Fix debug build on OSX (#33)

taalexander · web-flow · commit a9cf9fa3599b · 2024-03-26T07:23:28.000-04:00
Closes #32. Fixes iteration of tokens on OSX.
diff --git a/include/qasm/AST/ASTBase.h b/include/qasm/AST/ASTBase.h
@@ -201,12 +201,10 @@ class ASTTokenFactory {
   }
 
   static const ASTToken *GetPreviousToken() {
-    std::map<uint32_t, ASTToken *>::const_reverse_iterator MRI = TFM.rbegin();
-    if (MRI == TFM.rend())
+    if (TFM.empty())
       return nullptr;
 
-    --MRI;
-    return MRI == TFM.rend() ? nullptr : (*MRI).second;
+    return std::prev(TFM.end())->second;
   }
 
   static uint32_t GetCurrentIndex() { return TIX; }

Original file line number	Diff line number	Diff line change
`@@ -201,12 +201,10 @@ class ASTTokenFactory {`
`201`	`201`	`}`
`202`	`202`
`203`	`203`	`static const ASTToken *GetPreviousToken() {`
`204`		`- std::map<uint32_t, ASTToken *>::const_reverse_iterator MRI = TFM.rbegin();`
`205`		`- if (MRI == TFM.rend())`
	`204`	`+ if (TFM.empty())`
`206`	`205`	`return nullptr;`
`207`	`206`
`208`		`- --MRI;`
`209`		`- return MRI == TFM.rend() ? nullptr : (*MRI).second;`
	`207`	`+ return std::prev(TFM.end())->second;`
`210`	`208`	`}`
`211`	`209`
`212`	`210`	`static uint32_t GetCurrentIndex() { return TIX; }`