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Issue #135: Expose type of value as an enum with js_type().

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This matches the values used by the 'typeof' operator.
This commit is contained in:
Tor Andersson
2021-03-26 15:47:23 +01:00
parent 33ffe6efeb
commit 3d29cd2f2f
2 changed files with 31 additions and 0 deletions
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19
jsrun.c
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@@ -249,6 +249,25 @@ const char *js_typeof(js_State *J, int idx)
}
}
int js_type(js_State *J, int idx)
{
js_Value *v = stackidx(J, idx);
switch (v->type) {
default:
case JS_TSHRSTR: return JS_ISSTRING;
case JS_TUNDEFINED: return JS_ISUNDEFINED;
case JS_TNULL: return JS_ISNULL;
case JS_TBOOLEAN: return JS_ISBOOLEAN;
case JS_TNUMBER: return JS_ISNUMBER;
case JS_TLITSTR: return JS_ISSTRING;
case JS_TMEMSTR: return JS_ISSTRING;
case JS_TOBJECT:
if (v->u.object->type == JS_CFUNCTION || v->u.object->type == JS_CCFUNCTION)
return JS_ISFUNCTION;
return JS_ISOBJECT;
}
}
int js_toboolean(js_State *J, int idx)
{
return jsV_toboolean(J, stackidx(J, idx));

12
mujs.h
View File

@@ -85,6 +85,17 @@ enum {
JS_DONTCONF = 4,
};
/* enum for js_type() */
enum {
JS_ISUNDEFINED,
JS_ISNULL,
JS_ISBOOLEAN,
JS_ISNUMBER,
JS_ISSTRING,
JS_ISFUNCTION,
JS_ISOBJECT
};
void js_report(js_State *J, const char *message);
void js_newerror(js_State *J, const char *message);
@@ -217,6 +228,7 @@ int js_equal(js_State *J);
int js_strictequal(js_State *J);
int js_instanceof(js_State *J);
const char *js_typeof(js_State *J, int idx);
int js_type(js_State *J, int idx);
void js_repr(js_State *J, int idx);
const char *js_torepr(js_State *J, int idx);