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local eolian = require("eolian")
local keyref = require("docgen.keyref")
local dtree = require("docgen.doctree")
local M = {}
M.get_ctype_str = function(tp, suffix)
tp = tp or "void"
local ct = (type(tp) == "string") and tp or tp:c_type_get()
if not suffix then
return ct
end
if ct:sub(#ct) == "*" then
return ct .. suffix
else
return ct .. " " .. suffix
end
end
local wrap_type_attrs = function(tp, str)
if tp:is_const() then
str = "const(" .. str .. ")"
end
if tp:is_own() then
str = "own(" .. str .. ")"
end
local ffunc = tp:free_func_get()
if ffunc then
str = "free(" .. str .. ", " .. ffunc .. ")"
end
if tp:is_ref() then
str = "ref(" .. str .. ")"
end
return str
end
M.get_type_str = function(tp)
local tps = eolian.type_type
local tpt = tp:type_get()
if tpt == tps.UNKNOWN then
error("unknown type: " .. tp:full_name_get())
elseif tpt == tps.VOID then
return wrap_type_attrs(tp, "void")
elseif tpt == tps.UNDEFINED then
return wrap_type_attrs(tp, "__undefined_type")
elseif tpt == tps.REGULAR or tpt == tps.CLASS then
return wrap_type_attrs(tp, tp:full_name_get())
elseif tpt == tps.COMPLEX then
local stypes = {}
local stp = tp:base_type_get()
while stp do
stypes[#stypes + 1] = M.get_type_str(stp)
stp = stp:next_type_get()
end
return wrap_type_attrs(tp, tp:full_name_get() .. "<"
.. table.concat(stypes, ", ") .. ">")
elseif tpt == tps.POINTER then
local btp = tp:base_type_get()
local suffix = " *"
if btp:type_get() == tps.POINTER then
suffix = "*"
end
return wrap_type_attrs(tp, M.get_type_str(btp) .. suffix)
elseif tpt == tps.STATIC_ARRAY then
return wrap_type_attrs(tp, "static_array<"
.. M.get_type_str(tp:base_type_get()) .. ", "
.. tp:array_size_get() .. ">")
elseif tpt == tps.TERMINATED_ARRAY then
return wrap_type_attrs(tp, "terminated_array<"
.. M.get_type_str(tp:base_type_get()) .. ">")
end
error("unhandled type type: " .. tpt)
end
local add_typedecl_attrs = function(tp, buf)
if tp:is_extern() then
buf[#buf + 1] = "@extern "
end
local ffunc = tp:free_func_get()
if ffunc then
buf[#buf + 1] = "@free("
buf[#buf + 1] = ffunc
buf[#buf + 1] = ") "
end
end
M.get_typedecl_str = function(tp)
local tpt = tp:type_get()
if tpt == dtree.Typedecl.UNKNOWN then
error("unknown typedecl: " .. tp:full_name_get())
elseif tpt == dtree.Typedecl.STRUCT or
tpt == dtree.Typedecl.STRUCT_OPAQUE then
local buf = { "struct " }
add_typedecl_attrs(tp, buf)
buf[#buf + 1] = tp:full_name_get()
if tpt == dtree.Typedecl.STRUCT_OPAQUE then
buf[#buf + 1] = ";"
return table.concat(buf)
end
local fields = tp:struct_fields_get()
if #fields == 0 then
buf[#buf + 1] = " {}"
return table.concat(buf)
end
buf[#buf + 1] = " {\n"
for i, fld in ipairs(fields) do
buf[#buf + 1] = " "
buf[#buf + 1] = fld:name_get()
buf[#buf + 1] = ": "
buf[#buf + 1] = M.get_type_str(fld:type_get())
buf[#buf + 1] = ";\n"
end
buf[#buf + 1] = "}"
return table.concat(buf)
elseif tpt == dtree.Typedecl.ENUM then
local buf = { "enum " }
add_typedecl_attrs(tp, buf)
buf[#buf + 1] = tp:full_name_get()
local fields = tp:enum_fields_get()
if #fields == 0 then
buf[#buf + 1] = " {}"
return table.concat(buf)
end
buf[#buf + 1] = " {\n"
for i, fld in ipairs(fields) do
buf[#buf + 1] = " "
buf[#buf + 1] = fld:name_get()
local val = fld:value_get()
if val then
buf[#buf + 1] = ": "
buf[#buf + 1] = val:serialize()
end
if i == #fields then
buf[#buf + 1] = "\n"
else
buf[#buf + 1] = ",\n"
end
end
buf[#buf + 1] = "}"
return table.concat(buf)
elseif tpt == dtree.Typedecl.ALIAS then
local buf = { "type " }
add_typedecl_attrs(tp, buf)
buf[#buf + 1] = tp:full_name_get()
buf[#buf + 1] = ": "
buf[#buf + 1] = M.get_type_str(tp:base_type_get())
buf[#buf + 1] = ";"
return table.concat(buf)
end
error("unhandled typedecl type: " .. tpt)
end
M.get_typedecl_cstr = function(tp)
local tpt = tp:type_get()
if tpt == dtree.Typedecl.UNKNOWN then
error("unknown typedecl: " .. tp:full_name_get())
elseif tpt == dtree.Typedecl.STRUCT or
tpt == dtree.Typedecl.STRUCT_OPAQUE then
local buf = { "typedef struct " }
local fulln = tp:full_name_get():gsub("%.", "_");
keyref.add(fulln, "c")
buf[#buf + 1] = "_" .. fulln;
if tpt == dtree.Typedecl.STRUCT_OPAQUE then
buf[#buf + 1] = " " .. fulln .. ";"
return table.concat(buf)
end
local fields = tp:struct_fields_get()
if #fields == 0 then
buf[#buf + 1] = " {} " .. fulln .. ";"
return table.concat(buf)
end
buf[#buf + 1] = " {\n"
for i, fld in ipairs(fields) do
buf[#buf + 1] = " "
buf[#buf + 1] = M.get_ctype_str(fld:type_get(), fld:name_get())
buf[#buf + 1] = ";\n"
end
buf[#buf + 1] = "} " .. fulln .. ";"
return table.concat(buf)
elseif tpt == dtree.Typedecl.ENUM then
local buf = { "typedef enum" }
local fulln = tp:full_name_get():gsub("%.", "_");
keyref.add(fulln, "c")
local fields = tp:enum_fields_get()
if #fields == 0 then
buf[#buf + 1] = " {} " .. fulln .. ";"
return table.concat(buf)
end
buf[#buf + 1] = " {\n"
for i, fld in ipairs(fields) do
buf[#buf + 1] = " "
local cn = fld:c_name_get()
buf[#buf + 1] = cn
keyref.add(cn, "c")
local val = fld:value_get()
if val then
buf[#buf + 1] = " = "
local ev = val:eval(eolian.expression_mask.INT)
local lit = ev:to_literal()
buf[#buf + 1] = lit
local ser = val:serialize()
if ser and ser ~= lit then
buf[#buf + 1] = " /* " .. ser .. " */"
end
end
if i == #fields then
buf[#buf + 1] = "\n"
else
buf[#buf + 1] = ",\n"
end
end
buf[#buf + 1] = "} " .. fulln .. ";"
return table.concat(buf)
elseif tpt == dtree.Typedecl.ALIAS then
local fulln = tp:full_name_get():gsub("%.", "_");
keyref.add(fulln, "c")
return "typedef " .. M.get_ctype_str(tp:base_type_get(), fulln) .. ";"
end
error("unhandled typedecl type: " .. tpt)
end
return M
|
