Initial actual commit, awaiting CI

ckiwi/ckiwi.h

@@ -0,0 +1,118 @@
+#ifndef CKIWI_H_
+#define CKIWI_H_
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define KIWI_REF_ISNULL(ref) ((ref).impl_ == NULL)
+
+// LuaJIT start
+enum KiwiErrKind {
+   KiwiErrNone,
+   KiwiErrUnsatisfiableConstraint = 1,
+   KiwiErrUnknownConstraint,
+   KiwiErrDuplicateConstraint,
+   KiwiErrUnknownEditVariable,
+   KiwiErrDuplicateEditVariable,
+   KiwiErrBadRequiredStrength,
+   KiwiErrInternalSolverError,
+   KiwiErrAlloc,
+   KiwiErrUnknown,
+};
+
+enum KiwiRelOp { KIWI_OP_LE, KIWI_OP_GE, KIWI_OP_EQ };
+
+typedef struct {
+   void* private_;
+} KiwiVarRef;
+
+typedef struct {
+   KiwiVarRef var;
+   double coefficient;
+} KiwiTerm;
+
+typedef struct {
+   double constant;
+   int term_count;
+   KiwiTerm terms[1];
+} KiwiExpression;
+
+typedef struct {
+   void* private_;
+} KiwiConstraintRef;
+
+typedef struct {
+   enum KiwiErrKind kind;
+   char message[64];
+} KiwiErr;
+
+typedef struct {
+   void* impl_;
+} KiwiSolverRef;
+
+KiwiVarRef kiwi_var_new(const char* name);
+void kiwi_var_del(KiwiVarRef var);
+
+const char* kiwi_var_name(KiwiVarRef var);
+
+void kiwi_var_set_name(KiwiVarRef var, const char* name);
+
+double kiwi_var_value(KiwiVarRef var);
+
+void kiwi_var_set_value(KiwiVarRef var, double value);
+
+int kiwi_var_eq(KiwiVarRef var, KiwiVarRef other);
+
+KiwiConstraintRef
+kiwi_constraint_new(const KiwiExpression* expression, enum KiwiRelOp op, double strength);
+void kiwi_constraint_del(KiwiConstraintRef constraint);
+
+double kiwi_constraint_strength(KiwiConstraintRef constraint);
+
+enum KiwiRelOp kiwi_constraint_op(KiwiConstraintRef constraint);
+
+int kiwi_constraint_violated(KiwiConstraintRef constraint);
+
+int kiwi_constraint_expression(
+    KiwiConstraintRef constraint,
+    KiwiExpression* out,
+    int out_size
+);
+
+KiwiErr kiwi_solver_add_constraint(KiwiSolverRef s, KiwiConstraintRef constraint);
+
+KiwiErr kiwi_solver_remove_constraint(KiwiSolverRef s, KiwiConstraintRef constraint);
+
+int kiwi_solver_has_constraint(KiwiSolverRef s, KiwiConstraintRef constraint);
+
+KiwiErr kiwi_solver_add_edit_var(KiwiSolverRef s, KiwiVarRef var, double strength);
+
+KiwiErr kiwi_solver_remove_edit_var(KiwiSolverRef s, KiwiVarRef var);
+
+int kiwi_solver_has_edit_var(KiwiSolverRef s, KiwiVarRef var);
+
+KiwiErr kiwi_solver_suggest_value(KiwiSolverRef s, KiwiVarRef var, double value);
+
+void kiwi_solver_update_vars(KiwiSolverRef s);
+
+void kiwi_solver_reset(KiwiSolverRef s);
+
+void kiwi_solver_dump(KiwiSolverRef s);
+
+char* kiwi_solver_dumps(KiwiSolverRef s, void* (*alloc)(size_t));
+
+KiwiSolverRef kiwi_solver_new();
+void kiwi_solver_del(KiwiSolverRef s);
+// LuaJIT end
+
+#ifdef __cplusplus
+}
+#endif
+
+// Local Variables:
+// mode: c++
+// End:
+#endif  // CKIWI_H_