public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
textWriter.WriteLine();
context.Indentation--;
textWriter.Write(context.IndentationText);
textWriter.Write("}");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
context.Indentation++;
textWriter.Write("while (");
_condition.GenerateJavaScript(context, textWriter);
textWriter.Write(") {");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
textWriter.Write("if (");
_condition.GenerateJavaScript(context, textWriter);
textWriter.WriteLine(") {");
context.Indentation++;
textWriter.Write(context.IndentationText);
_thenExpression.GenerateJavaScript(context, textWriter);
textWriter.WriteLine();
context.Indentation--;
textWriter.Write(context.IndentationText);
if (_elseExpression != null)
{
textWriter.WriteLine("} else {");
context.Indentation++;
textWriter.Write(context.IndentationText);
_elseExpression.GenerateJavaScript(context, textWriter);
context.Indentation--;
textWriter.WriteLine();
textWriter.Write(context.IndentationText);
}
textWriter.WriteLine("}");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
if (LineTypes == LineTypes.None)
{
throw new ApplicationException("Line type not set for line " + LineNumber);
}
if ((LineTypes & LineTypes.FunctionStart) > 0)
{
textWriter.Write(context.IndentationText);
textWriter.WriteLine("function line" + LineNumber + "() {");
context.Indentation++;
}
textWriter.Write(context.IndentationText);
StatementList.GenerateJavaScript(context, textWriter);
textWriter.WriteLine();
if ((LineTypes & LineTypes.FunctionEnd) > 0)
{
if (!string.IsNullOrEmpty(ReturnText))
{
textWriter.Write(context.IndentationText);
textWriter.WriteLine(ReturnText);
}
context.Indentation--;
textWriter.Write(context.IndentationText);
textWriter.WriteLine("}");
}
}
public static void GenerateNodes(JSContext context, TextWriter textWriter, AstNodeList nodes)
{
foreach (AstNode node in nodes)
{
GenerateNode(context, textWriter, node);
}
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
context.Indentation++;
textWriter.Write("for (var ");
_assignment.GenerateJavaScript(context, textWriter);
textWriter.Write(" ");
GeneratorHelper.GenerateNode(context, textWriter, _assignment.Variable);
if (_step > 0)
{
textWriter.Write("<=");
}
else if (_step < 0)
{
textWriter.Write(">=");
}
else
{
throw new BasicSyntaxErrorException("A step amount of 0 is not allowed.");
}
_upperBound.GenerateJavaScript(context, textWriter);
textWriter.Write("; ");
GeneratorHelper.GenerateNode(context, textWriter, _assignment.Variable);
textWriter.Write(" += " + _step);
textWriter.Write(") {");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
textWriter.WriteLine("/* Generated by the JSBasic compiler at " + DateTime.Now.ToString("HH:mm:ss dd/MMM/yy", CultureInfo.CurrentCulture) + " */");
foreach (LineNode line in Lines)
{
line.GenerateJavaScript(context, textWriter);
}
}
public override void GenerateJavaScript(JSContext context, TextWriter textWriter)
{
textWriter.Write("console.setCursorPos(");
GeneratorHelper.GenerateNode(context, textWriter, TargetRow);
textWriter.Write(", ");
GeneratorHelper.GenerateNode(context, textWriter, TargetColumn);
textWriter.Write(");");
}
public static void GenerateNode(JSContext context, TextWriter textWriter, AstNode node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
if (node is IJSBasicNode)
{
IJSBasicNode jsBasicNode = (IJSBasicNode)node;
jsBasicNode.GenerateJavaScript(context, textWriter);
}
else if (node is Token)
{
Token t = (Token)node;
switch (t.Terminal.Name)
{
case "VARIABLE":
if (t.Text.EndsWith("$"))
{
textWriter.Write("s_" + t.Text.Substring(0, t.Text.Length - 1));
}
else
{
throw new BasicSyntaxErrorException("Invalid variable name: " + t.Text);
}
break;
case "BOOLEAN_OP":
{
switch (t.Text.ToLowerInvariant())
{
case "and":
textWriter.Write("&&");
break;
case "or":
textWriter.Write("||");
break;
default:
textWriter.Write(t.Text);
break;
}
}
break;
default:
textWriter.Write(ConvertToJavascript(t.Text));
break;
}
textWriter.Write(" ");
}
else
{
throw new ApplicationException("Unhandled statement type: " + node.GetType().FullName);
}
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
GeneratorHelper.GenerateNode(context, textWriter, _variable);
textWriter.Write("= console.input(");
if (_toPrint != null)
{
_toPrint.GenerateJavaScript(context, textWriter);
}
textWriter.Write(");");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
bool isFirst = true;
foreach (var expr in Expressions)
{
if (!isFirst)
{
textWriter.Write("+ ");
}
expr.GenerateJavaScript(context, textWriter);
isFirst = false;
}
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
base.GenerateJavaScript(context, textWriter);
// put semi-colons on the end of expression-statements.
if (ChildNodes.Count == 1)
{
ExpressionNode expr = ChildNodes[0] as ExpressionNode;
if (expr != null)
{
textWriter.Write(";");
}
}
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
bool isFirst = true;
foreach (var stmt in Statements)
{
if (!isFirst)
{
textWriter.WriteLine();
textWriter.Write(context.IndentationText);
}
stmt.GenerateJavaScript(context, textWriter);
isFirst = false;
}
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
if (BranchType == BranchType.Gosub)
{
textWriter.Write("line" + DestinationLine + "();");
}
else if (BranchType == BranchType.Return)
{
textWriter.Write("return;");
}
else
{
textWriter.Write("return line" + DestinationLine + ";");
}
}
public override void GenerateJavaScript(JSContext context, TextWriter textWriter)
{
textWriter.Write("tempVar = ");
GeneratorHelper.GenerateNode(context, textWriter, Variable1);
textWriter.WriteLine(";");
textWriter.Write(context.IndentationText);
GeneratorHelper.GenerateNode(context, textWriter, Variable1);
textWriter.Write(" = ");
GeneratorHelper.GenerateNode(context, textWriter, Variable2);
textWriter.WriteLine(";");
textWriter.Write(context.IndentationText);
GeneratorHelper.GenerateNode(context, textWriter, Variable2);
textWriter.WriteLine(" = tempVar;");
textWriter.Write(context.IndentationText);
textWriter.Write("tempVar = null;");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
string op;
switch (_operator.Text)
{
case "=":
op = "==";
break;
case "<>":
op = "!=";
break;
case "and":
op = "&&";
break;
case "or":
op = "||";
break;
default:
op = _operator.Text;
break;
}
textWriter.Write(op);
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
switch (FunctionName.Text.ToLowerInvariant()) {
case "len":
Write(context, textWriter, InputParameter1, ".length");
break;
case "left$":
Write(context, textWriter, InputParameter1, ".substring(0, ", InputParameter2, ")");
break;
case "right$":
Write(context, textWriter, InputParameter1, ".substring(", InputParameter1, ".length - ", InputParameter2, ")");
break;
case "mid$":
if (InputParameter3 == null)
{
Write(context, textWriter, InputParameter1, ".substring(", InputParameter2, "-1)");
}
else
{
Write(context, textWriter, InputParameter1, ".substring(", InputParameter2, "-1,", InputParameter2, "-1+",InputParameter3, ")");
}
break;
case "abs":
Write(context, textWriter, "Math.abs(", InputParameter1, ")");
break;
case "asc":
Write(context, textWriter, InputParameter1, ".charCodeAt(0)");
break;
case "chr$":
Write(context, textWriter, "String.fromCharCode(", InputParameter1, ")");
break;
case "cint":
Write(context, textWriter, "Math.round(", InputParameter1, ")");
break;
case "cvi":
Write(context, textWriter, "parseInt(", InputParameter1, ")");
break;
case "cvs":
case "cvd":
Write(context, textWriter, "parseFloat(", InputParameter1, ")");
break;
case "exp":
Write(context, textWriter, "Math.exp(", InputParameter1, ")");
break;
case "fix":
Write(context, textWriter, "Math.floor(", InputParameter1, ")");
break;
case "pos":
Write(context, textWriter, "console.cursorPosition.column");
break;
case "sgn":
Write(context, textWriter, "(", InputParameter1 + " == 0 ? 0 : (", InputParameter1 , " > 0 ? 1 : -1))");
break;
case "sin":
Write(context, textWriter, "Math.sin(", InputParameter1, ")");
break;
case "cos":
Write(context, textWriter, "Math.cos(", InputParameter1, ")");
break;
case "tan":
Write(context, textWriter, "Math.tan(", InputParameter1, ")");
break;
case "spc":
case "space$":
Write(context, textWriter, "getSpaces(", InputParameter1, ")");
break;
case "instr":
if (InputParameter3 == null)
{
Write(context, textWriter, "(" + InputParameter1, ".indexOf(", InputParameter2, ")+1)");
}
else
{
Write(context, textWriter, "(" + InputParameter2, ".indexOf(", InputParameter3, "," + InputParameter1 + ")+1)");
}
break;
case "log":
Write(context, textWriter, "Math.log(", InputParameter1, ")");
break;
case "sqr":
Write(context, textWriter, "Math.sqrt(", InputParameter1, ")");
break;
case "str$":
Write(context, textWriter, "('' + ", InputParameter1, ")");
break;
case "string$":
Write(context, textWriter, "generateString(", InputParameter1, ",", InputParameter2, ")");
break;
case "val":
Write(context, textWriter, "parseInt(", InputParameter1, ")");
break;
default:
throw new BasicSyntaxErrorException("Unknown global function " + FunctionName.Text);
}
}
private static void Write(JSContext context, TextWriter textWriter, params object[] values)
{
foreach (object val in values)
{
if (val is AstNode)
{
textWriter.Write("(");
GeneratorHelper.GenerateNode(context, textWriter, (AstNode)val);
textWriter.Write(")");
}
else
{
textWriter.Write(val);
}
}
}
public virtual void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
GeneratorHelper.GenerateNodes(context, textWriter, ChildNodes);
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
GeneratorHelper.GenerateNodes(context, textWriter, ChildNodes);
textWriter.Write(";");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
textWriter.Write("// " + _comment);
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
textWriter.Write("console.println(");
_exprList.GenerateJavaScript(context, textWriter);
textWriter.Write(");");
}
public override void GenerateJavaScript(JSContext context, System.IO.TextWriter textWriter)
{
textWriter.Write("// " + _comment);
}
