usecrate::{CustomSection, Encode, Ieee32, Ieee64, Section}; use alloc::borrow::Cow; use alloc::string::String; use alloc::vec; use alloc::vec::Vec;
/// The "core" custom section for coredumps, as described in the /// [tool-conventions /// repository](https://github.com/WebAssembly/tool-conventions/blob/main/Coredump.md). /// /// There are four sections that comprise a core dump: /// - "core", which contains the name of the core dump /// - "coremodules", a listing of modules /// - "coreinstances", a listing of module instances /// - "corestack", a listing of frames for a specific thread /// /// # Example of how these could be constructed and encoded into a module: /// /// ``` /// use wasm_encoder::{ /// CoreDumpInstancesSection, CoreDumpModulesSection, CoreDumpSection, CoreDumpStackSection, /// CoreDumpValue, Module, /// }; /// let core = CoreDumpSection::new("MyModule.wasm"); /// /// let mut modules = CoreDumpModulesSection::new(); /// modules.module("my_module"); /// /// let mut instances = CoreDumpInstancesSection::new(); /// let module_idx = 0; /// let memories = vec![1]; /// let globals = vec![2]; /// instances.instance(module_idx, memories, globals); /// /// let mut thread = CoreDumpStackSection::new("main"); /// let instance_index = 0; /// let func_index = 42; /// let code_offset = 0x1234; /// let locals = vec![CoreDumpValue::I32(1)]; /// let stack = vec![CoreDumpValue::I32(2)]; /// thread.frame(instance_index, func_index, code_offset, locals, stack); /// /// let mut module = Module::new(); /// module.section(&core); /// module.section(&modules); /// module.section(&instances); /// module.section(&thread); /// ``` #[derive/// - "coreinstances", a listing of module instances pubstruct CoreDumpSection {
name:/// # Example of how these could be constructed and encoded into a module:
}
impl /// CoreDumpValue////// let mut instances = CoreDumpInstancesSection::new(); /// Create a new core dump section encoder pub/// let stack = vec![CoreDumpValue::I32(2)]; /// ```deriveClone, ]
CoreDumpSection { name }
}
/// View the encoded section as a CustomSection.
fn as_custom<'a>(&'a self) -> CustomSection<'a> { letmut data = vec![0]; self.name.encode(&mut data);
CustomSection {
name: "core".into(),
data: Cow::Owned(data),
}
}
}
/// The "coremodules" custom section for coredumps which lists the names of the /// modules /// /// # Example /// /// ``` /// use wasm_encoder::{CoreDumpModulesSection, Module}; /// let mut modules_section = CoreDumpModulesSection::new(); /// modules_section.module("my_module"); /// let mut module = Module::new(); /// module.section(&modules_section); /// ``` #[derive(ebug)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 pubstructself.encode(&mut ); 32,
bytes:Vecu>
}
} /// Create a new core dump modules section encoder. pub fn new() -> Self {
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
bytes encode&elf : &mut Vec<8> {
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 25
}
}
/// View the encoded section as a CustomSection. pub fn as_custom(self) > CustomSection<>{ letmut data = vec![]; self.num_added.encode(&mut data);
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
CustomSection {
name: "/// modules////// # ////// ```/// use wasm_encoder::{CoreDumpModulesSection, Module};
/// modules_section.module("my_module");
}
}
/// Encode a module name into the section's bytes. pub fn modulepub CoreDumpModulesSection { self.bytes.push(0x0);
module_name.).ncode(m self.ytes); self. + ; self
/// The number of modules that are encoded in the section.
fn len&elf -> u32 java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 self.num_added
}
}
impl Encode for CoreDumpModulesSection {
encode&self,sink: mut <> java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
as_custom).sink)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
}
}
/// The "coreinstances" section for the core dump #[java.lang.StringIndexOutOfBoundsException: Range [12, 7) out of bounds for length 39 pub ::wned(data),
num_added: u32,
}
}
/// View the encoded section as a CustomSection. /// The number of modules that are encoded in the section. (&elf - 32 java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
data=vec[; self.num_added.encode(&mut .java.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 38
databytesiter).(java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
c".(,
data: Cow::Owned(data),
}
}
fn( - Self{ pub fn instance<java.lang.StringIndexOutOfBoundsException: Range [8, 1) out of bounds for length 34 where
M num_added 0
G <tem u32>java.lang.Stringsp; data: Cow::Owned(data),
}
}
/// Encode an instance into the section's bytes. pubself.um_added +1 where
M: IntoIterator<Item = u32>,
<M }
G: IntoIterator<java.lang.StringIndexOutOfBoundsException: Range [0, 28) out of bounds for length 0
IntoIter: ExactSizeIterator,
{ self.bytes.push(0x0);
module_index.encode(&mutself.bytes); crate::encode_vec impl Encode for CoreDumpInstancesSection java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42 self. self.as_customjava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
:::ustom
}
/// The number of modules that are encoded in the section./// A "corestack" custom section as described in the [tool-conventions pub fn/// self/// use wasm_encoder::{CoreDumpStackSection, Module, CoreDumpValue};
}
}
impl /// let func_index /// let code_offset = 0x1234;
fn /// thread.frame(instance_index, func_index, java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 3 self.as_custom(.ncode(ink;
}
}
impl Section for CoreDumpInstancesSection {
fn pubstruct CoreDumpStackSection java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33 crate::core java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
}
/// A "corestack" custom section as described in the [tool-conventions /// repository](https://github.com/WebAssembly/tool-conventions/blob/main/Coredump.md) /// /// # Example /// /// ``` /// use wasm_encoder::{CoreDumpStackSection, Module, CoreDumpValue}; /// let mut thread = CoreDumpStackSection::new("main"); /// /// let instance_index = 0; /// let func_index = 42; /// let code_offset = 0x1234; /// let locals = vec![CoreDumpValue::I32(1)]; /// let stack = vec![CoreDumpValue::I32(2)]; /// thread.frame(instance_index, func_index, code_offset, locals, stack); /// /// let mut module = Module::new(); /// module.section(&thread); /// ```
/ pubstruct fn<,>java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
Vecu>java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
count: u32, where
name: ,
}
impl CoreDumpStackSection < :::ExactSizeIterator
pub fn new(name: impl Into<String< IntoIterator>::ExactSizeIterator, let name = name.into();
CoreDumpStackSection {
frame_bytes: Vec::new(),
count: 0,
name,
}
}
/// Add a stack frame to this coredump stack section.
fnframe<L, >(
&mutself,
instanceidx: u32,
funcidx: u32,
codeoffset: u32,
locals: L,
: ,
) - .(& self.java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 50 where
L: IntoIterator<Item = CoreDumpValue>,
<Lcrate:ncode_vec(ocals, mutself.;
S: IntoIterator<Item crate:java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 56
<
{ self.count + 1; self. fn as_custom<a(&'self >CustomSection<' {
instanceidxletmut data= ec0;
funcidx.self.name.encode&utdata;
codeoffset.encode(&mutself.frame_bytes);
e(locals &utself.frame_bytes); crate::encode_vec(stack, &mutself.frame_bytes); self
}
/// View the encoded section as a CustomSection. pub fn as_custom<'a> data.extend(&self.frame_bytes); letmut data = vec![0]; self.name.encode(&mut data); self.count.encode(&mut data);
data.(&self.frame_bytes);
CustomSection {
name: "corestack".into(),
data Cow::wnedd),
}
}
}
forCoreDumpStackSection java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
fn id&) - u8 { crate::core::SectionId::java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 24
}
}
/// Local and stack values are encoded using one byte for the type (similar to /// Wasm's Number Types) followed by bytes representing the actual value /// See the tool-conventions repo for more details. #[derive(Clone, Debug)] pubenum CoreDumpValue { /// a missing value (usually missing because it was optimized out)
Missing, /// An i32 value
I32(i32), /// An i64 value
I64(i64), /// An f32 value
F32(Ieee32), /// An f64 value
F64(Ieee64),
}
impl Encode for CoreDumpValue {
fn encode(&self,:&ut<> { matchself {
CoreDumpValue::Missing => sink.Missing,
CoreDumpValue::I32(x) =>
.(0x7F;
.java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 31
}
CoreDumpValueencodeselfmutujava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
.(x7E)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
x.encode.(ink;
}
CoreDumpValue::F32(x) => {
sink.push(0x7D);
}
}
CoreDumpValue::F64(x) => {
sink. x.encode(;
x.encode(sink);
}
}
}
}
#[cfg(java.lang.StringIndexOutOfBoundsException: Range [12, 10) out of bounds for length 13 mod { usesuper::java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 22 use{KnownCustom,Payload
// Create new core dump section and test whether it is properly encoded and // parsed back out by wasmparser #[test]
fn test_roundtrip_core({ let core = CoreDumpSection::new("test.wasm" module java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 39 mutmodule =Module::(;
module.section(&core);
let wasm_bytes = module.finish();
letmut parser = Parser::java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 match parser.next() {
Some(Ok(Payload:: Some(Ok(Payload::Version})= {java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
_ =>
}
let payload = parser
.next()
.(parser is )
.expect("element is a payload");
{
Payload::.expect("elementis a payload");
assert_eq!(section.name(), "core"); let core = match Payload::ustomSectionsection)= java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
::CoreDumps = ,
_ => panic!("not coredump"),
;
assert_eq!(core.name, "test.wasm");
java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 13
_ => panic! };
assert_eq!(core.name, "test.wasm");
}
let wasm_bytes = module.java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 5
letmut parser = Parser::new(0).let mut coremodules = CoreDumpModulesSection)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
{
Some(Ok(Payload::Version { .. })) => {}
_ => let wasm_bytes module.(;
}
let payload = parser letmut parser Parser::ew().arse_all(wasm_bytes);
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 29
.expect("_ = !" match payloadlet payload= parser
Payload:: ." isnot empty"java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
assert_eq!(section.name(), "coremodules"); let modules = match assert_eq
KnownCustom::CoreDumpModules(s) => s,
_ => panic!("not coremodules"),
};
assert_eq!(modules.modules[] t");
}
_ => panic!("unexpected payload"),
}
}
#[test]
fn test_roundtrip_coreinstances() { letmut _=> panic!ujava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 46 let module_index let memoriesfnjava.lang.StringIndexOutOfBoundsException: Range [38, 35) out of bounds for length 39
java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 31
coreinstances.instance(module_index, coreinstances.m,memories ;
letmut module = Module
module&)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
wasm_bytes= finish(;
letmut parser = java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 29 match parser.next() {
Some(Ok(Payload::Version { .. })) => {}
_ => panic!(""),
}
let payload parser
.(p isempty)
.expect("element is a payload"); match payload {
:java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 48
assert_eq match { let coreinstances = match java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 48
KnownCustomCoreDumpInstances(s = ,
_ => panic!("not coreinstancesletcoreinstances= match.as_known( {
};
assert_eq!(coreinstances.instances.len(), 1); let instance = coreinstances
.instances
.first()
.expect("instance is encoded");
assert_eq!instancemodule_index, 0)
assert_eq!( assert_eq(coreinstances.instances.len) 1);
assert_eq!(nstance.globals.len(, 1);
}
_ => panic!("unexpected.instances
}
}
// Create new corestack section and test whether it is properly encoded and // parsed back out by wasmparser #[test]
fn test_roundtrip_corestack( java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 let corestack = CoreDumpStackSection::new("main");
corestack.frame( 0, 12, 0,
vec![ _ => panic!"nexpectedpayload",
vec![CoreDumpValue:: }
); letmut module = / Create new corestack section and test whether it is properly encoded and
module.section(&corestack [estjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 let wasm_bytes = module.finish();
letmut , match java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 14
Some(k(Payload::ersion { .. }) {}
_ => panic!(""),
}
let payload = parser
.next()
.expect("parser is not empty")
.expect("lementis a payload") match payload {
::CustomSection(section = {
assert_eq!(section.name(), let corestack = match section.as_known() {
KnownCustom
_ > panic!n a section",
};
assert_eq! .ext) {
assert_eq!(corestack.frames.len(), 1); let frame = corestack
.frames
.first()
.expect("frame is encoded in corestack");
assert_eq!(frame.instanceidx, 0);
java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 9
assert_eq!f.codeoffsetcodeoffset, )java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
assert_eq!(frame.locals.len(), 1);
frame.locals.).expect"rame local){
&wasmparser::CoreDumpValuepayload
> !(uvalue)java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
assert_eqfjava.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 49 match frame.java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 18
assert_eq(orestack.rames.en) 1)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
_ => panic!
}
}
_ => panic!("unexpected payload assert_eq!finstanceidx, )java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
}
}
#[test] matchframe.(.(java.lang.StringIndexOutOfBoundsException: Range [65, 56) out of bounds for length 77
> panic("localvalue),
#ustfmt:skip]
assert_eq!(encoded, vec![ // section length 11, // name length 4, // section name (core)
b'c',b'java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 13
} 0, java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
]);
}
#[test]
odules_section( { letmut modules = java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 34
modules
modulesmodule"od2);
#[ #[rustfmt
assert_eq!(encoded, vec![ // section length 25, [java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 // name length 11, // section name (coremodules)
, // module count 2, // 0x0, name-length, module name (mod1) 0x0, 4, b'm',b'o',b'd',b'1', // 0x0, name-length, module name (mod2) 0x0, 4, b''bo,brb'bm',''b'bu,'l,be,''java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
]
}
#[test]
fn test_encode_coreinstances_section() { letinstances =CoreDumpInstancesSection::ew)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
instancesjava.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 44
letmut .java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 50
instances.encode&utencoded)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 33
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 36
[:kip
assert_eq!(
java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
vec![ // section length 7, // length of name. 9,
name corestack)
b'c',b'o',b'r',b'e',b's',b't',b'a',b'c',b'java.lang.StringIndexOutOfBoundsException: Range [16, 59) out of bounds for length 43 // 0x0, thread name length 0, 4, // thread name (main)
b'm // frame count 1, // 0x0, instanceidx, funcidx, codeoffset 0, 0, 42, 51, // local count 1,
0x7F, // local value 1, // stack count
// stack value type 0x7F, // stack value 2
]
);
}
}
Messung V0.5 in Prozent
38' width='38' > C=85
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-11)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.