xxq250/Nasal-Interpreter
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add static symbol check & test file update

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Valk Richard Li
2021-03-30 15:55:38 +08:00
parent 4202c2081e
commit 7f191f353e
14 changed files with 158 additions and 260 deletions
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36
main.cpp
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@@ -10,15 +10,15 @@ nasal_vm vm;
void help()
{
std::cout
<<">> [\"file\"] input a file name. \n"
<<">> [help ] show help. \n"
<<">> [clear ] clear the screen. \n"
<<">> [lex ] use lexer to turn code into tokens. \n"
<<">> [ast ] do parsing and check the abstract syntax tree.\n"
<<">> [code ] show byte code. \n"
<<">> [exec ] execute program on bytecode vm. \n"
<<">> [logo ] print logo of nasal . \n"
<<">> [exit ] quit nasal interpreter. \n";
<<">> [\"file\"] input file name. \n"
<<">> [help ] show help. \n"
<<">> [clear ] clear the screen. \n"
<<">> [lex ] view tokens. \n"
<<">> [ast ] view abstract syntax tree. \n"
<<">> [code ] view byte code. \n"
<<">> [exec ] execute program on bytecode vm. \n"
<<">> [logo ] print logo of nasal . \n"
<<">> [exit ] quit nasal interpreter. \n";
return;
}
@@ -39,16 +39,6 @@ void die(std::string stage,std::string filename)
return;
}
void clear()
{
// this will clear the data in lexer/parser/import modules
// to reduce memory footprint
lexer.get_token_list().clear();
parse.get_root().clear();
import.get_root().clear();
return;
}
void execute(std::string& command)
{
lexer.openfile(file);
@@ -61,7 +51,6 @@ void execute(std::string& command)
if(command=="lex")
{
lexer.print_token();
clear();
return;
}
parse.set_toklist(lexer.get_token_list());
@@ -74,7 +63,6 @@ void execute(std::string& command)
if(command=="ast")
{
parse.get_root().print_ast(0);
clear();
return;
}
import.link(parse.get_root());
@@ -84,7 +72,11 @@ void execute(std::string& command)
return;
}
codegen.main_progress(import.get_root());
clear();
if(codegen.get_error())
{
die("codegen",file);
return;
}
if(command=="code")
{
codegen.print_byte_code();