1 files changed, 8 insertions, 12 deletions
diff --git a/src/runtime/c/pgf/expr.h b/src/runtime/c/pgf/expr.h
index b775bd9b5..9a5d483a5 100644
--- a/src/runtime/c/pgf/expr.h
+++ b/src/runtime/c/pgf/expr.h
@@ -170,15 +170,6 @@ pgf_expr_unmeta(PgfExpr expr);
 PGF_API_DECL PgfExpr
 pgf_read_expr(GuIn* in, GuPool* pool, GuPool* tmp_pool, GuExn* err);
 
-PGF_API_DECL int
-pgf_read_expr_tuple(GuIn* in,
-                    size_t n_exprs, PgfExpr exprs[],
-                    GuPool* pool, GuExn* err);
-
-PGF_API_DECL GuSeq*
-pgf_read_expr_matrix(GuIn* in, size_t n_exprs,
-                     GuPool* pool, GuExn* err);
-
 PGF_API_DECL PgfType*
 pgf_read_type(GuIn* in, GuPool* pool, GuPool* tmp_pool, GuExn* err);
 
@@ -238,9 +229,14 @@ PGF_API_DECL void
 pgf_print_context(PgfHypos *hypos, PgfPrintContext* ctxt,
                   GuOut *out, GuExn *err);
 
-PGF_API_DECL void
-pgf_print_expr_tuple(size_t n_exprs, PgfExpr exprs[], PgfPrintContext* ctxt,
-                     GuOut* out, GuExn* err);
+PGF_API PgfLiteral
+pgf_clone_literal(PgfLiteral lit, GuPool* pool);
+
+PGF_API PgfExpr
+pgf_clone_expr(PgfExpr expr, GuPool* pool);
+
+PGF_API PgfType*
+pgf_clone_type(PgfType* type, GuPool* pool);
 
 PGF_API_DECL prob_t
 pgf_compute_tree_probability(PgfPGF *gr, PgfExpr expr);