# This is the name of your program.  The class dictionary file should
# be $(PROG).cd, and the behavior file should be $(PROG).beh.
PROG = program

# This is the name of the class which has the "main" method.
MAIN = Main

# This is the directory into which .java files are generated.
GENDIR = ./gen

# This is the directory into which .class files are generated.
CLASSDIR = ./gen

# This is the package your generated code belongs to.  It should match
# the package specified at the beginning of your .cd file.
PACKAGE =

# Arguments for testing the program.
TEST_ARGS = < $(PROG).input
# Files the program test depends on.  Probably some subset of $(TEST_ARGS).
TEST_DEPS = $(PROG).input

# Make sure these are all in your $PATH:
#  interpreter
JAVA = java
#  compiler
JAVAC = CLASSPATH=$(CLASSDIR):$$CLASSPATH javac -d $(CLASSDIR)
#  Demeter compiler
DEMJAVA = demjava
#  parser generator
PARSEGEN = jack

####
# You shouldn't have to change anything below here.
####

ifeq (,$(PACKAGE))
PACKAGE_PREFIX =
PACKAGE_DIR = $(CLASSDIR)
else
PACKAGE_PREFIX = $(PACKAGE).
PACKAGE_DIR = $(CLASSDIR)/$(subst .,/,$(PACKAGE))
endif

MAIN_TARGET = $(PACKAGE_DIR)/$(MAIN).class
SRC = $(GENDIR)/*.java
GRAMMAR = $(PROG).jack
PARSER = Parser.java

all: $(MAIN_TARGET)

$(MAIN_TARGET): $(GENDIR)/code $(GENDIR)/grammar $(GENDIR)/$(PARSER)
	@$(MAKE) --no-print-directory $(GENDIR)/compile
	@touch $(MAIN_TARGET)

$(GENDIR)/code: $(PROG).cd $(PROG).beh
	@mkdir -p $(GENDIR)
	$(DEMJAVA) -code -outputdir $(GENDIR) $(PROG)
	@touch $@

$(GENDIR)/grammar: $(PROG).cd
	@mkdir -p $(GENDIR)
	$(DEMJAVA) -grammar -outputdir $(GENDIR) $(PROG)
	@touch $@

$(GENDIR)/$(PARSER): $(GENDIR)/$(GRAMMAR)
	(cd $(GENDIR); $(PARSEGEN) $(GRAMMAR))

$(GENDIR)/compile: $(SRC)
	@mkdir -p $(CLASSDIR)
	$(JAVAC) $?
	@touch $@

$(SRC):

test: all $(TEST_DEPS)
	CLASSPATH=$(CLASSDIR):$$CLASSPATH $(JAVA) $(PACKAGE_PREFIX)$(MAIN) $(TEST_ARGS)

clean:
	$(RM) -r $(GENDIR)
	$(RM) *~ core

new: clean all

.PHONY: all test clean new