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author | Jason Zaugg <jzaugg@gmail.com> | 2012-06-17 23:23:49 +0200 |
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committer | Jason Zaugg <jzaugg@gmail.com> | 2012-06-17 23:48:42 +0200 |
commit | 6aa5762fa0333625ec93378e2147649a8bafde34 (patch) | |
tree | 52c6c9c7d608e20d3c628d5f325977f834866a20 /test | |
parent | 277dc7cf43566f8294bde4143107d9bfaa59e8e3 (diff) | |
download | scala-6aa5762fa0333625ec93378e2147649a8bafde34.tar.gz scala-6aa5762fa0333625ec93378e2147649a8bafde34.tar.bz2 scala-6aa5762fa0333625ec93378e2147649a8bafde34.zip |
SI-4842 Forbid access to in-construction this in self-constructor args
The check was already in place for direct calls to the super constructor.
Without this additional check, ExplicitOuter crashes, as it doesn't create
an $outer pointer for the constructor-arg scoped inner object, but expects
one to exist when transforming the Outer.this reference.
Diffstat (limited to 'test')
-rw-r--r-- | test/files/neg/t4842a.check | 4 | ||||
-rw-r--r-- | test/files/neg/t4842a.scala | 3 | ||||
-rw-r--r-- | test/files/neg/t4842b.check | 4 | ||||
-rw-r--r-- | test/files/neg/t4842b.scala | 3 | ||||
-rw-r--r-- | test/files/pos/t4842.scala | 26 |
5 files changed, 40 insertions, 0 deletions
diff --git a/test/files/neg/t4842a.check b/test/files/neg/t4842a.check new file mode 100644 index 0000000000..39d77bfc48 --- /dev/null +++ b/test/files/neg/t4842a.check @@ -0,0 +1,4 @@ +t4842a.scala:2: error: self constructor arguments cannot reference unconstructed `this` + def this(x: Int) = this(new { println(Foo.this)}) // error + ^ +one error found diff --git a/test/files/neg/t4842a.scala b/test/files/neg/t4842a.scala new file mode 100644 index 0000000000..78360effb4 --- /dev/null +++ b/test/files/neg/t4842a.scala @@ -0,0 +1,3 @@ +class Foo (x: AnyRef) { + def this(x: Int) = this(new { println(Foo.this)}) // error +} diff --git a/test/files/neg/t4842b.check b/test/files/neg/t4842b.check new file mode 100644 index 0000000000..c7ccd5e059 --- /dev/null +++ b/test/files/neg/t4842b.check @@ -0,0 +1,4 @@ +t4842b.scala:2: error: self constructor arguments cannot reference unconstructed `this` + def this() = { this(???)(new { println(TypeArg.this.x) } ); println("next") } // error + ^ +one error found diff --git a/test/files/neg/t4842b.scala b/test/files/neg/t4842b.scala new file mode 100644 index 0000000000..a7996cc061 --- /dev/null +++ b/test/files/neg/t4842b.scala @@ -0,0 +1,3 @@ +class TypeArg[X](val x: X)(a: AnyRef) { + def this() = { this(???)(new { println(TypeArg.this.x) } ); println("next") } // error +} diff --git a/test/files/pos/t4842.scala b/test/files/pos/t4842.scala new file mode 100644 index 0000000000..17ff684833 --- /dev/null +++ b/test/files/pos/t4842.scala @@ -0,0 +1,26 @@ +class Foo (x: AnyRef) { + def this() = { + this(new { } ) // okay + } +} + + +class Blerg (x: AnyRef) { + def this() = { + this(new { class Bar { println(Bar.this); new { println(Bar.this) } }; new Bar } ) // okay + } +} + + +class Outer { + class Inner (x: AnyRef) { + def this() = { + this(new { class Bar { println(Bar.this); new { println(Bar.this) } }; new Bar } ) // okay + } + + def this(x: Boolean) = { + this(new { println(Outer.this) } ) // okay + } + } +} + |