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fix(library/coercion): bug in coercion to function-class

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-05-25 08:21:53 -07:00
parent a9a5f8628f
commit f598c6a110
1 changed files with 7 additions and 7 deletions
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14
src/library/coercion.cpp
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@ -144,7 +144,8 @@ static void add_coercion(coercion_ext & ext, name const & C, expr const & f, exp
static void add_coercion_trans(coercion_ext & ext, io_state const & ios, name const & C,
level_param_names const & f_level_params, expr const & f, expr const & f_type, unsigned f_num_args,
level_param_names const & g_level_params, expr g, expr const & g_type, unsigned g_num_args) {
level_param_names const & g_level_params, expr g, expr const & g_type, unsigned g_num_args,
coercion_class const & g_class) {
expr t = f_type;
buffer<expr> args;
for (unsigned i = 0; i <= f_num_args; i++)
@ -171,7 +172,6 @@ static void add_coercion_trans(coercion_ext & ext, io_state const & ios, name co
expr gf_type = g_type;
while (is_pi(gf_type))
gf_type = binding_body(gf_type);
coercion_class new_cls = *type_to_coercion_class(gf_type);
gf_type = instantiate(instantiate_params(gf_type, g_level_params, const_levels(D_cnst)), gf_args.size(), gf_args.data());
unsigned i = f_arg_types.size();
while (i > 0) {
@ -179,11 +179,11 @@ static void add_coercion_trans(coercion_ext & ext, io_state const & ios, name co
gf = mk_lambda(f_arg_names[i], f_arg_types[i], gf);
gf_type = mk_pi(f_arg_names[i], f_arg_types[i], gf_type);
}
add_coercion(ext, C, gf, gf_type, f_level_params, f_num_args, new_cls, ios);
add_coercion(ext, C, gf, gf_type, f_level_params, f_num_args, g_class, ios);
}
static void add_coercion_trans_to(coercion_ext & ext, name const & C, expr const & f, expr const & f_type,
level_param_names const & ls, unsigned num_args,
level_param_names const & ls, unsigned num_args, coercion_class const & cls,
io_state const & ios) {
// apply transitivity using ext.m_to
coercion_class C_cls = coercion_class::mk_user(C);
@ -198,7 +198,7 @@ static void add_coercion_trans_to(coercion_ext & ext, name const & C, expr const
// B >-> C >-> D
add_coercion_trans(ext, ios, B,
info.m_level_params, info.m_fun, info.m_fun_type, info.m_num_args,
ls, f, f_type, num_args);
ls, f, f_type, num_args, cls);
break;
}
}
@ -219,7 +219,7 @@ static void add_coercion_trans_from(coercion_ext & ext, name const & C, expr con
// C >-> D >-> E
add_coercion_trans(ext, ios, C,
ls, f, f_type, num_args,
D_info.m_level_params, D_info.m_fun, D_info.m_fun_type, D_info.m_num_args);
D_info.m_level_params, D_info.m_fun, D_info.m_fun_type, D_info.m_num_args, D_info.m_to);
}
}
@ -267,7 +267,7 @@ static environment add_coercion(environment env, name const & C, expr const & f,
level_param_names const & ls, unsigned num_args,
coercion_class const & cls, io_state const & ios) {
coercion_ext ext = get_extension(env);
add_coercion_trans_to(ext, C, f, f_type, ls, num_args, ios);
add_coercion_trans_to(ext, C, f, f_type, ls, num_args, cls, ios);
add_coercion_trans_from(ext, C, f, f_type, ls, num_args, cls, ios);
add_coercion(ext, C, f, f_type, ls, num_args, cls, ios);
name const & f_name = const_name(f);