Add ability to transfer compilation errors into runtime.

ember-cli · May 6, 2020 · bdbe63a · bdbe63a
1 parent ee12993
commit bdbe63a
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Showing 2 changed files with 32 additions and 1 deletion.
diff --git a/__tests__/tests.js b/__tests__/tests.js
@@ -87,6 +87,22 @@ describe('htmlbars-inline-precompile', function() {
     `);
   });
 
+  it('avoids a build time error when passed `insertRuntimeErrors`', function() {
+    precompile = () => {
+      throw new Error('NOOOOOOOOOOOOOOOOOOOOOO');
+    };
+
+    let transformed = transform(
+      `import hbs from 'htmlbars-inline-precompile';\nvar compiled = hbs('hello', { insertRuntimeErrors: true });`
+    );
+
+    expect(transformed).toMatchInlineSnapshot(`
+      "var compiled = function () {
+        throw new Error(\\"NOOOOOOOOOOOOOOOOOOOOOO\\");
+      }();"
+    `);
+  });
+
   it('escapes any */ included in the template string', function() {
     let transformed = transform(stripIndent`
       import hbs from 'htmlbars-inline-precompile';

diff --git a/index.js b/index.js
@@ -3,6 +3,10 @@
 module.exports = function(babel) {
   let t = babel.types;
 
+  const runtimeErrorIIFE = babel.template(`(function() {
+  throw new Error('ERROR_MESSAGE');
+})();`);
+
   function buildExpression(value) {
     switch (typeof value) {
       case 'string':
@@ -88,7 +92,18 @@ module.exports = function(babel) {
   function compileTemplate(precompile, template, _options) {
     let options = Object.assign({ contents: template }, _options);
 
-    let precompileResult = precompile(template, options);
+    let precompileResult;
+
+    if (options.insertRuntimeErrors) {
+      try {
+        precompileResult = precompile(template, options);
+      } catch (error) {
+        return runtimeErrorIIFE({ ERROR_MESSAGE: error.message });
+      }
+    } else {
+      precompileResult = precompile(template, options);
+    }
+
     let precompiled = JSON.parse(precompileResult);
 
     let templateExpression = buildExpression(precompiled);