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1 | #define ST(off) stack_base[ax + (off)] |
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2 | |
3 | #ifdef CAN_PROTOTYPE |
4 | #define XS(name) void name(CV* cv) |
5 | #else |
6 | #define XS(name) void name(cv) CV* cv; |
7 | #endif |
8 | |
9 | #define dXSARGS \ |
10 | dSP; dMARK; \ |
11 | I32 ax = mark - stack_base + 1; \ |
12 | I32 items = sp - mark |
13 | |
14 | #define XSANY CvXSUBANY(cv) |
15 | |
16 | #define dXSI32 I32 ix = XSANY.any_i32 |
17 | |
18 | #define XSRETURN(off) stack_sp = stack_base + ax + ((off) - 1); return |
19 | |
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20 | /* Simple macros to put new mortal values onto the stack. */ |
21 | /* Typically used to return values from XS functions. */ |
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22 | #define XST_mIV(i,v) (ST(i) = sv_2mortal(newSViv(v)) ) |
23 | #define XST_mNV(i,v) (ST(i) = sv_2mortal(newSVnv(v)) ) |
24 | #define XST_mPV(i,v) (ST(i) = sv_2mortal(newSVpv(v,0))) |
25 | #define XST_mNO(i) (ST(i) = &sv_no ) |
26 | #define XST_mYES(i) (ST(i) = &sv_yes ) |
27 | #define XST_mUNDEF(i) (ST(i) = &sv_undef) |
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28 | |
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29 | #define XSRETURN_IV(v) do { XST_mIV(0,v); XSRETURN(1); } while (0) |
30 | #define XSRETURN_NV(v) do { XST_mNV(0,v); XSRETURN(1); } while (0) |
31 | #define XSRETURN_PV(v) do { XST_mPV(0,v); XSRETURN(1); } while (0) |
32 | #define XSRETURN_NO do { XST_mNO(0); XSRETURN(1); } while (0) |
33 | #define XSRETURN_YES do { XST_mYES(0); XSRETURN(1); } while (0) |
34 | #define XSRETURN_UNDEF do { XST_mUNDEF(0); XSRETURN(1); } while (0) |
35 | #define XSRETURN_EMPTY do { XSRETURN(0); } while (0) |
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36 | |
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37 | #define newXSproto(a,b,c,d) sv_setpv((SV*)newXS(a,b,c), d) |