Implement struct types, selector expressions, and type

declarations.

R=rsc
APPROVED=rsc
DELTA=587  (519 added, 21 deleted, 47 changed)
OCL=32754
CL=32788

1 files changed, 9 insertions, 0 deletions

diff --git a/usr/austin/eval/decls.go b/usr/austin/eval/decls.go
index 3b1ed70ae..c34baed87 100644
--- a/usr/austin/eval/decls.go
+++ b/usr/austin/eval/decls.go
@@ -22,6 +22,8 @@ type Type interface {
 	// same named type.  If conv if true, this is conversion
 	// compatibility, where two named types are conversion
 	// compatible if their definitions are conversion compatible.
+	//
+	// TODO(austin) Deal with recursive types
 	compat(o Type, conv bool) bool;
 	// lit returns this type's literal.  If this is a named type,
 	// this is the unnamed underlying type.  Otherwise, this is an
@@ -113,6 +115,13 @@ type ArrayValue interface {
 	Elem(i int64) Value;
 }
 
+type StructValue interface {
+	Value;
+	// TODO(austin) This is another useless Get()
+	Get() StructValue;
+	Field(i int) Value;
+}
+
 type PtrValue interface {
 	Value;
 	Get() Value;