53 lines
1.3 KiB
Lua
53 lines
1.3 KiB
Lua
import("util.lua")
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local env = environment()
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print(get_options())
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parse_lean_cmds([[
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Variable f : Int -> Int -> Int
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Variable g : Bool -> Bool -> Bool
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Variables a b : Int
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Variables i j : Int
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Variables p q : Bool
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Notation 100 _ ++ _ : f
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Notation 100 _ ++ _ : g
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SetOption pp::colors true
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SetOption pp::width 300
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]], env)
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print(get_options())
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assert(get_options():get{"pp", "colors"})
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assert(get_options():get{"pp", "width"} == 300)
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parse_lean_cmds([[
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Show i ++ j
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Show f i j
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]], env)
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local env2 = environment()
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parse_lean_cmds([[
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Variable f : Int -> Int -> Int
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Variables a b : Int
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Show f a b
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Notation 100 _ -- _ : f
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]], env2)
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local f, a, b = Consts("f, a, b")
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assert(tostring(f(a, b)) == "f a b")
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set_formatter(lean_formatter(env))
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assert(tostring(f(a, b)) == "a ++ b")
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set_formatter(lean_formatter(env2))
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assert(tostring(f(a, b)) == "a -- b")
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local fmt = lean_formatter(env)
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-- We can parse commands with respect to environment env2,
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-- but using a formatter based on env.
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parse_lean_cmds([[
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Show f a b
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]], env2, options(), fmt)
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set_formatter(fmt)
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env = nil
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env2 = nil
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fmt = nil
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collectgarbage()
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-- The references to env, env2 and fmt were removed, but The global
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-- formatter (set with set_formatter) still has a reference to its
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-- environment.
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assert(tostring(f(a, b)) == "a ++ b")
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