Module Simula

Package simula.compiler.syntaxClass.statement

Class BlockStatement

java.lang.Object

simula.compiler.syntaxClass.SyntaxClass

simula.compiler.syntaxClass.statement.Statement

simula.compiler.syntaxClass.statement.BlockStatement

public final class BlockStatement
extends Statement

BlockStatement.

 Simula Standard: 4.10 Blocks
 
   block
      = subblock
      | prefixed-block
      
         subblock = BEGIN declaration { ; declaration } ; statement { ; statement } END
         
         prefixed-block
            = block-prefix main-block
            
            block-prefix
               = class-identifier [ actual-parameter-part ]
               
            main-block
            
               = block
               | BEGIN statement { ; statement } END
 

Link to GitHub: Source File.

Author:

SIMULA Standards Group, Øystein Myhre Andersen

Field Summary

Fields

Modifier and Type	Field	Description
private final BlockDeclaration	blockDeclaration	The associated block declaration.

Fields inherited from class simula.compiler.syntaxClass.SyntaxClass

lineNumber

Constructor Summary

Constructors

Constructor	Description
BlockStatement(BlockDeclaration blockDeclaration)	Create a new BlockStatement.

Method Summary

Modifier and Type	Method	Description
(package private) void	addLeadingLabel(String labelcode)	Add a leading label to this BlockStatement.
void	doChecking()	Perform semantic checking.
void	doJavaCoding()	Output Java code.
(package private) boolean	isCompoundStatement()	Check if this BlockStatement is a CompoundStatement.
void	print(int indent)	Utility print method.
void	printTree(int indent)	Utility print syntax tree method.
String	toString()

Methods inherited from class simula.compiler.syntaxClass.statement.Statement

expectStatement

Methods inherited from class simula.compiler.syntaxClass.SyntaxClass

ASSERT_SEMANTICS_CHECKED, doDeclarationCoding, edIndent, edTreeIndent, IS_SEMANTICS_CHECKED, SET_SEMANTICS_CHECKED, toJavaCode

Methods inherited from class java.lang.Object

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

Field Details

blockDeclaration

private final BlockDeclaration blockDeclaration

The associated block declaration.

Constructor Details

BlockStatement

public BlockStatement(BlockDeclaration blockDeclaration)

Create a new BlockStatement.

Parameters:

blockDeclaration - the BlockDeclaration

Method Details

isCompoundStatement

boolean isCompoundStatement()

Check if this BlockStatement is a CompoundStatement.

Returns:

true if this BlockStatement is a CompoundStatement

doChecking

public void doChecking()

Description copied from class: SyntaxClass

Perform semantic checking.

This must be redefined in every subclass.

Overrides:

doChecking in class SyntaxClass

addLeadingLabel

void addLeadingLabel(String labelcode)

Add a leading label to this BlockStatement.

Parameters:

labelcode - the label code

doJavaCoding

public void doJavaCoding()

Description copied from class: SyntaxClass

Output Java code.

Overrides:

doJavaCoding in class Statement

print

public void print(int indent)

Description copied from class: SyntaxClass

Utility print method.

Overrides:

print in class SyntaxClass

Parameters:

indent - number of spaces leading the line

printTree

public void printTree(int indent)

Description copied from class: SyntaxClass

Utility print syntax tree method.

Overrides:

printTree in class SyntaxClass

Parameters:

indent - number of spaces leading the lines

toString

public String toString()

Overrides:

toString in class Object