OOJSEngineDebuggerHelpers.m File Reference

import "OOJavaScriptEngine.h"

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Functions
const char *	JSValueToStrDbg (jsval val)
const char *	JSObjectToStrDbg (JSObject *obj)
const char *	JSStringToStrDbg (JSString *str)
const char *	JSValueTypeDbg (jsval val)
const char *	JSValueToStrSafeDbg (jsval val)
const char *	JSObjectToStrSafeDbg (JSObject *obj)
const char *	JSStringToStrSafeDbg (JSString *str)
const char *	JSIDToStrSafeDbg (jsid anID)

Function Documentation

JSIDToStrSafeDbg()

const char * JSIDToStrSafeDbg

(

jsid

anID

)

Definition at line 188 of file OOJSEngineDebuggerHelpers.m.

{
    NSString *formatted = nil;
    
    if (JSID_IS_INT(anID))          formatted = [NSString stringWithFormat:@"%i", JSID_TO_INT(anID)];
    else if (JSID_IS_VOID(anID))    return "void";
    else if (JSID_IS_EMPTY(anID))   return "empty";
    else if (JSID_IS_ZERO(anID))    return "0";
    else if (JSID_IS_OBJECT(anID))  return OOJSGetClass(NULL, JSID_TO_OBJECT(anID))->name;
    else if (JSID_IS_DEFAULT_XML_NAMESPACE(anID))  return "default XML namespace";
    else if (JSID_IS_STRING(anID))
    {
        JSString        *string = JSID_TO_STRING(anID);
        const jschar    *chars = NULL;
        size_t          length = JS_GetStringLength(string);
        
        if (JS_StringHasBeenInterned(string))
        {
            chars = JS_GetInternedStringChars(string);
        }
        else
        {
            // Bug; jsid strings must be interned.
            return "*** uninterned string in jsid! ***";
        }
        formatted = [NSString stringWithCharacters:chars length:length];
    }
    else
    {
        formatted = [NSString stringWithFormat:@"unknown <0x%llX>", (long long)JSID_BITS(anID)];
    }
    
    return [formatted UTF8String];
}

References nil, and OOJSGetClass().

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JSObjectToStrDbg()

const char * JSObjectToStrDbg

(

JSObject *

obj

)

Definition at line 98 of file OOJSEngineDebuggerHelpers.m.

{
    if (obj == NULL)  return "null";
    return JSValueToStrDbg(OBJECT_TO_JSVAL(obj));
}

References JSValueToStrDbg().

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JSObjectToStrSafeDbg()

const char * JSObjectToStrSafeDbg

(

JSObject *

obj

)

Definition at line 174 of file OOJSEngineDebuggerHelpers.m.

{
    if (obj == NULL)  return "null";
    return JSValueToStrSafeDbg(OBJECT_TO_JSVAL(obj));
}

References JSValueToStrSafeDbg().

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JSStringToStrDbg()

const char * JSStringToStrDbg

(

JSString *

str

)

Definition at line 105 of file OOJSEngineDebuggerHelpers.m.

{
    if (str == NULL)  return "null";
    return JSValueToStrDbg(STRING_TO_JSVAL(str));
}

References JSValueToStrDbg().

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JSStringToStrSafeDbg()

const char * JSStringToStrSafeDbg

(

JSString *

str

)

Definition at line 181 of file OOJSEngineDebuggerHelpers.m.

{
    if (str == NULL)  return "null";
    return JSValueToStrSafeDbg(STRING_TO_JSVAL(str));
}

References JSValueToStrSafeDbg().

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JSValueToStrDbg()

const char * JSValueToStrDbg

(

jsval

val

)

Definition at line 88 of file OOJSEngineDebuggerHelpers.m.

{
    JSContext *context = OOJSAcquireContext();
    const char *result = [OOStringFromJSValueEvenIfNull(context, val) UTF8String];
    OOJSRelinquishContext(context);
    
    return result;
}

References OOJSAcquireContext(), and OOJSRelinquishContext().

Referenced by JSObjectToStrDbg(), and JSStringToStrDbg().

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JSValueToStrSafeDbg()

const char * JSValueToStrSafeDbg

(

jsval

val

)

Definition at line 145 of file OOJSEngineDebuggerHelpers.m.

{
    NSString *formatted = nil;
    
    if (JSVAL_IS_INT(val))          formatted = [NSString stringWithFormat:@"%i", JSVAL_TO_INT(val)];
    else if (JSVAL_IS_DOUBLE(val))  formatted = [NSString stringWithFormat:@"%g", JSVAL_TO_DOUBLE(val)];
    else if (JSVAL_IS_BOOLEAN(val)) formatted = (JSVAL_TO_BOOLEAN(val)) ? @"true" : @"false";
    else if (JSVAL_IS_STRING(val))
    {
        JSString        *string = JSVAL_TO_STRING(val);
        const jschar    *chars = NULL;
        size_t          length = JS_GetStringLength(string);
        
        if (JS_StringHasBeenInterned(string))
        {
            chars = JS_GetInternedStringChars(string);
        }
        // Flat strings can be extracted without a context, but cannot be detected.
        
        if (chars == NULL)  formatted = [NSString stringWithFormat:@"string [%zu chars]", length];
        else  formatted = [NSString stringWithCharacters:chars length:length];
    }
    else if (JSVAL_IS_VOID(val))    return "undefined";
    else                            return JSValueTypeDbg(val);
    
    return [formatted UTF8String];
}

References JSValueTypeDbg(), and nil.

Referenced by JSObjectToStrSafeDbg(), and JSStringToStrSafeDbg().

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JSValueTypeDbg()

const char * JSValueTypeDbg

(

jsval

val

)

Definition at line 112 of file OOJSEngineDebuggerHelpers.m.

{
    if (JSVAL_IS_INT(val))      return "integer";
    if (JSVAL_IS_DOUBLE(val))   return "double";
    if (JSVAL_IS_STRING(val))   return "string";
    if (JSVAL_IS_BOOLEAN(val))  return "boolean";
    if (JSVAL_IS_NULL(val))     return "null";
    if (JSVAL_IS_VOID(val))     return "void";
#ifdef JS_USE_JSVAL_JSID_STRUCT_TYPES
    if (JSVAL_IS_MAGIC_IMPL(val))
    {
        switch(val.s.payload.why)
        {
            case JS_ARRAY_HOLE:         return "magic (array hole)";
            case JS_ARGS_HOLE:          return "magic (args hole)";
            case JS_NATIVE_ENUMERATE:   return "magic (native enumerate)";
            case JS_NO_ITER_VALUE:      return "magic (no iter value)";
            case JS_GENERATOR_CLOSING:  return "magic (generator closing)";
            case JS_NO_CONSTANT:        return "magic (no constant)";
            case JS_THIS_POISON:        return "magic (this poison)";
            case JS_ARG_POISON:         return "magic (arg poison)";
            case JS_SERIALIZE_NO_NODE:  return "magic (serialize no node)";
            case JS_GENERIC_MAGIC:      return "magic (generic)";
        };
        return "magic";
    }
#endif
    if (JSVAL_IS_OBJECT(val))  return OOJSGetClass(NULL, JSVAL_TO_OBJECT(val))->name;   // Fun fact: although a context is required if JS_THREADSAFE is defined, it isn't actually used.
    return "unknown";
}

References OOJSGetClass().

Referenced by JSValueToStrSafeDbg().

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