1 files changed, 20 insertions, 0 deletions
diff --git a/src/runtime/c/pgf/data.h b/src/runtime/c/pgf/data.h
index d75b17f85..552856995 100644
--- a/src/runtime/c/pgf/data.h
+++ b/src/runtime/c/pgf/data.h
@@ -76,6 +76,7 @@ typedef struct {
 	PgfEquations* defns; // maybe null
 	PgfExprProb ep;
 	void* predicate;
+	void* function;
 } PgfAbsFun;
 
 extern GU_DECLARE_TYPE(PgfAbsFun, abstract);
@@ -102,6 +103,25 @@ typedef struct {
 	PgfAbsFun* abs_lin_fun;
 } PgfAbstr;
 
+typedef enum {
+  PGF_INSTR_EVAL,
+  PGF_INSTR_CASE,
+  PGF_INSTR_CASE_INT,
+  PGF_INSTR_CASE_STR,
+  PGF_INSTR_CASE_FLT,
+  PGF_INSTR_ALLOC,
+  PGF_INSTR_PUT_CONSTR,
+  PGF_INSTR_PUT_CLOSURE,
+  PGF_INSTR_PUT_INT,
+  PGF_INSTR_PUT_STR,
+  PGF_INSTR_PUT_FLT,
+  PGF_INSTR_SET_VALUE,
+  PGF_INSTR_SET_VARIABLE,
+  PGF_INSTR_TAIL_CALL,
+  PGF_INSTR_FAIL,
+  PGF_INSTR_RET
+} PgfInstruction;
+
 struct PgfPGF {
 	uint16_t major_version;
 	uint16_t minor_version;