| | 1 | = Macro entity = |
| | 2 | |
| | 3 | Preprocessor macro directives can be queried using the macro entity. |
| | 4 | |
| | 5 | == Initial selector == |
| | 6 | * {{{@macro}}}: this selector can be used to start a query with the currently selected macro. |
| | 7 | |
| | 8 | == Selectors == |
| | 9 | |
| | 10 | ''After the name of the selector between parentheses you can find the type of the elements in the resulted set.'' |
| | 11 | |
| | 12 | * {{{refs}}} (''expression''): returns every expression that refers to the given macro with the form {{{?Macro...}}}. |
| | 13 | * {{{file}}} (''file''): returns the file entity that the macro is defined in. |
| | 14 | |
| | 15 | == Properties == |
| | 16 | |
| | 17 | Macro entities have the following properties: |
| | 18 | * {{{name}}} (''atom, string''): returns the identifier of the macro. |
| | 19 | * {{{arity}}} (''int''): returns the arity of a given parametric macro. If the macro is a constant, the arity is 0. |
| | 20 | * {{{const}}} (''bool''): returns true if the given macro is a constant. Note, that there are parametric macros with no parameters, these are treated as non-constant macros. |
