internal override void EmitLoadTypeDesc(DirectTypeRef node, CodeGenerator codeGenerator, ResolveTypeFlags flags)
{
Debug.Assert(resolvedType != null);
// disallow generic parameters on generic type which already has generic arguments:
resolvedType.EmitLoadTypeDesc(codeGenerator, flags |
((node.GenericParams.Count > 0) ? ResolveTypeFlags.SkipGenericNameParsing : 0));
// constructed type already emited its generic parameters:
if (!(resolvedType is ConstructedType))
{
EmitMakeGenericInstantiation(node, codeGenerator, flags);
}
}
internal void EmitGetConstantValueOperator(DType type, string/*!*/ constantFullName, string constantFallbackName)
{
if (type != null)
{
Debug.Assert(constantFallbackName == null);
// CALL Operators.GetClassConstant(<type desc>, <constant name>, <type context>, <script context>);
type.EmitLoadTypeDesc(this, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
il.Emit(OpCodes.Ldstr, constantFullName);
EmitLoadClassContext();
EmitLoadScriptContext();
il.EmitCall(OpCodes.Call, Methods.Operators.GetClassConstant, null);
}
else
{
// CALL context.GetConstantValue(name);
EmitLoadScriptContext();
il.Emit(OpCodes.Ldstr, constantFullName);
if (constantFallbackName != null) il.Emit(OpCodes.Ldstr, constantFallbackName); else il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Call, Methods.ScriptContext.GetConstantValue);
}
}
internal void EmitUnsetStaticPropertyOperator(DType/*!*/ type, string propertyFullName,
Expression propertyNameExpr)
{
Debug.Assert(type != null && (propertyFullName != null ^ propertyNameExpr != null));
// CALL Operators.UnsetStaticProperty(<type desc>, <field name>, <type desc>, <context>)
type.EmitLoadTypeDesc(this, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
EmitName(propertyFullName, propertyNameExpr, false);
EmitLoadClassContext();
EmitLoadScriptContext();
il.Emit(OpCodes.Call, Methods.Operators.UnsetStaticProperty);
}
internal AssignmentCallback/*!*/ EmitSetStaticPropertyOperator(DType/*!*/ type,
string propertyFullName, Expression propertyNameExpr, bool setReference)
{
Debug.Assert(type != null && (propertyFullName != null ^ propertyNameExpr != null));
// we need to check the visibility => invoke the operator:
type.EmitLoadTypeDesc(this, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
EmitName(propertyFullName, propertyNameExpr, false);
return delegate(CodeGenerator/*!*/ codeGen, PhpTypeCode stackTypeCode)
{
codeGen.EmitLoadClassContext();
codeGen.EmitLoadScriptContext();
// invoke the operator
codeGen.IL.Emit(OpCodes.Call, Methods.Operators.SetStaticProperty);
};
}
internal PhpTypeCode EmitGetStaticPropertyOperator(DType/*!*/ type,
string propertyFullName, Expression propertyNameExpr, bool getReference)
{
Debug.Assert(type != null && (propertyFullName != null ^ propertyNameExpr != null));
// LOAD GetStaticProperty[Ref](<type name>, <field name>, <type desc>, <context>, [quiet]);
type.EmitLoadTypeDesc(this, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
EmitName(propertyFullName, propertyNameExpr, false);
EmitLoadClassContext();
EmitLoadScriptContext();
// invoke the operator
if (getReference)
{
il.Emit(OpCodes.Call, Methods.Operators.GetStaticPropertyRef);
return PhpTypeCode.PhpReference;
}
else
{
il.LdcI4(this.ChainBuilder.QuietRead ? 1 : 0);
il.Emit(OpCodes.Call, Methods.Operators.GetStaticProperty);
return PhpTypeCode.Object;
}
}
private void EmitLoadTypeDesc(string typeFullName, TypeRef typeNameRef, DType type, ResolveTypeFlags flags)
{
DebugHelper.AssertNonNull(1, typeFullName, typeNameRef, type);
if (typeFullName != null)
EmitLoadTypeDescOperator(typeFullName, null, flags);
else if (typeNameRef != null)
typeNameRef.EmitLoadTypeDesc(this, flags);
else
type.EmitLoadTypeDesc(this, flags);
}
/// <summary>
/// Emits a call to a routine with specified name using an operator.
/// </summary>
internal PhpTypeCode EmitRoutineOperatorCall(DType type, Expression targetExpr,
string routineFullName, string fallbackRoutineFullname, Expression routineNameExpr, CallSignature callSignature, AccessType access)
{
Debug.Assert(routineFullName != null ^ routineNameExpr != null);
MethodInfo operator_method;
PhpTypeCode return_type_code;
// (J) use call sites to call the method:
if (targetExpr != null /*|| type != null*/)
{
Debug.Assert(fallbackRoutineFullname == null);
return this.CallSitesBuilder.EmitMethodCall(this, CallSitesBuilder.AccessToReturnType(access), targetExpr, type, routineFullName, routineNameExpr, callSignature);
}
else if (targetExpr != null)
{
Debug.Assert(fallbackRoutineFullname == null);
// LOAD Operators.InvokeMethod(<target>, <method name>, <type desc>, <context>);
// start a new operators chain (as the rest of chain is read)
this.ChainBuilder.Create();
this.ChainBuilder.Begin();
this.ChainBuilder.Lengthen(); // for hop over ->
// prepare for operator invocation
this.EmitBoxing(targetExpr.Emit(this));
this.ChainBuilder.End();
this.EmitName(routineFullName, routineNameExpr, true);
this.EmitLoadClassContext();
this.EmitLoadScriptContext();
if (routineFullName != null)
operator_method = Methods.Operators.InvokeMethodStr;
else
operator_method = Methods.Operators.InvokeMethodObj;
return_type_code = PhpTypeCode.PhpReference;
}
else if (type != null)
{
Debug.Assert(fallbackRoutineFullname == null);
// LOAD Operators.InvokeStaticMethod(<type desc>, <method name>, <self>, <type desc>, context);
type.EmitLoadTypeDesc(this, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
this.EmitName(routineFullName, routineNameExpr, true);
this.EmitLoadSelf();
this.EmitLoadClassContext();
this.EmitLoadScriptContext();
operator_method = Methods.Operators.InvokeStaticMethod;
return_type_code = PhpTypeCode.PhpReference;
}
else
{
Debug.Assert(routineNameExpr == null || fallbackRoutineFullname == null); // (routineNameExpr != null) => (fallbackRoutineFullName == null)
// DRoutineDesc <callHint>;
FieldInfo hintField = this.CallSitesBuilder.DefineField(
"<callHint>'" + (routineFullName ?? "indirect"),
typeof(PHP.Core.Reflection.DRoutineDesc),
FieldAttributes.Static | FieldAttributes.Assembly);
// LOAD ScriptContext.Call{|Void|Value}(<local variables>, <naming context>, <function name>, ref <hint>, context);
this.EmitLoadRTVariablesTable();
this.EmitLoadNamingContext();
this.EmitName(routineFullName, routineNameExpr, true);
if (fallbackRoutineFullname != null) il.Emit(OpCodes.Ldstr, fallbackRoutineFullname); else il.Emit(OpCodes.Ldnull); // fallback fcn name
il.Emit(OpCodes.Ldsflda, hintField);
this.EmitLoadScriptContext();
// (J) only necessary copying, dereferencing or reference making:
if (access == AccessType.None)
{
operator_method = Methods.ScriptContext.CallVoid;
return_type_code = PhpTypeCode.Void;
}
else if (access == AccessType.Read)
{
operator_method = Methods.ScriptContext.CallValue;
return_type_code = PhpTypeCode.Object;
}
else
{
operator_method = Methods.ScriptContext.Call;
return_type_code = PhpTypeCode.PhpReference;
}
}
// emits load of parameters to the PHP stack:
callSignature.EmitLoadOnPhpStack(this);
// marks transient sequence point just before the call:
this.MarkTransientSequencePoint();
il.Emit(OpCodes.Call, operator_method);
// marks transient sequence point just after the call:
this.MarkTransientSequencePoint();
return return_type_code;
}
/// <summary>
/// Create and call <see cref="CallSite"/> for getting property.
/// </summary>
/// <param name="cg"><see cref="CodeGenerator"/>.</param>
/// <param name="wantRef">Wheter <see cref="PhpReference"/> is expected as the result.</param>
/// <param name="targetExpr">The expression representing the target (object).</param>
/// <param name="targetObjectPlace">The place representing the target (<see cref="DObject"/>) iff <paramref name="targetExpr"/> is not provided.</param>
/// <param name="targetPlace">The place representing the target (object) iff <paramref name="targetExpr"/> and <paramref name="targetObjectPlace"/> are not provided.</param>
/// <param name="targetType">Type of target iff we are getting property statically.</param>
/// <param name="fieldName">The name of the field. Can be null if the name is not known at compile time (indirect).</param>
/// <param name="fieldNameExpr">The expression used to get field name in run time (iff <paramref name="fieldName"/> is <c>null</c>.</param>
/// <param name="issetSemantics">Wheter we are only checking if the property exists. If true, no warnings are thrown during run time.</param>
/// <returns>Type code of the value that is pushed onto the top of the evaluation stack.</returns>
public PhpTypeCode EmitGetProperty(
PHP.Core.CodeGenerator /*!*/ cg, bool wantRef,
Expression targetExpr, IPlace targetObjectPlace, IPlace targetPlace, DType targetType,
string fieldName, Expression fieldNameExpr,
bool issetSemantics)
{
Debug.Assert(fieldName != null ^ fieldNameExpr != null);
Debug.Assert(targetExpr != null || targetObjectPlace != null || targetPlace != null || targetType != null);
//
bool staticCall = (targetExpr == null && targetObjectPlace == null && targetPlace == null); // we are going to access static property
bool fieldNameIsKnown = (fieldName != null);
bool classContextIsKnown = (this.classContextPlace != null);
//
// binder flags:
//
Type returnType = wantRef ? Types.PhpReference[0] : Types.Object[0];
//
// define the call site:
//
//
List <Type> additionalArgs = new List <Type>();
if (!classContextIsKnown)
{
additionalArgs.Add(Types.DTypeDesc[0]);
}
if (!fieldNameIsKnown)
{
additionalArgs.Add(Types.String[0]);
}
var delegateTypeArgs = GetPropertyDelegateTypeArgs(
staticCall ? Types.DTypeDesc[0] : ((targetObjectPlace != null) ? Types.DObject[0] : Types.Object[0]), // DTypeDesc of static field's declaring type || DObject if field called on DObject known at compile time || otherwise object
additionalArgs.ToArray(),
returnType);
var delegateType = /*System.Linq.Expressions.Expression.*/ delegateBuilder.GetDelegateType(delegateTypeArgs, callSitesCount); // (J) do not create dynamic delegates in dynamic modules, so they can be referenced from non-transient assemblies
//
var field = DefineCallSite(cg.IL, string.Format("get{0}_{1}", wantRef ? "ref" : string.Empty, fieldName ?? "$"), delegateType, (il) =>
{
// <LOAD> Binder.{GetProperty|GetStaticProperty}( fieldName, classContext, issetSemantics, <returnType> )
if (fieldName != null)
{
il.Emit(OpCodes.Ldstr, fieldName);
}
else
{
il.Emit(OpCodes.Ldnull);
}
if (this.classContextPlace != null)
{
this.classContextPlace.EmitLoad(il);
}
else
{
il.Emit(OpCodes.Ldsfld, Fields.UnknownTypeDesc.Singleton);
}
il.LoadBool(issetSemantics);
il.Emit(OpCodes.Ldtoken, returnType);
il.Emit(OpCodes.Call, Methods.GetTypeFromHandle);
il.Emit(OpCodes.Call, staticCall ? Methods.Binder.StaticGetProperty : Methods.Binder.GetProperty);
});
//
// call the CallSite:
//
// <field>.Target( <field>, <targetExpr|targetType>, (classContext)?, <methodNameExpr>? ):
cg.IL.Emit(OpCodes.Ldsfld, field);
cg.IL.Emit(OpCodes.Ldfld, field.FieldType.GetField("Target"));
cg.IL.Emit(OpCodes.Ldsfld, field);
if (staticCall)
{
targetType.EmitLoadTypeDesc(cg, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
}
else if (targetExpr != null)
{
cg.ChainBuilder.Lengthen(); // for hop over ->
cg.EmitBoxing(targetExpr.Emit(cg)); // prepare for operator invocation
}
else if (targetObjectPlace != null)
{
targetObjectPlace.EmitLoad(cg.IL);
}
else if (targetPlace != null)
{
targetPlace.EmitLoad(cg.IL);
}
else
{
Debug.Fail();
}
if (!classContextIsKnown)
{
cg.EmitLoadClassContext();
}
if (!fieldNameIsKnown)
{
cg.EmitName(fieldName /*null*/, fieldNameExpr, true, PhpTypeCode.String);
}
cg.MarkTransientSequencePoint();
cg.IL.Emit(OpCodes.Callvirt, delegateType.GetMethod("Invoke"));
cg.MarkTransientSequencePoint();
//
return(PhpTypeCodeEnum.FromType(returnType));
}
/// <summary>
/// Emit call of the instance/static method. This defines the call site and call it using given parameters.
/// </summary>
/// <param name="cg">Current code <see cref="CodeGenerator"/>.</param>
/// <param name="returnType">Return type of the method call determined by current access of the method call.</param>
/// <param name="targetExpr">The method call instance expression (the target) if it is an instance method call.</param>
/// <param name="targetType">The target type if it is a static method call.</param>
/// <param name="methodFullName">If known at compile time, the method name. Otherwise <c>null</c>.</param>
/// <param name="methodNameExpr">If the <paramref name="methodFullName"/> is null, this will be the expression giving the method name in run time.</param>
/// <param name="callSignature">The call signature of the method call.</param>
/// <returns>The resulting value type code. This value will be pushed onto the evaluation stack.</returns>
public PhpTypeCode EmitMethodCall(
PHP.Core.CodeGenerator /*!*/ cg, Type returnType,
Expression /*!*/ targetExpr, DType /*!*/ targetType,
string methodFullName, Expression methodNameExpr, CallSignature callSignature)
{
Debug.Assert(methodFullName != null ^ methodNameExpr != null);
//
bool staticCall = (targetExpr == null); // we are going to emit static method call
//bool methodNameIsKnown = (methodFullName != null);
//bool classContextIsKnown = (this.classContextPlace != null);
//
// define the call site:
//
var delegateType = /*System.Linq.Expressions.Expression.*/ delegateBuilder.GetDelegateType(
MethodCallDelegateTypeArgs(
callSignature,
staticCall ? Types.DObject[0] : Types.Object[0],
MethodCallDelegateAdditionalArguments(staticCall, methodFullName != null, this.classContextPlace != null),
returnType),
callSitesCount); // (J) do not create dynamic delegates in dynamic modules, so they can be referenced from non-transient assemblies
//
var field = DefineCallSite(cg.IL, string.Format("call_{0}", methodFullName ?? "$"), delegateType, (il) =>
{
// <LOAD> Binder.{MethodCall|StaticMethodCall}( methodFullName, genericParamsCount, paramsCount, classContext, <returnType> )
if (methodFullName != null)
{
il.Emit(OpCodes.Ldstr, methodFullName);
}
else
{
il.Emit(OpCodes.Ldnull);
}
il.LdcI4(callSignature.GenericParams.Count);
il.LdcI4(callSignature.Parameters.Count);
if (this.classContextPlace != null)
{
this.classContextPlace.EmitLoad(il);
}
else
{
il.Emit(OpCodes.Ldsfld, Fields.UnknownTypeDesc.Singleton);
}
il.Emit(OpCodes.Ldtoken, returnType);
il.Emit(OpCodes.Call, Methods.GetTypeFromHandle);
il.Emit(OpCodes.Call, staticCall ? Methods.Binder.StaticMethodCall : Methods.Binder.MethodCall);
});
//
// call the CallSite:
//
// <field>.Target( <field>, <targetExpr|self>, <scriptContext>, <callSignature.EmitLoadOnEvalStack>, <targetType>?, (classContext)?, <methodNameExpr>? ):
cg.IL.Emit(OpCodes.Ldsfld, field);
cg.IL.Emit(OpCodes.Ldfld, field.FieldType.GetField("Target"));
cg.IL.Emit(OpCodes.Ldsfld, field);
if (staticCall)
{
cg.EmitLoadSelf();
}
else
{
EmitMethodTargetExpr(cg, targetExpr);
}
cg.EmitLoadScriptContext();
EmitMethodCallParameters(cg, callSignature);
if (staticCall)
{
targetType.EmitLoadTypeDesc(cg, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
}
if (/*!classContextIsKnown*/ this.classContextPlace == null)
{
cg.EmitLoadClassContext();
}
if (/*!methodNameIsKnown*/ methodFullName == null)
{
cg.EmitName(methodFullName /*null*/, methodNameExpr, true);
}
cg.MarkTransientSequencePoint();
cg.IL.Emit(OpCodes.Callvirt, delegateType.GetMethod("Invoke"));
cg.MarkTransientSequencePoint();
//
return(PhpTypeCodeEnum.FromType(returnType));
}
/// <summary>
/// Create and call <see cref="CallSite"/> for getting property.
/// </summary>
/// <param name="cg"><see cref="CodeGenerator"/>.</param>
/// <param name="wantRef">Wheter <see cref="PhpReference"/> is expected as the result.</param>
/// <param name="targetExpr">The expression representing the target (object).</param>
/// <param name="targetObjectPlace">The place representing the target (<see cref="DObject"/>) iff <paramref name="targetExpr"/> is not provided.</param>
/// <param name="targetPlace">The place representing the target (object) iff <paramref name="targetExpr"/> and <paramref name="targetObjectPlace"/> are not provided.</param>
/// <param name="targetType">Type of target iff we are getting property statically.</param>
/// <param name="fieldName">The name of the field. Can be null if the name is not known at compile time (indirect).</param>
/// <param name="fieldNameExpr">The expression used to get field name in run time (iff <paramref name="fieldName"/> is <c>null</c>.</param>
/// <param name="issetSemantics">Wheter we are only checking if the property exists. If true, no warnings are thrown during run time.</param>
/// <returns>Type code of the value that is pushed onto the top of the evaluation stack.</returns>
public PhpTypeCode EmitGetProperty(
PHP.Core.CodeGenerator/*!*/cg, bool wantRef,
Expression targetExpr, IPlace targetObjectPlace, IPlace targetPlace, DType targetType,
string fieldName, Expression fieldNameExpr,
bool issetSemantics)
{
Debug.Assert(fieldName != null ^ fieldNameExpr != null);
Debug.Assert(targetExpr != null || targetObjectPlace != null || targetPlace != null || targetType != null);
//
bool staticCall = (targetExpr == null && targetObjectPlace == null && targetPlace == null); // we are going to access static property
bool fieldNameIsKnown = (fieldName != null);
bool classContextIsKnown = (this.classContextPlace != null);
//
// binder flags:
//
Type returnType = wantRef ? Types.PhpReference[0] : Types.Object[0];
//
// define the call site:
//
//
List<Type> additionalArgs = new List<Type>();
if (!classContextIsKnown) additionalArgs.Add(Types.DTypeDesc[0]);
if (!fieldNameIsKnown) additionalArgs.Add(Types.String[0]);
var delegateTypeArgs = GetPropertyDelegateTypeArgs(
staticCall ? Types.DTypeDesc[0] : ((targetObjectPlace != null) ? Types.DObject[0] : Types.Object[0]), // DTypeDesc of static field's declaring type || DObject if field called on DObject known at compile time || otherwise object
additionalArgs.ToArray(),
returnType);
var delegateType = /*System.Linq.Expressions.Expression.*/delegateBuilder.GetDelegateType(delegateTypeArgs, callSitesCount); // (J) do not create dynamic delegates in dynamic modules, so they can be referenced from non-transient assemblies
//
var field = DefineCallSite(cg.IL, string.Format("get{0}_{1}", wantRef ? "ref" : string.Empty, fieldName ?? "$"), delegateType, (il) =>
{
// <LOAD> Binder.{GetProperty|GetStaticProperty}( fieldName, classContext, issetSemantics, <returnType> )
if (fieldName != null) il.Emit(OpCodes.Ldstr, fieldName); else il.Emit(OpCodes.Ldnull);
if (this.classContextPlace != null) this.classContextPlace.EmitLoad(il); else il.Emit(OpCodes.Ldsfld, Fields.UnknownTypeDesc.Singleton);
il.LoadBool(issetSemantics);
il.Emit(OpCodes.Ldtoken, returnType);
il.Emit(OpCodes.Call, Methods.GetTypeFromHandle);
il.Emit(OpCodes.Call, staticCall ? Methods.Binder.StaticGetProperty : Methods.Binder.GetProperty);
});
//
// call the CallSite:
//
// <field>.Target( <field>, <targetExpr|targetType>, (classContext)?, <methodNameExpr>? ):
cg.IL.Emit(OpCodes.Ldsfld, field);
cg.IL.Emit(OpCodes.Ldfld, field.FieldType.GetField("Target"));
cg.IL.Emit(OpCodes.Ldsfld, field);
if (staticCall) targetType.EmitLoadTypeDesc(cg, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
else if (targetExpr != null)
{
cg.ChainBuilder.Lengthen(); // for hop over ->
cg.EmitBoxing(targetExpr.Emit(cg)); // prepare for operator invocation
}
else if (targetObjectPlace != null) targetObjectPlace.EmitLoad(cg.IL);
else if (targetPlace != null) targetPlace.EmitLoad(cg.IL);
else Debug.Fail();
if (!classContextIsKnown) cg.EmitLoadClassContext();
if (!fieldNameIsKnown) cg.EmitName(fieldName/*null*/, fieldNameExpr, true, PhpTypeCode.String);
cg.MarkTransientSequencePoint();
cg.IL.Emit(OpCodes.Callvirt, delegateType.GetMethod("Invoke"));
cg.MarkTransientSequencePoint();
//
return PhpTypeCodeEnum.FromType(returnType);
}
/// <summary>
/// Emit call of the instance/static method. This defines the call site and call it using given parameters.
/// </summary>
/// <param name="cg">Current code <see cref="CodeGenerator"/>.</param>
/// <param name="returnType">Return type of the method call determined by current access of the method call.</param>
/// <param name="targetExpr">The method call instance expression (the target) if it is an instance method call.</param>
/// <param name="targetType">The target type if it is a static method call.</param>
/// <param name="methodFullName">If known at compile time, the method name. Otherwise <c>null</c>.</param>
/// <param name="methodNameExpr">If the <paramref name="methodFullName"/> is null, this will be the expression giving the method name in run time.</param>
/// <param name="callSignature">The call signature of the method call.</param>
/// <returns>The resulting value type code. This value will be pushed onto the evaluation stack.</returns>
public PhpTypeCode EmitMethodCall(
PHP.Core.CodeGenerator/*!*/cg, Type returnType,
Expression/*!*/targetExpr, DType/*!*/targetType,
string methodFullName, Expression methodNameExpr, CallSignature callSignature)
{
Debug.Assert(methodFullName != null ^ methodNameExpr != null);
//
bool staticCall = (targetExpr == null); // we are going to emit static method call
//bool methodNameIsKnown = (methodFullName != null);
//bool classContextIsKnown = (this.classContextPlace != null);
//
// define the call site:
//
var delegateType = /*System.Linq.Expressions.Expression.*/delegateBuilder.GetDelegateType(
MethodCallDelegateTypeArgs(
callSignature,
staticCall ? Types.DObject[0] : Types.Object[0],
MethodCallDelegateAdditionalArguments(staticCall, methodFullName != null, this.classContextPlace != null),
returnType),
callSitesCount); // (J) do not create dynamic delegates in dynamic modules, so they can be referenced from non-transient assemblies
//
var field = DefineCallSite(cg.IL, string.Format("call_{0}", methodFullName ?? "$"), delegateType, (il) =>
{
// <LOAD> Binder.{MethodCall|StaticMethodCall}( methodFullName, genericParamsCount, paramsCount, classContext, <returnType> )
if (methodFullName != null) il.Emit(OpCodes.Ldstr, methodFullName); else il.Emit(OpCodes.Ldnull);
il.LdcI4(callSignature.GenericParams.Count);
il.LdcI4(callSignature.Parameters.Count);
if (this.classContextPlace != null) this.classContextPlace.EmitLoad(il); else il.Emit(OpCodes.Ldsfld, Fields.UnknownTypeDesc.Singleton);
il.Emit(OpCodes.Ldtoken, returnType);
il.Emit(OpCodes.Call, Methods.GetTypeFromHandle);
il.Emit(OpCodes.Call, staticCall ? Methods.Binder.StaticMethodCall : Methods.Binder.MethodCall);
});
//
// call the CallSite:
//
// <field>.Target( <field>, <targetExpr|self>, <scriptContext>, <callSignature.EmitLoadOnEvalStack>, <targetType>?, (classContext)?, <methodNameExpr>? ):
cg.IL.Emit(OpCodes.Ldsfld, field);
cg.IL.Emit(OpCodes.Ldfld, field.FieldType.GetField("Target"));
cg.IL.Emit(OpCodes.Ldsfld, field);
if (staticCall) cg.EmitLoadSelf(); else EmitMethodTargetExpr(cg, targetExpr);
cg.EmitLoadScriptContext();
EmitMethodCallParameters(cg, callSignature);
if (staticCall) targetType.EmitLoadTypeDesc(cg, ResolveTypeFlags.UseAutoload | ResolveTypeFlags.ThrowErrors);
if (/*!classContextIsKnown*/this.classContextPlace == null) cg.EmitLoadClassContext();
if (/*!methodNameIsKnown*/methodFullName == null) cg.EmitName(methodFullName/*null*/, methodNameExpr, true);
cg.MarkTransientSequencePoint();
cg.IL.Emit(OpCodes.Callvirt, delegateType.GetMethod("Invoke"));
cg.MarkTransientSequencePoint();
//
return PhpTypeCodeEnum.FromType(returnType);
}
internal override PhpTypeCode EmitCall(CodeGenerator/*!*/ codeGenerator, string fallbackQualifiedName, CallSignature callSignature,
IPlace instance, bool runtimeVisibilityCheck, int overloadIndex, DType type, Position position,
AccessType access, bool callVirt)
{
if (IsStatic != (instance == null) || runtimeVisibilityCheck)
{
Expression targetExpression = null;
if (instance != null)
{
targetExpression = ExpressionPlace.GetExpression(instance); // the instance expression, $this would be determined in runtime
Debug.Assert(targetExpression != null || instance == IndexedPlace.ThisArg,
"Unexpected instance IPlace type" + this.Name.Value);
}
// call the operator if we could not provide an appropriate instance or the visibility has to be checked:
return codeGenerator.EmitRoutineOperatorCall(this.UsesLateStaticBinding ? type : this.DeclaringType, targetExpression, this.FullName, fallbackQualifiedName, null, callSignature, access);
}
Debug.Assert(IsStatic == (instance == null));
if (IsStatic) callVirt = false; // never call static method virtually
ILEmitter il = codeGenerator.IL;
bool args_aware = (Properties & RoutineProperties.IsArgsAware) != 0;
var constructedType = type as ConstructedType;
// load the instance reference if we have one:
// Just here we need RealObject if possible. When calling CLR method on $this,
// Phalanger has "this.<proxy>" in "codeGenerator.SelfPlace". We need just "this".
EmitLoadInstanceUnwrapped(codeGenerator, instance);
// arg-full overload may not be present in the case of classes declared Class Library where
// we do not require the user to specify both overloads
if (args_aware || ArgFullInfo == null)
{
// args-aware routines //
Debug.Assert(callVirt == false, "Cannot call ArgLess stub virtually!");
// all arg-less stubs have the 'instance' parameter
if (instance == null) il.Emit(OpCodes.Ldnull);
// emits load of parameters to the PHP stack:
callSignature.EmitLoadOnPhpStack(codeGenerator);
// CALL <routine>(context.Stack)
codeGenerator.EmitLoadScriptContext();
il.Emit(OpCodes.Ldfld, Fields.ScriptContext_Stack);
if (this.UsesLateStaticBinding)
{
// <stack>.LateStaticBindType = <type>
il.Emit(OpCodes.Dup);
type.EmitLoadTypeDesc(codeGenerator, ResolveTypeFlags.None);
il.Emit(OpCodes.Stfld, Fields.PhpStack_LateStaticBindType);
}
il.Emit(OpCodes.Call, DType.MakeConstructed(ArgLessInfo, constructedType));
// arg-less overload's return value has to be type-cast to a reference if it returns one:
if (signature == null || signature.AliasReturn)
codeGenerator.IL.Emit(OpCodes.Castclass, typeof(PhpReference));
}
else
{
// args-unaware routines //
// CALL <routine>(context, <argumens>)
codeGenerator.EmitLoadScriptContext();
callSignature.EmitLoadOnEvalStack(codeGenerator, this);
il.Emit(callVirt ? OpCodes.Callvirt : OpCodes.Call, DType.MakeConstructed(ArgFullInfo, constructedType));
}
// marks transient sequence point just after the call:
codeGenerator.MarkTransientSequencePoint();
return ((signature == null || signature.AliasReturn) ? PhpTypeCode.PhpReference : PhpTypeCode.Object);
}
