Code generator is mostly complete, major parts missing are function c…

…alls and strings,

but it successfully compiles and runs the 'artisanal-titan' examples, collected under
'examples/artisanal.titan'. Included patched Lua from 'artisanal-titan' to run the
examples, but it is better if we tweak the build process to run with stock Lua.

examples/artisanal.titan

@@ -0,0 +1,69 @@
+-- Add two numbers
+
+function foo(x: integer, y: integer): integer
+    return x + y
+end
+
+function filltable(N: integer): { integer }
+    local xs: { integer } = {}
+    for i: integer = 1,N do
+        xs[i] = 10*i
+    end
+    return xs
+end
+
+
+function sieve(N: integer): {integer}
+
+    local is_prime: {boolean} = {}
+    is_prime[1] = false
+    for n: integer=2,N do
+        is_prime[n] = true
+    end
+
+    local nprimes: integer = 0
+    local primes: {integer} = {}
+
+    for n: integer=1,N do
+        if is_prime[n] then
+            nprimes = nprimes + 1;
+            primes[nprimes] = n
+            for m:integer = n+n, N, n do
+                is_prime[m] = false
+            end
+        end
+    end
+
+    return primes
+end
+
+
+function sort(xs: {integer}): nil
+    local N: integer = #xs
+    for i: integer=1,N do
+
+        -- Find minimum
+        local min_i: integer = i
+        local min_x: integer = xs[i]
+        for j: integer = i+1, N do
+            local y: integer = xs[j]
+            if y < min_x then
+                min_i = j
+                min_x = y
+            end
+        end
+
+        -- Move it to the front
+        local tmp: integer = xs[i]
+        xs[i] = xs[min_i]
+        xs[min_i] = tmp
+    end
+end
+
+function sum(N: integer): integer
+    local res = 0
+    for i: integer=1,N do
+        res = res + i
+    end
+    return res
+end

examples/test_fill_table.lua

@@ -0,0 +1,9 @@
+local mod = require "artisanal"
+
+local f = mod.filltable
+
+local N    = arg[1] and tonumber(arg[1]) or 1000
+
+print("N="..N)
+local r = f(N)
+print(type(r))

examples/test_selection_sort.lua

@@ -0,0 +1,29 @@
+local N    = arg[1] and tonumber(arg[1]) or 5000
+
+local sort = require("artisanal").sort
+
+local function make_input(N)
+    local xs = {}
+    for i=1,N do
+        xs[i] = N - i + 1
+    end
+    return xs
+end
+
+local function print_array(xs)
+    print( "{" .. table.concat(xs, ", ") .. "}" )
+end
+
+local function is_sorted(xs)
+    for i=2,#xs do
+        if xs[i-1] > xs[i] then
+            return false
+        end
+    end
+    return true
+end
+
+local xs = make_input(N)
+print('before', is_sorted(xs))
+sort(xs)
+print('after', is_sorted(xs))

examples/test_sieve.lua

@@ -0,0 +1,6 @@
+local N    = arg[1] and tonumber(arg[1]) or 100
+
+local f = require("artisanal").sieve
+
+local ps = f(N)
+print(#ps)

examples/test_sum_1_N.lua

@@ -0,0 +1,8 @@
+local N    = arg[1] and tonumber(arg[1]) or 500000000
+
+local f = require("artisanal").sum
+
+print("N="..N)
+local r = f(N)
+print(r)
+

lua/Makefile

@@ -0,0 +1,114 @@
+# Makefile for installing Lua
+# See doc/readme.html for installation and customization instructions.
+
+# == CHANGE THE SETTINGS BELOW TO SUIT YOUR ENVIRONMENT =======================
+
+# Your platform. See PLATS for possible values.
+PLAT= none
+
+# Where to install. The installation starts in the src and doc directories,
+# so take care if INSTALL_TOP is not an absolute path. See the local target.
+# You may want to make INSTALL_LMOD and INSTALL_CMOD consistent with
+# LUA_ROOT, LUA_LDIR, and LUA_CDIR in luaconf.h.
+INSTALL_TOP= /usr/local
+INSTALL_BIN= $(INSTALL_TOP)/bin
+INSTALL_INC= $(INSTALL_TOP)/include
+INSTALL_LIB= $(INSTALL_TOP)/lib
+INSTALL_MAN= $(INSTALL_TOP)/man/man1
+INSTALL_LMOD= $(INSTALL_TOP)/share/lua/$V
+INSTALL_CMOD= $(INSTALL_TOP)/lib/lua/$V
+
+# How to install. If your install program does not support "-p", then
+# you may have to run ranlib on the installed liblua.a.
+INSTALL= install -p
+INSTALL_EXEC= $(INSTALL) -m 0755
+INSTALL_DATA= $(INSTALL) -m 0644
+#
+# If you don't have "install" you can use "cp" instead.
+# INSTALL= cp -p
+# INSTALL_EXEC= $(INSTALL)
+# INSTALL_DATA= $(INSTALL)
+
+# Other utilities.
+MKDIR= mkdir -p
+RM= rm -f
+
+# == END OF USER SETTINGS -- NO NEED TO CHANGE ANYTHING BELOW THIS LINE =======
+
+# Convenience platforms targets.
+PLATS= aix bsd c89 freebsd generic linux macosx mingw posix solaris
+
+# What to install.
+TO_BIN= lua luac
+TO_INC= lua.h luaconf.h lualib.h lauxlib.h lua.hpp
+TO_LIB= liblua.a
+TO_MAN= lua.1 luac.1
+
+# Lua version and release.
+V= 5.3
+R= $V.4
+
+# Targets start here.
+all:	$(PLAT)
+
+$(PLATS) clean:
+	cd src && $(MAKE) $@
+
+test:	dummy
+	src/lua -v
+
+install: dummy
+	cd src && $(MKDIR) $(INSTALL_BIN) $(INSTALL_INC) $(INSTALL_LIB) $(INSTALL_MAN) $(INSTALL_LMOD) $(INSTALL_CMOD)
+	cd src && $(INSTALL_EXEC) $(TO_BIN) $(INSTALL_BIN)
+	cd src && $(INSTALL_DATA) $(TO_INC) $(INSTALL_INC)
+	cd src && $(INSTALL_DATA) $(TO_LIB) $(INSTALL_LIB)
+	cd doc && $(INSTALL_DATA) $(TO_MAN) $(INSTALL_MAN)
+
+uninstall:
+	cd src && cd $(INSTALL_BIN) && $(RM) $(TO_BIN)
+	cd src && cd $(INSTALL_INC) && $(RM) $(TO_INC)
+	cd src && cd $(INSTALL_LIB) && $(RM) $(TO_LIB)
+	cd doc && cd $(INSTALL_MAN) && $(RM) $(TO_MAN)
+
+local:
+	$(MAKE) install INSTALL_TOP=../install
+
+none:
+	@echo "Please do 'make PLATFORM' where PLATFORM is one of these:"
+	@echo "   $(PLATS)"
+	@echo "See doc/readme.html for complete instructions."
+
+# make may get confused with test/ and install/
+dummy:
+
+# echo config parameters
+echo:
+	@cd src && $(MAKE) -s echo
+	@echo "PLAT= $(PLAT)"
+	@echo "V= $V"
+	@echo "R= $R"
+	@echo "TO_BIN= $(TO_BIN)"
+	@echo "TO_INC= $(TO_INC)"
+	@echo "TO_LIB= $(TO_LIB)"
+	@echo "TO_MAN= $(TO_MAN)"
+	@echo "INSTALL_TOP= $(INSTALL_TOP)"
+	@echo "INSTALL_BIN= $(INSTALL_BIN)"
+	@echo "INSTALL_INC= $(INSTALL_INC)"
+	@echo "INSTALL_LIB= $(INSTALL_LIB)"
+	@echo "INSTALL_MAN= $(INSTALL_MAN)"
+	@echo "INSTALL_LMOD= $(INSTALL_LMOD)"
+	@echo "INSTALL_CMOD= $(INSTALL_CMOD)"
+	@echo "INSTALL_EXEC= $(INSTALL_EXEC)"
+	@echo "INSTALL_DATA= $(INSTALL_DATA)"
+
+# echo pkg-config data
+pc:
+	@echo "version=$R"
+	@echo "prefix=$(INSTALL_TOP)"
+	@echo "libdir=$(INSTALL_LIB)"
+	@echo "includedir=$(INSTALL_INC)"
+
+# list targets that do not create files (but not all makes understand .PHONY)
+.PHONY: all $(PLATS) clean test install local none dummy echo pecho lecho
+
+# (end of Makefile)

lua/README

@@ -0,0 +1,6 @@
+
+This is Lua 5.3.4, released on 12 Jan 2017.
+
+For installation instructions, license details, and
+further information about Lua, see doc/readme.html.
+