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Commitea44eef

Browse files
yagwebvmuriart
authored andcommitted
Add Eval(...) and Exec(...)
1 parentedc7621 commitea44eef

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3 files changed

+107
-19
lines changed

3 files changed

+107
-19
lines changed

‎src/embed_tests/Python.EmbeddingTest.csproj

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -86,6 +86,7 @@
8686
<CompileInclude="pyiter.cs" />
8787
<CompileInclude="pylong.cs" />
8888
<CompileInclude="pyobject.cs" />
89+
<CompileInclude="pyrunstring.cs" />
8990
<CompileInclude="pythonexception.cs" />
9091
<CompileInclude="pytuple.cs" />
9192
</ItemGroup>

‎src/embed_tests/pyrunstring.cs

Lines changed: 61 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,61 @@
1+
usingSystem;
2+
usingNUnit.Framework;
3+
usingPython.Runtime;
4+
5+
namespacePython.EmbeddingTest
6+
{
7+
publicclassRunStringTest
8+
{
9+
privatePy.GILStategil;
10+
11+
[SetUp]
12+
publicvoidSetUp()
13+
{
14+
gil=Py.GIL();
15+
}
16+
17+
[TearDown]
18+
publicvoidDispose()
19+
{
20+
gil.Dispose();
21+
}
22+
23+
[Test]
24+
publicvoidTestRunSimpleString()
25+
{
26+
intaa=PythonEngine.RunSimpleString("import sys");
27+
Assert.AreEqual(aa,0);
28+
29+
intbb=PythonEngine.RunSimpleString("import 1234");
30+
Assert.AreEqual(bb,-1);
31+
}
32+
33+
[Test]
34+
publicvoidTestEval()
35+
{
36+
dynamicsys=Py.Import("sys");
37+
sys.attr1=100;
38+
varlocals=newPyDict();
39+
locals.SetItem("sys",sys);
40+
locals.SetItem("a",newPyInt(10));
41+
42+
objectb=PythonEngine.Eval("sys.attr1 + a + 1",null,locals.Handle)
43+
.AsManagedObject(typeof(Int32));
44+
Assert.AreEqual(b,111);
45+
}
46+
47+
[Test]
48+
publicvoidTestExec()
49+
{
50+
dynamicsys=Py.Import("sys");
51+
sys.attr1=100;
52+
varlocals=newPyDict();
53+
locals.SetItem("sys",sys);
54+
locals.SetItem("a",newPyInt(10));
55+
56+
PythonEngine.Exec("c = sys.attr1 + a + 1",null,locals.Handle);
57+
objectc=locals.GetItem("c").AsManagedObject(typeof(Int32));
58+
Assert.AreEqual(c,111);
59+
}
60+
}
61+
}

‎src/runtime/pythonengine.cs

Lines changed: 45 additions & 19 deletions
Original file line numberDiff line numberDiff line change
@@ -156,11 +156,7 @@ public static void Initialize(IEnumerable<string> args)
156156
stringcode=
157157
"import atexit, clr\n"+
158158
"atexit.register(clr._AtExit)\n";
159-
PyObjectr=PythonEngine.RunString(code);
160-
if(r!=null)
161-
{
162-
r.Dispose();
163-
}
159+
PythonEngine.Exec(code);
164160

165161
// Load the clr.py resource into the clr module
166162
IntPtrclr=Python.Runtime.ImportHook.GetCLRModule();
@@ -180,12 +176,7 @@ public static void Initialize(IEnumerable<string> args)
180176
{
181177
// add the contents of clr.py to the module
182178
stringclr_py=reader.ReadToEnd();
183-
PyObjectresult=RunString(clr_py,module_globals,locals.Handle);
184-
if(null==result)
185-
{
186-
thrownewPythonException();
187-
}
188-
result.Dispose();
179+
Exec(clr_py,module_globals,locals.Handle);
189180
}
190181

191182
// add the imported module to the clr module, and copy the API functions
@@ -253,11 +244,7 @@ public static void InitExt()
253244
" exec(line)\n"+
254245
" break\n";
255246

256-
PyObjectr=PythonEngine.RunString(code);
257-
if(r!=null)
258-
{
259-
r.Dispose();
260-
}
247+
PythonEngine.Exec(code);
261248
}
262249
catch(PythonExceptione)
263250
{
@@ -405,6 +392,38 @@ public static PyObject ModuleFromString(string name, string code)
405392
}
406393

407394

395+
/// <summary>
396+
/// Eval Method
397+
/// </summary>
398+
/// <remarks>
399+
/// Evaluate a Python expression and returns the result.
400+
/// It's a subset of Python eval function.
401+
/// </remarks>
402+
publicstaticPyObjectEval(stringcode,IntPtr?globals=null,IntPtr?locals=null)
403+
{
404+
PyObjectresult=RunString(code,globals,locals,RunFlagType.Eval);
405+
returnresult;
406+
}
407+
408+
409+
/// <summary>
410+
/// Exec Method
411+
/// </summary>
412+
/// <remarks>
413+
/// Run a string containing Python code.
414+
/// It's a subset of Python exec function.
415+
/// </remarks>
416+
publicstaticvoidExec(stringcode,IntPtr?globals=null,IntPtr?locals=null)
417+
{
418+
PyObjectresult=RunString(code,globals,locals,RunFlagType.File);
419+
if(result.obj!=Runtime.PyNone)
420+
{
421+
thrownewPythonException();
422+
}
423+
result.Dispose();
424+
}
425+
426+
408427
/// <summary>
409428
/// RunString Method
410429
/// </summary>
@@ -413,8 +432,8 @@ public static PyObject ModuleFromString(string name, string code)
413432
/// executing the code string as a PyObject instance, or null if
414433
/// an exception was raised.
415434
/// </remarks>
416-
publicstaticPyObjectRunString(
417-
stringcode,IntPtr?globals=null,IntPtr?locals=null
435+
internalstaticPyObjectRunString(
436+
stringcode,IntPtr?globals=null,IntPtr?locals=null,RunFlagType_flag=RunFlagType.File
418437
)
419438
{
420439
varborrowedGlobals=true;
@@ -439,7 +458,7 @@ public static PyObject RunString(
439458
borrowedLocals=false;
440459
}
441460

442-
varflag=(IntPtr)257;/* Py_file_input */
461+
varflag=(IntPtr)_flag;
443462

444463
try
445464
{
@@ -465,6 +484,13 @@ public static PyObject RunString(
465484
}
466485
}
467486

487+
publicenumRunFlagType
488+
{
489+
Single=256,
490+
File=257,/* Py_file_input */
491+
Eval=258
492+
}
493+
468494
publicstaticclassPy
469495
{
470496
publicstaticGILStateGIL()

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