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Add support for __pairs and __ipairs metamethods (from Lua 5.2).

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This commit is contained in:
Mike Pall
2010-11-18 00:23:24 +01:00
parent 3754a8fe7a
commit ba602c9578
9 changed files with 1748 additions and 1685 deletions
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8
src/buildvm_x86.dasc
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@@ -1509,8 +1509,10 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
| jmp ->fff_res1
|
|.ffunc_1 pairs
| mov CFUNC:RB, [BASE-8]
| mov TAB:RB, [BASE]
| cmp dword [BASE+4], LJ_TTAB; jne ->fff_fallback
| cmp dword TAB:RB->metatable, 0; jne ->fff_fallback
| mov CFUNC:RB, [BASE-8]
| mov CFUNC:RD, CFUNC:RB->upvalue[0]
| mov PC, [BASE-4]
| mov dword [BASE-4], LJ_TFUNC
@@ -1571,8 +1573,10 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
| jmp ->fff_res
|
|.ffunc_1 ipairs
| mov CFUNC:RB, [BASE-8]
| mov TAB:RB, [BASE]
| cmp dword [BASE+4], LJ_TTAB; jne ->fff_fallback
| cmp dword TAB:RB->metatable, 0; jne ->fff_fallback
| mov CFUNC:RB, [BASE-8]
| mov CFUNC:RD, CFUNC:RB->upvalue[0]
| mov PC, [BASE-4]
| mov dword [BASE-4], LJ_TFUNC