Package jminusminus

Class JLogicalNotOp

java.lang.Object

jminusminus.JAST

jminusminus.JStatement

jminusminus.JExpression

jminusminus.JUnaryExpression

jminusminus.JLogicalNotOp

class JLogicalNotOp
extends JUnaryExpression

The AST node for a logical NOT (!) expression.

Field Summary

Fields inherited from class jminusminus.JUnaryExpression

operand, operator

Fields inherited from class jminusminus.JExpression

isStatementExpression, type

Fields inherited from class jminusminus.JAST

compilationUnit, line

Constructor Summary

Constructors

Constructor	Description
JLogicalNotOp(int line, JExpression arg)	Constructs an AST for a logical NOT expression.

Method Summary

Modifier and Type	Method	Description
JExpression	analyze(Context context)	Analyzes and returns a JExpression.
void	codegen(CLEmitter output)	Performs code generation for this AST.
void	codegen(CLEmitter output, String targetLabel, boolean onTrue)	Performs short-circuit code generation for a boolean expression, given the code emitter, a target label, and whether we branch to that label on true or on false.

Methods inherited from class jminusminus.JUnaryExpression

toJSON

Methods inherited from class jminusminus.JExpression

isStatementExpression, type

Methods inherited from class jminusminus.JAST

line, partialCodegen, unescape

Methods inherited from class java.lang.Object

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

Constructor Details

JLogicalNotOp

public JLogicalNotOp(int line,
 JExpression arg)

Constructs an AST for a logical NOT expression.

Parameters:

line - line in which the logical NOT expression occurs in the source file.

arg - the operand.

Method Details

analyze

public JExpression analyze(Context context)

Analyzes and returns a JExpression.

Specified by:

analyze in class JExpression

Parameters:

context - context in which names are resolved.

Returns:

the analyzed (and possibly rewritten) AST subtree.

codegen

public void codegen(CLEmitter output)

Performs code generation for this AST.

Specified by:

codegen in class JAST

Parameters:

output - the code emitter.

codegen

public void codegen(CLEmitter output,
 String targetLabel,
 boolean onTrue)

Performs short-circuit code generation for a boolean expression, given the code emitter, a target label, and whether we branch to that label on true or on false.

Overrides:

codegen in class JExpression

Parameters:

output - the code emitter.

targetLabel - the label to which we should branch.

onTrue - do we branch on true?