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#include <inttypes.h>
#include <stdlib.h>
#include "nvim/errors.h"
#include "nvim/eval.h"
#include "nvim/eval/executor.h"
#include "nvim/eval/typval.h"
#include "nvim/eval/typval_defs.h"
#include "nvim/garray.h"
#include "nvim/gettext_defs.h"
#include "nvim/message.h"
#include "nvim/strings.h"
#include "nvim/types_defs.h"
#include "nvim/vim_defs.h"
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "eval/executor.c.generated.h"
#endif
char *e_list_index_out_of_range_nr
= N_("E684: List index out of range: %" PRId64);
/// Handle "blob1 += blob2".
/// Returns OK or FAIL.
static int tv_op_blob(typval_T *tv1, const typval_T *tv2, const char *op)
FUNC_ATTR_NONNULL_ALL
{
if (*op != '+' || tv2->v_type != VAR_BLOB) {
return FAIL;
}
// Blob += Blob
if (tv2->vval.v_blob == NULL) {
return OK;
}
if (tv1->vval.v_blob == NULL) {
tv1->vval.v_blob = tv2->vval.v_blob;
tv1->vval.v_blob->bv_refcount++;
return OK;
}
blob_T *const b1 = tv1->vval.v_blob;
blob_T *const b2 = tv2->vval.v_blob;
const int len = tv_blob_len(b2);
for (int i = 0; i < len; i++) {
ga_append(&b1->bv_ga, tv_blob_get(b2, i));
}
return OK;
}
/// Handle "list1 += list2".
/// Returns OK or FAIL.
static int tv_op_list(typval_T *tv1, const typval_T *tv2, const char *op)
FUNC_ATTR_NONNULL_ALL
{
if (*op != '+' || tv2->v_type != VAR_LIST) {
return FAIL;
}
// List += List
if (tv2->vval.v_list == NULL) {
return OK;
}
if (tv1->vval.v_list == NULL) {
tv1->vval.v_list = tv2->vval.v_list;
tv_list_ref(tv1->vval.v_list);
} else {
tv_list_extend(tv1->vval.v_list, tv2->vval.v_list, NULL);
}
return OK;
}
/// Handle number operations:
/// nr += nr , nr -= nr , nr *=nr , nr /= nr , nr %= nr
///
/// Returns OK or FAIL.
static int tv_op_number(typval_T *tv1, const typval_T *tv2, const char *op)
FUNC_ATTR_NONNULL_ALL
{
varnumber_T n = tv_get_number(tv1);
if (tv2->v_type == VAR_FLOAT) {
float_T f = (float_T)n;
if (*op == '%') {
return FAIL;
}
switch (*op) {
case '+':
f += tv2->vval.v_float; break;
case '-':
f -= tv2->vval.v_float; break;
case '*':
f *= tv2->vval.v_float; break;
case '/':
f /= tv2->vval.v_float; break;
}
tv_clear(tv1);
tv1->v_type = VAR_FLOAT;
tv1->vval.v_float = f;
} else {
switch (*op) {
case '+':
n += tv_get_number(tv2); break;
case '-':
n -= tv_get_number(tv2); break;
case '*':
n *= tv_get_number(tv2); break;
case '/':
n = num_divide(n, tv_get_number(tv2)); break;
case '%':
n = num_modulus(n, tv_get_number(tv2)); break;
}
tv_clear(tv1);
tv1->v_type = VAR_NUMBER;
tv1->vval.v_number = n;
}
return OK;
}
/// Handle "str1 .= str2"
/// Returns OK or FAIL.
static int tv_op_string(typval_T *tv1, const typval_T *tv2, const char *op)
FUNC_ATTR_NONNULL_ALL
{
if (tv2->v_type == VAR_FLOAT) {
return FAIL;
}
// str .= str
const char *tvs = tv_get_string(tv1);
char numbuf[NUMBUFLEN];
char *const s = concat_str(tvs, tv_get_string_buf(tv2, numbuf));
tv_clear(tv1);
tv1->v_type = VAR_STRING;
tv1->vval.v_string = s;
return OK;
}
/// Handle "tv1 += tv2", "tv1 -= tv2", "tv1 *= tv2", "tv1 /= tv2", "tv1 %= tv2"
/// and "tv1 .= tv2"
/// Returns OK or FAIL.
static int tv_op_nr_or_string(typval_T *tv1, const typval_T *tv2, const char *op)
FUNC_ATTR_NONNULL_ALL
{
if (tv2->v_type == VAR_LIST) {
return FAIL;
}
if (vim_strchr("+-*/%", (uint8_t)(*op)) != NULL) {
return tv_op_number(tv1, tv2, op);
}
return tv_op_string(tv1, tv2, op);
}
/// Handle "f1 += f2", "f1 -= f2", "f1 *= f2", "f1 /= f2".
/// Returns OK or FAIL.
static int tv_op_float(typval_T *tv1, const typval_T *tv2, const char *op)
FUNC_ATTR_NONNULL_ALL
{
if (*op == '%' || *op == '.'
|| (tv2->v_type != VAR_FLOAT
&& tv2->v_type != VAR_NUMBER
&& tv2->v_type != VAR_STRING)) {
return FAIL;
}
const float_T f = (tv2->v_type == VAR_FLOAT
? tv2->vval.v_float
: (float_T)tv_get_number(tv2));
switch (*op) {
case '+':
tv1->vval.v_float += f; break;
case '-':
tv1->vval.v_float -= f; break;
case '*':
tv1->vval.v_float *= f; break;
case '/':
tv1->vval.v_float /= f; break;
}
return OK;
}
/// Handle tv1 += tv2, -=, *=, /=, %=, .=
///
/// @param[in,out] tv1 First operand, modified typval.
/// @param[in] tv2 Second operand.
/// @param[in] op Used operator.
///
/// @return OK or FAIL.
int eexe_mod_op(typval_T *const tv1, const typval_T *const tv2, const char *const op)
FUNC_ATTR_NONNULL_ALL
{
// Can't do anything with a Funcref or Dict on the right.
// v:true and friends only work with "..=".
if (tv2->v_type == VAR_FUNC || tv2->v_type == VAR_DICT
|| ((tv2->v_type == VAR_BOOL || tv2->v_type == VAR_SPECIAL) && *op == '.')) {
semsg(_(e_letwrong), op);
return FAIL;
}
int retval = FAIL;
switch (tv1->v_type) {
case VAR_DICT:
case VAR_FUNC:
case VAR_PARTIAL:
case VAR_BOOL:
case VAR_SPECIAL:
break;
case VAR_BLOB:
retval = tv_op_blob(tv1, tv2, op);
break;
case VAR_LIST:
retval = tv_op_list(tv1, tv2, op);
break;
case VAR_NUMBER:
case VAR_STRING:
retval = tv_op_nr_or_string(tv1, tv2, op);
break;
case VAR_FLOAT:
retval = tv_op_float(tv1, tv2, op);
break;
case VAR_UNKNOWN:
abort();
}
if (retval != OK) {
semsg(_(e_letwrong), op);
}
return retval;
}
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