diff options
Diffstat (limited to 'tex/context/base/back-ini.lua')
| -rw-r--r-- | tex/context/base/back-ini.lua | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/tex/context/base/back-ini.lua b/tex/context/base/back-ini.lua index 5cabc16ac..39de73741 100644 --- a/tex/context/base/back-ini.lua +++ b/tex/context/base/back-ini.lua @@ -6,7 +6,6 @@ if not modules then modules = { } end modules ['back-ini'] = { license = "see context related readme files" } -local setmetatable = setmetatable backends = backends or { } local backends = backends @@ -15,21 +14,26 @@ local trace_backend = false trackers.register("backend.initializers", function( local report_backend = logs.reporter("backend","initializing") +local allocate = utilities.storage.allocate +local setmetatableindex = table.setmetatableindex + local function nothing() return nil end backends.nothing = nothing -local mt = { - __index = function(t,k) - t[k] = nothing - return nothing - end -} +local nodeinjections = { } +local codeinjections = { } +local registrations = { } +local tables = allocate() + +local function donothing(t,k) + t[k] = nothing + return nothing +end -local nodeinjections = { } setmetatable(nodeinjections, mt) -local codeinjections = { } setmetatable(codeinjections, mt) -local registrations = { } setmetatable(registrations, mt) -local tables = { } +setmetatableindex(nodeinjections, donothing) +setmetatableindex(codeinjections, donothing) +setmetatableindex(registrations, donothing) local defaults = { nodeinjections = nodeinjections, @@ -40,10 +44,10 @@ local defaults = { backends.defaults = defaults -backends.nodeinjections = { } setmetatable(backends.nodeinjections, { __index = nodeinjections }) -backends.codeinjections = { } setmetatable(backends.codeinjections, { __index = codeinjections }) -backends.registrations = { } setmetatable(backends.registrations, { __index = registrations }) -backends.tables = { } setmetatable(backends.tables, { __index = tables }) +backends.nodeinjections = { } setmetatableindex(backends.nodeinjections, nodeinjections) +backends.codeinjections = { } setmetatableindex(backends.codeinjections, codeinjections) +backends.registrations = { } setmetatableindex(backends.registrations, registrations) +backends.tables = { } setmetatableindex(backends.tables, tables) backends.current = "unknown" @@ -57,8 +61,8 @@ function backends.install(what) backends.current = what for category, default in next, defaults do local target, plugin = backends[category], backend[category] - setmetatable(plugin, { __index = default }) - setmetatable(target, { __index = plugin }) + setmetatableindex(plugin, default) + setmetatableindex(target, plugin) end elseif trace_backend then report_backend("no backend named %s",what) @@ -77,7 +81,7 @@ end) local comment = { "comment", "" } -tables.vfspecials = { +tables.vfspecials = allocate { red = comment, green = comment, blue = comment, |