273 lines
3.0 KiB
C
273 lines
3.0 KiB
C
enum TypeKind
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{
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Tnone,
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Tint,
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Tbool,
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Tstring,
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Tany,
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Ttup,
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Tid,
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Tfn,
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Tstruct,
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Tarray,
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Tslice,
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Tptr,
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Tref,
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Tpfn,
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Tpkg,
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Tend,
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};
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enum NodeOp
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{
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Onone,
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Oadd,
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Osub,
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Olt,
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Ogt,
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Oneq,
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Oeq,
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Oleq,
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Ogeq,
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Omul,
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Oconst,
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Oindex,
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Oadr,
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Otup,
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Ofn,
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Opkg,
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Orange,
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Otypedecl,
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Ostrdecl,
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Oname,
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Ofor,
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Oif,
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Oret,
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Oref,
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Oxref,
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Oseq,
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Oscope,
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Ocall,
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Odas,
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Oas,
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Odot,
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Olen,
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Oslice,
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Ofielddecl,
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Ovardecl,
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Ovardecli,
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Oimport,
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Oexport,
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Opkgdecl,
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Oarray,
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Ostruct,
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Oend,
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};
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enum
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{
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Aimm, /* immediate */
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Amp, /* global */
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Ampind, /* global indirect */
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Afp, /* activation frame */
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Afpind, /* frame indirect */
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Apc, /* branch */
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Adesc, /* type descriptor immediate */
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Aoff, /* offset in module description table */
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Anoff, /* above encoded as -ve */
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Aerr, /* error */
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Anone, /* no operand */
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Aldt, /* linkage descriptor table immediate */
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Aend
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};
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enum
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{
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Rreg, /* v(fp) */
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Rmreg, /* v(mp) */
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Roff, /* $v */
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Rnoff, /* $v encoded as -ve */
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Rdesc, /* $v */
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Rdescp, /* $v */
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Rconst, /* $v */
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Ralways, /* preceeding are always addressable */
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Radr, /* v(v(fp)) */
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Rmadr, /* v(v(mp)) */
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Rcant, /* following are not quite addressable */
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Rpc, /* branch address */
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Rmpc, /* cross module branch address */
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Rareg, /* $v(fp) */
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Ramreg, /* $v(mp) */
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Raadr, /* $v(v(fp)) */
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Ramadr, /* $v(v(mp)) */
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Rldt, /* $v */
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Rend
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};
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enum
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{
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Dtype,
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Dlocal,
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Dglobal,
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Dconst,
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Darg,
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Dfield,
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Dfn,
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Dpkg,
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Dundef,
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Dunbound,
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Dwundef,
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};
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enum
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{
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TopScope = 0,
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MaxScope = 128,
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ScopeNil = 1,
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ScopeGlobal = 2,
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Sother = 0,
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Sloop,
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Sscope,
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};
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enum LexToken
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{
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Leof = -1,
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Lnone = 0,
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Lfn = sizeof(char)+1,
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Llen,
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Ltid,
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Lid,
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Lconst,
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Lsconst,
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Lret,
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Ldas,
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Ltype,
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Lvar,
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Lstruct,
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Lstring,
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Lfor,
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Lif,
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Lelse,
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Lexport,
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Limport,
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Lpackage,
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Leq,
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Lneq,
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Lleq,
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Lgeq,
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};
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typedef struct Lexer Lexer;
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typedef struct Node Node;
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typedef struct Type Type;
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typedef struct Decl Decl;
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typedef struct Inst Inst;
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typedef struct Addr Addr;
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typedef struct Sym Sym;
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typedef struct Token Token;
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typedef struct Import Import;
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struct Sym
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{
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int tok;
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char *name;
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int len;
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Decl *decl;
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Decl *unbound;
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};
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struct Decl
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{
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Sym *sym;
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int nid;
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int scope;
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int das;
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Type *ty;
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Decl *next;
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Decl *old;
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Decl *dot;
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Node *init;
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int store;
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int offset;
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int tref;
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Inst *pc;
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Decl *locals;
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Decl *link;
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int flag;
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};
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struct Lexer
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{
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int tok;
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int next;
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int cur;
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int eof;
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Sym *sym;
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FILE *f;
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WORD val;
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};
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struct Type
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{
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int kind;
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int size;
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int len;
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int offset;
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Decl *decl;
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Type *tof;
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Decl *ids;
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};
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struct Node
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{
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u8 op;
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u8 addable;
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u8 temps;
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Node *l, *r;
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Type *ty;
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int val;
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Decl *decl;
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};
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struct Addr
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{
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i32 reg;
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i32 offset;
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Decl *decl;
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};
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struct Inst
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{
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u8 op;
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u8 sm; /* operand addressing modes */
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u8 mm;
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u8 dm;
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Addr s; /* operands */
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Addr m;
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Addr d;
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Inst *next;
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Inst *branch;
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int block;
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u32 pc;
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};
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struct Token
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{
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int kind;
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union{
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Sym *sym;
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int num;
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Decl *ids;
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Node *node;
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Type *type;
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};
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};
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struct Import
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{
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Sym *sym;
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Sym *path;
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Decl *decls;
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}; |