mirror of
https://github.com/jashkenas/coffeescript.git
synced 2022-11-09 12:23:24 -05:00
9ec427ba80
It is possible to match only valid JavaScript identifiers with a really long regex (like coco and CoffeeScriptRedux does), but CoffeeScript uses a much simpler one, which allows a bit too much. Quoting jashkenas/coffeescript#1718 #issuecomment-2152464 @jashkenas: > But it still seems very much across the "worth it" line. You'll get the > SyntaxError as soon as it hits JS, and performance aside -- even the increase > in filesize for our browser coffee-script.js lib seems too much, considering > this is something no one ever does, apart from experimentation. In short, CoffeeScript treats any non-ASCII character as part of an identifier. However, unicode spaces should be excluded since having blank characters as part of a _word_ is very confusing. This commit does so, while still keeping the regex really simple.
125 lines
3.3 KiB
CoffeeScript
125 lines
3.3 KiB
CoffeeScript
# Compilation
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# -----------
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# helper to assert that a string should fail compilation
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cantCompile = (code) ->
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throws -> CoffeeScript.compile code
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test "ensure that carriage returns don't break compilation on Windows", ->
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doesNotThrow -> CoffeeScript.compile 'one\r\ntwo', bare: on
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test "#3089 - don't mutate passed in options to compile", ->
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opts = {}
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CoffeeScript.compile '1 + 1', opts
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ok !opts.scope
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test "--bare", ->
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eq -1, CoffeeScript.compile('x = y', bare: on).indexOf 'function'
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ok 'passed' is CoffeeScript.eval '"passed"', bare: on, filename: 'test'
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test "header (#1778)", ->
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header = "// Generated by CoffeeScript #{CoffeeScript.VERSION}\n"
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eq 0, CoffeeScript.compile('x = y', header: on).indexOf header
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test "header is disabled by default", ->
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header = "// Generated by CoffeeScript #{CoffeeScript.VERSION}\n"
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eq -1, CoffeeScript.compile('x = y').indexOf header
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test "multiple generated references", ->
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a = {b: []}
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a.b[true] = -> this == a.b
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c = 0
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d = []
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ok a.b[0<++c<2] d...
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test "splat on a line by itself is invalid", ->
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cantCompile "x 'a'\n...\n"
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test "Issue 750", ->
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cantCompile 'f(->'
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cantCompile 'a = (break)'
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cantCompile 'a = (return 5 for item in list)'
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cantCompile 'a = (return 5 while condition)'
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cantCompile 'a = for x in y\n return 5'
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test "Issue #986: Unicode identifiers", ->
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λ = 5
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eq λ, 5
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test "#2516: Unicode spaces should not be part of identifiers", ->
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a = (x) -> x * 2
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b = 3
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eq 6, a b # U+00A0 NO-BREAK SPACE
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eq 6, a b # U+1680 OGHAM SPACE MARK
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eq 6, a b # U+2000 EN QUAD
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eq 6, a b # U+2001 EM QUAD
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eq 6, a b # U+2002 EN SPACE
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eq 6, a b # U+2003 EM SPACE
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eq 6, a b # U+2004 THREE-PER-EM SPACE
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eq 6, a b # U+2005 FOUR-PER-EM SPACE
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eq 6, a b # U+2006 SIX-PER-EM SPACE
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eq 6, a b # U+2007 FIGURE SPACE
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eq 6, a b # U+2008 PUNCTUATION SPACE
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eq 6, a b # U+2009 THIN SPACE
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eq 6, a b # U+200A HAIR SPACE
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eq 6, a b # U+202F NARROW NO-BREAK SPACE
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eq 6, a b # U+205F MEDIUM MATHEMATICAL SPACE
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eq 6, a b # U+3000 IDEOGRAPHIC SPACE
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# #3560: Non-breaking space (U+00A0) (before `'c'`)
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eq 5, {c: 5}[ 'c' ]
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# A line where every space in non-breaking
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eq 1 + 1, 2
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test "don't accidentally stringify keywords", ->
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ok (-> this == 'this')() is false
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test "#1026", ->
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cantCompile '''
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if a
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b
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else
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c
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else
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d
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'''
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test "#1050", ->
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cantCompile "### */ ###"
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test "#1273: escaping quotes at the end of heredocs", ->
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cantCompile '"""\\"""' # """\"""
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cantCompile '"""\\\\\\"""' # """\\\"""
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test "#1106: __proto__ compilation", ->
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object = eq
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@["__proto__"] = true
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ok __proto__
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test "reference named hasOwnProperty", ->
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CoffeeScript.compile 'hasOwnProperty = 0; a = 1'
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test "#1055: invalid keys in real (but not work-product) objects", ->
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cantCompile "@key: value"
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test "#1066: interpolated strings are not implicit functions", ->
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cantCompile '"int#{er}polated" arg'
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test "#2846: while with empty body", ->
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CoffeeScript.compile 'while 1 then', {sourceMap: true}
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test "#2944: implicit call with a regex argument", ->
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CoffeeScript.compile 'o[key] /regex/'
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test "#3001: `own` shouldn't be allowed in a `for`-`in` loop", ->
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cantCompile "a for own b in c"
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test "#2994: single-line `if` requires `then`", ->
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cantCompile "if b else x"
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