Basic interface inference for modules.

test/mjsunit/harmony/module-parsing.js

-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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 //       notice, this list of conditions and the following disclaimer.
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 //       copyright notice, this list of conditions and the following
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 //       with the distribution.
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 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --harmony-modules
 
 // Test basic module syntax, with and without ASI.

[Sven Panne, 2012/03/08 08:55:00]

What's "ASI"? Asociación Salvadoreña de Industriales? :-)

[rossberg, 2012/03/08 10:47:06]

JS speak for "automatic semicolon insertion". Changed.

 
 module A {}
 
 module A1 = A
 module A2 = A;
 module A3 = A2
 
 module B {
-  export x
-  export y, z, c, f
+  export vx
+  export vy, lz, c, f
 
   var vx
   var vx, vy;
   var vx = 0, vy
   let lx, ly
   let lz = 1
   const c = 9
   function f() {}
 
-  module C {
+  module C0 {}
+
+  export module C {
     let x
-    module D {}
+    export module D { export let x }
     let y
   }
 
   let zz = ""
 
   export var x0
   export var x1, x2 = 6, x3
   export let y0
   export let y1 = 0, y2
   export const z0 = 0
   export const z1 = 2, z2 = 3
   export function f0() {}
   export module M1 {}
   export module M2 = C.D
   export module M3 at "http://where"
 
   import i0 from I
-  import i1, i2, i3 from I
+  import i1, i2, i3, M from I
   import i4, i5 from "http://where"
 }
 
+module I {
+  export let i0, i1, i2, i3;
+  export module M {}
+}
+
 module C1 = B.C;
 module D1 = B.C.D
 module D2 = C1.D
 module D3 = D2
 
 module E1 at "http://where"
 module E2 at "http://where";
 module E3 = E1.F
 
-
 // Check that ASI does not interfere.
 
 module X
 {
 let x
 }
 
 module Y
 =
 X
 
 module Z
 at
 "file://local"
 
 import
 x
 ,
 y
 from
 "file://local"
 
+
 module Wrap {
 export
 x
 ,
 y
 
 export
 var
 v1 = 1
 
@@ skipping 12 matching lines @@
 )
 {
 }
 
 export
 module V
 {
 }
 }
 
+export A, A1, A2, A3, B, I, C1, D1, D2, D3, E1, E2, E3, X, Y, Z, Wrap, x, y, UU
+
+
 
 // Check that 'module' still works as an identifier.
 
 var module
 module = {}
 module["a"] = 6
 function module() {}
 function f(module) { return module }
 try {} catch (module) {}
 
 module
 v = 20