fix: correct and simplify parsing of expressions.

The expressions were parsed from right to left, and it was incorrect and
cumbersome. Now they are processed from left to right, with a simpler
and correct handling of precedence rules.

The vm function call syntax has been changed to set the function
before the input arguments on the stack, as to follow the declaring
order in languages.

1 files changed, 10 insertions, 0 deletions

diff --git a/vm/type.go b/vm/type.go
index 644c106..3a8d901 100644
--- a/vm/type.go
+++ b/vm/type.go
@@ -104,3 +104,13 @@ func (t *Type) FieldIndex(name string) []int {
 	}
 	return nil
 }
+
+// FieldType returns the type of struct field name.
+func (t *Type) FieldType(name string) *Type {
+	for _, f := range reflect.VisibleFields(t.Rtype) {
+		if f.Name == name {
+			return &Type{Name: f.Name, PkgPath: f.PkgPath, Rtype: f.Type}
+		}
+	}
+	return nil
+}