For other CodeQL resources, including tutorials and examples, see the CodeQL documentation

Preprocessor

Module Preprocessor

Provides all preprocessor directive classes.


                                import semmle.code.csharp.Preprocessor

Provides the Element class, the base class of all C# program elements.

BranchDirective	A branching preprocessor directive, such as `IfDirective`, `ElifDirective`, or `ElseDirective`.
ConditionalDirective	A preprocessor directive with a branching condition, such as `IfDirective` or `ElifDirective`.
DefaultLineDirective	A `#line default` directive.
DefineDirective	A `#define` directive.
ElifDirective	An `#elif` preprocessor directive.
ElseDirective	An `#else` preprocessor directive.
EndRegionDirective	An `#endregion` directive.
EndifDirective	An `#endif` preprocessor directive.
ErrorDirective	An `#error` directive.
HiddenLineDirective	A `#line hidden` directive.
IfDirective	An `#if` preprocessor directive.
LineDirective	A `#line` directive, such as `#line default`, `#line hidden`, or `#line` directive with line number.
NullableDirective	A `#nullable` directive.
NumericLineDirective	A numeric `#line` directive, such as `#line 200 file`.
PragmaChecksumDirective	A `#pragma checksum` directive.
PragmaWarningDirective	A `#pragma warning` directive.
PreprocessorDirective	A preprocessor directive, such as `PragmaWarningDirective`, `PragmaChecksumDirective`, `DefineDirective`, `UndefineDirective`, `WarningDirective`, `ErrorDirective`, `NullableDirective`, `LineDirective`, `RegionDirective`, `EndRegionDirective`, `BranchDirective`, or `EndifDirective`.
RegionDirective	A `#region` directive.
SpanLineDirective	A line span `#line` directive, such as `#line (1, 1) - (3, 10) 5 file`.
UndefineDirective	An `#undef` directive.
WarningDirective	A `#warning` directive.