From 563a807be78bfe12e5bfbb9ff0d6da44242696c4 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 2 Dec 2010 06:16:29 +0000
Subject: Represent code as list structure (i.e. traditional LISP lists built
 from pairs), rather than tuple structure. Remove unused/crufty depoly stage.
 Remove cps from AST interface (but keep cps.cpp code around for later).
 Improved command line interface for compilation stages (options -T -L -S).

git-svn-id: http://svn.drobilla.net/resp/resp@277 ad02d1e2-f140-0410-9f75-f8b11f17cedd
---
 src/repl.cpp | 63 ++++++++++++++++++------------------------------------------
 1 file changed, 19 insertions(+), 44 deletions(-)

(limited to 'src/repl.cpp')

diff --git a/src/repl.cpp b/src/repl.cpp
index c2a50f5..d0a251b 100644
--- a/src/repl.cpp
+++ b/src/repl.cpp
@@ -35,7 +35,7 @@ readParseType(CEnv& cenv, Cursor& cursor, istream& is, AST*& exp, AST*& ast)
 		is.ignore(std::numeric_limits<std::streamsize>::max(), '\n'); // Skip REPL junk
 		throw e;
 	}
-	
+
 	if (exp->to<ATuple*>() && exp->to<ATuple*>()->empty())
 		return false;
 
@@ -87,39 +87,16 @@ eval(CEnv& cenv, Cursor& cursor, istream& is, bool execute)
 	try {
 		while (readParseType(cenv, cursor, is, exp, ast))
 			parsed.push_back(ast);
-
 		
 		if (cenv.args.find("-T") != cenv.args.end()) {
 			for (list<AST*>::const_iterator i = parsed.begin(); i != parsed.end(); ++i)
-				pprint(cout, (*i), &cenv, true);
+				pprint(cout, *i, &cenv, true);
 			return 0;
 		}
 
 		CVal  val = NULL;
 		CFunc f   = NULL;
 
-		/*
-		// De-poly all expressions
-		Code concrete;
-		for (list<AST*>::iterator i = parsed.begin(); i != parsed.end(); ++i) {
-			AST* c = (*i)->depoly(cenv, concrete);
-			if (c)
-				concrete.push_back(c);
-		}
-
-		if (cenv.args.find("-d") != cenv.args.end()) {
-			cout << endl << ";;;; CONCRETE {" << endl << endl;
-			for (Code::iterator i = concrete.begin(); i != concrete.end(); ++i) {
-				cout << *i << endl;
-				ADef* def = (*i)->to<ADef*>();
-				if (def)
-					std::cout << " :: " << cenv.type(def->body()) << std::endl;
-				cout << endl;
-			}
-			cout << ";;;; } CONCRETE" << endl << endl;
-		}
-		*/
-
 		// Lift all expressions
 		Code lifted;
 		for (list<AST*>::iterator i = parsed.begin(); i != parsed.end(); ++i) {
@@ -128,32 +105,29 @@ eval(CEnv& cenv, Cursor& cursor, istream& is, bool execute)
 				lifted.push_back(l);
 		}
 
-		if (cenv.args.find("-d") != cenv.args.end()) {
-			cout << endl << ";;;; LIFTED {" << endl << endl;
-			for (Code::iterator i = lifted.begin(); i != lifted.end(); ++i) {
-				cout << *i << endl;
-				ADef* def = (*i)->to<ADef*>();
-				if (def)
-					std::cout << " :: " << cenv.type(def->body()) << std::endl;
-				cout << endl;
-			}
-			cout << ";;;; } LIFTED" << endl << endl;
+		if (cenv.args.find("-L") != cenv.args.end()) {
+			for (Code::const_iterator i = lifted.begin(); i != lifted.end(); ++i)
+				pprint(cout, *i, &cenv, true);
+			return 0;
 		}
 
 		// Compile top-level (lifted) functions
 		Code exprs;
-		for (Code::iterator i = lifted.begin(); i != lifted.end(); ++i) {
-			ADef* def = (*i)->to<ADef*>();
-			if (def && (*(def->begin() + 2))->to<AFn*>()) {
+		for (Code::const_iterator i = lifted.begin(); i != lifted.end(); ++i) {
+			const ADef* def = (*i)->to<const ADef*>();
+			if (def && def->list_ref(2)->to<const AFn*>()) {
 				val = def->compile(cenv);
 			} else {
-				exprs.push_back(*i);
+				assert(*i);
+				ATuple* tup = (*i)->to<ATuple*>();
+				if (!tup || (tup->tup_len() > 0))
+					exprs.push_back(*i);
 			}
 		}
 
 		const AType* type = cenv.type(exprs.back());
 		const AType* fnT  = tup<const AType>(cursor, cenv.tenv.Fn, new AType(cursor), type, 0);
-		
+
 		// Create function for top-level of program
 		f = cenv.engine()->startFunction(cenv, "main", new ATuple(cursor), fnT);
 		
@@ -164,12 +138,13 @@ eval(CEnv& cenv, Cursor& cursor, istream& is, bool execute)
 		// Finish compilation
 		cenv.engine()->finishFunction(cenv, f, val);
 
-		if (cenv.args.find("-d") != cenv.args.end())
+		if (cenv.args.find("-S") != cenv.args.end()) {
 			cenv.engine()->writeModule(cenv, cenv.out);
+			return 0;
+		}
 		
-		// Call and print ast
-		if (cenv.args.find("-S") == cenv.args.end())
-			callPrintCollect(cenv, f, ast, type, execute);
+		// Call and print result
+		callPrintCollect(cenv, f, ast, type, execute);
 
 	} catch (Error& e) {
 		cenv.err << e.what() << endl;
-- 
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