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lexer,parser,import,codegen use the same error module.

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ValKmjolnir
2021-12-23 21:15:50 +08:00
parent 30650bb64f
commit f0ae63bce5
11 changed files with 160 additions and 136 deletions
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nasal_import.h
+5 -23
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@@ -4,26 +4,19 @@
class nasal_import
{
private:
uint32_t error;
nasal_err& nerr;
std::vector<std::string> files;
void die(const std::string&,const char*);
bool check_import(const nasal_ast&);
bool check_exist(const std::string&);
void linker(nasal_ast&,nasal_ast&&);
nasal_ast file_import(nasal_ast&);
nasal_ast load(nasal_ast&,uint16_t);
public:
uint32_t err(){return error;}
void link(nasal_parse&,const std::string&);
nasal_import(nasal_err& e):nerr(e){}
void link(nasal_parse&,const std::string&);
const std::vector<std::string>& get_file() const {return files;}
};
void nasal_import::die(const std::string& file,const char* stage)
{
++error;
std::cout<<"[import] in <\""<<file<<"\">: error(s) occurred in "<<stage<<".\n";
}
bool nasal_import::check_import(const nasal_ast& node)
{
/*
@@ -65,8 +58,8 @@ void nasal_import::linker(nasal_ast& root,nasal_ast&& add_root)
nasal_ast nasal_import::file_import(nasal_ast& node)
{
nasal_lexer lex;
nasal_parse par;
nasal_lexer lex(nerr);
nasal_parse par(nerr);
// get filename and set node to ast_null
std::string filename=node[1][0].str();
node.clear();
@@ -77,17 +70,7 @@ nasal_ast nasal_import::file_import(nasal_ast& node)
// start importing...
lex.scan(filename);
if(lex.err())
{
die(filename,"lexer");
return {0,ast_root};
}
par.compile(lex);
if(par.err())
{
die(filename,"parser");
return {0,ast_root};
}
nasal_ast tmp=std::move(par.ast());
// check if tmp has 'import'
return load(tmp,files.size()-1);
@@ -110,7 +93,6 @@ nasal_ast nasal_import::load(nasal_ast& root,uint16_t fileindex)
void nasal_import::link(nasal_parse& parse,const std::string& self)
{
// initializing
error=0;
files={self};
// scan root and import files,then generate a new ast and return to import_ast
// the main file's index is 0