mirror of
https://github.com/ccxvii/mujs.git
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109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
#include "jsi.h"
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#include "jsvalue.h"
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#include "jsbuiltin.h"
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#define QQ(X) #X
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#define Q(X) QQ(X)
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static void Ep_toString(js_State *J, unsigned int argc)
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{
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const char *name = "Error";
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const char *message = "";
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if (!js_isobject(J, -1))
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js_typeerror(J, "not an object");
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js_getproperty(J, 0, "name");
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if (js_isdefined(J, -1))
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name = js_tostring(J, -1);
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js_pop(J, 1);
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js_getproperty(J, 0, "message");
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if (js_isdefined(J, -1))
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message = js_tostring(J, -1);
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js_pop(J, 1);
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if (!strcmp(name, ""))
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js_pushliteral(J, message);
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else if (!strcmp(message, ""))
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js_pushliteral(J, name);
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else {
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js_pushliteral(J, name);
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js_pushliteral(J, ": ");
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js_concat(J);
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js_pushliteral(J, message);
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js_concat(J);
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}
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}
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static int jsB_ErrorX(js_State *J, unsigned int argc, js_Object *prototype)
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{
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js_pushobject(J, jsV_newobject(J, JS_CERROR, prototype));
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if (js_isdefined(J, 1)) {
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js_pushstring(J, js_tostring(J, 1));
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js_setproperty(J, -2, "message");
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}
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return 1;
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}
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static void js_newerrorx(js_State *J, const char *message, js_Object *prototype)
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{
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js_pushobject(J, jsV_newobject(J, JS_CERROR, prototype));
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js_pushstring(J, message);
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js_setproperty(J, -2, "message");
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}
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#define DERROR(name, Name) \
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static void jsB_##Name(js_State *J, unsigned int argc) { \
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jsB_ErrorX(J, argc, J->Name##_prototype); \
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} \
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void js_new##name(js_State *J, const char *s) { \
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js_newerrorx(J, s, J->Name##_prototype); \
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} \
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void js_##name(js_State *J, const char *fmt, ...) { \
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va_list ap; \
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char buf[256]; \
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va_start(ap, fmt); \
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vsnprintf(buf, sizeof buf, fmt, ap); \
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va_end(ap); \
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js_newerrorx(J, buf, J->Name##_prototype); \
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js_throw(J); \
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}
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DERROR(error, Error)
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DERROR(evalerror, EvalError)
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DERROR(rangeerror, RangeError)
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DERROR(referenceerror, ReferenceError)
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DERROR(syntaxerror, SyntaxError)
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DERROR(typeerror, TypeError)
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DERROR(urierror, URIError)
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#undef DERROR
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void jsB_initerror(js_State *J)
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{
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js_pushobject(J, J->Error_prototype);
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{
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jsB_props(J, "name", "Error");
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jsB_props(J, "message", "an error has occurred");
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jsB_propf(J, "toString", Ep_toString, 0);
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}
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js_newcconstructor(J, jsB_Error, jsB_Error, 1);
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js_defglobal(J, "Error", JS_DONTENUM);
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#define IERROR(NAME) \
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js_pushobject(J, J->NAME##_prototype); \
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jsB_props(J, "name", Q(NAME)); \
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js_newcconstructor(J, jsB_##NAME, jsB_##NAME, 1); \
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js_defglobal(J, Q(NAME), JS_DONTENUM);
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IERROR(EvalError);
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IERROR(RangeError);
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IERROR(ReferenceError);
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IERROR(SyntaxError);
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IERROR(TypeError);
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IERROR(URIError);
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#undef IERROR
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}
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