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# Numeric Literal Separators
# --------------------------
test 'integer literals with separators', ->
eq 123_456, 123456
eq 12_34_56, 123456
test 'decimal literals with separators', ->
eq 1_2.34_5, 12.345
eq 1_0e1_0, 10e10
eq 1_2.34_5e6_7, 12.345e67
test 'hexadecimal literals with separators', ->
eq 0x1_2_3_4, 0x1234
test 'binary literals with separators', ->
eq 0b10_10, 0b1010
test 'octal literals with separators', ->
eq 0o7_7_7, 0o777
test 'infinity with separator', ->
eq 2e3_08, Infinity
test 'range with separators', ->
range = [10_000...10_002]
eq range.length, 2
eq range[0], 10000
test 'property access on a number', ->
# Somehow, `3..toFixed()` is valid JavaScript; though just `3.toFixed()`
# is not. CoffeeScript has long allowed code like `3.toFixed()` to compile
# into `3..toFixed()`.
eq 3.toFixed(), '3'
# Where this can conflict with numeric literal separators is when the
# property name contains an underscore.
Number::_23 = _23 = 'x'
eq 1._23, 'x'
ok 1._34 is undefined
delete Number::_23
test 'invalid decimal literal separators do not compile', ->
# `1._23` is a valid property access (see previous test)
throwsCompileError '1_.23'
throwsCompileError '1e_2'
throwsCompileError '1e2_'
throwsCompileError '1_'
throwsCompileError '1__2'
test 'invalid hexadecimal literal separators do not compile', ->
throwsCompileError '0x_1234'
throwsCompileError '0x1234_'
throwsCompileError '0x1__34'
test 'invalid binary literal separators do not compile', ->
throwsCompileError '0b_100'
throwsCompileError '0b100_'
throwsCompileError '0b1__1'
test 'invalid octal literal separators do not compile', ->
throwsCompileError '0o_777'
throwsCompileError '0o777_'
throwsCompileError '0o6__6'
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