feat: syntax error vs panic + fix linting

Author: amkCha

pkg/asm/assembler/linker.go

@@ -262,7 +262,9 @@ func (p *Linker) linkExprs(es []macro.Expr) *source.SyntaxError {
 
 func (p *Linker) getLabelValue(l string) (big.Int, string) {
 	var deats util.Pair[big.Int, uint]
+	//
 	var ok bool
+	//
 	if l != "" {
 		deats, ok = p.constmap[module.NewName(l, 1)]
 		//
@@ -271,6 +273,7 @@ func (p *Linker) getLabelValue(l string) (big.Int, string) {
 			return big.Int{}, msg
 		}
 	}
+	//
 	return deats.Left, ""
 }
 

pkg/asm/assembler/parser.go

@@ -596,7 +596,9 @@ func (p *Parser) parseTernaryRhs(targets []io.RegisterId, env *Environment) (mac
 		rhs = e.Constant
 		label = e.Label
 	case *expr.RegAccess:
-		panic(fmt.Sprintf("ternary operator does not support register on the rhs"))
+		// We can invoke (p.index - 1) as we are in the case of a ternary operator
+		// Checks are already performed to have a lhs
+		return nil, p.syntaxErrors(p.tokens[p.index-1], "ternary operator does not support register on the rhs")
 	}
 	// expect question mark
 	if _, errs = p.expect(QMARK); len(errs) > 0 {