bug fix

README.md

@@ -1,6 +1,6 @@
-# AQuery Compiler
+# AQuery++
 
-AQuery Compiler that compiles AQuery into C++11.
+AQuery++ Compiler that compiles AQuery into C++11.
 Frontend built on top of [mo-sql-parsing](https://github.com/klahnakoski/mo-sql-parsing).
 
 ## Roadmap

engine/ast.py

@@ -111,9 +111,6 @@ class TableInfo:
         self.columns_byname[c['name']] = col_object
         self.columns.append(col_object)
         
-    def construct(self):
-        for c in self.columns:
-            self.cxt.emit(f'{c.cname}:()')
     @property
     def n_cols(self):
         return len(self.columns)

engine/scan.py

@@ -48,6 +48,7 @@ class filter(ast_node):
         
     def spawn(self, node):
         # TODO: deal with subqueries
+        self.modified_node = node
         return super().spawn(node)
     def __materialize__(self):
         if self.materialize:
@@ -66,72 +67,6 @@ class filter(ast_node):
                 
     def consume(self, node):
         # TODO: optimizations after converting expr to cnf
-        if type(node) is bool and node and self.materialize:
-            self.output = self.context.datasource if node else None
-            self.value = '1' if node else '0'
-        else:
-            if type(node) is dict:
-                def short_circuit(op, idx, inv = True):
-                    v = filter(self, node[op][idx]).value
-                    inv_filter = lambda x: not x if inv else x
-                    if type(v) is bool and inv_filter(v):
-                        self.value = inv_filter(v)
-                        self.__materialize__()
-                        return None
-                    return v
-                def binary(l, r, _ty = '&'):
-                    if type(l) is bool:
-                        self.value = r
-                    elif type(r) is bool:
-                        self.value = l
-                    elif type(l) is View:
-                        if type(r) is View:
-                            self.emit(f"{l.name}: {l.name} {_ty} {r.name if type(r) is View else f'({r})'}")
-                            self.value = l
-                    elif type(l) is str:
-                        if type(r) is str:
-                            self.value = f'({l}){_ty}({r})'
-                        else:
-                            self.emit(f'{r.name}:{r.name} {_ty} ({l})')
-                            self.value = r
-                if 'and' in node:
-                    l = short_circuit('and', 0)
-                    if l is not None:
-                        r = short_circuit('and', 1)
-                        if r is not None:                
-                            binary(l, r)
-                    
-                elif 'or' in node:
-                    l = short_circuit('or', 0, False)
-                    if l is not None:
-                        r = short_circuit('or', 1, False)
-                        if r is not None:                
-                            binary(l, r, '|')
-                    
-                elif 'not' in node:
-                    v = filter(self, node['not']).value
-                    if type(v) is bool:
-                        self.value = not v
-                        self.__materialize__()
-                    elif type(v) is View:
-                        if len(v.table.columns) > 0:
-                            all_rows = View(self.context, v.table)
-                            self.emit(f'{all_rows.name}:(#{v.table.columns[0].cname})#1')
-                            self.emit(f'{v.name}:{all_rows.name}-{v.name}')
-                            self.value = v
-                    else:
-                        self.value = '~(' + v + ')'
-                    # TODO: arithmetic ops connecting logical ops.
-                else:
-                    e = expr(self, node)
-                    if e.isvector:
-                        v = View(self.context, self.datasource)
-                        v.construct()
-                        self.emit(f'{v.name}:{e.cexpr}')
-                        self.value = v
-                    else:
-                        self.value = e.cexpr
-            self.__materialize__()        
-
+        self.expr = expr(self, self.modified_node)
         print(node)
     

out.cpp

@@ -1,5 +1,5 @@
-#include "./server/libaquery.h"
 #include "./server/aggregations.h"
+#include "./server/libaquery.h"
 
     extern "C" int __DLLEXPORT__ dllmain(Context* cxt) { 
         using namespace std;
@@ -42,19 +42,19 @@ stocks_timestamp.emplace_back(15);
 stocks_price.emplace_back(2);
 stocks_timestamp.emplace_back(16);
 stocks_price.emplace_back(5);
-auto out_6gPn = new TableInfo<decays<decltype(max((stocks_price[0]-min(stocks_timestamp[0]))))>>("out_6gPn", 1);
-cxt->tables.insert({"out_6gPn", out_6gPn});
-auto& out_6gPn_maxstockspriceminstockstimestamp = *(ColRef<decays<decltype(max((stocks_price[0]-min(stocks_timestamp[0]))))>> *)(&out_6gPn->colrefs[0]);
-out_6gPn_maxstockspriceminstockstimestamp.init();
-out_6gPn_maxstockspriceminstockstimestamp = max((stocks_price-min(stocks_timestamp)));
-print(*out_6gPn);
+auto out_ZPYh = new TableInfo<decays<decltype(max((stocks_price[0]-min(stocks_timestamp[0]))))>>("out_ZPYh", 1);
+cxt->tables.insert({"out_ZPYh", out_ZPYh});
+auto& out_ZPYh_maxstockspriceminstockstimestamp = *(ColRef<decays<decltype(max((stocks_price[0]-min(stocks_timestamp[0]))))>> *)(&out_ZPYh->colrefs[0]);
+out_ZPYh_maxstockspriceminstockstimestamp.init();
+out_ZPYh_maxstockspriceminstockstimestamp = max((stocks_price-min(stocks_timestamp)));
+print(*out_ZPYh);
 
-auto out_7a2d = new TableInfo<decays<decltype(max((stocks_price[0]-mins(stocks_price[0]))))>>("out_7a2d", 1);
-cxt->tables.insert({"out_7a2d", out_7a2d});
-auto& out_7a2d_maxstockspriceminsstocksprice = *(ColRef<decays<decltype(max((stocks_price[0]-mins(stocks_price[0]))))>> *)(&out_7a2d->colrefs[0]);
-out_7a2d_maxstockspriceminsstocksprice.init();
-out_7a2d_maxstockspriceminsstocksprice = max((stocks_price-mins(stocks_price)));
-print(*out_7a2d);
+auto out_1ac3 = new TableInfo<decays<decltype(max((stocks_price[0]-mins(stocks_price[0]))))>>("out_1ac3", 1);
+cxt->tables.insert({"out_1ac3", out_1ac3});
+auto& out_1ac3_maxstockspriceminsstocksprice = *(ColRef<decays<decltype(max((stocks_price[0]-mins(stocks_price[0]))))>> *)(&out_1ac3->colrefs[0]);
+out_1ac3_maxstockspriceminsstocksprice.init();
+out_1ac3_maxstockspriceminsstocksprice = max((stocks_price-mins(stocks_price)));
+print(*out_1ac3);
 
 return 0;
 }

prompt.py

@@ -16,13 +16,22 @@ except Exception as e:
 
 subprocess.call(['make', 'server.bin'])
 cleanup = True
+
 def rm():
+    global cleanup
     if cleanup:
         mm.seek(0,os.SEEK_SET)
         mm.write(b'\x00\x00')
         mm.flush()
-        time.sleep(.001)
-        server.kill()
+    
+        try:
+            time.sleep(.001)
+            server.kill()
+            time.sleep(.001)
+            server.terminate()
+        except OSError:
+            pass
+    
         files = os.listdir('.')
         for f in files:
             if f.endswith('.shm'):
@@ -30,14 +39,6 @@ def rm():
         mm.close()
         cleanup = False
    
-def proc_alive(pid):
-    try:
-        os.kill(pid, 0)
-    except OSError:
-        return False
-    else:
-        return True
-    
 atexit.register(rm)
     
 shm = base62uuid()
@@ -72,7 +73,6 @@ res = parser.parse(q)
 
 print(res)
 
-
 # else:f
 #     if subprocess.call(['make', 'snippet']) == 0:
 #         mm.seek(0)
@@ -89,7 +89,7 @@ keep = False
 cxt = None
 while test_parser:
     try:
-        if not proc_alive(server.pid):
+        if server.poll() is not None:
             server = subprocess.Popen(["./server.bin", shm])
         q = input()
         if q == 'exec':

server/server.cpp

@@ -53,7 +53,7 @@ int main(int argc, char** argv) {
     printf("running: %s\n", running? "true":"false");
     printf("ready: %s\n", ready? "true":"false");
     while (running) {
-        std::this_thread::sleep_for(100us);
+        std::this_thread::sleep_for(1ms);
         if(ready){
             printf("running: %s\n", running? "true":"false");
             printf("ready: %s\n", ready? "true":"false");