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DataSegmentTracker

Struct DataSegmentTracker 

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pub struct DataSegmentTracker {
Show 23 fields pub true_ptr: u32, pub true_len: u32, pub false_ptr: u32, pub false_len: u32, pub nil_ptr: u32, pub nil_len: u32, pub value_ptr: u32, pub value_len: u32, pub gas_exhausted_ptr: u32, pub gas_exhausted_len: u32, pub div_by_zero_ptr: u32, pub div_by_zero_len: u32, pub nan_ptr: u32, pub nan_len: u32, pub assert_failed_ptr: u32, pub assert_failed_len: u32, pub invariant_failed_ptr: u32, pub invariant_failed_len: u32, pub unwrap_failed_ptr: u32, pub unwrap_failed_len: u32, pub oom_ptr: u32, pub oom_len: u32, pub next_offset: u32,
}
Expand description

Tracks data-segment offsets for well-known constant strings.

Built during module assembly (compiler.rs) and passed to runtime helpers that need to reference string constants (e.g., val_to_string).

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§true_ptr: u32§true_len: u32§false_ptr: u32§false_len: u32§nil_ptr: u32§nil_len: u32§value_ptr: u32§value_len: u32§gas_exhausted_ptr: u32§gas_exhausted_len: u32§div_by_zero_ptr: u32§div_by_zero_len: u32§nan_ptr: u32§nan_len: u32§assert_failed_ptr: u32§assert_failed_len: u32§invariant_failed_ptr: u32§invariant_failed_len: u32§unwrap_failed_ptr: u32§unwrap_failed_len: u32§oom_ptr: u32§oom_len: u32§next_offset: u32

Next free offset in the data segment.

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impl DataSegmentTracker

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pub fn clone_tracker(&self) -> DataSegmentTrackerClone

Create a clonable snapshot of this tracker.

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impl DataSegmentTracker

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pub fn new() -> Self

Build the tracker, interning all well-known strings starting at offset 0.

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pub fn data_bytes(&self) -> Vec<u8>

The raw bytes for the data segment — all well-known strings concatenated.

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pub fn intern_string(&mut self, s: &str) -> (u32, u32)

Intern a user string literal and return (offset, length). The caller must also append the bytes to the data segment.

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impl Default for DataSegmentTracker

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.