51 lines
969 B
Rust
51 lines
969 B
Rust
// xfail-pretty
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use std;
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use syntax;
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import io::*;
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import syntax::diagnostic;
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import syntax::ast;
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import syntax::codemap;
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import syntax::parse;
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import syntax::print::*;
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fn new_parse_sess() -> parse::parse_sess {
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fail;
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}
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trait fake_ext_ctxt {
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fn session() -> fake_session;
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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: parse::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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}
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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 abc = #ast{23};
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check_pp(abc, pprust::print_expr, "23");
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let expr3 = #ast{2 - $(abcd) + 7}; //~ ERROR unresolved name: abcd
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check_pp(expr3, pprust::print_expr, "2 - 23 + 7");
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}
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fn check_pp<T>(expr: T, f: fn(pprust::ps, T), expect: str) {
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fail;
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}
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