Convert misc compiler bits to istrs. Issue #855

This commit is contained in:
Brian Anderson 2011-08-27 18:01:52 -07:00
parent cffd9b8044
commit 5f57a508af
12 changed files with 93 additions and 91 deletions

View file

@ -28,15 +28,15 @@ fn expand_syntax_ext(cx: &ext_ctxt, sp: codemap::span, arg: @ast::expr,
let var = expr_to_str(cx, args[0], ~"#env requires a string");
alt generic_os::getenv(var) {
option::none. { ret make_new_str(cx, sp, ""); }
option::none. { ret make_new_str(cx, sp, ~""); }
option::some(s) {
ret make_new_str(cx, sp, istr::to_estr(s));
ret make_new_str(cx, sp, s);
}
}
}
fn make_new_str(cx: &ext_ctxt, sp: codemap::span, s: str) -> @ast::expr {
ret make_new_lit(cx, sp, ast::lit_str(istr::from_estr(s), ast::sk_rc));
fn make_new_str(cx: &ext_ctxt, sp: codemap::span, s: &istr) -> @ast::expr {
ret make_new_lit(cx, sp, ast::lit_str(s, ast::sk_rc));
}
//
// Local Variables:

View file

@ -52,8 +52,8 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
let sp_lit = @{node: lit, span: sp};
ret @{id: cx.next_id(), node: ast::expr_lit(sp_lit), span: sp};
}
fn make_new_str(cx: &ext_ctxt, sp: span, s: str) -> @ast::expr {
let lit = ast::lit_str(istr::from_estr(s), ast::sk_rc);
fn make_new_str(cx: &ext_ctxt, sp: span, s: &istr) -> @ast::expr {
let lit = ast::lit_str(s, ast::sk_rc);
ret make_new_lit(cx, sp, lit);
}
fn make_new_int(cx: &ext_ctxt, sp: span, i: int) -> @ast::expr {
@ -109,8 +109,9 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
ret [~"extfmt", ~"rt", ident];
} else { ret [~"std", ~"extfmt", ~"rt", ident]; }
}
fn make_rt_path_expr(cx: &ext_ctxt, sp: span, ident: str) -> @ast::expr {
let path = make_path_vec(cx, istr::from_estr(ident));
fn make_rt_path_expr(cx: &ext_ctxt, sp: span,
ident: &istr) -> @ast::expr {
let path = make_path_vec(cx, ident);
ret make_path_expr(cx, sp, path);
}
// Produces an AST expression that represents a RT::conv record,
@ -122,11 +123,11 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
for f: flag in flags {
let fstr;
alt f {
flag_left_justify. { fstr = "flag_left_justify"; }
flag_left_zero_pad. { fstr = "flag_left_zero_pad"; }
flag_space_for_sign. { fstr = "flag_space_for_sign"; }
flag_sign_always. { fstr = "flag_sign_always"; }
flag_alternate. { fstr = "flag_alternate"; }
flag_left_justify. { fstr = ~"flag_left_justify"; }
flag_left_zero_pad. { fstr = ~"flag_left_zero_pad"; }
flag_space_for_sign. { fstr = ~"flag_space_for_sign"; }
flag_sign_always. { fstr = ~"flag_sign_always"; }
flag_alternate. { fstr = ~"flag_alternate"; }
}
flagexprs += [make_rt_path_expr(cx, sp, fstr)];
}
@ -135,14 +136,14 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
// this is a hack placeholder flag
if vec::len::<@ast::expr>(flagexprs) == 0u {
flagexprs += [make_rt_path_expr(cx, sp, "flag_none")];
flagexprs += [make_rt_path_expr(cx, sp, ~"flag_none")];
}
ret make_vec_expr(cx, sp, flagexprs);
}
fn make_count(cx: &ext_ctxt, sp: span, cnt: &count) -> @ast::expr {
alt cnt {
count_implied. {
ret make_rt_path_expr(cx, sp, "count_implied");
ret make_rt_path_expr(cx, sp, ~"count_implied");
}
count_is(c) {
let count_lit = make_new_int(cx, sp, c);
@ -158,13 +159,13 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
alt t {
ty_hex(c) {
alt c {
case_upper. { rt_type = "ty_hex_upper"; }
case_lower. { rt_type = "ty_hex_lower"; }
case_upper. { rt_type = ~"ty_hex_upper"; }
case_lower. { rt_type = ~"ty_hex_lower"; }
}
}
ty_bits. { rt_type = "ty_bits"; }
ty_octal. { rt_type = "ty_octal"; }
_ { rt_type = "ty_default"; }
ty_bits. { rt_type = ~"ty_bits"; }
ty_octal. { rt_type = ~"ty_octal"; }
_ { rt_type = ~"ty_default"; }
}
ret make_rt_path_expr(cx, sp, rt_type);
}
@ -184,9 +185,9 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
ret make_conv_rec(cx, sp, rt_conv_flags, rt_conv_width,
rt_conv_precision, rt_conv_ty);
}
fn make_conv_call(cx: &ext_ctxt, sp: span, conv_type: str, cnv: &conv,
arg: @ast::expr) -> @ast::expr {
let fname = ~"conv_" + istr::from_estr(conv_type);
fn make_conv_call(cx: &ext_ctxt, sp: span, conv_type: &istr,
cnv: &conv, arg: @ast::expr) -> @ast::expr {
let fname = ~"conv_" + conv_type;
let path = make_path_vec(cx, fname);
let cnv_expr = make_rt_conv_expr(cx, sp, cnv);
let args = [cnv_expr, arg];
@ -241,21 +242,21 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
_ { cx.span_unimpl(sp, unsupported); }
}
alt cnv.ty {
ty_str. { ret make_conv_call(cx, arg.span, "str", cnv, arg); }
ty_istr. { ret make_conv_call(cx, arg.span, "istr", cnv, arg); }
ty_str. { ret make_conv_call(cx, arg.span, ~"str", cnv, arg); }
ty_istr. { ret make_conv_call(cx, arg.span, ~"istr", cnv, arg); }
ty_int(sign) {
alt sign {
signed. { ret make_conv_call(cx, arg.span, "int", cnv, arg); }
signed. { ret make_conv_call(cx, arg.span, ~"int", cnv, arg); }
unsigned. {
ret make_conv_call(cx, arg.span, "uint", cnv, arg);
ret make_conv_call(cx, arg.span, ~"uint", cnv, arg);
}
}
}
ty_bool. { ret make_conv_call(cx, arg.span, "bool", cnv, arg); }
ty_char. { ret make_conv_call(cx, arg.span, "char", cnv, arg); }
ty_hex(_) { ret make_conv_call(cx, arg.span, "uint", cnv, arg); }
ty_bits. { ret make_conv_call(cx, arg.span, "uint", cnv, arg); }
ty_octal. { ret make_conv_call(cx, arg.span, "uint", cnv, arg); }
ty_bool. { ret make_conv_call(cx, arg.span, ~"bool", cnv, arg); }
ty_char. { ret make_conv_call(cx, arg.span, ~"char", cnv, arg); }
ty_hex(_) { ret make_conv_call(cx, arg.span, ~"uint", cnv, arg); }
ty_bits. { ret make_conv_call(cx, arg.span, ~"uint", cnv, arg); }
ty_octal. { ret make_conv_call(cx, arg.span, ~"uint", cnv, arg); }
_ { cx.span_unimpl(sp, unsupported); }
}
}
@ -319,12 +320,12 @@ fn pieces_to_expr(cx: &ext_ctxt, sp: span, pieces: &[piece],
}
let fmt_sp = args[0].span;
let n = 0u;
let tmp_expr = make_new_str(cx, sp, "");
let tmp_expr = make_new_str(cx, sp, ~"");
let nargs = vec::len::<@ast::expr>(args);
for pc: piece in pieces {
alt pc {
piece_string(s) {
let s_expr = make_new_str(cx, fmt_sp, s);
let s_expr = make_new_str(cx, fmt_sp, istr::from_estr(s));
tmp_expr = make_add_expr(cx, fmt_sp, tmp_expr, s_expr);
}
piece_conv(conv) {

View file

@ -57,8 +57,7 @@ tag matchable {
}
/* for when given an incompatible bit of AST */
fn match_error(cx: &ext_ctxt, m: &matchable, expected: &str) -> ! {
let expected = istr::from_estr(expected);
fn match_error(cx: &ext_ctxt, m: &matchable, expected: &istr) -> ! {
alt m {
match_expr(x) {
cx.span_fatal(x.span,
@ -355,7 +354,7 @@ fn transcribe_ident(cx: &ext_ctxt, b: &bindings, idx_path: @mutable [uint],
i: &ident, _fld: ast_fold) -> ident {
ret alt follow_for_trans(cx, b.find(i), idx_path) {
some(match_ident(a_id)) { a_id.node }
some(m) { match_error(cx, m, "an identifier") }
some(m) { match_error(cx, m, ~"an identifier") }
none. { i }
}
}
@ -370,7 +369,7 @@ fn transcribe_path(cx: &ext_ctxt, b: &bindings, idx_path: @mutable [uint],
{global: false, idents: [id.node], types: []}
}
some(match_path(a_pth)) { a_pth.node }
some(m) { match_error(cx, m, "a path") }
some(m) { match_error(cx, m, ~"a path") }
none. { p }
}
}
@ -395,7 +394,7 @@ fn transcribe_expr(cx: &ext_ctxt, b: &bindings, idx_path: @mutable [uint],
}
some(match_path(a_pth)) { expr_path(a_pth) }
some(match_expr(a_exp)) { a_exp.node }
some(m) { match_error(cx, m, "an expression") }
some(m) { match_error(cx, m, ~"an expression") }
none. { orig(e, fld) }
}
}
@ -412,7 +411,7 @@ fn transcribe_type(cx: &ext_ctxt, b: &bindings, idx_path: @mutable [uint],
some(id) {
alt follow_for_trans(cx, b.find(id), idx_path) {
some(match_ty(ty)) { ty.node }
some(m) { match_error(cx, m, "a type") }
some(m) { match_error(cx, m, ~"a type") }
none. { orig(t, fld) }
}
}
@ -439,7 +438,7 @@ fn transcribe_block(cx: &ext_ctxt, b: &bindings, idx_path: @mutable [uint],
// possibly allow promotion of ident/path/expr to blocks?
some(m) {
match_error(cx, m, "a block")
match_error(cx, m, ~"a block")
}
none. { orig(blk, fld) }
}
@ -564,13 +563,13 @@ fn p_t_s_r_mac(cx: &ext_ctxt, mac: &ast::mac, s: &selector, b: &binders) {
_ { cx.bug(~"broken traversal in p_t_s_r") }
}
}
fn no_des(cx: &ext_ctxt, sp: &span, syn: &str) -> ! {
fn no_des(cx: &ext_ctxt, sp: &span, syn: &istr) -> ! {
cx.span_fatal(sp, ~"destructuring "
+ istr::from_estr(syn) + ~" is not yet supported");
+ syn + ~" is not yet supported");
}
alt mac.node {
ast::mac_ellipsis. { cx.span_fatal(mac.span, ~"misused `...`"); }
ast::mac_invoc(_, _, _) { no_des(cx, mac.span, "macro calls"); }
ast::mac_invoc(_, _, _) { no_des(cx, mac.span, ~"macro calls"); }
ast::mac_embed_type(ty) {
alt ty.node {
ast::ty_path(pth, _) {
@ -587,10 +586,10 @@ fn p_t_s_r_mac(cx: &ext_ctxt, mac: &ast::mac, s: &selector, b: &binders) {
b.real_binders.insert(
id, compose_sels(s, final_step));
}
none. { no_des(cx, pth.span, "under `#<>`"); }
none. { no_des(cx, pth.span, ~"under `#<>`"); }
}
}
_ { no_des(cx, ty.span, "under `#<>`"); }
_ { no_des(cx, ty.span, ~"under `#<>`"); }
}
}
ast::mac_embed_block(blk) {
@ -608,7 +607,7 @@ fn p_t_s_r_mac(cx: &ext_ctxt, mac: &ast::mac, s: &selector, b: &binders) {
b.real_binders.insert(id,
compose_sels(s, final_step));
}
none. { no_des(cx, blk.span, "under `#{}`"); }
none. { no_des(cx, blk.span, ~"under `#{}`"); }
}
}
}