95 lines
1.3 KiB
C
95 lines
1.3 KiB
C
#ifndef __IR_H__
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#define __IR_H__
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#include "tok.h"
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typedef struct BuiltinFunc {
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char *name;
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bool side_effects : 1;
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size_t n_args;
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Value (*func)(Value *args);
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size_t fid; /* function ID, assigned automatically */
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} BuiltinFunc;
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enum IRInstr {
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IRSet,
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IRNeg,
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IRAdd,
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IRSub,
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IRMul,
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IRDiv,
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IRJmp,
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IRJnz,
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IRCallInternal,
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IRInstrEnumSize,
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};
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typedef enum IRInstr IRInstr;
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extern const char *irinstr_str[IRInstrEnumSize];
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typedef struct IRParam {
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enum {
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IRParamNull = 0,
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IRParamLiteral,
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IRParamAddr,
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} kind;
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union {
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Value Literal;
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size_t Addr;
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};
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} IRParam;
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typedef struct IRArgs {
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struct IRArgs *next;
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IRParam param;
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} IRArgs;
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typedef struct IRTok {
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size_t ln, col;
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IRInstr instr;
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union {
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struct {
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size_t addr;
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IRParam val;
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} Unary;
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struct {
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size_t addr;
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IRParam lhs, rhs;
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} Binary;
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struct {
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size_t iaddr;
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} Jmp;
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struct {
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size_t iaddr;
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IRParam condition;
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} CJmp;
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struct {
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size_t ret_addr;
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size_t fid;
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IRParam *args;
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} CallI;
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};
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} IRTok;
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typedef struct IRToks {
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size_t len, cap;
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IRTok *toks;
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} IRToks;
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void irtoks_init_long(IRToks *v);
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void irtoks_init_short(IRToks *v);
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void irtoks_term(IRToks *v);
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void irtoks_app(IRToks *v, IRTok t);
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void irtoks_eat_irtoks(IRToks *v, IRToks *other, size_t jmp_offset);
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void print_ir(IRToks *v, const BuiltinFunc *builtin_funcs);
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#endif /* IR_H */
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