auto merge of #8637 : alexcrichton/rust/ifmt-less-hax, r=graydon
Recent improvements to `&mut Trait` have made this work possible, and it solidifies that `ifmt` doesn't always have to return a string, but rather it's based around writers.
This commit is contained in:
bors
commit
a17c7e4f2c
@ -12,33 +12,33 @@
|
||||
|
||||
# The Formatting Module
|
||||
|
||||
This module contains the runtime support for the `ifmt!` syntax extension. This
|
||||
This module contains the runtime support for the `format!` syntax extension. This
|
||||
macro is implemented in the compiler to emit calls to this module in order to
|
||||
format arguments at runtime into strings and streams.
|
||||
|
||||
The functions contained in this module should not normally be used in everyday
|
||||
use cases of `ifmt!`. The assumptions made by these functions are unsafe for all
|
||||
use cases of `format!`. The assumptions made by these functions are unsafe for all
|
||||
inputs, and the compiler performs a large amount of validation on the arguments
|
||||
to `ifmt!` in order to ensure safety at runtime. While it is possible to call
|
||||
to `format!` in order to ensure safety at runtime. While it is possible to call
|
||||
these functions directly, it is not recommended to do so in the general case.
|
||||
|
||||
## Usage
|
||||
|
||||
The `ifmt!` macro is intended to be familiar to those coming from C's
|
||||
printf/sprintf functions or Python's `str.format` function. In its current
|
||||
revision, the `ifmt!` macro returns a `~str` type which is the result of the
|
||||
The `format!` macro is intended to be familiar to those coming from C's
|
||||
printf/fprintf functions or Python's `str.format` function. In its current
|
||||
revision, the `format!` macro returns a `~str` type which is the result of the
|
||||
formatting. In the future it will also be able to pass in a stream to format
|
||||
arguments directly while performing minimal allocations.
|
||||
|
||||
Some examples of the `ifmt!` extension are:
|
||||
Some examples of the `format!` extension are:
|
||||
|
||||
~~~{.rust}
|
||||
ifmt!("Hello") // => ~"Hello"
|
||||
ifmt!("Hello, {:s}!", "world") // => ~"Hello, world!"
|
||||
ifmt!("The number is {:d}", 1) // => ~"The number is 1"
|
||||
ifmt!("{}", ~[3, 4]) // => ~"~[3, 4]"
|
||||
ifmt!("{value}", value=4) // => ~"4"
|
||||
ifmt!("{} {}", 1, 2) // => ~"1 2"
|
||||
format!("Hello") // => ~"Hello"
|
||||
format!("Hello, {:s}!", "world") // => ~"Hello, world!"
|
||||
format!("The number is {:d}", 1) // => ~"The number is 1"
|
||||
format!("{}", ~[3, 4]) // => ~"~[3, 4]"
|
||||
format!("{value}", value=4) // => ~"4"
|
||||
format!("{} {}", 1, 2) // => ~"1 2"
|
||||
~~~
|
||||
|
||||
From these, you can see that the first argument is a format string. It is
|
||||
@ -62,7 +62,7 @@
|
||||
### Named parameters
|
||||
|
||||
Rust itself does not have a Python-like equivalent of named parameters to a
|
||||
function, but the `ifmt!` macro is a syntax extension which allows it to
|
||||
function, but the `format!` macro is a syntax extension which allows it to
|
||||
leverage named parameters. Named parameters are listed at the end of the
|
||||
argument list and have the syntax:
|
||||
|
||||
@ -146,7 +146,7 @@
|
||||
|
||||
## Internationalization
|
||||
|
||||
The formatting syntax supported by the `ifmt!` extension supports
|
||||
The formatting syntax supported by the `format!` extension supports
|
||||
internationalization by providing "methods" which execute various different
|
||||
outputs depending on the input. The syntax and methods provided are similar to
|
||||
other internationalization systems, so again nothing should seem alien.
|
||||
@ -164,7 +164,7 @@
|
||||
example:
|
||||
|
||||
~~~
|
||||
ifmt!("{0, select, other{#}}", "hello") // => ~"hello"
|
||||
format!("{0, select, other{#}}", "hello") // => ~"hello"
|
||||
~~~
|
||||
|
||||
This example is the equivalent of `{0:s}` essentially.
|
||||
@ -399,7 +399,44 @@ pub struct Argument<'self> {
|
||||
#[allow(missing_doc)]
|
||||
pub trait Float { fn fmt(&Self, &mut Formatter); }
|
||||
|
||||
/// The sprintf function takes a precompiled format string and a list of
|
||||
/// The `write` function takes an output stream, a precompiled format string,
|
||||
/// and a list of arguments. The arguments will be formatted according to the
|
||||
/// specified format string into the output stream provided.
|
||||
///
|
||||
/// See the documentation for `format` for why this function is unsafe and care
|
||||
/// should be taken if calling it manually.
|
||||
///
|
||||
/// Thankfully the rust compiler provides the macro `fmtf!` which will perform
|
||||
/// all of this validation at compile-time and provides a safe interface for
|
||||
/// invoking this function.
|
||||
///
|
||||
/// # Arguments
|
||||
///
|
||||
/// * output - the buffer to write output to
|
||||
/// * fmts - the precompiled format string to emit
|
||||
/// * args - the list of arguments to the format string. These are only the
|
||||
/// positional arguments (not named)
|
||||
///
|
||||
/// Note that this function assumes that there are enough arguments for the
|
||||
/// format string.
|
||||
pub unsafe fn write(output: &mut io::Writer,
|
||||
fmt: &[rt::Piece], args: &[Argument]) {
|
||||
let mut formatter = Formatter {
|
||||
flags: 0,
|
||||
width: None,
|
||||
precision: None,
|
||||
buf: output,
|
||||
align: parse::AlignUnknown,
|
||||
fill: ' ',
|
||||
args: args,
|
||||
curarg: args.iter(),
|
||||
};
|
||||
for piece in fmt.iter() {
|
||||
formatter.run(piece, None);
|
||||
}
|
||||
}
|
||||
|
||||
/// The format function takes a precompiled format string and a list of
|
||||
/// arguments, to return the resulting formatted string.
|
||||
///
|
||||
/// This is currently an unsafe function because the types of all arguments
|
||||
@ -409,7 +446,7 @@ pub struct Argument<'self> {
|
||||
/// for formatting the right type value. Because of this, the function is marked
|
||||
/// as `unsafe` if this is being called manually.
|
||||
///
|
||||
/// Thankfully the rust compiler provides the macro `ifmt!` which will perform
|
||||
/// Thankfully the rust compiler provides the macro `format!` which will perform
|
||||
/// all of this validation at compile-time and provides a safe interface for
|
||||
/// invoking this function.
|
||||
///
|
||||
@ -421,24 +458,9 @@ pub struct Argument<'self> {
|
||||
///
|
||||
/// Note that this function assumes that there are enough arguments for the
|
||||
/// format string.
|
||||
pub unsafe fn sprintf(fmt: &[rt::Piece], args: &[Argument]) -> ~str {
|
||||
let output = MemWriter::new();
|
||||
{
|
||||
let mut formatter = Formatter {
|
||||
flags: 0,
|
||||
width: None,
|
||||
precision: None,
|
||||
// FIXME(#8248): shouldn't need a transmute
|
||||
buf: cast::transmute(&output as &io::Writer),
|
||||
align: parse::AlignUnknown,
|
||||
fill: ' ',
|
||||
args: args,
|
||||
curarg: args.iter(),
|
||||
};
|
||||
for piece in fmt.iter() {
|
||||
formatter.run(piece, None);
|
||||
}
|
||||
}
|
||||
pub unsafe fn format(fmt: &[rt::Piece], args: &[Argument]) -> ~str {
|
||||
let mut output = MemWriter::new();
|
||||
write(&mut output as &mut io::Writer, fmt, args);
|
||||
return str::from_bytes_owned(output.inner());
|
||||
}
|
||||
|
||||
@ -446,7 +468,7 @@ impl<'self> Formatter<'self> {
|
||||
|
||||
// First up is the collection of functions used to execute a format string
|
||||
// at runtime. This consumes all of the compile-time statics generated by
|
||||
// the ifmt! syntax extension.
|
||||
// the format! syntax extension.
|
||||
|
||||
fn run(&mut self, piece: &rt::Piece, cur: Option<&str>) {
|
||||
let setcount = |slot: &mut Option<uint>, cnt: &parse::Count| {
|
||||
@ -710,7 +732,7 @@ fn with_padding(&mut self, padding: uint,
|
||||
}
|
||||
|
||||
/// This is a function which calls are emitted to by the compiler itself to
|
||||
/// create the Argument structures that are passed into the `sprintf` function.
|
||||
/// create the Argument structures that are passed into the `format` function.
|
||||
#[doc(hidden)]
|
||||
pub fn argument<'a, T>(f: extern "Rust" fn(&T, &mut Formatter),
|
||||
t: &'a T) -> Argument<'a> {
|
||||
|
||||
@ -139,8 +139,12 @@ fn builtin_item_tt(f: SyntaxExpanderTTItemFun) -> @Transformer {
|
||||
ext::tt::macro_rules::add_new_extension));
|
||||
syntax_expanders.insert(intern(&"fmt"),
|
||||
builtin_normal_tt(ext::fmt::expand_syntax_ext));
|
||||
syntax_expanders.insert(intern(&"ifmt"),
|
||||
builtin_normal_tt(ext::ifmt::expand_syntax_ext));
|
||||
syntax_expanders.insert(intern(&"format"),
|
||||
builtin_normal_tt(ext::ifmt::expand_format));
|
||||
syntax_expanders.insert(intern(&"write"),
|
||||
builtin_normal_tt(ext::ifmt::expand_write));
|
||||
syntax_expanders.insert(intern(&"writeln"),
|
||||
builtin_normal_tt(ext::ifmt::expand_writeln));
|
||||
syntax_expanders.insert(
|
||||
intern(&"auto_encode"),
|
||||
@SE(ItemDecorator(ext::auto_encode::expand_auto_encode)));
|
||||
|
||||
@ -758,32 +758,32 @@ macro_rules! info (
|
||||
)
|
||||
)
|
||||
|
||||
// conditionally define debug!, but keep it type checking even
|
||||
// in non-debug builds.
|
||||
macro_rules! __debug (
|
||||
macro_rules! debug (
|
||||
($arg:expr) => (
|
||||
__log(4u32, fmt!( \"%?\", $arg ))
|
||||
if cfg!(debug) { __log(4u32, fmt!( \"%?\", $arg )) }
|
||||
);
|
||||
($( $arg:expr ),+) => (
|
||||
__log(4u32, fmt!( $($arg),+ ))
|
||||
if cfg!(debug) { __log(4u32, fmt!( $($arg),+ )) }
|
||||
)
|
||||
)
|
||||
|
||||
#[cfg(debug)]
|
||||
#[macro_escape]
|
||||
mod debug_macro {
|
||||
macro_rules! debug (($($arg:expr),*) => {
|
||||
__debug!($($arg),*)
|
||||
})
|
||||
}
|
||||
macro_rules! error2 (
|
||||
($($arg:tt)*) => ( __log(1u32, format!($($arg)*)))
|
||||
)
|
||||
|
||||
#[cfg(not(debug))]
|
||||
#[macro_escape]
|
||||
mod debug_macro {
|
||||
macro_rules! debug (($($arg:expr),*) => {
|
||||
if false { __debug!($($arg),*) }
|
||||
})
|
||||
}
|
||||
macro_rules! warn2 (
|
||||
($($arg:tt)*) => ( __log(2u32, format!($($arg)*)))
|
||||
)
|
||||
|
||||
macro_rules! info2 (
|
||||
($($arg:tt)*) => ( __log(3u32, format!($($arg)*)))
|
||||
)
|
||||
|
||||
macro_rules! debug2 (
|
||||
($($arg:tt)*) => (
|
||||
if cfg!(debug) { __log(4u32, format!($($arg)*)) }
|
||||
)
|
||||
)
|
||||
|
||||
macro_rules! fail(
|
||||
() => (
|
||||
@ -797,6 +797,15 @@ macro_rules! fail(
|
||||
)
|
||||
)
|
||||
|
||||
macro_rules! fail2(
|
||||
() => (
|
||||
fail!(\"explicit failure\")
|
||||
);
|
||||
($($arg:tt)+) => (
|
||||
::std::sys::FailWithCause::fail_with(format!($($arg)+), file!(), line!())
|
||||
)
|
||||
)
|
||||
|
||||
macro_rules! assert(
|
||||
($cond:expr) => {
|
||||
if !$cond {
|
||||
@ -940,6 +949,7 @@ macro_rules! cond (
|
||||
);
|
||||
)
|
||||
|
||||
// NOTE(acrichto): start removing this after the next snapshot
|
||||
macro_rules! printf (
|
||||
($arg:expr) => (
|
||||
print(fmt!(\"%?\", $arg))
|
||||
@ -949,6 +959,7 @@ macro_rules! printf (
|
||||
)
|
||||
)
|
||||
|
||||
// NOTE(acrichto): start removing this after the next snapshot
|
||||
macro_rules! printfln (
|
||||
($arg:expr) => (
|
||||
println(fmt!(\"%?\", $arg))
|
||||
@ -958,6 +969,19 @@ macro_rules! printfln (
|
||||
)
|
||||
)
|
||||
|
||||
// FIXME(#6846) once stdio is redesigned, this shouldn't perform an
|
||||
// allocation but should rather delegate to an invocation of
|
||||
// write! instead of format!
|
||||
macro_rules! print (
|
||||
($($arg:tt)+) => ( ::std::io::print(format!($($arg)+)))
|
||||
)
|
||||
|
||||
// FIXME(#6846) once stdio is redesigned, this shouldn't perform an
|
||||
// allocation but should rather delegate to an io::Writer
|
||||
macro_rules! println (
|
||||
($($arg:tt)+) => ({ print!($($arg)+); ::std::io::println(\"\"); })
|
||||
)
|
||||
|
||||
// NOTE: use this after a snapshot lands to abstract the details
|
||||
// of the TLS interface.
|
||||
macro_rules! local_data_key (
|
||||
|
||||
@ -54,20 +54,32 @@ impl Context {
|
||||
/// Parses the arguments from the given list of tokens, returning None if
|
||||
/// there's a parse error so we can continue parsing other fmt! expressions.
|
||||
fn parse_args(&mut self, sp: span,
|
||||
tts: &[ast::token_tree]) -> Option<@ast::expr> {
|
||||
leading_expr: bool,
|
||||
tts: &[ast::token_tree]) -> (Option<@ast::expr>,
|
||||
Option<@ast::expr>) {
|
||||
let p = rsparse::new_parser_from_tts(self.ecx.parse_sess(),
|
||||
self.ecx.cfg(),
|
||||
tts.to_owned());
|
||||
// If we want a leading expression (for ifmtf), parse it here
|
||||
let extra = if leading_expr {
|
||||
let e = Some(p.parse_expr());
|
||||
if !p.eat(&token::COMMA) {
|
||||
self.ecx.span_err(sp, "expected token: `,`");
|
||||
return (e, None);
|
||||
}
|
||||
e
|
||||
} else { None };
|
||||
|
||||
if *p.token == token::EOF {
|
||||
self.ecx.span_err(sp, "ifmt! expects at least one argument");
|
||||
return None;
|
||||
self.ecx.span_err(sp, "requires at least a format string argument");
|
||||
return (extra, None);
|
||||
}
|
||||
let fmtstr = p.parse_expr();
|
||||
let mut named = false;
|
||||
while *p.token != token::EOF {
|
||||
if !p.eat(&token::COMMA) {
|
||||
self.ecx.span_err(sp, "expected token: `,`");
|
||||
return None;
|
||||
return (extra, None);
|
||||
}
|
||||
if named || (token::is_ident(p.token) &&
|
||||
p.look_ahead(1, |t| *t == token::EQ)) {
|
||||
@ -81,14 +93,14 @@ fn parse_args(&mut self, sp: span,
|
||||
self.ecx.span_err(*p.span,
|
||||
"expected ident, positional arguments \
|
||||
cannot follow named arguments");
|
||||
return None;
|
||||
return (extra, None);
|
||||
}
|
||||
_ => {
|
||||
self.ecx.span_err(*p.span,
|
||||
fmt!("expected ident for named \
|
||||
argument, but found `%s`",
|
||||
p.this_token_to_str()));
|
||||
return None;
|
||||
return (extra, None);
|
||||
}
|
||||
};
|
||||
let name = self.ecx.str_of(ident);
|
||||
@ -110,7 +122,7 @@ fn parse_args(&mut self, sp: span,
|
||||
self.arg_types.push(None);
|
||||
}
|
||||
}
|
||||
return Some(fmtstr);
|
||||
return (extra, Some(fmtstr));
|
||||
}
|
||||
|
||||
/// Verifies one piece of a parse string. All errors are not emitted as
|
||||
@ -530,7 +542,7 @@ fn trans_piece(&mut self, piece: &parse::Piece) -> @ast::expr {
|
||||
|
||||
/// Actually builds the expression which the ifmt! block will be expanded
|
||||
/// to
|
||||
fn to_expr(&self) -> @ast::expr {
|
||||
fn to_expr(&self, extra: Option<@ast::expr>, f: &str) -> @ast::expr {
|
||||
let mut lets = ~[];
|
||||
let mut locals = ~[];
|
||||
let mut names = vec::from_fn(self.name_positions.len(), |_| None);
|
||||
@ -596,15 +608,18 @@ fn to_expr(&self) -> @ast::expr {
|
||||
let args = names.move_iter().map(|a| a.unwrap());
|
||||
let mut args = locals.move_iter().chain(args);
|
||||
|
||||
// Next, build up the actual call to the sprintf function.
|
||||
let mut fmt_args = match extra {
|
||||
Some(e) => ~[e], None => ~[]
|
||||
};
|
||||
fmt_args.push(self.ecx.expr_ident(self.fmtsp, static_name));
|
||||
fmt_args.push(self.ecx.expr_vec(self.fmtsp, args.collect()));
|
||||
|
||||
// Next, build up the actual call to the {s,f}printf function.
|
||||
let result = self.ecx.expr_call_global(self.fmtsp, ~[
|
||||
self.ecx.ident_of("std"),
|
||||
self.ecx.ident_of("fmt"),
|
||||
self.ecx.ident_of("sprintf"),
|
||||
], ~[
|
||||
self.ecx.expr_ident(self.fmtsp, static_name),
|
||||
self.ecx.expr_vec(self.fmtsp, args.collect()),
|
||||
]);
|
||||
self.ecx.ident_of(f),
|
||||
], fmt_args);
|
||||
|
||||
// sprintf is unsafe, but we just went through a lot of work to
|
||||
// validate that our call is save, so inject the unsafe block for the
|
||||
@ -682,8 +697,24 @@ fn format_arg(&self, sp: span, arg: Either<uint, @str>,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn expand_syntax_ext(ecx: @ExtCtxt, sp: span,
|
||||
tts: &[ast::token_tree]) -> base::MacResult {
|
||||
pub fn expand_format(ecx: @ExtCtxt, sp: span,
|
||||
tts: &[ast::token_tree]) -> base::MacResult {
|
||||
expand_ifmt(ecx, sp, tts, false, false, "format")
|
||||
}
|
||||
|
||||
pub fn expand_write(ecx: @ExtCtxt, sp: span,
|
||||
tts: &[ast::token_tree]) -> base::MacResult {
|
||||
expand_ifmt(ecx, sp, tts, true, false, "write")
|
||||
}
|
||||
|
||||
pub fn expand_writeln(ecx: @ExtCtxt, sp: span,
|
||||
tts: &[ast::token_tree]) -> base::MacResult {
|
||||
expand_ifmt(ecx, sp, tts, true, true, "write")
|
||||
}
|
||||
|
||||
fn expand_ifmt(ecx: @ExtCtxt, sp: span, tts: &[ast::token_tree],
|
||||
leading_arg: bool, append_newline: bool,
|
||||
function: &str) -> base::MacResult {
|
||||
let mut cx = Context {
|
||||
ecx: ecx,
|
||||
args: ~[],
|
||||
@ -697,13 +728,14 @@ pub fn expand_syntax_ext(ecx: @ExtCtxt, sp: span,
|
||||
method_statics: ~[],
|
||||
fmtsp: sp,
|
||||
};
|
||||
let efmt = match cx.parse_args(sp, tts) {
|
||||
Some(e) => e,
|
||||
None => { return MRExpr(ecx.expr_uint(sp, 2)); }
|
||||
let (extra, efmt) = match cx.parse_args(sp, leading_arg, tts) {
|
||||
(extra, Some(e)) => (extra, e),
|
||||
(_, None) => { return MRExpr(ecx.expr_uint(sp, 2)); }
|
||||
};
|
||||
cx.fmtsp = efmt.span;
|
||||
let fmt = expr_to_str(ecx, efmt,
|
||||
"first argument to ifmt! must be a string literal.");
|
||||
"format argument must be a string literal.");
|
||||
let fmt = if append_newline { fmt + "\n" } else { fmt.to_owned() };
|
||||
|
||||
let mut err = false;
|
||||
do parse::parse_error::cond.trap(|m| {
|
||||
@ -734,5 +766,5 @@ pub fn expand_syntax_ext(ecx: @ExtCtxt, sp: span,
|
||||
}
|
||||
}
|
||||
|
||||
MRExpr(cx.to_expr())
|
||||
MRExpr(cx.to_expr(extra, function))
|
||||
}
|
||||
|
||||
@ -9,66 +9,66 @@
|
||||
// except according to those terms.
|
||||
|
||||
fn main() {
|
||||
// bad arguments to the ifmt! call
|
||||
// bad arguments to the format! call
|
||||
|
||||
ifmt!(); //~ ERROR: expects at least one
|
||||
ifmt!("{}"); //~ ERROR: invalid reference to argument
|
||||
format!(); //~ ERROR: requires at least a format string
|
||||
format!("{}"); //~ ERROR: invalid reference to argument
|
||||
|
||||
ifmt!("{1}", 1); //~ ERROR: invalid reference to argument `1`
|
||||
format!("{1}", 1); //~ ERROR: invalid reference to argument `1`
|
||||
//~^ ERROR: argument never used
|
||||
ifmt!("{foo}"); //~ ERROR: no argument named `foo`
|
||||
format!("{foo}"); //~ ERROR: no argument named `foo`
|
||||
|
||||
ifmt!("{}", 1, 2); //~ ERROR: argument never used
|
||||
ifmt!("{1}", 1, 2); //~ ERROR: argument never used
|
||||
ifmt!("{}", 1, foo=2); //~ ERROR: named argument never used
|
||||
ifmt!("{foo}", 1, foo=2); //~ ERROR: argument never used
|
||||
ifmt!("", foo=2); //~ ERROR: named argument never used
|
||||
format!("{}", 1, 2); //~ ERROR: argument never used
|
||||
format!("{1}", 1, 2); //~ ERROR: argument never used
|
||||
format!("{}", 1, foo=2); //~ ERROR: named argument never used
|
||||
format!("{foo}", 1, foo=2); //~ ERROR: argument never used
|
||||
format!("", foo=2); //~ ERROR: named argument never used
|
||||
|
||||
ifmt!("{0:d} {0:s}", 1); //~ ERROR: redeclared with type `s`
|
||||
ifmt!("{foo:d} {foo:s}", foo=1); //~ ERROR: redeclared with type `s`
|
||||
format!("{0:d} {0:s}", 1); //~ ERROR: redeclared with type `s`
|
||||
format!("{foo:d} {foo:s}", foo=1); //~ ERROR: redeclared with type `s`
|
||||
|
||||
ifmt!("{foo}", foo=1, foo=2); //~ ERROR: duplicate argument
|
||||
ifmt!("#"); //~ ERROR: `#` reference used
|
||||
ifmt!("", foo=1, 2); //~ ERROR: positional arguments cannot follow
|
||||
ifmt!("" 1); //~ ERROR: expected token: `,`
|
||||
ifmt!("", 1 1); //~ ERROR: expected token: `,`
|
||||
format!("{foo}", foo=1, foo=2); //~ ERROR: duplicate argument
|
||||
format!("#"); //~ ERROR: `#` reference used
|
||||
format!("", foo=1, 2); //~ ERROR: positional arguments cannot follow
|
||||
format!("" 1); //~ ERROR: expected token: `,`
|
||||
format!("", 1 1); //~ ERROR: expected token: `,`
|
||||
|
||||
ifmt!("{0, select, a{} a{} other{}}", "a"); //~ ERROR: duplicate selector
|
||||
ifmt!("{0, plural, =1{} =1{} other{}}", 1u); //~ ERROR: duplicate selector
|
||||
ifmt!("{0, plural, one{} one{} other{}}", 1u); //~ ERROR: duplicate selector
|
||||
format!("{0, select, a{} a{} other{}}", "a"); //~ ERROR: duplicate selector
|
||||
format!("{0, plural, =1{} =1{} other{}}", 1u); //~ ERROR: duplicate selector
|
||||
format!("{0, plural, one{} one{} other{}}", 1u); //~ ERROR: duplicate selector
|
||||
|
||||
// bad syntax of the format string
|
||||
|
||||
ifmt!("{"); //~ ERROR: unterminated format string
|
||||
ifmt!("\\ "); //~ ERROR: invalid escape
|
||||
ifmt!("\\"); //~ ERROR: expected an escape
|
||||
format!("{"); //~ ERROR: unterminated format string
|
||||
format!("\\ "); //~ ERROR: invalid escape
|
||||
format!("\\"); //~ ERROR: expected an escape
|
||||
|
||||
ifmt!("{0, }", 1); //~ ERROR: expected method
|
||||
ifmt!("{0, foo}", 1); //~ ERROR: unknown method
|
||||
ifmt!("{0, select}", "a"); //~ ERROR: must be followed by
|
||||
ifmt!("{0, plural}", 1); //~ ERROR: must be followed by
|
||||
format!("{0, }", 1); //~ ERROR: expected method
|
||||
format!("{0, foo}", 1); //~ ERROR: unknown method
|
||||
format!("{0, select}", "a"); //~ ERROR: must be followed by
|
||||
format!("{0, plural}", 1); //~ ERROR: must be followed by
|
||||
|
||||
ifmt!("{0, select, a{{}", 1); //~ ERROR: must be terminated
|
||||
ifmt!("{0, select, {} other{}}", "a"); //~ ERROR: empty selector
|
||||
ifmt!("{0, select, other{} other{}}", "a"); //~ ERROR: multiple `other`
|
||||
ifmt!("{0, plural, offset: other{}}", "a"); //~ ERROR: must be an integer
|
||||
ifmt!("{0, plural, offset 1 other{}}", "a"); //~ ERROR: be followed by `:`
|
||||
ifmt!("{0, plural, =a{} other{}}", "a"); //~ ERROR: followed by an integer
|
||||
ifmt!("{0, plural, a{} other{}}", "a"); //~ ERROR: unexpected plural
|
||||
ifmt!("{0, select, a{}}", "a"); //~ ERROR: must provide an `other`
|
||||
ifmt!("{0, plural, =1{}}", "a"); //~ ERROR: must provide an `other`
|
||||
format!("{0, select, a{{}", 1); //~ ERROR: must be terminated
|
||||
format!("{0, select, {} other{}}", "a"); //~ ERROR: empty selector
|
||||
format!("{0, select, other{} other{}}", "a"); //~ ERROR: multiple `other`
|
||||
format!("{0, plural, offset: other{}}", "a"); //~ ERROR: must be an integer
|
||||
format!("{0, plural, offset 1 other{}}", "a"); //~ ERROR: be followed by `:`
|
||||
format!("{0, plural, =a{} other{}}", "a"); //~ ERROR: followed by an integer
|
||||
format!("{0, plural, a{} other{}}", "a"); //~ ERROR: unexpected plural
|
||||
format!("{0, select, a{}}", "a"); //~ ERROR: must provide an `other`
|
||||
format!("{0, plural, =1{}}", "a"); //~ ERROR: must provide an `other`
|
||||
|
||||
ifmt!("{0, plural, other{{0:s}}}", "a"); //~ ERROR: previously used as
|
||||
ifmt!("{:s} {0, plural, other{}}", "a"); //~ ERROR: argument used to
|
||||
ifmt!("{0, select, other{}} \
|
||||
{0, plural, other{}}", "a");
|
||||
format!("{0, plural, other{{0:s}}}", "a"); //~ ERROR: previously used as
|
||||
format!("{:s} {0, plural, other{}}", "a"); //~ ERROR: argument used to
|
||||
format!("{0, select, other{}} \
|
||||
{0, plural, other{}}", "a");
|
||||
//~^ ERROR: declared with multiple formats
|
||||
|
||||
// It should be illegal to use implicit placement arguments nested inside of
|
||||
// format strings because otherwise the "internal pointer of which argument
|
||||
// is next" would be invalidated if different cases had different numbers of
|
||||
// arguments.
|
||||
ifmt!("{0, select, other{{}}}", "a"); //~ ERROR: cannot use implicit
|
||||
ifmt!("{0, plural, other{{}}}", 1); //~ ERROR: cannot use implicit
|
||||
ifmt!("{0, plural, other{{1:.*d}}}", 1, 2); //~ ERROR: cannot use implicit
|
||||
format!("{0, select, other{{}}}", "a"); //~ ERROR: cannot use implicit
|
||||
format!("{0, plural, other{{}}}", 1); //~ ERROR: cannot use implicit
|
||||
format!("{0, plural, other{{1:.*d}}}", 1, 2); //~ ERROR: cannot use implicit
|
||||
}
|
||||
|
||||
@ -9,6 +9,6 @@
|
||||
// except according to those terms.
|
||||
|
||||
fn main() {
|
||||
ifmt!("{0, plural, other{}}", "a");
|
||||
format!("{0, plural, other{}}", "a");
|
||||
//~^ ERROR: expected uint but found
|
||||
}
|
||||
|
||||
@ -9,6 +9,6 @@
|
||||
// except according to those terms.
|
||||
|
||||
fn main() {
|
||||
ifmt!("{0, select, other{}}", 2);
|
||||
format!("{0, select, other{}}", 2);
|
||||
//~^ ERROR: expected &str but found integral
|
||||
}
|
||||
|
||||
@ -9,6 +9,6 @@
|
||||
// except according to those terms.
|
||||
|
||||
fn main() {
|
||||
ifmt!("{:d}", "3");
|
||||
format!("{:d}", "3");
|
||||
//~^ ERROR: failed to find an implementation of trait std::fmt::Signed
|
||||
}
|
||||
|
||||
@ -9,6 +9,6 @@
|
||||
// except according to those terms.
|
||||
|
||||
fn main() {
|
||||
ifmt!("{:notimplemented}", "3");
|
||||
format!("{:notimplemented}", "3");
|
||||
//~^ ERROR: unknown format trait `notimplemented`
|
||||
}
|
||||
|
||||
@ -21,193 +21,228 @@ impl fmt::Signed for B {
|
||||
fn fmt(_: &B, f: &mut fmt::Formatter) { f.buf.write("adios".as_bytes()); }
|
||||
}
|
||||
|
||||
macro_rules! t(($a:expr, $b:expr) => { assert_eq!($a, $b.to_owned()) })
|
||||
|
||||
pub fn main() {
|
||||
macro_rules! t(($a:expr, $b:expr) => { assert_eq!($a, $b.to_owned()) })
|
||||
|
||||
// Make sure there's a poly formatter that takes anything
|
||||
t!(ifmt!("{:?}", 1), "1");
|
||||
t!(ifmt!("{:?}", A), "{}");
|
||||
t!(ifmt!("{:?}", ()), "()");
|
||||
t!(ifmt!("{:?}", @(~1, "foo")), "@(~1, \"foo\")");
|
||||
t!(format!("{:?}", 1), "1");
|
||||
t!(format!("{:?}", A), "{}");
|
||||
t!(format!("{:?}", ()), "()");
|
||||
t!(format!("{:?}", @(~1, "foo")), "@(~1, \"foo\")");
|
||||
|
||||
// Various edge cases without formats
|
||||
t!(ifmt!(""), "");
|
||||
t!(ifmt!("hello"), "hello");
|
||||
t!(ifmt!("hello \\{"), "hello {");
|
||||
t!(format!(""), "");
|
||||
t!(format!("hello"), "hello");
|
||||
t!(format!("hello \\{"), "hello {");
|
||||
|
||||
// default formatters should work
|
||||
t!(ifmt!("{}", 1i), "1");
|
||||
t!(ifmt!("{}", 1i8), "1");
|
||||
t!(ifmt!("{}", 1i16), "1");
|
||||
t!(ifmt!("{}", 1i32), "1");
|
||||
t!(ifmt!("{}", 1i64), "1");
|
||||
t!(ifmt!("{}", 1u), "1");
|
||||
t!(ifmt!("{}", 1u8), "1");
|
||||
t!(ifmt!("{}", 1u16), "1");
|
||||
t!(ifmt!("{}", 1u32), "1");
|
||||
t!(ifmt!("{}", 1u64), "1");
|
||||
t!(ifmt!("{}", 1.0f), "1");
|
||||
t!(ifmt!("{}", 1.0f32), "1");
|
||||
t!(ifmt!("{}", 1.0f64), "1");
|
||||
t!(ifmt!("{}", "a"), "a");
|
||||
t!(ifmt!("{}", ~"a"), "a");
|
||||
t!(ifmt!("{}", @"a"), "a");
|
||||
t!(ifmt!("{}", false), "false");
|
||||
t!(ifmt!("{}", 'a'), "a");
|
||||
t!(format!("{}", 1i), "1");
|
||||
t!(format!("{}", 1i8), "1");
|
||||
t!(format!("{}", 1i16), "1");
|
||||
t!(format!("{}", 1i32), "1");
|
||||
t!(format!("{}", 1i64), "1");
|
||||
t!(format!("{}", 1u), "1");
|
||||
t!(format!("{}", 1u8), "1");
|
||||
t!(format!("{}", 1u16), "1");
|
||||
t!(format!("{}", 1u32), "1");
|
||||
t!(format!("{}", 1u64), "1");
|
||||
t!(format!("{}", 1.0f), "1");
|
||||
t!(format!("{}", 1.0f32), "1");
|
||||
t!(format!("{}", 1.0f64), "1");
|
||||
t!(format!("{}", "a"), "a");
|
||||
t!(format!("{}", ~"a"), "a");
|
||||
t!(format!("{}", @"a"), "a");
|
||||
t!(format!("{}", false), "false");
|
||||
t!(format!("{}", 'a'), "a");
|
||||
|
||||
// At least exercise all the formats
|
||||
t!(ifmt!("{:b}", true), "true");
|
||||
t!(ifmt!("{:c}", '☃'), "☃");
|
||||
t!(ifmt!("{:d}", 10), "10");
|
||||
t!(ifmt!("{:i}", 10), "10");
|
||||
t!(ifmt!("{:u}", 10u), "10");
|
||||
t!(ifmt!("{:o}", 10u), "12");
|
||||
t!(ifmt!("{:x}", 10u), "a");
|
||||
t!(ifmt!("{:X}", 10u), "A");
|
||||
t!(ifmt!("{:s}", "foo"), "foo");
|
||||
t!(ifmt!("{:s}", ~"foo"), "foo");
|
||||
t!(ifmt!("{:s}", @"foo"), "foo");
|
||||
t!(ifmt!("{:p}", 0x1234 as *int), "0x1234");
|
||||
t!(ifmt!("{:p}", 0x1234 as *mut int), "0x1234");
|
||||
t!(ifmt!("{:d}", A), "aloha");
|
||||
t!(ifmt!("{:d}", B), "adios");
|
||||
t!(ifmt!("foo {:s} ☃☃☃☃☃☃", "bar"), "foo bar ☃☃☃☃☃☃");
|
||||
t!(ifmt!("{1} {0}", 0, 1), "1 0");
|
||||
t!(ifmt!("{foo} {bar}", foo=0, bar=1), "0 1");
|
||||
t!(ifmt!("{foo} {1} {bar} {0}", 0, 1, foo=2, bar=3), "2 1 3 0");
|
||||
t!(ifmt!("{} {0:s}", "a"), "a a");
|
||||
t!(ifmt!("{} {0}", "a"), "a a");
|
||||
t!(format!("{:b}", true), "true");
|
||||
t!(format!("{:c}", '☃'), "☃");
|
||||
t!(format!("{:d}", 10), "10");
|
||||
t!(format!("{:i}", 10), "10");
|
||||
t!(format!("{:u}", 10u), "10");
|
||||
t!(format!("{:o}", 10u), "12");
|
||||
t!(format!("{:x}", 10u), "a");
|
||||
t!(format!("{:X}", 10u), "A");
|
||||
t!(format!("{:s}", "foo"), "foo");
|
||||
t!(format!("{:s}", ~"foo"), "foo");
|
||||
t!(format!("{:s}", @"foo"), "foo");
|
||||
t!(format!("{:p}", 0x1234 as *int), "0x1234");
|
||||
t!(format!("{:p}", 0x1234 as *mut int), "0x1234");
|
||||
t!(format!("{:d}", A), "aloha");
|
||||
t!(format!("{:d}", B), "adios");
|
||||
t!(format!("foo {:s} ☃☃☃☃☃☃", "bar"), "foo bar ☃☃☃☃☃☃");
|
||||
t!(format!("{1} {0}", 0, 1), "1 0");
|
||||
t!(format!("{foo} {bar}", foo=0, bar=1), "0 1");
|
||||
t!(format!("{foo} {1} {bar} {0}", 0, 1, foo=2, bar=3), "2 1 3 0");
|
||||
t!(format!("{} {0:s}", "a"), "a a");
|
||||
t!(format!("{} {0}", "a"), "a a");
|
||||
|
||||
// Methods should probably work
|
||||
t!(ifmt!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 0u), "c0");
|
||||
t!(ifmt!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 1u), "a1");
|
||||
t!(ifmt!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 2u), "b2");
|
||||
t!(ifmt!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 3u), "d3");
|
||||
t!(ifmt!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "a"), "aa");
|
||||
t!(ifmt!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "b"), "bb");
|
||||
t!(ifmt!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "c"), "cc");
|
||||
t!(ifmt!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "d"), "dd");
|
||||
t!(ifmt!("{1, select, a{#{0:s}} other{#{1}}}", "b", "a"), "ab");
|
||||
t!(ifmt!("{1, select, a{#{0}} other{#{1}}}", "c", "b"), "bb");
|
||||
t!(format!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 0u), "c0");
|
||||
t!(format!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 1u), "a1");
|
||||
t!(format!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 2u), "b2");
|
||||
t!(format!("{0, plural, =1{a#} =2{b#} zero{c#} other{d#}}", 3u), "d3");
|
||||
t!(format!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "a"), "aa");
|
||||
t!(format!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "b"), "bb");
|
||||
t!(format!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "c"), "cc");
|
||||
t!(format!("{0, select, a{a#} b{b#} c{c#} other{d#}}", "d"), "dd");
|
||||
t!(format!("{1, select, a{#{0:s}} other{#{1}}}", "b", "a"), "ab");
|
||||
t!(format!("{1, select, a{#{0}} other{#{1}}}", "c", "b"), "bb");
|
||||
|
||||
// Formatting strings and their arguments
|
||||
t!(ifmt!("{:s}", "a"), "a");
|
||||
t!(ifmt!("{:4s}", "a"), "a ");
|
||||
t!(ifmt!("{:>4s}", "a"), " a");
|
||||
t!(ifmt!("{:<4s}", "a"), "a ");
|
||||
t!(ifmt!("{:.4s}", "a"), "a");
|
||||
t!(ifmt!("{:4.4s}", "a"), "a ");
|
||||
t!(ifmt!("{:4.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(ifmt!("{:<4.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(ifmt!("{:>4.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(ifmt!("{:>10.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(ifmt!("{:2.4s}", "aaaaa"), "aaaa");
|
||||
t!(ifmt!("{:2.4s}", "aaaa"), "aaaa");
|
||||
t!(ifmt!("{:2.4s}", "aaa"), "aaa");
|
||||
t!(ifmt!("{:2.4s}", "aa"), "aa");
|
||||
t!(ifmt!("{:2.4s}", "a"), "a ");
|
||||
t!(ifmt!("{:0>2s}", "a"), "0a");
|
||||
t!(ifmt!("{:.*s}", 4, "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(ifmt!("{:.1$s}", "aaaaaaaaaaaaaaaaaa", 4), "aaaa");
|
||||
t!(ifmt!("{:1$s}", "a", 4), "a ");
|
||||
t!(ifmt!("{:-#s}", "a"), "a");
|
||||
t!(ifmt!("{:+#s}", "a"), "a");
|
||||
t!(format!("{:s}", "a"), "a");
|
||||
t!(format!("{:4s}", "a"), "a ");
|
||||
t!(format!("{:>4s}", "a"), " a");
|
||||
t!(format!("{:<4s}", "a"), "a ");
|
||||
t!(format!("{:.4s}", "a"), "a");
|
||||
t!(format!("{:4.4s}", "a"), "a ");
|
||||
t!(format!("{:4.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(format!("{:<4.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(format!("{:>4.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(format!("{:>10.4s}", "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(format!("{:2.4s}", "aaaaa"), "aaaa");
|
||||
t!(format!("{:2.4s}", "aaaa"), "aaaa");
|
||||
t!(format!("{:2.4s}", "aaa"), "aaa");
|
||||
t!(format!("{:2.4s}", "aa"), "aa");
|
||||
t!(format!("{:2.4s}", "a"), "a ");
|
||||
t!(format!("{:0>2s}", "a"), "0a");
|
||||
t!(format!("{:.*s}", 4, "aaaaaaaaaaaaaaaaaa"), "aaaa");
|
||||
t!(format!("{:.1$s}", "aaaaaaaaaaaaaaaaaa", 4), "aaaa");
|
||||
t!(format!("{:1$s}", "a", 4), "a ");
|
||||
t!(format!("{:-#s}", "a"), "a");
|
||||
t!(format!("{:+#s}", "a"), "a");
|
||||
|
||||
// Formatting integers should select the right implementation based off the
|
||||
// type of the argument. Also, hex/octal/binary should be defined for
|
||||
// integers, but they shouldn't emit the negative sign.
|
||||
t!(ifmt!("{:d}", -1i), "-1");
|
||||
t!(ifmt!("{:d}", -1i8), "-1");
|
||||
t!(ifmt!("{:d}", -1i16), "-1");
|
||||
t!(ifmt!("{:d}", -1i32), "-1");
|
||||
t!(ifmt!("{:d}", -1i64), "-1");
|
||||
t!(ifmt!("{:t}", 1i), "1");
|
||||
t!(ifmt!("{:t}", 1i8), "1");
|
||||
t!(ifmt!("{:t}", 1i16), "1");
|
||||
t!(ifmt!("{:t}", 1i32), "1");
|
||||
t!(ifmt!("{:t}", 1i64), "1");
|
||||
t!(ifmt!("{:x}", 1i), "1");
|
||||
t!(ifmt!("{:x}", 1i8), "1");
|
||||
t!(ifmt!("{:x}", 1i16), "1");
|
||||
t!(ifmt!("{:x}", 1i32), "1");
|
||||
t!(ifmt!("{:x}", 1i64), "1");
|
||||
t!(ifmt!("{:X}", 1i), "1");
|
||||
t!(ifmt!("{:X}", 1i8), "1");
|
||||
t!(ifmt!("{:X}", 1i16), "1");
|
||||
t!(ifmt!("{:X}", 1i32), "1");
|
||||
t!(ifmt!("{:X}", 1i64), "1");
|
||||
t!(ifmt!("{:o}", 1i), "1");
|
||||
t!(ifmt!("{:o}", 1i8), "1");
|
||||
t!(ifmt!("{:o}", 1i16), "1");
|
||||
t!(ifmt!("{:o}", 1i32), "1");
|
||||
t!(ifmt!("{:o}", 1i64), "1");
|
||||
t!(format!("{:d}", -1i), "-1");
|
||||
t!(format!("{:d}", -1i8), "-1");
|
||||
t!(format!("{:d}", -1i16), "-1");
|
||||
t!(format!("{:d}", -1i32), "-1");
|
||||
t!(format!("{:d}", -1i64), "-1");
|
||||
t!(format!("{:t}", 1i), "1");
|
||||
t!(format!("{:t}", 1i8), "1");
|
||||
t!(format!("{:t}", 1i16), "1");
|
||||
t!(format!("{:t}", 1i32), "1");
|
||||
t!(format!("{:t}", 1i64), "1");
|
||||
t!(format!("{:x}", 1i), "1");
|
||||
t!(format!("{:x}", 1i8), "1");
|
||||
t!(format!("{:x}", 1i16), "1");
|
||||
t!(format!("{:x}", 1i32), "1");
|
||||
t!(format!("{:x}", 1i64), "1");
|
||||
t!(format!("{:X}", 1i), "1");
|
||||
t!(format!("{:X}", 1i8), "1");
|
||||
t!(format!("{:X}", 1i16), "1");
|
||||
t!(format!("{:X}", 1i32), "1");
|
||||
t!(format!("{:X}", 1i64), "1");
|
||||
t!(format!("{:o}", 1i), "1");
|
||||
t!(format!("{:o}", 1i8), "1");
|
||||
t!(format!("{:o}", 1i16), "1");
|
||||
t!(format!("{:o}", 1i32), "1");
|
||||
t!(format!("{:o}", 1i64), "1");
|
||||
|
||||
t!(ifmt!("{:u}", 1u), "1");
|
||||
t!(ifmt!("{:u}", 1u8), "1");
|
||||
t!(ifmt!("{:u}", 1u16), "1");
|
||||
t!(ifmt!("{:u}", 1u32), "1");
|
||||
t!(ifmt!("{:u}", 1u64), "1");
|
||||
t!(ifmt!("{:t}", 1u), "1");
|
||||
t!(ifmt!("{:t}", 1u8), "1");
|
||||
t!(ifmt!("{:t}", 1u16), "1");
|
||||
t!(ifmt!("{:t}", 1u32), "1");
|
||||
t!(ifmt!("{:t}", 1u64), "1");
|
||||
t!(ifmt!("{:x}", 1u), "1");
|
||||
t!(ifmt!("{:x}", 1u8), "1");
|
||||
t!(ifmt!("{:x}", 1u16), "1");
|
||||
t!(ifmt!("{:x}", 1u32), "1");
|
||||
t!(ifmt!("{:x}", 1u64), "1");
|
||||
t!(ifmt!("{:X}", 1u), "1");
|
||||
t!(ifmt!("{:X}", 1u8), "1");
|
||||
t!(ifmt!("{:X}", 1u16), "1");
|
||||
t!(ifmt!("{:X}", 1u32), "1");
|
||||
t!(ifmt!("{:X}", 1u64), "1");
|
||||
t!(ifmt!("{:o}", 1u), "1");
|
||||
t!(ifmt!("{:o}", 1u8), "1");
|
||||
t!(ifmt!("{:o}", 1u16), "1");
|
||||
t!(ifmt!("{:o}", 1u32), "1");
|
||||
t!(ifmt!("{:o}", 1u64), "1");
|
||||
t!(format!("{:u}", 1u), "1");
|
||||
t!(format!("{:u}", 1u8), "1");
|
||||
t!(format!("{:u}", 1u16), "1");
|
||||
t!(format!("{:u}", 1u32), "1");
|
||||
t!(format!("{:u}", 1u64), "1");
|
||||
t!(format!("{:t}", 1u), "1");
|
||||
t!(format!("{:t}", 1u8), "1");
|
||||
t!(format!("{:t}", 1u16), "1");
|
||||
t!(format!("{:t}", 1u32), "1");
|
||||
t!(format!("{:t}", 1u64), "1");
|
||||
t!(format!("{:x}", 1u), "1");
|
||||
t!(format!("{:x}", 1u8), "1");
|
||||
t!(format!("{:x}", 1u16), "1");
|
||||
t!(format!("{:x}", 1u32), "1");
|
||||
t!(format!("{:x}", 1u64), "1");
|
||||
t!(format!("{:X}", 1u), "1");
|
||||
t!(format!("{:X}", 1u8), "1");
|
||||
t!(format!("{:X}", 1u16), "1");
|
||||
t!(format!("{:X}", 1u32), "1");
|
||||
t!(format!("{:X}", 1u64), "1");
|
||||
t!(format!("{:o}", 1u), "1");
|
||||
t!(format!("{:o}", 1u8), "1");
|
||||
t!(format!("{:o}", 1u16), "1");
|
||||
t!(format!("{:o}", 1u32), "1");
|
||||
t!(format!("{:o}", 1u64), "1");
|
||||
|
||||
// Test the flags for formatting integers
|
||||
t!(ifmt!("{:3d}", 1), " 1");
|
||||
t!(ifmt!("{:>3d}", 1), " 1");
|
||||
t!(ifmt!("{:>+3d}", 1), " +1");
|
||||
t!(ifmt!("{:<3d}", 1), "1 ");
|
||||
t!(ifmt!("{:#d}", 1), "1");
|
||||
t!(ifmt!("{:#x}", 10), "0xa");
|
||||
t!(ifmt!("{:#X}", 10), "0xA");
|
||||
t!(ifmt!("{:#5x}", 10), " 0xa");
|
||||
t!(ifmt!("{:#o}", 10), "0o12");
|
||||
t!(ifmt!("{:08x}", 10), "0000000a");
|
||||
t!(ifmt!("{:8x}", 10), " a");
|
||||
t!(ifmt!("{:<8x}", 10), "a ");
|
||||
t!(ifmt!("{:>8x}", 10), " a");
|
||||
t!(ifmt!("{:#08x}", 10), "0x00000a");
|
||||
t!(ifmt!("{:08d}", -10), "-0000010");
|
||||
t!(ifmt!("{:x}", -1u8), "ff");
|
||||
t!(ifmt!("{:X}", -1u8), "FF");
|
||||
t!(ifmt!("{:t}", -1u8), "11111111");
|
||||
t!(ifmt!("{:o}", -1u8), "377");
|
||||
t!(ifmt!("{:#x}", -1u8), "0xff");
|
||||
t!(ifmt!("{:#X}", -1u8), "0xFF");
|
||||
t!(ifmt!("{:#t}", -1u8), "0b11111111");
|
||||
t!(ifmt!("{:#o}", -1u8), "0o377");
|
||||
t!(format!("{:3d}", 1), " 1");
|
||||
t!(format!("{:>3d}", 1), " 1");
|
||||
t!(format!("{:>+3d}", 1), " +1");
|
||||
t!(format!("{:<3d}", 1), "1 ");
|
||||
t!(format!("{:#d}", 1), "1");
|
||||
t!(format!("{:#x}", 10), "0xa");
|
||||
t!(format!("{:#X}", 10), "0xA");
|
||||
t!(format!("{:#5x}", 10), " 0xa");
|
||||
t!(format!("{:#o}", 10), "0o12");
|
||||
t!(format!("{:08x}", 10), "0000000a");
|
||||
t!(format!("{:8x}", 10), " a");
|
||||
t!(format!("{:<8x}", 10), "a ");
|
||||
t!(format!("{:>8x}", 10), " a");
|
||||
t!(format!("{:#08x}", 10), "0x00000a");
|
||||
t!(format!("{:08d}", -10), "-0000010");
|
||||
t!(format!("{:x}", -1u8), "ff");
|
||||
t!(format!("{:X}", -1u8), "FF");
|
||||
t!(format!("{:t}", -1u8), "11111111");
|
||||
t!(format!("{:o}", -1u8), "377");
|
||||
t!(format!("{:#x}", -1u8), "0xff");
|
||||
t!(format!("{:#X}", -1u8), "0xFF");
|
||||
t!(format!("{:#t}", -1u8), "0b11111111");
|
||||
t!(format!("{:#o}", -1u8), "0o377");
|
||||
|
||||
// Signed combinations
|
||||
t!(ifmt!("{:+5d}", 1), " +1");
|
||||
t!(ifmt!("{:+5d}", -1), " -1");
|
||||
t!(ifmt!("{:05d}", 1), "00001");
|
||||
t!(ifmt!("{:05d}", -1), "-0001");
|
||||
t!(ifmt!("{:+05d}", 1), "+0001");
|
||||
t!(ifmt!("{:+05d}", -1), "-0001");
|
||||
t!(format!("{:+5d}", 1), " +1");
|
||||
t!(format!("{:+5d}", -1), " -1");
|
||||
t!(format!("{:05d}", 1), "00001");
|
||||
t!(format!("{:05d}", -1), "-0001");
|
||||
t!(format!("{:+05d}", 1), "+0001");
|
||||
t!(format!("{:+05d}", -1), "-0001");
|
||||
|
||||
// Some float stuff
|
||||
t!(ifmt!("{:f}", 1.0f), "1");
|
||||
t!(ifmt!("{:f}", 1.0f32), "1");
|
||||
t!(ifmt!("{:f}", 1.0f64), "1");
|
||||
t!(ifmt!("{:.3f}", 1.0f), "1.000");
|
||||
t!(ifmt!("{:10.3f}", 1.0f), " 1.000");
|
||||
t!(ifmt!("{:+10.3f}", 1.0f), " +1.000");
|
||||
t!(ifmt!("{:+10.3f}", -1.0f), " -1.000");
|
||||
t!(format!("{:f}", 1.0f), "1");
|
||||
t!(format!("{:f}", 1.0f32), "1");
|
||||
t!(format!("{:f}", 1.0f64), "1");
|
||||
t!(format!("{:.3f}", 1.0f), "1.000");
|
||||
t!(format!("{:10.3f}", 1.0f), " 1.000");
|
||||
t!(format!("{:+10.3f}", 1.0f), " +1.000");
|
||||
t!(format!("{:+10.3f}", -1.0f), " -1.000");
|
||||
|
||||
test_write();
|
||||
test_print();
|
||||
}
|
||||
|
||||
// Basic test to make sure that we can invoke the `write!` macro with an
|
||||
// io::Writer instance.
|
||||
fn test_write() {
|
||||
use std::rt::io::Decorator;
|
||||
use std::rt::io::mem::MemWriter;
|
||||
use std::rt::io;
|
||||
use std::str;
|
||||
|
||||
let mut buf = MemWriter::new();
|
||||
write!(&mut buf as &mut io::Writer, "{}", 3);
|
||||
{
|
||||
let w = &mut buf as &mut io::Writer;
|
||||
write!(w, "{foo}", foo=4);
|
||||
write!(w, "{:s}", "hello");
|
||||
writeln!(w, "{}", "line");
|
||||
writeln!(w, "{foo}", foo="bar");
|
||||
}
|
||||
|
||||
let s = str::from_bytes_owned(buf.inner());
|
||||
t!(s, "34helloline\nbar\n");
|
||||
}
|
||||
|
||||
// Just make sure that the macros are defined, there's not really a lot that we
|
||||
// can do with them just yet (to test the output)
|
||||
fn test_print() {
|
||||
print!("hi");
|
||||
print!("{:?}", ~[0u8]);
|
||||
println!("hello");
|
||||
println!("this is a {}", "test");
|
||||
println!("{foo}", foo="bar");
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user