feat(ChangedPayload): Add "remove-ChangedPayload"

azu · azu · commit 3dd465f71c4e · 2018-01-17T19:53:53.000+09:00
diff --git a/scripts/__testfixtures__/remove-ChangedPayload/dispatch.input.js b/scripts/__testfixtures__/remove-ChangedPayload/dispatch.input.js
@@ -0,0 +1,7 @@
+import { UseCase, ChangedPayload } from "almin";
+
+export class ExampleUseCase extends UseCase {
+    execute() {
+        this.context.useCase(new ChangedPayload()).execute();
+    }
+}
diff --git a/scripts/__testfixtures__/remove-ChangedPayload/dispatch.output.js b/scripts/__testfixtures__/remove-ChangedPayload/dispatch.output.js
@@ -0,0 +1,7 @@
+import { UseCase } from "almin";
+
+export class ExampleUseCase extends UseCase {
+    execute() {
+        this.context.useCase({ type: "ChangedPayload" }).execute();
+    }
+}
diff --git a/scripts/__testfixtures__/remove-ChangedPayload/import.input.js b/scripts/__testfixtures__/remove-ChangedPayload/import.input.js
@@ -0,0 +1 @@
+import { Context, ChangedPayload } from "almin";
diff --git a/scripts/__testfixtures__/remove-ChangedPayload/import.output.js b/scripts/__testfixtures__/remove-ChangedPayload/import.output.js
@@ -0,0 +1 @@
+import { Context } from "almin";
diff --git a/scripts/__tests__/remove-ChangedPayload.test.js b/scripts/__tests__/remove-ChangedPayload.test.js
@@ -0,0 +1,17 @@
+// MIT © 2017 azu
+"use strict";
+const defineTest = require('jscodeshift/dist/testUtils').defineTest;
+const tests = [
+    'import',
+    'dispatch',
+];
+describe('remove-ChangedPayload', () => {
+    tests.forEach(test =>
+        defineTest(
+            __dirname,
+            'remove-ChangedPayload',
+            {},
+            `remove-ChangedPayload/${ test }`
+        )
+    );
+});
diff --git a/scripts/remove-ChangedPayload.js b/scripts/remove-ChangedPayload.js
@@ -0,0 +1,78 @@
+// MIT © 2017 azu
+"use strict";
+const isSourceAlmin = source => {
+    if (!source) {
+        return false;
+    }
+    return source.type === "Literal" && source.value === "almin";
+};
+const isChangedPayload = source => {
+    if (!source) {
+        return false;
+    }
+    return source.type === "Identifier" && source.name === "ChangedPayload";
+};
+/**
+ * If found { ChangedPayload }, return ImportSpecifier
+ * @param path
+ * @returns {boolean}
+ */
+const isChangedPayloadImportSpecifier = path => {
+    if (!path.node) {
+        return false;
+    }
+    if (path.node.type !== "ImportSpecifier") {
+        return false;
+    }
+    // from "almin"
+    const parent = path.parent;
+    if (!isSourceAlmin(parent.node.source)) {
+        return false;
+    }
+    // import { ChangedPayload }
+    return isChangedPayload(path.node.imported);
+};
+
+function isNewExpressionChangedPayload(path) {
+    const node = path.node;
+    if (!node || node.type !== "NewExpression") {
+        return false;
+    }
+    const expression = node;
+    console.log("expression", expression);
+    return (
+        expression &&
+        expression.type === "NewExpression" &&
+        expression.callee &&
+        expression.callee.type === "Identifier" &&
+        expression.callee.name === "ChangedPayload"
+    );
+}
+
+module.exports = function transformer(file, api) {
+    const j = api.jscodeshift;
+    // Remove `import { ChangedPayload } from "almin"
+    return (
+        j(
+            j(file.source)
+                .find(j.ImportSpecifier)
+                .filter(path => {
+                    return isChangedPayloadImportSpecifier(path);
+                })
+                .remove()
+                .toSource()
+        )
+            // Rewrite new ChangedPayload() => { type: "ChangedPayload" }
+            .find(j.NewExpression)
+            .filter(path => {
+                let newExpressionChangedPayload = isNewExpressionChangedPayload(path);
+                console.log(newExpressionChangedPayload);
+                return newExpressionChangedPayload;
+            })
+            .replaceWith(path => {
+                return `{ type: "ChangedPayload" }`;
+                R;
+            })
+            .toSource()
+    );
+};

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+import { Context, ChangedPayload } from "almin";`