nodejs
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‎lib/repl.js‎
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+21-13Lines changed: 21 additions & 13 deletions b/Collapse file
‎lib/repl.js‎
Copy file name to clipboardExpand all lines: lib/repl.js
+21-13Lines changed: 21 additions & 13 deletions
diff --git a/Collapse file
‎test/known_issues/test-repl-function-redefinition-edge-case.js‎
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‎test/known_issues/test-repl-function-redefinition-edge-case.js‎
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+38Lines changed: 38 additions & 0 deletions
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‎test/parallel/test-repl.js‎
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‎test/parallel/test-repl.js‎
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+5Lines changed: 5 additions & 0 deletions
@@ -471,19 +471,7 @@ function REPLServer(prompt,
     }
 
     var evalCmd = self.bufferedCommand + cmd;
-    if (/^\s*\{/.test(evalCmd) && /\}\s*$/.test(evalCmd)) {
-      // It's confusing for `{ a : 1 }` to be interpreted as a block
-      // statement rather than an object literal.  So, we first try
-      // to wrap it in parentheses, so that it will be interpreted as
-      // an expression.
-      evalCmd = '(' + evalCmd + ')\n';
-      self.wrappedCmd = true;
-    } else {
-      // otherwise we just append a \n so that it will be either
-      // terminated, or continued onto the next expression if it's an
-      // unexpected end of input.
-      evalCmd = evalCmd + '\n';
-    }
+    evalCmd = preprocess(evalCmd);
 
     debug('eval %j', evalCmd);
     self.eval(evalCmd, self.context, 'repl', finish);
@@ -538,6 +526,26 @@ function REPLServer(prompt,
       // Display prompt again
       self.displayPrompt();
     }
+
+    function preprocess(code) {
+      let cmd = code;
+      if (/^\s*\{/.test(cmd) && /\}\s*$/.test(cmd)) {
+        // It's confusing for `{ a : 1 }` to be interpreted as a block
+        // statement rather than an object literal.  So, we first try
+        // to wrap it in parentheses, so that it will be interpreted as
+        // an expression.
+        cmd = `(${cmd})`;
+        self.wrappedCmd = true;
+      } else {
+        // Mitigate https://github.com/nodejs/node/issues/548
+        cmd = cmd.replace(/^\s*function\s+([^(]+)/,
+                  (_, name) => `var ${name} = function ${name}`);
+      }
+      // Append a \n so that it will be either
+      // terminated, or continued onto the next expression if it's an
+      // unexpected end of input.
+      return `${cmd}\n`;
+    }
   });
 
   self.on('SIGCONT', function() {
 
@@ -0,0 +1,38 @@
+// Reference: https://github.com/nodejs/node/pull/7624
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const repl = require('repl');
+const stream = require('stream');
+
+common.globalCheck = false;
+
+const r = initRepl();
+
+r.input.emit('data', 'function a() { return 42; } (1)\n');
+r.input.emit('data', 'a\n');
+r.input.emit('data', '.exit');
+
+const expected = '1\n[Function a]\n';
+const got = r.output.accumulator.join('');
+assert.strictEqual(got, expected);
+
+function initRepl() {
+  const input = new stream();
+  input.write = input.pause = input.resume = () => {};
+  input.readable = true;
+
+  const output = new stream();
+  output.writable = true;
+  output.accumulator = [];
+
+  output.write = (data) => output.accumulator.push(data);
+
+  return repl.start({
+    input,
+    output,
+    useColors: false,
+    terminal: false,
+    prompt: ''
+  });
+}
@@ -328,6 +328,11 @@ function error_test() {
     // or block comment. https://github.com/nodejs/node/issues/3611
     { client: client_unix, send: 'a = 3.5e',
       expect: /^SyntaxError: Unexpected token ILLEGAL/ },
+    // Mitigate https://github.com/nodejs/node/issues/548
+    { client: client_unix, send: 'function name(){ return "node"; };name()',
+      expect: "'node'\n" + prompt_unix },
+    { client: client_unix, send: 'function name(){ return "nodejs"; };name()',
+      expect: "'nodejs'\n" + prompt_unix },
   ]);
 }