Mercurial > projects > ldc
view lphobos/std/moduleinit.d @ 117:56a21f3e5d3e trunk
[svn r121] Finished ModuleInfo implementation.
Static ctors/dtors now work according to spec.
Changed class vtable types slightly in some cases. Overridden functions now always take the the type of the first class declaring the method as this parameter. This helps when using headers (w. implementation somewhere else)
author | lindquist |
---|---|
date | Mon, 26 Nov 2007 04:49:23 +0100 |
parents | fd7ad91fd713 |
children | 373489eeaf90 |
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// Modified for LLVMDC module std.moduleinit; //debug = 1; private { import object; import std.c.stdio; import std.c.stdlib; } enum { MIctorstart = 1, // we've started constructing it MIctordone = 2, // finished construction MIstandalone = 4, // module ctor does not depend on other module // ctors being done first } // had to move the class to object.d, as its declaration is needed in the compiler code, // otherwise the DMDFE Module::moduleinfo member is NULL class ModuleCtorError : Exception { this(ModuleInfo m) { super("circular initialization dependency with module " ~ m.name); } } // this gets initialized in _moduleCtor() extern (C) ModuleInfo[] _moduleinfo_array; // this method returns the linker constructed, null terminated, array of moduleinfos extern (C) void** _d_get_moduleinfo_array(); ModuleInfo[] _moduleinfo_dtors; uint _moduleinfo_dtors_i; // Register termination function pointers extern (C) int _fatexit(void *); /************************************* * Initialize the modules. */ extern (C) void _moduleCtor() { debug printf("_moduleCtor()\n"); int len = 0; ModuleInfo* mrbegin = cast(ModuleInfo*)_d_get_moduleinfo_array(); assert(mrbegin !is null); ModuleInfo* mr; for (mr = mrbegin; *mr !is null; ++mr) len++; _moduleinfo_array = new ModuleInfo[len]; len = 0; for (mr = mrbegin; *mr !is null; ++mr) { _moduleinfo_array[len] = *mr; len++; } version (Win32) { // Ensure module destructors also get called on program termination //_fatexit(&_STD_moduleDtor); } _moduleinfo_dtors = new ModuleInfo[len]; debug printf("_moduleinfo_dtors = x%x\n", cast(void *)_moduleinfo_dtors); _moduleCtor2(_moduleinfo_array, 0); version (none) { foreach (m; _moduleinfo_array) { writefln("module %s, %d", m.name, m.localClasses.length); foreach (c; m.localClasses) { writefln("\tclass %s", c.name); } } } } void _moduleCtor2(ModuleInfo[] mi, int skip) { debug printf("_moduleCtor2(): %d modules\n", mi.length); for (uint i = 0; i < mi.length; i++) { ModuleInfo m = mi[i]; debug printf("\tmodule[%d] = '%p'\n", i, m); if (!m) continue; debug printf("\tmodule[%d] = '%.*s'\n", i, m.name); if (m.flags & MIctordone) continue; debug printf("\tmodule[%d] = '%.*s', m = x%x\n", i, m.name, m); if (m.ctor || m.dtor) { if (m.flags & MIctorstart) { if (skip || m.flags & MIstandalone) continue; throw new ModuleCtorError(m); } m.flags |= MIctorstart; _moduleCtor2(m.importedModules, 0); if (m.ctor) (*m.ctor)(); m.flags &= ~MIctorstart; m.flags |= MIctordone; // Now that construction is done, register the destructor //printf("\tadding module dtor x%x\n", m); assert(_moduleinfo_dtors_i < _moduleinfo_dtors.length); _moduleinfo_dtors[_moduleinfo_dtors_i++] = m; } else { m.flags |= MIctordone; _moduleCtor2(m.importedModules, 1); } } } /********************************** * Destruct the modules. */ // Starting the name with "_STD" means under linux a pointer to the // function gets put in the .dtors segment. extern (C) void _moduleDtor() { debug printf("_moduleDtor(): %d modules\n", _moduleinfo_dtors_i); for (uint i = _moduleinfo_dtors_i; i-- != 0;) { ModuleInfo m = _moduleinfo_dtors[i]; debug printf("\tmodule[%d] = '%.*s', x%x\n", i, m.name, m); if (m.dtor) { (*m.dtor)(); } } debug printf("_moduleDtor() done\n"); } /********************************** * Run unit tests. */ extern (C) void _moduleUnitTests() { debug printf("_moduleUnitTests()\n"); for (uint i = 0; i < _moduleinfo_array.length; i++) { ModuleInfo m = _moduleinfo_array[i]; if (!m) continue; debug printf("\tmodule[%d] = '%.*s'\n", i, m.name); if (m.unitTest) { (*m.unitTest)(); } } }