[pi] finished first take on polymorphic identifiers

SQUASHED: AUTO-COMMIT-src-client-reactive-babel-plugin-active-expression-rewriting-plugin-utils.js,AUTO-COMMIT-src-client-reactive-babel-plugin-polymorphic-identifiers-index.js,AUTO-COMMIT-src-client-reactive-babel-plugin-polymorphic-identifiers-playground.js,AUTO-COMMIT-src-client-reactive-babel-plugin-polymorphic-identifiers-plugin-explorer.workspace,AUTO-COMMIT-src-client-reactive-babel-plugin-polymorphic-identifiers-polymorphic-identifiers.js,AUTO-COMMIT-src-client-reactive-polymorphic-identifiers-polymorphic-identifiers.js,AUTO-COMMIT-src-client-reactive-test-polymorphic-identifiers-polymorphic-identifiers.spec.js,AUTO-COMMIT-src-components-tools-plugin-selector-list.json,AUTO-COMMIT-src-systemjs-config.js,

Author: onsetsu

src/client/reactive/babel-plugin-active-expression-rewriting/plugin-utils.js

@@ -0,0 +1,2 @@
+
+

src/client/reactive/babel-plugin-polymorphic-identifiers/playground.js

@@ -0,0 +1 @@
+here we go....

src/client/reactive/babel-plugin-polymorphic-identifiers/plugin-explorer.workspace

@@ -0,0 +1 @@
+{"source":"/src/client/reactive/babel-plugin-polymorphic-identifiers/playground.js","plugin":"https://lively-kernel.org/lively4/aexpr/src/client/reactive/babel-plugin-polymorphic-identifiers/polymorphic-identifiers.js","options":{"autoUpdateAST":true,"autoUpdateTransformation":false,"autoExecute":true,"systemJS":false,"autoRunTests":false,"autoSaveWorkspace":false},"pluginSelection":[{"url":"https://lively-kernel.org/lively4/aexpr/src/client/reactive/babel-plugin-polymorphic-identifiers/polymorphic-identifiers.js"}]}

src/client/reactive/babel-plugin-polymorphic-identifiers/polymorphic-identifiers.js

@@ -0,0 +1,75 @@
+
+const SHARED_FLAG_GENERATED_IMPORT_IDENTIFIER = 'SHARED_FLAG_GENERATED_IMPORT_IDENTIFIER';
+
+export default function ({ types: t, template }) {
+  return {
+    name: 'polymorphic-identifiers',
+    visitor: {
+      Program: {
+        enter(path, state) {
+          function addCustomTemplate(file, name) {
+            const declar = file.declarations[name];
+            if (declar) {
+              return declar;
+            }
+
+            const identifier = file.declarations[name] = file.addImport("polymorphic-identifiers", name, name);
+            identifier[SHARED_FLAG_GENERATED_IMPORT_IDENTIFIER] = true;
+            return identifier;
+          }
+
+          function hasDirective(path, name) {
+            let foundDirective = false;
+            path.traverse({
+              Directive(path) {
+                if (path.get("value").node.value === name) {
+                  foundDirective = true;
+                }
+              }
+            });
+            return foundDirective;
+          }
+
+          debugger
+          const shouldTransform = state.opts.executedIn === 'workspace' || hasDirective(path, "pi");
+          if (!shouldTransform) {
+            return;
+          }
+
+          path.traverse({
+            TaggedTemplateExpression(path) {
+              if (path.node.visitedByPI) {
+                return;
+              }
+              path.node.visitedByPI = true;
+
+              const tagTemplate = template(`MAKE_REF(TAG_NODE, {
+                thisReference: this,
+                evalFunction: str => eval(str)
+              })`);
+              const tagPath = path.get('tag');
+              tagPath.replaceWith(tagTemplate({
+                MAKE_REF: addCustomTemplate(state.file, 'makeRef'),
+                TAG_NODE: tagPath.node
+              }));
+              
+              path.replaceWith(t.memberExpression(path.node, t.identifier('access')));
+              
+              const parentPath = path.parentPath;
+              if (parentPath.isBinaryExpression() && path.parentKey === 'left' && parentPath.node.operator === "<<") {
+                parentPath.replaceWith(parentPath.node.right);
+                
+                // find something we can embed an assignment expression in
+                const preStatementAncestor = parentPath.find(p => {
+                  const parent = p.parentPath;
+                  return parent && (parent.isStatement() || (parent.isArrowFunctionExpression() && p.parentKey === "body"))
+                });
+                preStatementAncestor.replaceWith(t.assignmentExpression('=', path.node, preStatementAncestor.node));
+              }
+            }
+          });
+        }
+      }
+    }
+  };
+}

src/client/reactive/polymorphic-identifiers/polymorphic-identifiers.js

@@ -1,5 +1,4 @@
 
-
 export class PIReference {
   static get isPIReference() { return true; }
 
@@ -8,7 +7,8 @@ export class PIReference {
   }
 
   create(strings, ...expressions) {
-    // debugger
+    this.strings = strings;
+    this.expressions = expressions;
   }
 
   get access() {

src/client/reactive/test/polymorphic-identifiers/polymorphic-identifiers.spec.js

@@ -117,16 +117,19 @@ describe("PI", function() {
     })``.access).to.equal('bar')
   });
 
-//   it("inserts default constructors", () => {
-//     class A {
-//       constructor() {
-//         this.prop = 42;
-//       }
-//     }
-//     class B extends A {}
+});
+describe("AEs", function() {
+  
+  it("AExprs insert default constructors", () => {
+    class A {
+      constructor(prop) {
+        this.prop = prop;
+      }
+    }
+    class B extends A {}
 
-//     const b = new B();
-//     expect(b.prop).to.equal(42);
-//   });
+    const b = new B(42);
+    expect(b.prop).to.equal(42);
+  });
 
 });

src/components/tools/plugin-selector-list.json

@@ -1 +1 @@
-["https://lively-kernel.org/lively4/lively4-tom/demos/tom/babel-plugin-tracer.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/defect-demo-plugin.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/enumerationPlugin.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/playground.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/plugin-backup.js","https://lively-kernel.org/lively4/lively4-tom/src/client/reactive/babel-plugin-active-expression-rewriting/index.js","https://lively-kernel.org/lively4/lively4-tom/src/external/babel-plugin-locals.js","https://lively-kernel.org/lively4/lively4-tom/src/external/babel-plugin-var-recorder-dev.js"]
+["https://lively-kernel.org/lively4/aexpr/src/client/reactive/babel-plugin-polymorphic-identifiers/index.js","https://lively-kernel.org/lively4/aexpr/src/client/reactive/babel-plugin-polymorphic-identifiers/polymorphic-identifiers.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/babel-plugin-tracer.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/defect-demo-plugin.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/enumerationPlugin.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/playground.js","https://lively-kernel.org/lively4/lively4-tom/demos/tom/plugin-backup.js","https://lively-kernel.org/lively4/lively4-tom/src/client/reactive/babel-plugin-active-expression-rewriting/index.js","https://lively-kernel.org/lively4/lively4-tom/src/external/babel-plugin-locals.js","https://lively-kernel.org/lively4/lively4-tom/src/external/babel-plugin-var-recorder-dev.js"]

src/systemjs-config.js

@@ -90,6 +90,10 @@ SystemJS.config({
     'babel-plugin-var-recorder-dev': lively4url + '/src/external/babel-plugin-var-recorder-dev.js',
     'workspace-loader': lively4url + '/src/client/workspace-loader.js',
 
+    // support for polymorphic identifiers
+    'babel-plugin-polymorphic-identifiers': lively4url + '/src/client/reactive/babel-plugin-polymorphic-identifiers/polymorphic-identifiers.js',
+    'polymorphic-identifiers': lively4url + '/src/client/reactive/polymorphic-identifiers/polymorphic-identifiers.js',
+
     // utils
     'lang': lively4url + '/src/client/lang/lang.js',
     'lang-ext': lively4url + '/src/client/lang/lang-ext.js',
@@ -136,6 +140,7 @@ const aexprViaDirective = {
     stage2: false,
     stage3: false,
     plugins: [
+      'babel-plugin-polymorphic-identifiers',
       ['babel-plugin-rp19-jsx', {
         executedIn: 'file'
       }],
@@ -215,6 +220,9 @@ SystemJS.config({
         stage3: false,
         plugins: [
           // lively4url + '/demos/swe/debugging-plugin.js',
+          ['babel-plugin-polymorphic-identifiers', {
+            executedIn: 'workspace'
+          }],
           ['babel-plugin-rp19-jsx', {
             executedIn: 'workspace'
           }],
@@ -247,6 +255,9 @@ SystemJS.config({
         stage2: false,
         stage3: false,
         plugins: [
+          ['babel-plugin-polymorphic-identifiers', {
+            executedIn: 'workspace'
+          }],
           ['babel-plugin-rp19-jsx', {
             executedIn: 'workspace'
           }],
@@ -270,6 +281,9 @@ SystemJS.config({
         stage2: false,
         stage3: false,
         plugins: [
+          ['babel-plugin-polymorphic-identifiers', {
+            executedIn: 'workspace'
+          }],
           ['babel-plugin-rp19-jsx', {
             executedIn: 'workspace'
           }],