typeAcceptor fixes

fixed "all not found" error with "all" types requested;
empty types are now illegal;

Author: amanofbits

internal/parser/input.go

@@ -78,8 +78,10 @@ func (fi InputFile) Ast() *ast.File { return fi.Pkg.Syntax[fi.SyntaxIdx] }
 type TypeAcceptor interface {
 	// Should return true if type is required to be serializable
 	Accepts(tspec *ast.TypeSpec) bool
-	// should return true if no more types are expected
+	// Should return true if no more types are expected
 	IsDrained() bool
+	// Should return true if acceptor has no type restrictions
+	AcceptsAll() bool
 	fmt.Stringer
 }
 
@@ -88,7 +90,7 @@ func (fi InputFile) GetInputStructs(acceptor TypeAcceptor) ([]domain.InputStruct
 	if err != nil {
 		return nil, err
 	}
-	if !acceptor.IsDrained() {
+	if !acceptor.IsDrained() && !acceptor.AcceptsAll() {
 		return nil, fmt.Errorf("types '%s' were requested but not found", acceptor)
 	}
 	if len(structs) == 0 {

typeacceptor.go

@@ -19,6 +19,7 @@ import (
 	"fmt"
 	"go/ast"
 
+	"github.com/am4n0w4r/simser/internal/domain"
 	"golang.org/x/exp/maps"
 )
 
@@ -30,6 +31,9 @@ func newTypeAcceptor(rawTypeList []string) (*typeAcceptor, error) {
 	}
 	st := map[string]uint8{}
 	for _, v := range rawTypeList {
+		if v == "" {
+			return nil, errors.Join(domain.ErrUnsupportedType, errors.New("empty type name in type list"))
+		}
 		st[v] = 0
 	}
 	return (*typeAcceptor)(&st), nil
@@ -47,11 +51,12 @@ func (st *typeAcceptor) Accepts(ts *ast.TypeSpec) bool {
 }
 
 func (ts typeAcceptor) IsDrained() bool {
-	_, hasAll := ts["all"]
-	if len(ts) == 1 && hasAll {
-		return false
-	}
 	return len(ts) == 0
 }
 
+func (ta typeAcceptor) AcceptsAll() bool {
+	_, hasAll := ta["all"]
+	return len(ta) == 1 && hasAll
+}
+
 func (ts typeAcceptor) String() string { return fmt.Sprintf("%s", maps.Keys(ts)) }