expr: drop ExprResult from ResolveLevel

Signed-off-by: Ran Benita <ran234@gmail.com>

src/xkbcomp/expr.c

@@ -528,11 +528,12 @@ ExprResolveGroup(struct xkb_context *ctx, ExprDef *expr,
     return true;
 }
 
-int
+bool
 ExprResolveLevel(struct xkb_context *ctx, ExprDef *expr,
-                 ExprResult *val_rtrn)
+                 unsigned int *level_rtrn)
 {
-    int ret;
+    bool ok;
+    ExprResult result;
     static const LookupEntry level_names[] = {
         { "level1", 1 },
         { "level2", 2 },
@@ -545,17 +546,18 @@ ExprResolveLevel(struct xkb_context *ctx, ExprDef *expr,
         { NULL, 0 }
     };
 
-    ret = ExprResolveIntegerLookup(ctx, expr, val_rtrn, SimpleLookup,
-                                   level_names);
-    if (ret == false)
-        return ret;
+    ok = ExprResolveIntegerLookup(ctx, expr, &result, SimpleLookup,
+                                  level_names);
+    if (!ok)
+        return false;
 
-    if (val_rtrn->ival < 1 || val_rtrn->ival > XkbMaxShiftLevel) {
+    if (result.uval < 1 || result.uval > XkbMaxShiftLevel) {
         log_err(ctx, "Shift level %d is out of range (1..%d)\n",
-                val_rtrn->ival, XkbMaxShiftLevel);
+                result.uval, XkbMaxShiftLevel);
         return false;
     }
 
+    *level_rtrn = result.uval;
     return true;
 }
 

src/xkbcomp/expr.h

@@ -76,8 +76,9 @@ extern int
 ExprResolveInteger(struct xkb_context *ctx, ExprDef *expr,
                    ExprResult *val_rtrn);
 
-extern int
-ExprResolveLevel(struct xkb_context *ctx, ExprDef *expr, ExprResult *val_rtrn);
+bool
+ExprResolveLevel(struct xkb_context *ctx, ExprDef *expr,
+                 unsigned int *level_rtrn);
 
 bool
 ExprResolveGroup(struct xkb_context *ctx, ExprDef *expr,

src/xkbcomp/keytypes.c

@@ -532,6 +532,7 @@ SetMapEntry(KeyTypesInfo *info, KeyTypeInfo *type, ExprDef *arrayNdx,
             ExprDef *value)
 {
     ExprResult rtrn;
+    unsigned int level;
     struct xkb_kt_map_entry entry;
 
     if (arrayNdx == NULL)
@@ -557,14 +558,15 @@ SetMapEntry(KeyTypesInfo *info, KeyTypeInfo *type, ExprDef *arrayNdx,
         entry.mods.vmods &= type->vmask;
     }
 
-    if (!ExprResolveLevel(info->keymap->ctx, value, &rtrn)) {
+    if (!ExprResolveLevel(info->keymap->ctx, value, &level)) {
         log_err(info->keymap->ctx,
                 "Level specifications in a key type must be integer; "
                 "Ignoring malformed level specification\n");
         return false;
     }
 
-    entry.level = rtrn.ival - 1;
+    /* level is always >= 1 */
+    entry.level = level - 1;
     return AddMapEntry(info, type, &entry, true, true);
 }
 
@@ -667,7 +669,6 @@ static bool
 SetLevelName(KeyTypesInfo *info, KeyTypeInfo *type, ExprDef *arrayNdx,
              ExprDef *value)
 {
-    ExprResult rtrn;
     unsigned level;
     xkb_atom_t level_name;
     struct xkb_context *ctx = info->keymap->ctx;
@@ -676,9 +677,9 @@ SetLevelName(KeyTypesInfo *info, KeyTypeInfo *type, ExprDef *arrayNdx,
     if (arrayNdx == NULL)
         return ReportTypeShouldBeArray(info, type, "level name");
 
-    if (!ExprResolveLevel(ctx, arrayNdx, &rtrn))
+    if (!ExprResolveLevel(ctx, arrayNdx, &level))
         return ReportTypeBadType(info, type, "level name", "integer");
-    level = rtrn.ival - 1;
+    level--;
 
     if (!ExprResolveString(ctx, value, &str)) {
         log_err(info->keymap->ctx,