Package ai.tegmentum.webassembly4j.runtime.marshal

Class CanonicalABI

java.lang.Object

ai.tegmentum.webassembly4j.runtime.marshal.CanonicalABI

public final class CanonicalABI
extends Object

Static utilities for Component Model Canonical ABI layout calculations.

Method Summary

Modifier and Type	Method	Description
static int	alignTo(int offset, int alignment)	Aligns an offset up to the given alignment boundary.
static int[]	fieldOffsets(TypeLayout... fields)	Computes the byte offset of each field in a record.
static int	recordAlignment(TypeLayout... fields)	Computes the alignment of a record, which is the maximum alignment of its fields.
static int	recordSize(TypeLayout... fields)	Computes the total size of a record with the given field layouts, including padding for alignment.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

alignTo

public static int alignTo(int offset,
 int alignment)

Aligns an offset up to the given alignment boundary.

Parameters:

offset - the current offset

alignment - the required alignment (must be a power of 2)

Returns:

the aligned offset

recordSize

public static int recordSize(TypeLayout... fields)

Computes the total size of a record with the given field layouts, including padding for alignment.

Parameters:

fields - the field layouts in order

Returns:

the total record size in bytes (padded to record alignment)

fieldOffsets

public static int[] fieldOffsets(TypeLayout... fields)

Computes the byte offset of each field in a record.

Parameters:

fields - the field layouts in order

Returns:

an array of byte offsets, one per field

recordAlignment

public static int recordAlignment(TypeLayout... fields)

Computes the alignment of a record, which is the maximum alignment of its fields.

Parameters:

fields - the field layouts

Returns:

the record alignment in bytes