96 lines
4.2 KiB
Text
96 lines
4.2 KiB
Text
/-
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Copyright (c) 2018 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: Sebastian Ullrich
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-/
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import init.lean.parser.module init.lean.expander init.lean.elaborator init.lean.util init.io
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namespace lean
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open lean.parser
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open lean.expander
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open lean.elaborator
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def mk_config (filename := "<unknown>") (input := "") : except string module_parser_config :=
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do t ← parser.mk_token_trie $
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parser.tokens module.parser ++
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parser.tokens command.builtin_command_parsers ++
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parser.tokens term.builtin_leading_parsers ++
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parser.tokens term.builtin_trailing_parsers,
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pure $ {
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filename := filename, input := input, tokens := t,
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command_parsers := command.builtin_command_parsers,
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leading_term_parsers := term.builtin_leading_parsers,
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trailing_term_parsers := term.builtin_trailing_parsers,
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}
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def run_frontend (filename input : string) (print_msg : message → except_t string io unit) :
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except_t string io (list module_parser_output) := do
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parser_cfg ← monad_except.lift_except $ mk_config filename input,
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let expander_cfg : expander_config := {filename := filename, input := input, transformers := builtin_transformers},
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let parser_k := parser.run parser_cfg input (λ st _, module.parser st),
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let elab_k := elaborator.run {filename := filename, input := input, initial_parser_cfg := parser_cfg},
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io.prim.iterate_eio (parser_k, elab_k, parser_cfg, expander_cfg, ([] : list module_parser_output)) $ λ ⟨parser_k, elab_k, parser_cfg, expander_cfg, outs⟩, do
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let pos := match outs with out::_ := out.pos | [] := default _,
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r ← monad_lift $ profileit_pure "parsing" pos $ λ _, parser_k.resume parser_cfg,
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match r with
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| coroutine_result_core.done p := do {
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io.println "parser died!!",
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pure (sum.inr outs.reverse)
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}
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| coroutine_result_core.yielded out parser_k := do {
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match out.messages.to_list with
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| [] := pure () /-do
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io.println "result:",
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io.println (to_string stx)-/
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| msgs := do {
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msgs.mfor print_msg/-,
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io.println "partial syntax tree:",
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io.println (to_string out.cmd)-/
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},
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--io.println out.cmd,
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r ← monad_lift $ profileit_pure "expanding" pos $ λ _, (expand out.cmd).run expander_cfg,
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match r with
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| except.ok cmd' := do {
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--io.println cmd',
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r ← monad_lift $ profileit_pure "elaborating" pos $ λ _, elab_k.resume cmd',
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match r with
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| coroutine_result_core.done msgs := do {
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when ¬(cmd'.is_of_kind module.eoi) $
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io.println "elaborator died!!",
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msgs.to_list.mfor print_msg,
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/-print_msg {filename := filename, severity := message_severity.information,
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pos := ⟨1, 0⟩,
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text := "parser cache hit rate: " ++ to_string out.cache.hit ++ "/" ++
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to_string (out.cache.hit + out.cache.miss)},-/
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pure $ sum.inr (out::outs).reverse
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}
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| coroutine_result_core.yielded elab_out elab_k := do {
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elab_out.messages.to_list.mfor print_msg,
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pure (sum.inl (parser_k, elab_k, elab_out.parser_cfg, elab_out.expander_cfg, out :: outs))
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}
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}
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| except.error e := print_msg e *> pure (sum.inl (parser_k, elab_k, parser_cfg, expander_cfg, out :: outs))
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}
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@[export lean_process_file]
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def process_file (f s : string) (json : bool) : io bool := do
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--let s := (s.mk_iterator.nextn 10000).prev_to_string,
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let print_msg : message → except_t string io unit := λ msg,
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if json then
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io.println $ "{\"file_name\": \"<stdin>\", \"pos_line\": " ++ to_string msg.pos.line ++
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", \"pos_col\": " ++ to_string msg.pos.column ++
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", \"severity\": " ++ repr (match msg.severity with
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| message_severity.information := "information"
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| message_severity.warning := "warning"
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| message_severity.error := "error") ++
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", \"caption\": " ++ repr msg.caption ++
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", \"text\": " ++ repr msg.text ++ "}"
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else io.println msg.to_string,
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ex ← (run_frontend f s print_msg).run,
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match ex with
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| except.ok _ := pure tt
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| except.error e := do
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(print_msg {filename := f, severity := message_severity.error, pos := ⟨1, 0⟩, text := e}).run,
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pure ff
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end lean
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