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<h1>NSXReturnThrowError.m</h1><a href="NSXReturnThrowError_8m.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*******************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> NSXReturnThrowError.m</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (c) 2007 Jonathan 'Wolf' Rentzsch: <http://rentzsch.com></span>
<a name="l00004"></a>00004 <span class="comment"> Some rights reserved: <http://opensource.org/licenses/mit-license.php></span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> ***************************************************************************/</span>
<a name="l00007"></a>00007
<a name="l00008"></a>00008 <span class="preprocessor">#import "<a class="code" href="NSXReturnThrowError_8h.html">NSXReturnThrowError.h</a>"</span>
<a name="l00009"></a>00009
<a name="l00010"></a><a class="code" href="NSXReturnThrowError_8m.html#9e9779d61963c1ddf17923946c25936c">00010</a> NSString *<a class="code" href="NSXReturnThrowError_8m.html#9e9779d61963c1ddf17923946c25936c">NSXErrorExceptionName</a> = <span class="stringliteral">@"NSXError"</span>;
<a name="l00011"></a><a class="code" href="NSXReturnThrowError_8m.html#e2e9e8f4a16e7f284b2e054d800f9256">00011</a> NSString *<a class="code" href="NSXReturnThrowError_8m.html#e2e9e8f4a16e7f284b2e054d800f9256">NULLPointerErrorDomain</a> = <span class="stringliteral">@"NULLPointerErrorDomain"</span>;
<a name="l00012"></a><a class="code" href="NSXReturnThrowError_8m.html#782b9dbb4165cc9dccc7672ab9bafc40">00012</a> NSString *<a class="code" href="NSXReturnThrowError_8m.html#782b9dbb4165cc9dccc7672ab9bafc40">BOOLErrorDomain</a> = <span class="stringliteral">@"BOOLErrorDomain"</span>;
<a name="l00013"></a>00013
<a name="l00014"></a><a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6">00014</a> <span class="keyword">typedef</span> <span class="keyword">enum</span> {
<a name="l00015"></a>00015 <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f60e3a33f9289180dbc7b9114d45433020">NSXErrorCodeType_Unknown</a>,
<a name="l00016"></a>00016 <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f669e7b0deded4a739548c58ffffb6b446">NSXErrorCodeType_Cocoa</a>, <span class="comment">// "@"</span>
<a name="l00017"></a>00017 <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6428789a29504dae91116ffabf7d60e3b">NSXErrorCodeType_PosixOrMach</a>, <span class="comment">// "i" (-1 == posix+errno, otherwise mach)</span>
<a name="l00018"></a>00018 <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6fa62b8314b673e300e556f62a5197232">NSXErrorCodeType_Carbon</a>, <span class="comment">// "s" || "l"</span>
<a name="l00019"></a>00019 <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6ccb8c9b5fb5e6719048972afe689f7ae">NSXErrorCodeType_ptr</a>, <span class="comment">// "r*" || "*" || "^"</span>
<a name="l00020"></a>00020 <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f617f6da935d397bb45f2805a0c8290e36">NSXErrorCodeType_BOOL</a> <span class="comment">// "c"</span>
<a name="l00021"></a>00021 } <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6">NSXErrorCodeType</a>;
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="keyword">static</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6">NSXErrorCodeType</a> NSXErrorCodeTypeFromObjCType(<span class="keyword">const</span> <span class="keywordtype">char</span> *objCType) {
<a name="l00024"></a>00024 <span class="keywordflow">switch</span> (objCType[0]) {
<a name="l00025"></a>00025 <span class="keywordflow">case</span> <span class="charliteral">'s'</span>:
<a name="l00026"></a>00026 <span class="keywordflow">case</span> <span class="charliteral">'l'</span>:
<a name="l00027"></a>00027 <span class="keywordflow">return</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6fa62b8314b673e300e556f62a5197232">NSXErrorCodeType_Carbon</a>;
<a name="l00028"></a>00028 <span class="keywordflow">case</span> <span class="charliteral">'i'</span>:
<a name="l00029"></a>00029 <span class="keywordflow">return</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6428789a29504dae91116ffabf7d60e3b">NSXErrorCodeType_PosixOrMach</a>;
<a name="l00030"></a>00030 <span class="keywordflow">case</span> <span class="charliteral">'@'</span>:
<a name="l00031"></a>00031 <span class="keywordflow">return</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f669e7b0deded4a739548c58ffffb6b446">NSXErrorCodeType_Cocoa</a>;
<a name="l00032"></a>00032 <span class="keywordflow">case</span> <span class="charliteral">'^'</span>:
<a name="l00033"></a>00033 <span class="keywordflow">case</span> <span class="charliteral">'*'</span>:
<a name="l00034"></a>00034 <span class="keywordflow">return</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6ccb8c9b5fb5e6719048972afe689f7ae">NSXErrorCodeType_ptr</a>;
<a name="l00035"></a>00035 <span class="keywordflow">case</span> <span class="charliteral">'r'</span>:
<a name="l00036"></a>00036 <span class="keywordflow">return</span> <span class="charliteral">'*'</span> == objCType ? <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6ccb8c9b5fb5e6719048972afe689f7ae">NSXErrorCodeType_ptr</a> : <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f60e3a33f9289180dbc7b9114d45433020">NSXErrorCodeType_Unknown</a>;
<a name="l00037"></a>00037 <span class="keywordflow">case</span> <span class="charliteral">'c'</span>:
<a name="l00038"></a>00038 <span class="keywordflow">return</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f617f6da935d397bb45f2805a0c8290e36">NSXErrorCodeType_BOOL</a>;
<a name="l00039"></a>00039 <span class="keywordflow">default</span>:
<a name="l00040"></a>00040 <span class="keywordflow">return</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f60e3a33f9289180dbc7b9114d45433020">NSXErrorCodeType_Unknown</a>;
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043
<a name="l00044"></a><a class="code" href="NSXReturnThrowError_8m.html#d2a6689be51f9b529617e1ab7d66073d">00044</a> <span class="keywordtype">void</span> <a class="code" href="NSXReturnThrowError_8m.html#d2a6689be51f9b529617e1ab7d66073d">NSXMakeErrorImp</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *objCType_, intptr_t result_, <span class="keyword">const</span> <span class="keywordtype">char</span> *file_, <span class="keywordtype">unsigned</span> line_, <span class="keyword">const</span> <span class="keywordtype">char</span> *function_, <span class="keyword">const</span> <span class="keywordtype">char</span> *code_, NSError **error_) {
<a name="l00045"></a>00045 NSString *errorDomain = nil;
<a name="l00046"></a>00046 <span class="keywordtype">int</span> errorCode = (int)result_;
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keywordflow">switch</span> (NSXErrorCodeTypeFromObjCType(objCType_)) {
<a name="l00049"></a>00049 <span class="keywordflow">case</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f669e7b0deded4a739548c58ffffb6b446">NSXErrorCodeType_Cocoa</a>:
<a name="l00050"></a>00050 <span class="comment">// codeResult's type is an id/NSObject* pointer. 0 == nil == failure.</span>
<a name="l00051"></a>00051 <span class="keywordflow">if</span> (0 == result_) {
<a name="l00052"></a>00052 errorDomain = <span class="stringliteral">@"NSCocoaErrorDomain"</span>; <span class="comment">// Could use NSCocoaErrorDomain symbol, but that would force us to 10.4.</span>
<a name="l00053"></a>00053 errorCode = -1;
<a name="l00054"></a>00054 }
<a name="l00055"></a>00055 <span class="keywordflow">break</span>;
<a name="l00056"></a>00056 <span class="keywordflow">case</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6fa62b8314b673e300e556f62a5197232">NSXErrorCodeType_Carbon</a>:
<a name="l00057"></a>00057 <span class="comment">// codeResult's type is OSErr (short) or OSStatus (long). 0 == noErr == success.</span>
<a name="l00058"></a>00058 <span class="keywordflow">if</span> (0 != result_) {
<a name="l00059"></a>00059 errorDomain = NSOSStatusErrorDomain;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061 <span class="keywordflow">break</span>;
<a name="l00062"></a>00062 <span class="keywordflow">case</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6428789a29504dae91116ffabf7d60e3b">NSXErrorCodeType_PosixOrMach</a>:
<a name="l00063"></a>00063 <span class="comment">// codeResult's type is int, which is used for both posix error codes and mach_error_t/kern_return_t.</span>
<a name="l00064"></a>00064 <span class="comment">// 0 means success for both, and we can differentiate posix error codes since they're always -1 (the</span>
<a name="l00065"></a>00065 <span class="comment">// actual posix code stored in errno).</span>
<a name="l00066"></a>00066 <span class="keywordflow">if</span> (0 != result_) {
<a name="l00067"></a>00067 <span class="keywordflow">if</span> (-1 == result_) {
<a name="l00068"></a>00068 <span class="comment">// Posix error code.</span>
<a name="l00069"></a>00069 errorDomain = NSPOSIXErrorDomain;
<a name="l00070"></a>00070 errorCode = errno;
<a name="l00071"></a>00071 } <span class="keywordflow">else</span> {
<a name="l00072"></a>00072 <span class="comment">// Mach error code.</span>
<a name="l00073"></a>00073 errorDomain = NSMachErrorDomain;
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076 <span class="keywordflow">break</span>;
<a name="l00077"></a>00077 <span class="keywordflow">case</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f6ccb8c9b5fb5e6719048972afe689f7ae">NSXErrorCodeType_ptr</a>:
<a name="l00078"></a>00078 <span class="comment">// codeResult's type is some sort of non-id/non-NSObject* pointer. 0 == NULL == failure.</span>
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (0 == result_) {
<a name="l00080"></a>00080 errorDomain = <a class="code" href="NSXReturnThrowError_8m.html#e2e9e8f4a16e7f284b2e054d800f9256">NULLPointerErrorDomain</a>;
<a name="l00081"></a>00081 errorCode = -1;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083 <span class="keywordflow">break</span>;
<a name="l00084"></a>00084 <span class="keywordflow">case</span> <a class="code" href="NSXReturnThrowError_8m.html#f4ffa913939db3dc83e10ffc7f07b8f617f6da935d397bb45f2805a0c8290e36">NSXErrorCodeType_BOOL</a>:
<a name="l00085"></a>00085 <span class="comment">// codeResult's type is a BOOL. 0 == NO == failure.</span>
<a name="l00086"></a>00086 <span class="keywordflow">if</span> (0 == result_) {
<a name="l00087"></a>00087 errorDomain = <a class="code" href="NSXReturnThrowError_8m.html#782b9dbb4165cc9dccc7672ab9bafc40">BOOLErrorDomain</a>;
<a name="l00088"></a>00088 errorCode = -1;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090 <span class="keywordflow">break</span>;
<a name="l00091"></a>00091 <span class="keywordflow">default</span>:
<a name="l00092"></a>00092 NSCAssert1(NO, <span class="stringliteral">@"NSXErrorCodeType_Unknown: \"</span>%s\<span class="stringliteral">""</span>, objCType_);
<a name="l00093"></a>00093 <span class="keywordflow">break</span>;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordflow">if</span> (errorDomain) {
<a name="l00097"></a>00097 *error_ = [NSError errorWithDomain:errorDomain
<a name="l00098"></a>00098 code:errorCode
<a name="l00099"></a>00099 userInfo:[NSDictionary dictionaryWithObjectsAndKeys:
<a name="l00100"></a>00100 [NSString stringWithUTF8String:file_], @"reportingFile",
<a name="l00101"></a>00101 [NSNumber numberWithInt:line_], @"reportingLine",
<a name="l00102"></a>00102 [NSString stringWithUTF8String:function_], @"reportingMethod",
<a name="l00103"></a>00103 [NSString stringWithUTF8String:code_], @"origin",
<a name="l00104"></a>00104 nil]];
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 }
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Feb 11 23:15:00 2007 for NSXReturnThrowError by
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