[PATCH] D140794: [ASTMatcher] Add coroutineBodyStmt matcher

Chris Cotter via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon Jan 9 20:37:49 PST 2023


ccotter added inline comments.


================
Comment at: clang/include/clang/ASTMatchers/ASTMatchers.h:5503
+                                                          FunctionDecl,
+                                                          CoroutineBodyStmt),
                           internal::Matcher<Stmt>, InnerMatcher) {
----------------
aaron.ballman wrote:
> I'm not certain it makes sense to me to add `CoroutineBodyStmt` to `hasBody` -- in this case, it doesn't *have* a body, it *is* the body.
With respect to `hasBody()`, my intent was to treat the CoroutineBodyStmt node as analogous to a FunctionDecl or WhileStmt. WhileStmts have information like the loop condition expression, as CoroutineBodyStmts contain the synthesized expressions such as the initial suspend Stmt. Both WhileStmts and CoroutineBodyStmts then have the `getBody()` methods, usually a CompoundStmt for WhileStmts and either a CompoundStmt or TryStmt for CoroutineBodyStmts.

Ultimately, I wanted to be able to match the CoroutineBodyStmt's `function-body` (using the grammar) from the standard, e.g., `coroutineBodyStmt(hasBody(compoundStmt().bind(...)))`. If there is a different approach you'd recommend that's in line with the AST matcher design strategy, I can use that instead.


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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D140794/new/

https://reviews.llvm.org/D140794



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