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Improve performance of MiniYaml inheritance tree tracking.

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Use an ImmutableDictionary to avoid having to clone the inheritance tree in ResolveInherits. This avoids a lot of dictionary clones.
This commit is contained in:
RoosterDragon
2023-07-07 19:32:01 +01:00
committed by Matthias Mailänder
parent 58e8b123db
commit 30b1f926f2
2 changed files with 17 additions and 14 deletions
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28
OpenRA.Game/MiniYaml.cs
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@@ -11,6 +11,7 @@
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.IO;
using System.Linq;
using OpenRA.FileSystem;
@@ -324,22 +325,19 @@ namespace OpenRA
var resolved = new Dictionary<string, MiniYaml>(tree.Count);
foreach (var kv in tree)
{
var inherited = new Dictionary<string, MiniYamlNode.SourceLocation>
{
{ kv.Key, default }
};
// Inheritance is tracked from parent->child, but not from child->parentsiblings.
var inherited = ImmutableDictionary<string, MiniYamlNode.SourceLocation>.Empty.Add(kv.Key, default);
var children = ResolveInherits(kv.Value, tree, inherited);
resolved.Add(kv.Key, new MiniYaml(kv.Value.Value, children));
}
// Resolve any top-level removals (e.g. removing whole actor blocks)
var nodes = new MiniYaml("", resolved.Select(kv => new MiniYamlNode(kv.Key, kv.Value)).ToList());
return ResolveInherits(nodes, tree, new Dictionary<string, MiniYamlNode.SourceLocation>());
return ResolveInherits(nodes, tree, ImmutableDictionary<string, MiniYamlNode.SourceLocation>.Empty);
}
static void MergeIntoResolved(MiniYamlNode overrideNode, List<MiniYamlNode> existingNodes, HashSet<string> existingNodeKeys,
Dictionary<string, MiniYaml> tree, Dictionary<string, MiniYamlNode.SourceLocation> inherited)
Dictionary<string, MiniYaml> tree, ImmutableDictionary<string, MiniYamlNode.SourceLocation> inherited)
{
if (existingNodeKeys.Add(overrideNode.Key))
{
@@ -352,14 +350,11 @@ namespace OpenRA
existingNode.Value.Nodes = ResolveInherits(existingNode.Value, tree, inherited);
}
static List<MiniYamlNode> ResolveInherits(MiniYaml node, Dictionary<string, MiniYaml> tree, Dictionary<string, MiniYamlNode.SourceLocation> inherited)
static List<MiniYamlNode> ResolveInherits(MiniYaml node, Dictionary<string, MiniYaml> tree, ImmutableDictionary<string, MiniYamlNode.SourceLocation> inherited)
{
var resolved = new List<MiniYamlNode>(node.Nodes.Count);
var resolvedKeys = new HashSet<string>(node.Nodes.Count);
// Inheritance is tracked from parent->child, but not from child->parentsiblings.
inherited = new Dictionary<string, MiniYamlNode.SourceLocation>(inherited);
foreach (var n in node.Nodes)
{
if (n.Key == "Inherits" || n.Key.StartsWith("Inherits@", StringComparison.Ordinal))
@@ -368,10 +363,15 @@ namespace OpenRA
throw new YamlException(
$"{n.Location}: Parent type `{n.Value.Value}` not found");
if (inherited.TryGetValue(n.Value.Value, out var location))
throw new YamlException($"{n.Location}: Parent type `{n.Value.Value}` was already inherited by this yaml tree at {location} (note: may be from a derived tree)");
try
{
inherited = inherited.Add(n.Value.Value, n.Location);
}
catch (ArgumentException)
{
throw new YamlException($"{n.Location}: Parent type `{n.Value.Value}` was already inherited by this yaml tree at {inherited[n.Value.Value]} (note: may be from a derived tree)");
}
inherited.Add(n.Value.Value, n.Location);
foreach (var r in ResolveInherits(parent, tree, inherited))
MergeIntoResolved(r, resolved, resolvedKeys, tree, inherited);
}