Merge pull request #5668 from kumpera/wasm-work-p4

[mono.git] / mcs / mcs / anonymous.cs

diff --git a/mcs/mcs/anonymous.cs b/mcs/mcs/anonymous.cs
index 80481ed2091f6ba2cf1deb7c25e4c5514ce9e529..3ce9b0c9f199189c703238261602f52d1acb5e33 100644 (file)
--- a/mcs/mcs/anonymous.cs
+++ b/mcs/mcs/anonymous.cs
@@ -839,6 +839,11 @@ namespace Mono.CSharp {
                {
                        GetFieldExpression (ec).EmitAssign (ec, source, leave_copy, false);
                }
+
+               public void EmitAssignFromStack (EmitContext ec)
+               {
+                       GetFieldExpression (ec).EmitAssignFromStack (ec);
+               }
        }
 
        public class HoistedParameter : HoistedVariable
@@ -1595,6 +1600,15 @@ namespace Mono.CSharp {
                        if (res && errors != ec.Report.Errors)
                                return null;
 
+                       if (block.IsAsync && block.Original.ParametersBlock.HasCapturedThis && ec.CurrentAnonymousMethod != null && ec.CurrentAnonymousMethod.block.IsAsync) {
+                               //
+                               // We'll do ldftn to load the fabricated m_X method but
+                               // because we are inside struct the method can be hoisted
+                               // anywhere in the parent scope
+                               //
+                               ec.CurrentBlock.ParametersBlock.HasReferenceToStoreyForInstanceLambdas = true;
+                       }
+
                        return res ? this : null;
                }
 
@@ -1643,9 +1657,10 @@ namespace Mono.CSharp {
                        fc.TryFinally = prev_tf;
                }
 
-               public override void MarkReachable (Reachability rc)
+               public override Reachability MarkReachable (Reachability rc)
                {
                        block.MarkReachable (rc);
+                       return rc;
                }
 
                public void SetHasThisAccess ()
@@ -1798,6 +1813,8 @@ namespace Mono.CSharp {
                                                        parent = storey = sm;
                                                }
                                        }
+                               } else if (src_block.ParametersBlock.HasReferenceToStoreyForInstanceLambdas) {
+                                       src_block.ParametersBlock.StateMachine.AddParentStoreyReference (ec, storey);
                                }
 
                                modifiers = storey != null ? Modifiers.INTERNAL : Modifiers.PRIVATE;