input-text组件的placeholder属性支持表达式 #7426 判断空值逻辑中也执行filter表达式

packages/amis/src/renderers/Form/InputText.tsx

@@ -734,6 +734,8 @@ export default class TextControl extends React.PureComponent<
             });
           }
 
+          const filteredPlaceholder = filter(placeholder, data);
+
           return (
             <div
               className={cx(
@@ -750,12 +752,12 @@ export default class TextControl extends React.PureComponent<
               onClick={this.handleClick}
             >
               <>
-                {placeholder &&
+                {filteredPlaceholder &&
                 !selectedOptions.length &&
                 !this.state.inputValue &&
                 !this.state.isFocused ? (
                   <div className={cx('TextControl-placeholder')}>
-                    {filter(placeholder, data)}
+                    {filteredPlaceholder}
                   </div>
                 ) : null}