csharpc-sharpdotnetxamlavaloniauicross-platformcross-platform-xamlavaloniaguimulti-platformuser-interfacedotnetcore
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
360 lines
19 KiB
360 lines
19 KiB
using System;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Reflection;
|
|
using System.Text;
|
|
using Avalonia.Markup.Xaml.XamlIl.CompilerExtensions;
|
|
using Microsoft.Build.Framework;
|
|
using Mono.Cecil;
|
|
using XamlIl.TypeSystem;
|
|
using Avalonia.Utilities;
|
|
using Mono.Cecil.Cil;
|
|
using Mono.Cecil.Rocks;
|
|
using XamlIl;
|
|
using XamlIl.Ast;
|
|
using XamlIl.Parsers;
|
|
using XamlIl.Transform;
|
|
using FieldAttributes = Mono.Cecil.FieldAttributes;
|
|
using MethodAttributes = Mono.Cecil.MethodAttributes;
|
|
using TypeAttributes = Mono.Cecil.TypeAttributes;
|
|
|
|
namespace Avalonia.Build.Tasks
|
|
{
|
|
|
|
public static partial class XamlCompilerTaskExecutor
|
|
{
|
|
static bool CheckXamlName(IResource r) => r.Name.ToLowerInvariant().EndsWith(".xaml")
|
|
|| r.Name.ToLowerInvariant().EndsWith(".paml");
|
|
|
|
public class CompileResult
|
|
{
|
|
public bool Success { get; set; }
|
|
public bool WrittenFile { get; }
|
|
|
|
public CompileResult(bool success, bool writtenFile = false)
|
|
{
|
|
Success = success;
|
|
WrittenFile = writtenFile;
|
|
}
|
|
}
|
|
|
|
public static CompileResult Compile(IBuildEngine engine, string input, string[] references, string projectDirectory,
|
|
string output, bool verifyIl)
|
|
{
|
|
var typeSystem = new CecilTypeSystem(references.Concat(new[] {input}), input);
|
|
var asm = typeSystem.TargetAssemblyDefinition;
|
|
var emres = new EmbeddedResources(asm);
|
|
var avares = new AvaloniaResources(asm, projectDirectory);
|
|
if (avares.Resources.Count(CheckXamlName) == 0 && emres.Resources.Count(CheckXamlName) == 0)
|
|
// Nothing to do
|
|
return new CompileResult(true);
|
|
|
|
var xamlLanguage = AvaloniaXamlIlLanguage.Configure(typeSystem);
|
|
var compilerConfig = new XamlIlTransformerConfiguration(typeSystem,
|
|
typeSystem.TargetAssembly,
|
|
xamlLanguage,
|
|
XamlIlXmlnsMappings.Resolve(typeSystem, xamlLanguage),
|
|
AvaloniaXamlIlLanguage.CustomValueConverter);
|
|
|
|
|
|
var contextDef = new TypeDefinition("CompiledAvaloniaXaml", "XamlIlContext",
|
|
TypeAttributes.Class, asm.MainModule.TypeSystem.Object);
|
|
asm.MainModule.Types.Add(contextDef);
|
|
|
|
var contextClass = XamlIlContextDefinition.GenerateContextClass(typeSystem.CreateTypeBuilder(contextDef), typeSystem,
|
|
xamlLanguage);
|
|
|
|
var compiler = new AvaloniaXamlIlCompiler(compilerConfig, contextClass) { EnableIlVerification = verifyIl };
|
|
|
|
var editorBrowsableAttribute = typeSystem
|
|
.GetTypeReference(typeSystem.FindType("System.ComponentModel.EditorBrowsableAttribute"))
|
|
.Resolve();
|
|
var editorBrowsableCtor =
|
|
asm.MainModule.ImportReference(editorBrowsableAttribute.GetConstructors()
|
|
.First(c => c.Parameters.Count == 1));
|
|
|
|
var runtimeHelpers = typeSystem.GetType("Avalonia.Markup.Xaml.XamlIl.Runtime.XamlIlRuntimeHelpers");
|
|
var createRootServiceProviderMethod = asm.MainModule.ImportReference(
|
|
typeSystem.GetTypeReference(runtimeHelpers).Resolve().Methods
|
|
.First(x => x.Name == "CreateRootServiceProviderV2"));
|
|
|
|
var loaderDispatcherDef = new TypeDefinition("CompiledAvaloniaXaml", "!XamlLoader",
|
|
TypeAttributes.Class, asm.MainModule.TypeSystem.Object);
|
|
|
|
|
|
loaderDispatcherDef.CustomAttributes.Add(new CustomAttribute(editorBrowsableCtor)
|
|
{
|
|
ConstructorArguments = {new CustomAttributeArgument(editorBrowsableCtor.Parameters[0].ParameterType, 1)}
|
|
});
|
|
|
|
|
|
var loaderDispatcherMethod = new MethodDefinition("TryLoad",
|
|
MethodAttributes.Static | MethodAttributes.Public,
|
|
asm.MainModule.TypeSystem.Object)
|
|
{
|
|
Parameters = {new ParameterDefinition(asm.MainModule.TypeSystem.String)}
|
|
};
|
|
loaderDispatcherDef.Methods.Add(loaderDispatcherMethod);
|
|
asm.MainModule.Types.Add(loaderDispatcherDef);
|
|
|
|
var stringEquals = asm.MainModule.ImportReference(asm.MainModule.TypeSystem.String.Resolve().Methods.First(
|
|
m =>
|
|
m.IsStatic && m.Name == "Equals" && m.Parameters.Count == 2 &&
|
|
m.ReturnType.FullName == "System.Boolean"
|
|
&& m.Parameters[0].ParameterType.FullName == "System.String"
|
|
&& m.Parameters[1].ParameterType.FullName == "System.String"));
|
|
|
|
bool CompileGroup(IResourceGroup group)
|
|
{
|
|
var typeDef = new TypeDefinition("CompiledAvaloniaXaml", "!"+ group.Name,
|
|
TypeAttributes.Class, asm.MainModule.TypeSystem.Object);
|
|
|
|
typeDef.CustomAttributes.Add(new CustomAttribute(editorBrowsableCtor)
|
|
{
|
|
ConstructorArguments = {new CustomAttributeArgument(editorBrowsableCtor.Parameters[0].ParameterType, 1)}
|
|
});
|
|
asm.MainModule.Types.Add(typeDef);
|
|
var builder = typeSystem.CreateTypeBuilder(typeDef);
|
|
|
|
foreach (var res in group.Resources.Where(CheckXamlName))
|
|
{
|
|
try
|
|
{
|
|
// StreamReader is needed here to handle BOM
|
|
var xaml = new StreamReader(new MemoryStream(res.FileContents)).ReadToEnd();
|
|
var parsed = XDocumentXamlIlParser.Parse(xaml);
|
|
|
|
var initialRoot = (XamlIlAstObjectNode)parsed.Root;
|
|
|
|
|
|
var precompileDirective = initialRoot.Children.OfType<XamlIlAstXmlDirective>()
|
|
.FirstOrDefault(d => d.Namespace == XamlNamespaces.Xaml2006 && d.Name == "Precompile");
|
|
if (precompileDirective != null)
|
|
{
|
|
var precompileText = (precompileDirective.Values[0] as XamlIlAstTextNode)?.Text.Trim()
|
|
.ToLowerInvariant();
|
|
if (precompileText == "false")
|
|
continue;
|
|
if (precompileText != "true")
|
|
throw new XamlIlParseException("Invalid value for x:Precompile", precompileDirective);
|
|
}
|
|
|
|
var classDirective = initialRoot.Children.OfType<XamlIlAstXmlDirective>()
|
|
.FirstOrDefault(d => d.Namespace == XamlNamespaces.Xaml2006 && d.Name == "Class");
|
|
IXamlIlType classType = null;
|
|
if (classDirective != null)
|
|
{
|
|
if (classDirective.Values.Count != 1 || !(classDirective.Values[0] is XamlIlAstTextNode tn))
|
|
throw new XamlIlParseException("x:Class should have a string value", classDirective);
|
|
classType = typeSystem.TargetAssembly.FindType(tn.Text);
|
|
if (classType == null)
|
|
throw new XamlIlParseException($"Unable to find type `{tn.Text}`", classDirective);
|
|
compiler.OverrideRootType(parsed,
|
|
new XamlIlAstClrTypeReference(classDirective, classType, false));
|
|
initialRoot.Children.Remove(classDirective);
|
|
}
|
|
|
|
|
|
compiler.Transform(parsed);
|
|
var populateName = classType == null ? "Populate:" + res.Name : "!XamlIlPopulate";
|
|
var buildName = classType == null ? "Build:" + res.Name : null;
|
|
|
|
var classTypeDefinition =
|
|
classType == null ? null : typeSystem.GetTypeReference(classType).Resolve();
|
|
|
|
|
|
var populateBuilder = classTypeDefinition == null ?
|
|
builder :
|
|
typeSystem.CreateTypeBuilder(classTypeDefinition);
|
|
compiler.Compile(parsed, contextClass,
|
|
compiler.DefinePopulateMethod(populateBuilder, parsed, populateName,
|
|
classTypeDefinition == null),
|
|
buildName == null ? null : compiler.DefineBuildMethod(builder, parsed, buildName, true),
|
|
builder.DefineSubType(compilerConfig.WellKnownTypes.Object, "NamespaceInfo:" + res.Name,
|
|
true),
|
|
(closureName, closureBaseType) =>
|
|
populateBuilder.DefineSubType(closureBaseType, closureName, false),
|
|
res.Uri, res
|
|
);
|
|
|
|
|
|
if (classTypeDefinition != null)
|
|
{
|
|
var compiledPopulateMethod = typeSystem.GetTypeReference(populateBuilder).Resolve()
|
|
.Methods.First(m => m.Name == populateName);
|
|
|
|
var designLoaderFieldType = typeSystem
|
|
.GetType("System.Action`1")
|
|
.MakeGenericType(typeSystem.GetType("System.Object"));
|
|
|
|
var designLoaderFieldTypeReference = (GenericInstanceType)typeSystem.GetTypeReference(designLoaderFieldType);
|
|
designLoaderFieldTypeReference.GenericArguments[0] =
|
|
asm.MainModule.ImportReference(designLoaderFieldTypeReference.GenericArguments[0]);
|
|
designLoaderFieldTypeReference = (GenericInstanceType)
|
|
asm.MainModule.ImportReference(designLoaderFieldTypeReference);
|
|
|
|
var designLoaderLoad =
|
|
typeSystem.GetMethodReference(
|
|
designLoaderFieldType.Methods.First(m => m.Name == "Invoke"));
|
|
designLoaderLoad =
|
|
asm.MainModule.ImportReference(designLoaderLoad);
|
|
designLoaderLoad.DeclaringType = designLoaderFieldTypeReference;
|
|
|
|
var designLoaderField = new FieldDefinition("!XamlIlPopulateOverride",
|
|
FieldAttributes.Static | FieldAttributes.Private, designLoaderFieldTypeReference);
|
|
classTypeDefinition.Fields.Add(designLoaderField);
|
|
|
|
const string TrampolineName = "!XamlIlPopulateTrampoline";
|
|
var trampoline = new MethodDefinition(TrampolineName,
|
|
MethodAttributes.Static | MethodAttributes.Private, asm.MainModule.TypeSystem.Void);
|
|
trampoline.Parameters.Add(new ParameterDefinition(classTypeDefinition));
|
|
classTypeDefinition.Methods.Add(trampoline);
|
|
|
|
var regularStart = Instruction.Create(OpCodes.Call, createRootServiceProviderMethod);
|
|
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Ldsfld, designLoaderField));
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Brfalse, regularStart));
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Ldsfld, designLoaderField));
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Call, designLoaderLoad));
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
|
|
|
|
trampoline.Body.Instructions.Add(regularStart);
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Call, compiledPopulateMethod));
|
|
trampoline.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
|
|
CopyDebugDocument(trampoline, compiledPopulateMethod);
|
|
|
|
var foundXamlLoader = false;
|
|
// Find AvaloniaXamlLoader.Load(this) and replace it with !XamlIlPopulateTrampoline(this)
|
|
foreach (var method in classTypeDefinition.Methods
|
|
.Where(m => !m.Attributes.HasFlag(MethodAttributes.Static)))
|
|
{
|
|
var i = method.Body.Instructions;
|
|
for (var c = 1; c < i.Count; c++)
|
|
{
|
|
if (i[c].OpCode == OpCodes.Call)
|
|
{
|
|
var op = i[c].Operand as MethodReference;
|
|
|
|
// TODO: Throw an error
|
|
// This usually happens when same XAML resource was added twice for some weird reason
|
|
// We currently support it for dual-named default theme resource
|
|
if (op != null
|
|
&& op.Name == TrampolineName)
|
|
{
|
|
foundXamlLoader = true;
|
|
break;
|
|
}
|
|
if (op != null
|
|
&& op.Name == "Load"
|
|
&& op.Parameters.Count == 1
|
|
&& op.Parameters[0].ParameterType.FullName == "System.Object"
|
|
&& op.DeclaringType.FullName == "Avalonia.Markup.Xaml.AvaloniaXamlLoader")
|
|
{
|
|
if (MatchThisCall(i, c - 1))
|
|
{
|
|
i[c].Operand = trampoline;
|
|
foundXamlLoader = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!foundXamlLoader)
|
|
{
|
|
var ctors = classTypeDefinition.GetConstructors()
|
|
.Where(c => !c.IsStatic).ToList();
|
|
// We can inject xaml loader into default constructor
|
|
if (ctors.Count == 1 && ctors[0].Body.Instructions.Count(o=>o.OpCode != OpCodes.Nop) == 3)
|
|
{
|
|
var i = ctors[0].Body.Instructions;
|
|
var retIdx = i.IndexOf(i.Last(x => x.OpCode == OpCodes.Ret));
|
|
i.Insert(retIdx, Instruction.Create(OpCodes.Call, trampoline));
|
|
i.Insert(retIdx, Instruction.Create(OpCodes.Ldarg_0));
|
|
}
|
|
else
|
|
{
|
|
throw new InvalidProgramException(
|
|
$"No call to AvaloniaXamlLoader.Load(this) call found anywhere in the type {classType.FullName} and type seems to have custom constructors.");
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if (buildName != null || classTypeDefinition != null)
|
|
{
|
|
var compiledBuildMethod = buildName == null ?
|
|
null :
|
|
typeSystem.GetTypeReference(builder).Resolve()
|
|
.Methods.First(m => m.Name == buildName);
|
|
var parameterlessConstructor = compiledBuildMethod != null ?
|
|
null :
|
|
classTypeDefinition.GetConstructors().FirstOrDefault(c =>
|
|
c.IsPublic && !c.IsStatic && !c.HasParameters);
|
|
|
|
if (compiledBuildMethod != null || parameterlessConstructor != null)
|
|
{
|
|
var i = loaderDispatcherMethod.Body.Instructions;
|
|
var nop = Instruction.Create(OpCodes.Nop);
|
|
i.Add(Instruction.Create(OpCodes.Ldarg_0));
|
|
i.Add(Instruction.Create(OpCodes.Ldstr, res.Uri));
|
|
i.Add(Instruction.Create(OpCodes.Call, stringEquals));
|
|
i.Add(Instruction.Create(OpCodes.Brfalse, nop));
|
|
if (parameterlessConstructor != null)
|
|
i.Add(Instruction.Create(OpCodes.Newobj, parameterlessConstructor));
|
|
else
|
|
{
|
|
i.Add(Instruction.Create(OpCodes.Call, createRootServiceProviderMethod));
|
|
i.Add(Instruction.Create(OpCodes.Call, compiledBuildMethod));
|
|
}
|
|
|
|
i.Add(Instruction.Create(OpCodes.Ret));
|
|
i.Add(nop);
|
|
}
|
|
}
|
|
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
int lineNumber = 0, linePosition = 0;
|
|
if (e is XamlIlParseException xe)
|
|
{
|
|
lineNumber = xe.LineNumber;
|
|
linePosition = xe.LinePosition;
|
|
}
|
|
engine.LogErrorEvent(new BuildErrorEventArgs("Avalonia", "XAMLIL", res.FilePath,
|
|
lineNumber, linePosition, lineNumber, linePosition,
|
|
e.Message, "", "Avalonia"));
|
|
return false;
|
|
}
|
|
res.Remove();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (emres.Resources.Count(CheckXamlName) != 0)
|
|
if (!CompileGroup(emres))
|
|
return new CompileResult(false);
|
|
if (avares.Resources.Count(CheckXamlName) != 0)
|
|
{
|
|
if (!CompileGroup(avares))
|
|
return new CompileResult(false);
|
|
avares.Save();
|
|
}
|
|
|
|
loaderDispatcherMethod.Body.Instructions.Add(Instruction.Create(OpCodes.Ldnull));
|
|
loaderDispatcherMethod.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
|
|
|
|
asm.Write(output, new WriterParameters
|
|
{
|
|
WriteSymbols = asm.MainModule.HasSymbols
|
|
});
|
|
|
|
return new CompileResult(true, true);
|
|
}
|
|
|
|
}
|
|
}
|
|
|