Package jminusminus

Class JMessageExpression

java.lang.Object

jminusminus.JAST

jminusminus.JStatement

jminusminus.JExpression

jminusminus.JMessageExpression

class JMessageExpression
extends JExpression

The AST node for a message expression that has a target, optionally an ambiguous part, a message name, and zero or more actual arguments.

Field Summary

Fields inherited from class jminusminus.JExpression

isStatementExpression, type

Fields inherited from class jminusminus.JAST

compilationUnit, line

Constructor Summary

Constructors

Constructor	Description
JMessageExpression(int line, JExpression target, String messageName, ArrayList<JExpression> arguments)	Constructs an AST node for a message expression without an ambiguous part.
JMessageExpression(int line, JExpression target, AmbiguousName ambiguousPart, String messageName, ArrayList<JExpression> arguments)	Constructs an AST node for a message expression having an ambiguous part.

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.
void	toJSON(JSONElement json)	Stores information about this AST in JSON format.

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

JMessageExpression

public JMessageExpression(int line,
 JExpression target,
 String messageName,
 ArrayList<JExpression> arguments)

Constructs an AST node for a message expression without an ambiguous part.

Parameters:

line - line in which the expression occurs in the source file.

target - the target expression.

messageName - the message name.

arguments - the arguments.

JMessageExpression

public JMessageExpression(int line,
 JExpression target,
 AmbiguousName ambiguousPart,
 String messageName,
 ArrayList<JExpression> arguments)

Constructs an AST node for a message expression having an ambiguous part.

Parameters:

line - line in which the expression occurs in the source file.

target - the target expression.

ambiguousPart - the ambiguous part.

messageName - the message name.

arguments - the arguments.

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?

toJSON

public void toJSON(JSONElement json)

Stores information about this AST in JSON format.

Overrides:

toJSON in class JAST

Parameters:

json - the JSON emitter.