SDNA/Prolog bugs uncovered by Perspect3vism fixed

CHANGELOG

@@ -7,6 +7,7 @@ This project _loosely_ adheres to [Semantic Versioning](https://semver.org/spec/
 
 ### Added
  - bootstrap languages to mono repo [PR#328](https://github.com/perspect3vism/ad4m/pull/328)
+- Support for new UI oriented Subject class predicates (property_named_option, p3_class_icon, etc). [PR#353](https://github.com/perspect3vism/ad4m/pull/353)
 
 ### Changed
 
@@ -15,7 +16,7 @@ This project _loosely_ adheres to [Semantic Versioning](https://semver.org/spec/
 ### Removed
 
 ### Fixed
-
+ - Expression -> get would fail when executed on a Literal expression. [PR#353](https://github.com/perspect3vism/ad4m/pull/353)
 ## [0.3.4] - 27/03/2023
 
 ### Added

executor/src/core/LanguageController.ts

@@ -1007,6 +1007,14 @@ export default class LanguageController {
         try {
             if(ref.language.address == "literal" || ref.language.name == 'literal') {
                 expr = Literal.fromUrl(`literal://${ref.expression}`).get()
+                if(! (typeof expr === 'object')) {
+                    expr = {
+                        author: '<unknown>',
+                        timestamp: '<unknown>',
+                        data: expr,
+                        proof: {}
+                    }
+                }
             } else {
                 const lang = this.languageForExpression(ref);
                 if (!lang.expressionAdapter) {

executor/src/core/Perspective.ts

@@ -868,17 +868,29 @@ export default class Perspective {
         lines.push(":- dynamic property/2.")
         lines.push(":- dynamic property_getter/4.")
         lines.push(":- dynamic property_setter/3.")
+        lines.push(":- dynamic property_resolve/2.")
+        lines.push(":- dynamic property_resolve_language/3.")
+        lines.push(":- dynamic property_named_option/4.")
         lines.push(":- dynamic collection_getter/4.")
         lines.push(":- dynamic collection_setter/3.")
+        lines.push(":- dynamic p3_class_icon/2.")
+        lines.push(":- dynamic p3_class_color/2.")
+        lines.push(":- dynamic p3_instance_color/3.")
 
         lines.push(":- discontiguous subject_class/2.")
         lines.push(":- discontiguous constructor/2.")
         lines.push(":- discontiguous instance/2.")
         lines.push(":- discontiguous property/2.")
         lines.push(":- discontiguous property_getter/4.")
         lines.push(":- discontiguous property_setter/3.")
+        lines.push(":- discontiguous property_resolve/2.")
+        lines.push(":- discontiguous property_resolve_language/3.")
+        lines.push(":- discontiguous property_named_option/4.")
         lines.push(":- discontiguous collection_getter/4.")
         lines.push(":- discontiguous collection_setter/3.")
+        lines.push(":- discontiguous p3_class_icon/2.")
+        lines.push(":- discontiguous p3_class_color/2.")
+        lines.push(":- discontiguous p3_instance_color/3.")
 
         for(let linkExpression of allLinks) {
             let link = linkExpression.data

executor/src/core/graphQL-interface/GraphQL.ts

@@ -947,6 +947,11 @@ function createResolvers(core: PerspectivismCore, config: OuterConfig) {
             language: async (expression) => {
                 //console.log("GQL LANGUAGE", expression)
                 let lang
+
+                if(expression.ref.language.address === "literal") {
+                    return { address: "literal", name: "literal" }
+                }
+
                 try {
                     lang = await core.languageController.languageForExpression(expression.ref) as any    
                 } catch(e) {