Merge pull request #608 from kngwyu/bigint

Support conversion between num-bigint <-> Python Long

Cargo.toml

@@ -23,7 +23,8 @@ libc = "0.2.62"
 spin = "0.5.1"
 num-traits = "0.2.8"
 pyo3cls = { path = "pyo3cls", version = "=0.8.0" }
-num-complex = { version = "0.2.3", optional = true }
+num-complex = { version = ">= 0.2", optional = true }
+num-bigint = { version = ">= 0.2", optional = true }
 inventory = "0.1.4"
 indoc = "0.3.4"
 unindent = "0.1.4"

ci/appveyor/test.ps1

@@ -10,7 +10,7 @@ function Invoke-Call
     }
 }
 
-Invoke-Call { cargo test --verbose }
+Invoke-Call { cargo test --verbose --features="num-bigint num-complex" }
 
 $examplesDirectory = "examples"
 

ci/travis/test.sh

@@ -3,7 +3,7 @@ set -ex
 
 # run `cargo test` only if testing against cpython.
 if ! [[ $FEATURES == *"pypy"* ]]; then
-  cargo test --features "$FEATURES num-complex"
+  cargo test --features "$FEATURES num-bigint num-complex"
   ( cd pyo3-derive-backend; cargo test )
 else
   # check that pypy at least builds

src/ffi/longobject.rs

@@ -81,6 +81,8 @@ extern "C" {
 #[cfg(not(Py_LIMITED_API))]
 #[cfg_attr(windows, link(name = "pythonXY"))]
 extern "C" {
+    pub fn _PyLong_NumBits(obj: *mut PyObject) -> c_int;
+
     #[cfg_attr(PyPy, link_name = "_PyPyLong_FromByteArray")]
     pub fn _PyLong_FromByteArray(
         bytes: *const c_uchar,