public void TryCatchWhenTest() { var expected = new InvalidOperationException("aaa"); _mock.MethodWithReturn().Throws(expected); _mock.Condition.Returns(true); var parameter = ExpressionShortcuts.Parameter <IMock>(); var action = ExpressionShortcuts.Block() .Parameter(parameter) .Line(parameter.Assign(_mock)) .Line(ExpressionShortcuts.Try() .Body(parameter.Call(o => o.MethodWithReturn())) .Catch <InvalidOperationException>( e => ExpressionShortcuts.Null <string>(), e => e.Call(o => !parameter.Property(x => x.Condition) || o.Message == null) ) ) .Lambda <Func <string> >() .Compile(); var actual = Assert.Throws <InvalidOperationException>(() => action()); Assert.Equal(expected, actual); _mock.Received(1).MethodWithReturn(); _ = _mock.Received(1).Condition; }
protected override Expression VisitIteratorExpression(IteratorExpression iex) { var context = ExpressionShortcuts.Arg <BindingContext>(CompilationContext.BindingContext); var sequence = ExpressionShortcuts.Var <object>("sequence"); var template = FunctionBuilder.CompileCore(new[] { iex.Template }, CompilationContext.Configuration); var ifEmpty = FunctionBuilder.CompileCore(new[] { iex.IfEmpty }, CompilationContext.Configuration); var compiledSequence = ExpressionShortcuts.Arg <object>(FunctionBuilder.Reduce(iex.Sequence, CompilationContext)); var blockParams = ExpressionShortcuts.Arg <BlockParam>(iex.BlockParams); var blockParamsProvider = ExpressionShortcuts.Call(() => BlockParamsValueProvider.Create(context, blockParams)); var blockParamsProviderVar = ExpressionShortcuts.Var <BlockParamsValueProvider>(); return(ExpressionShortcuts.Block() .Parameter(sequence, compiledSequence) .Parameter(blockParamsProviderVar, blockParamsProvider) .Line(blockParamsProviderVar.Using((self, builder) => { builder .Line(context.Call(o => o.RegisterValueProvider((IValueProvider)self))) .Line(ExpressionShortcuts.Try() .Body(ExpressionShortcuts.Call(() => Iterator.Iterate(context, self, sequence, template, ifEmpty) )) .Finally(context.Call(o => o.UnregisterValueProvider((IValueProvider)self))) ); }))); }
public static Expression <Action <BindingContext, TextWriter, object> > Bind(CompilationContext context, Expression body, string templatePath) { var configuration = ExpressionShortcuts.Arg(context.Configuration); var writerParameter = ExpressionShortcuts.Parameter <TextWriter>("buffer"); var objectParameter = ExpressionShortcuts.Parameter <object>("data"); var bindingContext = ExpressionShortcuts.Arg <BindingContext>(context.BindingContext); var inlinePartialsParameter = ExpressionShortcuts.Null <IDictionary <string, Action <TextWriter, object> > >(); var textEncoder = configuration.Property(o => o.TextEncoder); var encodedWriterExpression = ExpressionShortcuts.Call(() => EncodedTextWriter.From(writerParameter, (ITextEncoder)textEncoder)); var parentContextArg = ExpressionShortcuts.Var <BindingContext>("parentContext"); var newBindingContext = ExpressionShortcuts.Call( () => BindingContext.Create(configuration, objectParameter, encodedWriterExpression, parentContextArg, templatePath, (IDictionary <string, Action <TextWriter, object> >)inlinePartialsParameter) ); var shouldDispose = ExpressionShortcuts.Var <bool>("shouldDispose"); Expression blockBuilder = ExpressionShortcuts.Block() .Parameter(bindingContext) .Parameter(shouldDispose) .Line(ExpressionShortcuts.Condition() .If(objectParameter.Is <BindingContext>(), bindingContext.Assign(objectParameter.As <BindingContext>()) ) .Else(block => { block.Line(shouldDispose.Assign(true)); block.Line(bindingContext.Assign(newBindingContext)); }) ) .Line(ExpressionShortcuts.Try() .Body(block => block.Lines(((BlockExpression)body).Expressions)) .Finally(ExpressionShortcuts.Condition() .If(shouldDispose, bindingContext.Call(o => o.Dispose())) ) ); return(Expression.Lambda <Action <BindingContext, TextWriter, object> >(blockBuilder, (ParameterExpression)parentContextArg.Expression, (ParameterExpression)writerParameter.Expression, (ParameterExpression)objectParameter.Expression)); }
protected override Expression VisitBlockHelperExpression(BlockHelperExpression bhex) { var isInlinePartial = bhex.HelperName == "#*inline"; var context = ExpressionShortcuts.Arg <BindingContext>(CompilationContext.BindingContext); var bindingContext = isInlinePartial ? context.Cast <object>() : context.Property(o => o.Value); var readerContext = ExpressionShortcuts.Arg(bhex.Context); var body = FunctionBuilder.CompileCore(((BlockExpression)bhex.Body).Expressions, CompilationContext.Configuration); var inverse = FunctionBuilder.CompileCore(((BlockExpression)bhex.Inversion).Expressions, CompilationContext.Configuration); var helperName = bhex.HelperName.TrimStart('#', '^'); var textWriter = context.Property(o => o.TextWriter); var arguments = ExpressionShortcuts.Array <object>(bhex.Arguments.Select(o => FunctionBuilder.Reduce(o, CompilationContext))); var configuration = ExpressionShortcuts.Arg(CompilationContext.Configuration); var reducerNew = ExpressionShortcuts.New(() => new LambdaReducer(context, body, inverse)); var reducer = ExpressionShortcuts.Var <LambdaReducer>(); var blockParamsProvider = ExpressionShortcuts.Var <BlockParamsValueProvider>(); var blockParamsExpression = ExpressionShortcuts.Call( () => BlockParamsValueProvider.Create(context, ExpressionShortcuts.Arg <BlockParam>(bhex.BlockParams)) ); var helperOptions = ExpressionShortcuts.New( () => new HelperOptions( reducer.Property(o => o.Direct), reducer.Property(o => o.Inverse), blockParamsProvider, configuration) ); var blockHelpers = CompilationContext.Configuration.BlockHelpers; if (blockHelpers.TryGetValue(helperName, out var helper)) { return(ExpressionShortcuts.Block() .Parameter(reducer, reducerNew) .Parameter(blockParamsProvider, blockParamsExpression) .Line(blockParamsProvider.Using((self, builder) => { builder .Line(context.Call(o => o.RegisterValueProvider((IValueProvider)self))) .Line(ExpressionShortcuts.Try() .Body(ExpressionShortcuts.Call( () => helper(textWriter, helperOptions, bindingContext, arguments) )) .Finally(context.Call(o => o.UnregisterValueProvider((IValueProvider)self))) ); }))); } foreach (var resolver in CompilationContext.Configuration.HelperResolvers) { if (resolver.TryResolveBlockHelper(helperName, out helper)) { return(ExpressionShortcuts.Block() .Parameter(reducer, reducerNew) .Parameter(blockParamsProvider, blockParamsExpression) .Line(blockParamsProvider.Using((self, builder) => { builder .Line(context.Call(o => o.RegisterValueProvider((IValueProvider)self))) .Line(ExpressionShortcuts.Try() .Body(ExpressionShortcuts.Call( () => helper(textWriter, helperOptions, bindingContext, arguments) )) .Finally(context.Call(o => o.UnregisterValueProvider((IValueProvider)self))) ); }))); } } var helperPrefix = bhex.HelperName[0]; return(ExpressionShortcuts.Block() .Parameter(reducer, reducerNew) .Parameter(blockParamsProvider, blockParamsExpression) .Line(blockParamsProvider.Using((self, builder) => { builder .Line(context.Call(o => o.RegisterValueProvider((IValueProvider)self))) .Line(ExpressionShortcuts.Try() .Body(ExpressionShortcuts.Call( () => LateBoundCall( helperName, helperPrefix, context, (IReaderContext)readerContext, textWriter, helperOptions, body, inverse, bindingContext, self, arguments ) )) .Finally(context.Call(o => o.UnregisterValueProvider((IValueProvider)self))) ); }))); }