Gwion coverage report

GCC Code Coverage Report

Directory:	src/		Exec	Total	Coverage
File:	src/lib/object_op.c	Lines:	297	315	94.3 %
Date:	2020-08-07 19:15:19	Branches:	153	186	82.3 %


#include <stdlib.h>
#include <string.h>
#include "gwion_util.h"
#include "gwion_ast.h"
#include "gwion_env.h"
#include "vm.h"
#include "gwion.h"
#include "instr.h"
#include "object.h"
#include "operator.h"
#include "import.h"
#include "emit.h"
#include "traverse.h"
#include "template.h"
#include "parse.h"
#include "specialid.h"

#include "gwi.h"

#undef insert_symbol

#define describe_logical(name, op)               \
static INSTR(name##Object) {                     \
  POP_REG(shred, SZ_INT);                        \
  const M_Object lhs = *(M_Object*)REG(-SZ_INT); \
  const M_Object rhs = *(M_Object*)REG(0);       \
  *(m_uint*)REG(-SZ_INT) = (lhs op rhs);         \
  release(lhs, shred);                           \
  release(rhs, shred);                           \
}

describe_logical(Eq,  ==)
describe_logical(Neq, !=)
static inline m_bool nonnull_check(const Type l, const Type r) {
  return !GET_FLAG(l, nonnull) && GET_FLAG(r, nonnull);
}

static inline Type check_nonnull(const Env env, const Type l, const Type r,
      const m_str action, const loc_t pos) {
  if(GET_FLAG(r, nonnull)) {
    if(isa(l, env->gwion->type[et_null]) > 0)
      ERR_N(pos, _("can't %s '%s' to '%s'"), action, l->name, r->name);
    if(isa(l, r) < 0)
      ERR_N(pos, _("can't %s '%s' to '%s'"), action, l->name, r->name);
    return r->e->parent;
  }
  if(l != env->gwion->type[et_null] && isa(l, r) < 0)
    ERR_N(pos, _("can't %s '%s' to '%s'"), action, l->name, r->name);
  return r;
}

static OP_CHECK(at_object) {
  const Exp_Binary* bin = (Exp_Binary*)data;
  const Type l = bin->lhs->info->type;
  const Type r = bin->rhs->info->type;
  if(opck_rassign(env, data, mut) == env->gwion->type[et_null])
    return env->gwion->type[et_null];
  if(check_nonnull(env, l, r, "assign", exp_self(bin)->pos) == env->gwion->type[et_null])
    return env->gwion->type[et_null];
  if(bin->rhs->exp_type == ae_exp_decl) {
    SET_FLAG(bin->rhs->d.exp_decl.td, ref);
    SET_FLAG(bin->rhs->d.exp_decl.list->self->value, ref);
  }
  exp_setvar(bin->rhs, 1);
  return r;
}

static OP_EMIT(opem_at_object) {
  const Exp_Binary* bin = (Exp_Binary*)data;
  const Type l = bin->lhs->info->type;
  const Type r = bin->rhs->info->type;
  if(nonnull_check(l, r)) {
    const Instr instr = emit_add_instr(emit, GWOP_EXCEPT);
    instr->m_val = SZ_INT;
  }
  return emit_add_instr(emit, ObjectAssign);
}

static OP_CHECK(opck_object_cast) {
  const Exp_Cast* cast = (Exp_Cast*)data;
  const Type l = cast->exp->info->type;
  const Type r = exp_self(cast)->info->type;
  if(check_nonnull(env, l, r, "cast", exp_self(cast)->pos) == env->gwion->type[et_null])
    return env->gwion->type[et_null];
  return force_type(env, r);
}

static OP_EMIT(opem_object_cast) {
  const Exp_Cast* cast = (Exp_Cast*)data;
  const Type l = cast->exp->info->type;
  const Type r = exp_self(cast)->info->type;
  if(nonnull_check(l, r))
    emit_add_instr(emit, GWOP_EXCEPT);
  return (Instr)GW_OK;
}

static OP_CHECK(opck_implicit_null2obj) {
  const struct Implicit* imp = (struct Implicit*)data;
  const Type l = imp->e->info->type;
  const Type r = imp->t;
  if(check_nonnull(env, l, r, "implicitly cast", imp->e->pos) == env->gwion->type[et_null])
    return env->gwion->type[et_null];
  imp->e->info->cast_to = r;
  return imp->t;
}

static OP_EMIT(opem_implicit_null2obj) {
  const struct Implicit* imp = (struct Implicit*)data;
  const Type l = imp->e->info->type;
  const Type r = imp->t;
  if(nonnull_check(l, r))
    emit_add_instr(emit, GWOP_EXCEPT);
  return (Instr)GW_OK;
}

ANN /*static*/ Type scan_class(const Env env, const Type t, const Type_Decl* td);

static Type opck_object_scan(const Env env, const struct TemplateScan *ts) {
  if(ts->td->types)
    return scan_class(env, ts->t, ts->td) ?: env->gwion->type[et_null];
  ERR_N(td_pos(ts->td), _("you must provide template types for type '%s'"), ts->t->name)
}

static OP_CHECK(opck_struct_scan) {
  struct TemplateScan *ts = (struct TemplateScan*)data;
  return opck_object_scan(env, ts);
}

static const f_instr dotstatic[]  = { DotStatic, DotStatic2, DotStatic3, RegPushImm };
static const f_instr structmember[]  = { StructMember, StructMemberFloat, StructMemberOther, StructMemberAddr };

ANN Instr emit_kind(Emitter emit, const m_uint size, const uint addr, const f_instr func[]);
ANN static void emit_dot_static_data(const Emitter emit, const Value v, const uint emit_var) {
  const m_uint size = v->type->size;
  const Instr instr = emit_kind(emit, size, emit_var, dotstatic);
  instr->m_val = (m_uint)(v->from->owner->info->class_data + v->from->offset);
  instr->m_val2 = size;
}

static const f_instr regpushimm[] = { RegPushImm, RegPushImm2, RegPushImm3, RegPushImm4 };
ANN static void emit_dot_static_import_data(const Emitter emit, const Value v, const uint emit_addr) {
  if(v->d.ptr && GET_FLAG(v, builtin) && GET_FLAG(v, const)) {
    const m_uint size = v->type->size;
    const Instr instr = emit_kind(emit, size, emit_addr, regpushimm);
    instr->m_val = (m_uint)v->d.ptr;
    instr->m_val2 = size;
  } else
    emit_dot_static_data(emit, v, emit_addr);
}
static const f_instr dotmember[]  = { DotMember, DotMember2, DotMember3, DotMember4 };

ANN static void emit_member_func(const Emitter emit, const Exp_Dot* member) {
  const Func f = exp_self(member)->info->type->e->d.func;
  if(f->def->base->tmpl)
    emit_add_instr(emit, DotTmplVal);
else
  if(is_class(emit->gwion, member->t_base) || GET_FLAG(member->base->info->type, force)) {
    const Instr func_i = emit_add_instr(emit, f->code ? RegPushImm : SetFunc);
    func_i->m_val = (m_uint)f->code ?: (m_uint)f;
    return;
  }
//  if(f->def->base->tmpl)
//    emit_add_instr(emit, DotTmplVal);
  else {
    if(GET_FLAG(member->t_base, struct)) {
      if(!GET_FLAG(f->def, static)) {
        exp_setvar(member->base, 1);
        emit_exp(emit, member->base);
      }
    const Instr func_i = emit_add_instr(emit, f->code ? RegPushImm : SetFunc);
    func_i->m_val = (m_uint)f->code ?: (m_uint)f;
      return;
    }
    const Instr instr = emit_add_instr(emit, GET_FLAG(f, member) ? DotFunc : DotStaticFunc);
    instr->m_val = f->vt_index;
  }
  return;
}

ANN static inline void emit_member(const Emitter emit, const Value v, const uint emit_addr) {
  const m_uint size = v->type->size;
  const Instr instr = emit_kind(emit, size, emit_addr, dotmember);
  instr->m_val = v->from->offset;
  instr->m_val2 = size;
}

ANN static inline void emit_struct_addr(const Emitter emit, const Value v) {
  const Instr set = emit_add_instr(emit, StructMemberAddr);
  set->m_val = v->from->offset;
}

ANN static inline void emit_struct_var(const Emitter emit, const Value v) {
  for(m_uint i = 0; i < v->type->size; i += SZ_INT) {
    const Instr set = emit_add_instr(emit, Reg2Reg);
    set->m_val2 = -v->type->size + i;
    set->m_val = -v->type->size + v->from->offset + i;
  }
}

ANN static inline void emit_struct_data(const Emitter emit, const Value v, const uint emit_addr) {
  const Instr instr = emit_kind(emit, v->type->size, emit_addr, structmember);
  instr->m_val = v->from->offset;
  if(!emit_addr) {
    const Instr instr = emit_add_instr(emit, RegPush);
    instr->m_val = v->type->size -SZ_INT;
  }
}

ANN m_bool not_from_owner_class(const Env env, const Type t, const Value v, const loc_t pos);
OP_CHECK(opck_object_dot) {
  const Exp_Dot *member = (Exp_Dot*)data;
  const m_str str = s_name(member->xid);
  const m_bool base_static = is_class(env->gwion, member->t_base);
  const Type the_base = base_static ? member->t_base->e->d.base_type : member->t_base;
  if(!the_base->nspc)
    ERR_O(member->base->pos,
          _("type '%s' does not have members - invalid use in dot expression of %s"),
          the_base->name, str)
  if(member->xid ==  insert_symbol(env->gwion->st, "this") && base_static)
    ERR_O(exp_self(member)->pos,
          _("keyword 'this' must be associated with object instance..."))
  const Value value = find_value(the_base, member->xid);
  if(!value) {
    env_err(env, exp_self(member)->pos,
          _("class '%s' has no member '%s'"), the_base->name, str);
    if(member->t_base->nspc)
      did_you_mean_type(the_base, str);
    return NULL;
  }
  CHECK_BO(not_from_owner_class(env, the_base, value, exp_self(member)->pos))
  if(!env->class_def || isa(env->class_def, value->from->owner_class) < 0) {
    if(GET_FLAG(value, private))
      ERR_O(exp_self(member)->pos,
          _("can't access private '%s' outside of class..."), value->name)
    else if(GET_FLAG(value, protect))
      exp_setprot(exp_self(member), 1);
  }
  if(base_static && GET_FLAG(value, member))
    ERR_O(exp_self(member)->pos,
          _("cannot access member '%s.%s' without object instance..."),
          the_base->name, str)
  if(GET_FLAG(value, const))
    exp_setmeta(exp_self(member), 1);
  return value->type;
}

OP_EMIT(opem_object_dot) {
  const Exp_Dot *member = (Exp_Dot*)data;
  const Type t_base = actual_type(emit->gwion, member->t_base);
  const Value value = find_value(t_base, member->xid);
  if(!is_class(emit->gwion, member->t_base) && (GET_FLAG(value, member) ||
       (isa(exp_self(member)->info->type, emit->gwion->type[et_function]) > 0 &&
       !is_fptr(emit->gwion, exp_self(member)->info->type)))) {
    if(!GET_FLAG(t_base, struct))
      CHECK_BO(emit_exp(emit, member->base))
    if(isa(member->t_base, emit->env->gwion->type[et_object]) > 0)
      emit_except(emit, member->t_base);
  }
  if(isa(exp_self(member)->info->type, emit->gwion->type[et_function]) > 0 && !is_fptr(emit->gwion, exp_self(member)->info->type))
	  emit_member_func(emit, member);
  else if(GET_FLAG(value, member)) {
    if(!GET_FLAG(t_base, struct))
      emit_member(emit, value, exp_getvar(exp_self(member)));
    else {
//      exp_setvar(member->base, exp_getvar(exp_self(member)));
      exp_setvar(member->base, 1);
      CHECK_BO(emit_exp(emit, member->base))
      emit_struct_data(emit, value, exp_getvar(exp_self(member)));
    }
  } else if(GET_FLAG(value, static))
    emit_dot_static_import_data(emit, value, exp_getvar(exp_self(member)));
  else { // member type
    const Instr instr = emit_add_instr(emit, RegPushImm);
    instr->m_val = (m_uint)value->type;
  }
  return (Instr)GW_OK;
}

struct tmpl_info {
  const  Class_Def cdef;
  Type_List        call;
  struct Vector_   type;
  struct Vector_   size;
  uint8_t index;
};

ANN static inline size_t tmpl_set(struct tmpl_info* info, const Type t) {
  vector_add(&info->type, (vtype)t);
  const size_t len = strlen(t->name);
  vector_add(&info->size, len);
  return len;
}

ANN static ssize_t template_size(const Env env, struct tmpl_info* info) {
  ID_List base = info->cdef->base.tmpl->list;
  Type_List call = info->call;
  size_t size = 0;
  do {
    DECL_OB(const Type, t, = known_type(env, call->td))
    size += tmpl_set(info, t);
  } while((call = call->next) && (base = base->next) && ++size);
  size += tmpl_set(info, info->cdef->base.type);
  return size + 16 + 3;
}

ANN static inline m_str tmpl_get(struct tmpl_info* info, m_str str) {
  const Type t = (Type)vector_at(&info->type, info->index);
  strcpy(str, t->name);
  return str += vector_at(&info->size, info->index);
}

ANN static void template_name(struct tmpl_info* info, m_str s) {
  m_str str = s;
  *str++ = '<';
  *str++ = '~';
  const m_uint size = vector_size(&info->type) -1;
  for(info->index = 0; info->index < size; ++info->index) {
    str = tmpl_get(info, str);
    if(info->index < size - 1)
      *str++ = ',';
    else {
      *str++ = '~';
      *str++ = '>';
    }
  }
  str = tmpl_get(info, str);
  *str = '\0';
}

ANEW ANN static Symbol template_id(const Env env, const Class_Def c, const Type_List call) {
  struct tmpl_info info = { .cdef=c, .call=call };
  vector_init(&info.type);
  vector_init(&info.size);
  ssize_t sz = template_size(env, &info);
  char name[sz];
  if(sz > GW_ERROR)
    template_name(&info, name);
  vector_release(&info.type);
  vector_release(&info.size);
  return sz > GW_ERROR ? insert_symbol(env->gwion->st, name) : NULL;
}

ANN static m_bool template_match(ID_List base, Type_List call) {
  while((call = call->next) && (base = base->next));
  return !call ? GW_OK : GW_ERROR;
}

ANN static Class_Def template_class(const Env env, const Class_Def def, const Type_List call) {
  DECL_OO(const Symbol, name, = template_id(env, def, call))
  if(env->class_def && name == insert_symbol(env->gwion->st, env->class_def->name))
     return env->class_def->e->def;
  const Type t = nspc_lookup_type1(env->curr, name);
  if(t)
    return t->e->def;
  const Class_Def c = cpy_class_def(env->gwion->mp, def);
  c->base.xid = name;
  SET_FLAG(c, template | ae_flag_ref);
  UNSET_FLAG(c, scan0 | ae_flag_scan1 | ae_flag_scan2 |
    ae_flag_check | ae_flag_emit | ae_flag_valid);
  return c;
}

ANN static m_bool class2udef(const Env env, const Class_Def a, const Type t) {
  a->union_def = new_union_def(env->gwion->mp, cpy_decl_list(env->gwion->mp, a->list),
    loc_cpy(env->gwion->mp, t->e->def->pos));
  a->union_def->type_xid = a->base.xid;
  if(GET_FLAG(t, global))
    SET_FLAG(a->union_def, global);
  CHECK_BB(scan0_union_def(env, a->union_def))
  a->base.type = a->union_def->type;
  a->base.type->e->def = a;
  a->union_def->tmpl = cpy_tmpl(env->gwion->mp, a->base.tmpl);
  return GW_OK;
}

ANN static m_bool _scan_class(const Env env, const Type t, const Class_Def a) {
  if(t->e->parent !=  env->gwion->type[et_union])
    CHECK_BB(scan0_class_def(env, a))
  else
    CHECK_BB(class2udef(env, a, t))
  SET_FLAG(a->base.type, template);
  if(GET_FLAG(t, builtin))
    SET_FLAG(a->base.type, builtin);
  return GW_OK;
}

ANN Type scan_class(const Env env, const Type t, const Type_Decl* td) {
  if(template_match(t->e->def->base.tmpl->list, td->types) < 0)
   ERR_O(td->pos, _("invalid template types number"))
  DECL_OO(const Class_Def, a, = template_class(env, t->e->def, td->types))
  if(a->base.type)
    return a->base.type;
  struct EnvSet es = { .env=env, .data=env, .func=(_exp_func)scan0_cdef,
    .scope=env->scope->depth, .flag=ae_flag_scan0 };
//  CHECK_BO(envset_push(&es, t->e->owner_class, env->context ? env->context->nspc : env->curr))
  CHECK_BO(envset_push(&es, t->e->owner_class, t->e->ctx ? t->e->ctx->nspc : env->curr))
  a->base.tmpl = mk_tmpl(env, t->e->def->base.tmpl, td->types);
  const m_bool ret = _scan_class(env, t, a);
  if(es.run)
    envset_pop(&es, t->e->owner_class);
  if(ret > 0)
    return a->base.type;
  if(!a->base.type)
    free_class_def(env->gwion->mp, a);
  return NULL;
}

ANN static inline Symbol dot_symbol(SymTable *st, const Value v) {
  const m_str name = !GET_FLAG(v, static) ? "this" : v->from->owner_class->name;
  return insert_symbol(st, name);
}

ANN Exp symbol_owned_exp(const Gwion gwion, const Symbol *data) {
  const Value v = prim_self(data)->value;
  const Exp base = new_prim_id(gwion->mp, dot_symbol(gwion->st, v), loc_cpy(gwion->mp, prim_pos(data)));
  const Exp dot = new_exp_dot(gwion->mp, base, *data);
  const Type owner = v->from->owner_class;
  dot->d.exp_dot.t_base = dot->d.exp_dot.base->info->type = !GET_FLAG(v, static) ?
    owner : type_class(gwion, owner);
  dot->info->type = prim_exp(data)->info->type;
  exp_setvar(dot, exp_getvar(prim_exp(data)));
  return dot;
}

ANN void struct_release(const VM_Shred shred, const Type base, const m_bit *ptr) {
  const Vector types   = &base->e->tuple->types;
  const Vector offsets = &base->e->tuple->offset;
  for(m_uint i = 0; i < vector_size(types); ++i) {
    const Type t = (Type)vector_at(types, i);
    if(isa(t, shred->info->vm->gwion->type[et_compound]) < 0)
      continue;
    const m_uint offset = vector_at(offsets, i);
    if(!GET_FLAG(t, struct))
      release(*(M_Object*)(ptr + offset), shred);
    else
      struct_release(shred, t, *(m_bit**)(ptr + offset));
  }
}

GWION_IMPORT(object_op) {
  const Type t_null  = gwi_mk_type(gwi, "@null",  SZ_INT, "Object");
  gwi->gwion->type[et_null] = t_null;
  GWI_BB(gwi_set_global_type(gwi, t_null, et_null))
  GWI_BB(gwi_oper_cond(gwi, "Object", BranchEqInt, BranchNeqInt))
  GWI_BB(gwi_oper_ini(gwi, "Object", "Object", NULL))
  GWI_BB(gwi_oper_add(gwi, at_object))
  GWI_BB(gwi_oper_emi(gwi, opem_at_object))
  GWI_BB(gwi_oper_end(gwi, "@=>", ObjectAssign))
  GWI_BB(gwi_oper_ini(gwi, "Object", "Object", "int"))
  GWI_BB(gwi_oper_end(gwi, "==",  EqObject))
  GWI_BB(gwi_oper_end(gwi, "!=", NeqObject))
  GWI_BB(gwi_oper_add(gwi, opck_object_cast))
  GWI_BB(gwi_oper_emi(gwi, opem_object_cast))
  GWI_BB(gwi_oper_end(gwi, "$", NULL))
  GWI_BB(gwi_oper_add(gwi, opck_implicit_null2obj))
  GWI_BB(gwi_oper_emi(gwi, opem_implicit_null2obj))
  GWI_BB(gwi_oper_end(gwi, "@implicit", NULL))
  GWI_BB(gwi_oper_ini(gwi, "@null", "Object", "int"))
  GWI_BB(gwi_oper_add(gwi, opck_implicit_null2obj))
  GWI_BB(gwi_oper_end(gwi, "@implicit", NULL))
  GWI_BB(gwi_oper_ini(gwi, NULL, "Object", "bool"))
  GWI_BB(gwi_oper_add(gwi, opck_unary_meta2))
  GWI_BB(gwi_oper_end(gwi, "!", IntNot))
  GWI_BB(gwi_oper_ini(gwi, "@Compound", NULL, NULL))
  GWI_BB(gwi_oper_add(gwi, opck_struct_scan))
  GWI_BB(gwi_oper_end(gwi, "@scan", NULL))
  gwi_item_ini(gwi, "@null", "null");
  gwi_item_end(gwi, 0, NULL);
  return GW_OK;
}


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#include <stdlib.h>
2			#include <string.h>
3			#include "gwion_util.h"
4			#include "gwion_ast.h"
5			#include "gwion_env.h"
6			#include "vm.h"
7			#include "gwion.h"
8			#include "instr.h"
9			#include "object.h"
10			#include "operator.h"
11			#include "import.h"
12			#include "emit.h"
13			#include "traverse.h"
14			#include "template.h"
15			#include "parse.h"
16			#include "specialid.h"
17
18			#include "gwi.h"
19
20			#undef insert_symbol
21
22			#define describe_logical(name, op) \
23			static INSTR(name##Object) { \
24			POP_REG(shred, SZ_INT); \
25			const M_Object lhs = (M_Object)REG(-SZ_INT); \
26			const M_Object rhs = (M_Object)REG(0); \
27			(m_uint)REG(-SZ_INT) = (lhs op rhs); \
28			release(lhs, shred); \
29			release(rhs, shred); \
30			}
31
32		1	describe_logical(Eq, ==)
33		1	describe_logical(Neq, !=)
34		48	static inline m_bool nonnull_check(const Type l, const Type r) {
35	✓✓✓✓	48	return !GET_FLAG(l, nonnull) && GET_FLAG(r, nonnull);
36			}
37
38		62	static inline Type check_nonnull(const Env env, const Type l, const Type r,
39			const m_str action, const loc_t pos) {
40	✓✓	62	if(GET_FLAG(r, nonnull)) {
41	✓✓	20	if(isa(l, env->gwion->type[et_null]) > 0)
42		4	ERR_N(pos, _("can't %s '%s' to '%s'"), action, l->name, r->name);
43	✓✓	16	if(isa(l, r) < 0)
44		1	ERR_N(pos, _("can't %s '%s' to '%s'"), action, l->name, r->name);
45		15	return r->e->parent;
46			}
47	✓✓✓✓	42	if(l != env->gwion->type[et_null] && isa(l, r) < 0)
48		4	ERR_N(pos, _("can't %s '%s' to '%s'"), action, l->name, r->name);
49		38	return r;
50			}
51
52		31	static OP_CHECK(at_object) {
53		31	const Exp_Binary* bin = (Exp_Binary*)data;
54		31	const Type l = bin->lhs->info->type;
55		31	const Type r = bin->rhs->info->type;
56	✗✓	31	if(opck_rassign(env, data, mut) == env->gwion->type[et_null])
57			return env->gwion->type[et_null];
58	✓✓	31	if(check_nonnull(env, l, r, "assign", exp_self(bin)->pos) == env->gwion->type[et_null])
59		2	return env->gwion->type[et_null];
60	✓✓	29	if(bin->rhs->exp_type == ae_exp_decl) {
61		21	SET_FLAG(bin->rhs->d.exp_decl.td, ref);
62		21	SET_FLAG(bin->rhs->d.exp_decl.list->self->value, ref);
63			}
64		29	exp_setvar(bin->rhs, 1);
65		29	return r;
66			}
67
68		29	static OP_EMIT(opem_at_object) {
69		29	const Exp_Binary* bin = (Exp_Binary*)data;
70		29	const Type l = bin->lhs->info->type;
71		29	const Type r = bin->rhs->info->type;
72	✓✓	29	if(nonnull_check(l, r)) {
73		5	const Instr instr = emit_add_instr(emit, GWOP_EXCEPT);
74		5	instr->m_val = SZ_INT;
75			}
76		29	return emit_add_instr(emit, ObjectAssign);
77			}
78
79		12	static OP_CHECK(opck_object_cast) {
80		12	const Exp_Cast* cast = (Exp_Cast*)data;
81		12	const Type l = cast->exp->info->type;
82		12	const Type r = exp_self(cast)->info->type;
83	✓✓	12	if(check_nonnull(env, l, r, "cast", exp_self(cast)->pos) == env->gwion->type[et_null])
84		4	return env->gwion->type[et_null];
85		8	return force_type(env, r);
86			}
87
88		8	static OP_EMIT(opem_object_cast) {
89		8	const Exp_Cast* cast = (Exp_Cast*)data;
90		8	const Type l = cast->exp->info->type;
91		8	const Type r = exp_self(cast)->info->type;
92	✓✓	8	if(nonnull_check(l, r))
93		4	emit_add_instr(emit, GWOP_EXCEPT);
94		8	return (Instr)GW_OK;
95			}
96
97		19	static OP_CHECK(opck_implicit_null2obj) {
98		19	const struct Implicit* imp = (struct Implicit*)data;
99		19	const Type l = imp->e->info->type;
100		19	const Type r = imp->t;
101	✓✓	19	if(check_nonnull(env, l, r, "implicitly cast", imp->e->pos) == env->gwion->type[et_null])
102		3	return env->gwion->type[et_null];
103		16	imp->e->info->cast_to = r;
104		16	return imp->t;
105			}
106
107		11	static OP_EMIT(opem_implicit_null2obj) {
108		11	const struct Implicit* imp = (struct Implicit*)data;
109		11	const Type l = imp->e->info->type;
110		11	const Type r = imp->t;
111	✓✓	11	if(nonnull_check(l, r))
112		3	emit_add_instr(emit, GWOP_EXCEPT);
113		11	return (Instr)GW_OK;
114			}
115
116			ANN /static/ Type scan_class(const Env env, const Type t, const Type_Decl* td);
117
118		43	static Type opck_object_scan(const Env env, const struct TemplateScan *ts) {
119	✓✓	43	if(ts->td->types)
120	✓✓	42	return scan_class(env, ts->t, ts->td) ?: env->gwion->type[et_null];
121		1	ERR_N(td_pos(ts->td), _("you must provide template types for type '%s'"), ts->t->name)
122			}
123
124		43	static OP_CHECK(opck_struct_scan) {
125		43	struct TemplateScan ts = (struct TemplateScan)data;
126		43	return opck_object_scan(env, ts);
127			}
128
129			static const f_instr dotstatic[] = { DotStatic, DotStatic2, DotStatic3, RegPushImm };
130			static const f_instr structmember[] = { StructMember, StructMemberFloat, StructMemberOther, StructMemberAddr };
131
132			ANN Instr emit_kind(Emitter emit, const m_uint size, const uint addr, const f_instr func[]);
133		39	ANN static void emit_dot_static_data(const Emitter emit, const Value v, const uint emit_var) {
134		39	const m_uint size = v->type->size;
135		39	const Instr instr = emit_kind(emit, size, emit_var, dotstatic);
136		39	instr->m_val = (m_uint)(v->from->owner->info->class_data + v->from->offset);
137		39	instr->m_val2 = size;
138		39	}
139
140			static const f_instr regpushimm[] = { RegPushImm, RegPushImm2, RegPushImm3, RegPushImm4 };
141		59	ANN static void emit_dot_static_import_data(const Emitter emit, const Value v, const uint emit_addr) {
142	✓✓✓✗ ✓✓	79	if(v->d.ptr && GET_FLAG(v, builtin) && GET_FLAG(v, const)) {
143		20	const m_uint size = v->type->size;
144		20	const Instr instr = emit_kind(emit, size, emit_addr, regpushimm);
145		20	instr->m_val = (m_uint)v->d.ptr;
146		20	instr->m_val2 = size;
147			} else
148		39	emit_dot_static_data(emit, v, emit_addr);
149		59	}
150			static const f_instr dotmember[] = { DotMember, DotMember2, DotMember3, DotMember4 };
151
152		290	ANN static void emit_member_func(const Emitter emit, const Exp_Dot* member) {
153		290	const Func f = exp_self(member)->info->type->e->d.func;
154	✓✓	290	if(f->def->base->tmpl)
155		36	emit_add_instr(emit, DotTmplVal);
156			else
157	✓✓✗✓	254	if(is_class(emit->gwion, member->t_base) \|\| GET_FLAG(member->base->info->type, force)) {
158	✓✓	33	const Instr func_i = emit_add_instr(emit, f->code ? RegPushImm : SetFunc);
159	✓✓	33	func_i->m_val = (m_uint)f->code ?: (m_uint)f;
160		33	return;
161			}
162			// if(f->def->base->tmpl)
163			// emit_add_instr(emit, DotTmplVal);
164			else {
165	✓✓	221	if(GET_FLAG(member->t_base, struct)) {
166	✓✓	4	if(!GET_FLAG(f->def, static)) {
167		3	exp_setvar(member->base, 1);
168		3	emit_exp(emit, member->base);
169			}
170	✗✓	4	const Instr func_i = emit_add_instr(emit, f->code ? RegPushImm : SetFunc);
171	✓✗	4	func_i->m_val = (m_uint)f->code ?: (m_uint)f;
172		4	return;
173			}
174	✓✓	217	const Instr instr = emit_add_instr(emit, GET_FLAG(f, member) ? DotFunc : DotStaticFunc);
175		217	instr->m_val = f->vt_index;
176			}
177		253	return;
178			}
179
180		163	ANN static inline void emit_member(const Emitter emit, const Value v, const uint emit_addr) {
181		163	const m_uint size = v->type->size;
182		163	const Instr instr = emit_kind(emit, size, emit_addr, dotmember);
183		163	instr->m_val = v->from->offset;
184		163	instr->m_val2 = size;
185		163	}
186
187			ANN static inline void emit_struct_addr(const Emitter emit, const Value v) {
188			const Instr set = emit_add_instr(emit, StructMemberAddr);
189			set->m_val = v->from->offset;
190			}
191
192			ANN static inline void emit_struct_var(const Emitter emit, const Value v) {
193			for(m_uint i = 0; i < v->type->size; i += SZ_INT) {
194			const Instr set = emit_add_instr(emit, Reg2Reg);
195			set->m_val2 = -v->type->size + i;
196			set->m_val = -v->type->size + v->from->offset + i;
197			}
198			}
199
200		14	ANN static inline void emit_struct_data(const Emitter emit, const Value v, const uint emit_addr) {
201		14	const Instr instr = emit_kind(emit, v->type->size, emit_addr, structmember);
202		14	instr->m_val = v->from->offset;
203	✓✓	14	if(!emit_addr) {
204		10	const Instr instr = emit_add_instr(emit, RegPush);
205		10	instr->m_val = v->type->size -SZ_INT;
206			}
207		14	}
208
209			ANN m_bool not_from_owner_class(const Env env, const Type t, const Value v, const loc_t pos);
210		717	OP_CHECK(opck_object_dot) {
211		717	const Exp_Dot member = (Exp_Dot)data;
212		717	const m_str str = s_name(member->xid);
213		717	const m_bool base_static = is_class(env->gwion, member->t_base);
214	✓✓	717	const Type the_base = base_static ? member->t_base->e->d.base_type : member->t_base;
215	✓✓	717	if(!the_base->nspc)
216		1	ERR_O(member->base->pos,
217			_("type '%s' does not have members - invalid use in dot expression of %s"),
218			the_base->name, str)
219	✓✓✓✗	716	if(member->xid == insert_symbol(env->gwion->st, "this") && base_static)
220		2	ERR_O(exp_self(member)->pos,
221			_("keyword 'this' must be associated with object instance..."))
222		714	const Value value = find_value(the_base, member->xid);
223	✓✓	714	if(!value) {
224		31	env_err(env, exp_self(member)->pos,
225			_("class '%s' has no member '%s'"), the_base->name, str);
226	✓✓	31	if(member->t_base->nspc)
227	✓✗	30	did_you_mean_type(the_base, str);
228		31	return NULL;
229			}
230	✗✓	683	CHECK_BO(not_from_owner_class(env, the_base, value, exp_self(member)->pos))
231	✓✓✓✓	683	if(!env->class_def \|\| isa(env->class_def, value->from->owner_class) < 0) {
232	✓✓	499	if(GET_FLAG(value, private))
233		12	ERR_O(exp_self(member)->pos,
234			_("can't access private '%s' outside of class..."), value->name)
235	✓✓	487	else if(GET_FLAG(value, protect))
236		2	exp_setprot(exp_self(member), 1);
237			}
238	✓✓✓✓	671	if(base_static && GET_FLAG(value, member))
239		2	ERR_O(exp_self(member)->pos,
240			_("cannot access member '%s.%s' without object instance..."),
241			the_base->name, str)
242	✓✓	669	if(GET_FLAG(value, const))
243		440	exp_setmeta(exp_self(member), 1);
244		669	return value->type;
245			}
246
247		526	OP_EMIT(opem_object_dot) {
248		526	const Exp_Dot member = (Exp_Dot)data;
249		526	const Type t_base = actual_type(emit->gwion, member->t_base);
250		526	const Value value = find_value(t_base, member->xid);
251	✓✓✓✓ ✓✓	537	if(!is_class(emit->gwion, member->t_base) && (GET_FLAG(value, member) \|\|
252	✓✗	18	(isa(exp_self(member)->info->type, emit->gwion->type[et_function]) > 0 &&
253		7	!is_fptr(emit->gwion, exp_self(member)->info->type)))) {
254	✓✓	432	if(!GET_FLAG(t_base, struct))
255	✗✓	414	CHECK_BO(emit_exp(emit, member->base))
256	✓✓	432	if(isa(member->t_base, emit->env->gwion->type[et_object]) > 0)
257		414	emit_except(emit, member->t_base);
258			}
259	✓✓✓✓	526	if(isa(exp_self(member)->info->type, emit->gwion->type[et_function]) > 0 && !is_fptr(emit->gwion, exp_self(member)->info->type))
260		290	emit_member_func(emit, member);
261	✓✓	236	else if(GET_FLAG(value, member)) {
262	✓✓	177	if(!GET_FLAG(t_base, struct))
263		163	emit_member(emit, value, exp_getvar(exp_self(member)));
264			else {
265			// exp_setvar(member->base, exp_getvar(exp_self(member)));
266		14	exp_setvar(member->base, 1);
267	✗✓	14	CHECK_BO(emit_exp(emit, member->base))
268		14	emit_struct_data(emit, value, exp_getvar(exp_self(member)));
269			}
270	✓✗	59	} else if(GET_FLAG(value, static))
271		59	emit_dot_static_import_data(emit, value, exp_getvar(exp_self(member)));
272			else { // member type
273			const Instr instr = emit_add_instr(emit, RegPushImm);
274			instr->m_val = (m_uint)value->type;
275			}
276		526	return (Instr)GW_OK;
277			}
278
279			struct tmpl_info {
280			const Class_Def cdef;
281			Type_List call;
282			struct Vector_ type;
283			struct Vector_ size;
284			uint8_t index;
285			};
286
287		144	ANN static inline size_t tmpl_set(struct tmpl_info* info, const Type t) {
288		144	vector_add(&info->type, (vtype)t);
289		144	const size_t len = strlen(t->name);
290		144	vector_add(&info->size, len);
291		144	return len;
292			}
293
294		67	ANN static ssize_t template_size(const Env env, struct tmpl_info* info) {
295		67	ID_List base = info->cdef->base.tmpl->list;
296		67	Type_List call = info->call;
297		67	size_t size = 0;
298			do {
299	✗✓	77	DECL_OB(const Type, t, = known_type(env, call->td))
300		77	size += tmpl_set(info, t);
301	✓✓✓✗ ✓✗	77	} while((call = call->next) && (base = base->next) && ++size);
302		67	size += tmpl_set(info, info->cdef->base.type);
303		67	return size + 16 + 3;
304			}
305
306		144	ANN static inline m_str tmpl_get(struct tmpl_info* info, m_str str) {
307		144	const Type t = (Type)vector_at(&info->type, info->index);
308		144	strcpy(str, t->name);
309		144	return str += vector_at(&info->size, info->index);
310			}
311
312		67	ANN static void template_name(struct tmpl_info* info, m_str s) {
313		67	m_str str = s;
314		67	*str++ = '<';
315		67	*str++ = '~';
316		67	const m_uint size = vector_size(&info->type) -1;
317	✓✓	144	for(info->index = 0; info->index < size; ++info->index) {
318		77	str = tmpl_get(info, str);
319	✓✓	77	if(info->index < size - 1)
320		10	*str++ = ',';
321			else {
322		67	*str++ = '~';
323		67	*str++ = '>';
324			}
325			}
326		67	str = tmpl_get(info, str);
327		67	*str = '\0';
328		67	}
329
330		67	ANEW ANN static Symbol template_id(const Env env, const Class_Def c, const Type_List call) {
331		67	struct tmpl_info info = { .cdef=c, .call=call };
332		67	vector_init(&info.type);
333		67	vector_init(&info.size);
334		67	ssize_t sz = template_size(env, &info);
335		67	char name[sz];
336	✓✗	67	if(sz > GW_ERROR)
337		67	template_name(&info, name);
338		67	vector_release(&info.type);
339		67	vector_release(&info.size);
340	✓✗	67	return sz > GW_ERROR ? insert_symbol(env->gwion->st, name) : NULL;
341			}
342
343		69	ANN static m_bool template_match(ID_List base, Type_List call) {
344	✓✓✓✓	69	while((call = call->next) && (base = base->next));
345	✓✓	69	return !call ? GW_OK : GW_ERROR;
346			}
347
348		67	ANN static Class_Def template_class(const Env env, const Class_Def def, const Type_List call) {
349	✗✓	67	DECL_OO(const Symbol, name, = template_id(env, def, call))
350	✓✓✓✓	67	if(env->class_def && name == insert_symbol(env->gwion->st, env->class_def->name))
351		1	return env->class_def->e->def;
352		66	const Type t = nspc_lookup_type1(env->curr, name);
353	✓✓	66	if(t)
354		22	return t->e->def;
355		44	const Class_Def c = cpy_class_def(env->gwion->mp, def);
356		44	c->base.xid = name;
357		44	SET_FLAG(c, template \| ae_flag_ref);
358		44	UNSET_FLAG(c, scan0 \| ae_flag_scan1 \| ae_flag_scan2 \|
359			ae_flag_check \| ae_flag_emit \| ae_flag_valid);
360		44	return c;
361			}
362
363		3	ANN static m_bool class2udef(const Env env, const Class_Def a, const Type t) {
364		6	a->union_def = new_union_def(env->gwion->mp, cpy_decl_list(env->gwion->mp, a->list),
365		6	loc_cpy(env->gwion->mp, t->e->def->pos));
366		3	a->union_def->type_xid = a->base.xid;
367	✗✓	3	if(GET_FLAG(t, global))
368			SET_FLAG(a->union_def, global);
369	✗✓	3	CHECK_BB(scan0_union_def(env, a->union_def))
370		3	a->base.type = a->union_def->type;
371		3	a->base.type->e->def = a;
372		3	a->union_def->tmpl = cpy_tmpl(env->gwion->mp, a->base.tmpl);
373		3	return GW_OK;
374			}
375
376		44	ANN static m_bool _scan_class(const Env env, const Type t, const Class_Def a) {
377	✓✓	44	if(t->e->parent != env->gwion->type[et_union])
378	✗✓	41	CHECK_BB(scan0_class_def(env, a))
379			else
380	✗✓	3	CHECK_BB(class2udef(env, a, t))
381		44	SET_FLAG(a->base.type, template);
382	✓✓	44	if(GET_FLAG(t, builtin))
383		18	SET_FLAG(a->base.type, builtin);
384		44	return GW_OK;
385			}
386
387		69	ANN Type scan_class(const Env env, const Type t, const Type_Decl* td) {
388	✓✓	69	if(template_match(t->e->def->base.tmpl->list, td->types) < 0)
389		2	ERR_O(td->pos, _("invalid template types number"))
390	✗✓	67	DECL_OO(const Class_Def, a, = template_class(env, t->e->def, td->types))
391	✓✓	67	if(a->base.type)
392		23	return a->base.type;
393		88	struct EnvSet es = { .env=env, .data=env, .func=(_exp_func)scan0_cdef,
394		44	.scope=env->scope->depth, .flag=ae_flag_scan0 };
395			// CHECK_BO(envset_push(&es, t->e->owner_class, env->context ? env->context->nspc : env->curr))
396	✓✓✗✓	44	CHECK_BO(envset_push(&es, t->e->owner_class, t->e->ctx ? t->e->ctx->nspc : env->curr))
397		44	a->base.tmpl = mk_tmpl(env, t->e->def->base.tmpl, td->types);
398		44	const m_bool ret = _scan_class(env, t, a);
399	✓✓	44	if(es.run)
400		1	envset_pop(&es, t->e->owner_class);
401	✓✗	44	if(ret > 0)
402		44	return a->base.type;
403			if(!a->base.type)
404			free_class_def(env->gwion->mp, a);
405			return NULL;
406			}
407
408		322	ANN static inline Symbol dot_symbol(SymTable *st, const Value v) {
409	✓✓	322	const m_str name = !GET_FLAG(v, static) ? "this" : v->from->owner_class->name;
410		322	return insert_symbol(st, name);
411			}
412
413		322	ANN Exp symbol_owned_exp(const Gwion gwion, const Symbol *data) {
414		322	const Value v = prim_self(data)->value;
415		322	const Exp base = new_prim_id(gwion->mp, dot_symbol(gwion->st, v), loc_cpy(gwion->mp, prim_pos(data)));
416		322	const Exp dot = new_exp_dot(gwion->mp, base, *data);
417		322	const Type owner = v->from->owner_class;
418		644	dot->d.exp_dot.t_base = dot->d.exp_dot.base->info->type = !GET_FLAG(v, static) ?
419	✓✓	322	owner : type_class(gwion, owner);
420		322	dot->info->type = prim_exp(data)->info->type;
421		322	exp_setvar(dot, exp_getvar(prim_exp(data)));
422		322	return dot;
423			}
424
425			ANN void struct_release(const VM_Shred shred, const Type base, const m_bit *ptr) {
426			const Vector types = &base->e->tuple->types;
427			const Vector offsets = &base->e->tuple->offset;
428			for(m_uint i = 0; i < vector_size(types); ++i) {
429			const Type t = (Type)vector_at(types, i);
430			if(isa(t, shred->info->vm->gwion->type[et_compound]) < 0)
431			continue;
432			const m_uint offset = vector_at(offsets, i);
433			if(!GET_FLAG(t, struct))
434			release((M_Object)(ptr + offset), shred);
435			else
436			struct_release(shred, t, (m_bit*)(ptr + offset));
437			}
438			}
439
440		730	GWION_IMPORT(object_op) {
441		730	const Type t_null = gwi_mk_type(gwi, "@null", SZ_INT, "Object");
442		730	gwi->gwion->type[et_null] = t_null;
443		730	GWI_BB(gwi_set_global_type(gwi, t_null, et_null))
444		730	GWI_BB(gwi_oper_cond(gwi, "Object", BranchEqInt, BranchNeqInt))
445		730	GWI_BB(gwi_oper_ini(gwi, "Object", "Object", NULL))
446		730	GWI_BB(gwi_oper_add(gwi, at_object))
447		730	GWI_BB(gwi_oper_emi(gwi, opem_at_object))
448		730	GWI_BB(gwi_oper_end(gwi, "@=>", ObjectAssign))
449		730	GWI_BB(gwi_oper_ini(gwi, "Object", "Object", "int"))
450		730	GWI_BB(gwi_oper_end(gwi, "==", EqObject))
451		730	GWI_BB(gwi_oper_end(gwi, "!=", NeqObject))
452		730	GWI_BB(gwi_oper_add(gwi, opck_object_cast))
453		730	GWI_BB(gwi_oper_emi(gwi, opem_object_cast))
454		730	GWI_BB(gwi_oper_end(gwi, "$", NULL))
455		730	GWI_BB(gwi_oper_add(gwi, opck_implicit_null2obj))
456		730	GWI_BB(gwi_oper_emi(gwi, opem_implicit_null2obj))
457		730	GWI_BB(gwi_oper_end(gwi, "@implicit", NULL))
458		730	GWI_BB(gwi_oper_ini(gwi, "@null", "Object", "int"))
459		730	GWI_BB(gwi_oper_add(gwi, opck_implicit_null2obj))
460		730	GWI_BB(gwi_oper_end(gwi, "@implicit", NULL))
461		730	GWI_BB(gwi_oper_ini(gwi, NULL, "Object", "bool"))
462		730	GWI_BB(gwi_oper_add(gwi, opck_unary_meta2))
463		730	GWI_BB(gwi_oper_end(gwi, "!", IntNot))
464		730	GWI_BB(gwi_oper_ini(gwi, "@Compound", NULL, NULL))
465		730	GWI_BB(gwi_oper_add(gwi, opck_struct_scan))
466		730	GWI_BB(gwi_oper_end(gwi, "@scan", NULL))
467		730	gwi_item_ini(gwi, "@null", "null");
468		730	gwi_item_end(gwi, 0, NULL);
469		730	return GW_OK;
470			}