为native环境注入了OAK_PLATFORM环境变量的处理

config/native/babelEnvPlugin.js

@@ -0,0 +1,37 @@
+const t = require('@babel/types');
+const assert = require('assert');
+
+const REPLACE_HOLDERS = {
+    OAK_PLATFORM: 'native',
+};
+
+function replaceEnvExpressionPlugin() {
+    return {
+        visitor: {
+            MemberExpression(path, state) {
+                const { node } = path;
+                // process.env.XXXXX
+                if (
+                    t.isMemberExpression(node) &&
+                    t.isMemberExpression(node.object) &&
+                    t.isIdentifier(node.object.object) &&
+                    node.object.object.name === 'process'  &&
+                    t.isIdentifier(node.object.property) &&
+                    node.object.property.name === 'env'
+                ) {
+                    const { property } = node;
+                    assert(t.isIdentifier(property));
+                    const { name } = property;
+                    if (REPLACE_HOLDERS[name]) {
+                        console.log(state.filename, name);
+                        path.replaceWith(
+                            t.stringLiteral(REPLACE_HOLDERS[name])
+                        );
+                    }
+                }
+            }
+        }
+    };
+}
+
+module.exports = replaceEnvExpressionPlugin;

config/native/transformer.js

@@ -18,6 +18,7 @@ const less = require('less');
 const css2rn = require("css-to-react-native-transform").default;
 const { parseSync, transformFromAstSync, transformSync: babelTransform } = require("@babel/core");
 const nullthrows = require("nullthrows");
+const replaceEnvExpressionPlugin = require('./babelEnvPlugin');
 
 const { injectGetRender } = require('../utils/injectGetRender');
 
@@ -49,7 +50,7 @@ function transform({ filename, options, plugins, src }) {
             cwd: options.projectRoot,
             highlightCode: true,
             filename,
-            plugins,
+            plugins: plugins.concat(replaceEnvExpressionPlugin),
             sourceType: "module",
             // NOTE(EvanBacon): We split the parse/transform steps up to accommodate
             // Hermes parsing, but this defaults to cloning the AST which increases
@@ -81,7 +82,7 @@ function transform({ filename, options, plugins, src }) {
                     }
                 })
             }
-            // injectGetRender(transformResult.ast.program.body, path.resolve(process.cwd(), '..'), filename, 'native');
+            
             return {
                 ast: nullthrows(transformResult.ast),
                 metadata: transformResult.metadata,