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Vim/src/vim9execute.c

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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* vim9execute.c: execute Vim9 script instructions
*/
#define USING_FLOAT_STUFF
#include "vim.h"
#if defined(FEAT_EVAL) || defined(PROTO)
#ifdef VMS
# include <float.h>
#endif
#include "vim9.h"
// Structure put on ec_trystack when ISN_TRY is encountered.
typedef struct {
int tcd_frame; // ec_frame when ISN_TRY was encountered
int tcd_catch_idx; // instruction of the first catch
int tcd_finally_idx; // instruction of the finally block
int tcd_caught; // catch block entered
int tcd_return; // when TRUE return from end of :finally
} trycmd_T;
// A stack is used to store:
// - arguments passed to a :def function
// - info about the calling function, to use when returning
// - local variables
// - temporary values
//
// In detail (FP == Frame Pointer):
// arg1 first argument from caller (if present)
// arg2 second argument from caller (if present)
// extra_arg1 any missing optional argument default value
// FP -> cur_func calling function
// current previous instruction pointer
// frame_ptr previous Frame Pointer
// var1 space for local variable
// var2 space for local variable
// .... fixed space for max. number of local variables
// temp temporary values
// .... flexible space for temporary values (can grow big)
/*
* Execution context.
*/
typedef struct {
garray_T ec_stack; // stack of typval_T values
int ec_frame; // index in ec_stack: context of ec_dfunc_idx
garray_T ec_trystack; // stack of trycmd_T values
int ec_in_catch; // when TRUE in catch or finally block
int ec_dfunc_idx; // current function index
isn_T *ec_instr; // array with instructions
int ec_iidx; // index in ec_instr: instruction to execute
} ectx_T;
// Get pointer to item relative to the bottom of the stack, -1 is the last one.
#define STACK_TV_BOT(idx) (((typval_T *)ectx->ec_stack.ga_data) + ectx->ec_stack.ga_len + idx)
/*
* Return the number of arguments, including any vararg.
*/
static int
ufunc_argcount(ufunc_T *ufunc)
{
return ufunc->uf_args.ga_len + (ufunc->uf_va_name != NULL ? 1 : 0);
}
/*
* Call compiled function "cdf_idx" from compiled code.
*
* Stack has:
* - current arguments (already there)
* - omitted optional argument (default values) added here
* - stack frame:
* - pointer to calling function
* - Index of next instruction in calling function
* - previous frame pointer
* - reserved space for local variables
*/
static int
call_dfunc(int cdf_idx, int argcount, ectx_T *ectx)
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data) + cdf_idx;
ufunc_T *ufunc = dfunc->df_ufunc;
int optcount = ufunc_argcount(ufunc) - argcount;
int idx;
if (dfunc->df_deleted)
{
emsg_funcname(e_func_deleted, ufunc->uf_name);
return FAIL;
}
if (ga_grow(&ectx->ec_stack, optcount + 3 + dfunc->df_varcount) == FAIL)
return FAIL;
// TODO: Put omitted argument default values on the stack.
if (optcount > 0)
{
emsg("optional arguments not implemented yet");
return FAIL;
}
if (optcount < 0)
{
emsg("argument count wrong?");
return FAIL;
}
// for (idx = argcount - dfunc->df_minarg;
// idx < dfunc->df_maxarg; ++idx)
// {
// copy_tv(&dfunc->df_defarg[idx], STACK_TV_BOT(0));
// ++ectx->ec_stack.ga_len;
// }
// Store current execution state in stack frame for ISN_RETURN.
// TODO: If the actual number of arguments doesn't match what the called
// function expects things go bad.
STACK_TV_BOT(0)->vval.v_number = ectx->ec_dfunc_idx;
STACK_TV_BOT(1)->vval.v_number = ectx->ec_iidx;
STACK_TV_BOT(2)->vval.v_number = ectx->ec_frame;
ectx->ec_frame = ectx->ec_stack.ga_len;
// Initialize local variables
for (idx = 0; idx < dfunc->df_varcount; ++idx)
STACK_TV_BOT(STACK_FRAME_SIZE + idx)->v_type = VAR_UNKNOWN;
ectx->ec_stack.ga_len += STACK_FRAME_SIZE + dfunc->df_varcount;
// Set execution state to the start of the called function.
ectx->ec_dfunc_idx = cdf_idx;
ectx->ec_instr = dfunc->df_instr;
estack_push_ufunc(ETYPE_UFUNC, dfunc->df_ufunc, 1);
ectx->ec_iidx = 0;
return OK;
}
// Get pointer to item in the stack.
#define STACK_TV(idx) (((typval_T *)ectx->ec_stack.ga_data) + idx)
/*
* Return from the current function.
*/
static void
func_return(ectx_T *ectx)
{
int ret_idx = ectx->ec_stack.ga_len - 1;
int idx;
dfunc_T *dfunc;
// execution context goes one level up
estack_pop();
// Clear the local variables and temporary values, but not
// the return value.
for (idx = ectx->ec_frame + STACK_FRAME_SIZE;
idx < ectx->ec_stack.ga_len - 1; ++idx)
clear_tv(STACK_TV(idx));
dfunc = ((dfunc_T *)def_functions.ga_data) + ectx->ec_dfunc_idx;
ectx->ec_stack.ga_len = ectx->ec_frame
- ufunc_argcount(dfunc->df_ufunc) + 1;
ectx->ec_dfunc_idx = STACK_TV(ectx->ec_frame)->vval.v_number;
ectx->ec_iidx = STACK_TV(ectx->ec_frame + 1)->vval.v_number;
ectx->ec_frame = STACK_TV(ectx->ec_frame + 2)->vval.v_number;
*STACK_TV_BOT(-1) = *STACK_TV(ret_idx);
dfunc = ((dfunc_T *)def_functions.ga_data) + ectx->ec_dfunc_idx;
ectx->ec_instr = dfunc->df_instr;
}
#undef STACK_TV
/*
* Prepare arguments and rettv for calling a builtin or user function.
*/
static int
call_prepare(int argcount, typval_T *argvars, ectx_T *ectx)
{
int idx;
typval_T *tv;
// Move arguments from bottom of the stack to argvars[] and add terminator.
for (idx = 0; idx < argcount; ++idx)
argvars[idx] = *STACK_TV_BOT(idx - argcount);
argvars[argcount].v_type = VAR_UNKNOWN;
// Result replaces the arguments on the stack.
if (argcount > 0)
ectx->ec_stack.ga_len -= argcount - 1;
else if (ga_grow(&ectx->ec_stack, 1) == FAIL)
return FAIL;
else
++ectx->ec_stack.ga_len;
// Default return value is zero.
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = 0;
return OK;
}
/*
* Call a builtin function by index.
*/
static int
call_bfunc(int func_idx, int argcount, ectx_T *ectx)
{
typval_T argvars[MAX_FUNC_ARGS];
int idx;
if (call_prepare(argcount, argvars, ectx) == FAIL)
return FAIL;
// Call the builtin function.
call_internal_func_by_idx(func_idx, argvars, STACK_TV_BOT(-1));
// Clear the arguments.
for (idx = 0; idx < argcount; ++idx)
clear_tv(&argvars[idx]);
return OK;
}
/*
* Execute a user defined function.
*/
static int
call_ufunc(ufunc_T *ufunc, int argcount, ectx_T *ectx)
{
typval_T argvars[MAX_FUNC_ARGS];
funcexe_T funcexe;
int error;
int idx;
if (ufunc->uf_dfunc_idx >= 0)
// The function has been compiled, can call it quickly.
return call_dfunc(ufunc->uf_dfunc_idx, argcount, ectx);
if (call_prepare(argcount, argvars, ectx) == FAIL)
return FAIL;
vim_memset(&funcexe, 0, sizeof(funcexe));
funcexe.evaluate = TRUE;
// Call the user function. Result goes in last position on the stack.
// TODO: add selfdict if there is one
error = call_user_func_check(ufunc, argcount, argvars,
STACK_TV_BOT(-1), &funcexe, NULL);
// Clear the arguments.
for (idx = 0; idx < argcount; ++idx)
clear_tv(&argvars[idx]);
if (error != FCERR_NONE)
{
user_func_error(error, ufunc->uf_name);
return FAIL;
}
return OK;
}
/*
* Execute a function by "name".
* This can be a builtin function or a user function.
* Returns FAIL if not found without an error message.
*/
static int
call_by_name(char_u *name, int argcount, ectx_T *ectx)
{
ufunc_T *ufunc;
if (builtin_function(name, -1))
{
int func_idx = find_internal_func(name);
if (func_idx < 0)
return FAIL;
if (check_internal_func(func_idx, argcount) == FAIL)
return FAIL;
return call_bfunc(func_idx, argcount, ectx);
}
ufunc = find_func(name, NULL);
if (ufunc != NULL)
return call_ufunc(ufunc, argcount, ectx);
return FAIL;
}
static int
call_partial(typval_T *tv, int argcount, ectx_T *ectx)
{
char_u *name;
int called_emsg_before = called_emsg;
if (tv->v_type == VAR_PARTIAL)
{
partial_T *pt = tv->vval.v_partial;
if (pt->pt_func != NULL)
return call_ufunc(pt->pt_func, argcount, ectx);
name = pt->pt_name;
}
else
name = tv->vval.v_string;
if (call_by_name(name, argcount, ectx) == FAIL)
{
if (called_emsg == called_emsg_before)
semsg(_(e_unknownfunc), name);
return FAIL;
}
return OK;
}
/*
* Execute a function by "name".
* This can be a builtin function, user function or a funcref.
*/
static int
call_eval_func(char_u *name, int argcount, ectx_T *ectx)
{
int called_emsg_before = called_emsg;
if (call_by_name(name, argcount, ectx) == FAIL
&& called_emsg == called_emsg_before)
{
// "name" may be a variable that is a funcref or partial
// if find variable
// call_partial()
// else
// semsg(_(e_unknownfunc), name);
emsg("call_eval_func(partial) not implemented yet");
return FAIL;
}
return OK;
}
/*
* Call a "def" function from old Vim script.
* Return OK or FAIL.
*/
int
call_def_function(
ufunc_T *ufunc,
int argc, // nr of arguments
typval_T *argv, // arguments
typval_T *rettv) // return value
{
ectx_T ectx; // execution context
int initial_frame_ptr;
typval_T *tv;
int idx;
int ret = FAIL;
dfunc_T *dfunc;
// Get pointer to item in the stack.
#define STACK_TV(idx) (((typval_T *)ectx.ec_stack.ga_data) + idx)
// Get pointer to item at the bottom of the stack, -1 is the bottom.
#undef STACK_TV_BOT
#define STACK_TV_BOT(idx) (((typval_T *)ectx.ec_stack.ga_data) + ectx.ec_stack.ga_len + idx)
// Get pointer to local variable on the stack.
#define STACK_TV_VAR(idx) (((typval_T *)ectx.ec_stack.ga_data) + ectx.ec_frame + STACK_FRAME_SIZE + idx)
vim_memset(&ectx, 0, sizeof(ectx));
ga_init2(&ectx.ec_stack, sizeof(typval_T), 500);
if (ga_grow(&ectx.ec_stack, 20) == FAIL)
goto failed;
ectx.ec_dfunc_idx = ufunc->uf_dfunc_idx;
ga_init2(&ectx.ec_trystack, sizeof(trycmd_T), 10);
// Put arguments on the stack.
for (idx = 0; idx < argc; ++idx)
{
copy_tv(&argv[idx], STACK_TV_BOT(0));
++ectx.ec_stack.ga_len;
}
// Frame pointer points to just after arguments.
ectx.ec_frame = ectx.ec_stack.ga_len;
initial_frame_ptr = ectx.ec_frame;
// dummy frame entries
for (idx = 0; idx < STACK_FRAME_SIZE; ++idx)
{
STACK_TV(ectx.ec_stack.ga_len)->v_type = VAR_UNKNOWN;
++ectx.ec_stack.ga_len;
}
// Reserve space for local variables.
dfunc = ((dfunc_T *)def_functions.ga_data) + ufunc->uf_dfunc_idx;
for (idx = 0; idx < dfunc->df_varcount; ++idx)
STACK_TV_VAR(idx)->v_type = VAR_UNKNOWN;
ectx.ec_stack.ga_len += dfunc->df_varcount;
ectx.ec_instr = dfunc->df_instr;
ectx.ec_iidx = 0;
for (;;)
{
isn_T *iptr;
trycmd_T *trycmd = NULL;
if (did_throw && !ectx.ec_in_catch)
{
garray_T *trystack = &ectx.ec_trystack;
// An exception jumps to the first catch, finally, or returns from
// the current function.
if (trystack->ga_len > 0)
trycmd = ((trycmd_T *)trystack->ga_data) + trystack->ga_len - 1;
if (trycmd != NULL && trycmd->tcd_frame == ectx.ec_frame)
{
// jump to ":catch" or ":finally"
ectx.ec_in_catch = TRUE;
ectx.ec_iidx = trycmd->tcd_catch_idx;
}
else
{
// not inside try or need to return from current functions.
if (ectx.ec_frame == initial_frame_ptr)
{
// At the toplevel we are done. Push a dummy return value.
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
tv = STACK_TV_BOT(0);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = 0;
++ectx.ec_stack.ga_len;
goto done;
}
func_return(&ectx);
}
continue;
}
iptr = &ectx.ec_instr[ectx.ec_iidx++];
switch (iptr->isn_type)
{
// execute Ex command line
case ISN_EXEC:
do_cmdline_cmd(iptr->isn_arg.string);
break;
// execute :echo {string} ...
case ISN_ECHO:
{
int count = iptr->isn_arg.echo.echo_count;
int atstart = TRUE;
int needclr = TRUE;
for (idx = 0; idx < count; ++idx)
{
tv = STACK_TV_BOT(idx - count);
echo_one(tv, iptr->isn_arg.echo.echo_with_white,
&atstart, &needclr);
clear_tv(tv);
}
ectx.ec_stack.ga_len -= count;
}
break;
// load local variable or argument
case ISN_LOAD:
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
copy_tv(STACK_TV_VAR(iptr->isn_arg.number), STACK_TV_BOT(0));
++ectx.ec_stack.ga_len;
break;
// load v: variable
case ISN_LOADV:
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
copy_tv(get_vim_var_tv(iptr->isn_arg.number), STACK_TV_BOT(0));
++ectx.ec_stack.ga_len;
break;
// load s: variable in vim9script
case ISN_LOADSCRIPT:
{
scriptitem_T *si =
&SCRIPT_ITEM(iptr->isn_arg.script.script_sid);
svar_T *sv;
sv = ((svar_T *)si->sn_var_vals.ga_data)
+ iptr->isn_arg.script.script_idx;
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
copy_tv(sv->sv_tv, STACK_TV_BOT(0));
++ectx.ec_stack.ga_len;
}
break;
// load s: variable in old script
case ISN_LOADS:
{
hashtab_T *ht = &SCRIPT_VARS(iptr->isn_arg.loads.ls_sid);
char_u *name = iptr->isn_arg.loads.ls_name;
dictitem_T *di = find_var_in_ht(ht, 0, name, TRUE);
if (di == NULL)
{
semsg(_("E121: Undefined variable: s:%s"), name);
goto failed;
}
else
{
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
copy_tv(&di->di_tv, STACK_TV_BOT(0));
++ectx.ec_stack.ga_len;
}
}
break;
// load g: variable
case ISN_LOADG:
{
dictitem_T *di;
di = find_var_in_ht(get_globvar_ht(), 0,
iptr->isn_arg.string, TRUE);
if (di == NULL)
{
semsg(_("E121: Undefined variable: g:%s"),
iptr->isn_arg.string);
goto failed;
}
else
{
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
copy_tv(&di->di_tv, STACK_TV_BOT(0));
++ectx.ec_stack.ga_len;
}
}
break;
// load &option
case ISN_LOADOPT:
{
typval_T optval;
char_u *name = iptr->isn_arg.string;
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
get_option_tv(&name, &optval, TRUE);
*STACK_TV_BOT(0) = optval;
++ectx.ec_stack.ga_len;
}
break;
// load $ENV
case ISN_LOADENV:
{
typval_T optval;
char_u *name = iptr->isn_arg.string;
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
get_env_tv(&name, &optval, TRUE);
*STACK_TV_BOT(0) = optval;
++ectx.ec_stack.ga_len;
}
break;
// load @register
case ISN_LOADREG:
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
tv = STACK_TV_BOT(0);
tv->v_type = VAR_STRING;
tv->vval.v_string = get_reg_contents(
iptr->isn_arg.number, GREG_EXPR_SRC);
++ectx.ec_stack.ga_len;
break;
// store local variable
case ISN_STORE:
--ectx.ec_stack.ga_len;
tv = STACK_TV_VAR(iptr->isn_arg.number);
clear_tv(tv);
*tv = *STACK_TV_BOT(0);
break;
// store script-local variable
case ISN_STORESCRIPT:
{
scriptitem_T *si = &SCRIPT_ITEM(
iptr->isn_arg.script.script_sid);
svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data)
+ iptr->isn_arg.script.script_idx;
--ectx.ec_stack.ga_len;
clear_tv(sv->sv_tv);
*sv->sv_tv = *STACK_TV_BOT(0);
}
break;
// store option
case ISN_STOREOPT:
{
long n = 0;
char_u *s = NULL;
char *msg;
--ectx.ec_stack.ga_len;
tv = STACK_TV_BOT(0);
if (tv->v_type == VAR_STRING)
s = tv->vval.v_string;
else if (tv->v_type == VAR_NUMBER)
n = tv->vval.v_number;
else
{
emsg(_("E1051: Expected string or number"));
goto failed;
}
msg = set_option_value(iptr->isn_arg.storeopt.so_name,
n, s, iptr->isn_arg.storeopt.so_flags);
if (msg != NULL)
{
emsg(_(msg));
goto failed;
}
clear_tv(tv);
}
break;
// store g: variable
case ISN_STOREG:
{
dictitem_T *di;
--ectx.ec_stack.ga_len;
di = find_var_in_ht(get_globvar_ht(), 0,
iptr->isn_arg.string, TRUE);
if (di == NULL)
{
funccal_entry_T entry;
save_funccal(&entry);
set_var_const(iptr->isn_arg.string, NULL,
STACK_TV_BOT(0), FALSE, 0);
restore_funccal();
}
else
{
clear_tv(&di->di_tv);
di->di_tv = *STACK_TV_BOT(0);
}
}
break;
// store number in local variable
case ISN_STORENR:
tv = STACK_TV_VAR(iptr->isn_arg.storenr.str_idx);
clear_tv(tv);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = iptr->isn_arg.storenr.str_val;
break;
// push constant
case ISN_PUSHNR:
case ISN_PUSHBOOL:
case ISN_PUSHSPEC:
case ISN_PUSHF:
case ISN_PUSHS:
case ISN_PUSHBLOB:
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
tv = STACK_TV_BOT(0);
++ectx.ec_stack.ga_len;
switch (iptr->isn_type)
{
case ISN_PUSHNR:
tv->v_type = VAR_NUMBER;
tv->vval.v_number = iptr->isn_arg.number;
break;
case ISN_PUSHBOOL:
tv->v_type = VAR_BOOL;
tv->vval.v_number = iptr->isn_arg.number;
break;
case ISN_PUSHSPEC:
tv->v_type = VAR_SPECIAL;
tv->vval.v_number = iptr->isn_arg.number;
break;
#ifdef FEAT_FLOAT
case ISN_PUSHF:
tv->v_type = VAR_FLOAT;
tv->vval.v_float = iptr->isn_arg.fnumber;
break;
#endif
case ISN_PUSHBLOB:
blob_copy(iptr->isn_arg.blob, tv);
break;
default:
tv->v_type = VAR_STRING;
tv->vval.v_string = vim_strsave(iptr->isn_arg.string);
}
break;
// create a list from items on the stack; uses a single allocation
// for the list header and the items
case ISN_NEWLIST:
{
int count = iptr->isn_arg.number;
list_T *list = list_alloc_with_items(count);
if (list == NULL)
goto failed;
for (idx = 0; idx < count; ++idx)
list_set_item(list, idx, STACK_TV_BOT(idx - count));
if (count > 0)
ectx.ec_stack.ga_len -= count - 1;
else if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
else
++ectx.ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_LIST;
tv->vval.v_list = list;
++list->lv_refcount;
}
break;
// create a dict from items on the stack
case ISN_NEWDICT:
{
int count = iptr->isn_arg.number;
dict_T *dict = dict_alloc();
dictitem_T *item;
if (dict == NULL)
goto failed;
for (idx = 0; idx < count; ++idx)
{
// check key type is VAR_STRING
tv = STACK_TV_BOT(2 * (idx - count));
item = dictitem_alloc(tv->vval.v_string);
clear_tv(tv);
if (item == NULL)
goto failed;
item->di_tv = *STACK_TV_BOT(2 * (idx - count) + 1);
item->di_tv.v_lock = 0;
if (dict_add(dict, item) == FAIL)
goto failed;
}
if (count > 0)
ectx.ec_stack.ga_len -= 2 * count - 1;
else if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
else
++ectx.ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_DICT;
tv->vval.v_dict = dict;
++dict->dv_refcount;
}
break;
// call a :def function
case ISN_DCALL:
if (call_dfunc(iptr->isn_arg.dfunc.cdf_idx,
iptr->isn_arg.dfunc.cdf_argcount,
&ectx) == FAIL)
goto failed;
break;
// call a builtin function
case ISN_BCALL:
SOURCING_LNUM = iptr->isn_lnum;
if (call_bfunc(iptr->isn_arg.bfunc.cbf_idx,
iptr->isn_arg.bfunc.cbf_argcount,
&ectx) == FAIL)
goto failed;
break;
// call a funcref or partial
case ISN_PCALL:
{
cpfunc_T *pfunc = &iptr->isn_arg.pfunc;
int r;
typval_T partial;
SOURCING_LNUM = iptr->isn_lnum;
if (pfunc->cpf_top)
{
// funcref is above the arguments
tv = STACK_TV_BOT(-pfunc->cpf_argcount - 1);
}
else
{
// Get the funcref from the stack.
--ectx.ec_stack.ga_len;
partial = *STACK_TV_BOT(0);
tv = &partial;
}
r = call_partial(tv, pfunc->cpf_argcount, &ectx);
if (tv == &partial)
clear_tv(&partial);
if (r == FAIL)
goto failed;
if (pfunc->cpf_top)
{
// Get the funcref from the stack, overwrite with the
// return value.
clear_tv(tv);
--ectx.ec_stack.ga_len;
*STACK_TV_BOT(-1) = *STACK_TV_BOT(0);
}
}
break;
// call a user defined function or funcref/partial
case ISN_UCALL:
{
cufunc_T *cufunc = &iptr->isn_arg.ufunc;
SOURCING_LNUM = iptr->isn_lnum;
if (call_eval_func(cufunc->cuf_name,
cufunc->cuf_argcount, &ectx) == FAIL)
goto failed;
}
break;
// return from a :def function call
case ISN_RETURN:
{
if (trycmd != NULL && trycmd->tcd_frame == ectx.ec_frame
&& trycmd->tcd_finally_idx != 0)
{
// jump to ":finally"
ectx.ec_iidx = trycmd->tcd_finally_idx;
trycmd->tcd_return = TRUE;
}
else
{
// Restore previous function. If the frame pointer
// is zero then there is none and we are done.
if (ectx.ec_frame == initial_frame_ptr)
goto done;
func_return(&ectx);
}
}
break;
// push a function reference to a compiled function
case ISN_FUNCREF:
{
partial_T *pt = NULL;
pt = ALLOC_CLEAR_ONE(partial_T);
if (pt == NULL)
goto failed;
dfunc = ((dfunc_T *)def_functions.ga_data)
+ iptr->isn_arg.number;
pt->pt_func = dfunc->df_ufunc;
pt->pt_refcount = 1;
++dfunc->df_ufunc->uf_refcount;
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
tv = STACK_TV_BOT(0);
++ectx.ec_stack.ga_len;
tv->vval.v_partial = pt;
tv->v_type = VAR_PARTIAL;
}
break;
// jump if a condition is met
case ISN_JUMP:
{
jumpwhen_T when = iptr->isn_arg.jump.jump_when;
int jump = TRUE;
if (when != JUMP_ALWAYS)
{
tv = STACK_TV_BOT(-1);
jump = tv2bool(tv);
if (when == JUMP_IF_FALSE
|| when == JUMP_AND_KEEP_IF_FALSE)
jump = !jump;
if (when == JUMP_IF_FALSE || when == JUMP_IF_TRUE
|| !jump)
{
// drop the value from the stack
clear_tv(tv);
--ectx.ec_stack.ga_len;
}
}
if (jump)
ectx.ec_iidx = iptr->isn_arg.jump.jump_where;
}
break;
// top of a for loop
case ISN_FOR:
{
list_T *list = STACK_TV_BOT(-1)->vval.v_list;
typval_T *idxtv =
STACK_TV_VAR(iptr->isn_arg.forloop.for_idx);
// push the next item from the list
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
if (++idxtv->vval.v_number >= list->lv_len)
// past the end of the list, jump to "endfor"
ectx.ec_iidx = iptr->isn_arg.forloop.for_end;
else if (list->lv_first == &range_list_item)
{
// non-materialized range() list
tv = STACK_TV_BOT(0);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = list_find_nr(
list, idxtv->vval.v_number, NULL);
++ectx.ec_stack.ga_len;
}
else
{
listitem_T *li = list_find(list, idxtv->vval.v_number);
if (li == NULL)
goto failed;
copy_tv(&li->li_tv, STACK_TV_BOT(0));
++ectx.ec_stack.ga_len;
}
}
break;
// start of ":try" block
case ISN_TRY:
{
if (ga_grow(&ectx.ec_trystack, 1) == FAIL)
goto failed;
trycmd = ((trycmd_T *)ectx.ec_trystack.ga_data)
+ ectx.ec_trystack.ga_len;
++ectx.ec_trystack.ga_len;
++trylevel;
trycmd->tcd_frame = ectx.ec_frame;
trycmd->tcd_catch_idx = iptr->isn_arg.try.try_catch;
trycmd->tcd_finally_idx = iptr->isn_arg.try.try_finally;
}
break;
case ISN_PUSHEXC:
if (current_exception == NULL)
{
iemsg("Evaluating catch while current_exception is NULL");
goto failed;
}
if (ga_grow(&ectx.ec_stack, 1) == FAIL)
goto failed;
tv = STACK_TV_BOT(0);
++ectx.ec_stack.ga_len;
tv->v_type = VAR_STRING;
tv->vval.v_string = vim_strsave(
(char_u *)current_exception->value);
break;
case ISN_CATCH:
{
garray_T *trystack = &ectx.ec_trystack;
if (trystack->ga_len > 0)
{
trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len - 1;
trycmd->tcd_caught = TRUE;
}
did_emsg = got_int = did_throw = FALSE;
catch_exception(current_exception);
}
break;
// end of ":try" block
case ISN_ENDTRY:
{
garray_T *trystack = &ectx.ec_trystack;
if (trystack->ga_len > 0)
{
--trystack->ga_len;
--trylevel;
trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len;
if (trycmd->tcd_caught)
{
// discard the exception
if (caught_stack == current_exception)
caught_stack = caught_stack->caught;
discard_current_exception();
}
if (trycmd->tcd_return)
{
// Restore previous function. If the frame pointer
// is zero then there is none and we are done.
if (ectx.ec_frame == initial_frame_ptr)
goto done;
func_return(&ectx);
}
}
}
break;
case ISN_THROW:
--ectx.ec_stack.ga_len;
tv = STACK_TV_BOT(0);
if (throw_exception(tv->vval.v_string, ET_USER, NULL) == FAIL)
{
vim_free(tv->vval.v_string);
goto failed;
}
did_throw = TRUE;
break;
// compare with special values
case ISN_COMPAREBOOL:
case ISN_COMPARESPECIAL:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
varnumber_T arg1 = tv1->vval.v_number;
varnumber_T arg2 = tv2->vval.v_number;
int res;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_EQUAL: res = arg1 == arg2; break;
case EXPR_NEQUAL: res = arg1 != arg2; break;
default: res = 0; break;
}
--ectx.ec_stack.ga_len;
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
}
break;
// Operation with two number arguments
case ISN_OPNR:
case ISN_COMPARENR:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
varnumber_T arg1 = tv1->vval.v_number;
varnumber_T arg2 = tv2->vval.v_number;
varnumber_T res;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: res = arg1 * arg2; break;
case EXPR_DIV: res = arg1 / arg2; break;
case EXPR_REM: res = arg1 % arg2; break;
case EXPR_SUB: res = arg1 - arg2; break;
case EXPR_ADD: res = arg1 + arg2; break;
case EXPR_EQUAL: res = arg1 == arg2; break;
case EXPR_NEQUAL: res = arg1 != arg2; break;
case EXPR_GREATER: res = arg1 > arg2; break;
case EXPR_GEQUAL: res = arg1 >= arg2; break;
case EXPR_SMALLER: res = arg1 < arg2; break;
case EXPR_SEQUAL: res = arg1 <= arg2; break;
default: res = 0; break;
}
--ectx.ec_stack.ga_len;
if (iptr->isn_type == ISN_COMPARENR)
{
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
}
else
tv1->vval.v_number = res;
}
break;
// Computation with two float arguments
case ISN_OPFLOAT:
case ISN_COMPAREFLOAT:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
float_T arg1 = tv1->vval.v_float;
float_T arg2 = tv2->vval.v_float;
float_T res = 0;
int cmp = FALSE;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: res = arg1 * arg2; break;
case EXPR_DIV: res = arg1 / arg2; break;
case EXPR_SUB: res = arg1 - arg2; break;
case EXPR_ADD: res = arg1 + arg2; break;
case EXPR_EQUAL: cmp = arg1 == arg2; break;
case EXPR_NEQUAL: cmp = arg1 != arg2; break;
case EXPR_GREATER: cmp = arg1 > arg2; break;
case EXPR_GEQUAL: cmp = arg1 >= arg2; break;
case EXPR_SMALLER: cmp = arg1 < arg2; break;
case EXPR_SEQUAL: cmp = arg1 <= arg2; break;
default: cmp = 0; break;
}
--ectx.ec_stack.ga_len;
if (iptr->isn_type == ISN_COMPAREFLOAT)
{
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = cmp ? VVAL_TRUE : VVAL_FALSE;
}
else
tv1->vval.v_float = res;
}
break;
case ISN_COMPARELIST:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
list_T *arg1 = tv1->vval.v_list;
list_T *arg2 = tv2->vval.v_list;
int cmp = FALSE;
int ic = iptr->isn_arg.op.op_ic;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_EQUAL: cmp =
list_equal(arg1, arg2, ic, FALSE); break;
case EXPR_NEQUAL: cmp =
!list_equal(arg1, arg2, ic, FALSE); break;
case EXPR_IS: cmp = arg1 == arg2; break;
case EXPR_ISNOT: cmp = arg1 != arg2; break;
default: cmp = 0; break;
}
--ectx.ec_stack.ga_len;
clear_tv(tv1);
clear_tv(tv2);
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = cmp ? VVAL_TRUE : VVAL_FALSE;
}
break;
case ISN_COMPAREBLOB:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
blob_T *arg1 = tv1->vval.v_blob;
blob_T *arg2 = tv2->vval.v_blob;
int cmp = FALSE;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_EQUAL: cmp = blob_equal(arg1, arg2); break;
case EXPR_NEQUAL: cmp = !blob_equal(arg1, arg2); break;
case EXPR_IS: cmp = arg1 == arg2; break;
case EXPR_ISNOT: cmp = arg1 != arg2; break;
default: cmp = 0; break;
}
--ectx.ec_stack.ga_len;
clear_tv(tv1);
clear_tv(tv2);
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = cmp ? VVAL_TRUE : VVAL_FALSE;
}
break;
// TODO: handle separately
case ISN_COMPARESTRING:
case ISN_COMPAREDICT:
case ISN_COMPAREFUNC:
case ISN_COMPAREPARTIAL:
case ISN_COMPAREANY:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
exptype_T exptype = iptr->isn_arg.op.op_type;
int ic = iptr->isn_arg.op.op_ic;
typval_compare(tv1, tv2, exptype, ic);
clear_tv(tv2);
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = tv1->vval.v_number
? VVAL_TRUE : VVAL_FALSE;
--ectx.ec_stack.ga_len;
}
break;
case ISN_ADDLIST:
case ISN_ADDBLOB:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
if (iptr->isn_type == ISN_ADDLIST)
eval_addlist(tv1, tv2);
else
eval_addblob(tv1, tv2);
clear_tv(tv2);
--ectx.ec_stack.ga_len;
}
break;
// Computation with two arguments of unknown type
case ISN_OPANY:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
varnumber_T n1, n2;
#ifdef FEAT_FLOAT
float_T f1 = 0, f2 = 0;
#endif
int error = FALSE;
if (iptr->isn_arg.op.op_type == EXPR_ADD)
{
if (tv1->v_type == VAR_LIST && tv2->v_type == VAR_LIST)
{
eval_addlist(tv1, tv2);
clear_tv(tv2);
--ectx.ec_stack.ga_len;
break;
}
else if (tv1->v_type == VAR_BLOB
&& tv2->v_type == VAR_BLOB)
{
eval_addblob(tv1, tv2);
clear_tv(tv2);
--ectx.ec_stack.ga_len;
break;
}
}
#ifdef FEAT_FLOAT
if (tv1->v_type == VAR_FLOAT)
{
f1 = tv1->vval.v_float;
n1 = 0;
}
else
#endif
{
n1 = tv_get_number_chk(tv1, &error);
if (error)
goto failed;
#ifdef FEAT_FLOAT
if (tv2->v_type == VAR_FLOAT)
f1 = n1;
#endif
}
#ifdef FEAT_FLOAT
if (tv2->v_type == VAR_FLOAT)
{
f2 = tv2->vval.v_float;
n2 = 0;
}
else
#endif
{
n2 = tv_get_number_chk(tv2, &error);
if (error)
goto failed;
#ifdef FEAT_FLOAT
if (tv1->v_type == VAR_FLOAT)
f2 = n2;
#endif
}
#ifdef FEAT_FLOAT
// if there is a float on either side the result is a float
if (tv1->v_type == VAR_FLOAT || tv2->v_type == VAR_FLOAT)
{
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: f1 = f1 * f2; break;
case EXPR_DIV: f1 = f1 / f2; break;
case EXPR_SUB: f1 = f1 - f2; break;
case EXPR_ADD: f1 = f1 + f2; break;
default: emsg(_(e_modulus)); goto failed;
}
clear_tv(tv1);
clear_tv(tv2);
tv1->v_type = VAR_FLOAT;
tv1->vval.v_float = f1;
--ectx.ec_stack.ga_len;
}
else
#endif
{
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: n1 = n1 * n2; break;
case EXPR_DIV: n1 = num_divide(n1, n2); break;
case EXPR_SUB: n1 = n1 - n2; break;
case EXPR_ADD: n1 = n1 + n2; break;
default: n1 = num_modulus(n1, n2); break;
}
clear_tv(tv1);
clear_tv(tv2);
tv1->v_type = VAR_NUMBER;
tv1->vval.v_number = n1;
--ectx.ec_stack.ga_len;
}
}
break;
case ISN_CONCAT:
{
char_u *str1 = STACK_TV_BOT(-2)->vval.v_string;
char_u *str2 = STACK_TV_BOT(-1)->vval.v_string;
char_u *res;
res = concat_str(str1, str2);
clear_tv(STACK_TV_BOT(-2));
clear_tv(STACK_TV_BOT(-1));
--ectx.ec_stack.ga_len;
STACK_TV_BOT(-1)->vval.v_string = res;
}
break;
case ISN_INDEX:
{
list_T *list;
varnumber_T n;
listitem_T *li;
// list index: list is at stack-2, index at stack-1
tv = STACK_TV_BOT(-2);
if (tv->v_type != VAR_LIST)
{
emsg(_(e_listreq));
goto failed;
}
list = tv->vval.v_list;
tv = STACK_TV_BOT(-1);
if (tv->v_type != VAR_NUMBER)
{
emsg(_(e_number_exp));
goto failed;
}
n = tv->vval.v_number;
clear_tv(tv);
if ((li = list_find(list, n)) == NULL)
{
semsg(_(e_listidx), n);
goto failed;
}
--ectx.ec_stack.ga_len;
clear_tv(STACK_TV_BOT(-1));
copy_tv(&li->li_tv, STACK_TV_BOT(-1));
}
break;
// dict member with string key
case ISN_MEMBER:
{
dict_T *dict;
dictitem_T *di;
tv = STACK_TV_BOT(-1);
if (tv->v_type != VAR_DICT || tv->vval.v_dict == NULL)
{
emsg(_(e_dictreq));
goto failed;
}
dict = tv->vval.v_dict;
if ((di = dict_find(dict, iptr->isn_arg.string, -1))
== NULL)
{
semsg(_(e_dictkey), iptr->isn_arg.string);
goto failed;
}
clear_tv(tv);
copy_tv(&di->di_tv, tv);
}
break;
case ISN_NEGATENR:
tv = STACK_TV_BOT(-1);
tv->vval.v_number = -tv->vval.v_number;
break;
case ISN_CHECKNR:
{
int error = FALSE;
tv = STACK_TV_BOT(-1);
if (check_not_string(tv) == FAIL)
{
--ectx.ec_stack.ga_len;
goto failed;
}
(void)tv_get_number_chk(tv, &error);
if (error)
goto failed;
}
break;
case ISN_CHECKTYPE:
{
checktype_T *ct = &iptr->isn_arg.type;
tv = STACK_TV_BOT(ct->ct_off);
if (tv->v_type != ct->ct_type)
{
semsg(_("E1029: Expected %s but got %s"),
vartype_name(ct->ct_type),
vartype_name(tv->v_type));
goto failed;
}
}
break;
case ISN_2BOOL:
{
int n;
tv = STACK_TV_BOT(-1);
n = tv2bool(tv);
if (iptr->isn_arg.number) // invert
n = !n;
clear_tv(tv);
tv->v_type = VAR_BOOL;
tv->vval.v_number = n ? VVAL_TRUE : VVAL_FALSE;
}
break;
case ISN_2STRING:
{
char_u *str;
tv = STACK_TV_BOT(iptr->isn_arg.number);
if (tv->v_type != VAR_STRING)
{
str = typval_tostring(tv);
clear_tv(tv);
tv->v_type = VAR_STRING;
tv->vval.v_string = str;
}
}
break;
case ISN_DROP:
--ectx.ec_stack.ga_len;
clear_tv(STACK_TV_BOT(0));
break;
}
}
done:
// function finished, get result from the stack.
tv = STACK_TV_BOT(-1);
*rettv = *tv;
tv->v_type = VAR_UNKNOWN;
ret = OK;
failed:
for (idx = 0; idx < ectx.ec_stack.ga_len; ++idx)
clear_tv(STACK_TV(idx));
vim_free(ectx.ec_stack.ga_data);
return ret;
}
#define DISASSEMBLE 1
/*
* ":dissassemble".
*/
void
ex_disassemble(exarg_T *eap)
{
#ifdef DISASSEMBLE
ufunc_T *ufunc = find_func(eap->arg, NULL);
dfunc_T *dfunc;
isn_T *instr;
int current;
int line_idx = 0;
int prev_current = 0;
if (ufunc == NULL)
{
semsg("Cannot find function %s", eap->arg);
return;
}
if (ufunc->uf_dfunc_idx < 0)
{
semsg("Function %s is not compiled", eap->arg);
return;
}
if (ufunc->uf_name_exp != NULL)
msg((char *)ufunc->uf_name_exp);
else
msg((char *)ufunc->uf_name);
dfunc = ((dfunc_T *)def_functions.ga_data) + ufunc->uf_dfunc_idx;
instr = dfunc->df_instr;
for (current = 0; current < dfunc->df_instr_count; ++current)
{
isn_T *iptr = &instr[current];
while (line_idx < iptr->isn_lnum && line_idx < ufunc->uf_lines.ga_len)
{
if (current > prev_current)
{
msg_puts("\n\n");
prev_current = current;
}
msg(((char **)ufunc->uf_lines.ga_data)[line_idx++]);
}
switch (iptr->isn_type)
{
case ISN_EXEC:
smsg("%4d EXEC %s", current, iptr->isn_arg.string);
break;
case ISN_ECHO:
{
echo_T *echo = &iptr->isn_arg.echo;
smsg("%4d %s %d", current,
echo->echo_with_white ? "ECHO" : "ECHON",
echo->echo_count);
}
break;
case ISN_LOAD:
if (iptr->isn_arg.number < 0)
smsg("%4d LOAD arg[%lld]", current,
iptr->isn_arg.number + STACK_FRAME_SIZE);
else
smsg("%4d LOAD $%lld", current, iptr->isn_arg.number);
break;
case ISN_LOADV:
smsg("%4d LOADV v:%s", current,
get_vim_var_name(iptr->isn_arg.number));
break;
case ISN_LOADSCRIPT:
{
scriptitem_T *si =
&SCRIPT_ITEM(iptr->isn_arg.script.script_sid);
svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data)
+ iptr->isn_arg.script.script_idx;
smsg("%4d LOADSCRIPT %s from %s", current,
sv->sv_name, si->sn_name);
}
break;
case ISN_LOADS:
{
scriptitem_T *si = &SCRIPT_ITEM(iptr->isn_arg.loads.ls_sid);
smsg("%4d LOADS s:%s from %s", current,
iptr->isn_arg.string, si->sn_name);
}
break;
case ISN_LOADG:
smsg("%4d LOADG g:%s", current, iptr->isn_arg.string);
break;
case ISN_LOADOPT:
smsg("%4d LOADOPT %s", current, iptr->isn_arg.string);
break;
case ISN_LOADENV:
smsg("%4d LOADENV %s", current, iptr->isn_arg.string);
break;
case ISN_LOADREG:
smsg("%4d LOADREG @%c", current, iptr->isn_arg.number);
break;
case ISN_STORE:
smsg("%4d STORE $%lld", current, iptr->isn_arg.number);
break;
case ISN_STOREG:
smsg("%4d STOREG g:%s", current, iptr->isn_arg.string);
break;
case ISN_STORESCRIPT:
{
scriptitem_T *si =
&SCRIPT_ITEM(iptr->isn_arg.script.script_sid);
svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data)
+ iptr->isn_arg.script.script_idx;
smsg("%4d STORESCRIPT %s in %s", current,
sv->sv_name, si->sn_name);
}
break;
case ISN_STOREOPT:
smsg("%4d STOREOPT &%s", current,
iptr->isn_arg.storeopt.so_name);
break;
case ISN_STORENR:
smsg("%4d STORE %lld in $%d", current,
iptr->isn_arg.storenr.str_val,
iptr->isn_arg.storenr.str_idx);
break;
// constants
case ISN_PUSHNR:
smsg("%4d PUSHNR %lld", current, iptr->isn_arg.number);
break;
case ISN_PUSHBOOL:
case ISN_PUSHSPEC:
smsg("%4d PUSH %s", current,
get_var_special_name(iptr->isn_arg.number));
break;
case ISN_PUSHF:
smsg("%4d PUSHF %g", current, iptr->isn_arg.fnumber);
break;
case ISN_PUSHS:
smsg("%4d PUSHS \"%s\"", current, iptr->isn_arg.string);
break;
case ISN_PUSHBLOB:
{
char_u *r;
char_u numbuf[NUMBUFLEN];
char_u *tofree;
r = blob2string(iptr->isn_arg.blob, &tofree, numbuf);
smsg("%4d PUSHBLOB \"%s\"", current, r);
vim_free(tofree);
}
break;
case ISN_PUSHEXC:
smsg("%4d PUSH v:exception", current);
break;
case ISN_NEWLIST:
smsg("%4d NEWLIST size %lld", current, iptr->isn_arg.number);
break;
case ISN_NEWDICT:
smsg("%4d NEWDICT size %lld", current, iptr->isn_arg.number);
break;
// function call
case ISN_BCALL:
{
cbfunc_T *cbfunc = &iptr->isn_arg.bfunc;
smsg("%4d BCALL %s(argc %d)", current,
internal_func_name(cbfunc->cbf_idx),
cbfunc->cbf_argcount);
}
break;
case ISN_DCALL:
{
cdfunc_T *cdfunc = &iptr->isn_arg.dfunc;
dfunc_T *df = ((dfunc_T *)def_functions.ga_data)
+ cdfunc->cdf_idx;
smsg("%4d DCALL %s(argc %d)", current,
df->df_ufunc->uf_name_exp != NULL
? df->df_ufunc->uf_name_exp
: df->df_ufunc->uf_name, cdfunc->cdf_argcount);
}
break;
case ISN_UCALL:
{
cufunc_T *cufunc = &iptr->isn_arg.ufunc;
smsg("%4d UCALL %s(argc %d)", current,
cufunc->cuf_name, cufunc->cuf_argcount);
}
break;
case ISN_PCALL:
{
cpfunc_T *cpfunc = &iptr->isn_arg.pfunc;
smsg("%4d PCALL%s (argc %d)", current,
cpfunc->cpf_top ? " top" : "", cpfunc->cpf_argcount);
}
break;
case ISN_RETURN:
smsg("%4d RETURN", current);
break;
case ISN_FUNCREF:
{
dfunc_T *df = ((dfunc_T *)def_functions.ga_data)
+ iptr->isn_arg.number;
smsg("%4d FUNCREF %s", current, df->df_ufunc->uf_name);
}
break;
case ISN_JUMP:
{
char *when = "?";
switch (iptr->isn_arg.jump.jump_when)
{
case JUMP_ALWAYS:
when = "JUMP";
break;
case JUMP_IF_TRUE:
when = "JUMP_IF_TRUE";
break;
case JUMP_AND_KEEP_IF_TRUE:
when = "JUMP_AND_KEEP_IF_TRUE";
break;
case JUMP_IF_FALSE:
when = "JUMP_IF_FALSE";
break;
case JUMP_AND_KEEP_IF_FALSE:
when = "JUMP_AND_KEEP_IF_FALSE";
break;
}
smsg("%4d %s -> %lld", current, when,
iptr->isn_arg.jump.jump_where);
}
break;
case ISN_FOR:
{
forloop_T *forloop = &iptr->isn_arg.forloop;
smsg("%4d FOR $%d -> %d", current,
forloop->for_idx, forloop->for_end);
}
break;
case ISN_TRY:
{
try_T *try = &iptr->isn_arg.try;
smsg("%4d TRY catch -> %d, finally -> %d", current,
try->try_catch, try->try_finally);
}
break;
case ISN_CATCH:
// TODO
smsg("%4d CATCH", current);
break;
case ISN_ENDTRY:
smsg("%4d ENDTRY", current);
break;
case ISN_THROW:
smsg("%4d THROW", current);
break;
// expression operations on number
case ISN_OPNR:
case ISN_OPFLOAT:
case ISN_OPANY:
{
char *what;
char *ins;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: what = "*"; break;
case EXPR_DIV: what = "/"; break;
case EXPR_REM: what = "%"; break;
case EXPR_SUB: what = "-"; break;
case EXPR_ADD: what = "+"; break;
default: what = "???"; break;
}
switch (iptr->isn_type)
{
case ISN_OPNR: ins = "OPNR"; break;
case ISN_OPFLOAT: ins = "OPFLOAT"; break;
case ISN_OPANY: ins = "OPANY"; break;
default: ins = "???"; break;
}
smsg("%4d %s %s", current, ins, what);
}
break;
case ISN_COMPAREBOOL:
case ISN_COMPARESPECIAL:
case ISN_COMPARENR:
case ISN_COMPAREFLOAT:
case ISN_COMPARESTRING:
case ISN_COMPAREBLOB:
case ISN_COMPARELIST:
case ISN_COMPAREDICT:
case ISN_COMPAREFUNC:
case ISN_COMPAREPARTIAL:
case ISN_COMPAREANY:
{
char *p;
char buf[10];
char *type;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_EQUAL: p = "=="; break;
case EXPR_NEQUAL: p = "!="; break;
case EXPR_GREATER: p = ">"; break;
case EXPR_GEQUAL: p = ">="; break;
case EXPR_SMALLER: p = "<"; break;
case EXPR_SEQUAL: p = "<="; break;
case EXPR_MATCH: p = "=~"; break;
case EXPR_IS: p = "is"; break;
case EXPR_ISNOT: p = "isnot"; break;
case EXPR_NOMATCH: p = "!~"; break;
default: p = "???"; break;
}
STRCPY(buf, p);
if (iptr->isn_arg.op.op_ic == TRUE)
strcat(buf, "?");
switch(iptr->isn_type)
{
case ISN_COMPAREBOOL: type = "COMPAREBOOL"; break;
case ISN_COMPARESPECIAL:
type = "COMPARESPECIAL"; break;
case ISN_COMPARENR: type = "COMPARENR"; break;
case ISN_COMPAREFLOAT: type = "COMPAREFLOAT"; break;
case ISN_COMPARESTRING:
type = "COMPARESTRING"; break;
case ISN_COMPAREBLOB: type = "COMPAREBLOB"; break;
case ISN_COMPARELIST: type = "COMPARELIST"; break;
case ISN_COMPAREDICT: type = "COMPAREDICT"; break;
case ISN_COMPAREFUNC: type = "COMPAREFUNC"; break;
case ISN_COMPAREPARTIAL:
type = "COMPAREPARTIAL"; break;
case ISN_COMPAREANY: type = "COMPAREANY"; break;
default: type = "???"; break;
}
smsg("%4d %s %s", current, type, buf);
}
break;
case ISN_ADDLIST: smsg("%4d ADDLIST", current); break;
case ISN_ADDBLOB: smsg("%4d ADDBLOB", current); break;
// expression operations
case ISN_CONCAT: smsg("%4d CONCAT", current); break;
case ISN_INDEX: smsg("%4d INDEX", current); break;
case ISN_MEMBER: smsg("%4d MEMBER %s", current,
iptr->isn_arg.string); break;
case ISN_NEGATENR: smsg("%4d NEGATENR", current); break;
case ISN_CHECKNR: smsg("%4d CHECKNR", current); break;
case ISN_CHECKTYPE: smsg("%4d CHECKTYPE %s stack[%d]", current,
vartype_name(iptr->isn_arg.type.ct_type),
iptr->isn_arg.type.ct_off);
break;
case ISN_2BOOL: if (iptr->isn_arg.number)
smsg("%4d INVERT (!val)", current);
else
smsg("%4d 2BOOL (!!val)", current);
break;
case ISN_2STRING: smsg("%4d 2STRING stack[%d]", current,
iptr->isn_arg.number);
break;
case ISN_DROP: smsg("%4d DROP", current); break;
}
}
#endif
}
/*
* Return TRUE when "tv" is not falsey: non-zero, non-empty string, non-empty
* list, etc. Mostly like what JavaScript does, except that empty list and
* empty dictionary are FALSE.
*/
int
tv2bool(typval_T *tv)
{
switch (tv->v_type)
{
case VAR_NUMBER:
return tv->vval.v_number != 0;
case VAR_FLOAT:
#ifdef FEAT_FLOAT
return tv->vval.v_float != 0.0;
#else
break;
#endif
case VAR_PARTIAL:
return tv->vval.v_partial != NULL;
case VAR_FUNC:
case VAR_STRING:
return tv->vval.v_string != NULL && *tv->vval.v_string != NUL;
case VAR_LIST:
return tv->vval.v_list != NULL && tv->vval.v_list->lv_len > 0;
case VAR_DICT:
return tv->vval.v_dict != NULL
&& tv->vval.v_dict->dv_hashtab.ht_used > 0;
case VAR_BOOL:
case VAR_SPECIAL:
return tv->vval.v_number == VVAL_TRUE ? TRUE : FALSE;
case VAR_JOB:
#ifdef FEAT_JOB_CHANNEL
return tv->vval.v_job != NULL;
#else
break;
#endif
case VAR_CHANNEL:
#ifdef FEAT_JOB_CHANNEL
return tv->vval.v_channel != NULL;
#else
break;
#endif
case VAR_BLOB:
return tv->vval.v_blob != NULL && tv->vval.v_blob->bv_ga.ga_len > 0;
case VAR_UNKNOWN:
case VAR_VOID:
break;
}
return FALSE;
}
/*
* If "tv" is a string give an error and return FAIL.
*/
int
check_not_string(typval_T *tv)
{
if (tv->v_type == VAR_STRING)
{
emsg(_("E1030: Using a String as a Number"));
clear_tv(tv);
return FAIL;
}
return OK;
}
#endif // FEAT_EVAL
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