1066 lines
28 KiB
C++
1066 lines
28 KiB
C++
#ifndef __NASAL_CODEGEN_H__
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#define __NASAL_CODEGEN_H__
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enum op_code
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{
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op_nop,
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op_load,// load value in value_stack to identifier
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op_loadg,
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op_loadl,
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op_pnum,
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op_pone,
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op_pzero,
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op_pnil,
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op_pstr,
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op_newv,
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op_newh,
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op_newf,
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op_vapp,
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op_happ,
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op_para,
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op_defpara,
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op_dynpara,
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op_unot,
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op_usub,
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op_add,
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op_sub,
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op_mul,
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op_div,
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op_lnk,
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op_addeq,
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op_subeq,
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op_muleq,
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op_diveq,
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op_lnkeq,
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op_meq,
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op_eq,
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op_neq,
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op_less,
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op_leq,
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op_grt,
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op_geq,
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op_pop,
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op_jmp, // jump with no condition
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op_jt, // used in operator and/or,jmp when condition is true and DO NOT POP
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op_jf, // used in conditional/loop,jmp when condition is false and POP STACK
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op_counter, // add counter for forindex/foreach
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op_cntpop, // pop counter
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op_findex, // index counter on the top of forindex_stack plus 1
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op_feach, // index counter on the top of forindex_stack plus 1 and get the value in vector
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op_call, // call identifier
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op_callg,
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op_calll,
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op_callv, // call vec[index]
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op_callvi, // call vec[immediate] (used in multi-assign/multi-define)
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op_callh, // call hash.label
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op_callf, // call function(parameters)
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op_callb, // call builtin-function
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op_slcbegin, // begin of slice like: vec[1,2,3:6,0,-1]
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op_slcend, // end of slice
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op_slc, // slice like vec[1]
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op_slc2, // slice like vec[nil:10]
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op_mcall, // get memory of identifier
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op_mcallg,
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op_mcalll,
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op_mcallv, // get memory of vec[index]
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op_mcallh, // get memory of hash.label
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op_ret // return
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};
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struct
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{
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int type;
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const char* name;
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}code_table[]=
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{
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{op_nop, "nop "},
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{op_load, "load "},
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{op_loadg, "loadg "},
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{op_loadl, "loadl "},
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{op_pnum, "pnum "},
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{op_pone, "pone "},
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{op_pzero, "pzero "},
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{op_pnil, "pnil "},
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{op_pstr, "pstr "},
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{op_newv, "newv "},
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{op_newh, "newh "},
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{op_newf, "newf "},
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{op_vapp, "vapp "},
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{op_happ, "happ "},
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{op_para, "para "},
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{op_defpara, "def "},
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{op_dynpara, "dyn "},
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{op_unot, "not "},
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{op_usub, "usub "},
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{op_add, "add "},
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{op_sub, "sub "},
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{op_mul, "mult "},
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{op_div, "div "},
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{op_lnk, "link "},
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{op_addeq, "addeq "},
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{op_subeq, "subeq "},
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{op_muleq, "muleq "},
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{op_diveq, "diveq "},
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{op_lnkeq, "linkeq"},
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{op_meq, "meq "},
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{op_eq, "eq "},
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{op_neq, "neq "},
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{op_less, "less "},
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{op_leq, "leq "},
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{op_grt, "grt "},
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{op_geq, "geq "},
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{op_pop, "pop "},
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{op_jmp, "jmp "},
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{op_jt, "jt "},
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{op_jf, "jf "},
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{op_counter, "cnt "},
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{op_cntpop, "cntpop"},
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{op_findex, "findx "},
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{op_feach, "feach "},
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{op_call, "call "},
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{op_callg, "callg "},
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{op_calll, "calll "},
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{op_callv, "callv "},
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{op_callvi, "callvi"},
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{op_callh, "callh "},
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{op_callf, "callf "},
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{op_callb, "callb "},
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{op_slcbegin, "slcbeg"},
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{op_slcend, "slcend"},
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{op_slc, "slc "},
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{op_slc2, "slc2 "},
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{op_mcall, "mcall "},
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{op_mcallg, "mcallg"},
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{op_mcalll, "mcalll"},
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{op_mcallv, "mcallv"},
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{op_mcallh, "mcallh"},
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{op_ret, "ret "},
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{-1, NULL },
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};
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struct opcode
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{
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unsigned char op;
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unsigned int num;
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opcode(unsigned char _op=op_nop,unsigned int _num=0)
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{
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op=_op;
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num=_num;
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return;
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}
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opcode& operator=(const opcode& tmp)
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{
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op=tmp.op;
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num=tmp.num;
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return *this;
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}
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};
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class nasal_codegen
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{
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private:
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int error;
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int in_forindex;
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int in_foreach;
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std::unordered_map<double,int> number_table;
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std::unordered_map<std::string,int> string_table;
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std::vector<double> num_res_table;
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std::vector<std::string> str_res_table;
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std::vector<opcode> exec_code;
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std::list<std::vector<int> > continue_ptr;
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std::list<std::vector<int> > break_ptr;
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std::vector<std::string> global;
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std::list<std::vector<std::string> > local;
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void regist_number(double);
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void regist_string(std::string&);
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void add_sym(std::string&);
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bool find_sym(std::string&);
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void gen(unsigned char,unsigned int);
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void pop_gen();
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void nil_gen();
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void num_gen(nasal_ast&);
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void str_gen(nasal_ast&);
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void vec_gen(nasal_ast&);
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void hash_gen(nasal_ast&);
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void func_gen(nasal_ast&);
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void call_gen(nasal_ast&);
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void call_id(nasal_ast&);
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void call_hash(nasal_ast&);
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void call_vec(nasal_ast&);
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void call_func(nasal_ast&);
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void mcall(nasal_ast&);
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void mcall_id(nasal_ast&);
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void mcall_vec(nasal_ast&);
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void mcall_hash(nasal_ast&);
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void multi_def(nasal_ast&);
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void single_def(nasal_ast&);
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void def_gen(nasal_ast&);
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void multi_assign_gen(nasal_ast&);
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void conditional_gen(nasal_ast&);
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void loop_gen(nasal_ast&);
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void load_continue_break(int,int);
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void while_gen(nasal_ast&);
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void for_gen(nasal_ast&);
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void forindex_gen(nasal_ast&);
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void foreach_gen(nasal_ast&);
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void or_gen(nasal_ast&);
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void and_gen(nasal_ast&);
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void trino_gen(nasal_ast&);
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void calc_gen(nasal_ast&);
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void block_gen(nasal_ast&);
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void ret_gen(nasal_ast&);
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public:
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nasal_codegen();
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void main_progress(nasal_ast&);
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void print_op(int);
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void print_byte_code();
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std::vector<std::string>& get_str_table();
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std::vector<double>& get_num_table();
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std::vector<opcode>& get_exec_code();
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};
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nasal_codegen::nasal_codegen()
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{
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error=0;
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in_foreach=0;
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in_forindex=0;
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return;
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}
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void nasal_codegen::regist_number(double num)
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{
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int size=number_table.size();
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if(number_table.find(num)==number_table.end())
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number_table[num]=size;
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return;
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}
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void nasal_codegen::regist_string(std::string& str)
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{
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int size=string_table.size();
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if(string_table.find(str)==string_table.end())
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string_table[str]=size;
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return;
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}
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void nasal_codegen::add_sym(std::string&)
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{
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if(local.empty())
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;
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else
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;
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return;
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}
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bool nasal_codegen::find_sym(std::string&)
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{
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return false;
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}
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void nasal_codegen::gen(unsigned char op,unsigned int index)
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{
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opcode opr(op,index);
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exec_code.push_back(opr);
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return;
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}
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void nasal_codegen::pop_gen()
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{
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opcode op(op_pop,0);
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exec_code.push_back(op);
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return;
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}
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void nasal_codegen::nil_gen()
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{
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opcode op(op_pnil,0);
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exec_code.push_back(op);
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return;
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}
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void nasal_codegen::num_gen(nasal_ast& ast)
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{
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double num=ast.get_num();
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if(num==1) gen(op_pone,0);
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else if(num==0) gen(op_pzero,0);
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else
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{
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regist_number(num);
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gen(op_pnum,number_table[num]);
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}
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return;
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}
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void nasal_codegen::str_gen(nasal_ast& ast)
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{
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std::string str=ast.get_str();
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regist_string(str);
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gen(op_pstr,string_table[str]);
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return;
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}
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void nasal_codegen::vec_gen(nasal_ast& ast)
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{
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int size=ast.get_children().size();
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gen(op_newv,0);
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for(int i=0;i<size;++i)
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{
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calc_gen(ast.get_children()[i]);
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gen(op_vapp,0);
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}
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return;
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}
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void nasal_codegen::hash_gen(nasal_ast& ast)
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{
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int size=ast.get_children().size();
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gen(op_newh,0);
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for(int i=0;i<size;++i)
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{
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calc_gen(ast.get_children()[i].get_children()[1]);
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std::string str=ast.get_children()[i].get_children()[0].get_str();
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regist_string(str);
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gen(op_happ,string_table[str]);
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}
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return;
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}
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void nasal_codegen::func_gen(nasal_ast& ast)
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{
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int newfunc_label=exec_code.size();
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gen(op_newf,0);
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nasal_ast& ref_arg=ast.get_children()[0];
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int arg_size=ref_arg.get_children().size();
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for(int i=0;i<arg_size;++i)
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{
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nasal_ast& tmp=ref_arg.get_children()[i];
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if(tmp.get_type()==ast_id)
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{
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std::string str=tmp.get_str();
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regist_string(str);
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gen(op_para,string_table[str]);
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}
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else if(tmp.get_type()==ast_default_arg)
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{
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calc_gen(tmp.get_children()[1]);
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std::string str=tmp.get_children()[0].get_str();
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regist_string(str);
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gen(op_defpara,string_table[str]);
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}
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else if(tmp.get_type()==ast_dynamic_id)
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{
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std::string str=tmp.get_str();
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regist_string(str);
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gen(op_dynpara,string_table[str]);
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}
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}
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exec_code[newfunc_label].num=exec_code.size()+1;
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int ptr=exec_code.size();
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gen(op_jmp,0);
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nasal_ast& block=ast.get_children()[1];
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std::vector<std::string> new_scope;
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local.push_front(new_scope);
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block_gen(block);
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local.pop_front();
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if(!block.get_children().size() || block.get_children().back().get_type()!=ast_return)
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{
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nil_gen();
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gen(op_ret,0);
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}
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exec_code[ptr].num=exec_code.size();
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return;
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}
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void nasal_codegen::call_gen(nasal_ast& ast)
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{
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calc_gen(ast.get_children()[0]);
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if(exec_code.back().op==op_callb)
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return;
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int child_size=ast.get_children().size();
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for(int i=1;i<child_size;++i)
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{
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nasal_ast& tmp=ast.get_children()[i];
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switch(tmp.get_type())
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{
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case ast_callh:call_hash(tmp);break;
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case ast_callv: call_vec(tmp); break;
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case ast_callf:call_func(tmp);break;
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}
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}
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return;
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}
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void nasal_codegen::call_id(nasal_ast& ast)
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{
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std::string str=ast.get_str();
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regist_string(str);
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for(int i=0;builtin_func[i].func;++i)
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if(builtin_func[i].name==str)
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{
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gen(op_callb,i);
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return;
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}
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gen(op_call,string_table[str]);
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return;
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}
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void nasal_codegen::call_hash(nasal_ast& ast)
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{
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std::string str=ast.get_str();
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regist_string(str);
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gen(op_callh,string_table[str]);
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return;
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}
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void nasal_codegen::call_vec(nasal_ast& ast)
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{
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if(ast.get_children().size()==1 && ast.get_children()[0].get_type()!=ast_subvec)
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{
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calc_gen(ast.get_children()[0]);
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gen(op_callv,0);
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return;
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}
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gen(op_slcbegin,0);
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int size=ast.get_children().size();
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for(int i=0;i<size;++i)
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{
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nasal_ast& tmp=ast.get_children()[i];
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if(tmp.get_type()!=ast_subvec)
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{
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calc_gen(tmp);
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gen(op_slc,0);
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}
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else
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{
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calc_gen(tmp.get_children()[0]);
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calc_gen(tmp.get_children()[1]);
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gen(op_slc2,0);
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}
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}
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gen(op_slcend,0);
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return;
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}
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void nasal_codegen::call_func(nasal_ast& ast)
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{
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if(!ast.get_children().size())
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gen(op_newv,0);
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else if(ast.get_children()[0].get_type()==ast_hashmember)
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hash_gen(ast);
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else
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vec_gen(ast);
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gen(op_callf,0);
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return;
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}
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void nasal_codegen::mcall(nasal_ast& ast)
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{
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if(ast.get_type()==ast_id)
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mcall_id(ast);
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else
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mcall_id(ast.get_children()[0]);
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int child_size=ast.get_children().size();
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for(int i=1;i<child_size;++i)
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{
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nasal_ast& tmp=ast.get_children()[i];
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if(tmp.get_type()==ast_callh)
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mcall_hash(tmp);
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else if(tmp.get_type()==ast_callv)
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mcall_vec(tmp);
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}
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return;
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}
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void nasal_codegen::mcall_id(nasal_ast& ast)
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{
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std::string str=ast.get_str();
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regist_string(str);
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gen(op_mcall,string_table[str]);
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return;
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}
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void nasal_codegen::mcall_vec(nasal_ast& ast)
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{
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calc_gen(ast.get_children()[0]);
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gen(op_mcallv,0);
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return;
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}
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void nasal_codegen::mcall_hash(nasal_ast& ast)
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{
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std::string str=ast.get_str();
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regist_string(str);
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gen(op_mcallh,string_table[str]);
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return;
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}
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void nasal_codegen::single_def(nasal_ast& ast)
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{
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calc_gen(ast.get_children()[1]);
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std::string str=ast.get_children()[0].get_str();
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regist_string(str);
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gen(op_load,string_table[str]);
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return;
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}
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void nasal_codegen::multi_def(nasal_ast& ast)
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{
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int size=ast.get_children()[0].get_children().size();
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if(ast.get_children()[1].get_type()==ast_multi_scalar)
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{
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for(int i=0;i<size;++i)
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{
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calc_gen(ast.get_children()[1].get_children()[i]);
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std::string str=ast.get_children()[0].get_children()[i].get_str();
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regist_string(str);
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gen(op_load,string_table[str]);
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}
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}
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else
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{
|
|
calc_gen(ast.get_children()[1]);
|
|
for(int i=0;i<size;++i)
|
|
{
|
|
gen(op_callvi,i);
|
|
std::string str=ast.get_children()[0].get_children()[i].get_str();
|
|
regist_string(str);
|
|
gen(op_load,string_table[str]);
|
|
}
|
|
pop_gen();
|
|
}
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::def_gen(nasal_ast& ast)
|
|
{
|
|
if(ast.get_children()[0].get_type()==ast_id)
|
|
single_def(ast);
|
|
else
|
|
multi_def(ast);
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::multi_assign_gen(nasal_ast& ast)
|
|
{
|
|
int size=ast.get_children()[0].get_children().size();
|
|
if(ast.get_children()[1].get_type()==ast_multi_scalar)
|
|
{
|
|
for(int i=size-1;i>=0;--i)
|
|
calc_gen(ast.get_children()[1].get_children()[i]);
|
|
for(int i=0;i<size;++i)
|
|
{
|
|
mcall(ast.get_children()[0].get_children()[i]);
|
|
gen(op_meq,0);
|
|
pop_gen();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
calc_gen(ast.get_children()[1]);
|
|
for(int i=0;i<size;++i)
|
|
{
|
|
gen(op_callvi,i);
|
|
mcall(ast.get_children()[0].get_children()[i]);
|
|
gen(op_meq,0);
|
|
pop_gen();
|
|
}
|
|
pop_gen();
|
|
}
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::conditional_gen(nasal_ast& ast)
|
|
{
|
|
int size=ast.get_children().size();
|
|
std::vector<int> jmp_label;
|
|
for(int i=0;i<size;++i)
|
|
{
|
|
nasal_ast& tmp=ast.get_children()[i];
|
|
if(tmp.get_type()==ast_if || tmp.get_type()==ast_elsif)
|
|
{
|
|
calc_gen(tmp.get_children()[0]);
|
|
int ptr=exec_code.size();
|
|
gen(op_jf,0);
|
|
block_gen(tmp.get_children()[1]);
|
|
jmp_label.push_back(exec_code.size());
|
|
// without 'else' the last condition doesn't need to jmp
|
|
if(i!=size-1)
|
|
gen(op_jmp,0);
|
|
exec_code[ptr].num=exec_code.size();
|
|
}
|
|
else
|
|
{
|
|
block_gen(tmp.get_children()[0]);
|
|
break;
|
|
}
|
|
}
|
|
for(std::vector<int>::iterator i=jmp_label.begin();i!=jmp_label.end();++i)
|
|
exec_code[*i].num=exec_code.size();
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::loop_gen(nasal_ast& ast)
|
|
{
|
|
std::vector<int> new_level;
|
|
continue_ptr.push_front(new_level);
|
|
break_ptr.push_front(new_level);
|
|
switch(ast.get_type())
|
|
{
|
|
case ast_while: while_gen(ast); break;
|
|
case ast_for: for_gen(ast); break;
|
|
case ast_forindex: ++in_forindex;forindex_gen(ast);--in_forindex; break;
|
|
case ast_foreach: ++in_foreach; foreach_gen(ast); --in_foreach; break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::load_continue_break(int continue_place,int break_place)
|
|
{
|
|
for(int i=0;i<continue_ptr.front().size();++i)
|
|
exec_code[continue_ptr.front()[i]].num=continue_place;
|
|
for(int i=0;i<break_ptr.front().size();++i)
|
|
exec_code[break_ptr.front()[i]].num=break_place;
|
|
continue_ptr.pop_front();
|
|
break_ptr.pop_front();
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::while_gen(nasal_ast& ast)
|
|
{
|
|
int loop_ptr=exec_code.size();
|
|
calc_gen(ast.get_children()[0]);
|
|
int condition_ptr=exec_code.size();
|
|
gen(op_jf,0);
|
|
|
|
block_gen(ast.get_children()[1]);
|
|
gen(op_jmp,loop_ptr);
|
|
exec_code[condition_ptr].num=exec_code.size();
|
|
load_continue_break(exec_code.size()-1,exec_code.size());
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::for_gen(nasal_ast& ast)
|
|
{
|
|
opcode op;
|
|
switch(ast.get_children()[0].get_type())
|
|
{
|
|
case ast_null:break;
|
|
case ast_definition:def_gen(ast.get_children()[0]);break;
|
|
case ast_multi_assign:multi_assign_gen(ast.get_children()[0]);break;
|
|
case ast_nil:
|
|
case ast_num:
|
|
case ast_str:
|
|
case ast_func:break;
|
|
case ast_vec:
|
|
case ast_hash:
|
|
case ast_call:
|
|
case ast_equal:
|
|
case ast_addeq:
|
|
case ast_subeq:
|
|
case ast_multeq:
|
|
case ast_diveq:
|
|
case ast_lnkeq:
|
|
case ast_neg:
|
|
case ast_not:
|
|
case ast_add:
|
|
case ast_sub:
|
|
case ast_mult:
|
|
case ast_div:
|
|
case ast_link:
|
|
case ast_cmpeq:
|
|
case ast_neq:
|
|
case ast_leq:
|
|
case ast_less:
|
|
case ast_geq:
|
|
case ast_grt:
|
|
case ast_trino:calc_gen(ast.get_children()[0]);pop_gen();break;
|
|
}
|
|
int jmp_place=exec_code.size();
|
|
if(ast.get_children()[1].get_type()==ast_null)
|
|
gen(op_pone,0);
|
|
else
|
|
calc_gen(ast.get_children()[1]);
|
|
int label_exit=exec_code.size();
|
|
gen(op_jf,0);
|
|
|
|
block_gen(ast.get_children()[3]);
|
|
int continue_place=exec_code.size();
|
|
switch(ast.get_children()[2].get_type())
|
|
{
|
|
case ast_null:break;
|
|
case ast_definition:def_gen(ast.get_children()[2]);break;
|
|
case ast_multi_assign:multi_assign_gen(ast.get_children()[2]);break;
|
|
case ast_nil:case ast_num:case ast_str:case ast_func:break;
|
|
case ast_vec:case ast_hash:
|
|
case ast_call:
|
|
case ast_equal:case ast_addeq:case ast_subeq:case ast_multeq:case ast_diveq:case ast_lnkeq:
|
|
case ast_neg:case ast_not:
|
|
case ast_add:case ast_sub:case ast_mult:case ast_div:case ast_link:
|
|
case ast_cmpeq:case ast_neq:case ast_leq:case ast_less:case ast_geq:case ast_grt:
|
|
case ast_trino:calc_gen(ast.get_children()[2]);pop_gen();break;
|
|
}
|
|
gen(op_jmp,jmp_place);
|
|
exec_code[label_exit].num=exec_code.size();
|
|
|
|
load_continue_break(continue_place,exec_code.size());
|
|
return;
|
|
}
|
|
void nasal_codegen::forindex_gen(nasal_ast& ast)
|
|
{
|
|
calc_gen(ast.get_children()[1]);
|
|
gen(op_counter,0);
|
|
int ptr=exec_code.size();
|
|
gen(op_findex,0);
|
|
if(ast.get_children()[0].get_type()==ast_new_iter)
|
|
{
|
|
std::string str=ast.get_children()[0].get_children()[0].get_str();
|
|
regist_string(str);
|
|
gen(op_load,string_table[str]);
|
|
}
|
|
else
|
|
{
|
|
mcall(ast.get_children()[0]);
|
|
gen(op_meq,0);
|
|
pop_gen();
|
|
}
|
|
|
|
block_gen(ast.get_children()[2]);
|
|
gen(op_jmp,ptr);
|
|
exec_code[ptr].num=exec_code.size();
|
|
load_continue_break(exec_code.size()-1,exec_code.size());
|
|
pop_gen();// pop vector
|
|
gen(op_cntpop,0);
|
|
return;
|
|
}
|
|
void nasal_codegen::foreach_gen(nasal_ast& ast)
|
|
{
|
|
calc_gen(ast.get_children()[1]);
|
|
gen(op_counter,0);
|
|
int ptr=exec_code.size();
|
|
gen(op_feach,0);
|
|
if(ast.get_children()[0].get_type()==ast_new_iter)
|
|
{
|
|
std::string str=ast.get_children()[0].get_children()[0].get_str();
|
|
regist_string(str);
|
|
gen(op_load,string_table[str]);
|
|
}
|
|
else
|
|
{
|
|
mcall(ast.get_children()[0]);
|
|
gen(op_meq,0);
|
|
pop_gen();
|
|
}
|
|
|
|
block_gen(ast.get_children()[2]);
|
|
gen(op_jmp,ptr);
|
|
exec_code[ptr].num=exec_code.size();
|
|
load_continue_break(exec_code.size()-1,exec_code.size());
|
|
pop_gen();// pop vector
|
|
gen(op_cntpop,0);
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::or_gen(nasal_ast& ast)
|
|
{
|
|
calc_gen(ast.get_children()[0]);
|
|
int l1=exec_code.size();
|
|
gen(op_jt,0);
|
|
|
|
pop_gen();
|
|
calc_gen(ast.get_children()[1]);
|
|
int l2=exec_code.size();
|
|
gen(op_jt,0);
|
|
|
|
pop_gen();
|
|
nil_gen();
|
|
|
|
exec_code[l1].num=exec_code[l2].num=exec_code.size();
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::and_gen(nasal_ast& ast)
|
|
{
|
|
calc_gen(ast.get_children()[0]);
|
|
gen(op_jt,exec_code.size()+2);
|
|
|
|
int lfalse=exec_code.size();
|
|
gen(op_jmp,0);
|
|
pop_gen();// jt jumps here
|
|
|
|
calc_gen(ast.get_children()[1]);
|
|
gen(op_jt,exec_code.size()+3);
|
|
|
|
exec_code[lfalse].num=exec_code.size();
|
|
pop_gen();
|
|
nil_gen();
|
|
//jt jumps here
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::trino_gen(nasal_ast& ast)
|
|
{
|
|
calc_gen(ast.get_children()[0]);
|
|
int lfalse=exec_code.size();
|
|
gen(op_jf,0);
|
|
calc_gen(ast.get_children()[1]);
|
|
int lexit=exec_code.size();
|
|
gen(op_jmp,0);
|
|
exec_code[lfalse].num=exec_code.size();
|
|
calc_gen(ast.get_children()[2]);
|
|
exec_code[lexit].num=exec_code.size();
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::calc_gen(nasal_ast& ast)
|
|
{
|
|
switch(ast.get_type())
|
|
{
|
|
case ast_nil: nil_gen(); break;
|
|
case ast_num: num_gen(ast); break;
|
|
case ast_str: str_gen(ast); break;
|
|
case ast_id: call_id(ast); break;
|
|
case ast_vec: vec_gen(ast); break;
|
|
case ast_hash: hash_gen(ast);break;
|
|
case ast_func: func_gen(ast);break;
|
|
case ast_call: call_gen(ast);break;
|
|
case ast_equal:
|
|
calc_gen(ast.get_children()[1]);
|
|
mcall(ast.get_children()[0]);
|
|
gen(op_meq,0);
|
|
break;
|
|
// ast_addeq(22)~ast_lnkeq(26) op_addeq(23)~op_lnkeq(27)
|
|
case ast_addeq:case ast_subeq:case ast_multeq:case ast_diveq:case ast_lnkeq:
|
|
calc_gen(ast.get_children()[1]);
|
|
mcall(ast.get_children()[0]);
|
|
gen(ast.get_type()-ast_addeq+op_addeq,0);
|
|
break;
|
|
case ast_or:or_gen(ast);break;
|
|
case ast_and:and_gen(ast);break;
|
|
// ast_add(33)~ast_link(37) op_add(18)~op_lnk(22)
|
|
case ast_add:case ast_sub:case ast_mult:case ast_div:case ast_link:
|
|
calc_gen(ast.get_children()[0]);
|
|
calc_gen(ast.get_children()[1]);
|
|
gen(ast.get_type()-ast_add+op_add,0);
|
|
break;
|
|
// ast_cmpeq(27)~ast_geq(32) op_eq(29)~op_geq(34)
|
|
case ast_cmpeq:case ast_neq:case ast_less:case ast_leq:case ast_grt:case ast_geq:
|
|
calc_gen(ast.get_children()[0]);
|
|
calc_gen(ast.get_children()[1]);
|
|
gen(ast.get_type()-ast_cmpeq+op_eq,0);
|
|
break;
|
|
case ast_trino:trino_gen(ast);break;
|
|
case ast_neg:
|
|
calc_gen(ast.get_children()[0]);
|
|
gen(op_usub,0);
|
|
break;
|
|
case ast_not:
|
|
calc_gen(ast.get_children()[0]);
|
|
gen(op_unot,0);
|
|
break;
|
|
case ast_definition:
|
|
single_def(ast);
|
|
call_id(ast.get_children()[0]);
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::block_gen(nasal_ast& ast)
|
|
{
|
|
int size=ast.get_children().size();
|
|
for(int i=0;i<size;++i)
|
|
{
|
|
nasal_ast& tmp=ast.get_children()[i];
|
|
switch(tmp.get_type())
|
|
{
|
|
case ast_null:case ast_nil:case ast_num:case ast_str:case ast_func:break;
|
|
case ast_definition:def_gen(tmp);break;
|
|
case ast_multi_assign:multi_assign_gen(tmp);break;
|
|
case ast_conditional:conditional_gen(tmp);break;
|
|
case ast_continue:
|
|
continue_ptr.front().push_back(exec_code.size());
|
|
gen(op_jmp,0);
|
|
break;
|
|
case ast_break:
|
|
break_ptr.front().push_back(exec_code.size());
|
|
gen(op_jmp,0);
|
|
break;
|
|
case ast_while:
|
|
case ast_for:
|
|
case ast_forindex:
|
|
case ast_foreach:loop_gen(tmp);break;
|
|
case ast_id:
|
|
case ast_vec:
|
|
case ast_hash:
|
|
case ast_call:
|
|
case ast_equal:
|
|
case ast_addeq:
|
|
case ast_subeq:
|
|
case ast_multeq:
|
|
case ast_diveq:
|
|
case ast_lnkeq:
|
|
case ast_neg:
|
|
case ast_not:
|
|
case ast_add:
|
|
case ast_sub:
|
|
case ast_mult:
|
|
case ast_div:
|
|
case ast_link:
|
|
case ast_cmpeq:
|
|
case ast_neq:
|
|
case ast_leq:
|
|
case ast_less:
|
|
case ast_geq:
|
|
case ast_grt:
|
|
case ast_or:
|
|
case ast_and:
|
|
case ast_trino:calc_gen(tmp);pop_gen();break;
|
|
case ast_return:ret_gen(tmp);break;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::ret_gen(nasal_ast& ast)
|
|
{
|
|
for(int i=0;i<in_foreach;++i)
|
|
{
|
|
gen(op_pop,0);
|
|
gen(op_cntpop,0);
|
|
}
|
|
for(int i=0;i<in_forindex;++i)
|
|
{
|
|
gen(op_pop,0);
|
|
gen(op_cntpop,0);
|
|
}
|
|
if(ast.get_children().size())
|
|
calc_gen(ast.get_children()[0]);
|
|
else
|
|
nil_gen();
|
|
gen(op_ret,0);
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::main_progress(nasal_ast& ast)
|
|
{
|
|
error=0;
|
|
number_table.clear();
|
|
string_table.clear();
|
|
exec_code.clear();
|
|
|
|
int size=ast.get_children().size();
|
|
for(int i=0;i<size;++i)
|
|
{
|
|
nasal_ast& tmp=ast.get_children()[i];
|
|
switch(tmp.get_type())
|
|
{
|
|
case ast_null:case ast_nil:case ast_num:case ast_str:case ast_func:break;
|
|
case ast_definition:def_gen(tmp);break;
|
|
case ast_multi_assign:multi_assign_gen(tmp);break;
|
|
case ast_conditional:conditional_gen(tmp);break;
|
|
case ast_while:
|
|
case ast_for:
|
|
case ast_forindex:
|
|
case ast_foreach:loop_gen(tmp);break;
|
|
case ast_id:
|
|
case ast_vec:
|
|
case ast_hash:
|
|
case ast_call:
|
|
case ast_equal:
|
|
case ast_addeq:
|
|
case ast_subeq:
|
|
case ast_multeq:
|
|
case ast_diveq:
|
|
case ast_lnkeq:
|
|
case ast_neg:
|
|
case ast_not:
|
|
case ast_add:
|
|
case ast_sub:
|
|
case ast_mult:
|
|
case ast_div:
|
|
case ast_link:
|
|
case ast_cmpeq:
|
|
case ast_neq:
|
|
case ast_leq:
|
|
case ast_less:
|
|
case ast_geq:
|
|
case ast_grt:
|
|
case ast_or:
|
|
case ast_and:
|
|
case ast_trino:calc_gen(tmp);pop_gen();break;
|
|
}
|
|
}
|
|
gen(op_nop,0);
|
|
num_res_table.resize(number_table.size());
|
|
str_res_table.resize(string_table.size());
|
|
for(auto i=number_table.begin();i!=number_table.end();++i)
|
|
num_res_table[i->second]=i->first;
|
|
for(auto i=string_table.begin();i!=string_table.end();++i)
|
|
str_res_table[i->second]=i->first;
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::print_op(int index)
|
|
{
|
|
// print opcode ptr
|
|
printf("0x%.8x: ",index);
|
|
// print opcode name
|
|
for(int i=0;code_table[i].name;++i)
|
|
if(exec_code[index].op==code_table[i].type)
|
|
{
|
|
std::cout<<code_table[i].name<<" ";
|
|
break;
|
|
}
|
|
// print opcode index
|
|
printf("0x%.8x ",exec_code[index].num);
|
|
// print detail info
|
|
switch(exec_code[index].op)
|
|
{
|
|
case op_pnum:std::cout<<'('<<num_res_table[exec_code[index].num]<<')';break;
|
|
case op_callb:std::cout<<'('<<builtin_func[exec_code[index].num].name<<')';break;
|
|
case op_happ:
|
|
case op_call:
|
|
case op_mcall:
|
|
case op_pstr:
|
|
case op_callh:
|
|
case op_mcallh:
|
|
case op_para:
|
|
case op_defpara:
|
|
case op_dynpara:
|
|
case op_load:std::cout<<'('<<str_res_table[exec_code[index].num]<<')';break;
|
|
}
|
|
std::cout<<'\n';
|
|
return;
|
|
}
|
|
|
|
void nasal_codegen::print_byte_code()
|
|
{
|
|
for(int i=0;i<num_res_table.size();++i)
|
|
std::cout<<".number "<<num_res_table[i]<<'\n';
|
|
for(int i=0;i<str_res_table.size();++i)
|
|
std::cout<<".symbol "<<str_res_table[i]<<'\n';
|
|
int size=exec_code.size();
|
|
for(int i=0;i<size;++i)
|
|
print_op(i);
|
|
return;
|
|
}
|
|
|
|
std::vector<std::string>& nasal_codegen::get_str_table()
|
|
{
|
|
return str_res_table;
|
|
}
|
|
|
|
std::vector<double>& nasal_codegen::get_num_table()
|
|
{
|
|
return num_res_table;
|
|
}
|
|
|
|
std::vector<opcode>& nasal_codegen::get_exec_code()
|
|
{
|
|
return exec_code;
|
|
}
|
|
|
|
#endif |