private static void GenerateBaseInitializerExpression(ScriptGenerator generator, MemberSymbol symbol,
BaseInitializerExpression expression)
{
ScriptTextWriter writer = generator.Writer;
Debug.Assert(symbol.Parent is ClassSymbol);
ClassSymbol baseClass = ((ClassSymbol)symbol.Parent).BaseClass;
Debug.Assert(baseClass != null);
writer.Write(baseClass.FullGeneratedName);
writer.Write(".call(this");
if (expression.Parameters != null)
{
writer.Write(", ");
GenerateExpressionList(generator, symbol, expression.Parameters);
}
writer.Write(")");
}
private static void GenerateSwitchStatement(ScriptGenerator generator, MemberSymbol symbol,
SwitchStatement statement)
{
ScriptTextWriter writer = generator.Writer;
writer.Write("switch (");
ExpressionGenerator.GenerateExpression(generator, symbol, statement.Condition);
writer.WriteLine(") {");
writer.Indent++;
foreach (SwitchGroup group in statement.Groups)
{
if (group.Cases != null)
{
foreach (Expression caseExpression in group.Cases)
{
writer.Write("case ");
ExpressionGenerator.GenerateExpression(generator, symbol, caseExpression);
writer.WriteLine(":");
}
}
if (group.IncludeDefault)
{
writer.WriteLine("default:");
}
writer.Indent++;
foreach (Statement childStatement in group.Statements)
{
GenerateStatement(generator, symbol, childStatement);
}
writer.Indent--;
}
writer.Indent--;
writer.WriteLine("}");
}
private static void GenerateProperty(ScriptGenerator generator, string typeName, PropertySymbol propertySymbol)
{
if (propertySymbol.IsAbstract)
{
return;
}
ScriptTextWriter writer = generator.Writer;
bool instanceMember = true;
if ((propertySymbol.Visibility & MemberVisibility.Static) != 0)
{
instanceMember = false;
}
if (propertySymbol.HasGetter)
{
GeneratePropertyGetter(generator, typeName, propertySymbol, writer, instanceMember);
}
if (propertySymbol.HasSetter)
{
if (instanceMember && propertySymbol.HasGetter)
{
writer.WriteLine(",");
}
GeneratePropertySetter(generator, typeName, propertySymbol, writer, instanceMember);
}
if (propertySymbol.Visibility.HasFlag(MemberVisibility.Static) && propertySymbol.IsAutoProperty())
{
writer.Write(DSharpStringResources.ScriptExportMember("defineProperty"));
writer.Write($"({((ClassSymbol)propertySymbol.Parent).FullGeneratedName}, '{propertySymbol.GeneratedName}');");
writer.WriteLine();
}
}
private static void GenerateWhileStatement(ScriptGenerator generator, MemberSymbol symbol,
WhileStatement statement)
{
if (statement.Body == null)
{
return;
}
ScriptTextWriter writer = generator.Writer;
if (statement.PreCondition)
{
writer.Write("while (");
ExpressionGenerator.GenerateExpression(generator, symbol, statement.Condition);
writer.WriteLine(") {");
}
else
{
writer.WriteLine("do {");
}
writer.Indent++;
GenerateStatement(generator, symbol, statement.Body);
writer.Indent--;
if (statement.PreCondition)
{
writer.WriteLine("}");
}
else
{
writer.Write("} while (");
ExpressionGenerator.GenerateExpression(generator, symbol, statement.Condition);
writer.WriteLine(");");
}
}
private static void GeneratePropertyGetter(ScriptGenerator generator, string typeName,
PropertySymbol propertySymbol, ScriptTextWriter writer,
bool instanceMember)
{
if (instanceMember)
{
writer.Write("$get_");
writer.Write(propertySymbol.GeneratedName);
writer.Write(": ");
}
else
{
writer.Write($"{DSharpStringResources.ScriptExportMember("createPropertyGet")}(");
writer.Write(typeName);
writer.Write(", '");
writer.Write(propertySymbol.GeneratedName);
writer.Write("', ");
}
writer.WriteLine("function() {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, propertySymbol);
}
CodeGenerator.GenerateScript(generator, propertySymbol, /* getter */ true);
writer.Indent--;
writer.Write("}");
if (instanceMember == false)
{
writer.WriteLine(");");
}
}
private static void GenerateIndexer(ScriptGenerator generator, string typeName, PropertySymbol indexerSymbol)
{
if (indexerSymbol.IsAbstract)
{
return;
}
Debug.Assert((indexerSymbol.Visibility & MemberVisibility.Static) == 0);
ScriptTextWriter writer = generator.Writer;
writer.Write("get_");
writer.Write(indexerSymbol.GeneratedName);
writer.Write(": function(");
for (int i = 0; i < indexerSymbol.Parameters.Count - 1; i++)
{
ParameterSymbol parameterSymbol = indexerSymbol.Parameters[i];
if (i > 0)
{
writer.Write(", ");
}
writer.Write(parameterSymbol.GeneratedName);
}
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, indexerSymbol);
}
CodeGenerator.GenerateScript(generator, (IndexerSymbol)indexerSymbol, /* getter */ true);
writer.Indent--;
writer.Write("}");
if (indexerSymbol.IsReadOnly == false)
{
writer.WriteLine(",");
writer.Write("set_");
writer.Write(indexerSymbol.GeneratedName);
writer.Write(": function(");
for (int i = 0; i < indexerSymbol.Parameters.Count; i++)
{
ParameterSymbol parameterSymbol = indexerSymbol.Parameters[i];
if (i > 0)
{
writer.Write(", ");
}
writer.Write(parameterSymbol.GeneratedName);
}
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, indexerSymbol);
}
CodeGenerator.GenerateScript(generator, (IndexerSymbol)indexerSymbol, /* getter */ false);
writer.Write("return ");
writer.Write(indexerSymbol.Parameters[indexerSymbol.Parameters.Count - 1].GeneratedName);
writer.WriteLine(";");
writer.Indent--;
writer.Write("}");
}
}
private static void GenerateClass(ScriptGenerator generator, ClassSymbol classSymbol)
{
ScriptTextWriter writer = generator.Writer;
string name = classSymbol.FullGeneratedName;
writer.Write("function ");
writer.Write(name);
writer.Write("(");
if (classSymbol.Constructor != null && classSymbol.Constructor.Parameters != null)
{
bool firstParameter = true;
foreach (ParameterSymbol parameterSymbol in classSymbol.Constructor.Parameters)
{
if (firstParameter == false)
{
writer.Write(", ");
}
writer.Write(parameterSymbol.GeneratedName);
firstParameter = false;
}
}
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, classSymbol);
}
foreach (MemberSymbol memberSymbol in classSymbol.Members)
{
if (memberSymbol.Type == SymbolType.Field &&
(memberSymbol.Visibility & MemberVisibility.Static) == 0)
{
FieldSymbol fieldSymbol = (FieldSymbol)memberSymbol;
if (fieldSymbol.HasInitializer)
{
writer.Write("this.");
writer.Write(fieldSymbol.GeneratedName);
writer.Write(" = ");
CodeGenerator.GenerateScript(generator, fieldSymbol);
writer.Write(";");
writer.WriteLine();
}
}
}
if (classSymbol.Constructor != null)
{
CodeGenerator.GenerateScript(generator, classSymbol.Constructor);
}
else if (classSymbol.BaseClass != null && classSymbol.IsTestClass == false)
{
writer.Write(classSymbol.BaseClass.FullGeneratedName);
writer.Write(".call(this);");
writer.WriteLine();
}
writer.Indent--;
writer.WriteLine("}");
foreach (MemberSymbol memberSymbol in classSymbol.Members)
{
if (memberSymbol.Type != SymbolType.Field &&
(memberSymbol.Visibility & MemberVisibility.Static) != 0)
{
MemberGenerator.GenerateScript(generator, memberSymbol);
}
}
if (classSymbol.IsStaticClass == false)
{
writer.Write("var ");
writer.Write(name);
writer.WriteLine("$ = {");
writer.Indent++;
bool firstMember = true;
foreach (MemberSymbol memberSymbol in classSymbol.Members)
{
if ((memberSymbol.Visibility & MemberVisibility.Static) == 0)
{
if (memberSymbol.Type == SymbolType.Field)
{
continue;
}
if (memberSymbol is CodeMemberSymbol &&
((CodeMemberSymbol)memberSymbol).IsAbstract)
{
continue;
}
if (firstMember == false)
{
writer.WriteLine(",");
}
MemberGenerator.GenerateScript(generator, memberSymbol);
firstMember = false;
}
}
if (classSymbol.Indexer != null)
{
if (firstMember == false)
{
writer.WriteLine(",");
}
MemberGenerator.GenerateScript(generator, classSymbol.Indexer);
}
writer.Indent--;
writer.WriteLine();
writer.Write("};");
writer.WriteLine();
}
}
public static void GenerateStatement(ScriptGenerator generator, MemberSymbol symbol, Statement statement)
{
switch (statement.Type)
{
case StatementType.Block:
GenerateBlockStatement(generator, symbol, (BlockStatement)statement);
break;
case StatementType.Empty:
break;
case StatementType.VariableDeclaration:
GenerateVariableDeclarationStatement(generator, symbol, (VariableDeclarationStatement)statement);
break;
case StatementType.Return:
GenerateReturnStatement(generator, symbol, (ReturnStatement)statement);
break;
case StatementType.Expression:
GenerateExpressionStatement(generator, symbol, (ExpressionStatement)statement);
break;
case StatementType.IfElse:
GenerateIfElseStatement(generator, symbol, (IfElseStatement)statement);
break;
case StatementType.While:
GenerateWhileStatement(generator, symbol, (WhileStatement)statement);
break;
case StatementType.For:
GenerateForStatement(generator, symbol, (ForStatement)statement);
break;
case StatementType.ForIn:
GenerateForInStatement(generator, symbol, (ForInStatement)statement);
break;
case StatementType.Switch:
GenerateSwitchStatement(generator, symbol, (SwitchStatement)statement);
break;
case StatementType.Break:
GenerateBreakStatement(generator, symbol, (BreakStatement)statement);
break;
case StatementType.Continue:
GenerateContinueStatement(generator, symbol, (ContinueStatement)statement);
break;
case StatementType.Throw:
GenerateThrowStatement(generator, symbol, (ThrowStatement)statement);
break;
case StatementType.TryCatchFinally:
GenerateTryCatchFinallyStatement(generator, symbol, (TryCatchFinallyStatement)statement);
break;
case StatementType.Error:
GenerateErrorStatement(generator, symbol, (ErrorStatement)statement);
break;
case StatementType.Using:
GenerateUsingStatement(generator, symbol, (UsingStatement)statement);
break;
default:
Debug.Fail("Unexpected statement type: " + statement.Type);
break;
}
}
private static void GenerateForInStatement(ScriptGenerator generator, MemberSymbol symbol,
ForInStatement statement)
{
ScriptTextWriter writer = generator.Writer;
TypeSymbol evaluatedType = statement.CollectionExpression.EvaluatedType;
if (statement.IsDictionaryEnumeration)
{
if (statement.DictionaryVariable != null)
{
writer.Write("var ");
writer.Write(statement.DictionaryVariable.GeneratedName);
writer.Write(" = ");
ExpressionGenerator.GenerateExpression(generator, symbol, statement.CollectionExpression);
writer.Write(";");
writer.WriteLine();
}
writer.Write("for (var ");
writer.Write(statement.LoopVariable.GeneratedName);
writer.Write(" in ");
if (statement.DictionaryVariable != null)
{
writer.Write(statement.DictionaryVariable.GeneratedName);
}
else
{
ExpressionGenerator.GenerateExpression(generator, symbol, statement.CollectionExpression);
}
writer.WriteLine(") {");
writer.Indent++;
writer.Write("var ");
writer.Write(statement.ItemVariable.GeneratedName);
writer.Write(" = { key: ");
writer.Write(statement.LoopVariable.GeneratedName);
writer.Write(", value: ");
if (statement.DictionaryVariable != null)
{
writer.Write(statement.DictionaryVariable.GeneratedName);
}
else
{
ExpressionGenerator.GenerateExpression(generator, symbol, statement.CollectionExpression);
}
writer.Write("[");
writer.Write(statement.LoopVariable.GeneratedName);
writer.WriteLine("] };");
GenerateStatement(generator, symbol, statement.Body);
writer.Indent--;
writer.WriteLine("}");
}
else if (evaluatedType.IsNativeArray || evaluatedType.IsListType())
{
string dataSourceVariableName = statement.LoopVariable.GeneratedName;
string indexVariableName = dataSourceVariableName + "_index";
// var $$ = ({CollectionExpression});
writer.Write("var " + dataSourceVariableName + " = (");
ExpressionGenerator.GenerateExpression(generator, symbol, statement.CollectionExpression);
writer.WriteLine(");");
// for(var items_index = 0; items_index < items.length; ++items_index) {
writer.WriteLine("for(var " + indexVariableName + " = 0; " + indexVariableName + " < " + dataSourceVariableName + ".length; ++" + indexVariableName + ") {");
++writer.Indent;
if (evaluatedType.IsNativeArray)
{
// var i = items[items_index];
writer.WriteLine("var " + statement.ItemVariable.GeneratedName + " = " + dataSourceVariableName + "[" + indexVariableName + "];");
}
else
{
// var i = ss.getItem(items, items_index);
writer.WriteLine("var " + statement.ItemVariable.GeneratedName + " = ss.getItem(" + dataSourceVariableName + ", " + indexVariableName + ");");
}
GenerateStatement(generator, symbol, statement.Body);
--writer.Indent;
writer.WriteLine("}");
}
else
{
writer.Write("var ");
writer.Write(statement.LoopVariable.GeneratedName);
writer.Write(" = ");
writer.Write($"{DSharpStringResources.ScriptExportMember("enumerate")}(");
ExpressionGenerator.GenerateExpression(generator, symbol, statement.CollectionExpression);
writer.Write(");");
writer.WriteLine();
writer.Write("while (");
writer.Write(statement.LoopVariable.GeneratedName);
writer.WriteLine(".moveNext()) {");
writer.Indent++;
writer.Write("var ");
writer.Write(statement.ItemVariable.GeneratedName);
writer.Write(" = ");
writer.Write(statement.LoopVariable.GeneratedName);
writer.Write(".current;");
writer.WriteLine();
GenerateStatement(generator, symbol, statement.Body);
writer.Indent--;
writer.Write("}");
writer.WriteLine();
}
}
private static void GenerateClassConstructor(ScriptGenerator generator, ClassSymbol classSymbol, ScriptTextWriter writer, string name)
{
writer.Write("function ");
writer.Write(name);
writer.Write("(");
if (classSymbol.Constructor != null && classSymbol.Constructor.Parameters != null)
{
bool firstParameter = true;
foreach (ParameterSymbol parameterSymbol in classSymbol.Constructor.Parameters)
{
if (firstParameter == false)
{
writer.Write(", ");
}
writer.Write(parameterSymbol.GeneratedName);
firstParameter = false;
}
}
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, classSymbol);
}
foreach (var property in GetNonReadonlyAutoProperties(classSymbol))
{
writer.Write(DSharpStringResources.ScriptExportMember("defineProperty"));
writer.Write($"(this, '{property.GeneratedName}');");
writer.WriteLine();
}
foreach (MemberSymbol memberSymbol in classSymbol.Members)
{
if (memberSymbol.Type == SymbolType.Field &&
(memberSymbol.Visibility & MemberVisibility.Static) == 0)
{
FieldSymbol fieldSymbol = (FieldSymbol)memberSymbol;
if (fieldSymbol.HasInitializer)
{
writer.Write("this.");
writer.Write(fieldSymbol.GeneratedName);
writer.Write(" = ");
CodeGenerator.GenerateScript(generator, fieldSymbol);
writer.Write(";");
writer.WriteLine();
}
}
}
if (classSymbol.Constructor != null)
{
CodeGenerator.GenerateScript(generator, classSymbol.Constructor);
}
else if (classSymbol.BaseClass != null)
{
writer.Write(classSymbol.BaseClass.FullGeneratedName);
writer.Write(".call(this);");
writer.WriteLine();
}
writer.Indent--;
writer.WriteLine("}");
}
private static void GenerateClassRegistrationScript(ScriptGenerator generator, ClassSymbol classSymbol)
{
ScriptTextWriter writer = generator.Writer;
//class definition
writer.Write($"{DSharpStringResources.ScriptExportMember("defineClass")}(");
writer.Write(classSymbol.FullGeneratedName);
writer.Write(", ");
if (classSymbol.IsStaticClass)
{
writer.Write("null, ");
}
else
{
writer.Write(classSymbol.FullGeneratedName);
writer.Write("$, ");
}
//constructor params
writer.Write("[");
if (classSymbol.Constructor != null && classSymbol.Constructor.Parameters != null)
{
bool firstParameter = true;
foreach (ParameterSymbol parameterSymbol in classSymbol.Constructor.Parameters)
{
if (firstParameter == false)
{
writer.Write(", ");
}
TypeSymbol parameterType = parameterSymbol.ValueType;
string parameterTypeName = GetParameterTypeName(parameterType);
writer.Write(parameterTypeName);
firstParameter = false;
}
}
writer.Write("], ");
//base class
if (classSymbol.BaseClass == null)
{
// TODO: We need to introduce the notion of a base class that only exists in the metadata
// and not at runtime. At that point this check of IsTestClass can be generalized.
writer.Write("null");
}
else
{
writer.Write(classSymbol.BaseClass.FullGeneratedName);
}
//interfaces
if (classSymbol.Interfaces != null)
{
writer.Write(", [");
bool first = true;
foreach (InterfaceSymbol inheritedInterface in classSymbol.Interfaces)
{
if (!first)
{
writer.Write(", ");
}
string parameterTypeName = GetParameterTypeName(inheritedInterface);
writer.Write(parameterTypeName);
first = false;
}
writer.Write("]");
}
writer.Write(")");
}
private static void GenerateBinaryExpression(ScriptGenerator generator, MemberSymbol symbol,
BinaryExpression expression)
{
ScriptTextWriter writer = generator.Writer;
if (expression.Operator == Operator.Equals)
{
if (expression.LeftOperand is PropertyExpression propExpression)
{
Debug.Assert(propExpression.Type == ExpressionType.PropertySet);
if (propExpression.ObjectReference is BaseExpression)
{
ClassSymbol classSymbol = (ClassSymbol)symbol.Parent;
writer.Write($"{DSharpStringResources.ScriptExportMember("baseProperty")}(");
writer.Write(classSymbol.FullGeneratedName);
writer.Write(", '");
writer.Write(propExpression.Property.GeneratedName);
writer.Write("').set.call(");
writer.Write(generator.CurrentImplementation.ThisIdentifier);
writer.Write(", ");
GenerateExpression(generator, symbol, expression.RightOperand);
writer.Write(")");
}
else
{
GenerateExpression(generator, symbol, propExpression.ObjectReference);
writer.Write(".");
writer.Write(propExpression.Property.GeneratedName);
writer.Write(" = ");
GenerateExpression(generator, symbol, expression.RightOperand);
}
propExpression.Property.IncrementReferenceCount();
return;
}
if (expression.LeftOperand is IndexerExpression indexExpression)
{
IndexerSymbol indexerSymbol = indexExpression.Indexer;
if (!indexerSymbol.UseScriptIndexer)
{
Debug.Assert(indexExpression.Type == ExpressionType.Indexer);
if (indexExpression.ObjectReference is BaseExpression objectReference)
{
writer.Write(objectReference.EvaluatedType.FullGeneratedName);
writer.Write(".prototype.set_");
writer.Write(indexerSymbol.GeneratedName);
writer.Write(".call(");
writer.Write(generator.CurrentImplementation.ThisIdentifier);
writer.Write(", ");
GenerateExpressionList(generator, symbol, indexExpression.Indices);
writer.Write(", ");
GenerateExpression(generator, symbol, expression.RightOperand);
writer.Write(")");
}
else
{
GenerateExpression(generator, symbol, indexExpression.ObjectReference);
writer.Write(".set_");
writer.Write(indexerSymbol.GeneratedName);
writer.Write("(");
GenerateExpressionList(generator, symbol, indexExpression.Indices);
writer.Write(", ");
GenerateExpression(generator, symbol, expression.RightOperand);
writer.Write(")");
}
indexExpression.Indexer.IncrementReferenceCount();
return;
}
else if (indexerSymbol.Parent is TypeSymbol typeSymbol && !typeSymbol.IsNativeArray)
{
writer.Write($"ss.setItem(");
GenerateExpression(generator, symbol, indexExpression.ObjectReference);
writer.Write(", ");
GenerateExpressionList(generator, symbol, indexExpression.Indices);
writer.Write(", ");
GenerateExpression(generator, symbol, expression.RightOperand);
writer.Write(")");
return;
}
}
}
else if (expression.Operator == Operator.PlusEquals ||
expression.Operator == Operator.MinusEquals ||
expression.Operator == Operator.MultiplyEquals ||
expression.Operator == Operator.DivideEquals ||
expression.Operator == Operator.ModEquals ||
expression.Operator == Operator.BitwiseOrEquals ||
expression.Operator == Operator.BitwiseAndEquals ||
expression.Operator == Operator.BitwiseXorEquals ||
expression.Operator == Operator.ShiftLeftEquals ||
expression.Operator == Operator.ShiftRightEquals ||
expression.Operator == Operator.UnsignedShiftRightEquals)
{
if (expression.LeftOperand is PropertyExpression propExpression)
{
Debug.Assert(propExpression.Type == ExpressionType.PropertyGet);
GenerateExpression(generator, symbol, propExpression.ObjectReference);
writer.Write(".");
writer.Write(propExpression.Property.GeneratedName);
writer.Write(" = ");
GenerateExpression(generator, symbol, propExpression.ObjectReference);
writer.Write(OperatorConverter.OperatorToString(expression.Operator - 1));
GenerateExpression(generator, symbol, expression.RightOperand);
propExpression.Property.IncrementReferenceCount();
return;
}
}
else if (expression.Operator == Operator.Is ||
expression.Operator == Operator.As)
{
TypeExpression typeExpression = expression.RightOperand as TypeExpression;
Debug.Assert(typeExpression != null);
writer.Write(DSharpStringResources.ScriptExportMember(string.Empty));
if (expression.Operator == Operator.Is)
{
writer.Write("canCast(");
}
else
{
writer.Write("safeCast(");
}
GenerateExpression(generator, symbol, expression.LeftOperand);
writer.Write(", ");
writer.Write(typeExpression.AssociatedType.FullGeneratedName);
writer.Write(")");
typeExpression.AssociatedType.IncrementReferenceCount();
return;
}
else if (expression.Operator == Operator.EqualEqualEqual ||
expression.Operator == Operator.NotEqualEqual)
{
if (expression.RightOperand is LiteralExpression literalExpression)
{
// Optimize generated script to perform loose equality checks for false-y values
// (null, false, 0, empty string)
// TODO: This should really be happening at compilation time, rather than generation
// time. Because this is happening at generation time, we get something like
// if (!!x) when if(x) would suffice just so we can get
// foo(!!x) where foo is a method expecting a boolean.
// Doing this at compilation time would allow handling if scenarios specially.
bool optimizable = false;
bool checkForFalse = false;
if (literalExpression.Value is bool compareValue)
{
optimizable = true;
if (compareValue && expression.Operator == Operator.NotEqualEqual ||
!compareValue && expression.Operator == Operator.EqualEqualEqual)
{
checkForFalse = true;
}
}
else if (literalExpression.Value is int i && i == 0)
{
optimizable = true;
checkForFalse = expression.Operator == Operator.EqualEqualEqual;
}
else if (literalExpression.Value is string s && s == string.Empty)
{
optimizable = true;
checkForFalse = expression.Operator == Operator.EqualEqualEqual;
}
if (optimizable)
{
bool parenthesize = false;
writer.Write(checkForFalse ? "!" : "!!");
if (expression.LeftOperand.Parenthesized == false &&
(expression.LeftOperand.Type == ExpressionType.Binary ||
expression.LeftOperand.Type == ExpressionType.Conditional ||
expression.LeftOperand.Type == ExpressionType.InlineScript))
{
parenthesize = true;
writer.Write("(");
}
GenerateExpression(generator, symbol, expression.LeftOperand);
if (parenthesize)
{
writer.Write(")");
}
return;
}
}
}
private static void GenerateMethod(ScriptGenerator generator, string typeName, MethodSymbol methodSymbol)
{
if (methodSymbol.IsAbstract)
{
return;
}
ScriptTextWriter writer = generator.Writer;
bool instanceMember = (methodSymbol.Visibility & MemberVisibility.Static) == 0;
if (instanceMember == false)
{
if (methodSymbol.IsExtension)
{
string extendee = null;
if (methodSymbol.Parent.Type == SymbolType.Class)
{
extendee = ((ClassSymbol)methodSymbol.Parent).Extendee;
}
if (string.IsNullOrEmpty(extendee))
{
extendee = "this";
}
writer.Write(extendee);
}
else
{
writer.Write(typeName);
}
writer.Write(".");
}
writer.Write(methodSymbol.GeneratedMemberName);
if (instanceMember)
{
writer.Write(": ");
}
else
{
writer.Write(" = ");
}
bool hasParams = HasParamsModifier(methodSymbol);
if (hasParams)
{
writer.Write($"{DSharpStringResources.ScriptExportMember("paramsGenerator")}(");
writer.Write("{0}, ", methodSymbol.Parameters.Count - 1);
}
writer.Write("function(");
WriteParameters(methodSymbol, writer);
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, methodSymbol);
}
CodeGenerator.GenerateScript(generator, methodSymbol);
writer.Indent--;
writer.Write("}");
if (hasParams)
{
writer.Write(")");
}
if (instanceMember == false)
{
writer.WriteLine(";");
}
}
private static void GenerateMethod(ScriptGenerator generator, string typeName, MethodSymbol methodSymbol)
{
if (methodSymbol.IsAbstract)
{
return;
}
ScriptTextWriter writer = generator.Writer;
bool instanceMember = (methodSymbol.Visibility & MemberVisibility.Static) == 0;
if (instanceMember == false)
{
writer.Write(typeName);
writer.Write(".");
}
writer.Write(methodSymbol.GeneratedMemberName);
if (instanceMember)
{
writer.Write(": ");
}
else
{
writer.Write(" = ");
}
bool hasParams = HasParamsModifier(methodSymbol);
if (hasParams)
{
writer.Write($"{DSharpStringResources.ScriptExportMember("paramsGenerator")}(");
writer.Write("{0}, ", methodSymbol.GetGeneratedParamsCount());
}
writer.Write("function(");
WriteParameters(methodSymbol, writer, true);
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, methodSymbol);
}
CodeGenerator.GenerateScript(generator, methodSymbol);
writer.Indent--;
writer.Write("}");
if (hasParams)
{
writer.Write(")");
}
if (instanceMember == false)
{
writer.WriteLine(";");
}
}
private static void GenerateEvent(ScriptGenerator generator, string typeName, EventSymbol eventSymbol)
{
ScriptTextWriter writer = generator.Writer;
ParameterSymbol valueParameter = eventSymbol.Parameters[0];
string eventName = eventSymbol.GeneratedName;
string fieldName = eventName;
if (eventSymbol.DefaultImplementation)
{
fieldName = "__" + Utility.CreateCamelCaseName(eventSymbol.Name);
Debug.Assert(eventSymbol.Parent.Type == SymbolType.Class);
Symbol fieldSymbol = ((ClassSymbol)eventSymbol.Parent).GetMember(fieldName);
Debug.Assert(fieldSymbol != null && fieldSymbol.Type == SymbolType.Field);
fieldName = fieldSymbol.GeneratedName;
}
string fieldReference;
if ((eventSymbol.Visibility & MemberVisibility.Static) == 0)
{
fieldReference = "this.";
}
else
{
fieldReference = typeName + ".";
}
fieldReference += fieldName;
bool instanceMember = true;
if ((eventSymbol.Visibility & MemberVisibility.Static) != 0)
{
instanceMember = false;
writer.Write(typeName);
writer.Write(".");
}
writer.Write("add_");
writer.Write(eventName);
if (instanceMember)
{
writer.Write(": ");
}
else
{
writer.Write(" = ");
}
writer.Write("function(");
writer.Write(valueParameter.GeneratedName);
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, eventSymbol);
}
if (eventSymbol.DefaultImplementation)
{
writer.Write(fieldReference);
writer.Write($" = {DSharpStringResources.ScriptExportMember("bindAdd")}(");
writer.Write(fieldReference);
writer.Write(", ");
writer.Write(valueParameter.GeneratedName);
writer.WriteLine(");");
}
else
{
CodeGenerator.GenerateScript(generator, eventSymbol, /* add */ true);
}
writer.Indent--;
writer.Write("}");
if (instanceMember == false)
{
writer.WriteLine(";");
}
if (instanceMember)
{
writer.WriteLine(",");
}
else
{
writer.Write(typeName);
writer.Write(".");
}
writer.Write("remove_");
writer.Write(eventName);
if (instanceMember)
{
writer.Write(": ");
}
else
{
writer.Write(" = ");
}
writer.Write("function(");
writer.Write(valueParameter.GeneratedName);
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, eventSymbol);
}
if (eventSymbol.DefaultImplementation)
{
writer.Write(fieldReference);
writer.Write($" = {DSharpStringResources.ScriptExportMember("bindSub")}(");
writer.Write(fieldReference);
writer.Write(", ");
writer.Write(valueParameter.GeneratedName);
writer.WriteLine(");");
}
else
{
CodeGenerator.GenerateScript(generator, eventSymbol, /* add */ false);
}
writer.Indent--;
writer.Write("}");
if (instanceMember == false)
{
writer.WriteLine(";");
}
}
public static void GenerateScript(ScriptGenerator generator, AnonymousMethodSymbol symbol)
{
GenerateImplementationScript(generator, symbol, symbol.Implementation);
}
public static void GenerateScript(ScriptGenerator generator, FieldSymbol symbol)
{
GenerateImplementationScript(generator, symbol, symbol.Implementation);
}
public static void GenerateScript(ScriptGenerator generator, TypeSymbol typeSymbol)
{
Debug.Assert(generator != null);
Debug.Assert(typeSymbol != null);
Debug.Assert(typeSymbol.IsApplicationType);
if (typeSymbol.Type == SymbolType.Delegate)
{
// No-op ... there is currently nothing to generate for a particular delegate type
return;
}
if (typeSymbol.Type == SymbolType.Record &&
typeSymbol.IsPublic == false &&
((RecordSymbol)typeSymbol).Constructor == null)
{
// Nothing to generate for internal records with no explicit ctor
return;
}
if (typeSymbol.Type == SymbolType.Class &&
((ClassSymbol)typeSymbol).IsModuleClass)
{
// No members on script modules, which only contain startup code
return;
}
ScriptTextWriter writer = generator.Writer;
writer.WriteLine("// " + typeSymbol.FullName);
writer.WriteLine();
switch (typeSymbol.Type)
{
case SymbolType.Class:
if (((ClassSymbol)typeSymbol).IsExtenderClass)
{
GenerateExtensionMethods(generator, (ClassSymbol)typeSymbol);
}
else
{
GenerateClass(generator, (ClassSymbol)typeSymbol);
}
break;
case SymbolType.Interface:
GenerateInterface(generator, (InterfaceSymbol)typeSymbol);
break;
case SymbolType.Enumeration:
GenerateEnumeration(generator, (EnumerationSymbol)typeSymbol);
break;
case SymbolType.Record:
GenerateRecord(generator, (RecordSymbol)typeSymbol);
break;
case SymbolType.Resources:
GenerateResources(generator, (ResourcesSymbol)typeSymbol);
break;
}
writer.WriteLine();
writer.WriteLine();
}
private static void GenerateClassConstructor(ScriptGenerator generator, ClassSymbol classSymbol, ScriptTextWriter writer, string name)
{
var ctorSymbol = classSymbol.Constructor;
if (HasParamsModifier(ctorSymbol))
{
writer.Write($"var {name} = ss.namedFunction('{name}',");
writer.Write($"{DSharpStringResources.ScriptExportMember("paramsGenerator")}(");
writer.Write($"{ctorSymbol.GetGeneratedParamsCount()}, function");
}
else
{
writer.Write("function ");
writer.Write(name);
}
writer.Write("(");
if (ctorSymbol != null && ctorSymbol.Parameters != null)
{
bool firstParameter = true;
foreach (ParameterSymbol parameterSymbol in ctorSymbol.Parameters)
{
if (firstParameter == false)
{
writer.Write(", ");
}
writer.Write(parameterSymbol.GeneratedName);
firstParameter = false;
}
}
writer.WriteLine(") {");
writer.Indent++;
if (generator.Options.EnableDocComments)
{
DocCommentGenerator.GenerateComment(generator, classSymbol);
}
foreach (var property in GetNonReadonlyAutoProperties(classSymbol))
{
writer.Write(DSharpStringResources.ScriptExportMember("defineProperty"));
writer.Write($"(this, '{property.GeneratedName}', ");
var initialValueExpression = Compiler.ImplementationBuilder.GetDefaultValueExpression(property.AssociatedType, property.SymbolSet);
ExpressionGenerator.GenerateLiteralExpression(generator, property, initialValueExpression);
writer.Write(");");
writer.WriteLine();
}
foreach (MemberSymbol memberSymbol in classSymbol.Members)
{
if (memberSymbol.Type == SymbolType.Field &&
(memberSymbol.Visibility & MemberVisibility.Static) == 0)
{
FieldSymbol fieldSymbol = (FieldSymbol)memberSymbol;
if (fieldSymbol.HasInitializer)
{
writer.Write("this.");
writer.Write(fieldSymbol.GeneratedName);
writer.Write(" = ");
CodeGenerator.GenerateScript(generator, fieldSymbol);
writer.Write(";");
writer.WriteLine();
}
}
}
if (ctorSymbol != null)
{
CodeGenerator.GenerateScript(generator, ctorSymbol);
}
else if (classSymbol.BaseClass is ClassSymbol baseClass)
{
ExpressionGenerator.WriteFullTypeName(writer, baseClass);
writer.WriteLine(".call(this);");
}
writer.Indent--;
writer.WriteLine("}");
if (HasParamsModifier(ctorSymbol))
{
writer.WriteLine($"));");
}
}