A cursor representing some element in the abstract syntax tree for a translation unit. More...
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A cursor representing some element in the abstract syntax tree for a translation unit.
The cursor abstraction unifies the different kinds of entities in a program–declaration, statements, expressions, references to declarations, etc.–under a single "cursor" abstraction with a common set of operations. Common operation for a cursor include: getting the physical location in a source file where the cursor points, getting the name associated with a cursor, and retrieving cursors for any child nodes of a particular cursor.
Cursors can be produced in two specific ways. clang_getTranslationUnitCursor() produces a cursor for a translation unit, from which one can use clang_visitChildren() to explore the rest of the translation unit. clang_getCursor() maps from a physical source location to the entity that resides at that location, allowing one to map from the source code into the AST.