Class RuntimeMapping

java.lang.Object

io.github.protasm.jvmud.compiler.runtime.RuntimeMapping

public final class RuntimeMapping
extends Object

Runtime helpers for LPC mapping operations that accept legacy false sentinels.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	RuntimeMapping.MultiValue	Runtime representation for a mapping entry with multiple semicolon-separated values.

Method Summary

Modifier and Type	Method	Description
static Map<Object,Object>	merge(Object left, Object right)	Merges LPC mapping operands while treating the false sentinel as an empty mapping.
static Object	multiValue(Object... values)	Wraps a mapping entry's semicolon-separated values as one Java map value.
static Object	replaceValue(Object entry, Object index, Object value)	Replaces one value slot in a multi-value mapping entry.
static Object	select(Object value, Object index)	Selects one value slot from a possibly multi-value mapping entry.

Methods inherited from class Object

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

Method Details

multiValue

public static Object multiValue(Object... values)

Wraps a mapping entry's semicolon-separated values as one Java map value.

select

public static Object select(Object value,
 Object index)

Selects one value slot from a possibly multi-value mapping entry.

replaceValue

public static Object replaceValue(Object entry,
 Object index,
 Object value)

Replaces one value slot in a multi-value mapping entry.

Parameters:

entry - current Java representation of the mapping entry, or null when absent

index - zero-based mapping value slot

value - replacement value

Returns:

the updated entry representation

merge

public static Map<Object,Object> merge(Object left,
 Object right)

Merges LPC mapping operands while treating the false sentinel as an empty mapping.

The right operand wins duplicate keys, matching the direct putAll order the bytecode emitter used before this helper.