99 lines
1.7 KiB
CoffeeScript
99 lines
1.7 KiB
CoffeeScript
# Assignment
|
|
# ----------
|
|
|
|
test "context property assignment (using @)", ->
|
|
nonce = {}
|
|
addMethod = ->
|
|
@method = -> nonce
|
|
this
|
|
eq nonce, addMethod.call({}).method()
|
|
|
|
test "unassignable values", ->
|
|
nonce = {}
|
|
for nonref in ['', '""', '0', 'f()'].concat CoffeeScript.RESERVED
|
|
eq nonce, (try CoffeeScript.compile "#{nonref} = v" catch e then nonce)
|
|
|
|
test "compound assignments should not declare", ->
|
|
# TODO: make description more clear
|
|
# TODO: remove reference to Math
|
|
eq Math, (-> Math or= 0)()
|
|
|
|
|
|
#### Statements as Expressions
|
|
|
|
test "assign the result of a try/catch block", ->
|
|
# multiline
|
|
result = try
|
|
nonexistent * missing
|
|
catch error
|
|
true
|
|
eq true, result
|
|
|
|
# single line
|
|
result = try nonexistent * missing catch error then true
|
|
eq true, result
|
|
|
|
test "conditionals", ->
|
|
# assign inside the condition of a conditional statement
|
|
nonce = {}
|
|
if a = nonce then 1
|
|
eq nonce, a
|
|
1 if b = nonce
|
|
eq nonce, b
|
|
|
|
# assign the result of a conditional statement
|
|
c = if true then nonce
|
|
eq nonce, c
|
|
|
|
test "assign inside the condition of a `while` loop", ->
|
|
nonce = {}
|
|
count = 1
|
|
a = nonce while count--
|
|
eq nonce, a
|
|
count = 1
|
|
while count--
|
|
b = nonce
|
|
eq nonce, b
|
|
|
|
|
|
#### Compound Assignment
|
|
|
|
test "compound assignment (math operators)", ->
|
|
num = 10
|
|
num -= 5
|
|
eq 5, num
|
|
|
|
num *= 10
|
|
eq 50, num
|
|
|
|
num /= 10
|
|
eq 5, num
|
|
|
|
num %= 3
|
|
eq 2, num
|
|
|
|
test "more compound assignment", ->
|
|
a = {}
|
|
val = undefined
|
|
val ||= a
|
|
val ||= true
|
|
eq a, val
|
|
|
|
b = {}
|
|
val &&= true
|
|
eq val, true
|
|
val &&= b
|
|
eq b, val
|
|
|
|
c = {}
|
|
val = null
|
|
val ?= c
|
|
val ?= true
|
|
eq c, val
|
|
|
|
|
|
#### Destructuring Assignment
|
|
|
|
# NO TESTS?!
|
|
# TODO: make tests for destructuring assignment
|