Mercurial > projects > ddmd
annotate dmd/backend/Symbol.d @ 69:c876339731a4
dead code removed
| author | korDen |
|---|---|
| date | Tue, 24 Aug 2010 16:59:45 +0400 |
| parents | fd4acc376c45 |
| children | e28b18c23469 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.backend.Symbol; |
| 2 | |
| 3 import dmd.backend.dt_t; | |
| 4 import dmd.backend.TYPE; | |
| 5 import dmd.backend.LIST; | |
| 6 import dmd.backend.block; | |
| 7 import dmd.backend.func_t; | |
| 8 import dmd.backend.enum_t; | |
| 9 import dmd.backend.elem; | |
| 10 import dmd.backend.struct_t; | |
| 11 import dmd.backend.template_t; | |
| 12 import dmd.backend.targ_types; | |
| 13 import dmd.backend.vec_t; | |
| 14 import dmd.backend.SYMIDX; | |
| 15 import dmd.backend.regm_t; | |
| 16 import dmd.backend.Util; | |
| 17 | |
| 18 struct Symbol | |
| 19 { | |
| 20 ushort id; | |
| 21 | |
| 22 Symbol* Sl; | |
| 23 Symbol* Sr; // left, right child | |
| 24 | |
| 25 Symbol *Snext; // next in threaded list | |
| 26 | |
| 27 dt_t* Sdt; // variables: initializer | |
| 28 type* Stype; // type of Symbol | |
| 29 | |
| 30 tym_t ty() | |
| 31 { | |
| 32 return Stype.Tty; | |
| 33 } | |
| 34 | |
| 35 union // variants for different Symbol types | |
| 36 { | |
| 37 enum_t* Senum; // SCenum | |
| 38 struct | |
| 39 { | |
| 40 func_t* Sfunc; // tyfunc | |
| 41 list_t Spath1; // SCfuncalias member functions: same as Spath | |
| 42 // and in same position | |
| 43 // SCadl: list of associated functions for ADL lookup | |
| 44 } | |
| 45 struct // SClabel | |
| 46 { | |
| 47 int Slabel; // TRUE if label was defined | |
| 48 block* Slabelblk; // label block | |
| 49 } | |
| 50 /// #define Senumlist Senum->SEenumlist | |
| 51 | |
| 52 struct // SClinkage | |
| 53 { | |
| 54 int Slinkage; // tym linkage bits | |
| 55 uint Smangle; | |
| 56 } | |
| 57 | |
| 58 struct | |
| 59 { | |
| 60 char Sbit; // SCfield: bit position of start of bit field | |
| 61 char Swidth; // SCfield: width in bits of bit field | |
| 62 targ_size_t Smemoff; // SCmember,SCfield: offset from start of struct | |
| 63 } | |
| 64 | |
| 65 elem* Svalue; /* SFLvalue: value of const | |
| 66 SFLdtorexp: for objects with destructor, | |
| 67 conditional expression to precede dtor call | |
| 68 */ | |
| 69 | |
| 70 struct_t* Sstruct; // SCstruct | |
| 71 template_t* Stemplate; // SCtemplate | |
| 72 Symbol* Simport; // SCextern: if dllimport Symbol, this is the | |
| 73 // Symbol it was imported from | |
| 74 | |
| 75 ubyte Spreg; // SCfastpar: register parameter is passed in | |
| 76 } | |
| 77 | |
| 78 Symbol* Sscope; // enclosing scope (could be struct tag, | |
| 79 // enclosing inline function for statics, | |
| 80 // or namespace) | |
| 81 ///#define isclassmember(s) ((s)->Sscope && (s)->Sscope->Sclass == SCstruct) | |
| 82 | |
| 83 const(char)* prettyIdent; // the symbol identifer as the user sees it | |
| 84 | |
|
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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85 version (ELFOBJ_OR_MACHOBJ) |
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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86 { |
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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87 ptrdiff_t obj_si; // Symbol index of coff or elf symbol |
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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88 size_t dwarf_off; // offset into .debug section |
|
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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89 targ_size_t code_off; // rel. offset from start of block where var is initialized |
|
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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90 targ_size_t last_off; // last offset using var |
|
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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91 } |
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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92 version (TARGET_OSX) |
|
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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93 { |
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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94 targ_size_t Slocalgotoffset; |
|
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
95 } |
|
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
96 |
| 0 | 97 enum_SC Sclass; // storage class (SCxxxx) |
| 98 char Sfl; // flavor (FLxxxx) | |
| 99 SYMFLGS Sflags; // flag bits (SFLxxxx) | |
| 100 | |
| 101 vec_t Srange; // live range, if any | |
| 102 vec_t Slvreg; // when symbol is in register | |
| 103 targ_size_t Ssize; // tyfunc: size of function | |
| 104 targ_size_t Soffset; // variables: offset of Symbol in its storage class | |
| 105 | |
| 106 SYMIDX Ssymnum; // Symbol number (index into globsym.tab[]) | |
| 107 // SCauto,SCparameter,SCtmp,SCregpar,SCregister | |
| 108 | |
| 109 short Sseg; // segment index | |
| 110 | |
| 111 int Sweight; // usage count, the higher the number, | |
| 112 // the more worthwhile it is to put in | |
| 113 // a register | |
| 114 union | |
| 115 { | |
| 116 uint Sxtrnnum; // SCcomdef,SCextern,SCcomdat: external symbol # (starting from 1) | |
| 117 uint Stypidx; // SCstruct,SCunion,SCclass,SCenum,SCtypedef: debug info type index | |
| 118 | |
| 119 struct | |
| 120 { | |
| 121 ubyte Sreglsw; | |
| 122 ubyte Sregmsw; | |
| 123 regm_t Sregm; // mask of registers | |
| 124 } | |
| 125 } | |
| 126 | |
| 127 regm_t Sregsaved; // mask of registers not affected by this func | |
| 128 | |
| 129 char Sident[35]; // identifier string (dynamic array) | |
| 130 // (the size is for static Symbols) | |
| 131 | |
| 132 bool needThis() // true if symbol needs a 'this' pointer | |
| 133 { | |
| 134 assert(false); | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 void dumpSymbol(Symbol* foo) | |
| 139 { | |
| 140 foreach (a, b; foo.tupleof) | |
| 141 { | |
| 142 static if (typeof(foo.tupleof[a]).stringof != "char[35u]") { | |
| 143 std.stdio.writeln(foo.tupleof[a].stringof, " ", cast(char*)&foo.tupleof[a] - cast(char*)foo, " = ", cast(int)foo.tupleof[a]); | |
| 144 //std.stdio.writeln("printf(\"", foo.tupleof[a].stringof, " %d = %d\\n\",(char*)(&", foo.tupleof[a].stringof, ")-(char*)foo, ", foo.tupleof[a].stringof, ");"); | |
| 145 } | |
| 146 } | |
| 147 | |
| 148 std.stdio.writefln("(*foo).Sclass %d = %d", (cast(char*)&foo.Sclass - cast(char*)foo), cast(int)foo.Sclass); | |
| 149 //std.stdio.writeln("printf(\"(*foo).Sclass %d %d\\n\", ((char*)&foo->Sclass - (char*)foo), (int)foo->Sclass);"); | |
| 69 | 150 } |