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# Number Literals
# ---------------
# * Decimal Integer Literals
# * Octal Integer Literals
# * Hexadecimal Integer Literals
# * Scientific Notation Integer Literals
# * Scientific Notation Non-Integer Literals
# * Non-Integer Literals
# * Binary Integer Literals
# Binary Integer Literals
# Binary notation is understood as would be decimal notation.
test "Parser recognises binary numbers", ->
eq 4, 0b100
# Decimal Integer Literals
test "call methods directly on numbers", ->
eq 4, 4.valueOf()
eq '11', 4.toString 3
eq -1, 3 -4
#764: Numbers should be indexable
eq Number::toString, 42['toString']
eq Number::toString, 42.toString
eq Number::toString, 2e308['toString'] # Infinity
# Non-Integer Literals
# Decimal number literals.
value = .25 + .75
ok value is 1
value = 0.0 + -.25 - -.75 + 0.0
ok value is 0.5
#764: Numbers should be indexable
eq Number::toString, 4['toString']
eq Number::toString, 4.2['toString']
eq Number::toString, .42['toString']
eq Number::toString, (4)['toString']
eq Number::toString, 4.toString
eq Number::toString, 4.2.toString
eq Number::toString, .42.toString
eq Number::toString, (4).toString
test '#1168: leading floating point suppresses newline', ->
eq 1, do ->
1
.5 + 0.5
test "Python-style octal literal notation '0o777'", ->
eq 511, 0o777
eq 1, 0o1
eq 1, 0o00001
eq parseInt('0777', 8), 0o777
eq '777', 0o777.toString 8
eq 4, 0o4.valueOf()
eq Number::toString, 0o777['toString']
eq Number::toString, 0o777.toString
test "#2060: Disallow uppercase radix prefixes and exponential notation", ->
for char in ['b', 'o', 'x', 'e']
program = "0#{char}0"
doesNotThrowCompileError program, bare: yes
throwsCompileError program.toUpperCase(), bare: yes
test "#2224: hex literals with 0b or B or E", ->
eq 176, 0x0b0
eq 177, 0x0B1
eq 225, 0xE1
test "Infinity", ->
eq Infinity, CoffeeScript.eval "0b#{Array(1024 + 1).join('1')}"
eq Infinity, CoffeeScript.eval "0o#{Array(342 + 1).join('7')}"
eq Infinity, CoffeeScript.eval "0x#{Array(256 + 1).join('f')}"
eq Infinity, CoffeeScript.eval Array(500 + 1).join('9')
eq Infinity, 2e308
test "NaN", ->
ok isNaN 1/NaN
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