jminusminus

Class JIfStatement

java.lang.Object

jminusminus.JAST

jminusminus.JStatement

jminusminus.JIfStatement

 class JIfStatement
extends JStatement

The AST node for an if-statement.

Field Summary

Fields inherited from class jminusminus.JAST

compilationUnit, line

Constructor Summary

Constructors

Constructor and Description
JIfStatement(int line, JExpression condition, JStatement thenPart, JStatement elsePart) Construct an AST node for an if-statement given its line number, the test expression, the consequent, and the alternate.

Method Summary

Methods

Modifier and Type	Method and Description
JStatement	analyze(Context context) Analyzing the if-statement means analyzing its components and checking that the test is boolean.
void	codegen(CLEmitter output) Code generation for an if-statement.
void	writeToStdOut(PrettyPrinter p) Write the information pertaining to this AST to STDOUT.

Methods inherited from class jminusminus.JAST

line, partialCodegen

Methods inherited from class java.lang.Object

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

Constructor Detail

JIfStatement

public JIfStatement(int line,
            JExpression condition,
            JStatement thenPart,
            JStatement elsePart)

Construct an AST node for an if-statement given its line number, the test expression, the consequent, and the alternate.

Parameters:

line - line in which the if-statement occurs in the source file.

condition - test expression.

thenPart - then clause.

elsePart - else clause.

Method Detail

analyze

public JStatement analyze(Context context)

Analyzing the if-statement means analyzing its components and checking that the test is boolean.

Specified by:

analyze in class JAST

Parameters:

context - context in which names are resolved.

Returns:

the analyzed (and possibly rewritten) AST subtree.

codegen

public void codegen(CLEmitter output)

Code generation for an if-statement. We generate code to branch over the consequent if !test; the consequent is followed by an unconditonal branch over (any) alternate.

Specified by:

codegen in class JAST

Parameters:

output - the code emitter (basically an abstraction for producing the .class file).

writeToStdOut

public void writeToStdOut(PrettyPrinter p)

Description copied from class: JAST

Write the information pertaining to this AST to STDOUT.

Specified by:

writeToStdOut in class JAST

Parameters:

p - for pretty printing with indentation.