shithub: libmujs

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

This matches the values used by the 'typeof' operator.

--- a/jsrun.c

+++ b/jsrun.c

@@ -249,6 +249,25 @@

 	}

 }

+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));

--- a/mujs.h

+++ b/mujs.h

@@ -85,6 +85,17 @@

 	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_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);