fba35e1a3c
middle::check_alt does the work. Lots of changes to add default cases into alts that were previously inexhaustive.
47 lines
1.3 KiB
Rust
47 lines
1.3 KiB
Rust
#[doc = "AST-parsing helpers"];
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import rustc::driver::driver;
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import rustc::driver::session;
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import rustc::driver::diagnostic;
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import rustc::syntax::ast;
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import rustc::syntax::codemap;
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import rustc::syntax::parse::parser;
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export from_file, from_str, from_file_sess, from_str_sess;
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fn new_parse_sess() -> parser::parse_sess {
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let cm = codemap::new_codemap();
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let handler = diagnostic::mk_handler(none);
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let sess = @{
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cm: cm,
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mutable next_id: 1,
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span_diagnostic: diagnostic::mk_span_handler(handler, cm),
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mutable chpos: 0u,
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mutable byte_pos: 0u
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};
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ret sess;
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}
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fn from_file(file: str) -> @ast::crate {
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parser::parse_crate_from_file(
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file, [], new_parse_sess())
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}
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fn from_str(source: str) -> @ast::crate {
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parser::parse_crate_from_source_str(
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"-", @source, [], new_parse_sess())
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}
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fn from_file_sess(sess: session::session, file: str) -> @ast::crate {
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parser::parse_crate_from_file(file, cfg(sess), sess.parse_sess)
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}
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fn from_str_sess(sess: session::session, source: str) -> @ast::crate {
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parser::parse_crate_from_source_str(
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"-", @source, cfg(sess), sess.parse_sess)
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}
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fn cfg(sess: session::session) -> ast::crate_cfg {
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driver::default_configuration(sess, "rustdoc", "<anon>")
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}
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