CPlusPlus: Add support for coroutines

Also fix some concept-related bugs uncovered by the test case.

Change-Id: Ia67c971026bcd85d9cc252f46cd4f56c2865d432
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/libs/3rdparty/cplusplus/ASTMatcher.cpp b/src/libs/3rdparty/cplusplus/ASTMatcher.cpp
index d39d0717c5..4567cd68a2 100644
--- a/src/libs/3rdparty/cplusplus/ASTMatcher.cpp
+++ b/src/libs/3rdparty/cplusplus/ASTMatcher.cpp
@@ -2277,6 +2277,26 @@ bool ASTMatcher::match(ThrowExpressionAST *node, ThrowExpressionAST *pattern)
     return true;
 }
 
+bool ASTMatcher::match(YieldExpressionAST *node, YieldExpressionAST *pattern)
+{
+    pattern->yield_token = node->yield_token;
+    if (!pattern->expression)
+        pattern->expression = node->expression;
+    else if (!AST::match(node->expression, pattern->expression, this))
+        return false;
+    return true;
+}
+
+bool ASTMatcher::match(AwaitExpressionAST *node, AwaitExpressionAST *pattern)
+{
+    pattern->await_token = node->await_token;
+    if (!pattern->castExpression)
+        pattern->castExpression = node->castExpression;
+    else if (!AST::match(node->castExpression, pattern->castExpression, this))
+        return false;
+    return true;
+}
+
 bool ASTMatcher::match(NoExceptOperatorExpressionAST *node, NoExceptOperatorExpressionAST *pattern)
 {
     (void) node;
@@ -2398,6 +2418,11 @@ bool ASTMatcher::match(TemplateTypeParameterAST *node, TemplateTypeParameterAST
 
     pattern->template_token = node->template_token;
 
+    if (!pattern->typeConstraint)
+        pattern->typeConstraint = node->typeConstraint;
+    else if (!AST::match(node->typeConstraint, pattern->typeConstraint, this))
+        return false;
+
     pattern->less_token = node->less_token;
 
     if (! pattern->template_parameter_list)