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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Microsoft Public License. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Microsoft Public License, please send an email to
* ironruby@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Microsoft Public License.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System;
using System.Runtime.CompilerServices;
using IronRuby.Builtins;
using IronRuby.Runtime;
using IronRuby.Runtime.Calls;
using Microsoft.Scripting;
using Microsoft.Scripting.Runtime;
using System.Collections;
using System.Collections.Generic;
namespace IronRuby.StandardLibrary.Yaml {
[RubyClass("Out")]
public class RubyRepresenter : Representer {
private readonly RubyContext/*!*/ _context;
private readonly CallSite<Func<CallSite, object, object>> _TagUri;
private readonly CallSite<Func<CallSite, object, object>> _ToYamlStyle;
private readonly CallSite<Func<CallSite, object, RubyRepresenter, object>> _ToYamlNode;
private readonly CallSite<Func<CallSite, object, RubyRepresenter, object>> _ToYaml;
private readonly CallSite<Func<CallSite, object, object>> _ToYamlProperties;
private RubyMemberInfo _objectToYamlMethod;
public RubyContext/*!*/ Context {
get { return _context; }
}
public RubyRepresenter(RubyContext/*!*/ context, Serializer/*!*/ serializer, YamlOptions/*!*/ opts)
: base(serializer, opts) {
_context = context;
_objectToYamlMethod = context.GetClass(typeof(object)).ResolveMethod("to_yaml", VisibilityContext.AllVisible).Info;
_TagUri =
CallSite<Func<CallSite, object, object>>.Create(
RubyCallAction.Make(context, "taguri", RubyCallSignature.WithImplicitSelf(0))
);
_ToYamlStyle =
CallSite<Func<CallSite, object, object>>.Create(
RubyCallAction.Make(context, "to_yaml_style", RubyCallSignature.WithImplicitSelf(0))
);
_ToYamlNode =
CallSite<Func<CallSite, object, RubyRepresenter, object>>.Create(
RubyCallAction.Make(context, "to_yaml_node", RubyCallSignature.WithImplicitSelf(1))
);
_ToYaml =
CallSite<Func<CallSite, object, RubyRepresenter, object>>.Create(
RubyCallAction.Make(context, "to_yaml", RubyCallSignature.WithImplicitSelf(0))
);
_ToYamlProperties =
CallSite<Func<CallSite, object, object>>.Create(
RubyCallAction.Make(context, "to_yaml_properties", RubyCallSignature.WithImplicitSelf(0))
);
}
#region dynamic sites
internal MutableString GetTagUri(object obj) {
return (MutableString)_TagUri.Target(_TagUri, obj);
}
internal MutableString ToYamlStyle(object obj) {
return (MutableString)_ToYamlStyle.Target(_ToYamlStyle, obj);
}
internal RubyArray ToYamlProperties(object obj) {
return (RubyArray)_ToYamlProperties.Target(_ToYamlProperties, obj);
}
#endregion
protected override Node CreateNode(object data) {
RubyMemberInfo method = _context.GetImmediateClassOf(data).ResolveMethodForSite("to_yaml", VisibilityContext.AllVisible).Info;
if (method == _objectToYamlMethod) {
return (Node)_ToYamlNode.Target(_ToYamlNode, data, this);
} else {
// TODO: this is not correct:
return (Node)_ToYaml.Target(_ToYaml, data, this);
}
}
protected override bool IgnoreAliases(object data) {
return RubyUtils.IsRubyValueType(data) || base.IgnoreAliases(data);
}
internal Node Scalar(MutableString taguri, MutableString value, SymbolId style) {
return Scalar(
taguri != null ? taguri.ConvertToString() : "",
value != null ? value.ConvertToString() : "",
//It's not clear what style argument really means, it seems to be always :plain
//for now we are ignoring it, defaulting to \0 (see Representer class)
'\0'
);
}
internal Node Scalar(object self, MutableString value) {
MutableString taguri = GetTagUri(self);
MutableString styleStr = ToYamlStyle(self);
char style = '\0';
if (!MutableString.IsNullOrEmpty(styleStr)) {
style = styleStr.GetChar(0);
}
return Scalar(
taguri != null ? taguri.ConvertToString() : "",
value != null ? value.ConvertToString() : "",
style
);
}
internal Node/*!*/ Map(object self, IDictionary/*!*/ map) {
MutableString taguri = GetTagUri(self);
object style = ToYamlStyle(self);
return Map(taguri, style, map);
}
internal Node/*!*/ Map(MutableString taguri, object to_yaml_style, IDictionary/*!*/ map) {
return Map(
taguri != null ? taguri.ConvertToString() : "tag:yaml.org,2002:map",
map,
RubyOps.IsTrue(to_yaml_style)
);
}
[RubyMethod("map")]
public static Node/*!*/ Map(RubyContext/*!*/ context, [NotNull]BlockParam/*!*/ block, RubyRepresenter/*!*/ self, [DefaultProtocol]MutableString taguri, object to_yaml_style) {
var map = new Dictionary<object, object>();
object blockResult;
block.Yield(map, out blockResult);
return self.Map(taguri, to_yaml_style ?? false, map);
}
internal Node Sequence(object self, RubyArray seq) {
MutableString taguri = GetTagUri(self);
MutableString style = ToYamlStyle(self);
return Sequence(
taguri != null ? taguri.ConvertToString() : "",
seq,
style != null
);
}
internal void AddYamlProperties(object self, Dictionary<MutableString, object>/*!*/ map) {
AddYamlProperties(self, map, ToYamlProperties(self));
}
internal void AddYamlProperties(object self, Dictionary<MutableString, object>/*!*/ map, RubyArray/*!*/ props) {
foreach (object prop in props) {
string p = prop.ToString();
map[MutableString.Create(p.Substring(1))] = KernelOps.InstanceVariableGet(_context, self, p);
}
}
}
}
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