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patch 9.0.1890: Vim9: lookup code for class/object repaeated

Problem:  Vim9: lookup code for class/object repaeated
Solution: Refactor and make use of lookup functions

closes: #13067

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
This commit is contained in:
Yegappan Lakshmanan
2023-09-10 18:19:06 +02:00
committed by Christian Brabandt
parent 0661033075
commit f36bbcd402
9 changed files with 437 additions and 317 deletions

View File

@@ -269,14 +269,10 @@ object_index_from_itf_index(class_T *itf, int is_method, int idx, class_T *cl,
{
// TODO: Need a table for fast lookup?
char_u *name = itf->class_class_members[idx].ocm_name;
for (int i = 0; i < i2c->i2c_class->class_class_member_count; ++i)
{
ocmember_T *m = &i2c->i2c_class->class_class_members[i];
if (STRCMP(name, m->ocm_name) == 0)
{
return i;
}
}
int m_idx = class_member_idx(i2c->i2c_class, name, 0);
if (m_idx >= 0)
return m_idx;
siemsg("class %s, interface %s, static %s not found",
cl->class_name, itf->class_name, name);
return 0;
@@ -1751,27 +1747,23 @@ class_member_type(
int *member_idx,
ocmember_T **p_m)
{
*member_idx = -1; // not found (yet)
size_t len = name_end - name;
int member_count = is_object ? cl->class_obj_member_count
: cl->class_class_member_count;
ocmember_T *members = is_object ? cl->class_obj_members
: cl->class_class_members;
ocmember_T *m;
for (int i = 0; i < member_count; ++i)
*member_idx = -1; // not found (yet)
m = member_lookup(cl, is_object ? VAR_OBJECT : VAR_CLASS, name, len,
member_idx);
if (m == NULL)
{
ocmember_T *m = members + i;
if (STRNCMP(m->ocm_name, name, len) == 0 && m->ocm_name[len] == NUL)
{
*member_idx = i;
if (p_m != NULL)
*p_m = m;
return m->ocm_type;
}
semsg(_(e_unknown_variable_str), name);
return &t_any;
}
semsg(_(e_unknown_variable_str), name);
return &t_any;
if (p_m != NULL)
*p_m = m;
return m->ocm_type;
}
/*
@@ -1806,41 +1798,34 @@ get_member_tv(
size_t namelen,
typval_T *rettv)
{
int member_count = is_object ? cl->class_obj_member_count
: cl->class_class_member_count;
ocmember_T *members = is_object ? cl->class_obj_members
: cl->class_class_members;
ocmember_T *m;
int m_idx;
for (int i = 0; i < member_count; ++i)
m = member_lookup(cl, is_object ? VAR_OBJECT : VAR_CLASS, name, namelen,
&m_idx);
if (m == NULL)
return FAIL;
if (*name == '_')
{
ocmember_T *m = &members[i];
if (STRNCMP(name, m->ocm_name, namelen) == 0
&& m->ocm_name[namelen] == NUL)
{
if (*name == '_')
{
semsg(_(e_cannot_access_private_member_str), m->ocm_name);
return FAIL;
}
// The object only contains a pointer to the class, the member
// values array follows right after that.
object_T *obj = rettv->vval.v_object;
if (is_object)
{
typval_T *tv = (typval_T *)(obj + 1) + i;
copy_tv(tv, rettv);
}
else
copy_tv(&cl->class_members_tv[i], rettv);
object_unref(obj);
return OK;
}
semsg(_(e_cannot_access_private_member_str), m->ocm_name);
return FAIL;
}
return FAIL;
// The object only contains a pointer to the class, the member
// values array follows right after that.
object_T *obj = rettv->vval.v_object;
if (is_object)
{
typval_T *tv = (typval_T *)(obj + 1) + m_idx;
copy_tv(tv, rettv);
}
else
copy_tv(&cl->class_members_tv[m_idx], rettv);
object_unref(obj);
return OK;
}
/*
@@ -1897,69 +1882,64 @@ class_object_index(
if (*name_end == '(')
{
int on_class = rettv->v_type == VAR_CLASS;
int count = on_class ? cl->class_class_function_count
: cl->class_obj_method_count;
for (int i = 0; i < count; ++i)
ufunc_T *fp;
int m_idx;
fp = method_lookup(cl, rettv->v_type, name, len, &m_idx);
if (fp == NULL)
{
ufunc_T *fp = on_class ? cl->class_class_functions[i]
: cl->class_obj_methods[i];
// Use a separate pointer to avoid that ASAN complains about
// uf_name[] only being 4 characters.
char_u *ufname = (char_u *)fp->uf_name;
if (STRNCMP(name, ufname, len) == 0 && ufname[len] == NUL)
{
typval_T argvars[MAX_FUNC_ARGS + 1];
int argcount = 0;
if (*ufname == '_')
{
// Cannot access a private method outside of a class
semsg(_(e_cannot_access_private_method_str), name);
return FAIL;
}
char_u *argp = name_end;
int ret = get_func_arguments(&argp, evalarg, 0,
argvars, &argcount);
if (ret == FAIL)
return FAIL;
funcexe_T funcexe;
CLEAR_FIELD(funcexe);
funcexe.fe_evaluate = TRUE;
if (rettv->v_type == VAR_OBJECT)
{
funcexe.fe_object = rettv->vval.v_object;
++funcexe.fe_object->obj_refcount;
}
// Clear the class or object after calling the function, in
// case the refcount is one.
typval_T tv_tofree = *rettv;
rettv->v_type = VAR_UNKNOWN;
// Call the user function. Result goes into rettv;
int error = call_user_func_check(fp, argcount, argvars,
rettv, &funcexe, NULL);
// Clear the previous rettv and the arguments.
clear_tv(&tv_tofree);
for (int idx = 0; idx < argcount; ++idx)
clear_tv(&argvars[idx]);
if (error != FCERR_NONE)
{
user_func_error(error, printable_func_name(fp),
funcexe.fe_found_var);
return FAIL;
}
*arg = argp;
return OK;
}
semsg(_(e_method_not_found_on_class_str_str), cl->class_name,
name);
return FAIL;
}
semsg(_(e_method_not_found_on_class_str_str), cl->class_name, name);
typval_T argvars[MAX_FUNC_ARGS + 1];
int argcount = 0;
if (*fp->uf_name == '_')
{
// Cannot access a private method outside of a class
semsg(_(e_cannot_access_private_method_str), name);
return FAIL;
}
char_u *argp = name_end;
int ret = get_func_arguments(&argp, evalarg, 0,
argvars, &argcount);
if (ret == FAIL)
return FAIL;
funcexe_T funcexe;
CLEAR_FIELD(funcexe);
funcexe.fe_evaluate = TRUE;
if (rettv->v_type == VAR_OBJECT)
{
funcexe.fe_object = rettv->vval.v_object;
++funcexe.fe_object->obj_refcount;
}
// Clear the class or object after calling the function, in
// case the refcount is one.
typval_T tv_tofree = *rettv;
rettv->v_type = VAR_UNKNOWN;
// Call the user function. Result goes into rettv;
int error = call_user_func_check(fp, argcount, argvars,
rettv, &funcexe, NULL);
// Clear the previous rettv and the arguments.
clear_tv(&tv_tofree);
for (int idx = 0; idx < argcount; ++idx)
clear_tv(&argvars[idx]);
if (error != FCERR_NONE)
{
user_func_error(error, printable_func_name(fp),
funcexe.fe_found_var);
return FAIL;
}
*arg = argp;
return OK;
}
else if (rettv->v_type == VAR_OBJECT)
@@ -1977,34 +1957,34 @@ class_object_index(
else if (rettv->v_type == VAR_CLASS)
{
int m_idx;
// class member
for (int i = 0; i < cl->class_class_member_count; ++i)
ocmember_T *m = class_member_lookup(cl, name, len, &m_idx);
if (m == NULL)
{
ocmember_T *m = &cl->class_class_members[i];
if (STRNCMP(name, m->ocm_name, len) == 0 && m->ocm_name[len] == NUL)
{
if (*name == '_')
{
semsg(_(e_cannot_access_private_member_str), m->ocm_name);
return FAIL;
}
if ((cl->class_flags & CLASS_INTERFACE) != 0)
{
semsg(_(e_interface_static_direct_access_str),
cl->class_name, m->ocm_name);
return FAIL;
}
typval_T *tv = &cl->class_members_tv[i];
copy_tv(tv, rettv);
class_unref(cl);
*arg = name_end;
return OK;
}
semsg(_(e_member_not_found_on_class_str_str), cl->class_name, name);
return FAIL;
}
semsg(_(e_member_not_found_on_class_str_str), cl->class_name, name);
if (*name == '_')
{
semsg(_(e_cannot_access_private_member_str), m->ocm_name);
return FAIL;
}
if ((cl->class_flags & CLASS_INTERFACE) != 0)
{
semsg(_(e_interface_static_direct_access_str),
cl->class_name, m->ocm_name);
return FAIL;
}
typval_T *tv = &cl->class_members_tv[m_idx];
copy_tv(tv, rettv);
class_unref(cl);
*arg = name_end;
return OK;
}
return FAIL;
@@ -2022,6 +2002,7 @@ find_class_func(char_u **arg)
if (name_end == name || *name_end != '.')
return NULL;
ufunc_T *fp = NULL;
size_t len = name_end - name;
typval_T tv;
tv.v_type = VAR_UNKNOWN;
@@ -2041,82 +2022,191 @@ find_class_func(char_u **arg)
goto fail_after_eval;
len = fname_end - fname;
int count = tv.v_type == VAR_CLASS ? cl->class_class_function_count
: cl->class_obj_method_count;
ufunc_T **funcs = tv.v_type == VAR_CLASS ? cl->class_class_functions
: cl->class_obj_methods;
for (int i = 0; i < count; ++i)
{
ufunc_T *fp = funcs[i];
// Use a separate pointer to avoid that ASAN complains about
// uf_name[] only being 4 characters.
char_u *ufname = (char_u *)fp->uf_name;
if (STRNCMP(fname, ufname, len) == 0 && ufname[len] == NUL)
{
clear_tv(&tv);
return fp;
}
}
int m_idx;
fp = method_lookup(cl, tv.v_type, fname, len, &m_idx);
fail_after_eval:
clear_tv(&tv);
return NULL;
return fp;
}
/*
* If "name[len]" is a class member in cctx->ctx_ufunc->uf_class return the
* index in class.class_class_members[].
* If "cl_ret" is not NULL set it to the class.
* Otherwise return -1;
* Returns the index of class member variable "name" in the class "cl".
* Returns -1, if the variable is not found.
* If "namelen" is zero, then it is assumed that "name" is NUL terminated.
*/
int
class_member_index(char_u *name, size_t len, class_T **cl_ret, cctx_T *cctx)
class_member_idx(class_T *cl, char_u *name, size_t namelen)
{
if (cctx == NULL || cctx->ctx_ufunc == NULL
|| cctx->ctx_ufunc->uf_class == NULL)
return -1;
class_T *cl = cctx->ctx_ufunc->uf_class;
for (int i = 0; i < cl->class_class_member_count; ++i)
{
ocmember_T *m = &cl->class_class_members[i];
if (STRNCMP(name, m->ocm_name, len) == 0 && m->ocm_name[len] == NUL)
if (namelen)
{
if (cl_ret != NULL)
*cl_ret = cl;
return i;
if (STRNCMP(name, m->ocm_name, namelen) == 0
&& m->ocm_name[namelen] == NUL)
return i;
}
else if (STRCMP(name, m->ocm_name) == 0)
return i;
}
return -1;
}
/*
* If "name[len]" is a class method in cctx->ctx_ufunc->uf_class return the
* index in class.class_class_functions[].
* If "cl_ret" is not NULL set it to the class.
* Otherwise return -1.
* Returns a pointer to the class member variable "name" in the class "cl".
* Returns NULL if the variable is not found.
* The member variable index is set in "idx".
*/
ocmember_T *
class_member_lookup(class_T *cl, char_u *name, size_t namelen, int *idx)
{
*idx = class_member_idx(cl, name, namelen);
return *idx >= 0 ? &cl->class_class_members[*idx] : NULL;
}
/*
* Returns the index of class method "name" in the class "cl".
* Returns -1, if the method is not found.
*/
int
class_method_index(char_u *name, size_t len, class_T **cl_ret, cctx_T *cctx)
class_method_idx(class_T *cl, char_u *name, size_t namelen)
{
if (cctx == NULL || cctx->ctx_ufunc == NULL
|| cctx->ctx_ufunc->uf_class == NULL)
return -1;
class_T *cl = cctx->ctx_ufunc->uf_class;
for (int i = 0; i < cl->class_class_function_count; ++i)
{
ufunc_T *fp = cl->class_class_functions[i];
if (STRNCMP(name, fp->uf_name, len) == 0 && fp->uf_name[len] == NUL)
char_u *ufname = (char_u *)fp->uf_name;
if (STRNCMP(name, ufname, namelen) == 0 && ufname[namelen] == NUL)
return i;
}
return -1;
}
/*
* Returns a pointer to the class method "name" in class "cl".
* Returns NULL if the method is not found.
* The method index is set in "idx".
*/
ufunc_T *
class_method_lookup(class_T *cl, char_u *name, size_t namelen, int *idx)
{
*idx = class_method_idx(cl, name, namelen);
return *idx >= 0 ? cl->class_class_functions[*idx] : NULL;
}
/*
* Returns the index of object member variable "name" in the class "cl".
* Returns -1, if the variable is not found.
* If "namelen" is zero, then it is assumed that "name" is NUL terminated.
*/
int
object_member_idx(class_T *cl, char_u *name, size_t namelen)
{
for (int i = 0; i < cl->class_obj_member_count; ++i)
{
ocmember_T *m = &cl->class_obj_members[i];
if (namelen)
{
if (cl_ret != NULL)
*cl_ret = cl;
if (STRNCMP(name, m->ocm_name, namelen) == 0
&& m->ocm_name[namelen] == NUL)
return i;
}
else if (STRCMP(name, m->ocm_name) == 0)
return i;
}
return -1;
}
/*
* Returns a pointer to the object member variable "name" in the class "cl".
* Returns NULL if the variable is not found.
* The object member variable index is set in "idx".
*/
ocmember_T *
object_member_lookup(class_T *cl, char_u *name, size_t namelen, int *idx)
{
*idx = object_member_idx(cl, name, namelen);
return *idx >= 0 ? &cl->class_obj_members[*idx] : NULL;
}
/*
* Returns the index of object method "name" in the class "cl".
* Returns -1, if the method is not found.
*/
int
object_method_idx(class_T *cl, char_u *name, size_t namelen)
{
for (int i = 0; i < cl->class_obj_method_count; ++i)
{
ufunc_T *fp = cl->class_obj_methods[i];
// Use a separate pointer to avoid that ASAN complains about
// uf_name[] only being 4 characters.
char_u *ufname = (char_u *)fp->uf_name;
if (STRNCMP(name, ufname, namelen) == 0 && ufname[namelen] == NUL)
return i;
}
return -1;
}
/*
* Returns a pointer to the object method "name" in class "cl".
* Returns NULL if the method is not found.
* The object method index is set in "idx".
*/
ufunc_T *
object_method_lookup(class_T *cl, char_u *name, size_t namelen, int *idx)
{
*idx = object_method_idx(cl, name, namelen);
return *idx >= 0 ? cl->class_obj_methods[*idx] : NULL;
}
/*
* Lookup a class or object member variable by name. If v_type is VAR_CLASS,
* then lookup a class member variable and if it is VAR_OBJECT, then lookup a
* object member variable.
*
* Returns a pointer to the member variable structure if variable is found.
* Otherwise returns NULL. The member variable index is set in "*idx".
*/
ocmember_T *
member_lookup(
class_T *cl,
vartype_T v_type,
char_u *name,
size_t namelen,
int *idx)
{
if (v_type == VAR_CLASS)
return class_member_lookup(cl, name, namelen, idx);
else
return object_member_lookup(cl, name, namelen, idx);
}
/*
* Lookup a class or object method by name. If v_type is VAR_CLASS, then
* lookup a class method and if it is VAR_OBJECT, then lookup a object method.
*
* Returns a pointer to the method structure if variable is found.
* Otherwise returns NULL. The method variable index is set in "*idx".
*/
ufunc_T *
method_lookup(
class_T *cl,
vartype_T v_type,
char_u *name,
size_t namelen,
int *idx)
{
if (v_type == VAR_CLASS)
return class_method_lookup(cl, name, namelen, idx);
else
return object_method_lookup(cl, name, namelen, idx);
}
/*
* Return TRUE if current context "cctx_arg" is inside class "cl".
* Return FALSE if not.