MethodBuilder¶

Create method declarations.

See also: Emit Overview | TypeBuilder | BodyBuilder

Factory Methods¶

Method	Description
`For(string name)`	Create a method with the given name
`Parse(string signature)`	Parse from signature (e.g., `"public async Task<int> GetCount()"`)

Return Type¶

method.WithReturnType("void")
method.WithReturnType("string")
method.WithReturnType("Task<int>")
method.WithReturnType("IAsyncEnumerable<Order>")

Accessibility & Modifiers¶

method.WithAccessibility(Accessibility.Public)
method.WithAccessibility("public")  // from snapshot or ValidSymbol.AccessibilityString
method.AsStatic()
method.AsVirtual()
method.AsOverride()
method.AsAbstract()
method.Async()

Explicit Interface Implementation¶

Generate methods with explicit interface syntax (IInterface.Method):

method.ExplicitlyImplements("IMyInterface")
// Produces: void IMyInterface.DoWork() { ... }

Explicit implementations automatically have no accessibility modifier.

Partial Methods Without Accessibility¶

Use Accessibility.NotApplicable for partial method declarations that should have no access modifier:

MethodBuilder
    .Parse("partial void OnModelCreatingPartial(ModelBuilder modelBuilder)")
    .WithAccessibility(Accessibility.NotApplicable)
// Produces: partial void OnModelCreatingPartial(ModelBuilder modelBuilder);

This prevents the builder from emitting a default private modifier on the declaration.

Type Parameters¶

method.AddTypeParameter("T")
method.AddTypeParameter("T", tp => tp
    .AsClass()
    .WithNewConstraint())
method.AddTypeParameter(typeParameterBuilder)

Parameters¶

method.AddParameter("name", "string")
method.AddParameter("count", "int", p => p.WithDefaultValue("0"))
method.AddParameter(parameterBuilder)

Body¶

// Block body
method.WithBody(body => body
    .AddStatement("Console.WriteLine(\"Starting\");")
    .AddStatement("DoWork();")
    .AddReturn("result"))

// Expression body
method.WithExpressionBody("_name")

// Append to expression body
method.AppendExpressionBody(".ToList()")

Attributes & XML Documentation¶

method.WithAttribute("HttpGet")
method.WithAttribute("Route", attr => attr.WithArgument("\"/api/items\""))

method.WithXmlDoc("Gets the customer name.")
method.WithXmlDoc(doc => doc
    .Summary("Gets a customer by identifier.")
    .Param("id", "The customer identifier.")
    .Returns("The customer if found; otherwise, null."))

Usings¶

method.AddUsing("System.Linq")
method.AddUsings("System", "System.Threading.Tasks")

Properties¶

method.Name             // string
method.ReturnType       // string?
method.ExtensionTargetType // string? — the type being extended (for extension methods)