com.google.javascript.jscomp

Class CompilerInput

java.lang.Object

com.google.javascript.jscomp.CompilerInput

All Implemented Interfaces:

DependencyInfo, SourceAst, Serializable

public class CompilerInput
extends Object
implements SourceAst, DependencyInfo

A class for the internal representation of an input to the compiler. Wraps a SourceAst and maintain state such as module for the input and whether the input is an extern. Also calculates provided and required types.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CompilerInput(SourceAst ast)
CompilerInput(SourceAst ast, boolean isExtern)
CompilerInput(SourceAst ast, InputId inputId, boolean isExtern)
CompilerInput(SourceAst ast, String inputId, boolean isExtern)
CompilerInput(SourceFile file)
CompilerInput(SourceFile file, boolean isExtern)

Method Summary

Modifier and Type	Method and Description
void	addProvide(String provide) Registers a type that this input defines.
void	addRequire(String require) Registers a type that this input depends on.
void	clearAst() Removes any references to root node of the AST.
Node	getAstRoot(AbstractCompiler compiler) Gets the root node of the AST for the source file this represents.
String	getCode()
InputId	getInputId() Returns a name for this input.
int	getLineOffset(int lineno)
JSModule	getModule() Returns the module to which the input belongs.
String	getName() Returns a name for this input.
int	getNumLines()
String	getPathRelativeToClosureBase() Gets the path relative to closure-base, if one is available.
Collection<String>	getProvides() Gets a list of types provided by this input.
Collection<String>	getRequires() Gets a list of types depended on by this input.
SourceFile	getSourceFile() Returns the source file the generated AST represents.
boolean	isExtern()
boolean	isModule() Whether the symbol is provided by a module
void	setCompiler(AbstractCompiler compiler) Sets an abstract compiler for doing parsing.
void	setModule(JSModule module) Sets the module to which the input belongs.
void	setSourceFile(SourceFile file) Sets the source file the generated AST represents.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CompilerInput

public CompilerInput(SourceAst ast)

CompilerInput

public CompilerInput(SourceAst ast,
                     boolean isExtern)

CompilerInput

public CompilerInput(SourceAst ast,
                     String inputId,
                     boolean isExtern)

CompilerInput

public CompilerInput(SourceAst ast,
                     InputId inputId,
                     boolean isExtern)

CompilerInput

public CompilerInput(SourceFile file)

CompilerInput

public CompilerInput(SourceFile file,
                     boolean isExtern)

Method Detail

getInputId

public InputId getInputId()

Returns a name for this input. Must be unique across all inputs.

Specified by:

getInputId in interface SourceAst

Returns:

The input id associated with this AST

getName

public String getName()

Returns a name for this input. Must be unique across all inputs.

Specified by:

getName in interface DependencyInfo

getPathRelativeToClosureBase

public String getPathRelativeToClosureBase()

Gets the path relative to closure-base, if one is available.

Specified by:

getPathRelativeToClosureBase in interface DependencyInfo

getAstRoot

public Node getAstRoot(AbstractCompiler compiler)

Description copied from interface: SourceAst

Gets the root node of the AST for the source file this represents. The AST is lazily instantiated and cached.

Specified by:

getAstRoot in interface SourceAst

clearAst

public void clearAst()

Description copied from interface: SourceAst

Removes any references to root node of the AST. If it is requested again, another parse will be performed. This method is needed to allow the ASTs to be garbage collected if the inputs are still around after compilation.

Specified by:

clearAst in interface SourceAst

getSourceFile

public SourceFile getSourceFile()

Description copied from interface: SourceAst

Returns the source file the generated AST represents.

Specified by:

getSourceFile in interface SourceAst

setSourceFile

public void setSourceFile(SourceFile file)

Description copied from interface: SourceAst

Sets the source file the generated AST represents. This can be called after deserializing if access to the source file is needed. If a different file is provided than that with which this was created, an IllegalStateException will be thrown.

Specified by:

setSourceFile in interface SourceAst

setCompiler

public void setCompiler(AbstractCompiler compiler)

Sets an abstract compiler for doing parsing.

getRequires

public Collection<String> getRequires()

Gets a list of types depended on by this input.

Specified by:

getRequires in interface DependencyInfo

getProvides

public Collection<String> getProvides()

Gets a list of types provided by this input.

Specified by:

getProvides in interface DependencyInfo

addProvide

public void addProvide(String provide)

Registers a type that this input defines.

addRequire

public void addRequire(String require)

Registers a type that this input depends on.

getCode

public String getCode()
               throws IOException

Throws:

IOException

getModule

public JSModule getModule()

Returns the module to which the input belongs.

setModule

public void setModule(JSModule module)

Sets the module to which the input belongs.

isExtern

public boolean isExtern()

getLineOffset

public int getLineOffset(int lineno)

getNumLines

public int getNumLines()

Returns:

The number of lines in this input.

toString

public String toString()

Overrides:

toString in class Object

isModule

public boolean isModule()

Description copied from interface: DependencyInfo

Whether the symbol is provided by a module

Specified by:

isModule in interface DependencyInfo