Delphi的$ WARN编译器指令的标识符

Question

Delphi有一个$ WARN编译器指令,允许用户有选择地启用或禁用特定警告.Delphi 2009帮助文件描述了语法:

{$WARN identifier ON|OFF}

但它只列出了6个警告的标识符.

我想要一个完整的所有警告标识符列表.特别是,我想知道Delphi 2009中隐式字符串强制转换警告W1057和W1058的标识符.

我设法猜测隐含的Ansi-> Unicode转换(W1057):

{$WARN IMPLICIT_STRING_CAST OFF}

谷歌搜索发现我另一个:

{$WARN IMPLICIT_STRING_CAST_LOSS OFF}

虽然这解决了我的迫切需要,但我仍然想知道完整的警告标识符列表.应该记录这样的东西.

Answer 1

Darian说DCCStrs.pas列出了Delphi编译器使用的标识符.我没有想过搜索源代码,因为Delphi没有将源代码包含在其编译器中.

我从该文件中提取了提示和警告的标识符:

• {$WARN ASG_TO_TYPED_CONST OFF}
• {$WARN BAD_GLOBAL_SYMBOL OFF}
• {$WARN BOUNDS_ERROR OFF}
• {$WARN CASE_LABEL_RANGE OFF}
• {$WARN COMBINING_SIGNED_UNSIGNED OFF}
• {$WARN COMPARING_SIGNED_UNSIGNED OFF}
• {$WARN COMPARISON_FALSE OFF}
• {$WARN COMPARISON_TRUE OFF}
• {$WARN CONSTRUCTING_ABSTRACT OFF}
• {$WARN CVT_ACHAR_TO_WCHAR OFF}
• {$WARN CVT_NARROWING_STRING_LOST OFF}
• {$WARN CVT_WCHAR_TO_ACHAR OFF}
• {$WARN CVT_WIDENING_STRING_LOST OFF}
• {$WARN DUPLICATE_CTOR_DTOR OFF}
• {$WARN DUPLICATES_IGNORED OFF}
• {$WARN EXPLICIT_STRING_CAST OFF}
• {$WARN EXPLICIT_STRING_CAST_LOSS OFF}
• {$WARN FILE_OPEN OFF}
• {$WARN FILE_OPEN_UNITSRC OFF}
• {$WARN FOR_LOOP_VAR_UNDEF OFF}
• {$WARN FOR_LOOP_VAR_VARPAR OFF}
• {$WARN FOR_VARIABLE OFF}
• {$WARN GARBAGE OFF}
• {$WARN HIDDEN_VIRTUAL OFF}
• {$WARN HIDING_MEMBER OFF}
• {$WARN HPPEMIT_IGNORED OFF}
• {$WARN HRESULT_COMPAT OFF}
• {$WARN IMAGEBASE_MULTIPLE OFF}
• {$WARN IMPLICIT_IMPORT OFF}
• {$WARN IMPLICIT_STRING_CAST OFF}
• {$WARN IMPLICIT_STRING_CAST_LOSS OFF}
• {$WARN IMPLICIT_VARIANTS OFF}
• {$WARN INVALID_DIRECTIVE OFF}
• {$WARN LOCAL_PINVOKE OFF}
• {$WARN LOCALE_TO_UNICODE OFF}
• {$WARN MESSAGE_DIRECTIVE OFF}
• {$WARN NO_CFG_FILE_FOUND OFF}
• {$WARN NO_RETVAL OFF}
• {$WARN OPTION_TRUNCATED OFF}
• {$WARN PACKAGE_NO_LINK OFF}
• {$WARN PACKAGED_THREADVAR OFF}
• {$WARN PRIVATE_PROPACCESSOR OFF}
• {$WARN RLINK_WARNING OFF}
• {$WARN STRING_CONST_TRUNCED OFF}
• {$WARN SUSPICIOUS_TYPECAST OFF}
• {$WARN SYMBOL_DEPRECATED OFF}
• {$WARN SYMBOL_EXPERIMENTAL OFF}
• {$WARN SYMBOL_LIBRARY OFF}
• {$WARN SYMBOL_PLATFORM OFF}
• {$WARN TYPED_CONST_VARPAR OFF}
• {$WARN TYPEINFO_IMPLICITLY_ADDED OFF}
• {$WARN UNICODE_TO_LOCALE OFF}
• {$WARN UNIT_DEPRECATED OFF}
• {$WARN UNIT_EXPERIMENTAL OFF}
• {$WARN UNIT_INIT_SEQ OFF}
• {$WARN UNIT_LIBRARY OFF}
• {$WARN UNIT_NAME_MISMATCH OFF}
• {$WARN UNIT_PLATFORM OFF}
• {$WARN UNSAFE_CAST OFF}
• {$WARN UNSAFE_CODE OFF}
• {$WARN UNSAFE_TYPE OFF}
• {$WARN UNSUPPORTED_CONSTRUCT OFF}
• {$WARN USE_BEFORE_DEF OFF}
• {$WARN WIDECHAR_REDUCED OFF}
• {$WARN XML_CREF_NO_RESOLVE OFF}
• {$WARN XML_EXPECTED_CHARACTER OFF}
• {$WARN XML_INVALID_NAME OFF}
• {$WARN XML_INVALID_NAME_START OFF}
• {$WARN XML_NO_MATCHING_PARM OFF}
• {$WARN XML_NO_PARM OFF}
• {$WARN XML_UNKNOWN_ENTITY OFF}
• {$WARN XML_WHITESPACE_NOT_ALLOWED OFF}
• {$WARN ZERO_NIL_COMPAT OFF}

Answer 2

我查看了帮助,但没有看到完整的列表...所以在代码中看到编译器警告常量全部列在:CodeGear\RAD Studio\6.0\sources\toolsapi\DCCStrs.pas

搜索"Implicit_String_Cast_Loss",您将看到常量sIMPLICIT_STRING_CAST_LOSS ='DCC_IMPLICIT_STRING_CAST_LOSS';

我假设其余的DCC_xxx字符串与相应的X_true/_false/_error定义是你所追求的.

自Delphi 7以来,在线帮助并不是很好.

Answer 3

Delphi 2009文档中未提及的其他内容:

除了ON和OFF之外,$ WARN指令现在还有第3个选项ERROR.所以你可以:

{$WARN IMPLICIT_STRING_CAST OFF} to disable the warning
{$WARN IMPLICIT_STRING_CAST ON} to enable warning
{$WARN IMPLICIT_STRING_CAST ERROR} to turn the warning into an error

Answer 4

像这样的东西应该记录在案

截至今天，标识符的完整列表及其编译器警告编号列在文档中：

http://docwiki.embarcadero.com/RADStudio/en/Warning_messages_(Delphi)

摘抄：

$WARN 指令中的标识符可以具有以下任何值：

| 警告 | 标识符 |
|:-----------------:|:----------:|
| SYMBOL_DEPRECATED | W1000 |
| SYMBOL_LIBRARY | W1001 |
| (...) | (...) |