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581 lines (495 loc) · 21.4 KB
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using ICSharpCode.Decompiler.ILAst;
using JSIL.Ast;
using Microsoft.CSharp.RuntimeBinder;
using Mono.Cecil;
namespace JSIL {
internal class DynamicCallSiteInfoCollection {
protected readonly Dictionary<string, DynamicCallSiteInfo> CallSites = new Dictionary<string, DynamicCallSiteInfo>();
protected readonly Dictionary<string, FieldReference> Aliases = new Dictionary<string, FieldReference>();
public bool Get (ILVariable localVariable, out DynamicCallSiteInfo info) {
FieldReference storageField;
if (Aliases.TryGetValue(localVariable.Name, out storageField))
return Get(storageField, out info);
info = null;
return false;
}
public bool Get (FieldReference storageField, out DynamicCallSiteInfo info) {
return CallSites.TryGetValue(storageField.FullName, out info);
}
public DynamicCallSiteInfo InitializeCallSite (FieldReference storageField, string bindingType, TypeReference targetType, JSExpression[] arguments) {
DynamicCallSiteInfo callSiteInfo;
switch (bindingType) {
case "GetIndex":
callSiteInfo = new DynamicCallSiteInfo.GetIndex(targetType, arguments);
break;
case "SetIndex":
callSiteInfo = new DynamicCallSiteInfo.SetIndex(targetType, arguments);
break;
case "GetMember":
callSiteInfo = new DynamicCallSiteInfo.GetMember(targetType, arguments);
break;
case "SetMember":
callSiteInfo = new DynamicCallSiteInfo.SetMember(targetType, arguments);
break;
case "Invoke":
callSiteInfo = new DynamicCallSiteInfo.Invoke(targetType, arguments);
break;
case "InvokeMember":
callSiteInfo = new DynamicCallSiteInfo.InvokeMember(targetType, arguments);
break;
case "UnaryOperation":
callSiteInfo = new DynamicCallSiteInfo.UnaryOperation(targetType, arguments);
break;
case "BinaryOperation":
callSiteInfo = new DynamicCallSiteInfo.BinaryOperation(targetType, arguments);
break;
case "Convert":
callSiteInfo = new DynamicCallSiteInfo.Convert(targetType, arguments);
break;
default:
throw new NotImplementedException(String.Format("Call sites of type '{0}' not implemented.", bindingType));
}
return CallSites[storageField.FullName] = callSiteInfo;
}
public void SetAlias (ILVariable variable, FieldReference fieldReference) {
Aliases[variable.Name] = fieldReference;
}
}
internal abstract class DynamicCallSiteInfo {
public readonly TypeReference ReturnType;
protected readonly JSExpression[] Arguments;
protected DynamicCallSiteInfo (TypeReference targetType, JSExpression[] arguments) {
Arguments = arguments;
var targetTypeName = targetType.FullName;
var git = targetType as GenericInstanceType;
if (targetTypeName.StartsWith("System.Action`")) {
ReturnType = null;
} else if (targetTypeName.StartsWith("System.Func`")) {
ReturnType = git.GenericArguments[git.GenericArguments.Count - 1];
} else {
throw new NotImplementedException(String.Format(
"This type of call site target is not implemented: {0}",
targetTypeName
));
}
if ((BinderFlags & CSharpBinderFlags.ResultDiscarded) == CSharpBinderFlags.ResultDiscarded)
ReturnType = null;
}
protected JSExpression FixupThisArgument (JSExpression thisArgument, TypeSystem typeSystem) {
var expectedType = thisArgument.GetActualType(typeSystem);
if (expectedType.FullName == "System.Type")
return new JSPublicInterfaceOfExpression(thisArgument);
return thisArgument;
}
protected TypeReference UnwrapType (JSExpression expression) {
var type = expression as JSType;
var invocation = expression as JSInvocationExpression;
if (invocation != null) {
var firstArg = invocation.Arguments.FirstOrDefault();
type = firstArg as JSType;
}
if (type != null)
return type.Type;
throw new NotImplementedException(String.Format(
"Unrecognized type expression: {0}",
expression
));
}
public abstract JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments);
public CSharpBinderFlags BinderFlags {
get {
return (CSharpBinderFlags)((JSEnumLiteral)Arguments[0]).Value;
}
}
public class InvokeMember : DynamicCallSiteInfo {
public InvokeMember (TypeReference targetType, JSExpression[] arguments)
: base (targetType, arguments) {
}
public string MemberName {
get {
return ((JSStringLiteral)Arguments[1]).Value;
}
}
public JSExpression[] TypeArguments {
get {
var newarray = Arguments[2] as JSNewArrayExpression;
if (newarray == null)
return null;
var array = (JSArrayExpression)newarray.SizeOrArrayInitializer;
return array.Values.ToArray();
}
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[3]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[4];
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var thisArgument = FixupThisArgument(arguments[1], translator.TypeSystem);
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
var argumentValues = arguments.Skip(2).ToArray();
var memberName = MemberName;
if ((TypeArguments != null) && (TypeArguments.Length > 0)) {
memberName += "`" + TypeArguments.Length;
}
var thisArgumentKnownType = JSType.ExtractType(thisArgument);
if (thisArgumentKnownType != null) {
var replacement = translator.DoJSILMethodReplacement(
thisArgumentKnownType.FullName, memberName,
// FIXME
null,
argumentValues,
true
);
if (replacement != null)
return replacement;
}
return JSInvocationExpression.InvokeMethod(
new JSFakeMethod(
memberName, returnType,
(from av in argumentValues select av.GetActualType(translator.TypeSystem)).ToArray(),
translator.MethodTypes, TypeArguments,
escape: true
), thisArgument,
arguments.Skip(2).ToArray()
);
}
}
public class Invoke : DynamicCallSiteInfo {
public Invoke (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[1]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[2];
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var thisArgument = arguments[1];
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
return new JSDelegateInvocationExpression(
JSChangeTypeExpression.New(thisArgument, returnType, translator.TypeSystem),
returnType, arguments.Skip(2).ToArray()
);
}
}
public class UnaryOperation : DynamicCallSiteInfo {
public UnaryOperation (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public ExpressionType Operation {
get {
return (ExpressionType)((JSEnumLiteral)Arguments[1]).Value;
}
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[2]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[3];
}
}
public static JSUnaryOperator GetOperator (ExpressionType et) {
switch (et) {
case ExpressionType.Negate:
case ExpressionType.NegateChecked:
return JSOperator.Negation;
case ExpressionType.Not:
return JSOperator.BitwiseNot;
case ExpressionType.IsTrue:
return JSOperator.IsTrue;
default:
throw new NotImplementedException(String.Format("The unary operator '{0}' is not implemented.", et));
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
switch (Operation) {
case ExpressionType.IsTrue:
returnType = translator.TypeSystem.Boolean;
break;
}
return new JSUnaryOperatorExpression(
GetOperator(Operation),
arguments[1],
returnType
);
}
}
public class BinaryOperation : DynamicCallSiteInfo {
public BinaryOperation (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public ExpressionType Operation {
get {
return (ExpressionType)((JSEnumLiteral)Arguments[1]).Value;
}
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[2]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[3];
}
}
public static JSBinaryOperator GetOperator (ExpressionType et) {
switch (et) {
case ExpressionType.Add:
case ExpressionType.AddChecked:
return JSOperator.Add;
case ExpressionType.And:
return JSOperator.BitwiseAnd;
case ExpressionType.AndAlso:
return JSOperator.LogicalAnd;
case ExpressionType.Divide:
return JSOperator.Divide;
case ExpressionType.Equal:
return JSOperator.Equal;
case ExpressionType.ExclusiveOr:
return JSOperator.BitwiseXor;
case ExpressionType.GreaterThan:
return JSOperator.GreaterThan;
case ExpressionType.GreaterThanOrEqual:
return JSOperator.GreaterThanOrEqual;
case ExpressionType.LeftShift:
return JSOperator.ShiftLeft;
case ExpressionType.LessThan:
return JSOperator.LessThan;
case ExpressionType.LessThanOrEqual:
return JSOperator.LessThanOrEqual;
case ExpressionType.Modulo:
return JSOperator.Remainder;
case ExpressionType.Multiply:
case ExpressionType.MultiplyChecked:
return JSOperator.Multiply;
case ExpressionType.NotEqual:
return JSOperator.NotEqual;
case ExpressionType.Or:
return JSOperator.BitwiseOr;
case ExpressionType.OrElse:
return JSOperator.LogicalOr;
case ExpressionType.RightShift:
return JSOperator.ShiftRight;
case ExpressionType.Subtract:
case ExpressionType.SubtractChecked:
return JSOperator.Subtract;
case ExpressionType.AddAssign:
case ExpressionType.AddAssignChecked:
return JSOperator.AddAssignment;
case ExpressionType.AndAssign:
return JSOperator.BitwiseAndAssignment;
case ExpressionType.DivideAssign:
return JSOperator.DivideAssignment;
case ExpressionType.ExclusiveOrAssign:
return JSOperator.BitwiseXorAssignment;
case ExpressionType.LeftShiftAssign:
return JSOperator.ShiftLeftAssignment;
case ExpressionType.ModuloAssign:
return JSOperator.RemainderAssignment;
case ExpressionType.MultiplyAssign:
return JSOperator.MultiplyAssignment;
case ExpressionType.MultiplyAssignChecked:
case ExpressionType.OrAssign:
return JSOperator.BitwiseOrAssignment;
case ExpressionType.RightShiftAssign:
return JSOperator.ShiftRightAssignment;
case ExpressionType.SubtractAssign:
case ExpressionType.SubtractAssignChecked:
return JSOperator.SubtractAssignment;
default:
throw new NotImplementedException(String.Format("The binary operator '{0}' is not implemented.", et));
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
switch (Operation) {
case ExpressionType.Equal:
case ExpressionType.NotEqual:
case ExpressionType.LessThan:
case ExpressionType.GreaterThan:
case ExpressionType.LessThanOrEqual:
case ExpressionType.GreaterThanOrEqual:
returnType = translator.TypeSystem.Boolean;
break;
}
return new JSBinaryOperatorExpression(
GetOperator(Operation),
arguments[1], arguments[2],
returnType
);
}
}
public class Convert : DynamicCallSiteInfo {
public Convert (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public TypeReference TargetType {
get {
return UnwrapType(Arguments[1]);
}
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[2]);
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
return JSCastExpression.New(
arguments[1],
TargetType,
translator.TypeSystem
);
}
}
public class GetMember : DynamicCallSiteInfo {
public GetMember (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public string MemberName {
get {
return ((JSStringLiteral)Arguments[1]).Value;
}
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[2]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[3];
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var thisArgument = FixupThisArgument(arguments[1], translator.TypeSystem);
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
return JSDotExpression.New(
thisArgument,
new JSStringIdentifier(MemberName, returnType, true)
);
}
}
public class SetMember : DynamicCallSiteInfo {
public SetMember (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public string MemberName {
get {
return ((JSStringLiteral)Arguments[1]).Value;
}
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[2]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[3];
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var thisArgument = FixupThisArgument(arguments[1], translator.TypeSystem);
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
return new JSBinaryOperatorExpression(
JSOperator.Assignment,
JSDotExpression.New(
thisArgument,
new JSStringIdentifier(MemberName, returnType, true)
),
arguments[2], returnType
);
}
}
public class GetIndex : DynamicCallSiteInfo {
public GetIndex (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[1]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[2];
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var thisArgument = arguments[1];
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
return new JSIndexerExpression(
thisArgument,
arguments[2],
returnType
);
}
}
public class SetIndex : DynamicCallSiteInfo {
public SetIndex (TypeReference targetType, JSExpression[] arguments)
: base(targetType, arguments) {
}
public TypeReference UsageContext {
get {
return UnwrapType(Arguments[1]);
}
}
public JSExpression ArgumentInfo {
get {
return Arguments[2];
}
}
public override JSExpression Translate (ILBlockTranslator translator, JSExpression[] arguments) {
var thisArgument = arguments[1];
var returnType = ReturnType;
if (returnType == null)
returnType = translator.TypeSystem.Void;
return new JSBinaryOperatorExpression(
JSOperator.Assignment,
new JSIndexerExpression(
thisArgument,
arguments[2],
returnType
),
arguments[3], returnType
);
}
}
}
}