public LiquidString Render(
RenderingVisitor renderingVisitor,
MacroBlockTag macroBlocktag,
ITemplateContext templateContext,
IList <Option <ILiquidValue> > args)
{
var macroScope = new SymbolTable();
var i = 0;
foreach (var varName in macroBlocktag.Args.Take(args.Count))
{
macroScope.DefineLocalVariable(varName, args[i]);
i++;
}
templateContext.SymbolTableStack.Push(macroScope);
String hiddenText = "";
renderingVisitor.PushTextAccumulator(str => hiddenText += str);
renderingVisitor.StartWalking(macroBlocktag.LiquidBlock);
renderingVisitor.PopTextAccumulator();
templateContext.SymbolTableStack.Pop();
return(LiquidString.Create(hiddenText));
}
private static String EvalLiquidBlock(RenderingVisitor renderingVisitor, TreeNode <IASTNode> liquidBlock)
{
String result = "";
Action <String> accumulator = str => result += str;
renderingVisitor.PushTextAccumulator(accumulator);
renderingVisitor.StartWalking(liquidBlock);
renderingVisitor.PopTextAccumulator();
return(result);
}
private string CaptureHiddenText(TreeNode <IASTNode> liquidBlock)
{
String hiddenText = "";
_renderingVisitor.PushTextAccumulator(str => hiddenText += str);
_renderingVisitor.StartWalking(liquidBlock);
_renderingVisitor.PopTextAccumulator();
return(hiddenText);
}
private LiquidString IterateBlock(
RenderingVisitor renderingVisitor,
String varname,
ITemplateContext templateContext,
List <ILiquidValue> iterable,
TreeNode <IASTNode> liquidBlock)
{
String result = "";
renderingVisitor.PushTextAccumulator(str => result += str);
foreach (var item in iterable)
{
templateContext.SymbolTableStack.Define(varname, item.ToOption());
renderingVisitor.StartWalking(liquidBlock);
}
renderingVisitor.PopTextAccumulator();
return(LiquidString.Create(result));
}
public void It_Should_Render_An_Error_When_Include_Contains_Parsing_Errors()
{
// Arrange
var ctx = CreateContext(new Dictionary <String, String>
{
{ "test", "problem: {% unterminated" }
}).WithAllFilters();
const String template = "{% include 'test' %}";
// Act
var ast = new LiquidASTGenerator().Generate(template);
var renderingVisitor = new RenderingVisitor(ctx);
String result = "";
renderingVisitor.StartWalking(ast.LiquidAST.RootNode, x => result += x);
//Console.WriteLine("RESULT: " + result);
Assert.Contains("missing TAGEND", result);
}
private static string Render(ITemplateContext templateContext, LiquidAST liquidAst, Action <LiquidError> onError = null)
{
if (onError == null)
{
onError = error => { };
}
String result = "";
var renderingVisitor = new RenderingVisitor(templateContext);
renderingVisitor.StartWalking(liquidAst.RootNode, str => result += str);
if (renderingVisitor.HasErrors)
{
foreach (var error in renderingVisitor.RenderingErrors)
{
onError(error);
}
//throw new LiquidRendererException(renderingVisitor.RenderingErrors);
}
return(result);
}
public void It_Should_Accumulate_Errors_When_Include_Contains_Rendering_Errors()
{
// Arrange
var ctx = CreateContext(new Dictionary <String, String>
{
{ "test", "problem: {{ 1 | divided_by: 0 }}" }
}).WithAllFilters();
//var defaultAstGenerator = ctx.ASTGenerator;
//ctx.WithASTGenerator(str => { called = true; return defaultAstGenerator(str); });
const String template = "{% include 'test' %}";
// Act
var ast = new LiquidASTGenerator().Generate(template);
var renderingVisitor = new RenderingVisitor(ctx);
String result = "";
renderingVisitor.StartWalking(ast.LiquidAST.RootNode, x => result += x);
//Console.WriteLine(result);
Assert.True(renderingVisitor.HasErrors);
}
public void It_Should_Accumulate_Errors_When_Include_Contains_Parsing_Errors()
{
// Arrange
var ctx = CreateContext(new Dictionary <String, String>
{
{ "test", "problem: {% unterminated" }
}).WithAllFilters();
const String template = "{% include 'test' %}";
// Act
var liquidParsingResult = new LiquidASTGenerator().Generate(template);
Assert.False(liquidParsingResult.HasParsingErrors);
var renderingVisitor = new RenderingVisitor(ctx);
String result = "";
renderingVisitor.StartWalking(liquidParsingResult.LiquidAST.RootNode, x => result += x);
//Console.WriteLine(result);
Assert.True(renderingVisitor.HasErrors);
}
public StringValue Render(
RenderingVisitor renderingVisitor,
MacroBlockTag macroBlocktag,
ITemplateContext templateContext,
IList<Option<IExpressionConstant>> args)
{
var macroScope = new SymbolTable();
var i = 0;
foreach (var varName in macroBlocktag.Args.Take(args.Count))
{
macroScope.DefineLocalVariable(varName, args[i].HasValue? args[i].Value : null);
i++;
}
templateContext.SymbolTableStack.Push(macroScope);
//String result = "";
//var subRenderer = new RenderingVisitor(evaluator, templateContext, str => result += str);
//evaluator.StartVisiting(subRenderer, macroBlocktag.LiquidBlock);
String hiddenText = "";
renderingVisitor.PushTextAccumulator(str => hiddenText += str);
renderingVisitor.StartWalking(macroBlocktag.LiquidBlock);
renderingVisitor.PopTextAccumulator();
templateContext.SymbolTableStack.Pop();
// foreach (var error in subRenderer.Errors)
// {
// errorAccumulator.Add(error);
// }
return new StringValue(hiddenText);
}
public void Render(TableRowBlockTag tableRowBlockTag, ITemplateContext templateContext, Action <String> appender)
{
var offset = LiquidNumeric.Create(0);
var limit = LiquidNumeric.Create(50);
var cols = LiquidNumeric.Create(5); // TODO: What is the default? https://github.com/Shopify/liquid/blob/master/lib/liquid/tags/table_row.rb
if (tableRowBlockTag.Offset != null)
{
var result = LiquidExpressionEvaluator.Eval(tableRowBlockTag.Offset, templateContext);
if (result.IsSuccess)
{
offset = result.SuccessValue <LiquidNumeric>();
}
}
if (tableRowBlockTag.Limit != null)
{
var result = LiquidExpressionEvaluator.Eval(tableRowBlockTag.Limit, templateContext);
if (result.IsSuccess)
{
limit = result.SuccessValue <LiquidNumeric>();
}
}
if (tableRowBlockTag.Cols != null)
{
var result = LiquidExpressionEvaluator.Eval(tableRowBlockTag.Cols, templateContext);
if (result.IsSuccess)
{
cols = result.SuccessValue <LiquidNumeric>();
}
}
var localBlockScope = new SymbolTable();
templateContext.SymbolTableStack.Push(localBlockScope);
try
{
var iterableFactory = tableRowBlockTag.IterableCreator;
// TODO: the Eval may result in an LiquidCollection with no Array
// (i.e. it's undefined). THe ToList therefore fails....
// this should use Bind
var iterable = iterableFactory.Eval(templateContext).ToList();
int length = iterable.Skip(offset.IntValue).Take(limit.IntValue).Count();
if (length == 0)
{
appender(" <tr class=\"row1\">\r\n</tr>"); // this is what ruby liquid does.
return;
}
int currentrow = 0;
int currentcol = 0;
bool needsEndOfRow = false;
int iter = 0;
foreach (var item in iterable.Skip(offset.IntValue).Take(limit.IntValue))
{
templateContext.DefineLocalVariable(tableRowBlockTag.LocalVariable, Option <ILiquidValue> .Create(item));
String typename = item == null ? "null" : item.LiquidTypeName;
templateContext.DefineLocalVariable("tablerowloop", CreateForLoopDescriptor(
tableRowBlockTag.LocalVariable + "-" + typename,
// ReSharper disable RedundantArgumentName
iter: iter,
length: length,
col: currentcol,
maxcol: cols.IntValue,
row: currentrow,
stack: templateContext.SymbolTableStack));
// ReSharper restore RedundantArgumentName
int rowFromOne = currentrow + 1;
int colFromOne = currentcol + 1;
if (currentcol == 0)
{
needsEndOfRow = true;
appender(@"<tr class=""row" + rowFromOne + "\">");
if (currentrow == 0) // ruby liquid prints end-of-line on first row.
{
appender("\r\n");
}
}
appender("<td class=\"col" + colFromOne + @""">");
_renderingVisitor.StartWalking(tableRowBlockTag.LiquidBlock);
appender(@"</td>");
currentcol++;
if (currentcol >= cols.IntValue)
{
needsEndOfRow = false;
appender("</tr>\r\n");
currentcol = 0;
currentrow++;
}
iter++;
}
if (needsEndOfRow)
{
appender("</tr>\r\n");
}
//IterateBlock(forBlockTag, symbolTableStack, iterable);
}
finally
{
templateContext.SymbolTableStack.Pop();
}
}
private StringValue IterateBlock(
RenderingVisitor renderingVisitor,
String varname,
ITemplateContext templateContext,
List<IExpressionConstant> iterable,
TreeNode<IASTNode> liquidBlock)
{
String result = "";
renderingVisitor.PushTextAccumulator(str => result += str);
foreach (var item in iterable)
{
templateContext.SymbolTableStack.Define(varname, item);
renderingVisitor.StartWalking(liquidBlock);
}
renderingVisitor.PopTextAccumulator();
return new StringValue(result);
}
private static String EvalLiquidBlock(RenderingVisitor renderingVisitor, TreeNode<IASTNode> liquidBlock)
{
String result = "";
Action<String> accumulator = str => result += str;
renderingVisitor.PushTextAccumulator(accumulator);
renderingVisitor.StartWalking(liquidBlock);
renderingVisitor.PopTextAccumulator();
return result;
}
private static string Render(ITemplateContext templateContext, LiquidAST liquidAst)
{
String result = "";
var renderingVisitor = new RenderingVisitor(templateContext);
renderingVisitor.StartWalking(liquidAst.RootNode, str => result += str);
if (renderingVisitor.HasErrors)
{
throw new LiquidRendererException(renderingVisitor.Errors);
}
return result;
}
private void IterateBlock(ForBlockTag forBlockTag, ITemplateContext templateContext, List <ILiquidValue> iterable)
{
var offset = LiquidNumeric.Create(0);
LiquidNumeric limit = null;
if (!templateContext.Options.NoForLimit)
{
limit = LiquidNumeric.Create(50); // see: https://docs.shopify.com/themes/liquid-documentation/tags/iteration-tags#for
}
if (forBlockTag.Offset != null)
{
var result = LiquidExpressionEvaluator.Eval(forBlockTag.Offset, templateContext);
if (result.IsSuccess)
{
offset = result.SuccessValue <LiquidNumeric>();
}
}
if (forBlockTag.Limit != null)
{
var result = LiquidExpressionEvaluator.Eval(forBlockTag.Limit, templateContext);
if (result.IsSuccess)
{
limit = result.SuccessValue <LiquidNumeric>();
}
}
var subset = iterable.Skip(offset.IntValue);
if (limit != null)
{
subset = subset.Take(limit.IntValue);
}
var subsetList = subset.ToList();
var length = subsetList.Count;
if (length <= 0)
{
_renderingVisitor.StartWalking(forBlockTag.ElseBlock);
return;
}
int iter = 0;
//foreach (var item in iterable.Skip(offset.IntValue).Take(limit.IntValue))
foreach (var item in subsetList)
{
String typename = item == null ? "null" : item.LiquidTypeName;
templateContext.SymbolTableStack.Define("forloop", CreateForLoopDescriptor(
forBlockTag.LocalVariable + "-" + typename, iter, length, templateContext.SymbolTableStack));
templateContext.SymbolTableStack.Define(forBlockTag.LocalVariable, Option <ILiquidValue> .Create(item));
try
{
_renderingVisitor.StartWalking(forBlockTag.LiquidBlock);
}
catch (ContinueException)
{
continue;
}
catch (BreakException)
{
break;
}
iter++;
}
}
// public static LiquidAST GenerateSnippetAst(string snippet)
// {
// return new CachingLiquidASTGenerator(new LiquidASTGenerator()).Generate(snippet);
// //return new LiquidASTGenerator().Generate(snippet);
// }
private void RenderWithLocalScope(ITemplateContext templateContext, SymbolTable localBlockScope, TreeNode <IASTNode> rootNode)
{
templateContext.SymbolTableStack.Push(localBlockScope);
_renderingVisitor.StartWalking(rootNode);
templateContext.SymbolTableStack.Pop();
}
