Merge pull request #1 from saiteja-talluri/suraj

assignment 5

A4/test

@@ -0,0 +1,114 @@
+testdir="tests"
+
+
+if [ ! -d "$testdir" ]; 
+then
+	echo "No directory named $testdir"
+	exit
+fi
+
+make
+
+nodiff=true
+stopondiff=false
+#ignore these for now
+
+for filename in "$testdir"/*.c; do
+
+	./mysclp -icode "$filename" 2>"$filename.myerr"
+	mv "$filename.spim" "$filename.myspim"
+	mv "$filename.ic" "$filename.myic"
+
+	./sclp -icode "$filename" 2>"$filename.err"
+	DIFF1=$(diff "$filename.spim" "$filename.myspim")
+	DIFF2=$(diff "$filename.err" "$filename.myerr")
+
+	DIFF3=$(diff "$filename.ic" "$filename.myic")
+
+
+
+
+	./mysclp -tokens -ast -symtab -eval "$filename" 2> /dev/null
+	mv "$filename.eval" "$filename.myeval"
+	mv "$filename.ast" "$filename.myast"
+	mv "$filename.sym" "$filename.mysym"
+	mv "$filename.toks" "$filename.mytoks"
+	./sclp -tokens -ast -symtab -eval "$filename" 2> /dev/null
+	DIFF4=$(diff "$filename.ast" "$filename.myast")
+	DIFF5=$(diff "$filename.eval" "$filename.myeval")
+
+	DIFF6=$(diff "$filename.toks" "$filename.mytoks")
+	DIFF7=$(diff "$filename.sym" "$filename.mysym")
+
+	if [ "$DIFF5" != "" ]
+	then
+		echo "eval comparison failed on $filename. Did not run further tests (lexicographic ordering)."
+		echo "Showing diff:"
+		echo "$DIFF5"
+		exit
+	fi
+
+	if [ "$DIFF1" != "" ]
+	then
+		echo "spim code comparison failed on $filename. Continuing further tests."
+		echo "continuing with further tests"
+		echo "Showing diff:"
+		echo "$DIFF1"
+		# exit
+	fi
+
+	if [ "$DIFF2" != "" ]
+	then
+		echo "error message comparison failed on $filename. "
+		echo "Showing diff:"
+		echo "$DIFF2"
+		echo "Continuing with further tests."
+		echo ""
+		echo ""
+		# exit
+	fi	
+
+	# if [ "$DIFF3" != "" ]
+	# then
+	# 	echo "icode comparison failed on $filename. Continuing further tests."
+	# 	echo "Showing diff:"
+	# 	echo "$DIFF3"
+	# 	# exit
+	# fi
+
+
+	if [ "$DIFF4" != "" ]
+	then
+		echo "ast comparison failed on $filename. Continuing further tests."
+		echo "Showing diff:"
+		echo "$DIFF4"
+		# exit
+	fi
+
+
+
+	if [ "$DIFF6" != "" ]
+	then
+		if ! [ -s "$filename.myerr" ] #myerr is empty
+		then
+			echo "tokens comparison failed on $filename even though myerr is empty. Did not run further tests (lexicographic ordering)."
+			exit
+		fi
+		echo "tokens comparison failed on $filename, but myerr is non-empty. Continuing tests"
+		echo ""
+		# echo "Showing diff:"
+		# echo "$DIFF6"
+		# exit
+	fi
+
+	if [ "$DIFF7" != "" ]
+	then
+		echo "symtab comparison failed on $filename. Did not run further tests (lexicographic ordering)."
+		echo "Showing diff:"
+		echo "$DIFF7"
+		exit
+	fi
+
+
+done
+echo "All tests passed!"

A5/Makefile

@@ -0,0 +1,24 @@
+#------------------------------------------------------------------------------
+CPP=g++
+SOURCE=lex.yy.c parser.tab.c ast.cc ast-eval.cc local-environment.cc procedure-eval.cc program-eval.cc ast-compile.cc icode.cc
+MYPROGRAM=sclp
+MYLIBRARY=$(CURDIR)
+LDFLAGS=-Wl,-rpath=$(CURDIR)
+CFLAGS=-std=c++0x
+FLEX=flex
+ALLHEADERS=allheaders.h
+BISON=bison
+#-----------------------------------------------------------------------------
+
+all: $(MYPROGRAM)
+
+$(MYPROGRAM): $(SOURCE)
+	$(CPP) -include $(ALLHEADERS) -L$(MYLIBRARY) $(CFLAGS) $(LDFLAGS) $(SOURCE) -o $(MYPROGRAM) -lsclpshared -lfl -ly
+
+lex.yy.c: scanner.l parser.tab.h
+	$(FLEX) -l --yylineno scanner.l
+parser.tab.c parser.tab.h : parser.y
+	$(BISON) -d  parser.y
+
+clean:
+	rm -f $(MYPROGRAM)

A5/README

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+This directory contains the following files:
+
+- allheaders.h.gch which is a pre-compiled header file.
+- libsclpshared.so which is a shared object file.
+- sclp which is the reference implementation.
+- program-eval.cc, procedure-eval.cc to get the flow of interpreter eval option, use of Symbol Table create 
+  function with local environment.
+- reg-alloc.cc for register allocation scheme
+- Makefile which contains the commands to build your implementation.
+- Besides, the following header files are provided ONLY for telling you the
+  class structure and the member functions whose implementation is provided
+  in the library. YOU DO NOT NEED TO INCLUDE ANY OF THESE FILES IN YOUR IMPLEMENTATION.
+  . storetokens.hh contains the declaration of the function which you can call to 
+    store tokens and print them.
+  . ast.hh
+  . procedure.hh
+  . program.hh
+  . symbol-table.hh
+  . local-environment.hh
+  . reg-alloc.hh
+  . icode.hh
+You need to write 
+   - a scanner, 
+   - a parser, 
+   - actions within the scanner and parser to construct Abstract Syntax Trees, 
+   - ast functions, and
+   - an interperter 
+   - a compiler which generates spim code
+   for the input program. 
+
+   You need to understand the local environment used for evaluation.
+
+   A high level description of the classes can be found on the sclp web page 
+   https://www.cse.iitb.ac.in/~uday/web-source/.
+   You need to create the top level object for program. 
+
+You should work in the following steps:
+
+  1. Enhance your implementation of A4 by adding new rules in the scanner and parser for print operator (syntax: print var)
+  2. Add code to construct the ASTs for the new constructs.
+  3. Add code to generate spim code from ASTs. 
+
+For ease of working on small programs, you can use the -d option to produce the dump on the screen 
+instead of having to open the dump files.
+
+For the AST you need to create objects of the following classes:
+
+	- Assignment_Ast, 
+	- Name_Ast, 
+	- Number_Ast, 
+	- Arithmetic_Expr_Ast (and its derived classes)
+	- Selection_Statement_Ast
+	- Relational_Expr_Ast
+	- Logical_Expr_Ast
+	- COnditional_Op_Ast
+	- Iterative_Statement_Ast
+        - Sequence_Statement_Ast
+        - Print_Ast
+
+You will need to submit ONLY the scanner.l, parser.y, ast.cc, local-environment.cc, ast-eval.cc, ast-compile.cc, and icode.cc files.