1046

Committed 27 Apr 2025 01:21PM UTC coverage: 92.705% (+0.6%) from 92.112%

Build # 1046

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Sholtee

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Merge branch 'v10-preview1'

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/SRC/Private/SyntaxFactories/ClassSyntaxFactoryBase.Method.cs

﻿/********************************************************************************
* ClassSyntaxFactoryBase.Method.cs                                              *
*                                                                               *
* Author: Denes Solti                                                           *
********************************************************************************/
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;

using static Microsoft.CodeAnalysis.CSharp.SyntaxFactory;

namespace Solti.Utils.Proxy.Internals
{
    internal partial class ClassSyntaxFactoryBase
    {
        private static ArgumentListSyntax ResolveArgumentList(IMethodInfo method, IEnumerable<ArgumentSyntax> arguments) => ArgumentList
        (
            arguments.ToSyntaxList
            (
                (arg, i) => method.Parameters[i].Kind switch
                {
                    ParameterKind.In => arg.WithRefKindKeyword
                    (
                        refKindKeyword: Token(SyntaxKind.InKeyword)
                    ),
                    ParameterKind.Out => arg.WithRefKindKeyword
                    (
                        refKindKeyword: Token(SyntaxKind.OutKeyword)
                    ),
                    ParameterKind.Ref => arg.WithRefKindKeyword
                    (
                        refKindKeyword: Token(SyntaxKind.RefKeyword)
                    ),
                    _ => arg
                }
            )
        );

        private ParameterListSyntax ResolveParameterList(IMethodInfo method) => ParameterList
        (
            method.Parameters.ToSyntaxList(param =>
            {
                ParameterSyntax parameter = Parameter
                (
                    Identifier(param.Name)
                )
                .WithType
                (
                    type: ResolveType(param.Type)
                );

                SyntaxKind? modifier = param.Kind switch
                {
                    ParameterKind.In => SyntaxKind.InKeyword,
                    ParameterKind.Out => SyntaxKind.OutKeyword,
                    ParameterKind.Ref => SyntaxKind.RefKeyword,
                    ParameterKind.Params => SyntaxKind.ParamsKeyword,
                    _ => null
                };

                return modifier is null ? parameter : parameter.WithModifiers
                (
                    TokenList
                    (
                        Token(modifier.Value)
                    )
                );
            })
        );

        /// <summary>
        /// <code>
        /// [[(Type)] target | [(Type)] this | Namespace.Type].Method&lt;...&gt;(...)
        /// </code>
        /// </summary>
        #if DEBUG
        internal
        #endif
        protected MemberAccessExpressionSyntax MethodAccess(ExpressionSyntax? target, IMethodInfo method, ITypeInfo? castTargetTo = null)
        {
            SimpleNameSyntax identifier = IdentifierName(method.Name);
            if (method is IGenericMethodInfo genericMethod)
                identifier = GenericName(identifier.Identifier).WithTypeArgumentList
                (
                    typeArgumentList: TypeArgumentList
                    (
                        arguments: genericMethod.GenericArguments.ToSyntaxList(ResolveType)
                    )
                );

            return SimpleMemberAccess
            (
                AmendTarget(target, method, castTargetTo),
                identifier
            );
        }


        /// <summary>
        /// <code>
        /// int Foo(T a, ref TT b)
        /// </code>
        /// </summary>
        #if DEBUG
        internal
        #endif
        protected MethodDeclarationSyntax ResolveMethodCore(IMethodInfo method)
        {
            TypeSyntax returnTypeSyntax = ResolveType(method.ReturnValue.Type);

            if (method.ReturnValue.Kind >= ParameterKind.Ref)
            {
                RefTypeSyntax refReturnTypeSyntax = RefType(returnTypeSyntax);

                if (method.ReturnValue.Kind is ParameterKind.RefReadonly)
                    refReturnTypeSyntax = refReturnTypeSyntax.WithReadOnlyKeyword
                    (
                        Token(SyntaxKind.ReadOnlyKeyword)
                    );

                returnTypeSyntax = refReturnTypeSyntax;
            }

            return MethodDeclaration
            (
                returnType: returnTypeSyntax,
                identifier: Identifier(method.Name)
            )
            .WithParameterList
            (
                ResolveParameterList(method)
            );
        }

        /// <summary>
        /// <code>
        /// int IInterface.Foo&lt;...&gt;(T a, ref TT b) [where ...]
        /// </code>
        /// or
        /// <code>
        /// public override int Foo&lt;...&gt;(T a, ref TT b) [where ...]
        /// </code>
        /// </summary>
        #if DEBUG
        internal
        #endif
        protected MethodDeclarationSyntax ResolveMethod(IMethodInfo method)
        {
            MethodDeclarationSyntax result = ResolveMethodCore(method);

            if (method.DeclaringType.Flags.HasFlag(TypeInfoFlags.IsInterface))
            {
                CheckNotStaticAbstract(method);

                result = result.WithExplicitInterfaceSpecifier
                (
                    explicitInterfaceSpecifier: ExplicitInterfaceSpecifier((NameSyntax) ResolveType(method.DeclaringType))
                );
            }
            else
            {
                List<SyntaxKind> tokens = [.. ResolveAccessModifiers(method)];

                tokens.Add(method.IsVirtual || method.IsAbstract ? SyntaxKind.OverrideKeyword : SyntaxKind.NewKeyword);

                result = result.WithModifiers
                (
                    TokenList
                    (
                        tokens.Select(Token)
                    )
                );
            }

            if (method is IGenericMethodInfo genericMethod)
            {
                result = result.WithTypeParameterList
                (
                    typeParameterList: TypeParameterList
                    (
                        parameters: genericMethod
                            .GenericArguments
                            .ToSyntaxList
                            (
                                type => TypeParameter
                                (
                                    ResolveType(type).ToFullString()
                                )
                            )
                    )
                );

                if (genericMethod.IsGenericDefinition)
                {
                    result = result.WithConstraintClauses
                    (
                        List
                        (
                            genericMethod
                                .GenericConstraints
                                .Where(constraint => GetConstraints(constraint).Any())
                                .Select
                                (
                                    constraint => TypeParameterConstraintClause
                                    (
                                        IdentifierName
                                        (
                                            constraint.Target.Name  // T, T, etc
                                        )
                                    )
                                    .WithConstraints
                                    (
                                        GetConstraints(constraint).ToSyntaxList()
                                    )
                                )
                        )
                    );

                    IEnumerable<TypeParameterConstraintSyntax> GetConstraints(IGenericConstraint constraint)
                    {
                        if (constraint.Struct)
                            yield return ClassOrStructConstraint(SyntaxKind.StructConstraint);
                        if (constraint.Reference)
                            yield return ClassOrStructConstraint(SyntaxKind.ClassConstraint);

                        //
                        // Explicit interface implementations must not specify type constraints
                        //

                        if (method.DeclaringType.Flags.HasFlag(TypeInfoFlags.IsInterface))
                            yield break;

                        if (constraint.DefaultConstructor)
                            yield return ConstructorConstraint();

                        foreach (ITypeInfo typeConstraint in constraint.ConstraintTypes)
                        {
                            yield return TypeConstraint
                            (
                                ResolveType(typeConstraint)
                            );
                        }
                    }
                }
            }

            return result;
        }

        /// <summary>
        /// <code>
        /// target.Foo(..., ref ..., ...)
        /// </code>
        /// </summary>
        #if DEBUG
        internal
        #endif
        protected InvocationExpressionSyntax InvokeMethod(IMethodInfo method, ExpressionSyntax? target = null, ITypeInfo? castTargetTo = null, params IEnumerable<ArgumentSyntax> arguments)
        {
            Debug.Assert(arguments.Count() == method.Parameters.Count);

            return InvocationExpression
            (
                expression: MethodAccess
                (
                    target,
                    method,
                    castTargetTo
                )
            )
            .WithArgumentList
            (
                ResolveArgumentList(method, arguments)
            );
        }

        /// <summary>
        /// <code>
        /// target.Foo(ref a, b, c)
        /// </code>
        /// </summary>
        #if DEBUG
        internal
        #endif
        protected InvocationExpressionSyntax InvokeMethod(IMethodInfo method, ExpressionSyntax? target = null, ITypeInfo? castTargetTo = null, params IReadOnlyList<string> arguments)
        {
            Debug.Assert(arguments.Count == method.Parameters.Count);

            return InvokeMethod
            (
                method,
                target,
                castTargetTo,
                arguments: method
                    .Parameters
                    .Select
                    (
                        (param, i) => Argument
                        (
                            expression: IdentifierName(arguments[i])
                        )
                    )
                    .ToArray()
            );
        }
    
        #if DEBUG
        internal
        #endif
        protected virtual ClassDeclarationSyntax ResolveMethods(ClassDeclarationSyntax cls, object context) => cls;

        #if DEBUG
        internal
        #endif
        protected virtual ClassDeclarationSyntax ResolveMethod(ClassDeclarationSyntax cls, object context, IMethodInfo method) => throw new NotImplementedException();
    }
}

1	/********************************************************************************
2	* ClassSyntaxFactoryBase.Method.cs *
3	* *
4	* Author: Denes Solti *
5	********************************************************************************/
6	using System;
7	using System.Collections.Generic;
8	using System.Diagnostics;
9	using System.Linq;
10
11	using Microsoft.CodeAnalysis;
12	using Microsoft.CodeAnalysis.CSharp;
13	using Microsoft.CodeAnalysis.CSharp.Syntax;
14
15	using static Microsoft.CodeAnalysis.CSharp.SyntaxFactory;
16
17	namespace Solti.Utils.Proxy.Internals
18	{
19	internal partial class ClassSyntaxFactoryBase
20	{
21	private static ArgumentListSyntax ResolveArgumentList(IMethodInfo method, IEnumerable<ArgumentSyntax> arguments) => ArgumentList	1✔
22	(	1✔
23	arguments.ToSyntaxList	1✔
24	(	1✔
25	(arg, i) => method.Parameters[i].Kind switch	1✔
26	{	1✔
27	ParameterKind.In => arg.WithRefKindKeyword	1✔
28	(	1✔
29	refKindKeyword: Token(SyntaxKind.InKeyword)	1✔
30	),	1✔
31	ParameterKind.Out => arg.WithRefKindKeyword	1✔
32	(	1✔
33	refKindKeyword: Token(SyntaxKind.OutKeyword)	1✔
34	),	1✔
35	ParameterKind.Ref => arg.WithRefKindKeyword	1✔
36	(	1✔
37	refKindKeyword: Token(SyntaxKind.RefKeyword)	1✔
38	),	1✔
39	_ => arg	1✔
40	}	1✔
41	)	1✔
42	);	1✔
43
44	private ParameterListSyntax ResolveParameterList(IMethodInfo method) => ParameterList	1✔
45	(	1✔
46	method.Parameters.ToSyntaxList(param =>	1✔
47	{	1✔
48	ParameterSyntax parameter = Parameter	1✔
49	(	1✔
50	Identifier(param.Name)	1✔
51	)	1✔
52	.WithType	1✔
53	(	1✔
54	type: ResolveType(param.Type)	1✔
55	);	1✔
56		1✔
57	SyntaxKind? modifier = param.Kind switch	1✔
58	{	1✔
59	ParameterKind.In => SyntaxKind.InKeyword,	1✔
60	ParameterKind.Out => SyntaxKind.OutKeyword,	1✔
61	ParameterKind.Ref => SyntaxKind.RefKeyword,	1✔
62	ParameterKind.Params => SyntaxKind.ParamsKeyword,	1✔
63	_ => null	1✔
64	};	1✔
65		1✔
66	return modifier is null ? parameter : parameter.WithModifiers	1✔
67	(	1✔
68	TokenList	1✔
69	(	1✔
70	Token(modifier.Value)	1✔
71	)	1✔
72	);	1✔
73	})	1✔
74	);	1✔
75
76	/// <summary>
77	/// <code>
78	/// [[(Type)] target \| [(Type)] this \| Namespace.Type].Method<...>(...)
79	/// </code>
80	/// </summary>
81	#if DEBUG
82	internal
83	#endif
84	protected MemberAccessExpressionSyntax MethodAccess(ExpressionSyntax? target, IMethodInfo method, ITypeInfo? castTargetTo = null)
85	{	1✔
86	SimpleNameSyntax identifier = IdentifierName(method.Name);	1✔
87	if (method is IGenericMethodInfo genericMethod)	1✔
88	identifier = GenericName(identifier.Identifier).WithTypeArgumentList	1✔
89	(	1✔
90	typeArgumentList: TypeArgumentList	1✔
91	(	1✔
92	arguments: genericMethod.GenericArguments.ToSyntaxList(ResolveType)	1✔
93	)	1✔
94	);	1✔
95
96	return SimpleMemberAccess	1✔
97	(	1✔
98	AmendTarget(target, method, castTargetTo),	1✔
99	identifier	1✔
100	);	1✔
101	}	1✔
102
103
104	/// <summary>
105	/// <code>
106	/// int Foo(T a, ref TT b)
107	/// </code>
108	/// </summary>
109	#if DEBUG
110	internal
111	#endif
112	protected MethodDeclarationSyntax ResolveMethodCore(IMethodInfo method)
113	{	1✔
114	TypeSyntax returnTypeSyntax = ResolveType(method.ReturnValue.Type);	1✔
115
116	if (method.ReturnValue.Kind >= ParameterKind.Ref)	1✔
117	{	1✔
118	RefTypeSyntax refReturnTypeSyntax = RefType(returnTypeSyntax);	1✔
119
120	if (method.ReturnValue.Kind is ParameterKind.RefReadonly)	1✔
121	refReturnTypeSyntax = refReturnTypeSyntax.WithReadOnlyKeyword	1✔
122	(	1✔
123	Token(SyntaxKind.ReadOnlyKeyword)	1✔
124	);	1✔
125
126	returnTypeSyntax = refReturnTypeSyntax;	1✔
127	}	1✔
128
129	return MethodDeclaration	1✔
130	(	1✔
131	returnType: returnTypeSyntax,	1✔
132	identifier: Identifier(method.Name)	1✔
133	)	1✔
134	.WithParameterList	1✔
135	(	1✔
136	ResolveParameterList(method)	1✔
137	);	1✔
138	}	1✔
139
140	/// <summary>
141	/// <code>
142	/// int IInterface.Foo<...>(T a, ref TT b) [where ...]
143	/// </code>
144	/// or
145	/// <code>
146	/// public override int Foo<...>(T a, ref TT b) [where ...]
147	/// </code>
148	/// </summary>
149	#if DEBUG
150	internal
151	#endif
152	protected MethodDeclarationSyntax ResolveMethod(IMethodInfo method)
153	{	1✔
154	MethodDeclarationSyntax result = ResolveMethodCore(method);	1✔
155
156	if (method.DeclaringType.Flags.HasFlag(TypeInfoFlags.IsInterface))	1✔
157	{	1✔
158	CheckNotStaticAbstract(method);	1✔
159
160	result = result.WithExplicitInterfaceSpecifier	1✔
161	(	1✔
162	explicitInterfaceSpecifier: ExplicitInterfaceSpecifier((NameSyntax) ResolveType(method.DeclaringType))	1✔
163	);	1✔
164	}	1✔
165	else
166	{	1✔
167	List<SyntaxKind> tokens = [.. ResolveAccessModifiers(method)];	1✔
168
169	tokens.Add(method.IsVirtual \|\| method.IsAbstract ? SyntaxKind.OverrideKeyword : SyntaxKind.NewKeyword);	1✔
170
171	result = result.WithModifiers	×
172	(	×
173	TokenList	×
174	(	×
175	tokens.Select(Token)	×
176	)	×
177	);	×
178	}	1✔
179
180	if (method is IGenericMethodInfo genericMethod)	1✔
181	{	1✔
182	result = result.WithTypeParameterList	1✔
183	(	1✔
184	typeParameterList: TypeParameterList	1✔
185	(	1✔
186	parameters: genericMethod	1✔
187	.GenericArguments	1✔
188	.ToSyntaxList	1✔
189	(	1✔
190	type => TypeParameter	1✔
191	(	1✔
192	ResolveType(type).ToFullString()	1✔
193	)	1✔
194	)	1✔
195	)	1✔
196	);	1✔
197
198	if (genericMethod.IsGenericDefinition)	1✔
199	{	1✔
200	result = result.WithConstraintClauses	1✔
201	(	1✔
202	List	1✔
203	(	1✔
204	genericMethod	1✔
205	.GenericConstraints	1✔
206	.Where(constraint => GetConstraints(constraint).Any())	1✔
207	.Select	1✔
208	(	1✔
209	constraint => TypeParameterConstraintClause	1✔
210	(	1✔
211	IdentifierName	1✔
212	(	1✔
213	constraint.Target.Name // T, T, etc	1✔
214	)	1✔
215	)	1✔
216	.WithConstraints	1✔
217	(	1✔
218	GetConstraints(constraint).ToSyntaxList()	1✔
219	)	1✔
220	)	1✔
221	)	1✔
222	);	1✔
223
224	IEnumerable<TypeParameterConstraintSyntax> GetConstraints(IGenericConstraint constraint)
225	{	1✔
226	if (constraint.Struct)	1✔
227	yield return ClassOrStructConstraint(SyntaxKind.StructConstraint);	1✔
228	if (constraint.Reference)	1✔
229	yield return ClassOrStructConstraint(SyntaxKind.ClassConstraint);	1✔
230
231	//
232	// Explicit interface implementations must not specify type constraints
233	//
234
235	if (method.DeclaringType.Flags.HasFlag(TypeInfoFlags.IsInterface))	1✔
236	yield break;	1✔
237
238	if (constraint.DefaultConstructor)	1✔
239	yield return ConstructorConstraint();	1✔
240
241	foreach (ITypeInfo typeConstraint in constraint.ConstraintTypes)	1✔
242	{	1✔
243	yield return TypeConstraint	1✔
244	(	1✔
245	ResolveType(typeConstraint)	1✔
246	);	1✔
247	}	1✔
248	}	1✔
249	}	1✔
250	}	1✔
251
252	return result;	1✔
253	}	1✔
254
255	/// <summary>
256	/// <code>
257	/// target.Foo(..., ref ..., ...)
258	/// </code>
259	/// </summary>
260	#if DEBUG
261	internal
262	#endif
263	protected InvocationExpressionSyntax InvokeMethod(IMethodInfo method, ExpressionSyntax? target = null, ITypeInfo? castTargetTo = null, params IEnumerable<ArgumentSyntax> arguments)
264	{	1✔
265	Debug.Assert(arguments.Count() == method.Parameters.Count);	1✔
266
267	return InvocationExpression	1✔
268	(	1✔
269	expression: MethodAccess	1✔
270	(	1✔
271	target,	1✔
272	method,	1✔
273	castTargetTo	1✔
274	)	1✔
275	)	1✔
276	.WithArgumentList	1✔
277	(	1✔
278	ResolveArgumentList(method, arguments)	1✔
279	);	1✔
280	}	1✔
281
282	/// <summary>
283	/// <code>
284	/// target.Foo(ref a, b, c)
285	/// </code>
286	/// </summary>
287	#if DEBUG
288	internal
289	#endif
290	protected InvocationExpressionSyntax InvokeMethod(IMethodInfo method, ExpressionSyntax? target = null, ITypeInfo? castTargetTo = null, params IReadOnlyList<string> arguments)
291	{	1✔
292	Debug.Assert(arguments.Count == method.Parameters.Count);	1✔
293
294	return InvokeMethod	1✔
295	(	1✔
296	method,	1✔
297	target,	1✔
298	castTargetTo,	1✔
299	arguments: method	1✔
300	.Parameters	1✔
301	.Select	1✔
302	(	1✔
303	(param, i) => Argument	1✔
304	(	1✔
305	expression: IdentifierName(arguments[i])	1✔
306	)	1✔
307	)	1✔
308	.ToArray()	1✔
309	);	1✔
310	}	1✔
311
312	#if DEBUG
313	internal
314	#endif
315	protected virtual ClassDeclarationSyntax ResolveMethods(ClassDeclarationSyntax cls, object context) => cls;	1✔
316
317	#if DEBUG
318	internal
319	#endif
320	protected virtual ClassDeclarationSyntax ResolveMethod(ClassDeclarationSyntax cls, object context, IMethodInfo method) => throw new NotImplementedException();	×
321	}
322	}

Sholtee / proxygen / 1046

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