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vim9compile.c
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vim9compile.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.
*/
/*
* vim9compile.c: :def and dealing with instructions
*/
#define USING_FLOAT_STUFF
#include "vim.h"
#if defined(FEAT_EVAL) || defined(PROTO)
#ifdef VMS
# include <float.h>
#endif
#define DEFINE_VIM9_GLOBALS
#include "vim9.h"
/*
* Chain of jump instructions where the end label needs to be set.
*/
typedef struct endlabel_S endlabel_T;
struct endlabel_S {
endlabel_T *el_next; // chain end_label locations
int el_end_label; // instruction idx where to set end
};
/*
* info specific for the scope of :if / elseif / else
*/
typedef struct {
int is_if_label; // instruction idx at IF or ELSEIF
endlabel_T *is_end_label; // instructions to set end label
} ifscope_T;
/*
* info specific for the scope of :while
*/
typedef struct {
int ws_top_label; // instruction idx at WHILE
endlabel_T *ws_end_label; // instructions to set end
} whilescope_T;
/*
* info specific for the scope of :for
*/
typedef struct {
int fs_top_label; // instruction idx at FOR
endlabel_T *fs_end_label; // break instructions
} forscope_T;
/*
* info specific for the scope of :try
*/
typedef struct {
int ts_try_label; // instruction idx at TRY
endlabel_T *ts_end_label; // jump to :finally or :endtry
int ts_catch_label; // instruction idx of last CATCH
int ts_caught_all; // "catch" without argument encountered
} tryscope_T;
typedef enum {
NO_SCOPE,
IF_SCOPE,
WHILE_SCOPE,
FOR_SCOPE,
TRY_SCOPE,
BLOCK_SCOPE
} scopetype_T;
/*
* Info for one scope, pointed to by "ctx_scope".
*/
typedef struct scope_S scope_T;
struct scope_S {
scope_T *se_outer; // scope containing this one
scopetype_T se_type;
int se_local_count; // ctx_locals.ga_len before scope
union {
ifscope_T se_if;
whilescope_T se_while;
forscope_T se_for;
tryscope_T se_try;
} se_u;
};
/*
* Entry for "ctx_locals". Used for arguments and local variables.
*/
typedef struct {
char_u *lv_name;
type_T *lv_type;
int lv_const; // when TRUE cannot be assigned to
int lv_arg; // when TRUE this is an argument
} lvar_T;
/*
* Context for compiling lines of Vim script.
* Stores info about the local variables and condition stack.
*/
struct cctx_S {
ufunc_T *ctx_ufunc; // current function
int ctx_lnum; // line number in current function
garray_T ctx_instr; // generated instructions
garray_T ctx_locals; // currently visible local variables
int ctx_max_local; // maximum number of locals at one time
garray_T ctx_imports; // imported items
int ctx_skip; // when TRUE skip commands, when FALSE skip
// commands after "else"
scope_T *ctx_scope; // current scope, NULL at toplevel
garray_T ctx_type_stack; // type of each item on the stack
garray_T *ctx_type_list; // space for adding types
};
static char e_var_notfound[] = N_("E1001: variable not found: %s");
static char e_syntax_at[] = N_("E1002: Syntax error at %s");
static int compile_expr1(char_u **arg, cctx_T *cctx);
static int compile_expr2(char_u **arg, cctx_T *cctx);
static int compile_expr3(char_u **arg, cctx_T *cctx);
static void delete_def_function_contents(dfunc_T *dfunc);
/*
* Lookup variable "name" in the local scope and return the index.
*/
static int
lookup_local(char_u *name, size_t len, cctx_T *cctx)
{
int idx;
if (len == 0)
return -1;
for (idx = 0; idx < cctx->ctx_locals.ga_len; ++idx)
{
lvar_T *lvar = ((lvar_T *)cctx->ctx_locals.ga_data) + idx;
if (STRNCMP(name, lvar->lv_name, len) == 0
&& STRLEN(lvar->lv_name) == len)
return idx;
}
return -1;
}
/*
* Lookup an argument in the current function.
* Returns the argument index or -1 if not found.
*/
static int
lookup_arg(char_u *name, size_t len, cctx_T *cctx)
{
int idx;
if (len == 0)
return -1;
for (idx = 0; idx < cctx->ctx_ufunc->uf_args.ga_len; ++idx)
{
char_u *arg = FUNCARG(cctx->ctx_ufunc, idx);
if (STRNCMP(name, arg, len) == 0 && STRLEN(arg) == len)
return idx;
}
return -1;
}
/*
* Lookup a vararg argument in the current function.
* Returns TRUE if there is a match.
*/
static int
lookup_vararg(char_u *name, size_t len, cctx_T *cctx)
{
char_u *va_name = cctx->ctx_ufunc->uf_va_name;
return len > 0 && va_name != NULL
&& STRNCMP(name, va_name, len) == 0 && STRLEN(va_name) == len;
}
/*
* Lookup a variable in the current script.
* Returns OK or FAIL.
*/
static int
lookup_script(char_u *name, size_t len)
{
int cc;
hashtab_T *ht = &SCRIPT_VARS(current_sctx.sc_sid);
dictitem_T *di;
cc = name[len];
name[len] = NUL;
di = find_var_in_ht(ht, 0, name, TRUE);
name[len] = cc;
return di == NULL ? FAIL: OK;
}
/*
* Check if "p[len]" is already defined, either in script "import_sid" or in
* compilation context "cctx".
* Return FAIL and give an error if it defined.
*/
int
check_defined(char_u *p, int len, cctx_T *cctx)
{
if (lookup_script(p, len) == OK
|| (cctx != NULL
&& (lookup_local(p, len, cctx) >= 0
|| find_imported(p, len, cctx) != NULL)))
{
semsg("E1073: imported name already defined: %s", p);
return FAIL;
}
return OK;
}
static type_T *
get_list_type(type_T *member_type, garray_T *type_list)
{
type_T *type;
// recognize commonly used types
if (member_type->tt_type == VAR_UNKNOWN)
return &t_list_any;
if (member_type->tt_type == VAR_VOID)
return &t_list_empty;
if (member_type->tt_type == VAR_BOOL)
return &t_list_bool;
if (member_type->tt_type == VAR_NUMBER)
return &t_list_number;
if (member_type->tt_type == VAR_STRING)
return &t_list_string;
// Not a common type, create a new entry.
if (ga_grow(type_list, 1) == FAIL)
return &t_any;
type = ((type_T *)type_list->ga_data) + type_list->ga_len;
++type_list->ga_len;
type->tt_type = VAR_LIST;
type->tt_member = member_type;
return type;
}
static type_T *
get_dict_type(type_T *member_type, garray_T *type_list)
{
type_T *type;
// recognize commonly used types
if (member_type->tt_type == VAR_UNKNOWN)
return &t_dict_any;
if (member_type->tt_type == VAR_VOID)
return &t_dict_empty;
if (member_type->tt_type == VAR_BOOL)
return &t_dict_bool;
if (member_type->tt_type == VAR_NUMBER)
return &t_dict_number;
if (member_type->tt_type == VAR_STRING)
return &t_dict_string;
// Not a common type, create a new entry.
if (ga_grow(type_list, 1) == FAIL)
return &t_any;
type = ((type_T *)type_list->ga_data) + type_list->ga_len;
++type_list->ga_len;
type->tt_type = VAR_DICT;
type->tt_member = member_type;
return type;
}
/////////////////////////////////////////////////////////////////////
// Following generate_ functions expect the caller to call ga_grow().
#define RETURN_NULL_IF_SKIP(cctx) if (cctx->ctx_skip == TRUE) return NULL
#define RETURN_OK_IF_SKIP(cctx) if (cctx->ctx_skip == TRUE) return OK
/*
* Generate an instruction without arguments.
* Returns a pointer to the new instruction, NULL if failed.
*/
static isn_T *
generate_instr(cctx_T *cctx, isntype_T isn_type)
{
garray_T *instr = &cctx->ctx_instr;
isn_T *isn;
RETURN_NULL_IF_SKIP(cctx);
if (ga_grow(instr, 1) == FAIL)
return NULL;
isn = ((isn_T *)instr->ga_data) + instr->ga_len;
isn->isn_type = isn_type;
isn->isn_lnum = cctx->ctx_lnum + 1;
++instr->ga_len;
return isn;
}
/*
* Generate an instruction without arguments.
* "drop" will be removed from the stack.
* Returns a pointer to the new instruction, NULL if failed.
*/
static isn_T *
generate_instr_drop(cctx_T *cctx, isntype_T isn_type, int drop)
{
garray_T *stack = &cctx->ctx_type_stack;
RETURN_NULL_IF_SKIP(cctx);
stack->ga_len -= drop;
return generate_instr(cctx, isn_type);
}
/*
* Generate instruction "isn_type" and put "type" on the type stack.
*/
static isn_T *
generate_instr_type(cctx_T *cctx, isntype_T isn_type, type_T *type)
{
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;
if ((isn = generate_instr(cctx, isn_type)) == NULL)
return NULL;
if (ga_grow(stack, 1) == FAIL)
return NULL;
((type_T **)stack->ga_data)[stack->ga_len] = type;
++stack->ga_len;
return isn;
}
/*
* If type at "offset" isn't already VAR_STRING then generate ISN_2STRING.
*/
static int
may_generate_2STRING(int offset, cctx_T *cctx)
{
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;
type_T **type = ((type_T **)stack->ga_data) + stack->ga_len + offset;
if ((*type)->tt_type == VAR_STRING)
return OK;
*type = &t_string;
if ((isn = generate_instr(cctx, ISN_2STRING)) == NULL)
return FAIL;
isn->isn_arg.number = offset;
return OK;
}
static int
check_number_or_float(vartype_T type1, vartype_T type2, char_u *op)
{
if (!((type1 == VAR_NUMBER || type1 == VAR_FLOAT || type1 == VAR_UNKNOWN)
&& (type2 == VAR_NUMBER || type2 == VAR_FLOAT
|| type2 == VAR_UNKNOWN)))
{
if (*op == '+')
emsg(_("E1035: wrong argument type for +"));
else
semsg(_("E1036: %c requires number or float arguments"), *op);
return FAIL;
}
return OK;
}
/*
* Generate an instruction with two arguments. The instruction depends on the
* type of the arguments.
*/
static int
generate_two_op(cctx_T *cctx, char_u *op)
{
garray_T *stack = &cctx->ctx_type_stack;
type_T *type1;
type_T *type2;
vartype_T vartype;
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
// Get the known type of the two items on the stack. If they are matching
// use a type-specific instruction. Otherwise fall back to runtime type
// checking.
type1 = ((type_T **)stack->ga_data)[stack->ga_len - 2];
type2 = ((type_T **)stack->ga_data)[stack->ga_len - 1];
vartype = VAR_UNKNOWN;
if (type1->tt_type == type2->tt_type
&& (type1->tt_type == VAR_NUMBER
|| type1->tt_type == VAR_LIST
#ifdef FEAT_FLOAT
|| type1->tt_type == VAR_FLOAT
#endif
|| type1->tt_type == VAR_BLOB))
vartype = type1->tt_type;
switch (*op)
{
case '+': if (vartype != VAR_LIST && vartype != VAR_BLOB
&& type1->tt_type != VAR_UNKNOWN
&& type2->tt_type != VAR_UNKNOWN
&& check_number_or_float(
type1->tt_type, type2->tt_type, op) == FAIL)
return FAIL;
isn = generate_instr_drop(cctx,
vartype == VAR_NUMBER ? ISN_OPNR
: vartype == VAR_LIST ? ISN_ADDLIST
: vartype == VAR_BLOB ? ISN_ADDBLOB
#ifdef FEAT_FLOAT
: vartype == VAR_FLOAT ? ISN_OPFLOAT
#endif
: ISN_OPANY, 1);
if (isn != NULL)
isn->isn_arg.op.op_type = EXPR_ADD;
break;
case '-':
case '*':
case '/': if (check_number_or_float(type1->tt_type, type2->tt_type,
op) == FAIL)
return FAIL;
if (vartype == VAR_NUMBER)
isn = generate_instr_drop(cctx, ISN_OPNR, 1);
#ifdef FEAT_FLOAT
else if (vartype == VAR_FLOAT)
isn = generate_instr_drop(cctx, ISN_OPFLOAT, 1);
#endif
else
isn = generate_instr_drop(cctx, ISN_OPANY, 1);
if (isn != NULL)
isn->isn_arg.op.op_type = *op == '*'
? EXPR_MULT : *op == '/'? EXPR_DIV : EXPR_SUB;
break;
case '%': if ((type1->tt_type != VAR_UNKNOWN
&& type1->tt_type != VAR_NUMBER)
|| (type2->tt_type != VAR_UNKNOWN
&& type2->tt_type != VAR_NUMBER))
{
emsg(_("E1035: % requires number arguments"));
return FAIL;
}
isn = generate_instr_drop(cctx,
vartype == VAR_NUMBER ? ISN_OPNR : ISN_OPANY, 1);
if (isn != NULL)
isn->isn_arg.op.op_type = EXPR_REM;
break;
}
// correct type of result
if (vartype == VAR_UNKNOWN)
{
type_T *type = &t_any;
#ifdef FEAT_FLOAT
// float+number and number+float results in float
if ((type1->tt_type == VAR_NUMBER || type1->tt_type == VAR_FLOAT)
&& (type2->tt_type == VAR_NUMBER || type2->tt_type == VAR_FLOAT))
type = &t_float;
#endif
((type_T **)stack->ga_data)[stack->ga_len - 1] = type;
}
return OK;
}
/*
* Generate an ISN_COMPARE* instruction with a boolean result.
*/
static int
generate_COMPARE(cctx_T *cctx, exptype_T exptype, int ic)
{
isntype_T isntype = ISN_DROP;
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;
vartype_T type1;
vartype_T type2;
RETURN_OK_IF_SKIP(cctx);
// Get the known type of the two items on the stack. If they are matching
// use a type-specific instruction. Otherwise fall back to runtime type
// checking.
type1 = ((type_T **)stack->ga_data)[stack->ga_len - 2]->tt_type;
type2 = ((type_T **)stack->ga_data)[stack->ga_len - 1]->tt_type;
if (type1 == type2)
{
switch (type1)
{
case VAR_BOOL: isntype = ISN_COMPAREBOOL; break;
case VAR_SPECIAL: isntype = ISN_COMPARESPECIAL; break;
case VAR_NUMBER: isntype = ISN_COMPARENR; break;
case VAR_FLOAT: isntype = ISN_COMPAREFLOAT; break;
case VAR_STRING: isntype = ISN_COMPARESTRING; break;
case VAR_BLOB: isntype = ISN_COMPAREBLOB; break;
case VAR_LIST: isntype = ISN_COMPARELIST; break;
case VAR_DICT: isntype = ISN_COMPAREDICT; break;
case VAR_FUNC: isntype = ISN_COMPAREFUNC; break;
case VAR_PARTIAL: isntype = ISN_COMPAREPARTIAL; break;
default: isntype = ISN_COMPAREANY; break;
}
}
else if (type1 == VAR_UNKNOWN || type2 == VAR_UNKNOWN
|| ((type1 == VAR_NUMBER || type1 == VAR_FLOAT)
&& (type2 == VAR_NUMBER || type2 ==VAR_FLOAT)))
isntype = ISN_COMPAREANY;
if ((exptype == EXPR_IS || exptype == EXPR_ISNOT)
&& (isntype == ISN_COMPAREBOOL
|| isntype == ISN_COMPARESPECIAL
|| isntype == ISN_COMPARENR
|| isntype == ISN_COMPAREFLOAT))
{
semsg(_("E1037: Cannot use \"%s\" with %s"),
exptype == EXPR_IS ? "is" : "isnot" , vartype_name(type1));
return FAIL;
}
if (isntype == ISN_DROP
|| ((exptype != EXPR_EQUAL && exptype != EXPR_NEQUAL
&& (type1 == VAR_BOOL || type1 == VAR_SPECIAL
|| type2 == VAR_BOOL || type2 == VAR_SPECIAL)))
|| ((exptype != EXPR_EQUAL && exptype != EXPR_NEQUAL
&& exptype != EXPR_IS && exptype != EXPR_ISNOT
&& (type1 == VAR_BLOB || type2 == VAR_BLOB
|| type1 == VAR_LIST || type2 == VAR_LIST))))
{
semsg(_("E1072: Cannot compare %s with %s"),
vartype_name(type1), vartype_name(type2));
return FAIL;
}
if ((isn = generate_instr(cctx, isntype)) == NULL)
return FAIL;
isn->isn_arg.op.op_type = exptype;
isn->isn_arg.op.op_ic = ic;
// takes two arguments, puts one bool back
if (stack->ga_len >= 2)
{
--stack->ga_len;
((type_T **)stack->ga_data)[stack->ga_len - 1] = &t_bool;
}
return OK;
}
/*
* Generate an ISN_2BOOL instruction.
*/
static int
generate_2BOOL(cctx_T *cctx, int invert)
{
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr(cctx, ISN_2BOOL)) == NULL)
return FAIL;
isn->isn_arg.number = invert;
// type becomes bool
((type_T **)stack->ga_data)[stack->ga_len - 1] = &t_bool;
return OK;
}
static int
generate_TYPECHECK(cctx_T *cctx, type_T *vartype, int offset)
{
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr(cctx, ISN_CHECKTYPE)) == NULL)
return FAIL;
isn->isn_arg.type.ct_type = vartype->tt_type; // TODO: whole type
isn->isn_arg.type.ct_off = offset;
// type becomes vartype
((type_T **)stack->ga_data)[stack->ga_len - 1] = vartype;
return OK;
}
/*
* Generate an ISN_PUSHNR instruction.
*/
static int
generate_PUSHNR(cctx_T *cctx, varnumber_T number)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHNR, &t_number)) == NULL)
return FAIL;
isn->isn_arg.number = number;
return OK;
}
/*
* Generate an ISN_PUSHBOOL instruction.
*/
static int
generate_PUSHBOOL(cctx_T *cctx, varnumber_T number)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHBOOL, &t_bool)) == NULL)
return FAIL;
isn->isn_arg.number = number;
return OK;
}
/*
* Generate an ISN_PUSHSPEC instruction.
*/
static int
generate_PUSHSPEC(cctx_T *cctx, varnumber_T number)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHSPEC, &t_special)) == NULL)
return FAIL;
isn->isn_arg.number = number;
return OK;
}
#ifdef FEAT_FLOAT
/*
* Generate an ISN_PUSHF instruction.
*/
static int
generate_PUSHF(cctx_T *cctx, float_T fnumber)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHF, &t_float)) == NULL)
return FAIL;
isn->isn_arg.fnumber = fnumber;
return OK;
}
#endif
/*
* Generate an ISN_PUSHS instruction.
* Consumes "str".
*/
static int
generate_PUSHS(cctx_T *cctx, char_u *str)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHS, &t_string)) == NULL)
return FAIL;
isn->isn_arg.string = str;
return OK;
}
/*
* Generate an ISN_PUSHCHANNEL instruction.
* Consumes "channel".
*/
static int
generate_PUSHCHANNEL(cctx_T *cctx, channel_T *channel)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHCHANNEL, &t_channel)) == NULL)
return FAIL;
isn->isn_arg.channel = channel;
return OK;
}
/*
* Generate an ISN_PUSHJOB instruction.
* Consumes "job".
*/
static int
generate_PUSHJOB(cctx_T *cctx, job_T *job)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHJOB, &t_channel)) == NULL)
return FAIL;
isn->isn_arg.job = job;
return OK;
}
/*
* Generate an ISN_PUSHBLOB instruction.
* Consumes "blob".
*/
static int
generate_PUSHBLOB(cctx_T *cctx, blob_T *blob)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHBLOB, &t_blob)) == NULL)
return FAIL;
isn->isn_arg.blob = blob;
return OK;
}
/*
* Generate an ISN_PUSHFUNC instruction with name "name".
* Consumes "name".
*/
static int
generate_PUSHFUNC(cctx_T *cctx, char_u *name)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHFUNC, &t_func_void)) == NULL)
return FAIL;
isn->isn_arg.string = name;
return OK;
}
/*
* Generate an ISN_PUSHPARTIAL instruction with partial "part".
* Consumes "name".
*/
static int
generate_PUSHPARTIAL(cctx_T *cctx, partial_T *part)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, ISN_PUSHPARTIAL,
&t_partial_any)) == NULL)
return FAIL;
isn->isn_arg.partial = part;
return OK;
}
/*
* Generate an ISN_STORE instruction.
*/
static int
generate_STORE(cctx_T *cctx, isntype_T isn_type, int idx, char_u *name)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_drop(cctx, isn_type, 1)) == NULL)
return FAIL;
if (name != NULL)
isn->isn_arg.string = vim_strsave(name);
else
isn->isn_arg.number = idx;
return OK;
}
/*
* Generate an ISN_STORENR instruction (short for ISN_PUSHNR + ISN_STORE)
*/
static int
generate_STORENR(cctx_T *cctx, int idx, varnumber_T value)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr(cctx, ISN_STORENR)) == NULL)
return FAIL;
isn->isn_arg.storenr.stnr_idx = idx;
isn->isn_arg.storenr.stnr_val = value;
return OK;
}
/*
* Generate an ISN_STOREOPT instruction
*/
static int
generate_STOREOPT(cctx_T *cctx, char_u *name, int opt_flags)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr(cctx, ISN_STOREOPT)) == NULL)
return FAIL;
isn->isn_arg.storeopt.so_name = vim_strsave(name);
isn->isn_arg.storeopt.so_flags = opt_flags;
return OK;
}
/*
* Generate an ISN_LOAD or similar instruction.
*/
static int
generate_LOAD(
cctx_T *cctx,
isntype_T isn_type,
int idx,
char_u *name,
type_T *type)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr_type(cctx, isn_type, type)) == NULL)
return FAIL;
if (name != NULL)
isn->isn_arg.string = vim_strsave(name);
else
isn->isn_arg.number = idx;
return OK;
}
/*
* Generate an ISN_LOADV instruction.
*/
static int
generate_LOADV(
cctx_T *cctx,
char_u *name,
int error)
{
// load v:var
int vidx = find_vim_var(name);
RETURN_OK_IF_SKIP(cctx);
if (vidx < 0)
{
if (error)
semsg(_(e_var_notfound), name);
return FAIL;
}
// TODO: get actual type
return generate_LOAD(cctx, ISN_LOADV, vidx, NULL, &t_any);
}
/*
* Generate an ISN_LOADS instruction.
*/
static int
generate_OLDSCRIPT(
cctx_T *cctx,
isntype_T isn_type,
char_u *name,
int sid,
type_T *type)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if (isn_type == ISN_LOADS)
isn = generate_instr_type(cctx, isn_type, type);
else
isn = generate_instr_drop(cctx, isn_type, 1);
if (isn == NULL)
return FAIL;
isn->isn_arg.loadstore.ls_name = vim_strsave(name);
isn->isn_arg.loadstore.ls_sid = sid;
return OK;
}
/*
* Generate an ISN_LOADSCRIPT or ISN_STORESCRIPT instruction.
*/
static int
generate_VIM9SCRIPT(
cctx_T *cctx,
isntype_T isn_type,
int sid,
int idx,
type_T *type)
{
isn_T *isn;
RETURN_OK_IF_SKIP(cctx);
if (isn_type == ISN_LOADSCRIPT)
isn = generate_instr_type(cctx, isn_type, type);
else
isn = generate_instr_drop(cctx, isn_type, 1);
if (isn == NULL)
return FAIL;
isn->isn_arg.script.script_sid = sid;
isn->isn_arg.script.script_idx = idx;
return OK;
}
/*
* Generate an ISN_NEWLIST instruction.
*/
static int
generate_NEWLIST(cctx_T *cctx, int count)
{
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;
garray_T *type_list = cctx->ctx_type_list;
type_T *type;
type_T *member;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr(cctx, ISN_NEWLIST)) == NULL)
return FAIL;
isn->isn_arg.number = count;
// drop the value types
stack->ga_len -= count;
// Use the first value type for the list member type. Use "void" for an
// empty list.
if (count > 0)
member = ((type_T **)stack->ga_data)[stack->ga_len];
else
member = &t_void;
type = get_list_type(member, type_list);
// add the list type to the type stack
if (ga_grow(stack, 1) == FAIL)
return FAIL;
((type_T **)stack->ga_data)[stack->ga_len] = type;
++stack->ga_len;
return OK;
}
/*
* Generate an ISN_NEWDICT instruction.
*/
static int
generate_NEWDICT(cctx_T *cctx, int count)
{
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;
garray_T *type_list = cctx->ctx_type_list;
type_T *type;
type_T *member;
RETURN_OK_IF_SKIP(cctx);
if ((isn = generate_instr(cctx, ISN_NEWDICT)) == NULL)
return FAIL;
isn->isn_arg.number = count;
// drop the key and value types
stack->ga_len -= 2 * count;
// Use the first value type for the list member type. Use "void" for an
// empty dict.
if (count > 0)
member = ((type_T **)stack->ga_data)[stack->ga_len + 1];
else
member = &t_void;
type = get_dict_type(member, type_list);
// add the dict type to the type stack
if (ga_grow(stack, 1) == FAIL)
return FAIL;
((type_T **)stack->ga_data)[stack->ga_len] = type;
++stack->ga_len;
return OK;
}
/*
* Generate an ISN_FUNCREF instruction.
*/
static int
generate_FUNCREF(cctx_T *cctx, int dfunc_idx)
{
isn_T *isn;
garray_T *stack = &cctx->ctx_type_stack;