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Added FishTranspiler.NewLocalVariable, fixed a bug causing FishTranspiler.LocalVariable.Equals to always return false, minor refactoring

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bbradson
2022-12-14 22:27:52 +01:00
parent 9cdc8ccb4f
commit 8fa92f15a6
8 changed files with 76 additions and 31 deletions
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Source/FisheryLib/FishTranspiler.cs
+57 -19
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@@ -92,13 +92,10 @@ public static class FishTranspiler
public CodeInstruction WithLabelsAndBlocks(CodeInstruction instruction)
=> WithLabels(instruction.labels).WithBlocks(instruction.blocks);
public int GetIndex() => Operand is LocalVariableInfo info ? info.LocalIndex
: Operand is ushort ushortVar ? ushortVar
: Operand is byte byteVar ? byteVar
: Operand is int intVar ? intVar
: OpCode.TryGetIndex() is { } index ? index
: Operand is IConvertible convertible ? convertible.ToInt32(CultureInfo.InvariantCulture)
: Operand as int? ?? ThrowHelper.ThrowArgumentException<int>($"{OpCode} has operand {Operand}. This is not a supported index.");
public int GetIndex()
=> OpCode.TryGetIndex()
?? TryGetIndexFromOperand(Operand)
?? ThrowHelper.ThrowArgumentException<int>($"{OpCode} has operand {Operand}. This is not a supported index.");
public bool LoadsLocalVariable(MethodBase method, Type localType)
=> OpCode.LoadsLocalVariable()
@@ -639,6 +636,21 @@ public static class FishTranspiler
/// <param name="index">The index of the local variable</param>
public static Container StoreLocalVariable(int index) => new(GetStoreLocalOpCode(index), GetOperandFromIndex(index));
/// <summary>
/// Declares a local variable of the specified type, optionally pinning the object referred
/// to by the variable. Then returns an instruction matching that of StoreLocalVariable.
/// </summary>
/// <param name="localType">A System.Type object that represents the type of the local variable</param>
/// <param name="generator">The ILGenerator used for the instruction stream</param>
/// <param name="pinned">True to pin the object in memory; otherwise, false</param>
public static Container NewLocalVariable(Type localType, ILGenerator generator, bool pinned = false)
{
Guard.IsNotNull(localType);
Guard.IsNotNull(generator);
return StoreLocalVariable(generator.DeclareLocal(localType, pinned));
}
/// <summary>
/// Pushes a supplied value of type int32 onto the evaluation stack as an int32.
/// </summary>
@@ -886,6 +898,22 @@ public static class FishTranspiler
return new(fieldInfo.IsStatic ? OpCodes.Stsfld : OpCodes.Stfld, fieldInfo);
}
[Obsolete("Use FishTranspiler.PropertyGetter instead")]
public static Container CallPropertyGetter(Type type, string name, bool forceNoCallvirt = false)
=> PropertyGetter(type, name, forceNoCallvirt);
[Obsolete("Use FishTranspiler.PropertyGetter instead")]
public static Container CallPropertyGetter(PropertyInfo propertyInfo, bool forceNoCallvirt = false)
=> PropertyGetter(propertyInfo, forceNoCallvirt);
[Obsolete("Use FishTranspiler.PropertySetter instead")]
public static Container CallPropertySetter(Type type, string name, bool forceNoCallvirt = false)
=> PropertySetter(type, name, forceNoCallvirt);
[Obsolete("Use FishTranspiler.PropertySetter instead")]
public static Container CallPropertySetter(PropertyInfo propertyInfo, bool forceNoCallvirt = false)
=> PropertySetter(propertyInfo, forceNoCallvirt);
/// <summary>
/// Calls the property getter indicated by the passed arguments.
/// </summary>
@@ -893,7 +921,7 @@ public static class FishTranspiler
/// <param name="name">The name of the property</param>
/// <param name="forceNoCallvirt">force a Call OpCode instead of using Callvirt where appropriate</param>
/// <exception cref="ArgumentException">No property found for the specified type and name</exception>
public static Container CallPropertyGetter(Type type, string name, bool forceNoCallvirt = false)
public static Container PropertyGetter(Type type, string name, bool forceNoCallvirt = false)
{
Guard.IsNotNull(type);
Guard.IsNotNullOrEmpty(name);
@@ -910,7 +938,7 @@ public static class FishTranspiler
/// <param name="propertyInfo">The PropertyInfo</param>
/// <param name="forceNoCallvirt">force a Call OpCode instead of using Callvirt where appropriate</param>
/// <exception cref="ArgumentException">No property getter found for the specified property info</exception>
public static Container CallPropertyGetter(PropertyInfo propertyInfo, bool forceNoCallvirt = false)
public static Container PropertyGetter(PropertyInfo propertyInfo, bool forceNoCallvirt = false)
{
Guard.IsNotNull(propertyInfo);
@@ -927,7 +955,7 @@ public static class FishTranspiler
/// <param name="name">The name of the property</param>
/// <param name="forceNoCallvirt">force a Call OpCode instead of using Callvirt where appropriate</param>
/// <exception cref="ArgumentException">No property found with specified type and name</exception>
public static Container CallPropertySetter(Type type, string name, bool forceNoCallvirt = false)
public static Container PropertySetter(Type type, string name, bool forceNoCallvirt = false)
{
Guard.IsNotNull(type);
Guard.IsNotNullOrEmpty(name);
@@ -944,7 +972,7 @@ public static class FishTranspiler
/// <param name="propertyInfo">The PropertyInfo</param>
/// <param name="forceNoCallvirt">force a Call OpCode instead of using Callvirt where appropriate</param>
/// <exception cref="ArgumentException">No property setter found for the specified property info</exception>
public static Container CallPropertySetter(PropertyInfo propertyInfo, bool forceNoCallvirt = false)
public static Container PropertySetter(PropertyInfo propertyInfo, bool forceNoCallvirt = false)
{
Guard.IsNotNull(propertyInfo);
@@ -1748,12 +1776,9 @@ public static class FishTranspiler
{
if (previousCode is not null && predicate(previousCode) && code.IsStloc() && code.opcode is var opcode)
{
yield return opcode.TryGetIndex() as object
?? (code.operand is LocalBuilder builder ? builder
: code.operand is byte index ? index
: code.operand is ushort unsigned ? unsigned
: ushort.TryParse(code.operand?.ToString(), out var parsedNumber) ? parsedNumber
: ThrowHelper.ThrowNotSupportedException<object>($"{code.opcode} returned {code.operand?.ToString() ?? "null"}."));
yield return opcode.TryGetIndex()
?? TryGetIndexFromOperand(code.operand)
?? ThrowHelper.ThrowNotSupportedException<object>($"{code.opcode} returned {code.operand?.ToString() ?? "null"}.");
}
previousCode = code;
}
@@ -1765,7 +1790,7 @@ public static class FishTranspiler
Guard.IsNotNull(predicate);
foreach (var operand in GetLocalOperandsOrIndices(codes, predicate))
yield return operand is LocalBuilder builder ? builder.LocalIndex : (int)operand;
yield return (int)operand;
}
public static IEnumerable<int> GetLocalIndices(MethodBase method, Predicate<LocalVariableInfo> predicate)
@@ -2332,8 +2357,21 @@ public static class FishTranspiler
public static IList<LocalVariableInfo> GetLocalVariables(this MethodBase method)
=> method.GetMethodBody().LocalVariables;
public static int? TryGetIndexFromOperand(object? obj)
=> obj is LocalVariableInfo info ? info.LocalIndex
: obj is byte @byte ? @byte
: obj is ushort @ushort ? @ushort
: obj is int @int ? @int
: obj is not string and IConvertible convertible ? convertible.ToInt32(CultureInfo.InvariantCulture)
: int.TryParse(obj?.ToString(), out var parsedNumber) ? parsedNumber
: null;
public static bool CompareOperands(object? lhs, object? rhs)
=> (lhs is LocalVariableInfo lhInfo ? lhInfo.LocalIndex : lhs) == (rhs is LocalVariableInfo rhInfo ? rhInfo.LocalIndex : rhs);
=> TryGetIndexFromOperand(lhs) is int lhIndex && TryGetIndexFromOperand(rhs) is int rhIndex
? lhIndex == rhIndex
: lhs is null
? rhs is null
: lhs.Equals(rhs);
public static void Emit(this ILGenerator generator, Container fishTranspiler)
{