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vim-patch:8.2.1047: Vim9: script cannot use line continuation like :def function

Browse Source 
Problem:    Vim9: script cannot use line continuation like in a :def function.
Solution:   Pass the getline function pointer to the eval() functions.  Use it
            for addition and multiplication operators.

5409f5d8c9

Omit source_nextline() and eval_next_non_blank(): Vim9 script only.

N/A patches for version.c:

vim-patch:8.2.1048: build failure without the eval feature

Problem:    Build failure without the eval feature.
Solution:   Add dummy typedef.

9d40c63c7d

vim-patch:8.2.1052: build failure with older compilers

Problem:    Build failure with older compilers.
Solution:   Move declaration to start of block.

7acde51832

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
zeertzjq
2023-04-14 07:22:01 +08:00
parent f64f6706e5
commit bd83b587b1
9 changed files with 127 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/nvim/api/vimscript.c
View File

@@ -172,7 +172,7 @@ Object nvim_eval(String expr, Error *err)
int ok;
TRY_WRAP(err, {
ok = eval0(expr.data, &rettv, NULL, EVAL_EVALUATE);
ok = eval0(expr.data, &rettv, NULL, &EVALARG_EVALUATE);
});
if (!ERROR_SET(err)) {
@@ -290,7 +290,7 @@ Object nvim_call_dict_function(Object dict, String fn, Array args, Error *err)
switch (dict.type) {
case kObjectTypeString:
try_start();
if (eval0(dict.data.string.data, &rettv, NULL, EVAL_EVALUATE) == FAIL) {
if (eval0(dict.data.string.data, &rettv, NULL, &EVALARG_EVALUATE) == FAIL) {
api_set_error(err, kErrorTypeException,
"Failed to evaluate dict expression");
}

148
src/nvim/eval.c
View File

@@ -706,7 +706,7 @@ int eval_to_bool(char *arg, bool *error, char **nextcmd, int skip)
if (skip) {
emsg_skip++;
}
if (eval0(arg, &tv, nextcmd, skip ? 0 : EVAL_EVALUATE) == FAIL) {
if (eval0(arg, &tv, nextcmd, skip ? NULL : &EVALARG_EVALUATE) == FAIL) {
*error = true;
} else {
*error = false;
@@ -730,7 +730,7 @@ static int eval1_emsg(char **arg, typval_T *rettv, bool evaluate)
const int did_emsg_before = did_emsg;
const int called_emsg_before = called_emsg;
const int ret = eval1(arg, rettv, evaluate ? EVAL_EVALUATE : 0);
const int ret = eval1(arg, rettv, evaluate ? &EVALARG_EVALUATE : NULL);
if (ret == FAIL) {
// Report the invalid expression unless the expression evaluation has
// been cancelled due to an aborting error, an interrupt, or an
@@ -832,7 +832,8 @@ char *eval_to_string_skip(const char *arg, const char **nextcmd, const bool skip
if (skip) {
emsg_skip++;
}
if (eval0((char *)arg, &tv, (char **)nextcmd, skip ? 0 : EVAL_EVALUATE) == FAIL || skip) {
if (eval0((char *)arg, &tv, (char **)nextcmd, skip ? NULL : &EVALARG_EVALUATE)
== FAIL || skip) {
retval = NULL;
} else {
retval = xstrdup(tv_get_string(&tv));
@@ -853,7 +854,7 @@ int skip_expr(char **pp)
typval_T rettv;
*pp = skipwhite(*pp);
return eval1(pp, &rettv, 0);
return eval1(pp, &rettv, NULL);
}
/// Top level evaluation function, returning a string.
@@ -868,7 +869,7 @@ char *eval_to_string(char *arg, char **nextcmd, bool convert)
char *retval;
garray_T ga;
if (eval0(arg, &tv, nextcmd, EVAL_EVALUATE) == FAIL) {
if (eval0(arg, &tv, nextcmd, &EVALARG_EVALUATE) == FAIL) {
retval = NULL;
} else {
if (convert && tv.v_type == VAR_LIST) {
@@ -929,7 +930,7 @@ varnumber_T eval_to_number(char *expr)
emsg_off++;
if (eval1(&p, &rettv, EVAL_EVALUATE) == FAIL) {
if (eval1(&p, &rettv, &EVALARG_EVALUATE) == FAIL) {
retval = -1;
} else {
retval = tv_get_number_chk(&rettv, NULL);
@@ -947,7 +948,7 @@ varnumber_T eval_to_number(char *expr)
typval_T *eval_expr(char *arg)
{
typval_T *tv = xmalloc(sizeof(*tv));
if (eval0(arg, tv, NULL, EVAL_EVALUATE) == FAIL) {
if (eval0(arg, tv, NULL, &EVALARG_EVALUATE) == FAIL) {
XFREE_CLEAR(tv);
}
return tv;
@@ -1024,7 +1025,7 @@ list_T *eval_spell_expr(char *badword, char *expr)
emsg_off++;
}
if (eval1(&p, &rettv, EVAL_EVALUATE) == OK) {
if (eval1(&p, &rettv, &EVALARG_EVALUATE) == OK) {
if (rettv.v_type != VAR_LIST) {
tv_clear(&rettv);
} else {
@@ -1171,7 +1172,7 @@ int eval_foldexpr(char *arg, int *cp)
}
textlock++;
*cp = NUL;
if (eval0(arg, &tv, NULL, EVAL_EVALUATE) == FAIL) {
if (eval0(arg, &tv, NULL, &EVALARG_EVALUATE) == FAIL) {
retval = 0;
} else {
// If the result is a number, just return the number.
@@ -1346,7 +1347,7 @@ char *get_lval(char *const name, typval_T *const rettv, lval_T *const lp, const
empty1 = true;
} else {
empty1 = false;
if (eval1(&p, &var1, EVAL_EVALUATE) == FAIL) { // Recursive!
if (eval1(&p, &var1, &EVALARG_EVALUATE) == FAIL) { // Recursive!
return NULL;
}
if (!tv_check_str(&var1)) {
@@ -1381,7 +1382,7 @@ char *get_lval(char *const name, typval_T *const rettv, lval_T *const lp, const
} else {
lp->ll_empty2 = false;
// Recursive!
if (eval1(&p, &var2, EVAL_EVALUATE) == FAIL) {
if (eval1(&p, &var2, &EVALARG_EVALUATE) == FAIL) {
tv_clear(&var1);
return NULL;
}
@@ -1784,6 +1785,7 @@ void *eval_for_line(const char *arg, bool *errp, char **nextcmdp, int skip)
typval_T tv;
list_T *l;
evalarg_T evalarg = { .eval_flags = skip ? 0 : EVAL_EVALUATE };
*errp = true; // Default: there is an error.
expr = skip_var_list(arg, &fi->fi_varcount, &fi->fi_semicolon);
@@ -1800,7 +1802,7 @@ void *eval_for_line(const char *arg, bool *errp, char **nextcmdp, int skip)
if (skip) {
emsg_skip++;
}
if (eval0(skipwhite(expr + 2), &tv, nextcmdp, skip ? 0 : EVAL_EVALUATE) == OK) {
if (eval0(skipwhite(expr + 2), &tv, nextcmdp, &evalarg) == OK) {
*errp = false;
if (!skip) {
if (tv.v_type == VAR_LIST) {
@@ -2225,10 +2227,10 @@ static int eval_func(char **const arg, char *const name, const int name_len, typ
/// Put the result in "rettv" when returning OK and "evaluate" is true.
/// Note: "rettv.v_lock" is not set.
///
/// @param flags has EVAL_EVALUATE and similar flags.
/// @param evalarg can be NULL, &EVALARG_EVALUATE or a pointer.
///
/// @return OK or FAIL.
int eval0(char *arg, typval_T *rettv, char **nextcmd, const int flags)
int eval0(char *arg, typval_T *rettv, char **nextcmd, evalarg_T *const evalarg)
{
int ret;
char *p;
@@ -2237,7 +2239,7 @@ int eval0(char *arg, typval_T *rettv, char **nextcmd, const int flags)
bool end_error = false;
p = skipwhite(arg);
ret = eval1(&p, rettv, flags);
ret = eval1(&p, rettv, evalarg);
if (ret != FAIL) {
end_error = !ends_excmd(*p);
@@ -2277,20 +2279,20 @@ int eval0(char *arg, typval_T *rettv, char **nextcmd, const int flags)
/// Note: "rettv.v_lock" is not set.
///
/// @return OK or FAIL.
int eval1(char **arg, typval_T *rettv, const int flags)
int eval1(char **arg, typval_T *rettv, evalarg_T *const evalarg)
{
typval_T var2;
// Get the first variable.
if (eval2(arg, rettv, flags) == FAIL) {
if (eval2(arg, rettv, evalarg) == FAIL) {
return FAIL;
}
if ((*arg)[0] == '?') {
const bool evaluate = flags & EVAL_EVALUATE;
evalarg_T nested_evalarg = evalarg == NULL ? (evalarg_T){ 0 } : *evalarg;
const int orig_flags = evalarg == NULL ? 0 : evalarg->eval_flags;
const bool evaluate = nested_evalarg.eval_flags & EVAL_EVALUATE;
bool result = false;
if (flags & EVAL_EVALUATE) {
if (evaluate) {
bool error = false;
if (tv_get_number_chk(rettv, &error) != 0) {
@@ -2304,7 +2306,8 @@ int eval1(char **arg, typval_T *rettv, const int flags)
// Get the second variable. Recursive!
*arg = skipwhite(*arg + 1);
if (eval1(arg, rettv, result ? flags : flags & ~EVAL_EVALUATE) == FAIL) {
nested_evalarg.eval_flags = result ? orig_flags : orig_flags & ~EVAL_EVALUATE;
if (eval1(arg, rettv, &nested_evalarg) == FAIL) {
return FAIL;
}
@@ -2319,7 +2322,9 @@ int eval1(char **arg, typval_T *rettv, const int flags)
// Get the third variable. Recursive!
*arg = skipwhite(*arg + 1);
if (eval1(arg, &var2, !result ? flags : flags & ~EVAL_EVALUATE) == FAIL) {
typval_T var2;
nested_evalarg.eval_flags = !result ? orig_flags : orig_flags & ~EVAL_EVALUATE;
if (eval1(arg, &var2, &nested_evalarg) == FAIL) {
if (evaluate && result) {
tv_clear(rettv);
}
@@ -2340,13 +2345,13 @@ int eval1(char **arg, typval_T *rettv, const int flags)
/// "arg" is advanced to the next non-white after the recognized expression.
///
/// @return OK or FAIL.
static int eval2(char **arg, typval_T *rettv, const int flags)
static int eval2(char **arg, typval_T *rettv, evalarg_T *const evalarg)
{
typval_T var2;
bool error = false;
// Get the first variable.
if (eval3(arg, rettv, flags) == FAIL) {
if (eval3(arg, rettv, evalarg) == FAIL) {
return FAIL;
}
@@ -2354,7 +2359,9 @@ static int eval2(char **arg, typval_T *rettv, const int flags)
bool first = true;
bool result = false;
while ((*arg)[0] == '|' && (*arg)[1] == '|') {
const bool evaluate = flags & EVAL_EVALUATE;
evalarg_T nested_evalarg = evalarg == NULL ? (evalarg_T){ 0 } : *evalarg;
const int orig_flags = evalarg == NULL ? 0 : evalarg->eval_flags;
const bool evaluate = orig_flags & EVAL_EVALUATE;
if (evaluate && first) {
if (tv_get_number_chk(rettv, &error) != 0) {
@@ -2369,7 +2376,8 @@ static int eval2(char **arg, typval_T *rettv, const int flags)
// Get the second variable.
*arg = skipwhite(*arg + 2);
if (eval3(arg, &var2, !result ? flags : flags & ~EVAL_EVALUATE) == FAIL) {
nested_evalarg.eval_flags = !result ? orig_flags : orig_flags & ~EVAL_EVALUATE;
if (eval3(arg, &var2, &nested_evalarg) == FAIL) {
return FAIL;
}
@@ -2399,13 +2407,13 @@ static int eval2(char **arg, typval_T *rettv, const int flags)
/// `arg` is advanced to the next non-white after the recognized expression.
///
/// @return OK or FAIL.
static int eval3(char **arg, typval_T *rettv, const int flags)
static int eval3(char **arg, typval_T *rettv, evalarg_T *const evalarg)
{
typval_T var2;
bool error = false;
// Get the first variable.
if (eval4(arg, rettv, flags) == FAIL) {
if (eval4(arg, rettv, evalarg) == FAIL) {
return FAIL;
}
@@ -2413,7 +2421,9 @@ static int eval3(char **arg, typval_T *rettv, const int flags)
bool first = true;
bool result = true;
while ((*arg)[0] == '&' && (*arg)[1] == '&') {
const bool evaluate = flags & EVAL_EVALUATE;
evalarg_T nested_evalarg = evalarg == NULL ? (evalarg_T){ 0 } : *evalarg;
const int orig_flags = evalarg == NULL ? 0 : evalarg->eval_flags;
const bool evaluate = orig_flags & EVAL_EVALUATE;
if (evaluate && first) {
if (tv_get_number_chk(rettv, &error) == 0) {
@@ -2428,7 +2438,8 @@ static int eval3(char **arg, typval_T *rettv, const int flags)
// Get the second variable.
*arg = skipwhite(*arg + 2);
if (eval4(arg, &var2, result ? flags : flags & ~EVAL_EVALUATE) == FAIL) {
nested_evalarg.eval_flags = result ? orig_flags : orig_flags & ~EVAL_EVALUATE;
if (eval4(arg, &var2, &nested_evalarg) == FAIL) {
return FAIL;
}
@@ -2467,7 +2478,7 @@ static int eval3(char **arg, typval_T *rettv, const int flags)
/// "arg" is advanced to the next non-white after the recognized expression.
///
/// @return OK or FAIL.
static int eval4(char **arg, typval_T *rettv, const int flags)
static int eval4(char **arg, typval_T *rettv, evalarg_T *const evalarg)
{
typval_T var2;
char *p;
@@ -2475,7 +2486,7 @@ static int eval4(char **arg, typval_T *rettv, const int flags)
int len = 2;
// Get the first variable.
if (eval5(arg, rettv, flags) == FAIL) {
if (eval5(arg, rettv, evalarg) == FAIL) {
return FAIL;
}
@@ -2539,11 +2550,11 @@ static int eval4(char **arg, typval_T *rettv, const int flags)
// Get the second variable.
*arg = skipwhite(p + len);
if (eval5(arg, &var2, flags) == FAIL) {
if (eval5(arg, &var2, evalarg) == FAIL) {
tv_clear(rettv);
return FAIL;
}
if (flags & EVAL_EVALUATE) {
if (evalarg != NULL && (evalarg->eval_flags & EVAL_EVALUATE)) {
const int ret = typval_compare(rettv, &var2, type, ic);
tv_clear(&var2);
@@ -2597,27 +2608,25 @@ static int eval_addlist(typval_T *tv1, typval_T *tv2)
/// `arg` is advanced to the next non-white after the recognized expression.
///
/// @return OK or FAIL.
static int eval5(char **arg, typval_T *rettv, const int flags)
static int eval5(char **arg, typval_T *rettv, evalarg_T *const evalarg)
{
typval_T var2;
varnumber_T n1, n2;
float_T f1 = 0, f2 = 0;
char *p;
const bool evaluate = evalarg == NULL ? 0 : (evalarg->eval_flags & EVAL_EVALUATE);
// Get the first variable.
if (eval6(arg, rettv, flags, false) == FAIL) {
if (eval6(arg, rettv, evalarg, false) == FAIL) {
return FAIL;
}
// Repeat computing, until no '+', '-' or '.' is following.
for (;;) {
int op = (uint8_t)(**arg);
if (op != '+' && op != '-' && op != '.') {
bool concat = op == '.';
if (op != '+' && op != '-' && !concat) {
break;
}
if ((op != '+' || (rettv->v_type != VAR_LIST && rettv->v_type != VAR_BLOB))
&& (op == '.' || rettv->v_type != VAR_FLOAT) && (flags & EVAL_EVALUATE)) {
&& (op == '.' || rettv->v_type != VAR_FLOAT) && evaluate) {
// For "list + ...", an illegal use of the first operand as
// a number cannot be determined before evaluating the 2nd
// operand: if this is also a list, all is ok.
@@ -2636,12 +2645,13 @@ static int eval5(char **arg, typval_T *rettv, const int flags)
(*arg)++;
}
*arg = skipwhite(*arg + 1);
if (eval6(arg, &var2, flags, op == '.') == FAIL) {
typval_T var2;
if (eval6(arg, &var2, evalarg, op == '.') == FAIL) {
tv_clear(rettv);
return FAIL;
}
if (flags & EVAL_EVALUATE) {
if (evaluate) {
// Compute the result.
if (op == '.') {
char buf1[NUMBUFLEN];
@@ -2654,7 +2664,7 @@ static int eval5(char **arg, typval_T *rettv, const int flags)
tv_clear(&var2);
return FAIL;
}
p = concat_str(s1, s2);
char *p = concat_str(s1, s2);
tv_clear(rettv);
rettv->v_type = VAR_STRING;
rettv->vval.v_string = p;
@@ -2666,6 +2676,8 @@ static int eval5(char **arg, typval_T *rettv, const int flags)
}
} else {
bool error = false;
varnumber_T n1, n2;
float_T f1 = 0, f2 = 0;
if (rettv->v_type == VAR_FLOAT) {
f1 = rettv->vval.v_float;
@@ -2738,7 +2750,7 @@ static int eval5(char **arg, typval_T *rettv, const int flags)
/// @param[in] want_string True if "." is string_concatenation, otherwise
/// float
/// @return OK or FAIL.
static int eval6(char **arg, typval_T *rettv, const int flags, bool want_string)
static int eval6(char **arg, typval_T *rettv, evalarg_T *const evalarg, bool want_string)
FUNC_ATTR_NO_SANITIZE_UNDEFINED
{
typval_T var2;
@@ -2749,18 +2761,19 @@ static int eval6(char **arg, typval_T *rettv, const int flags, bool want_string)
bool error = false;
// Get the first variable.
if (eval7(arg, rettv, flags, want_string) == FAIL) {
if (eval7(arg, rettv, evalarg, want_string) == FAIL) {
return FAIL;
}
// Repeat computing, until no '*', '/' or '%' is following.
for (;;) {
const bool evaluate = evalarg == NULL ? 0 : (evalarg->eval_flags & EVAL_EVALUATE);
op = (uint8_t)(**arg);
if (op != '*' && op != '/' && op != '%') {
break;
}
if (flags & EVAL_EVALUATE) {
if (evaluate) {
if (rettv->v_type == VAR_FLOAT) {
f1 = rettv->vval.v_float;
use_float = true;
@@ -2778,11 +2791,11 @@ static int eval6(char **arg, typval_T *rettv, const int flags, bool want_string)
// Get the second variable.
*arg = skipwhite(*arg + 1);
if (eval7(arg, &var2, flags, false) == FAIL) {
if (eval7(arg, &var2, evalarg, false) == FAIL) {
return FAIL;
}
if (flags & EVAL_EVALUATE) {
if (evaluate) {
if (var2.v_type == VAR_FLOAT) {
if (!use_float) {
f1 = (float_T)n1;
@@ -2869,9 +2882,10 @@ static int eval6(char **arg, typval_T *rettv, const int flags, bool want_string)
/// @param want_string after "." operator
///
/// @return OK or FAIL.
static int eval7(char **arg, typval_T *rettv, const int flags, bool want_string)
static int eval7(char **arg, typval_T *rettv, evalarg_T *const evalarg, bool want_string)
{
const bool evaluate = flags & EVAL_EVALUATE;
const int flags = evalarg == NULL ? 0 : evalarg->eval_flags;
const bool evaluate = evalarg != NULL && (evalarg->eval_flags & EVAL_EVALUATE);
int ret = OK;
static int recurse = 0;
@@ -2979,7 +2993,7 @@ static int eval7(char **arg, typval_T *rettv, const int flags, bool want_string)
// nested expression: (expression).
case '(':
*arg = skipwhite(*arg + 1);
ret = eval1(arg, rettv, flags); // recursive!
ret = eval1(arg, rettv, evalarg); // recursive!
if (**arg == ')') {
(*arg)++;
} else if (ret == OK) {
@@ -3319,13 +3333,15 @@ static int eval_index(char **arg, typval_T *rettv, const int flags, bool verbose
}
*arg = skipwhite(key + len);
} else {
evalarg_T evalarg = { .eval_flags = flags };
// something[idx]
//
// Get the (first) variable from inside the [].
*arg = skipwhite(*arg + 1);
if (**arg == ':') {
empty1 = true;
} else if (eval1(arg, &var1, flags) == FAIL) { // Recursive!
} else if (eval1(arg, &var1, &evalarg) == FAIL) { // Recursive!
return FAIL;
} else if (evaluate && !tv_check_str(&var1)) {
// Not a number or string.
@@ -3339,7 +3355,7 @@ static int eval_index(char **arg, typval_T *rettv, const int flags, bool verbose
*arg = skipwhite(*arg + 1);
if (**arg == ']') {
empty2 = true;
} else if (eval1(arg, &var2, flags) == FAIL) { // Recursive!
} else if (eval1(arg, &var2, &evalarg) == FAIL) { // Recursive!
if (!empty1) {
tv_clear(&var1);
}
@@ -3947,6 +3963,8 @@ static int get_list_tv(char **arg, typval_T *rettv, const int flags)
const bool evaluate = flags & EVAL_EVALUATE;
list_T *l = NULL;
evalarg_T evalarg = { .eval_flags = flags };
if (evaluate) {
l = tv_list_alloc(kListLenShouldKnow);
}
@@ -3954,7 +3972,7 @@ static int get_list_tv(char **arg, typval_T *rettv, const int flags)
*arg = skipwhite(*arg + 1);
while (**arg != ']' && **arg != NUL) {
typval_T tv;
if (eval1(arg, &tv, flags) == FAIL) { // Recursive!
if (eval1(arg, &tv, &evalarg) == FAIL) { // Recursive!
goto failret;
}
if (evaluate) {
@@ -4586,7 +4604,9 @@ static int get_literal_key(char **arg, typval_T *tv)
}
/// Allocate a variable for a Dictionary and fill it from "*arg".
/// "literal" is true for #{key: val}
///
/// @param literal true for #{key: val}
/// @param flags can have EVAL_EVALUATE and other EVAL_ flags.
///
/// @return OK or FAIL. Returns NOTDONE for {expr}.
static int eval_dict(char **arg, typval_T *rettv, const int flags, bool literal)
@@ -4597,6 +4617,8 @@ static int eval_dict(char **arg, typval_T *rettv, const int flags, bool literal)
char *curly_expr = skipwhite(*arg + 1);
char buf[NUMBUFLEN];
evalarg_T evalarg = { .eval_flags = flags };
// First check if it's not a curly-braces expression: {expr}.
// Must do this without evaluating, otherwise a function may be called
// twice. Unfortunately this means we need to call eval1() twice for the
@@ -4605,7 +4627,7 @@ static int eval_dict(char **arg, typval_T *rettv, const int flags, bool literal)
// "#{abc}" is never a curly-braces expression.
if (*curly_expr != '}'
&& !literal
&& eval1(&curly_expr, &tv, 0) == OK
&& eval1(&curly_expr, &tv, NULL) == OK
&& *skipwhite(curly_expr) == '}') {
return NOTDONE;
}
@@ -4622,7 +4644,7 @@ static int eval_dict(char **arg, typval_T *rettv, const int flags, bool literal)
while (**arg != '}' && **arg != NUL) {
if ((literal
? get_literal_key(arg, &tvkey)
: eval1(arg, &tvkey, flags)) == FAIL) { // recursive!
: eval1(arg, &tvkey, &evalarg)) == FAIL) { // recursive!
goto failret;
}
if (**arg != ':') {
@@ -4640,7 +4662,7 @@ static int eval_dict(char **arg, typval_T *rettv, const int flags, bool literal)
}
*arg = skipwhite(*arg + 1);
if (eval1(arg, &tv, flags) == FAIL) { // Recursive!
if (eval1(arg, &tv, &evalarg) == FAIL) { // Recursive!
if (evaluate) {
tv_clear(&tvkey);
}
@@ -7389,6 +7411,8 @@ void ex_echo(exarg_T *eap)
const int did_emsg_before = did_emsg;
const int called_emsg_before = called_emsg;
evalarg_T evalarg = { .eval_flags = eap->skip ? 0 : EVAL_EVALUATE };
if (eap->skip) {
emsg_skip++;
}
@@ -7399,7 +7423,7 @@ void ex_echo(exarg_T *eap)
{
char *p = arg;
if (eval1(&arg, &rettv, eap->skip ? 0 : EVAL_EVALUATE) == FAIL) {
if (eval1(&arg, &rettv, &evalarg) == FAIL) {
// Report the invalid expression unless the expression evaluation
// has been cancelled due to an aborting error, an interrupt, or an
// exception.

12
src/nvim/eval.h
View File

@@ -266,11 +266,23 @@ typedef int (*ex_unletlock_callback)(lval_T *, char *, exarg_T *, int);
// Used for checking if local variables or arguments used in a lambda.
extern bool *eval_lavars_used;
/// Struct passed through eval() functions.
/// See EVALARG_EVALUATE for a fixed value with eval_flags set to EVAL_EVALUATE.
typedef struct {
int eval_flags; ///< EVAL_ flag values below
/// copied from exarg_T when "getline" is "getsourceline". Can be NULL.
void *eval_cookie; // argument for getline()
} evalarg_T;
/// Flag for expression evaluation.
enum {
EVAL_EVALUATE = 1, ///< when missing don't actually evaluate
};
/// Passed to an eval() function to enable evaluation.
EXTERN evalarg_T EVALARG_EVALUATE INIT(= { EVAL_EVALUATE, NULL });
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "eval.h.generated.h"
#endif

2
src/nvim/eval/funcs.c
View File

@@ -1550,7 +1550,7 @@ static void f_eval(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
}
const char *const expr_start = s;
if (s == NULL || eval1((char **)&s, rettv, EVAL_EVALUATE) == FAIL) {
if (s == NULL || eval1((char **)&s, rettv, &EVALARG_EVALUATE) == FAIL) {
if (expr_start != NULL && !aborting()) {
semsg(_(e_invexpr2), expr_start);
}

17
src/nvim/eval/userfunc.c
View File

@@ -152,7 +152,7 @@ static int get_function_args(char **argp, char endchar, garray_T *newargs, int *
p = skipwhite(p) + 1;
p = skipwhite(p);
char *expr = p;
if (eval1(&p, &rettv, 0) != FAIL) {
if (eval1(&p, &rettv, NULL) != FAIL) {
ga_grow(default_args, 1);
// trim trailing whitespace
@@ -455,6 +455,8 @@ int get_func_tv(const char *name, int len, typval_T *rettv, char **arg, funcexe_
typval_T argvars[MAX_FUNC_ARGS + 1]; // vars for arguments
int argcount = 0; // number of arguments found
evalarg_T evalarg = { .eval_flags = funcexe->fe_evaluate ? EVAL_EVALUATE : 0 };
// Get the arguments.
argp = *arg;
while (argcount < MAX_FUNC_ARGS
@@ -463,8 +465,7 @@ int get_func_tv(const char *name, int len, typval_T *rettv, char **arg, funcexe_
if (*argp == ')' || *argp == ',' || *argp == NUL) {
break;
}
if (eval1(&argp, &argvars[argcount],
funcexe->fe_evaluate ? EVAL_EVALUATE : 0) == FAIL) {
if (eval1(&argp, &argvars[argcount], &evalarg) == FAIL) {
ret = FAIL;
break;
}
@@ -973,7 +974,7 @@ void call_user_func(ufunc_T *fp, int argcount, typval_T *argvars, typval_T *rett
default_expr = ((char **)(fp->uf_def_args.ga_data))
[ai + fp->uf_def_args.ga_len];
if (eval1(&default_expr, &def_rettv, EVAL_EVALUATE) == FAIL) {
if (eval1(&default_expr, &def_rettv, &EVALARG_EVALUATE) == FAIL) {
default_arg_err = true;
break;
}
@@ -1110,7 +1111,7 @@ void call_user_func(ufunc_T *fp, int argcount, typval_T *argvars, typval_T *rett
// A Lambda always has the command "return {expr}". It is much faster
// to evaluate {expr} directly.
ex_nesting_level++;
(void)eval1(&p, rettv, EVAL_EVALUATE);
(void)eval1(&p, rettv, &EVALARG_EVALUATE);
ex_nesting_level--;
} else {
// call do_cmdline() to execute the lines
@@ -2948,13 +2949,15 @@ void ex_return(exarg_T *eap)
return;
}
evalarg_T evalarg = { .eval_flags = eap->skip ? 0 : EVAL_EVALUATE };
if (eap->skip) {
emsg_skip++;
}
eap->nextcmd = NULL;
if ((*arg != NUL && *arg != '|' && *arg != '\n')
&& eval0(arg, &rettv, &eap->nextcmd, eap->skip ? 0 : EVAL_EVALUATE) != FAIL) {
&& eval0(arg, &rettv, &eap->nextcmd, &evalarg) != FAIL) {
if (!eap->skip) {
returning = do_return(eap, false, true, &rettv);
} else {
@@ -3005,7 +3008,7 @@ void ex_call(exarg_T *eap)
// instead to skip to any following command, e.g. for:
// :if 0 | call dict.foo().bar() | endif.
emsg_skip++;
if (eval0(eap->arg, &rettv, &eap->nextcmd, 0) != FAIL) {
if (eval0(eap->arg, &rettv, &eap->nextcmd, NULL) != FAIL) {
tv_clear(&rettv);
}
emsg_skip--;

11
src/nvim/eval/vars.c
View File

@@ -255,13 +255,18 @@ void ex_let(exarg_T *eap)
if (eap->skip) {
emsg_skip++;
}
int eval_flags = eap->skip ? 0 : EVAL_EVALUATE;
i = eval0(expr, &rettv, &eap->nextcmd, eval_flags);
evalarg_T evalarg = {
.eval_flags = eap->skip ? 0 : EVAL_EVALUATE,
.eval_cookie = eap->getline == getsourceline ? eap->cookie : NULL,
};
i = eval0(expr, &rettv, &eap->nextcmd, &evalarg);
if (eap->skip) {
emsg_skip--;
}
if (eap->skip) {
if (i != FAIL) {
tv_clear(&rettv);
}
emsg_skip--;
} else if (i != FAIL) {
(void)ex_let_vars(eap->arg, &rettv, false, semicolon, var_count, is_const, op);
tv_clear(&rettv);

7
src/nvim/ex_eval.c
View File

@@ -792,8 +792,11 @@ void report_discard_pending(int pending, void *value)
void ex_eval(exarg_T *eap)
{
typval_T tv;
if (eval0(eap->arg, &tv, &eap->nextcmd, eap->skip ? 0 : EVAL_EVALUATE) == OK) {
evalarg_T evalarg = {
.eval_flags = eap->skip ? 0 : EVAL_EVALUATE,
.eval_cookie = eap->getline == getsourceline ? eap->cookie : NULL,
};
if (eval0(eap->arg, &tv, &eap->nextcmd, &evalarg) == OK) {
tv_clear(&tv);
}
}

2
src/nvim/quickfix.c
View File

@@ -6958,7 +6958,7 @@ void ex_cexpr(exarg_T *eap)
// Evaluate the expression. When the result is a string or a list we can
// use it to fill the errorlist.
typval_T tv;
if (eval0(eap->arg, &tv, &eap->nextcmd, EVAL_EVALUATE) == FAIL) {
if (eval0(eap->arg, &tv, &eap->nextcmd, &EVALARG_EVALUATE) == FAIL) {
return;
}

3
test/unit/eval/helpers.lua
View File

@@ -512,7 +512,8 @@ end
local function eval0(expr)
local tv = ffi.gc(ffi.new('typval_T', {v_type=eval.VAR_UNKNOWN}),
eval.tv_clear)
if eval.eval0(to_cstr(expr), tv, nil, eval.EVAL_EVALUATE) == 0 then
local evalarg = ffi.new('evalarg_T', {eval_flags = eval.EVAL_EVALUATE})
if eval.eval0(to_cstr(expr), tv, nil, evalarg) == 0 then
return nil
else
return tv