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204 lines (181 loc) · 5.03 KB
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using System;
using System.Runtime.InteropServices;
namespace Python.Runtime
{
/// <summary>
/// Represents a Python dictionary object. See the documentation at
/// http://www.python.org/doc/current/api/dictObjects.html for details.
/// </summary>
public class PyDict : PyObject
{
/// <summary>
/// PyDict Constructor
/// </summary>
///
/// <remarks>
/// Creates a new PyDict from an existing object reference. Note
/// that the instance assumes ownership of the object reference.
/// The object reference is not checked for type-correctness.
/// </remarks>
public PyDict(IntPtr ptr) : base(ptr)
{
}
/// <summary>
/// PyDict Constructor
/// </summary>
///
/// <remarks>
/// Creates a new Python dictionary object.
/// </remarks>
public PyDict() : base()
{
obj = Runtime.PyDict_New();
if (obj == IntPtr.Zero)
{
throw new PythonException();
}
}
/// <summary>
/// PyDict Constructor
/// </summary>
///
/// <remarks>
/// Copy constructor - obtain a PyDict from a generic PyObject. An
/// ArgumentException will be thrown if the given object is not a
/// Python dictionary object.
/// </remarks>
public PyDict(PyObject o) : base()
{
if (!IsDictType(o))
{
throw new ArgumentException("object is not a dict");
}
Runtime.XIncref(o.obj);
obj = o.obj;
}
/// <summary>
/// IsDictType Method
/// </summary>
///
/// <remarks>
/// Returns true if the given object is a Python dictionary.
/// </remarks>
public static bool IsDictType(PyObject value)
{
return Runtime.PyDict_Check(value.obj);
}
/// <summary>
/// HasKey Method
/// </summary>
///
/// <remarks>
/// Returns true if the object key appears in the dictionary.
/// </remarks>
public bool HasKey(PyObject key)
{
return (Runtime.PyMapping_HasKey(obj, key.obj) != 0);
}
/// <summary>
/// HasKey Method
/// </summary>
///
/// <remarks>
/// Returns true if the string key appears in the dictionary.
/// </remarks>
public bool HasKey(string key)
{
using (PyString str = new PyString(key))
return HasKey(str);
}
/// <summary>
/// Keys Method
/// </summary>
///
/// <remarks>
/// Returns a sequence containing the keys of the dictionary.
/// </remarks>
public PyObject Keys()
{
IntPtr items = Runtime.PyDict_Keys(obj);
if (items == IntPtr.Zero)
{
throw new PythonException();
}
return new PyObject(items);
}
/// <summary>
/// Values Method
/// </summary>
///
/// <remarks>
/// Returns a sequence containing the values of the dictionary.
/// </remarks>
public PyObject Values()
{
IntPtr items = Runtime.PyDict_Values(obj);
if (items == IntPtr.Zero)
{
throw new PythonException();
}
return new PyObject(items);
}
/// <summary>
/// Items Method
/// </summary>
///
/// <remarks>
/// Returns a sequence containing the items of the dictionary.
/// </remarks>
public PyObject Items()
{
IntPtr items = Runtime.PyDict_Items(obj);
if (items == IntPtr.Zero)
{
throw new PythonException();
}
return new PyObject(items);
}
/// <summary>
/// Copy Method
/// </summary>
///
/// <remarks>
/// Returns a copy of the dictionary.
/// </remarks>
public PyDict Copy()
{
IntPtr op = Runtime.PyDict_Copy(obj);
if (op == IntPtr.Zero)
{
throw new PythonException();
}
return new PyDict(op);
}
/// <summary>
/// Update Method
/// </summary>
///
/// <remarks>
/// Update the dictionary from another dictionary.
/// </remarks>
public void Update(PyObject other)
{
int result = Runtime.PyDict_Update(obj, other.obj);
if (result < 0)
{
throw new PythonException();
}
}
/// <summary>
/// Clear Method
/// </summary>
///
/// <remarks>
/// Clears the dictionary.
/// </remarks>
public void Clear()
{
Runtime.PyDict_Clear(obj);
}
}
}