diff --git a/packages/babel-generator/src/printer.ts b/packages/babel-generator/src/printer.ts
index e316910249..5e378f64aa 100644
--- a/packages/babel-generator/src/printer.ts
+++ b/packages/babel-generator/src/printer.ts
@@ -308,15 +308,17 @@ class Printer {
     this._maybePrintInnerComments(str);
 
     this._maybeAddAuxComment();
-    this._append(
-      str,
-      false,
-      undefined,
-      // prevent concatenating words and creating // comment out of division and regex
-      () =>
-        this._endsWithWord ||
-        (this._endsWithDiv && str.charCodeAt(0) === charCodes.slash),
-    );
+
+    if (this.tokenMap) this._catchUpToCurrentToken(str);
+
+    // prevent concatenating words and creating // comment out of division and regex
+    if (
+      this._endsWithWord ||
+      (this._endsWithDiv && str.charCodeAt(0) === charCodes.slash)
+    ) {
+      this._space();
+    }
+    this._append(str, false);
 
     this._endsWithWord = true;
     this._noLineTerminator = noLineTerminatorAfter;
@@ -368,24 +370,27 @@ class Printer {
     this._maybePrintInnerComments(str, occurrenceCount);
 
     this._maybeAddAuxComment();
-    this._append(str, maybeNewline, occurrenceCount, () => {
-      const lastChar = this.getLastChar();
-      const strFirst = str.charCodeAt(0);
-
-      return (
-        (lastChar === charCodes.exclamationMark &&
-          // space is mandatory to avoid outputting <!--
-          // http://javascript.spec.whatwg.org/#comment-syntax
-          (str === "--" ||
-            // Needs spaces to avoid changing a! == 0 to a!== 0
-            strFirst === charCodes.equalsTo)) ||
-        // Need spaces for operators of the same kind to avoid: `a+++b`
-        (strFirst === charCodes.plusSign && lastChar === charCodes.plusSign) ||
-        (strFirst === charCodes.dash && lastChar === charCodes.dash) ||
-        // Needs spaces to avoid changing '34' to '34.', which would still be a valid number.
-        (strFirst === charCodes.dot && this._endsWithInteger)
-      );
-    });
+
+    if (this.tokenMap) this._catchUpToCurrentToken(str, occurrenceCount);
+
+    const lastChar = this.getLastChar();
+    const strFirst = str.charCodeAt(0);
+    if (
+      (lastChar === charCodes.exclamationMark &&
+        // space is mandatory to avoid outputting <!--
+        // http://javascript.spec.whatwg.org/#comment-syntax
+        (str === "--" ||
+          // Needs spaces to avoid changing a! == 0 to a!== 0
+          strFirst === charCodes.equalsTo)) ||
+      // Need spaces for operators of the same kind to avoid: `a+++b`
+      (strFirst === charCodes.plusSign && lastChar === charCodes.plusSign) ||
+      (strFirst === charCodes.dash && lastChar === charCodes.dash) ||
+      // Needs spaces to avoid changing '34' to '34.', which would still be a valid number.
+      (strFirst === charCodes.dot && this._endsWithInteger)
+    ) {
+      this._space();
+    }
+    this._append(str, maybeNewline);
     this._noLineTerminator = false;
   }
 
@@ -396,16 +401,20 @@ class Printer {
     this._maybePrintInnerComments(str);
 
     this._maybeAddAuxComment();
-    this._appendChar(char, () => {
-      const lastChar = this.getLastChar();
-      return (
-        // Need spaces for operators of the same kind to avoid: `a+++b`
-        (char === charCodes.plusSign && lastChar === charCodes.plusSign) ||
-        (char === charCodes.dash && lastChar === charCodes.dash) ||
-        // Needs spaces to avoid changing '34' to '34.', which would still be a valid number.
-        (char === charCodes.dot && this._endsWithInteger)
-      );
-    });
+
+    if (this.tokenMap) this._catchUpToCurrentToken(str);
+
+    const lastChar = this.getLastChar();
+    if (
+      // Need spaces for operators of the same kind to avoid: `a+++b`
+      (char === charCodes.plusSign && lastChar === charCodes.plusSign) ||
+      (char === charCodes.dash && lastChar === charCodes.dash) ||
+      // Needs spaces to avoid changing '34' to '34.', which would still be a valid number.
+      (char === charCodes.dot && this._endsWithInteger)
+    ) {
+      this._space();
+    }
+    this._appendChar(char);
     this._noLineTerminator = false;
   }
 
@@ -524,15 +533,7 @@ class Printer {
     this._printSemicolonBeforeNextNode = -1;
   }
 
-  _append(
-    str: string,
-    maybeNewline: boolean,
-    occurrenceCount: number = 0,
-    needsSpace?: () => boolean,
-  ): void {
-    if (this.tokenMap) this._catchUpToCurrentToken(str, occurrenceCount);
-    if (needsSpace?.()) this._space();
-
+  _append(str: string, maybeNewline: boolean): void {
     this._maybeIndent(str.charCodeAt(0));
 
     this._buf.append(str, maybeNewline);
@@ -543,10 +544,7 @@ class Printer {
     this._endsWithDiv = false;
   }
 
-  _appendChar(char: number, needsSpace?: () => boolean): void {
-    if (this.tokenMap) this._catchUpToCurrentToken(String.fromCharCode(char));
-    if (needsSpace?.()) this._space();
-
+  _appendChar(char: number): void {
     this._maybeIndent(char);
 
     this._buf.appendChar(char);