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patch 8.2.4698: Vim9: script variable has no flag that it was set

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Problem:    Vim9: script variable has no flag that it was set.
Solution:   Add a flag that it was set, to avoid giving it a value when used.
            (closes #10088)
This commit is contained in:
Bram Moolenaar
2022-04-05 21:40:38 +01:00
parent 0d1f55c044
commit aa7d0c2335
7 changed files with 71 additions and 24 deletions
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7
src/structs.h
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@@ -1807,6 +1807,10 @@ struct sallvar_S {
#define HIKEY2SAV(p) ((sallvar_T *)(p - offsetof(sallvar_T, sav_key)))
#define HI2SAV(hi) HIKEY2SAV((hi)->hi_key)
#define SVFLAG_TYPE_ALLOCATED 1 // call free_type() for "sv_type"
#define SVFLAG_EXPORTED 2 // "export let var = val"
#define SVFLAG_ASSIGNED 4 // assigned a value
/*
* Entry for "sn_var_vals". Used for script-local variables.
*/
@@ -1814,9 +1818,8 @@ struct svar_S {
char_u *sv_name; // points into "sn_all_vars" di_key
typval_T *sv_tv; // points into "sn_vars" or "sn_all_vars" di_tv
type_T *sv_type;
int sv_type_allocated; // call free_type() for sv_type
int sv_flags; // SVFLAG_ values above
int sv_const; // 0, ASSIGN_CONST or ASSIGN_FINAL
int sv_export; // "export let var = val"
};
typedef struct {