/// <summary>
/// Primary method for emitting integer switch jump table
/// </summary>
/// <param name="caseLabels">switch case labels</param>
/// <param name="fallThroughLabel">fall through label for the jump table</param>
/// <param name="keyArgumentIndex">Index of the parameter to switch on.
/// This value has already been loaded onto the execution stack.
/// </param>
/// <param name="keyTypeCode">Primitive type code of switch key</param>
internal void EmitIntegerSwitchJumpTable(
KeyValuePair <ConstantValue, object>[] caseLabels,
object fallThroughLabel,
int keyArgumentIndex,
Microsoft.Cci.PrimitiveTypeCode keyTypeCode)
{
Debug.Assert(caseLabels.Length > 0);
Debug.Assert(keyTypeCode != Microsoft.Cci.PrimitiveTypeCode.String);
// CONSIDER: SwitchIntegralJumpTableEmitter will modify the caseLabels array by sorting it.
// CONSIDER: Currently, only purpose of creating this caseLabels array is for Emitting the jump table.
// CONSIDER: If this requirement changes, we may want to pass in ArrayBuilder<KeyValuePair<ConstantValue, object>> instead.
var emitter = new SwitchIntegralJumpTableEmitter(this, caseLabels, fallThroughLabel, keyTypeCode, null, keyArgumentIndex);
emitter.EmitJumpTable();
}
internal SwitchIntegralJumpTableEmitter(
ILBuilder builder,
KeyValuePair <ConstantValue, object>[] caseLabels,
object fallThroughLabel,
Microsoft.Cci.PrimitiveTypeCode keyTypeCode,
LocalDefinition keyLocal = null,
int keyArgument = -1)
{
Debug.Assert(keyArgument == -1 ^ keyLocal == null, "cannot have both valid key argument and valid key local");
this.builder = builder;
this.keyLocal = keyLocal;
this.keyArgument = keyArgument;
this.keyTypeCode = keyTypeCode;
this.fallThroughLabel = fallThroughLabel;
// Sort the switch case labels, see comments below for more details.
Debug.Assert(caseLabels.Length > 0);
Array.Sort(caseLabels, CompareIntegralSwitchLabels);
sortedCaseLabels = ImmutableArray.Create <KeyValuePair <ConstantValue, object> >(caseLabels);
}
public void PrimitiveType(PrimitiveTypeCode type)
{
switch (type)
{
case PrimitiveTypeCode.Boolean: Boolean(); return;
case PrimitiveTypeCode.Char: Char(); return;
case PrimitiveTypeCode.Int8: Int8(); return;
case PrimitiveTypeCode.UInt8: UInt8(); return;
case PrimitiveTypeCode.Int16: Int16(); return;
case PrimitiveTypeCode.UInt16: UInt16(); return;
case PrimitiveTypeCode.Int32: Int32(); return;
case PrimitiveTypeCode.UInt32: UInt32(); return;
case PrimitiveTypeCode.Int64: Int64(); return;
case PrimitiveTypeCode.UInt64: UInt64(); return;
case PrimitiveTypeCode.Float32: Float32(); return;
case PrimitiveTypeCode.Float64: Float64(); return;
case PrimitiveTypeCode.String: String(); return;
case PrimitiveTypeCode.IntPtr: IntPtr(); return;
case PrimitiveTypeCode.UIntPtr: UIntPtr(); return;
default:
throw new InvalidOperationException();
}
}
public T PrimitiveType(PrimitiveTypeCode type)
{
switch (type)
{
case PrimitiveTypeCode.Boolean: return(Boolean());
case PrimitiveTypeCode.Char: return(Char());
case PrimitiveTypeCode.Int8: return(Int8());
case PrimitiveTypeCode.UInt8: return(UInt8());
case PrimitiveTypeCode.Int16: return(Int16());
case PrimitiveTypeCode.UInt16: return(UInt16());
case PrimitiveTypeCode.Int32: return(Int32());
case PrimitiveTypeCode.UInt32: return(UInt32());
case PrimitiveTypeCode.Int64: return(Int64());
case PrimitiveTypeCode.UInt64: return(UInt64());
case PrimitiveTypeCode.Float32: return(Float32());
case PrimitiveTypeCode.Float64: return(Float64());
case PrimitiveTypeCode.String: return(String());
case PrimitiveTypeCode.IntPtr: return(IntPtr());
case PrimitiveTypeCode.UIntPtr: return(UIntPtr());
default:
throw new InvalidOperationException();
}
}
/// <summary>
/// Get symbol for predefined type from Cor Library used by this assembly.
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
internal NamedTypeSymbol GetPrimitiveType(Microsoft.Cci.PrimitiveTypeCode type)
{
return(GetSpecialType(SpecialTypes.GetTypeFromMetadataName(type)));
}
public void EmitNumericConversion(Microsoft.Cci.PrimitiveTypeCode fromPredefTypeKind, Microsoft.Cci.PrimitiveTypeCode toPredefTypeKind, bool @checked)
{
bool fromUnsigned = fromPredefTypeKind.IsUnsigned();
switch (toPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.Int8:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.Int8:
break; // NOP
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_i1_un : ILOpCode.Conv_ovf_i1);
}
else
{
this.EmitOpCode(ILOpCode.Conv_i1);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
break; // NOP
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_u1_un : ILOpCode.Conv_ovf_u1);
}
else
{
this.EmitOpCode(ILOpCode.Conv_u1);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.Int16:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
break; // NOP
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_i2_un : ILOpCode.Conv_ovf_i2);
}
else
{
this.EmitOpCode(ILOpCode.Conv_i2);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.Char:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.Char:
break; // NOP
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_u2_un : ILOpCode.Conv_ovf_u2);
}
else
{
this.EmitOpCode(ILOpCode.Conv_u2);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.Int32:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
case Microsoft.Cci.PrimitiveTypeCode.Char:
break; // NOP
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_i4_un);
}
break; // NOP in unchecked
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_i4_un : ILOpCode.Conv_ovf_i4);
}
else
{
this.EmitOpCode(ILOpCode.Conv_i4);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
case Microsoft.Cci.PrimitiveTypeCode.Char:
break; // NOP
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_u4);
}
break; // NOP in unchecked
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_u4_un : ILOpCode.Conv_ovf_u4);
}
else
{
this.EmitOpCode(ILOpCode.Conv_u4);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.IntPtr:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.IntPtr:
break; // NOP
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
this.EmitOpCode(ILOpCode.Conv_i); // potentially widening, so not NOP
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.Char:
// Doesn't actually matter whether we sign extend, because
// bit 32 can't be set in any of these types.
this.EmitOpCode(ILOpCode.Conv_u); // potentially widening, so not NOP
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_i_un);
}
else
{
// Don't want to sign extend if this is a widening conversion.
this.EmitOpCode(ILOpCode.Conv_u); // potentially widening, so not NOP
}
break;
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_i_un : ILOpCode.Conv_ovf_i);
}
else
{
this.EmitOpCode(ILOpCode.Conv_i);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.UIntPtr:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UIntPtr:
break; // NOP
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
case Microsoft.Cci.PrimitiveTypeCode.Char:
this.EmitOpCode(ILOpCode.Conv_u); // potentially widening, so not NOP
break;
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_u);
}
else
{
this.EmitOpCode(ILOpCode.Conv_i); // potentially widening, so not NOP
}
break;
default:
if (@checked)
{
this.EmitOpCode(fromUnsigned ? ILOpCode.Conv_ovf_u_un : ILOpCode.Conv_ovf_u);
}
else
{
this.EmitOpCode(ILOpCode.Conv_u);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.Int64:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.Int64:
break; //NOP
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
case Microsoft.Cci.PrimitiveTypeCode.IntPtr:
this.EmitOpCode(ILOpCode.Conv_i8); // sign extend
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
case Microsoft.Cci.PrimitiveTypeCode.Char:
this.EmitOpCode(ILOpCode.Conv_u8); // 0 extend
break;
case Microsoft.Cci.PrimitiveTypeCode.Pointer:
case Microsoft.Cci.PrimitiveTypeCode.UIntPtr:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_i8_un);
}
else
{
this.EmitOpCode(ILOpCode.Conv_u8); // 0 extend if unchecked
}
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt64:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_i8_un);
}
break; // NOP in unchecked
default:
Debug.Assert(fromPredefTypeKind.IsFloatingPoint());
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_i8);
}
else
{
this.EmitOpCode(ILOpCode.Conv_i8);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt64:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt64:
break; //NOP
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
case Microsoft.Cci.PrimitiveTypeCode.Pointer:
case Microsoft.Cci.PrimitiveTypeCode.UIntPtr:
case Microsoft.Cci.PrimitiveTypeCode.Char:
this.EmitOpCode(ILOpCode.Conv_u8); // 0 extend
break;
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
case Microsoft.Cci.PrimitiveTypeCode.IntPtr:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_u8);
}
else
{
this.EmitOpCode(ILOpCode.Conv_i8); // sign extend if unchecked
}
break;
case Microsoft.Cci.PrimitiveTypeCode.Int64:
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_u8);
}
break; // NOP in unchecked
default:
Debug.Assert(fromPredefTypeKind.IsFloatingPoint());
if (@checked)
{
this.EmitOpCode(ILOpCode.Conv_ovf_u8);
}
else
{
this.EmitOpCode(ILOpCode.Conv_u8);
}
break;
}
break;
case Microsoft.Cci.PrimitiveTypeCode.Float32:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
case Microsoft.Cci.PrimitiveTypeCode.UInt64:
this.EmitOpCode(ILOpCode.Conv_r_un);
break;
}
this.EmitOpCode(ILOpCode.Conv_r4);
break;
case Microsoft.Cci.PrimitiveTypeCode.Float64:
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
case Microsoft.Cci.PrimitiveTypeCode.UInt64:
this.EmitOpCode(ILOpCode.Conv_r_un);
break;
}
this.EmitOpCode(ILOpCode.Conv_r8);
break;
case Microsoft.Cci.PrimitiveTypeCode.Pointer:
if (@checked)
{
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
this.EmitOpCode(ILOpCode.Conv_u);
break;
case Microsoft.Cci.PrimitiveTypeCode.UInt64:
this.EmitOpCode(ILOpCode.Conv_ovf_u_un);
break;
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
case Microsoft.Cci.PrimitiveTypeCode.Int64:
this.EmitOpCode(ILOpCode.Conv_ovf_u);
break;
default:
throw ExceptionUtilities.UnexpectedValue(fromPredefTypeKind);
}
}
else
{
switch (fromPredefTypeKind)
{
case Microsoft.Cci.PrimitiveTypeCode.UInt8:
case Microsoft.Cci.PrimitiveTypeCode.UInt16:
case Microsoft.Cci.PrimitiveTypeCode.UInt32:
case Microsoft.Cci.PrimitiveTypeCode.UInt64:
case Microsoft.Cci.PrimitiveTypeCode.Int64:
this.EmitOpCode(ILOpCode.Conv_u);
break;
case Microsoft.Cci.PrimitiveTypeCode.Int8:
case Microsoft.Cci.PrimitiveTypeCode.Int16:
case Microsoft.Cci.PrimitiveTypeCode.Int32:
// This matches dev10. Presumably, we're using conv_i,
// rather than conv_u, to sign-extend the value.
this.EmitOpCode(ILOpCode.Conv_i);
break;
default:
throw ExceptionUtilities.UnexpectedValue(fromPredefTypeKind);
}
}
break;
default:
throw ExceptionUtilities.UnexpectedValue(toPredefTypeKind);
}
}
public static SpecialType GetTypeFromMetadataName(Microsoft.Cci.PrimitiveTypeCode typeCode)
{
return(s_typeCodeToTypeIdMap[(int)typeCode]);
}
public void PrimitiveType(PrimitiveTypeCode type)
{
switch (type)
{
case PrimitiveTypeCode.Boolean: Boolean(); return;
case PrimitiveTypeCode.Char: Char(); return;
case PrimitiveTypeCode.Int8: Int8(); return;
case PrimitiveTypeCode.UInt8: UInt8(); return;
case PrimitiveTypeCode.Int16: Int16(); return;
case PrimitiveTypeCode.UInt16: UInt16(); return;
case PrimitiveTypeCode.Int32: Int32(); return;
case PrimitiveTypeCode.UInt32: UInt32(); return;
case PrimitiveTypeCode.Int64: Int64(); return;
case PrimitiveTypeCode.UInt64: UInt64(); return;
case PrimitiveTypeCode.Float32: Float32(); return;
case PrimitiveTypeCode.Float64: Float64(); return;
case PrimitiveTypeCode.String: String(); return;
case PrimitiveTypeCode.IntPtr: IntPtr(); return;
case PrimitiveTypeCode.UIntPtr: UIntPtr(); return;
default:
throw new InvalidOperationException();
}
}
