lambda capture

Program.cs

using System;

namespace ConsoleApp
{
    class Program
    {
        static void Main()
        {
            var a = 1;
            {
                var b = 2;
                {
                    var c = 3;
                    var func = (Func<int>)(() => a + b + c);
                    func.Invoke();
                }
            }

        }
    }
}

Program.il

.class private auto ansi beforefieldinit ConsoleApp.Program
	extends [System.Runtime]System.Object
{
	// Nested Types
	.class nested private auto ansi sealed beforefieldinit '<>c__DisplayClass0_0'
		extends [System.Runtime]System.Object
	{
		.custom instance void [System.Runtime]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public int32 a

		// Methods
		.method public hidebysig specialname rtspecialname 
			instance void .ctor () cil managed 
		{
			.maxstack 8

			IL_0000: ldarg.0
			IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
			IL_0006: ret
		} // end of method '<>c__DisplayClass0_0'::.ctor

	} // end of class <>c__DisplayClass0_0

	.class nested private auto ansi sealed beforefieldinit '<>c__DisplayClass0_1'
		extends [System.Runtime]System.Object
	{
		.custom instance void [System.Runtime]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public int32 b
		.field public class ConsoleApp.Program/'<>c__DisplayClass0_0' 'CS$<>8__locals1'

		// Methods
		.method public hidebysig specialname rtspecialname 
			instance void .ctor () cil managed 
		{
			.maxstack 8

			IL_0000: ldarg.0
			IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
			IL_0006: ret
		} // end of method '<>c__DisplayClass0_1'::.ctor

	} // end of class <>c__DisplayClass0_1

	.class nested private auto ansi sealed beforefieldinit '<>c__DisplayClass0_2'
		extends [System.Runtime]System.Object
	{
		.custom instance void [System.Runtime]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public int32 c
		.field public class ConsoleApp.Program/'<>c__DisplayClass0_1' 'CS$<>8__locals2'

		// Methods
		.method public hidebysig specialname rtspecialname 
			instance void .ctor () cil managed 
		{
			.maxstack 8

			IL_0000: ldarg.0
			IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
			IL_0006: ret
		} // end of method '<>c__DisplayClass0_2'::.ctor

		.method assembly hidebysig 
			instance int32 '<Main>b__0' () cil managed 
		{
			.maxstack 8

			IL_0000: ldarg.0
			IL_0001: ldfld     class ConsoleApp.Program/'<>c__DisplayClass0_1' ConsoleApp.Program/'<>c__DisplayClass0_2'::'CS$<>8__locals2'
			IL_0006: ldfld     class ConsoleApp.Program/'<>c__DisplayClass0_0' ConsoleApp.Program/'<>c__DisplayClass0_1'::'CS$<>8__locals1'
			IL_000B: ldfld     int32 ConsoleApp.Program/'<>c__DisplayClass0_0'::a
			IL_0010: ldarg.0
			IL_0011: ldfld     class ConsoleApp.Program/'<>c__DisplayClass0_1' ConsoleApp.Program/'<>c__DisplayClass0_2'::'CS$<>8__locals2'
			IL_0016: ldfld     int32 ConsoleApp.Program/'<>c__DisplayClass0_1'::b
			IL_001B: add
			IL_001C: ldarg.0
			IL_001D: ldfld     int32 ConsoleApp.Program/'<>c__DisplayClass0_2'::c
			IL_0022: add
			IL_0023: ret
		} // end of method '<>c__DisplayClass0_2'::'<Main>b__0'

	} // end of class <>c__DisplayClass0_2


	// Methods
	.method public hidebysig specialname rtspecialname 
		instance void .ctor () cil managed 
	{
		.maxstack 8

		IL_0000: ldarg.0
		IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
		IL_0006: ret
	} // end of method Program::.ctor

	.method private hidebysig static 
		void Main () cil managed 
	{
		.maxstack 3
		.entrypoint
		.locals init (
			[0] class ConsoleApp.Program/'<>c__DisplayClass0_0',
			[1] class ConsoleApp.Program/'<>c__DisplayClass0_1'
		)

		IL_0000: newobj    instance void ConsoleApp.Program/'<>c__DisplayClass0_0'::.ctor()
		IL_0005: stloc.0
		IL_0006: ldloc.0
		IL_0007: ldc.i4.1
		IL_0008: stfld     int32 ConsoleApp.Program/'<>c__DisplayClass0_0'::a
		IL_000D: newobj    instance void ConsoleApp.Program/'<>c__DisplayClass0_1'::.ctor()
		IL_0012: stloc.1
		IL_0013: ldloc.1
		IL_0014: ldloc.0
		IL_0015: stfld     class ConsoleApp.Program/'<>c__DisplayClass0_0' ConsoleApp.Program/'<>c__DisplayClass0_1'::'CS$<>8__locals1'
		IL_001A: ldloc.1
		IL_001B: ldc.i4.2
		IL_001C: stfld     int32 ConsoleApp.Program/'<>c__DisplayClass0_1'::b
		IL_0021: newobj    instance void ConsoleApp.Program/'<>c__DisplayClass0_2'::.ctor()
		IL_0026: dup
		IL_0027: ldloc.1
		IL_0028: stfld     class ConsoleApp.Program/'<>c__DisplayClass0_1' ConsoleApp.Program/'<>c__DisplayClass0_2'::'CS$<>8__locals2'
		IL_002D: dup
		IL_002E: ldc.i4.3
		IL_002F: stfld     int32 ConsoleApp.Program/'<>c__DisplayClass0_2'::c
		IL_0034: ldftn     instance int32 ConsoleApp.Program/'<>c__DisplayClass0_2'::'<Main>b__0'()
		IL_003A: newobj    instance void class [System.Runtime]System.Func`1<int32>::.ctor(object, native int)
		IL_003F: callvirt  instance !0 class [System.Runtime]System.Func`1<int32>::Invoke()
		IL_0044: pop
		IL_0045: ret
	} // end of method Program::Main

} // end of class ConsoleApp.Program