com.google.javascript.jscomp

Class CompilerInput

java.lang.Object

com.google.javascript.jscomp.CompilerInput

All Implemented Interfaces:

DependencyInfo, SourceAst, java.io.Serializable

public class CompilerInput
extends java.lang.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

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	CompilerInput.DepsFinder

Nested classes/interfaces inherited from interface com.google.javascript.jscomp.deps.DependencyInfo

DependencyInfo.Base

Field Summary

Fields

Modifier and Type	Field and Description
private SourceAst	ast
private AbstractCompiler	compiler
private boolean	generatedDependencyInfoFromSource
private boolean	generatedLoadFlags
private InputId	id
private java.util.Map<java.lang.String,java.lang.String>	loadFlags
private JSModule	module
(package private) static DiagnosticType	MODULE_CONFLICT
private java.util.Set<java.lang.String>	provides
private java.util.Set<java.lang.String>	requires
private static long	serialVersionUID

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	addProvide(java.lang.String provide) Registers a type that this input defines.
void	addRequire(java.lang.String require) Registers a type that this input depends on.
private void	checkErrorManager()
void	clearAst() Removes any references to root node of the AST.
private void	determineLoadFlagsIfNecessary() Parses the file to determine the load flags if necessary, which includes the module type and the language version.
Node	getAstRoot(AbstractCompiler compiler) Gets the root node of the AST for the source file this represents.
java.lang.String	getCode()
InputId	getInputId() Returns a name for this input.
int	getLineOffset(int lineno)
com.google.common.collect.ImmutableMap<java.lang.String,java.lang.String>	getLoadFlags() Gets the loading information for this file.
JSModule	getModule() Returns the module to which the input belongs.
java.lang.String	getName() Returns a name for this input.
int	getNumLines()
java.lang.String	getPathRelativeToClosureBase() Gets the path relative to closure-base, if one is available.
java.util.Collection<java.lang.String>	getProvides() Gets a list of types provided by this input.
java.util.Collection<java.lang.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
(package private) void	overrideModule(JSModule module) Overrides the module to which the input belongs.
private void	regenerateDependencyInfoIfNecessary() Regenerates the provides/requires if we need to do so.
void	setCompiler(AbstractCompiler compiler) Sets an abstract compiler for doing parsing.
(package private) void	setIsExtern(boolean isExtern)
void	setModule(JSModule module) Sets the module to which the input belongs.
void	setSourceFile(SourceFile file) Sets the source file the generated AST represents.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

MODULE_CONFLICT

static final DiagnosticType MODULE_CONFLICT

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

module

private JSModule module

id

private final InputId id

ast

private final SourceAst ast

loadFlags

private final java.util.Map<java.lang.String,java.lang.String> loadFlags

provides

private final java.util.Set<java.lang.String> provides

requires

private final java.util.Set<java.lang.String> requires

generatedDependencyInfoFromSource

private boolean generatedDependencyInfoFromSource

generatedLoadFlags

private boolean generatedLoadFlags

compiler

private transient AbstractCompiler compiler

Constructor Detail

CompilerInput

public CompilerInput(SourceAst ast)

CompilerInput

public CompilerInput(SourceAst ast,
                     boolean isExtern)

CompilerInput

public CompilerInput(SourceAst ast,
                     java.lang.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 java.lang.String getName()

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

Specified by:

getName in interface DependencyInfo

getPathRelativeToClosureBase

public java.lang.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.

checkErrorManager

private void checkErrorManager()

getRequires

public java.util.Collection<java.lang.String> getRequires()

Gets a list of types depended on by this input.

Specified by:

getRequires in interface DependencyInfo

getProvides

public java.util.Collection<java.lang.String> getProvides()

Gets a list of types provided by this input.

Specified by:

getProvides in interface DependencyInfo

addProvide

public void addProvide(java.lang.String provide)

Registers a type that this input defines.

addRequire

public void addRequire(java.lang.String require)

Registers a type that this input depends on.

regenerateDependencyInfoIfNecessary

private void regenerateDependencyInfoIfNecessary()
                                          throws java.io.IOException

Regenerates the provides/requires if we need to do so.

Throws:

java.io.IOException

determineLoadFlagsIfNecessary

private void determineLoadFlagsIfNecessary()
                                    throws java.io.IOException

Parses the file to determine the load flags if necessary, which includes the module type and the language version. This calls regenerateDependencyInfoIfNecessary() since non-JsAst inputs don't need any additional parsing, and either case may add some pre-parse load flags, anyway.

Throws:

java.io.IOException

getCode

public java.lang.String getCode()
                         throws java.io.IOException

Throws:

java.io.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.

overrideModule

void overrideModule(JSModule module)

Overrides the module to which the input belongs.

isExtern

public boolean isExtern()

setIsExtern

void setIsExtern(boolean isExtern)

getLineOffset

public int getLineOffset(int lineno)

getNumLines

public int getNumLines()

Returns:

The number of lines in this input.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getLoadFlags

public com.google.common.collect.ImmutableMap<java.lang.String,java.lang.String> getLoadFlags()

Description copied from interface: DependencyInfo

Gets the loading information for this file.

Specified by:

getLoadFlags in interface DependencyInfo

isModule

public boolean isModule()

Description copied from interface: DependencyInfo

Whether the symbol is provided by a module

Specified by:

isModule in interface DependencyInfo