cmd/compile: document more Node fields
Change-Id: Ic8d37e5612b68bc73c4b50b59db54d8966b69838
Reviewed-on: https://go-review.googlesource.com/27326
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/src/cmd/compile/internal/gc/go.go b/src/cmd/compile/internal/gc/go.go
index b6b858c..5c273bb 100644
--- a/src/cmd/compile/internal/gc/go.go
+++ b/src/cmd/compile/internal/gc/go.go
@@ -67,7 +67,7 @@
Breakpc *obj.Prog // pointer to code
Continpc *obj.Prog // pointer to code
- Used bool
+ Used bool // for "label defined and not used" error
}
type SymFlags uint8
diff --git a/src/cmd/compile/internal/gc/syntax.go b/src/cmd/compile/internal/gc/syntax.go
index 79d9d8c..001e15b 100644
--- a/src/cmd/compile/internal/gc/syntax.go
+++ b/src/cmd/compile/internal/gc/syntax.go
@@ -60,12 +60,12 @@
Colas bool // OAS resulting from :=
Diag uint8 // already printed error about this
Noescape bool // func arguments do not escape; TODO(rsc): move Noescape to Func struct (see CL 7360)
- Walkdef uint8
- Typecheck uint8
+ Walkdef uint8 // tracks state during typecheckdef; 2 == loop detected
+ Typecheck uint8 // tracks state during typechecking; 2 == loop detected
Local bool
IsStatic bool // whether this Node will be converted to purely static data
Initorder uint8
- Used bool
+ Used bool // for variable/label declared and not used error
Isddd bool // is the argument variadic
Implicit bool
Addrtaken bool // address taken, even if not moved to heap
