971ae34521
As described at issue #1760, the new error message is: ``` 1760.lean:6:18: error: type mismatch at application f x term x has type big_type : Type 1 but is expected to have type ?m_1 : Type ```
44 lines
2.7 KiB
C++
44 lines
2.7 KiB
C++
/*
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Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include "kernel/expr.h"
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#include "kernel/formatter.h"
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namespace lean {
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format pp_indent_expr(formatter const & fmt, expr const & e);
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format pp_type_expected(formatter const & fmt, expr const & e, expr const * fn_type = nullptr);
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format pp_function_expected(formatter const & fmt, expr const & fn);
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format pp_function_expected(formatter const & fmt, expr const & fn, expr const & fn_type);
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format pp_function_expected(formatter const & fmt, expr const & app, expr const & fn, expr const & fn_type);
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format pp_type_mismatch(formatter const & fmt, expr const & given_type, expr const & expected_type,
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optional<expr> const & given_type_type = optional<expr>(),
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optional<expr> const & expected_type_type = optional<expr>());
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format pp_type_mismatch(formatter const & fmt, expr const & e, expr const & e_type, expr const & expected_type,
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optional<expr> const & e_type_type = optional<expr>(),
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optional<expr> const & expected_type_type = optional<expr>());
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format pp_app_type_mismatch(formatter const & fmt, expr const & app, expr const & fn_type, expr const & arg, expr const & given_type,
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optional<expr> const & given_type_type = optional<expr>(),
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optional<expr> const & domain_type_type = optional<expr>());
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format pp_def_type_mismatch(formatter const & fmt, name const & n, expr const & given_type, expr const & expected_type,
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optional<expr> const & given_type_type = optional<expr>(),
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optional<expr> const & expected_type_type = optional<expr>());
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format pp_decl_has_metavars(formatter const & fmt, name const & n, expr const & e, bool is_type);
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/** \brief Set a list extra configuration options that are used to try to distinguish error such as given/expected type mismatch
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This is a trick used to avoid cryptic error messages when to types seem identical because the pretty printer is suppressing
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universes and/or implicit arguments. The error messages will keep using these extra options until it finds one that
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can distinguish given/expected type. The extra options do not override user provided options.
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*/
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void set_distinguishing_pp_options(list<options> const & opts);
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list<options> const & get_distinguishing_pp_options();
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expr erase_binder_info(expr const & e);
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std::tuple<formatter, format, format> pp_until_different(formatter const & fmt, expr const & e1, expr const & e2);
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format pp_until_meta_visible(formatter const & fmt, expr const & e);
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void initialize_error_msgs();
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void finalize_error_msgs();
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}
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