001110110100110010101000010110101000011011000100011110100000100110001010001000100011111111111111111111111111111111111111",
"100000000000000000000000000000000000000" => "0b1001011001110110100110010101000010110101000011011000100011110100000100110001010001000100100000000000000000000000000000000000000",
"2**127 - 1" => "0b1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
"2**127" => "0b10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"2**127 + 1" => "0b10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"2**128 - 1" => "0b11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
"2**128" => "0b100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"2**128 + 1" => "0b100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"999999999999999999999999999999999999999" => "0b1011110000010100001111111010010011100010010100001110101100110001000101111101100101010101100111111111111111111111111111111111111111",
"1000000000000000000000000000000000000000" => "0b1011110000010100001111111010010011100010010100001110101100110001000101111101100101010101101000000000000000000000000000000000000000",
},
}
def test_cases(suffix : String, cases : Array({String?, String?, String | Symbol}))
describe suffix do
NUM.each_value do |items|
exprs = items.keys
cases.each do |range_begin, range_end, outcome|
exprs[(range_begin ? exprs.index(range_begin).not_nil! : 0)..(range_end ? exprs.index(range_end).not_nil! : -1)].each do |expr|
item = items[expr] + suffix
if outcome.is_a?(Symbol)
it_lexes_number outcome, [item, NUM[10][expr]]
else
assert_syntax_error item, outcome.gsub("{}", items[expr])
end
end
end
end
end
end
describe "all", focus: true do
test_cases("", [
{nil, "-2**127 - 1", "{} doesn't fit in an Int64"},
{"-2**127", "-2**63 - 1", "{} doesn't fit in an Int64, try using the suffix i128"},
{"-2**63", "-2**31 - 1", :i64},
{"-2**31", "2**31 - 1", :i32},
{"2**31", "2**63 - 1", :i64},
{"2**63", "2**64 - 1", :u64},
{"2**64", "2**127 - 1", "{} doesn't fit in an UInt64, try using the suffix i128"},
{"2**127", "2**128 - 1", "{} doesn't fit in an UInt64, try using the suffix u128"},
{"2**128", nil, "{} doesn't fit in an UInt64"},
])
[:i8, :i16, :i32, :i64, :i128].each do |suf|
size = suf.to_s[1..].to_i
test_cases(suf.to_s, [
{nil, "-2**#{size - 1} - 1", "{} doesn't fit in an Int#{size}"},
{"-2**#{size - 1}", "2**#{size - 1} - 1", suf},
{"2**#{size - 1}", nil, "{} doesn't fit in an Int#{size}"},
])
end
[:u8, :u16, :u32, :u64, :u128].each do |suf|
size = suf.to_s[1..].to_i
test_cases(suf.to_s, [
{nil, "-1", "Invalid negative value {} for UInt#{size}"},
{"0", "2**#{size} - 1", suf},
{"2**#{size}", nil, "{} doesn't fit in an UInt#{size}"},
])
end
end
private def it_lexes_char(string, value)
it "lexes #{string}" do
lexer = Lexer.new string
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.as(Char).should eq(value)
end
end
private def it_lexes_string(string, value)
it "lexes #{string}" do
lexer = Lexer.new string
token = lexer.next_token
token.type.should eq(:DELIMITER_START)
token = lexer.next_string_token(token.delimiter_state)
token.value.should eq(value)
end
end
private def it_lexes_operators(ops)
ops.each do |op|
it_lexes op.to_s, op, slash_is_regex: false
end
end
private def it_lexes_const(value)
it_lexes value, :CONST, value
end
private def it_lexes_instance_var(value)
it_lexes value, :INSTANCE_VAR, value
end
private def it_lexes_class_var(value)
it_lexes value, :CLASS_VAR, value
end
private def it_lexes_globals(globals)
it_lexes_many globals, :GLOBAL
end
private def it_lexes_symbols(symbols)
symbols.each do |symbol|
value = symbol[1, symbol.size - 1]
value = value[1, value.size - 2] if value.starts_with?('"')
it_lexes symbol, :SYMBOL, value
end
end
private def it_lexes_global_match_data_index(globals)
globals.each do |global|
it_lexes global, :GLOBAL_MATCH_DATA_INDEX, global[1, global.size - 1]
end
end
describe "Lexer" do
it_lexes "", :EOF
it_lexes " ", :SPACE
it_lexes "\t", :SPACE
it_lexes "\n", :NEWLINE
it_lexes "\n\n\n", :NEWLINE
it_lexes "_", :UNDERSCORE
it_lexes_keywords [:def, :if, :else, :elsif, :end, :true, :false, :class, :module, :include,
:extend, :while, :until, :nil, :do, :yield, :return, :unless, :next, :break,
:begin, :lib, :fun, :type, :struct, :union, :enum, :macro, :out, :require,
:case, :when, :select, :then, :of, :abstract, :rescue, :ensure, :is_a?, :alias,
:pointerof, :sizeof, :instance_sizeof, :offsetof, :as, :as?, :typeof, :for, :in,
:with, :self, :super, :private, :protected, :asm, :uninitialized, :nil?,
:annotation, :verbatim]
it_lexes_idents ["ident", "something", "with_underscores", "with_1", "foo?", "bar!", "fooBar",
"❨╯°□°❩╯︵┻━┻"]
it_lexes_idents ["def?", "if?", "else?", "elsif?", "end?", "true?", "false?", "class?", "while?",
"do?", "yield?", "return?", "unless?", "next?", "break?", "begin?"]
it_lexes_idents ["def!", "if!", "else!", "elsif!", "end!", "true!", "false!", "class!", "while!",
"nil!", "do!", "yield!", "return!", "unless!", "next!", "break!", "begin!"]
it_lexes_i32 ["1", ["0i32", "0"], ["1hello", "1"], "+1", "-1", "1234", "+1234", "-1234",
["1.foo", "1"], ["1_000", "1000"], ["100_000", "100000"]]
it_lexes_i64 [["1i64", "1"], ["1_i64", "1"], ["1i64hello", "1"], ["+1_i64", "+1"], ["-1_i64", "-1"]]
it_lexes_i128 [["1i128", "1"], ["1_i128", "1"], ["1i128hello", "1"], ["+1_i128", "+1"], ["-1_i128", "-1"]]
it_lexes_f32 [["0f32", "0"], ["0_f32", "0"], ["1.0f32", "1.0"], ["1.0f32hello", "1.0"],
["+1.0f32", "+1.0"], ["-1.0f32", "-1.0"], ["-0.0f32", "-0.0"], ["1_234.567_890_f32", "1234.567890"]]
it_lexes_f64 ["1.0", ["1.0hello", "1.0"], "+1.0", "-1.0", ["1_234.567_890", "1234.567890"]]
it_lexes_f32 [["1e+23_f32", "1e+23"], ["1.2e+23_f32", "1.2e+23"]]
it_lexes_f64 ["1e23", "1e-23", "1e+23", "1.2e+23", ["1e23f64", "1e23"], ["1.2e+23_f64", "1.2e+23"], "0e40", "2e01", ["2_e2", "2e2"], "1E40"]
it_lexes_number :i8, ["1i8", "1"]
it_lexes_number :i8, ["1_i8", "1"]
it_lexes_number :i16, ["1i16", "1"]
it_lexes_number :i16, ["1_i16", "1"]
it_lexes_number :i32, ["1i32", "1"]
it_lexes_number :i32, ["1_i32", "1"]
it_lexes_number :i64, ["1i64", "1"]
it_lexes_number :i64, ["1_i64", "1"]
it_lexes_number :u8, ["1u8", "1"]
it_lexes_number :u8, ["1_u8", "1"]
it_lexes_number :u16, ["1u16", "1"]
it_lexes_number :u16, ["1_u16", "1"]
it_lexes_number :u32, ["1u32", "1"]
it_lexes_number :u32, ["1_u32", "1"]
it_lexes_number :u64, ["1u64", "1"]
it_lexes_number :u64, ["1_u64", "1"]
it_lexes_number :u128, ["1u128", "1"]
it_lexes_number :u128, ["1_u128", "1"]
it_lexes_number :f32, ["1f32", "1"]
it_lexes_number :f32, ["1.0f32", "1.0"]
it_lexes_number :f64, ["1f64", "1"]
it_lexes_number :f64, ["1.0f64", "1.0"]
it_lexes_number :i32, ["0b1010", "10"]
it_lexes_number :i32, ["+0b1010", "+10"]
it_lexes_number :i32, ["-0b1010", "-10"]
it_lexes_number :i32, ["0xFFFF", "65535"]
it_lexes_number :i32, ["0xabcdef", "11259375"]
it_lexes_number :i32, ["+0xFFFF", "+65535"]
it_lexes_number :i32, ["-0xFFFF", "-65535"]
it_lexes_number :i64, ["0x80000001", "2147483649"]
it_lexes_number :i64, ["-0x80000001", "-2147483649"]
it_lexes_number :i64, ["0xFFFFFFFF", "4294967295"]
it_lexes_number :i64, ["-0xFFFFFFFF", "-4294967295"]
it_lexes_number :u64, ["0xFFFF_u64", "65535"]
it_lexes_i32 [["0o123", "83"], ["-0o123", "-83"], ["+0o123", "+83"]]
it_lexes_f64 [["0.5", "0.5"], ["+0.5", "+0.5"], ["-0.5", "-0.5"]]
it_lexes_i64 [["0o123_i64", "83"], ["0x1_i64", "1"], ["0b1_i64", "1"]]
it_lexes_i64 ["2147483648", "-2147483649"]
it_lexes_i64 [["2147483648.foo", "2147483648"]]
it_lexes_u64 ["18446744073709551615", "14146167139683460000", "9223372036854775808"]
it_lexes_number :u64, ["10000000000000000000_u64", "10000000000000000000"]
it_lexes_i64 [["0x3fffffffffffffff", "4611686018427387903"]]
it_lexes_i64 [["-0x8000000000000000_i64", "-9223372036854775808"]]
it_lexes_i64 ["-9223372036854775808", "9223372036854775807"]
it_lexes_u64 [["0xffffffffffffffff", "18446744073709551615"]]
it_lexes_number :i32, ["+0", "+0"]
it_lexes_number :i32, ["-0", "-0"]
it_lexes_number :i32, ["0", "0"]
it_lexes_number :i32, ["0_i32", "0"]
it_lexes_number :i8, ["0i8", "0"]
it_lexes_char "'a'", 'a'
it_lexes_char "'\\a'", '\a'
it_lexes_char "'\\b'", '\b'
it_lexes_char "'\\n'", '\n'
it_lexes_char "'\\t'", '\t'
it_lexes_char "'\\v'", '\v'
it_lexes_char "'\\f'", '\f'
it_lexes_char "'\\r'", '\r'
it_lexes_char "'\\0'", '\0'
it_lexes_char "'\\0'", '\0'
it_lexes_char "'\\''", '\''
it_lexes_char "'\\\\'", '\\'
assert_syntax_error "'", "unterminated char literal"
assert_syntax_error "'\\", "unterminated char literal"
it_lexes_operators [:"=", :"<", :"<=", :">", :">=", :"+", :"-", :"*", :"/", :"//", :"(", :")",
:"==", :"!=", :"=~", :"!", :",", :".", :"..", :"...", :"&&", :"||",
:"|", :"{", :"}", :"?", :":", :"+=", :"-=", :"*=", :"/=", :"%=", :"//=", :"&=",
:"|=", :"^=", :"**=", :"<<", :">>", :"%", :"&", :"|", :"^", :"**", :"<<=",
:">>=", :"~", :"[]", :"[]=", :"[", :"]", :"::", :"<=>", :"=>", :"||=",
:"&&=", :"===", :";", :"->", :"[]?", :"{%", :"{{", :"%}", :"@[", :"!~",
:"&+", :"&-", :"&*", :"&**", :"&+=", :"&-=", :"&*="]
it_lexes "!@foo", :"!"
it_lexes "+@foo", :"+"
it_lexes "-@foo", :"-"
it_lexes "&+@foo", :"&+"
it_lexes "&-@foo", :"&-"
it_lexes_const "Foo"
it_lexes_instance_var "@foo"
it_lexes_class_var "@@foo"
it_lexes_globals ["$foo", "$FOO", "$_foo", "$foo123"]
it_lexes_symbols [":foo", ":foo!", ":foo?", ":foo=", ":\"foo\"", ":かたな", ":+", ":-", ":*", ":/", "://",
":==", ":<", ":<=", ":>", ":>=", ":!", ":!=", ":=~", ":!~", ":&", ":|",
":^", ":~", ":**", ":>>", ":<<", ":%", ":[]", ":[]?", ":[]=", ":<=>", ":===",
":&+", ":&-", ":&*", ":&**"]
it_lexes_global_match_data_index ["$1", "$10", "$1?", "$23?"]
it_lexes "$~", :"$~"
it_lexes "$?", :"$?"
assert_syntax_error "128_i8", "128 doesn't fit in an Int8"
assert_syntax_error "-129_i8", "-129 doesn't fit in an Int8"
assert_syntax_error "256_u8", "256 doesn't fit in an UInt8"
assert_syntax_error "-1_u8", "Invalid negative value -1 for UInt8"
assert_syntax_error "32768_i16", "32768 doesn't fit in an Int16"
assert_syntax_error "-32769_i16", "-32769 doesn't fit in an Int16"
assert_syntax_error "65536_u16", "65536 doesn't fit in an UInt16"
assert_syntax_error "-1_u16", "Invalid negative value -1 for UInt16"
assert_syntax_error "2147483648_i32", "2147483648 doesn't fit in an Int32"
assert_syntax_error "-2147483649_i32", "-2147483649 doesn't fit in an Int32"
assert_syntax_error "4294967296_u32", "4294967296 doesn't fit in an UInt32"
assert_syntax_error "-1_u32", "Invalid negative value -1 for UInt32"
assert_syntax_error "9223372036854775808_i64", "9223372036854775808 doesn't fit in an Int64"
assert_syntax_error "-9223372036854775809_i64", "-9223372036854775809 doesn't fit in an Int64"
assert_syntax_error "118446744073709551616_u64", "118446744073709551616 doesn't fit in an UInt64"
assert_syntax_error "18446744073709551616_u64", "18446744073709551616 doesn't fit in an UInt64"
assert_syntax_error "-1_u64", "Invalid negative value -1 for UInt64"
assert_syntax_error "-0_u64", "Invalid negative value -0 for UInt64"
assert_syntax_error "-0u64", "Invalid negative value -0 for UInt64"
assert_syntax_error "18446744073709551616_i32", "18446744073709551616 doesn't fit in an Int32"
assert_syntax_error "9999999999999999999_i32", "9999999999999999999 doesn't fit in an Int32"
assert_syntax_error "-9999999999999999999", "-9999999999999999999 doesn't fit in an Int64, try using the suffix i128"
assert_syntax_error "-99999999999999999999", "-99999999999999999999 doesn't fit in an Int64, try using the suffix i128"
assert_syntax_error "-11111111111111111111", "-11111111111111111111 doesn't fit in an Int64, try using the suffix i128"
assert_syntax_error "-9223372036854775809", "-9223372036854775809 doesn't fit in an Int64, try using the suffix i128"
assert_syntax_error "118446744073709551616", "118446744073709551616 doesn't fit in an UInt64, try using the suffix i128"
assert_syntax_error "18446744073709551616", "18446744073709551616 doesn't fit in an UInt64, try using the suffix i128"
assert_syntax_error "340282366920938463463374607431768211456", "340282366920938463463374607431768211456 doesn't fit in an UInt64"
assert_syntax_error "-170141183460469231731687303715884105729", "-170141183460469231731687303715884105729 doesn't fit in an Int64"
assert_syntax_error "-999999999999999999999999999999999999999", "-999999999999999999999999999999999999999 doesn't fit in an Int64"
assert_syntax_error "0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", "0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF doesn't fit in an UInt64"
assert_syntax_error "0o7777777777777777777777777777777777777777777777777", "0o7777777777777777777777777777777777777777777777777 doesn't fit in an UInt64"
assert_syntax_error "-0o7777777777777777777777777777777777777777777777777", "-0o7777777777777777777777777777777777777777777777777 doesn't fit in an Int64"
it_lexes_number :i128, ["9223372036854775808_i128", "9223372036854775808"]
it_lexes_number :i128, ["-9223372036854775809_i128", "-9223372036854775809"]
it_lexes_number :u128, ["118446744073709551616_u128", "118446744073709551616"]
it_lexes_number :u128, ["18446744073709551616_u128", "18446744073709551616"]
it_lexes_number :i128, ["170141183460469231731687303715884105727_i128", "170141183460469231731687303715884105727"]
it_lexes_number :u128, ["170141183460469231731687303715884105728_u128", "170141183460469231731687303715884105728"]
it_lexes_number :u128, ["340282366920938463463374607431768211455_u128", "340282366920938463463374607431768211455"]
it_lexes_number :u128, ["0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF_u128", "340282366920938463463374607431768211455"]
it_lexes_number :i128, ["-0x80000000000000000000000000000000_i128", "-170141183460469231731687303715884105728"]
assert_syntax_error "0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", "0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF doesn't fit in an UInt64, try using the suffix u128"
assert_syntax_error "-0x80000000000000000000000000000000", "-0x80000000000000000000000000000000 doesn't fit in an Int64, try using the suffix i128"
assert_syntax_error "-0x80000000000000000000000000000001", "-0x80000000000000000000000000000001 doesn't fit in an Int64"
assert_syntax_error "-1_u128", "Invalid negative value -1 for UInt128"
assert_syntax_error "1__1", "consecutive underscores in numbers aren't allowed"
assert_syntax_error "-3_", "trailing '_' in number"
assert_syntax_error "0b_10", "unexpected '_' in number"
assert_syntax_error "10e_10", "unexpected '_' in number"
assert_syntax_error "1_.1", "unexpected '_' in number"
assert_syntax_error "-0e_12", "unexpected '_' in number"
assert_syntax_error "0_12", "octal constants should be prefixed with 0o"
assert_syntax_error "0123", "octal constants should be prefixed with 0o"
assert_syntax_error "00", "octal constants should be prefixed with 0o"
assert_syntax_error "01_i64", "octal constants should be prefixed with 0o"
assert_syntax_error "0xFF_i8", "0xFF doesn't fit in an Int8"
assert_syntax_error "0o200_i8", "0o200 doesn't fit in an Int8"
assert_syntax_error "0b10000000_i8", "0b10000000 doesn't fit in an Int8"
# 2**31 - 1
it_lexes_i32 [["0x7fffffff", "2147483647"], ["0o17777777777", "2147483647"], ["0b1111111111111111111111111111111", "2147483647"]]
it_lexes_i32 [["0x7fffffff_i32", "2147483647"], ["0o17777777777_i32", "2147483647"], ["0b1111111111111111111111111111111_i32", "2147483647"]]
# 2**32 - 1
it_lexes_i64 [["0xffffffff", "4294967295"], ["0o37777777777", "4294967295"], ["0b11111111111111111111111111111111", "4294967295"]]
# 2**32
it_lexes_i64 [["0x100000000", "4294967296"], ["0o40000000000", "4294967296"], ["0b100000000000000000000000000000000", "4294967296"]]
assert_syntax_error "0x100000000i32", "0x100000000 doesn't fit in an Int32"
assert_syntax_error "0o40000000000i32", "0o40000000000 doesn't fit in an Int32"
assert_syntax_error "0b100000000000000000000000000000000i32", "0b100000000000000000000000000000000 doesn't fit in an Int32"
# 2**63 - 1
it_lexes_i64 [["0x7fffffffffffffff", "9223372036854775807"], ["0o777777777777777777777", "9223372036854775807"], ["0b111111111111111111111111111111111111111111111111111111111111111", "9223372036854775807"]]
# 2**63
it_lexes_u64 [["0x8000000000000000", "9223372036854775808"], ["0o1000000000000000000000", "9223372036854775808"], ["0b1000000000000000000000000000000000000000000000000000000000000000", "9223372036854775808"]]
assert_syntax_error "0x8000000000000000i64", "0x8000000000000000 doesn't fit in an Int64"
assert_syntax_error "0o1000000000000000000000i64", "0o1000000000000000000000 doesn't fit in an Int64"
assert_syntax_error "0b1000000000000000000000000000000000000000000000000000000000000000i64", "0b1000000000000000000000000000000000000000000000000000000000000000 doesn't fit in an Int64"
# 2**64 - 1
it_lexes_u64 [["0xffff_ffff_ffff_ffff", "18446744073709551615"], ["0o177777_77777777_77777777", "18446744073709551615"], ["0b11111111_11111111_11111111_11111111_11111111_11111111_11111111_11111111", "18446744073709551615"]]
it_lexes_u64 [["0x00ffffffffffffffff", "18446744073709551615"], ["0o001777777777777777777777", "18446744073709551615"], ["0b001111111111111111111111111111111111111111111111111111111111111111", "18446744073709551615"]]
# 2**64
it_lexes_number :i128, ["0x10000_0000_0000_0000_i128", "18446744073709551616"]
assert_syntax_error "0x10000_0000_0000_0000_u64", "0x10000_0000_0000_0000 doesn't fit in an UInt64"
assert_syntax_error "0xfffffffffffffffff_u64", "0xfffffffffffffffff doesn't fit in an UInt64"
assert_syntax_error "0o200000_00000000_00000000_u64", "0o200000_00000000_00000000 doesn't fit in an UInt64"
assert_syntax_error "0b100000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000_u64", "0b100000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000 doesn't fit in an UInt64"
# Very large
assert_syntax_error "0x1afafafafafafafafafafafu64", "0x1afafafafafafafafafafaf doesn't fit in an UInt64"
assert_syntax_error "0x1afafafafafafafafafafafi32", "0x1afafafafafafafafafafaf doesn't fit in an Int32"
assert_syntax_error "0o1234567123456712345671234567u64", "0o1234567123456712345671234567 doesn't fit in an UInt64"
assert_syntax_error "0o12345671234567_12345671234567_i8", "0o12345671234567_12345671234567 doesn't fit in an Int8"
assert_syntax_error "0b100000000000000000000000000000000000000000000000000000000000000000u64", "0b100000000000000000000000000000000000000000000000000000000000000000 doesn't fit in an UInt64"
it_lexes_i64 [["0o700000000000000000000", "8070450532247928832"]]
it_lexes_u64 [["0o1000000000000000000000", "9223372036854775808"]]
assert_syntax_error "4f33", "invalid float suffix"
assert_syntax_error "4f65", "invalid float suffix"
assert_syntax_error "4f22", "invalid float suffix"
assert_syntax_error "4i33", "invalid int suffix"
assert_syntax_error "4i65", "invalid int suffix"
assert_syntax_error "4i22", "invalid int suffix"
assert_syntax_error "4i3", "invalid int suffix"
assert_syntax_error "4i12", "invalid int suffix"
assert_syntax_error "4u33", "invalid uint suffix"
assert_syntax_error "4u65", "invalid uint suffix"
assert_syntax_error "4u22", "invalid uint suffix"
assert_syntax_error "4u3", "invalid uint suffix"
assert_syntax_error "4u12", "invalid uint suffix"
# Tests for #8782
assert_syntax_error "4F32", %(unexpected token: "F32")
assert_syntax_error "4F64", %(unexpected token: "F64")
assert_syntax_error "0F32", %(unexpected token: "F32")
assert_syntax_error "4.0_u32", "Invalid suffix u32 for decimal number"
assert_syntax_error "2e8i8", "Invalid suffix i8 for decimal number"
assert_syntax_error ".42", ".1 style number literal is not supported, put 0 before dot"
assert_syntax_error "-.42", ".1 style number literal is not supported, put 0 before dot"
assert_syntax_error "2e", "unexpected token: \"e\""
assert_syntax_error "2ef32", "unexpected token: \"ef32\""
assert_syntax_error "2e+_2", "unexpected '_' in number"
it "lexes not instance var" do
lexer = Lexer.new "!@foo"
token = lexer.next_token
token.type.should eq(:"!")
token = lexer.next_token
token.type.should eq(:INSTANCE_VAR)
token.value.should eq("@foo")
end
it "lexes space after keyword" do
lexer = Lexer.new "end 1"
token = lexer.next_token
token.type.should eq(:IDENT)
token.value.should eq(:end)
token = lexer.next_token
token.type.should eq(:SPACE)
end
it "lexes space after char" do
lexer = Lexer.new "'a' "
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.should eq('a')
token = lexer.next_token
token.type.should eq(:SPACE)
end
it "lexes comment and token" do
lexer = Lexer.new "# comment\n="
token = lexer.next_token
token.type.should eq(:NEWLINE)
token = lexer.next_token
token.type.should eq(:"=")
end
it "lexes comment at the end" do
lexer = Lexer.new "# comment"
token = lexer.next_token
token.type.should eq(:EOF)
end
it "lexes __LINE__" do
lexer = Lexer.new "__LINE__"
token = lexer.next_token
token.type.should eq(:__LINE__)
end
it "lexes __FILE__" do
lexer = Lexer.new "__FILE__"
lexer.filename = "foo"
token = lexer.next_token
token.type.should eq(:__FILE__)
end
it "lexes __DIR__" do
lexer = Lexer.new "__DIR__"
token = lexer.next_token
token.type.should eq(:__DIR__)
end
it "lexes dot and ident" do
lexer = Lexer.new ".read"
token = lexer.next_token
token.type.should eq(:".")
token = lexer.next_token
token.type.should eq(:IDENT)
token.value.should eq("read")
token = lexer.next_token
token.type.should eq(:EOF)
end
assert_syntax_error "/foo", "Unterminated regular expression"
assert_syntax_error "/\\", "Unterminated regular expression"
assert_syntax_error ":\"foo", "unterminated quoted symbol"
it "lexes utf-8 char" do
lexer = Lexer.new "'á'"
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.as(Char).ord.should eq(225)
end
it "lexes utf-8 multibyte char" do
lexer = Lexer.new "'日'"
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.as(Char).ord.should eq(26085)
end
it "doesn't raise if slash r with slash n" do
lexer = Lexer.new("\r\n1")
token = lexer.next_token
token.type.should eq(:NEWLINE)
token = lexer.next_token
token.type.should eq(:NUMBER)
end
it "doesn't raise if many slash r with slash n" do
lexer = Lexer.new("\r\n\r\n\r\n1")
token = lexer.next_token
token.type.should eq(:NEWLINE)
token = lexer.next_token
token.type.should eq(:NUMBER)
end
assert_syntax_error "\r1", "expected '\\n' after '\\r'"
it "lexes char with unicode codepoint" do
lexer = Lexer.new "'\\uFEDA'"
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.as(Char).ord.should eq(0xFEDA)
end
it "lexes char with unicode codepoint and curly with zeros" do
lexer = Lexer.new "'\\u{0}'"
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.as(Char).ord.should eq(0)
end
it "lexes char with unicode codepoint and curly" do
lexer = Lexer.new "'\\u{A5}'"
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.as(Char).ord.should eq(0xA5)
end
it "lexes char with unicode codepoint and curly with six hex digits" do
lexer = Lexer.new "'\\u{10FFFF}'"
token = lexer.next_token
token.type.should eq(:CHAR)
token.value.as(Char).ord.should eq(0x10FFFF)
end
it "lexes float then zero (bug)" do
lexer = Lexer.new "2.5 0"
lexer.next_token.number_kind.should eq(:f64)
lexer.next_token.type.should eq(:SPACE)
token = lexer.next_token
token.type.should eq(:NUMBER)
token.number_kind.should eq(:i32)
end
it "lexes symbol with quote" do
lexer = Lexer.new %(:"\\"")
token = lexer.next_token
token.type.should eq(:SYMBOL)
token.value.should eq("\"")
end
it "lexes symbol with backslash (#2187)" do
lexer = Lexer.new %(:"\\\\")
token = lexer.next_token
token.type.should eq(:SYMBOL)
token.value.should eq("\\")
end
it "lexes symbol followed by !=" do
lexer = Lexer.new ":a!=:a"
token = lexer.next_token
token.type.should eq(:SYMBOL)
token.value.should eq("a")
token = lexer.next_token