Package jminusminus

Class JReturnStatement

java.lang.Object

jminusminus.JAST

jminusminus.JStatement

jminusminus.JReturnStatement

class JReturnStatement
extends JStatement

The AST node for a return-statement. If the enclosing method is non-void, then there is a value to return, so we keep track of the expression denoting that value and its type.

Field Summary

Fields inherited from class jminusminus.JAST

compilationUnit, line

Constructor Summary

Constructors

Constructor	Description
JReturnStatement(int line, JExpression expr)	Constructs an AST node for a return-statement.

Method Summary

Modifier and Type	Method	Description
JStatement	analyze(Context context)	Performs semantic analysis on this AST and returns the (possibly modified) AST.
void	codegen(CLEmitter output)	Performs code generation for this AST.
void	toJSON(JSONElement json)	Stores information about this AST in JSON format.

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

JReturnStatement

public JReturnStatement(int line,
 JExpression expr)

Constructs an AST node for a return-statement.

Parameters:

line - line in which the return-statement appears in the source file.

expr - the returned expression.

Method Details

analyze

public JStatement analyze(Context context)

Performs semantic analysis on this AST and returns the (possibly modified) AST.

Specified by:

analyze in class JAST

Parameters:

context - the environment (scope) in which code is analyzed.

Returns:

the (possibly modified) AST.

codegen

public void codegen(CLEmitter output)

Performs code generation for this AST.

Specified by:

codegen in class JAST

Parameters:

output - the code emitter.

toJSON

public void toJSON(JSONElement json)

Stores information about this AST in JSON format.

Overrides:

toJSON in class JAST

Parameters:

json - the JSON emitter.