98 строки
3.4 KiB
C#
98 строки
3.4 KiB
C#
using System;
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using System.Collections.Generic;
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using Mono.Cecil;
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using Mono.Linker;
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using Mono.Tuner;
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using MonoTouch.Tuner;
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using Xamarin.Tuner;
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namespace Xamarin.Linker {
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// Important: This is NOT a general purpose code remover. There are a lot of
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// cases to cover and this implementation cover only the one it requires so far.
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// IOW additional testing is REQUIRED if you change the scope of the code.
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public class RemoveRejectedTypesStep : RemoveCodeBase {
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public RemoveRejectedTypesStep ()
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{
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}
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public DerivedLinkContext Context {
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get { return context as DerivedLinkContext; }
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}
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public override SubStepTargets Targets {
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get { return SubStepTargets.Assembly; }
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}
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protected override string Name { get; } = "Removing Rejected Type";
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protected override int ErrorCode { get; } = 2220;
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public List<(string originalFullName, string replacementTypeName)> TypeReferencesToBeRemoved = new List<(string, string)> () {
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// order is important for nested types (that's why tuples are used instead of a Dictionary)
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( "UIKit.UIWebView/_UIWebViewDelegate", "_DeprecatedWebViewDelegate"),
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( "UIKit.UIWebView/UIWebViewAppearance","DeprecatedWebViewAppearance"),
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( "UIKit.IUIWebViewDelegate","IDeprecatedWebViewDelegate"),
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( "UIKit.UIWebView","DeprecatedWebView"),
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( "UIKit.UIWebViewDelegate","DeprecatedWebViewDelegate"),
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( "UIKit.UIWebViewDelegate_Extensions", "DeprecatedWebViewDelegate_Extensions"),
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( "UIKit.UIWebViewDelegateWrapper", "DeprecatedWebViewDelegateWrapper"),
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( "UIKit.UIWebViewNavigationType", "DeprecatedWebViewNavigationType"),
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};
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protected override void Process (AssemblyDefinition assembly)
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{
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// this will give us a working `get_nse`
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base.Process (assembly);
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var updated = false;
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if (Profile.IsProductAssembly (assembly)) {
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updated = true;
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foreach (var item in TypeReferencesToBeRemoved) {
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var type = assembly.MainModule.GetType (item.originalFullName);
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if (type is null)
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continue;
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type.Name = item.replacementTypeName;
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Context.AddLinkedAwayType (type);
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// we need to remove [Register], [Protocol] and [ProtocolMembers] attributes
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// and since other attributes won't make sense anymore so we remove them all
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type.CustomAttributes.Clear ();
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if (!type.IsInterface) {
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// remove IL and custom attributes (e.g. [Export])
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ProcessMethods (type);
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}
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}
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} else if (Profile.IsSdkAssembly (assembly)) {
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// note: we know the BCL does not include references to UIWebView
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// so we only need to care for (i.e. tweak) user code
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return;
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} else {
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foreach (var module in assembly.Modules) {
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foreach (var item in TypeReferencesToBeRemoved) {
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if (module.TryGetTypeReference (item.originalFullName, out var tr)) {
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tr.Name = item.replacementTypeName;
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updated = true;
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}
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}
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}
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}
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// we'll need to save (if we're not linking) this assembly
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if (updated && Annotations.GetAction (assembly) != AssemblyAction.Link)
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Annotations.SetAction (assembly, AssemblyAction.Save);
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}
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protected override void ProcessMethod (MethodDefinition method)
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{
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if (method.HasCustomAttributes)
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method.CustomAttributes.Clear ();
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// single special case: deal with method `EnsureUIWebViewDelegate`
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if (method.Name == "EnsureUIWebViewDelegate")
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method.Name = "EnsureDeprecatedWebViewDelegate";
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base.ProcessMethod (method);
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}
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}
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}
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