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Introduce hex/string printing in runtime.

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This commit is contained in:
Gav
2018-01-27 13:42:40 +01:00
parent ace1387076
commit d97520c7f0
10 changed files with 34 additions and 12 deletions
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substrate/wasm-runtime/support/src/lib.rs
+12 -3
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@@ -28,7 +28,7 @@ extern crate pwasm_alloc;
#[no_mangle]
pub extern fn panic_fmt(_fmt: ::core::fmt::Arguments, _file: &'static str, _line: u32, _col: u32) {
unsafe {
ext_print(_file.as_ptr() as *const u8, _file.len() as u32);
ext_print_utf8(_file.as_ptr() as *const u8, _file.len() as u32);
ext_print_num(_line as u64);
ext_print_num(_col as u64);
::core::intrinsics::abort()
@@ -36,7 +36,8 @@ pub extern fn panic_fmt(_fmt: ::core::fmt::Arguments, _file: &'static str, _line
}
extern "C" {
fn ext_print(utf8_data: *const u8, utf8_len: u32);
fn ext_print_utf8(utf8_data: *const u8, utf8_len: u32);
fn ext_print_hex(data: *const u8, len: u32);
fn ext_print_num(value: u64);
fn ext_set_storage(key_data: *const u8, key_len: u32, value_data: *const u8, value_len: u32);
fn ext_get_allocated_storage(key_data: *const u8, key_len: u32, written_out: *mut u32) -> *mut u8;
@@ -142,7 +143,15 @@ pub trait Printable {
impl<'a> Printable for &'a [u8] {
fn print(self) {
unsafe {
ext_print(self.as_ptr(), self.len() as u32);
ext_print_hex(self.as_ptr(), self.len() as u32);
}
}
}
impl<'a> Printable for &'a str {
fn print(self) {
unsafe {
ext_print_utf8(self.as_ptr() as *const u8, self.len() as u32);
}
}
}