com.caucho.quercus.program
Class FunctionGenerator

java.lang.Object
  com.caucho.quercus.program.FunctionGenerator

public abstract class FunctionGenerator
extends java.lang.Object

Represents a function

Constructor Summary

protected	FunctionGenerator()
protected	FunctionGenerator(Location location)

Method Summary

void	analyze(QuercusProgram program) Analyzes the function.
void	analyzeArguments(Expr[] args, AnalyzeInfo info) Analyzes the arguments for read-only and reference.
boolean	canGenerateCall(Expr[] args) Returns true if the function can generate the call directly.
void	generate(PhpWriter out) Generates the code for the class component.
abstract void	generate(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate the expression.
void	generateBoolean(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate as a boolean expression.
void	generateCopy(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate as a double expression.
void	generateDouble(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate as a double expression.
void	generateInit(PhpWriter out) Generates the code for the initialization component.
void	generateLong(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate as a long expression.
void	generateRef(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate the expression.
void	generateString(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate as a string expression.
void	generateTop(PhpWriter out, ExprGenerator funExpr, Expr[] args) Generates code to calluate as a top-level expression.
Arg[]	getArgs() Returns the args.
Location	getLocation()
java.lang.String	getName()
boolean	isAbstract() Returns true for an abstract function.
boolean	isBoolean() Returns true for a boolean function.
boolean	isCallReplacesSymbolTable() Returns true if the function uses/modifies the local symbol table
boolean	isCallUsesSymbolTable() Returns true if the function uses/modifies the local symbol table
boolean	isCallUsesVariableArgs() Returns true if the function uses variable args.
boolean	isDouble() Returns true for a double function.
boolean	isGlobal() Returns true for a global function.
boolean	isLong() Returns true for a long function.
boolean	isReturnsReference() True for a returns reference.
boolean	isString() Returns true for a string function.
boolean	isVoidReturn() True if the return type is void.
void	setGlobal(boolean isGlobal) Returns true for a global function.

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionGenerator

protected FunctionGenerator()

FunctionGenerator

protected FunctionGenerator(Location location)

Method Detail

getName

public java.lang.String getName()

isGlobal

public final boolean isGlobal()

Returns true for a global function.

isAbstract

public boolean isAbstract()

Returns true for an abstract function.

getLocation

public final Location getLocation()

setGlobal

public final void setGlobal(boolean isGlobal)

Returns true for a global function.

isBoolean

public boolean isBoolean()

Returns true for a boolean function.

isString

public boolean isString()

Returns true for a string function.

isLong

public boolean isLong()

Returns true for a long function.

isDouble

public boolean isDouble()

Returns true for a double function.

isCallUsesVariableArgs

public boolean isCallUsesVariableArgs()

Returns true if the function uses variable args.

isCallUsesSymbolTable

public boolean isCallUsesSymbolTable()

Returns true if the function uses/modifies the local symbol table

isCallReplacesSymbolTable

public boolean isCallReplacesSymbolTable()

Returns true if the function uses/modifies the local symbol table

isReturnsReference

public boolean isReturnsReference()

True for a returns reference.

isVoidReturn

public boolean isVoidReturn()

True if the return type is void.

getArgs

public Arg[] getArgs()

Returns the args.

analyze

public void analyze(QuercusProgram program)

Analyzes the function.

analyzeArguments

public void analyzeArguments(Expr[] args,
                             AnalyzeInfo info)

Analyzes the arguments for read-only and reference.

canGenerateCall

public boolean canGenerateCall(Expr[] args)

Returns true if the function can generate the call directly.

generate

public abstract void generate(PhpWriter out,
                              ExprGenerator funExpr,
                              Expr[] args)
                       throws java.io.IOException

Generates code to calluate the expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generateRef

public void generateRef(PhpWriter out,
                        ExprGenerator funExpr,
                        Expr[] args)
                 throws java.io.IOException

Generates code to calluate the expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generateTop

public void generateTop(PhpWriter out,
                        ExprGenerator funExpr,
                        Expr[] args)
                 throws java.io.IOException

Generates code to calluate as a top-level expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generateBoolean

public void generateBoolean(PhpWriter out,
                            ExprGenerator funExpr,
                            Expr[] args)
                     throws java.io.IOException

Generates code to calluate as a boolean expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generateString

public void generateString(PhpWriter out,
                           ExprGenerator funExpr,
                           Expr[] args)
                    throws java.io.IOException

Generates code to calluate as a string expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generateLong

public void generateLong(PhpWriter out,
                         ExprGenerator funExpr,
                         Expr[] args)
                  throws java.io.IOException

Generates code to calluate as a long expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generateDouble

public void generateDouble(PhpWriter out,
                           ExprGenerator funExpr,
                           Expr[] args)
                    throws java.io.IOException

Generates code to calluate as a double expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generateCopy

public void generateCopy(PhpWriter out,
                         ExprGenerator funExpr,
                         Expr[] args)
                  throws java.io.IOException

Generates code to calluate as a double expression.

Parameters:

out - the writer to the Java source code.

Throws:

java.io.IOException

generate

public void generate(PhpWriter out)
              throws java.io.IOException

Generates the code for the class component.

Parameters:

out - the writer to the output stream.

Throws:

java.io.IOException

generateInit

public void generateInit(PhpWriter out)
                  throws java.io.IOException

Generates the code for the initialization component.

Parameters:

out - the writer to the output stream.

Throws:

java.io.IOException