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Switched "as_lua_id" to not add an underscore by default, and just add

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it manually to variables and A_ as a prefix to actions. Now, by default,
classes and method calls don't use the A_ prefix, which means nomsu can
more easily play nice with regular Lua objects.
This commit is contained in:
Bruce Hill 2018-08-29 14:19:16 -07:00
parent 436982c6ba
commit e64632be1a
4 changed files with 35 additions and 31 deletions
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12
core/metaprogramming.nom
View File

@ -94,13 +94,13 @@ test:
assume ((foo 1) == "outer")
compile [local action %actions %body] to:
lua> ".."
local fn_name = "A"..string.as_lua_id(\%actions[1].stub)
local fn_name = "A_"..string.as_lua_id(\%actions[1].stub)
local \%args = table.map(\%actions[1]:get_args(), function(a) return tostring(nomsu:compile(a)) end)
local lua = LuaCode(tree.source, fn_name, " = ", \(compile as (%args -> %body)))
lua:add_free_vars({fn_name})
for i=2,#\%actions do
local alias = \%actions[i]
local alias_name = "A"..string.as_lua_id(alias.stub)
local alias_name = "A_"..string.as_lua_id(alias.stub)
lua:add_free_vars({alias_name})
local \%alias_args = table.map(alias:get_args(), function(a) return tostring(nomsu:compile(a)) end)
lua:append("\\n", alias_name, " = ")
@ -125,7 +125,7 @@ test:
compile [action %actions %body] to (..)
lua> ".."
local lua = \(compile as (local action %actions %body))
lua:remove_free_vars(table.map(\%actions, function(a) return "A"..string.as_lua_id(a.stub) end))
lua:remove_free_vars(table.map(\%actions, function(a) return "A_"..string.as_lua_id(a.stub) end))
return lua
test:
@ -209,7 +209,7 @@ compile [%tree as lua return] to (..)
Lua value "nomsu:compile(\(%tree as lua expr)):as_statements('return ')"
compile [remove action %action] to (..)
Lua "A\(=lua "string.as_lua_id(\(%action.stub))") = nil"
Lua "A_\(=lua "string.as_lua_id(\(%action.stub))") = nil"
test:
assume ("\(\(foo \%x) as nomsu)" == "foo %x") or barf ".."
@ -223,8 +223,8 @@ compile [%tree as inline nomsu] to (..)
action [%var as lua identifier, %var as lua id] (..)
lua> ".."
if type(\%var) == 'string' then return string.as_lua_id(\%var)
elseif \%var.type == 'Var' then return string.as_lua_id(\%var[1])
elseif \%var.type == 'Action' then return "A"..string.as_lua_id(\%var.stub)
elseif \%var.type == 'Var' then return "_"..string.as_lua_id(\%var[1])
elseif \%var.type == 'Action' then return "A_"..string.as_lua_id(\%var.stub)
end
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

16
lib/object.nom
View File

@ -44,7 +44,7 @@ test:
assume ((%d::bark) == "Bark! Bark!")
compile [my action %actions %body] to:
lua> ".."
local fn_name = "A"..string.as_lua_id(\%actions[1].stub)
local fn_name = string.as_lua_id(\%actions[1].stub)
local \%args = table.map(\%actions[1]:get_args(), function(a) return tostring(nomsu:compile(a)) end)
table.insert(\%args, \(\%me as lua id))
local lua = LuaCode(tree.source, "class.", fn_name, " = ", \(..)
@ -52,7 +52,7 @@ compile [my action %actions %body] to:
..)
for i=2,#\%actions do
local alias = \%actions[i]
local alias_name = "A"..string.as_lua_id(alias.stub)
local alias_name = string.as_lua_id(alias.stub)
local \%alias_args = table.map(alias:get_args(), function(a) return tostring(nomsu:compile(a)) end)
table.insert(\%alias_args, \(\%me as lua id))
lua:append("\\nclass.", alias_name, " = ")
@ -78,15 +78,15 @@ compile [object %classname extends %parent %class_body] to:
__tostring=function(cls) return cls.name end,
__call=function(cls, inst)
inst = setmetatable(inst or {}, cls)
if inst.A_set_up then
inst:A_set_up()
if inst.set_up then
inst:set_up()
end
return inst
end,
})
nomsu["A"..string.as_lua_id("new "..class.name)] = class
nomsu["A"..string.as_lua_id("new "..class.name.." 1")] = class
nomsu["A"..string.as_lua_id(class.name)] = function() return class end
nomsu["A_"..string.as_lua_id("new "..class.name)] = class
nomsu["A_"..string.as_lua_id("new "..class.name.." 1")] = class
nomsu["A_"..string.as_lua_id(class.name)] = function() return class end
class.__index = class
class.class = class
class.__tostring = function(inst)
@ -104,7 +104,7 @@ compile [object %classname extends %parent %class_body] to:
["__ipairs"]="__ipairs", ["__pairs"]="__pairs",
}
for stub,metamethod in pairs(metamethod_map) do
class[metamethod] = class["A"..string.as_lua_id(stub)]
class[metamethod] = class[string.as_lua_id(stub)]
end
end

20
nomsu_compiler.lua
View File

@ -40,7 +40,7 @@ string.as_lua_id = function(str)
return format("x%02X", byte(c))
end
end)
return '_' .. str
return str
end
table.map = function(self, fn)
local _accum_0 = { }
@ -540,10 +540,10 @@ do
NomsuCompiler.compile = function(self, tree)
if tree.version then
do
local get_version = self['A' .. string.as_lua_id("Nomsu version")]
local get_version = self['A_' .. string.as_lua_id("Nomsu version")]
if get_version then
do
local upgrade = self['A' .. string.as_lua_id("1 upgraded from 2 to 3")]
local upgrade = self['A_' .. string.as_lua_id("1 upgraded from 2 to 3")]
if upgrade then
tree = upgrade(tree, tree.version, get_version())
end
@ -577,7 +577,13 @@ do
return ret
end
end
local lua = LuaCode.Value(tree.source, "A", string.as_lua_id(stub), "(")
local lua = LuaCode.Value(tree.source)
if tree.target then
lua:append(self:compile(tree.target), ":")
else
lua:append("A_")
end
lua:append(string.as_lua_id(stub), "(")
local args = { }
for i, tok in ipairs(tree) do
local _continue_0 = false
@ -603,10 +609,6 @@ do
end
lua:concat_append(args, ", ")
lua:append(")")
if tree.target then
local target_lua = self:compile(tree.target)
lua:prepend(target_lua, ":")
end
return lua
elseif "EscapedNomsu" == _exp_0 then
local lua = LuaCode.Value(tree.source, tree[1].type, "{")
@ -769,7 +771,7 @@ do
elseif "Number" == _exp_0 then
return LuaCode.Value(tree.source, tostring(tree[1]))
elseif "Var" == _exp_0 then
return LuaCode.Value(tree.source, string.as_lua_id(tree[1]))
return LuaCode.Value(tree.source, "_", string.as_lua_id(tree[1]))
elseif "FileChunks" == _exp_0 then
return error("Cannot convert FileChunks to a single block of lua, since each chunk's " .. "compilation depends on the earlier chunks")
else

18
nomsu_compiler.moon
View File

@ -35,7 +35,7 @@ string.as_lua_id = (str)->
str = gsub str, "%W", (c)->
if c == ' ' then '_'
else format("x%02X", byte(c))
return '_'..str
return str
table.map = (fn)=> [fn(v) for _,v in ipairs(@)]
table.fork = (t, values)-> setmetatable(values or {}, {__index:t})
@ -338,8 +338,8 @@ with NomsuCompiler
.compile = (tree)=>
if tree.version
if get_version = @['A'..string.as_lua_id("Nomsu version")]
if upgrade = @['A'..string.as_lua_id("1 upgraded from 2 to 3")]
if get_version = @['A_'..string.as_lua_id("Nomsu version")]
if upgrade = @['A_'..string.as_lua_id("1 upgraded from 2 to 3")]
tree = upgrade(tree, tree.version, get_version!)
switch tree.type
when "Action"
@ -354,7 +354,12 @@ with NomsuCompiler
"Compile-time action:\n%s\nfailed to produce any Lua"
return ret
lua = LuaCode.Value(tree.source, "A",string.as_lua_id(stub),"(")
lua = LuaCode.Value(tree.source)
if tree.target
lua\append @compile(tree.target), ":"
else
lua\append "A_"
lua\append(string.as_lua_id(stub),"(")
args = {}
for i, tok in ipairs tree
if type(tok) == "string" then continue
@ -372,9 +377,6 @@ with NomsuCompiler
insert args, arg_lua
lua\concat_append args, ", "
lua\append ")"
if tree.target
target_lua = @compile(tree.target)
lua\prepend(target_lua, ":")
return lua
when "EscapedNomsu"
@ -496,7 +498,7 @@ with NomsuCompiler
return LuaCode.Value(tree.source, tostring(tree[1]))
when "Var"
return LuaCode.Value(tree.source, string.as_lua_id(tree[1]))
return LuaCode.Value(tree.source, "_", string.as_lua_id(tree[1]))
when "FileChunks"
error("Cannot convert FileChunks to a single block of lua, since each chunk's "..