Package com.dylibso.chicory.wasm

Class Parser

java.lang.Object

com.dylibso.chicory.wasm.Parser

public final class Parser
extends Object

Parser for Web Assembly binaries.

Field Summary

Fields

Modifier and Type	Field	Description
static long	MAX_SIGNED_INT
static long	MAX_SIGNED_LONG
static long	MAX_UNSIGNED_INT
static long	MIN_SIGNED_INT
static long	MIN_SIGNED_LONG
static long	MIN_UNSIGNED_INT

Constructor Summary

Constructors

Constructor	Description
Parser(Logger logger)
Parser(Logger logger, BitSet includeSections)
Parser(Logger logger, BitSet includeSections, Map<String,Function<byte[],CustomSection>> customParsers)

Method Summary

Modifier and Type	Method	Description
void	includeSection(int sectionId)
Module	parseModule(InputStream in)
static long	readFloat32(ByteBuffer buffer)	Read a F32 from the buffer which fits neatly into a long.
static long	readFloat64(ByteBuffer buffer)	Read a F64 from the buffer which fits neatly into a long.
static String	readName(ByteBuffer buffer)	Read a symbol name from the buffer as UTF-8 String.
static String	readName(ByteBuffer buffer, boolean checkMalformed)
static long	readVarSInt32(ByteBuffer buffer)	Read a signed I32 from the buffer.
static long	readVarSInt64(ByteBuffer buffer)	Read a signed I64 from the buffer which fits neatly into a long.
static long	readVarUInt32(ByteBuffer buffer)	Read an unsigned I32 from the buffer.

Methods inherited from class java.lang.Object

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

Field Detail

MIN_SIGNED_INT

public static final long MIN_SIGNED_INT

See Also:

Constant Field Values

MAX_SIGNED_INT

public static final long MAX_SIGNED_INT

See Also:

Constant Field Values

MIN_UNSIGNED_INT

public static final long MIN_UNSIGNED_INT

See Also:

Constant Field Values

MAX_UNSIGNED_INT

public static final long MAX_UNSIGNED_INT

See Also:

Constant Field Values

MIN_SIGNED_LONG

public static final long MIN_SIGNED_LONG

See Also:

Constant Field Values

MAX_SIGNED_LONG

public static final long MAX_SIGNED_LONG

See Also:

Constant Field Values

Constructor Detail

Parser

public Parser(Logger logger)

Parser

public Parser(Logger logger,
              BitSet includeSections)

Parser

public Parser(Logger logger,
              BitSet includeSections,
              Map<String,Function<byte[],CustomSection>> customParsers)

Method Detail

parseModule

public Module parseModule(InputStream in)

includeSection

public void includeSection(int sectionId)

readVarUInt32

public static long readVarUInt32(ByteBuffer buffer)

Read an unsigned I32 from the buffer. We can't fit an unsigned 32bit int into a java int, so we must use a long. See 2.2.2. Integers of the WebAssembly Core Specification.

Parameters:

buffer - the byte buffer

Returns:

the resulting long

readVarSInt32

public static long readVarSInt32(ByteBuffer buffer)

Read a signed I32 from the buffer. We can't fit an unsigned 32bit int into a java int, so we must use a long to use the same type as unsigned. See 2.2.2. Integers of the WebAssembly Core Specification.

Parameters:

buffer - the byte buffer

Returns:

the resulting long

readVarSInt64

public static long readVarSInt64(ByteBuffer buffer)

Read a signed I64 from the buffer which fits neatly into a long. See 2.2.2. Integers of the WebAssembly Core Specification.

Parameters:

buffer - the byte buffer

Returns:

the resulting long

readFloat64

public static long readFloat64(ByteBuffer buffer)

Read a F64 from the buffer which fits neatly into a long. See 2.2.3. Floating-Point of the WebAssembly Core Specification.

Parameters:

buffer - the byte buffer

Returns:

the resulting long

readFloat32

public static long readFloat32(ByteBuffer buffer)

Read a F32 from the buffer which fits neatly into a long. See 2.2.3. Floating-Point of the WebAssembly Core Specification.

Parameters:

buffer - the byte buffer

Returns:

the resulting long

readName

public static String readName(ByteBuffer buffer)

Read a symbol name from the buffer as UTF-8 String. See 2.2.4. Names of the WebAssembly Core Specification.

Parameters:

buffer - the byte buffer

Returns:

the resulting long

readName

public static String readName(ByteBuffer buffer,
                              boolean checkMalformed)