public override void Compile(Emitter.Emitter emitter)
{
var leftType = Left.GetExpressionType(emitter);
var rightType = Right.GetExpressionType(emitter);
var type = GetExpressionType(emitter);
// subtract matrices
if(type == "matrix")
{
Left.Compile(emitter);
Right.Compile(emitter);
var matrixType = typeof(MN.Matrix<double>);
var method = emitter.AssemblyImport(matrixType.GetMethod("Subtract", new [] { matrixType } ));
emitter.EmitCall(method);
}
// subtract dicts
else if (type == "dict")
{
Left.Compile(emitter);
Right.Compile(emitter);
var dictType = typeof(Dict);
var method = emitter.AssemblyImport(dictType.GetMethod("Subtract", new[] { dictType }));
emitter.EmitCall(method);
}
// subtract complex numbers
else if (type == "complex")
{
Left.Compile(emitter);
if (leftType != "complex")
{
emitter.EmitUpcastBasicType(leftType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
Right.Compile(emitter);
if (rightType != "complex")
{
emitter.EmitUpcastBasicType(rightType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("op_Subtraction", new[] { typeof(SN.Complex), typeof(SN.Complex) })));
}
// add floating point numbers or integers
else if (type.IsAnyOf("int", "float"))
{
Left.Compile(emitter);
emitter.EmitUpcastBasicType(leftType, type);
Right.Compile(emitter);
emitter.EmitUpcastBasicType(rightType, type);
emitter.EmitSub();
}
}
public override void Compile(Emitter.Emitter emitter)
{
var leftType = Left.GetExpressionType(emitter);
var rightType = Right.GetExpressionType(emitter);
var type = GetExpressionType(emitter);
// divide matrix by a number
if(type == "matrix")
{
Left.Compile(emitter);
// division is broken, therefore multiply by an inverse value
emitter.EmitLoadFloat(1);
Right.Compile(emitter);
if (rightType != "float")
emitter.EmitConvertToFloat();
emitter.EmitDiv();
var matrixType = typeof(MN.Matrix<double>);
var method = emitter.AssemblyImport(matrixType.GetMethod("Multiply", new[] { typeof(double) }));
emitter.EmitCall(method);
}
// divide complex numbers
else if (type == "complex")
{
Left.Compile(emitter);
if (leftType != "complex")
{
emitter.EmitUpcastBasicType(leftType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
Right.Compile(emitter);
if (rightType != "complex")
{
emitter.EmitUpcastBasicType(rightType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("op_Division", new[] { typeof(SN.Complex), typeof(SN.Complex) })));
}
// divide floating point numbers or integers
else if (type.IsAnyOf("int", "float"))
{
Left.Compile(emitter);
emitter.EmitUpcastBasicType(leftType, type);
Right.Compile(emitter);
emitter.EmitUpcastBasicType(rightType, type);
emitter.EmitDiv();
}
}
public override void Compile(Emitter.Emitter emitter)
{
try
{
Resolve(emitter);
}
catch (CompilerException ex)
{
ex.AffixToLexem(Lexem);
throw;
}
var method = emitter.FindMethod(OwnerType, Name, GetSignature(emitter));
// load 'this'
if (ExpressionPrefix != null)
ExpressionPrefix.Compile(emitter);
else if (!Static)
emitter.EmitLoadThis();
// load parameters
for (int idx = 0; idx < Parameters.Count; idx++)
{
Parameters[idx].Compile(emitter);
emitter.EmitUpcastBasicType(Parameters[idx].GetExpressionType(emitter), method.Parameters[idx].Type.Signature);
}
// invoke
emitter.EmitCall(method);
}
public override void Compile(Emitter.Emitter emitter)
{
// declare variables and methods
var tmpVar = emitter.CurrentMethod.Scope.Introduce("dict", emitter.ResolveType("dict"));
var ctor = emitter.AssemblyImport(typeof(MirelleStdlib.Dict).GetConstructor(new Type[] { }));
var set = emitter.FindMethod("dict", "set", "string", "string");
// var tmp = new dict
emitter.EmitNewObj(ctor);
emitter.EmitSaveVariable(tmpVar);
// tmp[key] = value
foreach(var curr in Data)
{
var keyType = curr.Item1.GetExpressionType(emitter);
var valueType = curr.Item2.GetExpressionType(emitter);
if (keyType != "string")
Error(Resources.errDictItemTypeMismatch, curr.Item1.Lexem);
if (valueType != "string")
Error(Resources.errDictItemTypeMismatch, curr.Item2.Lexem);
emitter.EmitLoadVariable(tmpVar);
curr.Item1.Compile(emitter);
curr.Item2.Compile(emitter);
emitter.EmitCall(set);
}
emitter.EmitLoadVariable(tmpVar);
}
public override void Compile(Emitter.Emitter emitter)
{
var fromType = From.GetExpressionType(emitter);
var toType = To.GetExpressionType(emitter);
if (fromType != "int" || toType != "int")
Error(Resources.errRangeLimitsIntExpected);
From.Compile(emitter);
To.Compile(emitter);
emitter.EmitNewObj(emitter.FindMethod("range", ".ctor", "int", "int"));
}
public override void Compile(Emitter.Emitter emitter)
{
var type = Expression.GetExpressionType(emitter);
if (type.IsAnyOf("int", "float", "complex"))
{
if(type == "complex")
{
// simple case: the complex is a constant
if(Expression is ComplexNode)
{
(Expression as ComplexNode).Imaginary *= -1;
Expression.Compile(emitter);
}
// complex case: complex is an expression result
else
{
Expression.Compile(emitter);
// tmp = ...
var tmpVar = emitter.CurrentMethod.Scope.Introduce("complex", emitter.FindType("complex").Type);
emitter.EmitSaveVariable(tmpVar);
// tmp.real
emitter.EmitLoadVariableAddress(tmpVar);
emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("get_Real")));
// tmp.imaginary * -1
emitter.EmitLoadVariableAddress(tmpVar);
emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("get_Imaginary")));
emitter.EmitLoadFloat(-1);
emitter.EmitMul();
// new complex
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
}
else
{
// multiply by -1
Expression.Compile(emitter);
if (type == "int")
emitter.EmitLoadInt(-1);
else
emitter.EmitLoadFloat(-1);
emitter.EmitMul();
}
}
else
Error(String.Format(Resources.errInvertType, type));
}
public override void Compile(Emitter.Emitter emitter)
{
// check if condition is boolean or can be converted
var condType = Condition.GetExpressionType(emitter);
MethodNode converter = null;
if (condType != "bool")
{
try
{
converter = emitter.FindMethod(condType, "to_b");
}
catch
{
Error(Resources.errBoolExpected);
}
}
FalseBlockStart = emitter.CreateLabel();
// condition
Condition.Compile(emitter);
if (converter != null)
emitter.EmitCall(converter);
emitter.EmitBranchFalse(FalseBlockStart);
// "true" body
TrueBlock.Compile(emitter);
// there is a false block?
if(FalseBlock != null)
{
// create a jump
FalseBlockEnd = emitter.CreateLabel();
emitter.EmitBranch(FalseBlockEnd);
emitter.PlaceLabel(FalseBlockStart);
// "false" body
FalseBlock.Compile(emitter);
emitter.PlaceLabel(FalseBlockEnd);
}
else
{
// put the 'nop' after the condition body
emitter.PlaceLabel(FalseBlockStart);
}
}
public override void Compile(Emitter.Emitter emitter)
{
// check if constructor exists
TypeNode type = null;
try
{
type = emitter.FindType(Name);
}
catch
{
Error(String.Format(Resources.errTypeNotFound, Name));
}
// check if type is an enum?
if (type.Enum)
{
// the constructor in an enum is pseudo-private
// so that it can only be called from another method
// of the same enum type
if(emitter.CurrentMethod == null || emitter.CurrentMethod.Owner != type)
Error(String.Format(Resources.errConstructEnum, Name));
}
MethodNode method = null;
var signature = GetSignature(emitter);
try
{
method = emitter.FindMethod(Name, ".ctor", signature);
}
catch
{
Error(String.Format(Resources.errConstructorNotFound, Name, signature.Join(" ")));
}
// parameters
for (int idx = 0; idx < Parameters.Count; idx++)
{
Parameters[idx].Compile(emitter);
emitter.EmitUpcastBasicType(Parameters[idx].GetExpressionType(emitter), method.Parameters[idx].Type.Signature);
}
emitter.EmitNewObj(method);
}
public override void Compile(Emitter.Emitter emitter)
{
// check if condition is boolean
var condType = Condition.GetExpressionType(emitter);
MethodNode converter = null;
if (condType != "bool")
{
try
{
converter = emitter.FindMethod(condType, "to_b");
}
catch
{
Error(Resources.errBoolExpected);
}
}
// create markers
BodyStart = emitter.CreateLabel();
BodyEnd = emitter.CreateLabel();
emitter.PlaceLabel(BodyStart);
// condition
Condition.Compile(emitter);
if (converter != null)
emitter.EmitCall(converter);
emitter.EmitBranchFalse(BodyEnd);
// body
var preCurrLoop = emitter.CurrentLoop;
emitter.CurrentLoop = this;
Body.Compile(emitter);
emitter.CurrentLoop = preCurrLoop;
// re-test condition
emitter.EmitBranch(BodyStart);
emitter.PlaceLabel(BodyEnd);
}
public override void Compile(Emitter.Emitter emitter)
{
try
{
Resolve(emitter);
}
catch (CompilerException ex)
{
ex.AffixToLexem(Lexem);
throw;
}
switch (Kind)
{
case IdentifierKind.StaticField: emitter.EmitLoadField(emitter.FindField(OwnerType, Name)); break;
case IdentifierKind.Field: if(ExpressionPrefix != null)
ExpressionPrefix.Compile(emitter);
else
emitter.EmitLoadThis();
emitter.EmitLoadField(emitter.FindField(OwnerType, Name)); break;
case IdentifierKind.StaticMethod: emitter.EmitCall(emitter.FindMethod(OwnerType, Name)); break;
case IdentifierKind.Method: if (ExpressionPrefix != null)
ExpressionPrefix.Compile(emitter);
else
emitter.EmitLoadThis();
emitter.EmitCall(emitter.FindMethod(OwnerType, Name)); break;
case IdentifierKind.Variable: emitter.EmitLoadVariable(emitter.CurrentMethod.Scope.Find(Name)); break;
case IdentifierKind.Parameter: emitter.EmitLoadParameter(emitter.CurrentMethod.Parameters[Name].Id); break;
case IdentifierKind.SizeProperty: ExpressionPrefix.Compile(emitter);
emitter.EmitLoadArraySize(); break;
}
}
/// <summary>
/// Generate code to setup the currently defined emitter
/// </summary>
/// <param name="emitter"></param>
private void CompileInitiation(Emitter.Emitter emitter)
{
var flowSimType = emitter.FindType(PlannerID);
var tmpVar = emitter.CurrentMethod.Scope.Introduce(PlannerID, flowSimType.Type);
// tmp = new flowsimN()
emitter.EmitNewObj(emitter.FindMethod(PlannerID, ".ctor"));
emitter.EmitSaveVariable(tmpVar);
SaveClosuredVariables(emitter, tmpVar);
// call FlowSimulation.Start(planner)
emitter.EmitLoadVariable(tmpVar);
var method = emitter.AssemblyImport(typeof(FlowSimulation).GetMethod("Start", new[] { typeof(Planner) }));
emitter.EmitCall(method);
}
/// <summary>
/// Generate action and condition (possibly) for the currently defined emitter
/// </summary>
/// <param name="emitter"></param>
private void CompileBody(Emitter.Emitter emitter)
{
// compile action
emitter.CurrentMethod = emitter.FindMethod(PlannerID, "Action", "flow[]", "symbol");
emitter.MakeMethodVirtual(emitter.CurrentMethod);
LoadClosuredVariables(Closures, emitter);
emitter.EmitLoadParameter(0);
emitter.EmitLoadParameter(1);
Action.Compile(emitter);
// append the arguments to the user
emitter.EmitReturn();
}
/// <summary>
/// Create iteration code for a range
/// </summary>
/// <param name="emitter"></param>
public void CompileRange(Emitter.Emitter emitter)
{
// make local variables only visible inside the scope
emitter.CurrentMethod.Scope.EnterSubScope();
var idxVar = emitter.CurrentMethod.Scope.Introduce("int", emitter.ResolveType("int"), Key == null ? null : Key.Data);
var rangeVar = emitter.CurrentMethod.Scope.Introduce("range", emitter.ResolveType("range"));
var currVar = emitter.CurrentMethod.Scope.Introduce("int", emitter.ResolveType("int"), Item.Data);
// preface: range = ..., range.reset
Iterable.Compile(emitter);
emitter.EmitSaveVariable(rangeVar);
emitter.EmitLoadVariable(rangeVar);
emitter.EmitCall(emitter.FindMethod("range", "reset"));
// set key if exists
if(Key != null)
{
emitter.EmitLoadInt(-1);
emitter.EmitSaveVariable(idxVar);
}
// range.next == false ? exit
emitter.PlaceLabel(BodyStart);
emitter.EmitLoadVariable(rangeVar);
emitter.EmitCall(emitter.FindMethod("range", "next"));
emitter.EmitLoadBool(false);
emitter.EmitCompareEqual();
emitter.EmitBranchTrue(BodyEnd);
// curr = range.current
emitter.EmitLoadVariable(rangeVar);
emitter.EmitCall(emitter.FindMethod("range", "current"));
emitter.EmitSaveVariable(currVar);
// increment key if exists
if(Key != null)
{
emitter.EmitLoadVariable(idxVar);
emitter.EmitLoadInt(1);
emitter.EmitAdd();
emitter.EmitSaveVariable(idxVar);
}
// body
var preCurrLoop = emitter.CurrentLoop;
emitter.CurrentLoop = this;
Body.Compile(emitter);
emitter.CurrentLoop = preCurrLoop;
emitter.EmitBranch(BodyStart);
emitter.PlaceLabel(BodyEnd);
emitter.CurrentMethod.Scope.LeaveSubScope();
}
/// <summary>
/// Create iteration code for a dictionary
/// </summary>
/// <param name="emitter"></param>
public void CompileDict(Emitter.Emitter emitter)
{
// check if key defined
if (Key == null)
Error(Resources.errDictIterKeyRequired);
// make local variables only visible inside the scope
emitter.CurrentMethod.Scope.EnterSubScope();
var dictVar = emitter.CurrentMethod.Scope.Introduce("dict", emitter.ResolveType("dict"));
var currVar = emitter.CurrentMethod.Scope.Introduce("string[]", emitter.ResolveType("string[]"));
var keyVar = emitter.CurrentMethod.Scope.Introduce("string", emitter.ResolveType("string"), Key.Data);
var itemVar = emitter.CurrentMethod.Scope.Introduce("string", emitter.ResolveType("string"), Item.Data);
// preface: dictVar = ...;
Iterable.Compile(emitter);
emitter.EmitSaveVariable(dictVar);
emitter.EmitLoadVariable(dictVar);
emitter.EmitCall(emitter.FindMethod("dict", "reset"));
// dict.next == false ? exit
emitter.PlaceLabel(BodyStart);
emitter.EmitLoadVariable(dictVar);
emitter.EmitCall(emitter.FindMethod("dict", "next"));
emitter.EmitLoadBool(false);
emitter.EmitCompareEqual();
emitter.EmitBranchTrue(BodyEnd);
// curr = dict.current
emitter.EmitLoadVariable(dictVar);
emitter.EmitCall(emitter.FindMethod("dict", "current"));
emitter.EmitSaveVariable(currVar);
// (key, value) = curr
emitter.EmitLoadVariable(currVar);
emitter.EmitLoadInt(0);
emitter.EmitLoadIndex("string");
emitter.EmitSaveVariable(keyVar);
emitter.EmitLoadVariable(currVar);
emitter.EmitLoadInt(1);
emitter.EmitLoadIndex("string");
emitter.EmitSaveVariable(itemVar);
// body
var preCurrLoop = emitter.CurrentLoop;
emitter.CurrentLoop = this;
Body.Compile(emitter);
emitter.CurrentLoop = preCurrLoop;
emitter.EmitBranch(BodyStart);
emitter.PlaceLabel(BodyEnd);
emitter.CurrentMethod.Scope.LeaveSubScope();
}
public override void Compile(Emitter.Emitter emitter)
{
emitter.EmitLoadFloat(Real);
emitter.EmitLoadFloat(Imaginary);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
public void Resolve(Emitter.Emitter emitter)
{
// build signature
var signature = GetSignature(emitter);
MethodNode method;
// type prefix ?
if(TypePrefix != null)
{
OwnerType = TypePrefix.Data;
Static = true;
// check class existence
emitter.FindType(OwnerType);
method = emitter.FindMethod(TypePrefix.Data, Name, signature);
if (!method.Static)
Error(String.Format(Resources.errNonStaticMethod, Name));
}
// expression prefix ?
else if(ExpressionPrefix != null)
{
OwnerType = ExpressionPrefix.GetExpressionType(emitter);
if (OwnerType == "null")
Error(Resources.errNullAccessor);
emitter.FindMethod(OwnerType, Name, signature);
}
// local or visible method ?
else
{
// try to find method in local type, if there's one
var tmpOwner = emitter.CurrentType != null ? emitter.CurrentType.Name : "";
method = emitter.FindMethod(tmpOwner, true, Name, signature);
OwnerType = method.Owner.Name;
Static = method.Static;
}
}
public override void Compile(Emitter.Emitter emitter)
{
var leftType = Left.GetExpressionType(emitter);
var rightType = Right.GetExpressionType(emitter);
var type = GetExpressionType(emitter);
// concat strings
if (type == "string")
{
Left.Compile(emitter);
Right.Compile(emitter);
emitter.EmitCall(emitter.FindMethod("string", "concat", "string", "string"));
}
// add matrices
else if(type == "matrix")
{
Left.Compile(emitter);
Right.Compile(emitter);
var matrixType = typeof(MN.Matrix<double>);
var method = emitter.AssemblyImport(matrixType.GetMethod("Add", new [] { matrixType } ));
emitter.EmitCall(method);
}
// add dicts
else if (type == "dict")
{
Left.Compile(emitter);
Right.Compile(emitter);
var dictType = typeof(Dict);
var method = emitter.AssemblyImport(dictType.GetMethod("Add", new[] { dictType }));
emitter.EmitCall(method);
}
// add complex numbers
else if(type == "complex")
{
Left.Compile(emitter);
if(leftType != "complex")
{
emitter.EmitUpcastBasicType(leftType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
Right.Compile(emitter);
if (rightType != "complex")
{
emitter.EmitUpcastBasicType(rightType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("op_Addition", new[] { typeof(SN.Complex), typeof(SN.Complex) })));
}
// add floating point numbers or integers
else if(type.IsAnyOf("int", "float"))
{
Left.Compile(emitter);
emitter.EmitUpcastBasicType(leftType, type);
Right.Compile(emitter);
emitter.EmitUpcastBasicType(rightType, type);
emitter.EmitAdd();
}
// array addition
else if(type.Contains("[]"))
{
Left.Compile(emitter);
Right.Compile(emitter);
var method = emitter.AssemblyImport(typeof(ArrayHelper).GetMethod("AddArrays", new[] { typeof(object), typeof(object) } ));
emitter.EmitCall(method);
}
}
public override string GetExpressionType(Emitter.Emitter emitter)
{
if (ExpressionType != "")
return ExpressionType;
try
{
Resolve(emitter);
}
catch(CompilerException ex)
{
ex.AffixToLexem(Lexem);
throw;
}
var method = emitter.FindMethod(OwnerType, Name, GetSignature(emitter));
ExpressionType = method != null ? method.Type.Signature : "";
return ExpressionType;
}
/// <summary>
/// Generate code to setup the currently defined emitter
/// </summary>
/// <param name="emitter"></param>
private void CompileInitiation(Emitter.Emitter emitter)
{
var emitterType = emitter.FindType(EmitterID);
var tmpVar = emitter.CurrentMethod.Scope.Introduce(EmitterID, emitterType.Type);
// tmp = new emitterN()
emitter.EmitNewObj(emitter.FindMethod(EmitterID, ".ctor"));
emitter.EmitSaveVariable(tmpVar);
// step
if (Step != null)
{
// validate step
var stepType = Step.GetExpressionType(emitter);
if (!stepType.IsAnyOf("int", "float"))
Error(Resources.errEmitStepExpected);
// tmp.Step = step
emitter.EmitLoadVariable(tmpVar);
Step.Compile(emitter);
if (stepType == "int")
emitter.EmitConvertToFloat();
emitter.EmitSaveField(emitter.FindField(EmitterID, "step"));
}
// distribution
if (Distribution != null)
{
// validate distr
if (Distribution.GetExpressionType(emitter) != "distr")
Error(Resources.errEmitDistributionExpected);
// tmp.Distr = distr
emitter.EmitLoadVariable(tmpVar);
Distribution.Compile(emitter);
emitter.EmitSaveField(emitter.FindField(EmitterID, "distr"));
}
// limit
if (Limit != null)
{
// validate distr
if (Limit.GetExpressionType(emitter) != "int")
Error(Resources.errEmitLimitExpected);
// tmp.Distr = distr
emitter.EmitLoadVariable(tmpVar);
Limit.Compile(emitter);
emitter.EmitSaveField(emitter.FindField(EmitterID, "limit"));
}
SaveClosuredVariables(emitter, tmpVar);
// register emitter in the system
emitter.EmitLoadVariable(tmpVar);
var registerMethod = emitter.AssemblyImport(typeof(Simulation).GetMethod("RegisterEmitter", new[] { typeof(EventEmitter) }));
emitter.EmitCall(registerMethod);
}
/// <summary>
/// Generate action and condition (possibly) for the currently defined emitter
/// </summary>
/// <param name="emitter"></param>
private void CompileBody(Emitter.Emitter emitter)
{
// compile action
emitter.CurrentMethod = emitter.FindMethod(EmitterID, "Action");
emitter.MakeMethodVirtual(emitter.CurrentMethod);
LoadClosuredVariables(ActionClosures, emitter);
Action.Compile(emitter);
if (!Action.GetExpressionType(emitter).IsAnyOf("void", ""))
emitter.EmitPop();
emitter.EmitReturn();
// compile condition, if any
if (Condition != null)
{
if (Condition.GetExpressionType(emitter) != "bool")
Error(Resources.errEmitConditionExpected);
emitter.CurrentMethod = emitter.FindMethod(EmitterID, "Condition");
emitter.MakeMethodVirtual(emitter.CurrentMethod);
LoadClosuredVariables(ConditionClosures, emitter);
Condition.Compile(emitter);
emitter.EmitReturn();
}
}
public override void Compile(Emitter.Emitter emitter)
{
var leftType = Left.GetExpressionType(emitter);
var rightType = Right.GetExpressionType(emitter);
var type = GetExpressionType(emitter);
// repeat a string
if (type == "string")
{
Left.Compile(emitter);
Right.Compile(emitter);
emitter.EmitCall(emitter.FindMethod("string", "repeat", "int"));
}
// multiply matrices
else if(type == "matrix")
{
var matrixType = typeof(MN.Matrix<double>);
// matrix by matrix
if(leftType == rightType)
{
Left.Compile(emitter);
Right.Compile(emitter);
var method = emitter.AssemblyImport(matrixType.GetMethod("Multiply", new[] { matrixType }));
emitter.EmitCall(method);
}
else
{
// matrix should be the first in stack
if(leftType == "matrix")
{
Left.Compile(emitter);
Right.Compile(emitter);
if (rightType != "float")
emitter.EmitConvertToFloat();
}
else
{
Right.Compile(emitter);
Left.Compile(emitter);
if (leftType != "float")
emitter.EmitConvertToFloat();
}
var method = emitter.AssemblyImport(matrixType.GetMethod("Multiply", new[] { typeof(double) }));
emitter.EmitCall(method);
}
}
// multiply complex numbers
else if (type == "complex")
{
Left.Compile(emitter);
if (leftType != "complex")
{
emitter.EmitUpcastBasicType(leftType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
Right.Compile(emitter);
if (rightType != "complex")
{
emitter.EmitUpcastBasicType(rightType, "float");
emitter.EmitLoadFloat(0);
emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
}
emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("op_Multiply", new[] { typeof(SN.Complex), typeof(SN.Complex) })));
}
// repeat array
else if (leftType.EndsWith("[]"))
{
Left.Compile(emitter);
Right.Compile(emitter);
var method = emitter.AssemblyImport(typeof(MirelleStdlib.ArrayHelper).GetMethod("RepeatArray", new[] { typeof(object), typeof(int) }));
emitter.EmitCall(method);
}
// multiply floating point numbers or integers
else if (type.IsAnyOf("int", "float"))
{
Left.Compile(emitter);
emitter.EmitUpcastBasicType(leftType, type);
Right.Compile(emitter);
emitter.EmitUpcastBasicType(rightType, type);
emitter.EmitMul();
}
}
/// <summary>
/// Ensure two values can be compared, or issue an exception
/// </summary>
/// <param name="leftType">Left-hand operand type</param>
/// <param name="rightType">Right-hand operand type</param>
private void CheckComparable(string leftType, string rightType, Emitter.Emitter emitter)
{
var ok = false;
var byValueTypes = new[] { "bool", "int", "float", "complex", "long" };
var numericTypes = new[] { "int", "float", "complex", "long" };
// equality comparison
if(ComparisonType == LexemType.Equal || ComparisonType == LexemType.NotEqual)
{
// null and ref-type
if(leftType == "null" && !rightType.IsAnyOf(byValueTypes))
ok = true;
// ref-type and null
else if(rightType == "null" && !leftType.IsAnyOf(byValueTypes))
ok = true;
// types are equal and meaningful
else if(leftType == rightType && leftType != "void" && leftType != "")
ok = true;
// numeric types
else if(leftType.IsAnyOf(numericTypes) && rightType.IsAnyOf(numericTypes))
{
// @TODO: rewrite! a clumsy kludge!
var zomg = leftType + rightType;
if(!zomg.Contains("complex") || !zomg.Contains("long"))
ok = true;
}
// a valid comparator exits
else
{
try
{
emitter.FindMethod(leftType, "equal", rightType);
ok = true;
}
catch
{
try
{
emitter.FindMethod(rightType, "equal", leftType);
ok = true;
}
catch { }
}
}
if(!ok)
Error(String.Format(Resources.errIncomparableTypes, leftType, rightType));
}
// relation comparison
else
{
// strings
if(leftType == "string" && rightType == "string")
ok = true;
// numeric types
else if (leftType.IsAnyOf(numericTypes) && rightType.IsAnyOf(numericTypes))
{
// complex cannot be related (math law!)
if(leftType != "complex" && rightType != "complex")
ok = true;
}
if(!ok)
{
if(leftType == rightType)
Error(String.Format(Resources.errRelationIncomparableTypes, leftType));
else
Error(String.Format(Resources.errIncomparableTypes, leftType, rightType));
}
}
}
public override void Compile(Emitter.Emitter emitter)
{
var fromType = Expression.GetExpressionType(emitter);
var toType = ToType;
var simpleTypes = new[] { "bool", "int", "float", "long", "complex" };
if (emitter.ResolveType(toType) == null)
Error(String.Format(Resources.errTypeNotFound, toType));
// compile the expression itself
Expression.Compile(emitter);
// idiotic case?
if (fromType == toType) return;
if(fromType == "null")
{
if(toType.IsAnyOf(simpleTypes))
Error(String.Format(Resources.errInvalidNullCast, toType));
// no actual casting is required
}
// cast simple types
else if(fromType.IsAnyOf(simpleTypes))
{
if (toType.IsAnyOf(simpleTypes))
{
switch(toType)
{
case "bool": emitter.EmitConvertToBool(); break;
case "int": emitter.EmitConvertToInt(); break;
case "float": emitter.EmitConvertToFloat(); break;
default: throw new NotImplementedException();
}
}
else
Error(String.Format(Resources.errInvalidCast, fromType, toType));
}
else
{
// complex type to simple type: search for a conversion method
if(toType.IsAnyOf(simpleTypes))
{
// to_b, to_f, to_i
string methodName = "to_" + toType[0];
MethodNode converter = null;
try
{
converter = emitter.FindMethod(fromType, methodName);
}
catch
{
Error(String.Format(Resources.errInvalidCast, fromType, toType));
}
// call the method
emitter.EmitCall(converter);
}
else
{
if (fromType.Contains("[]") || toType.Contains("[]"))
Error(Resources.errCastArray);
if(!emitter.TypeCastable(fromType, toType))
Error(String.Format(Resources.errInvalidCast, fromType, toType));
var type = emitter.FindType(toType);
emitter.EmitCast(type.Type);
}
}
}
public override void Compile(Emitter.Emitter emitter)
{
if (!BuiltIn)
{
emitter.CurrentMethod = this;
// special cases for constructors
if(Name == ".ctor")
{
// invoke base constructor
emitter.EmitLoadThis();
if(emitter.CurrentType.Parent != "")
emitter.EmitCall(emitter.FindMethod(emitter.CurrentType.Parent, ".ctor"));
else
emitter.EmitCall(emitter.AssemblyImport(typeof(object).GetConstructor(new Type[] { } )));
// invoke initializer
if (emitter.MethodNameExists(emitter.CurrentType.Name, ".init"))
{
emitter.EmitLoadThis();
emitter.EmitCall(emitter.FindMethod(emitter.CurrentType.Name, ".init"));
}
}
Body.Compile(emitter);
if (!Body.AllPathsReturn)
{
if (Type.Signature == "void")
emitter.EmitReturn();
else
Error(String.Format(Resources.errNotAllPathsReturn, Name));
}
emitter.CurrentMethod = null;
}
}
public override string GetExpressionType(Emitter.Emitter emitter)
{
if (ExpressionType != "")
return ExpressionType;
try
{
Resolve(emitter);
}
catch (CompilerException ex)
{
ex.AffixToLexem(Lexem);
throw;
}
switch(Kind)
{
case IdentifierKind.StaticField:
case IdentifierKind.Field: ExpressionType = emitter.FindField(OwnerType, Name).Type.Signature; break;
case IdentifierKind.StaticMethod:
case IdentifierKind.Method: ExpressionType = emitter.FindMethod(OwnerType, Name).Type.Signature; break;
case IdentifierKind.Variable: ExpressionType = emitter.CurrentMethod.Scope.Find(Name).Type; break;
case IdentifierKind.Parameter: ExpressionType = emitter.CurrentMethod.Parameters[Name].Type.Signature; break;
case IdentifierKind.SizeProperty: ExpressionType = "int"; break;
}
return ExpressionType;
}
/// <summary>
/// Compile a dictionary indexer
/// </summary>
/// <param name="emitter"></param>
private void CompileDict(Emitter.Emitter emitter)
{
// ensure index is a string
if (Index.GetExpressionType(emitter) != "string")
Error(Resources.errStringExpected, Index.Lexem);
ExpressionPrefix.Compile(emitter);
Index.Compile(emitter);
var method = emitter.FindMethod("dict", "get", "string");
emitter.EmitCall(method);
}
/// <summary>
/// Resolve the identifier meaning
/// </summary>
public void Resolve(Emitter.Emitter emitter)
{
// already resolved?
if (Kind != IdentifierKind.Unresolved) return;
// atmark?
if (AtmarkPrefix)
{
if (emitter.CurrentType == null)
Error(Resources.errFieldOutsideType);
OwnerType = emitter.CurrentType.Name;
var field = emitter.FindField(emitter.CurrentType.Name, Name);
if (field != null)
Kind = field.Static ? IdentifierKind.StaticField : IdentifierKind.Field;
else
Error(String.Format(Resources.errFieldNotFound, Name, emitter.CurrentType.Name));
// additional check: dynamic field from static method
if (emitter.CurrentMethod.Static && !field.Static)
Error(String.Format(Resources.errDynamicFromStatic, field.Name));
}
// other prefix?
else if (TypePrefix != null || ExpressionPrefix != null)
{
OwnerType = (TypePrefix != null ? TypePrefix.Data : ExpressionPrefix.GetExpressionType(emitter));
if (OwnerType == "null")
Error(Resources.errNullAccessor);
if(OwnerType.EndsWith("[]") && Name == "size")
{
Kind = IdentifierKind.SizeProperty;
return;
}
// check class existence
emitter.FindType(OwnerType);
// field ?
try
{
emitter.FindField(OwnerType, Name);
Kind = (TypePrefix != null ? IdentifierKind.StaticField : IdentifierKind.Field);
return;
}
catch { }
// method ?!
MethodNode method = null;
try
{
method = emitter.FindMethod(OwnerType, Name);
}
catch
{
Error(String.Format(Resources.errTypeIdentifierUnresolved, OwnerType, Name));
}
if (ExpressionPrefix == null && !method.Static)
Error(String.Format(Resources.errNonStaticMethod, Name));
Kind = (TypePrefix != null ? IdentifierKind.StaticMethod : IdentifierKind.Method);
}
else
{
MethodNode method = null;
// local variable
if (emitter.CurrentMethod.Scope.Exists(Name))
{
Kind = IdentifierKind.Variable;
return;
}
// parameter
if(emitter.CurrentMethod.Parameters.Contains(Name))
{
Kind = IdentifierKind.Parameter;
return;
}
// search for a method
try
{
method = emitter.FindMethod(emitter.CurrentType != null ? emitter.CurrentType.Name : "", true, Name);
}
catch
{
Error(String.Format(Resources.errIdentifierUnresolved, Name));
}
OwnerType = method.Owner.Name;
if(method.Static)
Kind = IdentifierKind.StaticMethod;
else
{
// additional check for invoking a dynamic method from static context
if (emitter.CurrentMethod == null || emitter.CurrentMethod.Static)
Error(String.Format(Resources.errDynamicFromStatic, Name));
Kind = IdentifierKind.Method;
}
}
}
