Package gw.internal.gosu.parser.statements

Class StatementList

java.lang.Object

gw.internal.gosu.parser.ParsedElement

gw.internal.gosu.parser.Statement

gw.internal.gosu.parser.statements.StatementList

All Implemented Interfaces:

IParsedElement, IStatement, IStatementList

public final class StatementList
extends Statement
implements IStatementList

Represents a statement-list as specified in the Gosu grammar:

 statement-list
   <statement>
   <statement-list> <statement>
 

See Also:

IGosuParser

Field Summary

Fields

Modifier and Type	Field	Description
private int	_lastLine
protected IStackProvider	_stackProvider
protected Statement[]	_statements

Fields inherited from class gw.internal.gosu.parser.Statement

VOID_RETURN_VALUE

Fields inherited from class gw.internal.gosu.parser.ParsedElement

_tokens, UNDEF_FILE, UNDEF_FUNCTION, UNDEF_MODULE

Constructor Summary

Constructors

Constructor	Description
StatementList(IStackProvider stackProvider)	Constructs a StatementList given an ISymbolTable instance.

Method Summary

Modifier and Type	Method	Description
void	adjustLineNum(int offset)
void	clearParseTreeInformation()
java.lang.Object	execute()	Execute the list of statements.
int	getLastLine()
protected ITerminalStatement	getLeastSignificantTerminalStatement_internal(boolean[] bAbsolute)
ITerminalStatement	getLeastSignificantTerminalStatementAfter(Statement fromStmt, boolean[] bAbsolute)
Statement	getSelfOrSingleStatement()
Statement[]	getStatements()
boolean	hasScope()	for testing
int	indexOf(Statement stmt)
void	setLastLineNumber(int lastLine)
void	setNoScope()
void	setStatements(java.util.List<Statement> statements)
java.lang.String	toString()	Subclasses should return a String representing the parsed statement.
private void	tryToEliminateTheScope()	A statement-list needs to push a new scope on the symbol table to provide a for local variable scoping.

Methods inherited from class gw.internal.gosu.parser.Statement

execute, getExcludedReturnTypeElements, getLeastSignificant, getLeastSignificantTerminalStatement, getReturnType, hasContent, isNoOp, setParent

Methods inherited from class gw.internal.gosu.parser.ParsedElement

addExceptionsFrom, addParseException, addParseException, addParseException, addParseExceptions, addParseIssues, addParseWarning, addParseWarning, addParseWarnings, addToken, adjustColumn, assignTokens, clearParseExceptions, clearParseWarnings, compactParseTree, findAncestorParsedElementByType, findDeclaringStatement, findLineNumberOfDeclaration, findRootParsedElement, getAnnotations, getColumn, getContainedParsedElementsByType, getContainedParsedElementsByTypes, getContainedParsedElementsByTypesWithIgnoreSet, getEnclosingFeatureInfo, getFunctionName, getGosuClass, getGosuProgram, getImmediateParseIssue, getImmediateParseIssues, getLineNum, getLocation, getModule, getParent, getParseExceptions, getParseIssues, getParseWarnings, getQualifyingEnclosingTypeInfo, getTokens, hasImmediateParseIssue, hasImmediateParseWarning, hasImmediateParseWarnings, hasParseException, hasParseExceptions, hasParseIssue, hasParseIssues, hasParseWarning, hasParseWarnings, initEmptyParseTree, initLocation, isCompileTimeConstant, isSuppressed, isSuppressed, isSynthetic, makeDoubleValue, makeFloatValue, makeInteger, makeLong, removeParseException, removeParseWarning, removeParseWarningRecursively, setGosuProgram, setLineNum, setLocation, setSynthetic, shouldClearParseInfo, visit

Methods inherited from class java.lang.Object

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

Methods inherited from interface gw.lang.parser.IParsedElement

addExceptionsFrom, addParseException, addParseException, addParseWarning, addParseWarning, clearParseExceptions, clearParseWarnings, findAncestorParsedElementByType, findDeclaringStatement, findRootParsedElement, getColumn, getContainedParsedElementsByType, getContainedParsedElementsByTypes, getContainedParsedElementsByTypesWithIgnoreSet, getFunctionName, getGosuClass, getGosuProgram, getImmediateParseIssue, getImmediateParseIssues, getLineNum, getLocation, getModule, getParent, getParseExceptions, getParseIssues, getParseWarnings, getReturnType, getTokens, hasImmediateParseIssue, hasImmediateParseWarnings, hasParseException, hasParseExceptions, hasParseIssue, hasParseIssues, hasParseWarning, hasParseWarnings, isCompileTimeConstant, isSuppressed, isSynthetic, setLocation, setParent, visit

Methods inherited from interface gw.lang.parser.IStatement

execute, getLeastSignificantTerminalStatement, hasContent

Field Detail

_statements

protected Statement[] _statements

_stackProvider

protected IStackProvider _stackProvider

_lastLine

private int _lastLine

Constructor Detail

StatementList

public StatementList(IStackProvider stackProvider)

Constructs a StatementList given an ISymbolTable instance.

Method Detail

clearParseTreeInformation

public void clearParseTreeInformation()

Specified by:

clearParseTreeInformation in interface IParsedElement

Overrides:

clearParseTreeInformation in class ParsedElement

getStatements

public Statement[] getStatements()

Specified by:

getStatements in interface IStatementList

Returns:

A list of Statements representing this statement-list.

setStatements

public void setStatements(java.util.List<Statement> statements)

Parameters:

statements - A list of Statements representing this statement-list.

indexOf

public int indexOf(Statement stmt)

tryToEliminateTheScope

private void tryToEliminateTheScope()

A statement-list needs to push a new scope on the symbol table to provide a for local variable scoping. Since this is a relatively expensive operation we avoid pushing the scope if we know none of the statements declare variables.

setNoScope

public void setNoScope()

hasScope

public boolean hasScope()

for testing

Specified by:

hasScope in interface IStatementList

execute

public java.lang.Object execute()

Execute the list of statements.

Specified by:

execute in interface IStatement

Overrides:

execute in class Statement

getLeastSignificantTerminalStatement_internal

protected ITerminalStatement getLeastSignificantTerminalStatement_internal(boolean[] bAbsolute)

Specified by:

getLeastSignificantTerminalStatement_internal in class Statement

getLeastSignificantTerminalStatementAfter

public ITerminalStatement getLeastSignificantTerminalStatementAfter(Statement fromStmt,
                                                                    boolean[] bAbsolute)

toString

public java.lang.String toString()

Description copied from class: Statement

Subclasses should return a String representing the parsed statement.

Specified by:

toString in class Statement

getSelfOrSingleStatement

public Statement getSelfOrSingleStatement()

getLastLine

public int getLastLine()

Specified by:

getLastLine in interface IStatementList

setLastLineNumber

public void setLastLineNumber(int lastLine)

adjustLineNum

public void adjustLineNum(int offset)

Overrides:

adjustLineNum in class ParsedElement