mirror of
https://github.com/ilyakooo0/urbit.git
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110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* i/n/u.h
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**
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** This file is in the public domain.
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*/
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/** Constants.
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**/
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/* u3_none - u3_noun which is not a noun.
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*/
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# define u3_none (u3_noun)0xffffffff
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/* u3_nul: 0, hoon ~.
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*/
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# define u3_nul 0
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/* u3_blip: 0, hoon %$.
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*/
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# define u3_blip 0
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/** Typedefs.
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**/
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/* u3_post: pointer offset into u3_Loom; _p suffix; declare as u3p().
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*/
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typedef c3_w u3_post;
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# define u3p(type) u3_post
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/* u3_noun: tagged noun pointer.
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**
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** If bit 31 is 0, a u3_noun is a direct 31-bit atom ("cat").
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** If bit 31 is 1 and bit 30 0, an indirect atom ("pug").
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** If bit 31 is 1 and bit 30 1, an indirect cell ("pom").
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**
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** Bits 0-29 are a word offset against u3_Loom (u3_post).
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*/
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typedef c3_w u3_noun;
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/* u3_weak: u3_noun which may be u3_none (not a noun).
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*/
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typedef u3_noun u3_weak;
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/* u3_atom: u3_noun which must be an atom.
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*/
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typedef u3_noun u3_atom;
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/* u3_term: u3_noun which must be a term (@tas).
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*/
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typedef u3_noun u3_term;
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/* u3_cell, u3_trel, u3_qual, u3_quin: cell, triple, quadruple, quintuple.
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*/
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typedef u3_noun u3_cell;
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typedef u3_noun u3_trel;
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typedef u3_noun u3_qual;
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typedef u3_noun u3_quin;
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/* u3_funk, u3_funq: unary and binary noun functions.
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*/
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typedef u3_noun (*u3_funk)(u3_noun);
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typedef u3_noun (*u3_funq)(u3_noun, u3_noun);
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/** Macros.
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**/
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/* u3_assure(): loobean assert, bailing with %fail.
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*/
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# define u3_assure(x) if ( !_(x) ) { u3m_bail(c3__fail); }
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/* u3_assert(): loobean assert, bailing with %exit.
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*/
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# define u3_assent(x) if ( !_(x) ) { u3m_bail(c3__exit); }
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/** Aliases.
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**/
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/* u3h(), u3t(), u3at(): noun fragments.
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*/
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# define u3h(som) u3x_h(som)
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# define u3t(som) u3x_t(som)
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# define u3at(axe, som) u3x_at(axe, som)
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/* u3nc(), u3nt(), u3nq(): tuple composition.
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*/
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# define u3nc(a, b) u3i_cell(a, b)
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# define u3nt(a, b, c) u3i_trel(a, b, c)
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# define u3nq(a, b, c, d) u3i_qual(a, b, c, d)
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/* u3du(), u3ud(): noun/cell test.
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*/
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# define u3du(som) (u3r_du(som))
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# define u3ud(som) (u3r_ud(som))
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/* u3k(), u3z(): reference counts.
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*/
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# define u3k(som) u3a_gain(som)
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# define u3z(som) u3a_lose(som)
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/* u3do(), u3dc(), u3dt(), u3dq(): arvo calls.
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*/
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# define u3do(txt_c, arg) u3v_do(txt_c, arg)
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# define u3dc(txt_c, a, b) u3v_do(txt_c, u3nc(a, b))
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# define u3dt(txt_c, a, b, c) u3v_do(txt_c, u3nt(a, b, c))
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# define u3dq(txt_c, a, b, c, d) u3v_do(txt_c, u3nt(a, b, c, d))
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/* u3to(), u3of(): offset/pointer conversion.
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*/
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# define u3to(type, x) ((type *) u3a_into(x))
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# define u3tn(type, x) (x == 0) ? (void *)0 : ((type *) u3a_into(x))
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# define u3of(type, x) (u3a_outa((type *)x))
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