public override void ExitModule(HorseshoeParser.ModuleContext context)
{
PopIndent();
m_writer.WriteLine("}");
m_symbols.PopScope();
m_inModule = false;
}
public override void EnterModule(HorseshoeParser.ModuleContext context)
{
m_writer.WriteLine("module {0} {{", context.name.GetText());
PushIndent();
m_symbols.PushScope(context);
m_inModule = true;
}
public override void EnterTemplateDecl(HorseshoeParser.TemplateDeclContext context)
{
if (m_inModule)
m_writer.Write("export ");
if (context.name == null)
throw new Exception("No name specified for template.");
m_writer.WriteLine("module {0} {{", context.name.GetText());
PushIndent();
if (context.contextTypeName == null)
{
m_writer.WriteLine("export function render() : string {");
m_hasDataContext = false;
}
else
{
m_writer.WriteLine("export function render({0} : {1}) : string {{", VAR_DataContext, context.contextTypeName.GetText());
m_hasDataContext = true;
}
PushIndent();
m_writer.WriteLine("var {0} : string = '';", VAR_TemplateResult);
m_symbols.PushScope(context);
m_invertTrim = context.invertTrim != null;
m_trimLeadingWhitespaceFromBody = context.openTrimEnd != null;
}
public static string Compile(string input, BaseErrorListener errorListener)
{
AntlrInputStream stream = new AntlrInputStream(input);
HorseshoeLexer lexer = new HorseshoeLexer(stream);
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
HorseshoeParser parser = new HorseshoeParser(tokenStream);
if (errorListener != null)
{
parser.RemoveErrorListeners();
parser.AddErrorListener(errorListener);
}
var context = parser.document();
HorseshoeTranslationListener listener = new HorseshoeTranslationListener();
ParseTreeWalker walker = new ParseTreeWalker();
walker.Walk(listener, context);
return listener.Result;
}
public static string Compile(string input, BaseErrorListener errorListener)
{
AntlrInputStream stream = new AntlrInputStream(input);
HorseshoeLexer lexer = new HorseshoeLexer(stream);
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
HorseshoeParser parser = new HorseshoeParser(tokenStream);
if (errorListener != null)
{
parser.RemoveErrorListeners();
parser.AddErrorListener(errorListener);
}
var context = parser.document();
HorseshoeTranslationListener listener = new HorseshoeTranslationListener();
ParseTreeWalker walker = new ParseTreeWalker();
walker.Walk(listener, context);
return(listener.Result);
}
public override void ExitConditional(HorseshoeParser.ConditionalContext context)
{
FlushBuffer(context.closeTrimStart != null);
PopIndent();
m_writer.WriteLine("}");
m_symbols.PopScope();
m_trimLeadingWhitespaceFromBody = context.closeTrimEnd != null;
}
public override void ExitTemplateDecl(HorseshoeParser.TemplateDeclContext context)
{
FlushBuffer(context.closeTrimStart != null);
m_writer.WriteLine("return {0};", VAR_TemplateResult);
PopIndent();
m_writer.WriteLine("}");
PopIndent();
m_writer.WriteLine("}");
m_symbols.PopScope();
}
public override void EnterBody(HorseshoeParser.BodyContext context)
{
string text = context.GetText();
if (m_trimLeadingWhitespaceFromBody ^ m_invertTrim)
{
if (String.IsNullOrWhiteSpace(text))
text = String.Empty;
text = text.TrimStart();
}
m_trimLeadingWhitespaceFromBody = false;
m_buffer.Append(text);
}
public override void ExitSubstitution(HorseshoeParser.SubstitutionContext context)
{
m_trimLeadingWhitespaceFromBody = (context.trimEnd != null) ^ m_invertTrim;
}
public override void EnterSubstitution(HorseshoeParser.SubstitutionContext context)
{
if (!m_hasDataContext)
throw new Exception("Substitutions cannot be used without a data context.");
FlushBuffer((context.trimStart != null) ^ m_invertTrim);
string variableName = GetVariableName(context.id);
m_writer.WriteLine("{0} += _.escape(String({1}));", VAR_TemplateResult, variableName);
}
public override void EnterInvoke(HorseshoeParser.InvokeContext context)
{
FlushBuffer(context.trimStart != null);
m_writer.WriteLine("{0} += {1}({2});", VAR_TemplateResult, context.method.GetText(), GetVariableName(context.argument));
m_trimLeadingWhitespaceFromBody = context.trimEnd != null;
}
public override void EnterUnescapedSubstitution(HorseshoeParser.UnescapedSubstitutionContext context)
{
FlushBuffer(context.trimStart != null);
string variableName = GetVariableName(context.id);
m_writer.WriteLine("{0} += {1};", VAR_TemplateResult, variableName);
}
public override void EnterElseClause(HorseshoeParser.ElseClauseContext context)
{
FlushBuffer(context.trimStart != null);
PopIndent();
m_writer.WriteLine("} else {");
PushIndent();
m_trimLeadingWhitespaceFromBody = context.trimEnd != null;
}
private string GetVariableName(HorseshoeParser.ScopeQualifiedIdentifierContext context)
{
string variableName = context.id.GetText();
string scopeName = variableName;
if (scopeName != null)
{
int index = scopeName.IndexOf('.');
if (index != -1)
scopeName = scopeName.Substring(0, index);
}
if (context.scope != null || !m_symbols.CurrentScope.ContainsSymbol(scopeName))
variableName = VAR_DataContext + "." + variableName;
return variableName;
}
public override void EnterConditional(HorseshoeParser.ConditionalContext context)
{
FlushBuffer(context.openTrimStart != null);
m_writer.WriteLine("if ({0}{1}) {{", context.NOT() != null ? "!" : "", GetVariableName(context.id));
PushIndent();
m_symbols.PushScope(context);
m_trimLeadingWhitespaceFromBody = context.openTrimEnd != null;
}
public override void EnterListIteration(HorseshoeParser.ListIterationContext context)
{
FlushBuffer(context.openTrimStart != null);
m_symbols.PushScope(context);
m_symbols.AddSymbol(new Symbol(context.variable.GetText(), context.variable));
m_writer.WriteLine("_.each({0}, function ({1} : {2}) {{", GetVariableName(context.collection), context.variable.GetText(), context.type.GetText());
PushIndent();
m_trimLeadingWhitespaceFromBody = context.openTrimEnd != null;
}
public override void ExitUnescapedSubstitution(HorseshoeParser.UnescapedSubstitutionContext context)
{
m_trimLeadingWhitespaceFromBody = context.trimEnd != null;
}
