floraachy/Nasal-Interpreter
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bug fixed

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This commit is contained in:
Valk Richard Li
2020-12-09 18:34:49 +08:00
parent 14852bfc2e
commit 7f6a521ad7
3 changed files with 50 additions and 133 deletions
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nasal_codegen.h
+4 -101
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@@ -112,12 +112,10 @@ struct
struct opcode struct opcode
{ {
unsigned char op; unsigned char op;
unsigned int scope;
unsigned int index; unsigned int index;
opcode() opcode()
{ {
op=op_nop; op=op_nop;
scope=0;
index=0; index=0;
return; return;
} }
@@ -136,7 +134,6 @@ private:
std::vector<opcode> exec_code; std::vector<opcode> exec_code;
std::vector<int> continue_ptr; std::vector<int> continue_ptr;
std::vector<int> break_ptr; std::vector<int> break_ptr;
int scope_depth;
int error; int error;
void regist_number(double); void regist_number(double);
void regist_string(std::string); void regist_string(std::string);
@@ -206,7 +203,6 @@ void nasal_codegen::pop_gen()
{ {
opcode op; opcode op;
op.op=op_pop; op.op=op_pop;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -216,7 +212,6 @@ void nasal_codegen::nil_gen()
{ {
opcode op; opcode op;
op.op=op_pushnil; op.op=op_pushnil;
op.scope=scope_depth;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
} }
@@ -235,7 +230,6 @@ void nasal_codegen::number_gen(nasal_ast& ast)
op.op=op_pushnum; op.op=op_pushnum;
op.index=number_table[num]; op.index=number_table[num];
} }
op.scope=scope_depth;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
} }
@@ -246,7 +240,6 @@ void nasal_codegen::string_gen(nasal_ast& ast)
regist_string(str); regist_string(str);
opcode op; opcode op;
op.op=op_pushstr; op.op=op_pushstr;
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -257,7 +250,6 @@ void nasal_codegen::vector_gen(nasal_ast& ast)
int size=ast.get_children().size(); int size=ast.get_children().size();
opcode op; opcode op;
op.op=op_newvec; op.op=op_newvec;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
for(int i=0;i<size;++i) for(int i=0;i<size;++i)
@@ -276,7 +268,6 @@ void nasal_codegen::hash_gen(nasal_ast& ast)
int size=ast.get_children().size(); int size=ast.get_children().size();
opcode op; opcode op;
op.op=op_newhash; op.op=op_newhash;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
for(int i=0;i<size;++i) for(int i=0;i<size;++i)
@@ -284,7 +275,6 @@ void nasal_codegen::hash_gen(nasal_ast& ast)
string_gen(ast.get_children()[i].get_children()[0]); string_gen(ast.get_children()[i].get_children()[0]);
calculation_gen(ast.get_children()[i].get_children()[1]); calculation_gen(ast.get_children()[i].get_children()[1]);
op.op=op_hashapp; op.op=op_hashapp;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -295,7 +285,6 @@ void nasal_codegen::function_gen(nasal_ast& ast)
{ {
opcode op; opcode op;
op.op=op_newfunc; op.op=op_newfunc;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
@@ -335,11 +324,9 @@ void nasal_codegen::function_gen(nasal_ast& ast)
} }
op.op=op_entry; op.op=op_entry;
op.scope=scope_depth;
op.index=exec_code.size()+2; op.index=exec_code.size()+2;
exec_code.push_back(op); exec_code.push_back(op);
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
op.index=0; op.index=0;
int ptr=exec_code.size(); int ptr=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
@@ -349,11 +336,9 @@ void nasal_codegen::function_gen(nasal_ast& ast)
if(!block.get_children().size() || block.get_children().back().get_type()!=ast_return) if(!block.get_children().size() || block.get_children().back().get_type()!=ast_return)
{ {
op.op=op_pushnil; op.op=op_pushnil;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
op.op=op_return; op.op=op_return;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -393,7 +378,6 @@ void nasal_codegen::call_id(nasal_ast& ast)
break; break;
} }
regist_string(str); regist_string(str);
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -405,7 +389,6 @@ void nasal_codegen::call_hash(nasal_ast& ast)
op.op=op_callh; op.op=op_callh;
std::string str=ast.get_str(); std::string str=ast.get_str();
regist_string(str); regist_string(str);
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -418,14 +401,12 @@ void nasal_codegen::call_vec(nasal_ast& ast)
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
opcode op; opcode op;
op.op=op_callv; op.op=op_callv;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
} }
opcode op; opcode op;
op.op=op_slicebegin; op.op=op_slicebegin;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
int size=ast.get_children().size(); int size=ast.get_children().size();
@@ -436,7 +417,6 @@ void nasal_codegen::call_vec(nasal_ast& ast)
{ {
calculation_gen(tmp); calculation_gen(tmp);
op.op=op_slice; op.op=op_slice;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -445,13 +425,11 @@ void nasal_codegen::call_vec(nasal_ast& ast)
calculation_gen(tmp.get_children()[0]); calculation_gen(tmp.get_children()[0]);
calculation_gen(tmp.get_children()[1]); calculation_gen(tmp.get_children()[1]);
op.op=op_slice2; op.op=op_slice2;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
} }
op.op=op_sliceend; op.op=op_sliceend;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -463,12 +441,10 @@ void nasal_codegen::call_func(nasal_ast& ast)
{ {
opcode op; opcode op;
op.op=op_newvec; op.op=op_newvec;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
op.op=op_callf; op.op=op_callf;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -477,7 +453,6 @@ void nasal_codegen::call_func(nasal_ast& ast)
{ {
opcode op; opcode op;
op.op=op_newhash; op.op=op_newhash;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
int size=ast.get_children().size(); int size=ast.get_children().size();
@@ -487,12 +462,10 @@ void nasal_codegen::call_func(nasal_ast& ast)
string_gen(tmp.get_children()[0]); string_gen(tmp.get_children()[0]);
calculation_gen(tmp.get_children()[1]); calculation_gen(tmp.get_children()[1]);
op.op=op_hashapp; op.op=op_hashapp;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
op.op=op_callf; op.op=op_callf;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -500,7 +473,6 @@ void nasal_codegen::call_func(nasal_ast& ast)
{ {
opcode op; opcode op;
op.op=op_newvec; op.op=op_newvec;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
int size=ast.get_children().size(); int size=ast.get_children().size();
@@ -509,12 +481,10 @@ void nasal_codegen::call_func(nasal_ast& ast)
nasal_ast& tmp=ast.get_children()[i]; nasal_ast& tmp=ast.get_children()[i];
calculation_gen(tmp); calculation_gen(tmp);
op.op=op_vecapp; op.op=op_vecapp;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
op.op=op_callf; op.op=op_callf;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -545,7 +515,6 @@ void nasal_codegen::mem_call_id(nasal_ast& ast)
regist_string(str); regist_string(str);
opcode op; opcode op;
op.op=op_mcall; op.op=op_mcall;
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -556,7 +525,6 @@ void nasal_codegen::mem_call_vec(nasal_ast& ast)
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
opcode op; opcode op;
op.op=op_mcallv; op.op=op_mcallv;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -568,7 +536,6 @@ void nasal_codegen::mem_call_hash(nasal_ast& ast)
regist_string(str); regist_string(str);
opcode op; opcode op;
op.op=op_mcallh; op.op=op_mcallh;
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -581,7 +548,6 @@ void nasal_codegen::single_def(nasal_ast& ast)
op.op=op_load; op.op=op_load;
std::string str=ast.get_children()[0].get_str(); std::string str=ast.get_children()[0].get_str();
regist_string(str); regist_string(str);
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
return; return;
@@ -598,7 +564,6 @@ void nasal_codegen::multi_def(nasal_ast& ast)
op.op=op_load; op.op=op_load;
std::string str=ast.get_children()[0].get_children()[i].get_str(); std::string str=ast.get_children()[0].get_children()[i].get_str();
regist_string(str); regist_string(str);
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -610,13 +575,11 @@ void nasal_codegen::multi_def(nasal_ast& ast)
{ {
opcode op; opcode op;
op.op=op_callvi; op.op=op_callvi;
op.scope=scope_depth;
op.index=i; op.index=i;
exec_code.push_back(op); exec_code.push_back(op);
op.op=op_load; op.op=op_load;
std::string str=ast.get_children()[0].get_children()[i].get_str(); std::string str=ast.get_children()[0].get_children()[i].get_str();
regist_string(str); regist_string(str);
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -645,7 +608,6 @@ void nasal_codegen::multi_assignment_gen(nasal_ast& ast)
mem_call(ast.get_children()[0].get_children()[i]); mem_call(ast.get_children()[0].get_children()[i]);
opcode op; opcode op;
op.op=op_meq; op.op=op_meq;
op.scope=scope_depth;
exec_code.push_back(op); exec_code.push_back(op);
pop_gen(); pop_gen();
} }
@@ -657,12 +619,10 @@ void nasal_codegen::multi_assignment_gen(nasal_ast& ast)
{ {
opcode op; opcode op;
op.op=op_callvi; op.op=op_callvi;
op.scope=scope_depth;
op.index=i; op.index=i;
exec_code.push_back(op); exec_code.push_back(op);
mem_call(ast.get_children()[0].get_children()[i]); mem_call(ast.get_children()[0].get_children()[i]);
op.op=op_meq; op.op=op_meq;
op.scope=scope_depth;
exec_code.push_back(op); exec_code.push_back(op);
pop_gen(); pop_gen();
} }
@@ -682,13 +642,11 @@ void nasal_codegen::conditional_gen(nasal_ast& ast)
{ {
calculation_gen(tmp.get_children()[0]); calculation_gen(tmp.get_children()[0]);
op.op=op_jfp; op.op=op_jfp;
op.scope=scope_depth;
int ptr=exec_code.size(); int ptr=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
pop_gen(); pop_gen();
block_gen(tmp.get_children()[1]); block_gen(tmp.get_children()[1]);
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
jmp_label.push_back(exec_code.size()); jmp_label.push_back(exec_code.size());
exec_code.push_back(op); exec_code.push_back(op);
exec_code[ptr].index=exec_code.size(); exec_code[ptr].index=exec_code.size();
@@ -733,13 +691,11 @@ void nasal_codegen::while_gen(nasal_ast& ast)
int loop_ptr=exec_code.size(); int loop_ptr=exec_code.size();
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
op.op=op_jfp; op.op=op_jfp;
op.scope=scope_depth;
int condition_ptr=exec_code.size(); int condition_ptr=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
pop_gen(); pop_gen();
block_gen(ast.get_children()[1]); block_gen(ast.get_children()[1]);
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
op.index=loop_ptr; op.index=loop_ptr;
exec_code.push_back(op); exec_code.push_back(op);
exec_code[condition_ptr].index=exec_code.size(); exec_code[condition_ptr].index=exec_code.size();
@@ -750,7 +706,6 @@ void nasal_codegen::while_gen(nasal_ast& ast)
void nasal_codegen::for_gen(nasal_ast& ast) void nasal_codegen::for_gen(nasal_ast& ast)
{ {
opcode op; opcode op;
++scope_depth;
switch(ast.get_children()[0].get_type()) switch(ast.get_children()[0].get_type())
{ {
case ast_null:break; case ast_null:break;
@@ -769,14 +724,12 @@ void nasal_codegen::for_gen(nasal_ast& ast)
if(ast.get_children()[1].get_type()==ast_null) if(ast.get_children()[1].get_type()==ast_null)
{ {
op.op=op_pushone; op.op=op_pushone;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
else else
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
op.op=op_jfp; op.op=op_jfp;
op.scope=scope_depth;
int label_exit=exec_code.size(); int label_exit=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
pop_gen(); pop_gen();
@@ -796,12 +749,10 @@ void nasal_codegen::for_gen(nasal_ast& ast)
case ast_trinocular:calculation_gen(ast.get_children()[2]);pop_gen();break; case ast_trinocular:calculation_gen(ast.get_children()[2]);pop_gen();break;
} }
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
op.index=jmp_place; op.index=jmp_place;
exec_code.push_back(op); exec_code.push_back(op);
exec_code[label_exit].index=exec_code.size(); exec_code[label_exit].index=exec_code.size();
load_continue_break(); load_continue_break();
--scope_depth;
return; return;
} }
void nasal_codegen::forindex_gen(nasal_ast& ast) void nasal_codegen::forindex_gen(nasal_ast& ast)
@@ -810,7 +761,6 @@ void nasal_codegen::forindex_gen(nasal_ast& ast)
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
op.op=op_forindex; op.op=op_forindex;
op.scope=scope_depth;
op.index=0; op.index=0;
int ptr=exec_code.size(); int ptr=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
@@ -819,7 +769,6 @@ void nasal_codegen::forindex_gen(nasal_ast& ast)
op.op=op_load; op.op=op_load;
std::string str=ast.get_children()[0].get_children()[0].get_str(); std::string str=ast.get_children()[0].get_children()[0].get_str();
regist_string(str); regist_string(str);
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -827,13 +776,11 @@ void nasal_codegen::forindex_gen(nasal_ast& ast)
{ {
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
op.op=op_meq; op.op=op_meq;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
block_gen(ast.get_children()[2]); block_gen(ast.get_children()[2]);
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
op.index=ptr; op.index=ptr;
exec_code.push_back(op); exec_code.push_back(op);
exec_code[ptr].index=exec_code.size(); exec_code[ptr].index=exec_code.size();
@@ -846,7 +793,6 @@ void nasal_codegen::foreach_gen(nasal_ast& ast)
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
op.op=op_foreach; op.op=op_foreach;
op.scope=scope_depth;
op.index=0; op.index=0;
int ptr=exec_code.size(); int ptr=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
@@ -855,7 +801,6 @@ void nasal_codegen::foreach_gen(nasal_ast& ast)
op.op=op_load; op.op=op_load;
std::string str=ast.get_children()[0].get_children()[0].get_str(); std::string str=ast.get_children()[0].get_children()[0].get_str();
regist_string(str); regist_string(str);
op.scope=scope_depth;
op.index=string_table[str]; op.index=string_table[str];
exec_code.push_back(op); exec_code.push_back(op);
} }
@@ -863,13 +808,11 @@ void nasal_codegen::foreach_gen(nasal_ast& ast)
{ {
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
op.op=op_meq; op.op=op_meq;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
} }
block_gen(ast.get_children()[2]); block_gen(ast.get_children()[2]);
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
op.index=ptr; op.index=ptr;
exec_code.push_back(op); exec_code.push_back(op);
exec_code[ptr].index=exec_code.size(); exec_code[ptr].index=exec_code.size();
@@ -890,7 +833,6 @@ void nasal_codegen::or_gen(nasal_ast& ast)
int l1,l2; int l1,l2;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
op.op=op_jmptrue; op.op=op_jmptrue;
op.scope=scope_depth;
op.index=0; op.index=0;
l1=exec_code.size(); l1=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
@@ -898,7 +840,6 @@ void nasal_codegen::or_gen(nasal_ast& ast)
pop_gen(); pop_gen();
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
op.op=op_jmptrue; op.op=op_jmptrue;
op.scope=scope_depth;
op.index=0; op.index=0;
l2=exec_code.size(); l2=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
@@ -924,19 +865,16 @@ void nasal_codegen::and_gen(nasal_ast& ast)
opcode op; opcode op;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
op.op=op_jmptrue; op.op=op_jmptrue;
op.scope=scope_depth;
op.index=exec_code.size()+2; op.index=exec_code.size()+2;
exec_code.push_back(op); exec_code.push_back(op);
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
int ptr=exec_code.size(); int ptr=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
pop_gen(); pop_gen();
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
op.op=op_jmptrue; op.op=op_jmptrue;
op.scope=scope_depth;
op.index=exec_code.size()+3; op.index=exec_code.size()+3;
exec_code.push_back(op); exec_code.push_back(op);
@@ -952,13 +890,11 @@ void nasal_codegen::trino_gen(nasal_ast& ast)
opcode op; opcode op;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
op.op=op_jmpfalse; op.op=op_jmpfalse;
op.scope=scope_depth;
int ptr=exec_code.size(); int ptr=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
pop_gen(); pop_gen();
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
int ptr_exit=exec_code.size(); int ptr_exit=exec_code.size();
exec_code.push_back(op); exec_code.push_back(op);
exec_code[ptr].index=exec_code.size(); exec_code[ptr].index=exec_code.size();
@@ -984,42 +920,36 @@ void nasal_codegen::calculation_gen(nasal_ast& ast)
case ast_call:call_gen(ast);break; case ast_call:call_gen(ast);break;
case ast_equal: case ast_equal:
op.op=op_meq; op.op=op_meq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_add_equal: case ast_add_equal:
op.op=op_addeq; op.op=op_addeq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_sub_equal: case ast_sub_equal:
op.op=op_subeq; op.op=op_subeq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_mult_equal: case ast_mult_equal:
op.op=op_muleq; op.op=op_muleq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_div_equal: case ast_div_equal:
op.op=op_diveq; op.op=op_diveq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_link_equal: case ast_link_equal:
op.op=op_lnkeq; op.op=op_lnkeq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
mem_call(ast.get_children()[0]); mem_call(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
@@ -1028,77 +958,66 @@ void nasal_codegen::calculation_gen(nasal_ast& ast)
case ast_and:and_gen(ast);break; case ast_and:and_gen(ast);break;
case ast_add: case ast_add:
op.op=op_add; op.op=op_add;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_sub: case ast_sub:
op.op=op_sub; op.op=op_sub;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_mult: case ast_mult:
op.op=op_mul; op.op=op_mul;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_div: case ast_div:
op.op=op_div; op.op=op_div;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_link: case ast_link:
op.op=op_lnk; op.op=op_lnk;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_cmp_equal: case ast_cmp_equal:
op.op=op_eq; op.op=op_eq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_cmp_not_equal: case ast_cmp_not_equal:
op.op=op_neq; op.op=op_neq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_less_equal: case ast_less_equal:
op.op=op_leq; op.op=op_leq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_less_than: case ast_less_than:
op.op=op_less; op.op=op_less;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_greater_equal: case ast_greater_equal:
op.op=op_geq; op.op=op_geq;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_greater_than: case ast_greater_than:
op.op=op_grt; op.op=op_grt;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
calculation_gen(ast.get_children()[1]); calculation_gen(ast.get_children()[1]);
exec_code.push_back(op); exec_code.push_back(op);
@@ -1106,13 +1025,11 @@ void nasal_codegen::calculation_gen(nasal_ast& ast)
case ast_trinocular:trino_gen(ast);break; case ast_trinocular:trino_gen(ast);break;
case ast_unary_sub: case ast_unary_sub:
op.op=op_usub; op.op=op_usub;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_unary_not: case ast_unary_not:
op.op=op_unot; op.op=op_unot;
op.scope=scope_depth;
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
exec_code.push_back(op); exec_code.push_back(op);
break; break;
@@ -1123,8 +1040,6 @@ void nasal_codegen::calculation_gen(nasal_ast& ast)
void nasal_codegen::block_gen(nasal_ast& ast) void nasal_codegen::block_gen(nasal_ast& ast)
{ {
opcode op; opcode op;
++scope_depth;
int size=ast.get_children().size(); int size=ast.get_children().size();
for(int i=0;i<size;++i) for(int i=0;i<size;++i)
{ {
@@ -1141,14 +1056,12 @@ void nasal_codegen::block_gen(nasal_ast& ast)
case ast_conditional:conditional_gen(tmp);break; case ast_conditional:conditional_gen(tmp);break;
case ast_continue: case ast_continue:
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
op.index=0; op.index=0;
continue_ptr.push_back(exec_code.size()); continue_ptr.push_back(exec_code.size());
exec_code.push_back(op); exec_code.push_back(op);
break; break;
case ast_break: case ast_break:
op.op=op_jmp; op.op=op_jmp;
op.scope=scope_depth;
op.index=0; op.index=0;
break_ptr.push_back(exec_code.size()); break_ptr.push_back(exec_code.size());
exec_code.push_back(op); exec_code.push_back(op);
@@ -1186,8 +1099,6 @@ void nasal_codegen::block_gen(nasal_ast& ast)
case ast_return:return_gen(tmp);break; case ast_return:return_gen(tmp);break;
} }
} }
--scope_depth;
return; return;
} }
@@ -1197,7 +1108,6 @@ void nasal_codegen::return_gen(nasal_ast& ast)
calculation_gen(ast.get_children()[0]); calculation_gen(ast.get_children()[0]);
opcode op; opcode op;
op.op=op_return; op.op=op_return;
op.scope=scope_depth;
exec_code.push_back(op); exec_code.push_back(op);
return; return;
} }
@@ -1205,7 +1115,6 @@ void nasal_codegen::return_gen(nasal_ast& ast)
void nasal_codegen::main_progress(nasal_ast& ast) void nasal_codegen::main_progress(nasal_ast& ast)
{ {
error=0; error=0;
scope_depth=0;
number_table.clear(); number_table.clear();
string_table.clear(); string_table.clear();
exec_code.clear(); exec_code.clear();
@@ -1258,7 +1167,6 @@ void nasal_codegen::main_progress(nasal_ast& ast)
} }
opcode op; opcode op;
op.op=op_nop; op.op=op_nop;
op.scope=scope_depth;
op.index=0; op.index=0;
exec_code.push_back(op); exec_code.push_back(op);
@@ -1273,6 +1181,7 @@ void nasal_codegen::main_progress(nasal_ast& ast)
void nasal_codegen::print_op(int index) void nasal_codegen::print_op(int index)
{ {
// print opcode ptr
std::string numinfo=""; std::string numinfo="";
int num=index; int num=index;
for(int i=0;i<8;++i) for(int i=0;i<8;++i)
@@ -1282,21 +1191,14 @@ void nasal_codegen::print_op(int index)
num>>=4; num>>=4;
} }
std::cout<<"0x"<<numinfo<<": "; std::cout<<"0x"<<numinfo<<": ";
numinfo=""; // print opcode name
num=exec_code[index].scope;
for(int i=0;i<8;++i)
{
int tmp=num&0x0f;
numinfo=(char)(tmp>9? 'a'+tmp-10:'0'+tmp)+numinfo;
num>>=4;
}
std::cout<<"[0x"<<numinfo<<"]";
for(int i=0;code_table[i].name;++i) for(int i=0;code_table[i].name;++i)
if(exec_code[index].op==code_table[i].type) if(exec_code[index].op==code_table[i].type)
{ {
std::cout<<code_table[i].name<<" "; std::cout<<code_table[i].name<<" ";
break; break;
} }
// print opcode index
numinfo=""; numinfo="";
num=exec_code[index].index; num=exec_code[index].index;
for(int i=0;i<8;++i) for(int i=0;i<8;++i)
@@ -1306,6 +1208,7 @@ void nasal_codegen::print_op(int index)
num>>=4; num>>=4;
} }
std::cout<<"0x"<<numinfo<<" "; std::cout<<"0x"<<numinfo<<" ";
// print detail info
switch(exec_code[index].op) switch(exec_code[index].op)
{ {
case op_pushnum:std::cout<<'('<<number_result_table[exec_code[index].index]<<')';break; case op_pushnum:std::cout<<'('<<number_result_table[exec_code[index].index]<<')';break;
nasal_gc.h
+44 -31
View File
@@ -31,7 +31,6 @@ private:
public: public:
nasal_vector(nasal_virtual_machine&); nasal_vector(nasal_virtual_machine&);
~nasal_vector(); ~nasal_vector();
void set_vm(nasal_virtual_machine&);
void add_elem(int); void add_elem(int);
int del_elem(); int del_elem();
int size(); int size();
@@ -49,7 +48,6 @@ private:
public: public:
nasal_hash(nasal_virtual_machine&); nasal_hash(nasal_virtual_machine&);
~nasal_hash(); ~nasal_hash();
void set_vm(nasal_virtual_machine&);
void add_elem(std::string,int); void add_elem(std::string,int);
void del_elem(std::string); void del_elem(std::string);
int size(); int size();
@@ -71,7 +69,6 @@ private:
public: public:
nasal_function(nasal_virtual_machine&); nasal_function(nasal_virtual_machine&);
~nasal_function(); ~nasal_function();
void set_vm(nasal_virtual_machine&);
void set_closure_addr(int); void set_closure_addr(int);
int get_closure_addr(); int get_closure_addr();
void set_arguments(nasal_ast&); void set_arguments(nasal_ast&);
@@ -87,11 +84,12 @@ private:
// and this memory_manager_memory space stores an address to garbage_collector_memory // and this memory_manager_memory space stores an address to garbage_collector_memory
// and this address points to an nasal_hash // and this address points to an nasal_hash
nasal_virtual_machine& vm; nasal_virtual_machine& vm;
std::map<std::string,int> elems; std::list<std::map<std::string,int> > elems;
public: public:
nasal_closure(nasal_virtual_machine&); nasal_closure(nasal_virtual_machine&);
~nasal_closure(); ~nasal_closure();
void set_vm(nasal_virtual_machine&); void add_scope();
void del_scope();
void add_new_value(std::string,int); void add_new_value(std::string,int);
int get_value_address(std::string); int get_value_address(std::string);
int get_mem_address(std::string); int get_mem_address(std::string);
@@ -167,11 +165,6 @@ nasal_vector::~nasal_vector()
elems.clear(); elems.clear();
return; return;
} }
void nasal_vector::set_vm(nasal_virtual_machine& nvm)
{
vm=nvm;
return;
}
void nasal_vector::add_elem(int value_address) void nasal_vector::add_elem(int value_address)
{ {
int memory_address=vm.mem_alloc(value_address); int memory_address=vm.mem_alloc(value_address);
@@ -252,11 +245,6 @@ nasal_hash::~nasal_hash()
elems.clear(); elems.clear();
return; return;
} }
void nasal_hash::set_vm(nasal_virtual_machine& nvm)
{
vm=nvm;
return;
}
void nasal_hash::add_elem(std::string key,int value_address) void nasal_hash::add_elem(std::string key,int value_address)
{ {
if(elems.find(key)==elems.end()) if(elems.find(key)==elems.end())
@@ -442,52 +430,77 @@ nasal_ast& nasal_function::get_run_block()
/*functions of nasal_closure*/ /*functions of nasal_closure*/
nasal_closure::nasal_closure(nasal_virtual_machine& nvm):vm(nvm) nasal_closure::nasal_closure(nasal_virtual_machine& nvm):vm(nvm)
{ {
std::map<std::string,int> new_scope;
elems.push_back(new_scope);
return; return;
} }
nasal_closure::~nasal_closure() nasal_closure::~nasal_closure()
{ {
for(std::map<std::string,int>::iterator i=elems.begin();i!=elems.end();++i) for(std::list<std::map<std::string,int> >::iterator i=elems.begin();i!=elems.end();++i)
vm.mem_free(i->second); for(std::map<std::string,int>::iterator j=i->begin();j!=i->end();++j)
vm.mem_free(j->second);
elems.clear(); elems.clear();
return; return;
} }
void nasal_closure::add_scope()
{
std::map<std::string,int> new_scope;
elems.push_back(new_scope);
return;
}
void nasal_closure::del_scope()
{
std::map<std::string,int>& last_scope=elems.back();
for(std::map<std::string,int>::iterator i=last_scope.begin();i!=last_scope.end();++i)
vm.mem_free(i->second);
elems.pop_back();
return;
}
void nasal_closure::add_new_value(std::string key,int value_address) void nasal_closure::add_new_value(std::string key,int value_address)
{ {
int new_mem_address=vm.mem_alloc(value_address); int new_mem_address=vm.mem_alloc(value_address);
if(elems.find(key)!=elems.end()) if(elems.back().find(key)!=elems.back().end())
{ {
// if this value already exists,delete the old value and update a new value // if this value already exists,delete the old value and update a new value
int old_mem_address=elems[key]; int old_mem_address=elems.back()[key];
vm.mem_free(old_mem_address); vm.mem_free(old_mem_address);
} }
elems[key]=new_mem_address; elems.back()[key]=new_mem_address;
return; return;
} }
int nasal_closure::get_value_address(std::string key) int nasal_closure::get_value_address(std::string key)
{ {
int ret_address=-1; int ret_address=-1;
if(elems.find(key)!=elems.end()) for(std::list<std::map<std::string,int> >::iterator i=elems.begin();i!=elems.end();++i)
ret_address=vm.mem_get(elems[key]); if(i->find(key)!=i->end())
ret_address=vm.mem_get((*i)[key]);
return ret_address; return ret_address;
} }
int nasal_closure::get_mem_address(std::string key) int nasal_closure::get_mem_address(std::string key)
{ {
int ret_address=-1; int ret_address=-1;
if(elems.find(key)!=elems.end()) for(std::list<std::map<std::string,int> >::iterator i=elems.begin();i!=elems.end();++i)
ret_address=elems[key]; if(i->find(key)!=i->end())
ret_address=(*i)[key];
return ret_address; return ret_address;
} }
void nasal_closure::set_closure(nasal_closure& tmp) void nasal_closure::set_closure(nasal_closure& tmp)
{ {
for(std::map<std::string,int>::iterator i=elems.begin();i!=elems.end();++i) for(std::list<std::map<std::string,int> >::iterator i=elems.begin();i!=elems.end();++i)
vm.mem_free(i->second); for(std::map<std::string,int>::iterator j=i->begin();j!=i->end();++j)
vm.mem_free(j->second);
elems.clear(); elems.clear();
for(std::map<std::string,int>::iterator i=tmp.elems.begin();i!=tmp.elems.end();++i) for(std::list<std::map<std::string,int> >::iterator i=tmp.elems.begin();i!=tmp.elems.end();++i)
{ {
int value_addr=vm.mem_get(i->second); std::map<std::string,int> new_scope;
int new_mem_addr=vm.mem_alloc(value_addr); elems.push_back(new_scope);
vm.add_reference(value_addr); for(std::map<std::string,int>::iterator j=i->begin();j!=i->end();++j)
elems[i->first]=new_mem_addr; {
int value_addr=vm.mem_get(j->second);
int new_mem_addr=vm.mem_alloc(value_addr);
vm.add_reference(value_addr);
elems.back()[j->first]=new_mem_addr;
}
} }
return; return;
} }
nasal_runtime.h
+2 -1
View File
@@ -746,6 +746,7 @@ int nasal_runtime::call_function(nasal_ast& node,std::string func_name,int base_
nasal_function& reference_of_func=nasal_vm.gc_get(base_value_addr).get_func(); nasal_function& reference_of_func=nasal_vm.gc_get(base_value_addr).get_func();
int run_closure_addr=reference_of_func.get_closure_addr(); int run_closure_addr=reference_of_func.get_closure_addr();
nasal_closure& run_closure=nasal_vm.gc_get(run_closure_addr).get_closure(); nasal_closure& run_closure=nasal_vm.gc_get(run_closure_addr).get_closure();
run_closure.add_scope();
if(last_call_hash_addr>=0) if(last_call_hash_addr>=0)
{ {
// set hash.me // set hash.me
@@ -908,7 +909,7 @@ int nasal_runtime::call_function(nasal_ast& node,std::string func_name,int base_
} }
} }
block_progress(reference_of_func.get_run_block(),run_closure_addr); block_progress(reference_of_func.get_run_block(),run_closure_addr);
run_closure.del_scope();
if(function_returned_address>=0) if(function_returned_address>=0)
{ {
ret_value_addr=function_returned_address; ret_value_addr=function_returned_address;