54 lines
1.4 KiB
Rust
54 lines
1.4 KiB
Rust
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// xfail-test
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// fails pretty printing for some reason
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use rustc;
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import rustc::driver::diagnostic;
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import rustc::syntax;
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import rustc::syntax::ast;
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import rustc::syntax::codemap;
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import rustc::syntax::print::pprust;
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import rustc::syntax::parse::parser;
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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(option::none);
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let sess = @{
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cm: cm,
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mut next_id: 1,
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span_diagnostic: diagnostic::mk_span_handler(handler, cm),
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mut chpos: 0u,
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mut byte_pos: 0u
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};
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ret sess;
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}
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iface fake_ext_ctxt {
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fn session() -> fake_session;
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fn cfg() -> ast::crate_cfg;
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fn parse_sess() -> parser::parse_sess;
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}
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type fake_options = {cfg: ast::crate_cfg};
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type fake_session = {opts: @fake_options,
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parse_sess: parser::parse_sess};
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impl of fake_ext_ctxt for fake_session {
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fn session() -> fake_session {self}
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fn cfg() -> ast::crate_cfg { self.opts.cfg }
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fn parse_sess() -> parser::parse_sess { self.parse_sess }
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}
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fn mk_ctxt() -> fake_ext_ctxt {
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let opts : fake_options = {cfg: []};
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{opts: @opts, parse_sess: new_parse_sess()} as fake_ext_ctxt
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}
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fn main() {
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let ext_cx = mk_ctxt();
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let s = #ast(expr){__s};
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let e = #ast(expr){__e};
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let f = #ast(expr){$(s).foo {|__e| $(e)}};
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log(error, pprust::expr_to_str(f));
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}
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