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feat(library/explicit): support partial explicit

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Daniel Selsam 2015-10-31 14:02:06 -07:00 committed by Leonardo de Moura
parent 1d670e3193
commit 946e00f71a
2 changed files with 39 additions and 2 deletions
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25
src/library/explicit.cpp
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@ -11,6 +11,7 @@ Author: Leonardo de Moura
namespace lean {
static name * g_explicit_name = nullptr;
static name * g_partial_explicit_name = nullptr;
static name * g_as_atomic_name = nullptr;
static name * g_as_is_name = nullptr;
static name * g_consume_args_name = nullptr;
@ -20,6 +21,11 @@ bool is_explicit(expr const & e) { return is_annotation(e, *g_explicit_name); }
bool is_nested_explicit(expr const & e) { return is_nested_annotation(e, *g_explicit_name); }
expr const & get_explicit_arg(expr const & e) { lean_assert(is_explicit(e)); return get_annotation_arg(e); }
expr mk_partial_explicit(expr const & e) { return mk_annotation(*g_partial_explicit_name, e); }
bool is_partial_explicit(expr const & e) { return is_annotation(e, *g_partial_explicit_name); }
bool is_nested_partial_explicit(expr const & e) { return is_nested_annotation(e, *g_partial_explicit_name); }
expr const & get_partial_explicit_arg(expr const & e) { lean_assert(is_partial_explicit(e)); return get_annotation_arg(e); }
expr mk_as_is(expr const & e) { return mk_annotation(*g_as_is_name, e); }
bool is_as_is(expr const & e) { return is_annotation(e, *g_as_is_name); }
expr const & get_as_is_arg(expr const & e) { lean_assert(is_as_is(e)); return get_annotation_arg(e); }
@ -33,7 +39,8 @@ bool is_consume_args(expr const & e) { return is_annotation(e, *g_consume_args_n
expr const & get_consume_args_arg(expr const & e) { lean_assert(is_consume_args(e)); return get_annotation_arg(e); }
void initialize_explicit() {
g_explicit_name = new name("@");
g_explicit_name = new name("@@");
g_partial_explicit_name = new name("@");
g_as_atomic_name = new name("as_atomic");
g_as_is_name = new name("as_is");
g_consume_args_name = new name("!");
@ -47,6 +54,7 @@ void initialize_explicit() {
void finalize_explicit() {
delete g_as_is_name;
delete g_as_atomic_name;
delete g_partial_explicit_name;
delete g_explicit_name;
delete g_consume_args_name;
}
@ -62,9 +70,24 @@ static int get_explicit_arg(lua_State * L) {
return push_expr(L, get_explicit_arg(to_expr(L, 1)));
}
static int mk_partial_explicit(lua_State * L) { return push_expr(L, mk_partial_explicit(to_expr(L, 1))); }
static int is_partial_explicit(lua_State * L) { return push_boolean(L, is_partial_explicit(to_expr(L, 1))); }
static void check_partial_explicit(lua_State * L, int idx) {
if (!is_partial_explicit(to_expr(L, idx)))
throw exception(sstream() << "arg #" << idx << " is not a '@'-expression");
}
static int get_partial_explicit_arg(lua_State * L) {
check_partial_explicit(L, 1);
return push_expr(L, get_partial_explicit_arg(to_expr(L, 1)));
}
void open_explicit(lua_State * L) {
SET_GLOBAL_FUN(mk_explicit, "mk_explicit");
SET_GLOBAL_FUN(is_explicit, "is_explicit");
SET_GLOBAL_FUN(get_explicit_arg, "get_explicit_arg");
SET_GLOBAL_FUN(mk_partial_explicit, "mk_partial_explicit");
SET_GLOBAL_FUN(is_partial_explicit, "is_partial_explicit");
SET_GLOBAL_FUN(get_partial_explicit_arg, "get_partial_explicit_arg");
}
}

16
src/library/explicit.h
View file

@ -9,7 +9,7 @@ Author: Leonardo de Moura
#include "kernel/expr.h"
namespace lean {
/** \brief Create an explicit expression '@ f'.
/** \brief Create an explicit expression '@@ f'.
This only affects the elaborator behavior.
*/
expr mk_explicit(expr const & e);
@ -22,6 +22,20 @@ bool is_nested_explicit(expr const & e);
*/
expr const & get_explicit_arg(expr const & e);
/** \brief Create an partial explicit expression '@ f'.
This only affects the elaborator behavior.
*/
expr mk_partial_explicit(expr const & e);
/** \brief Return true iff \c e is a partial explicit expression. */
bool is_partial_explicit(expr const & e);
/** \brief See #is_nested_annotation */
bool is_nested_partial_explicit(expr const & e);
/** \brief Return the argument of a partial explicit expression.
\pre is_partial_explicit(e)
*/
expr const & get_partial_explicit_arg(expr const & e);
/** \brief Create an explicit expression that is accepted as is
by the elaborator.
*/