lean2/tests/lua/expr1.lua

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assert(not binder_info():is_implicit())
assert(not binder_info():is_cast())
assert(not binder_info(false, false):is_implicit())
assert(not binder_info(false, false):is_cast())
assert(binder_info(true):is_implicit())
assert(not binder_info(true):is_cast())
assert(binder_info(true, true):is_implicit())
assert(binder_info(true, true):is_cast())
assert(binder_info():is_contextual())
assert(not binder_info(true, true, false):is_contextual())
assert(binder_info(false, false, true):is_contextual())