Package org.codehaus.groovy.classgen.asm.sc

Class StaticTypesBinaryExpressionMultiTypeDispatcher

java.lang.Object

org.codehaus.groovy.classgen.asm.BinaryExpressionHelper

org.codehaus.groovy.classgen.asm.BinaryExpressionMultiTypeDispatcher

org.codehaus.groovy.classgen.asm.sc.StaticTypesBinaryExpressionMultiTypeDispatcher

Direct Known Subclasses:

IndyStaticTypesMultiTypeDispatcher

public class StaticTypesBinaryExpressionMultiTypeDispatcher
extends BinaryExpressionMultiTypeDispatcher

A specialized version of the multi type binary expression dispatcher which is aware of static compilation. It is able to generate optimized bytecode for some operations using JVM instructions when available.

Field Summary

Fields inherited from class org.codehaus.groovy.classgen.asm.BinaryExpressionMultiTypeDispatcher

binExpWriter, typeMap, typeMapKeyNames

Fields inherited from class org.codehaus.groovy.classgen.asm.BinaryExpressionHelper

controller

Constructor Summary

Constructors

Constructor	Description
StaticTypesBinaryExpressionMultiTypeDispatcher(WriterController wc)	Creates a binary-expression dispatcher for statically compiled bytecode generation.

Method Summary

Modifier and Type	Method	Description
protected void	assignToArray(Expression enclosing, Expression receiver, Expression subscript, Expression rhsValueLoader, boolean safe)	Emits an array-style assignment using the dynamic putAt protocol.
protected void	evaluateBinaryExpressionWithAssignment(String method, BinaryExpression expression)	Evaluates an operator-assignment expression such as +=.
protected void	evaluateCompoundAssign(String assignName, String baseName, BinaryExpression expression)	GEP-15: dynamic-mode compound-assign codegen.
void	evaluateEqual(BinaryExpression expression, boolean defineVariable)	Evaluates an assignment expression.
protected void	writePostOrPrefixMethod(int op, String method, Expression expression, Expression orig)	Emits the method call used to implement a prefix or postfix operation.

Methods inherited from class org.codehaus.groovy.classgen.asm.BinaryExpressionMultiTypeDispatcher

doPrimitiveCompare, doPrimtiveCompare, evaluateBinaryExpression, evaluateCompareExpression, getOperandType, initializeDelegateHelpers

Methods inherited from class org.codehaus.groovy.classgen.asm.BinaryExpressionHelper

eval, evaluateArrayAssignmentWithOperator, evaluateElvisEqual, evaluatePostfixMethod, evaluatePrefixMethod, evaluateTernary, getController, getIsCaseMethod

Methods inherited from class java.lang.Object

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

Constructor Details

StaticTypesBinaryExpressionMultiTypeDispatcher

public StaticTypesBinaryExpressionMultiTypeDispatcher(WriterController wc)

Creates a binary-expression dispatcher for statically compiled bytecode generation.

Method Details

writePostOrPrefixMethod

protected void writePostOrPrefixMethod(int op,
 String method,
 Expression expression,
 Expression orig)

Emits the method call used to implement a prefix or postfix operation.

Overrides:

writePostOrPrefixMethod in class BinaryExpressionMultiTypeDispatcher

Parameters:

op - the token type

method - the helper method name

expression - the receiver expression

orig - the original prefix/postfix expression

evaluateBinaryExpressionWithAssignment

protected void evaluateBinaryExpressionWithAssignment(String method,
 BinaryExpression expression)

Evaluates an operator-assignment expression such as +=.

Overrides:

evaluateBinaryExpressionWithAssignment in class BinaryExpressionMultiTypeDispatcher

Parameters:

method - the operator method name

expression - the assignment expression

evaluateCompoundAssign

protected void evaluateCompoundAssign(String assignName,
 String baseName,
 BinaryExpression expression)

GEP-15: dynamic-mode compound-assign codegen. Routes through ScriptBytecodeAdapter.compoundAssign(Object, Object, String, String) which dispatches to assignName when the receiver responds to it, and falls back to baseName otherwise. The caller stores the helper's return value into the LHS — for the in-place branch this is a no-op store of the receiver back to itself; for the fallback branch it is the usual "x = x.op(y)" assignment.

Overrides:

evaluateCompoundAssign in class BinaryExpressionMultiTypeDispatcher

evaluateEqual

public void evaluateEqual(BinaryExpression expression,
 boolean defineVariable)

Evaluates an assignment expression.

Overrides:

evaluateEqual in class BinaryExpressionHelper

Parameters:

expression - the assignment expression

defineVariable - whether the left-hand side declares a new variable

assignToArray

protected void assignToArray(Expression enclosing,
 Expression receiver,
 Expression subscript,
 Expression rhsValueLoader,
 boolean safe)

Emits an array-style assignment using the dynamic putAt protocol.

Overrides:

assignToArray in class BinaryExpressionMultiTypeDispatcher

Parameters:

enclosing - the original assignment expression

receiver - the array or indexable receiver

subscript - the subscript expression

rhsValueLoader - an expression that reloads the right-hand value

safe - whether the receiver access is null-safe