Add Path.Lookup

[StefH]

No description provided.

[codecov]

Codecov Report

Merging #70 (5e16b8c) into master (d6fe6df) will increase coverage by 0.99%.
The diff coverage is 68.13%.

❗ Current head 5e16b8c differs from pull request most recent head 2651c94. Consider uploading reports for the commit 2651c94 to get more accurate results

@@ Coverage Diff @@## master #70 +/- ##
==========================================
+ Coverage 43.98% 44.97% +0.99% 
==========================================
Files 40 43 +3 Lines 2626 2679 +53 Branches 362 367 +5 ==========================================
+ Hits 1155 1205 +50 - Misses 1372 1375 +3 
Partials 99 99 

Impacted Files	Coverage Δ
...c/Handlebars.Net.Helpers.Core/Utils/ObjectUtils.cs	0.00% <0.00%> (ø)
...ebars.Net.Helpers.DynamicLinq/JObjectExtensions.cs	57.25% <ø> (+4.62%)	⬆️
...ers.DynamicLinq/Models/DynamicPropertyWithValue.cs	80.00% <ø> (ø)
...ars.Net.Helpers/Extensions/MethodBaseExtensions.cs	25.92% <31.57%> (+12.88%)	⬆️
....Helpers.DynamicLinq/Helpers/DynamicLinqHelpers.cs	18.40% <76.19%> (+5.36%)	⬆️
src/Handlebars.Net.Helpers/HandlebarsHelpers.cs	82.07% <90.90%> (+1.17%)	⬆️
.../Handlebars.Net.Helpers/Helpers/DateTimeHelpers.cs	66.66% <100.00%> (ø)
src/Handlebars.Net.Helpers/Helpers/PathHelpers.cs	100.00% <100.00%> (ø)
...ars.Net.Helpers/PathStructure/PathResolverProxy.cs	100.00% <100.00%> (ø)
... and 1 more

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[oformaniuk]

How is this different from build-in lookup helper?

[StefH]

@zjklee
Ah. I understand. There's a builtin helper.
But that helper does not allow for 3 arguments with a defaultValue.

So a change could be like:

usingHandlebarsDotNet.PathStructure;namespaceHandlebarsDotNet.Helpers{publicsealedclassLookupReturnHelperDescriptor:IHelperDescriptor<HelperOptions>{publicPathInfoName{get;}="lookup";publicobjectInvoke(inHelperOptionsoptions,inContextcontext,inArgumentsarguments){if(arguments.Length!=2&&arguments.Length!=3){thrownewHandlebarsException("{{lookup}} helper must have two or three arguments");}varsegment=ChainSegment.Create(arguments[1]);vardefaultValueIfNotFound=arguments.Length==3?arguments[2]:UndefinedBindingResult.Create(segment);return!options.TryAccessMember(arguments[0],segment,outvarvalue)?defaultValueIfNotFound:value;}publicvoidInvoke(inEncodedTextWriteroutput,inHelperOptionsoptions,inContextcontext,inArgumentsarguments){output.Write(Invoke(options,context,arguments));}}}

[oformaniuk]

@StefH , looks good to me 🙂

[StefH]

@zjklee Shall I create a PR for Handlebars.Net ?

[StefH]

@zjklee See PR Handlebars-Net/Handlebars.Net#542