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Add tests for the optimization of trailing return statements

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This documents current behavior. When #1038 was fixed, we also optimized
away trailing "undefined" and "return undefined", but that is no longer
the case.
This commit is contained in:
Adam Roben 2014-02-06 09:07:43 -05:00
parent eda4f0c55b
commit 8980647f32
1 changed files with 13 additions and 0 deletions
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13
test/functions.coffee
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@ -240,3 +240,16 @@ test "#1435 Indented property access", ->
rec.rec()
.rec()
1
test "#1038 Optimize trailing return statements", ->
compile = (code) -> CoffeeScript.compile(code, bare: yes).trim().replace(/\s+/g, " ")
eq "(function() {});", compile("->")
eq "(function() {});", compile("-> return")
eq "(function() { return void 0; });", compile("-> undefined")
eq "(function() { return void 0; });", compile("-> return undefined")
eq "(function() { foo(); });", compile("""
->
foo()
return
""")