org.codehaus.groovy.classgen
Class AsmClassGenerator

java.lang.Object
  extended by org.codehaus.groovy.ast.CodeVisitorSupport
      extended by org.codehaus.groovy.classgen.ClassGenerator
          extended by org.codehaus.groovy.classgen.AsmClassGenerator
All Implemented Interfaces:
GroovyClassVisitor, GroovyCodeVisitor, org.objectweb.asm.Opcodes

public class AsmClassGenerator
extends ClassGenerator

Generates Java class versions of Groovy classes using ASM.

Version:
$Revision: 1.58 $
Author:
James Strachan, Bing Ran, Jochen Theodorou

Field Summary
static boolean ASM_DEBUG
           
static boolean CREATE_DEBUG_INFO
           
static boolean CREATE_LINE_NUMBER_INFO
           
 
Fields inherited from class org.codehaus.groovy.classgen.ClassGenerator
asmJDKVersion, classLoader, innerClasses
 
Fields inherited from interface org.objectweb.asm.Opcodes
AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6
 
Constructor Summary
AsmClassGenerator(GeneratorContext context, org.objectweb.asm.ClassVisitor classVisitor, ClassLoader classLoader, String sourceFile)
           
 
Method Summary
protected  boolean addInnerClass(ClassNode innerClass)
           
protected  boolean argumentsUseStack(Expression arguments)
           
protected  ClassNode createClosureClass(ClosureExpression expression)
           
protected  ClassNode createGStringClass(GStringExpression expression)
           
protected  Expression createReturnLHSExpression(Expression expression)
          For assignment expressions, return a safe expression for the LHS we can use to return the value
protected  Expression createReusableExpression(Expression expression)
           
protected  void createSyntheticStaticFields()
           
protected  String createVariableName(String type)
           
protected  Variable defineVariable(String name, ClassNode type)
          Defines the given variable in scope and assigns it to the stack
protected  void doConvertAndCast(ClassNode type)
           
protected  void doConvertAndCast(ClassNode type, Expression expression, boolean ignoreAutoboxing, boolean forceCast)
          Casts to the given type unless it can be determined that the cast is unnecessary
protected  boolean emptyArguments(Expression arguments)
           
protected  void evalBinaryExp_LateBinding(MethodCaller compareMethod, BinaryExpression expression)
           
protected  void evaluateBinaryExpression(String method, BinaryExpression expression)
           
protected  void evaluateBinaryExpressionWithAsignment(String method, BinaryExpression expression)
           
protected  void evaluateCompareTo(BinaryExpression expression)
           
protected  void evaluateEqual(BinaryExpression expression)
           
protected  void evaluateExpression(Expression expression)
           
protected  void evaluateInstanceof(BinaryExpression expression)
           
protected  void evaluateLogicalAndExpression(BinaryExpression expression)
           
protected  void evaluateLogicalOrExpression(BinaryExpression expression)
           
protected  void evaluatePostfixMethod(String method, Expression expression)
           
protected  void evaluatePrefixMethod(String method, Expression expression)
           
protected  void findMutableVariables()
           
protected  ConstructorNode findSuperConstructor(MethodCallExpression call)
          Attempts to find the constructor in a super class
protected  MethodNode findSuperMethod(MethodCallExpression call)
          Attempts to find the method of the given name in a super class
protected  boolean firstStatementIsSuperInit(Statement code)
           
protected  Parameter[] getClosureSharedVariables(ClosureExpression expression)
           
protected  CompileUnit getCompileUnit()
           
protected  ClassNode getExpressionType(Expression expression)
           
protected  ClassNode getLHSType(Expression leftExpression)
          Deduces the type name required for some casting
protected  ClassNode getOutermostClass()
           
protected  VariableScope getVariableScope()
           
protected  ClassNode getVariableType(String name)
           
protected  boolean isComparisonExpression(Expression expression)
           
protected  boolean isFieldOrVariable(String name)
           
protected  boolean isGroovyObject(Expression objectExpression)
           
protected  boolean isHolderVariable(Expression expression)
           
protected  boolean isInClosureConstructor()
           
protected  boolean isInScriptBody()
           
protected  boolean isNonStaticField(Expression expression)
           
protected  boolean isNotFieldOfOutermostClass(String var)
           
protected  boolean isPopRequired(Expression expression)
           
protected  boolean isStaticMethod()
           
protected  boolean isThisExpression(Expression expression)
           
protected  boolean isValidTypeForCast(ClassNode type)
           
protected  void loadArguments(Parameter[] parameters, Expression expression)
          Loads and coerces the argument values for the given method call
 void loadInstanceField(FieldExpression fldExp)
          RHS instance field.
 void loadStaticField(FieldExpression fldExp)
           
protected  void loadThisOrOwner()
          Loads either this object or if we're inside a closure then load the top level owner
protected  void onLineNumber(ASTNode statement, String message)
           
protected  void popScope()
           
protected  void processFieldAccess(String name, FieldNode field, int steps)
           
protected  void processPropertyVariable(Variable variable)
           
protected  void processStackVariable(Variable variable)
           
protected  void pushBlockScope()
           
protected  void pushBlockScope(boolean canContinue, boolean canBreak)
          create a new scope.
protected  void pushClassTypeArgument(ClassNode ownerType, ClassNode type)
           
protected  void resetVariableStack(Parameter[] parameters)
           
 void storeStaticField(FieldExpression expression)
           
 void storeThisInstanceField(FieldExpression expression)
           
protected  void visitAndAutoboxBoolean(Expression expression)
           
 void visitAnnotations(AnnotatedNode node)
           
 void visitArrayExpression(ArrayExpression expression)
           
 void visitAssertStatement(AssertStatement statement)
           
 void visitAttributeExpression(AttributeExpression expression)
           
 void visitBinaryExpression(BinaryExpression expression)
           
 void visitBitwiseNegExpression(BitwiseNegExpression expression)
           
 void visitBooleanExpression(BooleanExpression expression)
          return a primitive boolean value of the BooleanExpresion.
 void visitBreakStatement(BreakStatement statement)
           
 void visitCaseStatement(CaseStatement statement)
           
 void visitCaseStatement(CaseStatement statement, int switchVariableIndex, org.objectweb.asm.Label thisLabel, org.objectweb.asm.Label nextLabel)
           
 void visitCastExpression(CastExpression expression)
           
 void visitClass(ClassNode classNode)
           
 void visitClassExpression(ClassExpression expression)
          load class object on stack
 void visitClosureExpression(ClosureExpression expression)
           
 void visitConstantExpression(ConstantExpression expression)
          Generate byte code for constants
 void visitConstructor(ConstructorNode node)
           
 void visitConstructorCallExpression(ConstructorCallExpression call)
           
 void visitContinueStatement(ContinueStatement statement)
           
 void visitDoWhileLoop(DoWhileStatement loop)
           
 void visitExpressionStatement(ExpressionStatement statement)
           
 void visitField(FieldNode fieldNode)
           
 void visitFieldExpression(FieldExpression expression)
           
 void visitForLoop(ForStatement loop)
           
 void visitGStringExpression(GStringExpression expression)
           
 void visitIfElse(IfStatement ifElse)
           
 void visitListExpression(ListExpression expression)
           
 void visitMapEntryExpression(MapEntryExpression expression)
           
 void visitMapExpression(MapExpression expression)
           
 void visitMethod(MethodNode node)
           
 void visitMethodCallExpression(MethodCallExpression call)
           
 void visitMethodPointerExpression(MethodPointerExpression expression)
           
 void visitNegationExpression(NegationExpression expression)
           
 void visitNotExpression(NotExpression expression)
           
protected  void visitOuterFieldExpression(FieldExpression expression, ClassNode outerClassNode, int steps, boolean first)
           
 void visitPostfixExpression(PostfixExpression expression)
           
 void visitPrefixExpression(PrefixExpression expression)
           
 void visitProperty(PropertyNode statement)
          Creates a getter, setter and field
 void visitPropertyExpression(PropertyExpression expression)
           
 void visitRangeExpression(RangeExpression expression)
           
 void visitRegexExpression(RegexExpression expression)
           
 void visitReturnStatement(ReturnStatement statement)
           
 void visitSpreadExpression(SpreadExpression expression)
           
 void visitSpreadMapExpression(SpreadMapExpression expression)
           
 void visitStaticMethodCallExpression(StaticMethodCallExpression call)
           
 void visitSwitch(SwitchStatement statement)
           
 void visitSynchronizedStatement(SynchronizedStatement statement)
           
 void visitTernaryExpression(TernaryExpression expression)
           
 void visitThrowStatement(ThrowStatement statement)
           
 void visitTryCatchFinally(TryCatchStatement statement)
           
 void visitTupleExpression(TupleExpression expression)
           
 void visitVariableExpression(VariableExpression expression)
          Visits a bare (unqualified) variable expression.
 void visitWhileLoop(WhileStatement loop)
           
 
Methods inherited from class org.codehaus.groovy.classgen.ClassGenerator
getClassLoader, getInnerClasses
 
Methods inherited from class org.codehaus.groovy.ast.CodeVisitorSupport
visitBlockStatement, visitCatchStatement, visitDeclarationExpression, visitListOfExpressions
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

CREATE_DEBUG_INFO

public static final boolean CREATE_DEBUG_INFO
See Also:
Constant Field Values

CREATE_LINE_NUMBER_INFO

public static final boolean CREATE_LINE_NUMBER_INFO
See Also:
Constant Field Values

ASM_DEBUG

public static final boolean ASM_DEBUG
See Also:
Constant Field Values
Constructor Detail

AsmClassGenerator

public AsmClassGenerator(GeneratorContext context,
                         org.objectweb.asm.ClassVisitor classVisitor,
                         ClassLoader classLoader,
                         String sourceFile)
Method Detail

visitClass

public void visitClass(ClassNode classNode)

visitConstructor

public void visitConstructor(ConstructorNode node)

visitMethod

public void visitMethod(MethodNode node)

visitField

public void visitField(FieldNode fieldNode)

visitProperty

public void visitProperty(PropertyNode statement)
Creates a getter, setter and field


visitForLoop

public void visitForLoop(ForStatement loop)
Specified by:
visitForLoop in interface GroovyCodeVisitor
Overrides:
visitForLoop in class CodeVisitorSupport

visitWhileLoop

public void visitWhileLoop(WhileStatement loop)
Specified by:
visitWhileLoop in interface GroovyCodeVisitor
Overrides:
visitWhileLoop in class CodeVisitorSupport

visitDoWhileLoop

public void visitDoWhileLoop(DoWhileStatement loop)
Specified by:
visitDoWhileLoop in interface GroovyCodeVisitor
Overrides:
visitDoWhileLoop in class CodeVisitorSupport

visitIfElse

public void visitIfElse(IfStatement ifElse)
Specified by:
visitIfElse in interface GroovyCodeVisitor
Overrides:
visitIfElse in class CodeVisitorSupport

visitTernaryExpression

public void visitTernaryExpression(TernaryExpression expression)
Specified by:
visitTernaryExpression in interface GroovyCodeVisitor
Overrides:
visitTernaryExpression in class CodeVisitorSupport

visitAssertStatement

public void visitAssertStatement(AssertStatement statement)
Specified by:
visitAssertStatement in interface GroovyCodeVisitor
Overrides:
visitAssertStatement in class CodeVisitorSupport

visitTryCatchFinally

public void visitTryCatchFinally(TryCatchStatement statement)
Specified by:
visitTryCatchFinally in interface GroovyCodeVisitor
Overrides:
visitTryCatchFinally in class CodeVisitorSupport

visitSwitch

public void visitSwitch(SwitchStatement statement)
Specified by:
visitSwitch in interface GroovyCodeVisitor
Overrides:
visitSwitch in class CodeVisitorSupport

visitCaseStatement

public void visitCaseStatement(CaseStatement statement)
Specified by:
visitCaseStatement in interface GroovyCodeVisitor
Overrides:
visitCaseStatement in class CodeVisitorSupport

visitCaseStatement

public void visitCaseStatement(CaseStatement statement,
                               int switchVariableIndex,
                               org.objectweb.asm.Label thisLabel,
                               org.objectweb.asm.Label nextLabel)

visitBreakStatement

public void visitBreakStatement(BreakStatement statement)
Specified by:
visitBreakStatement in interface GroovyCodeVisitor
Overrides:
visitBreakStatement in class CodeVisitorSupport

visitContinueStatement

public void visitContinueStatement(ContinueStatement statement)
Specified by:
visitContinueStatement in interface GroovyCodeVisitor
Overrides:
visitContinueStatement in class CodeVisitorSupport

visitSynchronizedStatement

public void visitSynchronizedStatement(SynchronizedStatement statement)
Specified by:
visitSynchronizedStatement in interface GroovyCodeVisitor
Overrides:
visitSynchronizedStatement in class CodeVisitorSupport

visitThrowStatement

public void visitThrowStatement(ThrowStatement statement)
Specified by:
visitThrowStatement in interface GroovyCodeVisitor
Overrides:
visitThrowStatement in class CodeVisitorSupport

visitReturnStatement

public void visitReturnStatement(ReturnStatement statement)
Specified by:
visitReturnStatement in interface GroovyCodeVisitor
Overrides:
visitReturnStatement in class CodeVisitorSupport

doConvertAndCast

protected void doConvertAndCast(ClassNode type,
                                Expression expression,
                                boolean ignoreAutoboxing,
                                boolean forceCast)
Casts to the given type unless it can be determined that the cast is unnecessary


evaluateExpression

protected void evaluateExpression(Expression expression)
Parameters:
expression -

visitExpressionStatement

public void visitExpressionStatement(ExpressionStatement statement)
Specified by:
visitExpressionStatement in interface GroovyCodeVisitor
Overrides:
visitExpressionStatement in class CodeVisitorSupport

visitBinaryExpression

public void visitBinaryExpression(BinaryExpression expression)
Specified by:
visitBinaryExpression in interface GroovyCodeVisitor
Overrides:
visitBinaryExpression in class CodeVisitorSupport

visitPostfixExpression

public void visitPostfixExpression(PostfixExpression expression)
Specified by:
visitPostfixExpression in interface GroovyCodeVisitor
Overrides:
visitPostfixExpression in class CodeVisitorSupport

visitPrefixExpression

public void visitPrefixExpression(PrefixExpression expression)
Specified by:
visitPrefixExpression in interface GroovyCodeVisitor
Overrides:
visitPrefixExpression in class CodeVisitorSupport

visitClosureExpression

public void visitClosureExpression(ClosureExpression expression)
Specified by:
visitClosureExpression in interface GroovyCodeVisitor
Overrides:
visitClosureExpression in class CodeVisitorSupport

loadThisOrOwner

protected void loadThisOrOwner()
Loads either this object or if we're inside a closure then load the top level owner


visitRegexExpression

public void visitRegexExpression(RegexExpression expression)
Specified by:
visitRegexExpression in interface GroovyCodeVisitor
Overrides:
visitRegexExpression in class CodeVisitorSupport

visitConstantExpression

public void visitConstantExpression(ConstantExpression expression)
Generate byte code for constants

Specified by:
visitConstantExpression in interface GroovyCodeVisitor
Overrides:
visitConstantExpression in class CodeVisitorSupport
See Also:
Class field types

visitSpreadExpression

public void visitSpreadExpression(SpreadExpression expression)
Specified by:
visitSpreadExpression in interface GroovyCodeVisitor
Overrides:
visitSpreadExpression in class CodeVisitorSupport

visitSpreadMapExpression

public void visitSpreadMapExpression(SpreadMapExpression expression)
Specified by:
visitSpreadMapExpression in interface GroovyCodeVisitor
Overrides:
visitSpreadMapExpression in class CodeVisitorSupport

visitMethodPointerExpression

public void visitMethodPointerExpression(MethodPointerExpression expression)
Specified by:
visitMethodPointerExpression in interface GroovyCodeVisitor
Overrides:
visitMethodPointerExpression in class CodeVisitorSupport

visitNegationExpression

public void visitNegationExpression(NegationExpression expression)
Specified by:
visitNegationExpression in interface GroovyCodeVisitor
Overrides:
visitNegationExpression in class CodeVisitorSupport

visitBitwiseNegExpression

public void visitBitwiseNegExpression(BitwiseNegExpression expression)
Specified by:
visitBitwiseNegExpression in interface GroovyCodeVisitor
Overrides:
visitBitwiseNegExpression in class CodeVisitorSupport

visitCastExpression

public void visitCastExpression(CastExpression expression)
Specified by:
visitCastExpression in interface GroovyCodeVisitor
Overrides:
visitCastExpression in class CodeVisitorSupport

visitNotExpression

public void visitNotExpression(NotExpression expression)
Specified by:
visitNotExpression in interface GroovyCodeVisitor
Overrides:
visitNotExpression in class CodeVisitorSupport

visitBooleanExpression

public void visitBooleanExpression(BooleanExpression expression)
return a primitive boolean value of the BooleanExpresion.

Specified by:
visitBooleanExpression in interface GroovyCodeVisitor
Overrides:
visitBooleanExpression in class CodeVisitorSupport
Parameters:
expression -

visitMethodCallExpression

public void visitMethodCallExpression(MethodCallExpression call)
Specified by:
visitMethodCallExpression in interface GroovyCodeVisitor
Overrides:
visitMethodCallExpression in class CodeVisitorSupport

loadArguments

protected void loadArguments(Parameter[] parameters,
                             Expression expression)
Loads and coerces the argument values for the given method call


findSuperMethod

protected MethodNode findSuperMethod(MethodCallExpression call)
Attempts to find the method of the given name in a super class


findSuperConstructor

protected ConstructorNode findSuperConstructor(MethodCallExpression call)
Attempts to find the constructor in a super class


emptyArguments

protected boolean emptyArguments(Expression arguments)

visitStaticMethodCallExpression

public void visitStaticMethodCallExpression(StaticMethodCallExpression call)
Specified by:
visitStaticMethodCallExpression in interface GroovyCodeVisitor
Overrides:
visitStaticMethodCallExpression in class CodeVisitorSupport

visitConstructorCallExpression

public void visitConstructorCallExpression(ConstructorCallExpression call)
Specified by:
visitConstructorCallExpression in interface GroovyCodeVisitor
Overrides:
visitConstructorCallExpression in class CodeVisitorSupport

pushClassTypeArgument

protected void pushClassTypeArgument(ClassNode ownerType,
                                     ClassNode type)

visitPropertyExpression

public void visitPropertyExpression(PropertyExpression expression)
Specified by:
visitPropertyExpression in interface GroovyCodeVisitor
Overrides:
visitPropertyExpression in class CodeVisitorSupport

visitAttributeExpression

public void visitAttributeExpression(AttributeExpression expression)
Specified by:
visitAttributeExpression in interface GroovyCodeVisitor
Overrides:
visitAttributeExpression in class CodeVisitorSupport

isGroovyObject

protected boolean isGroovyObject(Expression objectExpression)

visitFieldExpression

public void visitFieldExpression(FieldExpression expression)
Specified by:
visitFieldExpression in interface GroovyCodeVisitor
Overrides:
visitFieldExpression in class CodeVisitorSupport

loadStaticField

public void loadStaticField(FieldExpression fldExp)
Parameters:
fldExp -

loadInstanceField

public void loadInstanceField(FieldExpression fldExp)
RHS instance field. should move most of the code in the BytecodeHelper

Parameters:
fldExp -

storeThisInstanceField

public void storeThisInstanceField(FieldExpression expression)

storeStaticField

public void storeStaticField(FieldExpression expression)

visitOuterFieldExpression

protected void visitOuterFieldExpression(FieldExpression expression,
                                         ClassNode outerClassNode,
                                         int steps,
                                         boolean first)

visitVariableExpression

public void visitVariableExpression(VariableExpression expression)
Visits a bare (unqualified) variable expression.

Specified by:
visitVariableExpression in interface GroovyCodeVisitor
Overrides:
visitVariableExpression in class CodeVisitorSupport

processStackVariable

protected void processStackVariable(Variable variable)

processPropertyVariable

protected void processPropertyVariable(Variable variable)

processFieldAccess

protected void processFieldAccess(String name,
                                  FieldNode field,
                                  int steps)

isInScriptBody

protected boolean isInScriptBody()
Returns:
true if we are in a script body, where all variables declared are no longer local variables but are properties

isPopRequired

protected boolean isPopRequired(Expression expression)
Returns:
true if this expression will have left a value on the stack that must be popped

firstStatementIsSuperInit

protected boolean firstStatementIsSuperInit(Statement code)

createSyntheticStaticFields

protected void createSyntheticStaticFields()

visitClassExpression

public void visitClassExpression(ClassExpression expression)
load class object on stack

Specified by:
visitClassExpression in interface GroovyCodeVisitor
Overrides:
visitClassExpression in class CodeVisitorSupport

visitRangeExpression

public void visitRangeExpression(RangeExpression expression)
Specified by:
visitRangeExpression in interface GroovyCodeVisitor
Overrides:
visitRangeExpression in class CodeVisitorSupport

visitMapEntryExpression

public void visitMapEntryExpression(MapEntryExpression expression)
Specified by:
visitMapEntryExpression in interface GroovyCodeVisitor
Overrides:
visitMapEntryExpression in class CodeVisitorSupport

visitMapExpression

public void visitMapExpression(MapExpression expression)
Specified by:
visitMapExpression in interface GroovyCodeVisitor
Overrides:
visitMapExpression in class CodeVisitorSupport

visitTupleExpression

public void visitTupleExpression(TupleExpression expression)
Specified by:
visitTupleExpression in interface GroovyCodeVisitor
Overrides:
visitTupleExpression in class CodeVisitorSupport

visitArrayExpression

public void visitArrayExpression(ArrayExpression expression)
Specified by:
visitArrayExpression in interface GroovyCodeVisitor
Overrides:
visitArrayExpression in class CodeVisitorSupport

visitListExpression

public void visitListExpression(ListExpression expression)
Specified by:
visitListExpression in interface GroovyCodeVisitor
Overrides:
visitListExpression in class CodeVisitorSupport

visitGStringExpression

public void visitGStringExpression(GStringExpression expression)
Specified by:
visitGStringExpression in interface GroovyCodeVisitor
Overrides:
visitGStringExpression in class CodeVisitorSupport

visitAnnotations

public void visitAnnotations(AnnotatedNode node)

addInnerClass

protected boolean addInnerClass(ClassNode innerClass)

createClosureClass

protected ClassNode createClosureClass(ClosureExpression expression)

getOutermostClass

protected ClassNode getOutermostClass()

createGStringClass

protected ClassNode createGStringClass(GStringExpression expression)

doConvertAndCast

protected void doConvertAndCast(ClassNode type)

evaluateLogicalOrExpression

protected void evaluateLogicalOrExpression(BinaryExpression expression)

evaluateLogicalAndExpression

protected void evaluateLogicalAndExpression(BinaryExpression expression)

evaluateBinaryExpression

protected void evaluateBinaryExpression(String method,
                                        BinaryExpression expression)

evaluateCompareTo

protected void evaluateCompareTo(BinaryExpression expression)

evaluateBinaryExpressionWithAsignment

protected void evaluateBinaryExpressionWithAsignment(String method,
                                                     BinaryExpression expression)

evalBinaryExp_LateBinding

protected void evalBinaryExp_LateBinding(MethodCaller compareMethod,
                                         BinaryExpression expression)

evaluateEqual

protected void evaluateEqual(BinaryExpression expression)

getLHSType

protected ClassNode getLHSType(Expression leftExpression)
Deduces the type name required for some casting

Returns:
the type of the given (LHS) expression or null if it is java.lang.Object or it cannot be deduced

isValidTypeForCast

protected boolean isValidTypeForCast(ClassNode type)

visitAndAutoboxBoolean

protected void visitAndAutoboxBoolean(Expression expression)

evaluatePrefixMethod

protected void evaluatePrefixMethod(String method,
                                    Expression expression)

evaluatePostfixMethod

protected void evaluatePostfixMethod(String method,
                                     Expression expression)

isHolderVariable

protected boolean isHolderVariable(Expression expression)

evaluateInstanceof

protected void evaluateInstanceof(BinaryExpression expression)

argumentsUseStack

protected boolean argumentsUseStack(Expression arguments)
Returns:
true if the given argument expression requires the stack, in which case the arguments are evaluated first, stored in the variable stack and then reloaded to make a method call

isNonStaticField

protected boolean isNonStaticField(Expression expression)
Returns:
true if the given expression represents a non-static field

isThisExpression

protected boolean isThisExpression(Expression expression)

createReturnLHSExpression

protected Expression createReturnLHSExpression(Expression expression)
For assignment expressions, return a safe expression for the LHS we can use to return the value


createReusableExpression

protected Expression createReusableExpression(Expression expression)

isComparisonExpression

protected boolean isComparisonExpression(Expression expression)

onLineNumber

protected void onLineNumber(ASTNode statement,
                            String message)

getVariableScope

protected VariableScope getVariableScope()

getClosureSharedVariables

protected Parameter[] getClosureSharedVariables(ClosureExpression expression)
Returns:
a list of parameters for each local variable which needs to be passed into a closure

isNotFieldOfOutermostClass

protected boolean isNotFieldOfOutermostClass(String var)

findMutableVariables

protected void findMutableVariables()

getVariableType

protected ClassNode getVariableType(String name)

resetVariableStack

protected void resetVariableStack(Parameter[] parameters)

popScope

protected void popScope()

pushBlockScope

protected void pushBlockScope()

pushBlockScope

protected void pushBlockScope(boolean canContinue,
                              boolean canBreak)
create a new scope. Set break/continue label if the canXXX parameter is true. Otherwise inherit parent's label.

Parameters:
canContinue - true if the start of the scope can take continue label
canBreak - true if the end of the scope can take break label

defineVariable

protected Variable defineVariable(String name,
                                  ClassNode type)
Defines the given variable in scope and assigns it to the stack


isFieldOrVariable

protected boolean isFieldOrVariable(String name)
Returns:
true if the given name is a local variable or a field

createVariableName

protected String createVariableName(String type)

getExpressionType

protected ClassNode getExpressionType(Expression expression)
Returns:
if the type of the expression can be determined at compile time then this method returns the type - otherwise null

isInClosureConstructor

protected boolean isInClosureConstructor()

isStaticMethod

protected boolean isStaticMethod()

getCompileUnit

protected CompileUnit getCompileUnit()


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