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Unified Diff: pkg/analyzer_experimental/lib/src/generated/engine.dart

Issue 12803014: New Analysis Engine translation. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 7 years, 9 months ago
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Index: pkg/analyzer_experimental/lib/src/generated/engine.dart
diff --git a/pkg/analyzer_experimental/lib/src/generated/engine.dart b/pkg/analyzer_experimental/lib/src/generated/engine.dart
index 02832e541f892fb36eb7af3b081f180a786c701f..6b0bdad7e69009ed3d8f8e2267174b01f1b11bc4 100644
--- a/pkg/analyzer_experimental/lib/src/generated/engine.dart
+++ b/pkg/analyzer_experimental/lib/src/generated/engine.dart
@@ -12,8 +12,8 @@ import 'scanner.dart' show Token, CharBufferScanner, StringScanner;
import 'ast.dart' show CompilationUnit, Directive, PartOfDirective;
import 'parser.dart' show Parser;
import 'element.dart';
-import 'resolver.dart' show Namespace, NamespaceBuilder, LibraryResolver;
-import 'html.dart' show HtmlScanner, HtmlScanResult, HtmlParser, HtmlParseResult;
+import 'resolver.dart' show Namespace, NamespaceBuilder, LibraryResolver, HtmlUnitBuilder;
+import 'html.dart' show XmlTagNode, XmlAttributeNode, SimpleXmlVisitor, HtmlScanner, HtmlScanResult, HtmlParser, HtmlParseResult, HtmlUnit;
/**
* The unique instance of the class {@code AnalysisEngine} serves as the entry point for the
@@ -96,15 +96,30 @@ class AnalysisEngine {
}
/**
* The interface {@code AnalysisContext} defines the behavior of objects that represent a context in
- * which analysis can be performed. The context includes such information as the version of the SDK
- * being analyzed against as well as the package-root used to resolve 'package:' URI's. (Both of
- * which are known indirectly through the {@link SourceFactory source factory}.)
+ * which a single analysis can be performed and incrementally maintained. The context includes such
+ * information as the version of the SDK being analyzed against as well as the package-root used to
+ * resolve 'package:' URI's. (Both of which are known indirectly through the {@link SourceFactorysource factory}.)
* <p>
- * They also represent the state of a given analysis, which includes knowing which sources have been
- * included in the analysis (either directly or indirectly) and the results of the analysis. Some
- * analysis results are cached in order to allow the context to balance between memory usage and
- * performance. TODO(brianwilkerson) Decide how this is reflected in the API: a getFoo() and
- * getOrComputeFoo() pair of methods, or a single getFoo(boolean).
+ * An analysis context also represents the state of the analysis, which includes knowing which
+ * sources have been included in the analysis (either directly or indirectly) and the results of the
+ * analysis. Sources must be added and removed from the context using the method{@link #applyChanges(ChangeSet)}, which is also used to notify the context when sources have been
+ * modified and, consequently, previously known results might have been invalidated.
+ * <p>
+ * There are two ways to access the results of the analysis. The most common is to use one of the
+ * 'get' methods to access the results. The 'get' methods have the advantage that they will always
+ * return quickly, but have the disadvantage that if the results are not currently available they
+ * will return either nothing or in some cases an incomplete result. The second way to access
+ * results is by using one of the 'compute' methods. The 'compute' methods will always attempt to
+ * compute the requested results but might block the caller for a significant period of time.
+ * <p>
+ * When results have been invalidated, have never been computed (as is the case for newly added
+ * sources), or have been removed from the cache, they are <b>not</b> automatically recreated. They
+ * will only be recreated if one of the 'compute' methods is invoked.
+ * <p>
+ * However, this is not always acceptable. Some clients need to keep the analysis results
+ * up-to-date. For such clients there is a mechanism that allows them to incrementally perform
+ * needed analysis and get notified of the consequent changes to the analysis results. This
+ * mechanism is realized by the method {@link #performAnalysisTask()}.
* <p>
* Analysis engine allows for having more than one context. This can be used, for example, to
* perform one analysis based on the state of files on disk and a separate analysis based on the
@@ -119,6 +134,61 @@ abstract class AnalysisContext {
*/
void applyChanges(ChangeSet changeSet);
/**
+ * Return an array containing all of the errors associated with the given source. If the errors
+ * are not already known then the source will be analyzed in order to determine the errors
+ * associated with it.
+ * @param source the source whose errors are to be returned
+ * @return all of the errors associated with the given source
+ * @throws AnalysisException if the errors could not be determined because the analysis could not
+ * be performed
+ * @see #getErrors(Source)
+ */
+ List<AnalysisError> computeErrors(Source source);
+ /**
+ * Return the element model corresponding to the HTML file defined by the given source. If the
+ * element model does not yet exist it will be created. The process of creating an element model
+ * for an HTML file can long-running, depending on the size of the file and the number of
+ * libraries that are defined in it (via script tags) that also need to have a model built for
+ * them.
+ * @param source the source defining the HTML file whose element model is to be returned
+ * @return the element model corresponding to the HTML file defined by the given source
+ * @throws AnalysisException if the element model could not be determined because the analysis
+ * could not be performed
+ * @see #getHtmlElement(Source)
+ */
+ HtmlElement computeHtmlElement(Source source);
+ /**
+ * Return the kind of the given source, computing it's kind if it is not already known. Return{@link SourceKind#UNKNOWN} if the source is not contained in this context.
+ * @param source the source whose kind is to be returned
+ * @return the kind of the given source
+ * @see #getKindOf(Source)
+ */
+ SourceKind computeKindOf(Source source);
+ /**
+ * Return the element model corresponding to the library defined by the given source. If the
+ * element model does not yet exist it will be created. The process of creating an element model
+ * for a library can long-running, depending on the size of the library and the number of
+ * libraries that are imported into it that also need to have a model built for them.
+ * @param source the source defining the library whose element model is to be returned
+ * @return the element model corresponding to the library defined by the given source
+ * @throws AnalysisException if the element model could not be determined because the analysis
+ * could not be performed
+ * @see #getLibraryElement(Source)
+ */
+ LibraryElement computeLibraryElement(Source source);
+ /**
+ * Return the line information for the given source, or {@code null} if the source is not of a
+ * recognized kind (neither a Dart nor HTML file). If the line information was not previously
+ * known it will be created. The line information is used to map offsets from the beginning of the
+ * source to line and column pairs.
+ * @param source the source whose line information is to be returned
+ * @return the line information for the given source
+ * @throws AnalysisException if the line information could not be determined because the analysis
+ * could not be performed
+ * @see #getLineInfo(Source)
+ */
+ LineInfo computeLineInfo(Source source);
+ /**
* Create a new context in which analysis can be performed. Any sources in the specified container
* will be removed from this context and added to the newly created context.
* @param container the container containing sources that should be removed from this context and
@@ -127,7 +197,11 @@ abstract class AnalysisContext {
*/
AnalysisContext extractContext(SourceContainer container);
/**
- * Return the element referenced by the given location.
+ * Return the element referenced by the given location, or {@code null} if the element is not
+ * immediately available or if there is no element with the given location. The latter condition
+ * can occur, for example, if the location describes an element from a different context or if the
+ * element has been removed from this context as a result of some change since it was originally
+ * obtained.
* @param location the reference describing the element to be returned
* @return the element referenced by the given location
*/
@@ -135,43 +209,55 @@ abstract class AnalysisContext {
/**
* Return an array containing all of the errors associated with the given source. The array will
* be empty if the source is not known to this context or if there are no errors in the source.
+ * The errors contained in the array can be incomplete.
* @param source the source whose errors are to be returned
* @return all of the errors associated with the given source
- * @throws AnalysisException if the errors could not be determined because the analysis could not
- * be performed
+ * @see #computeErrors(Source)
*/
List<AnalysisError> getErrors(Source source);
/**
- * Return the element model corresponding to the HTML file defined by the given source.
+ * Return the element model corresponding to the HTML file defined by the given source, or{@code null} if the source does not represent an HTML file, the element representing the file
+ * has not yet been created, or the analysis of the HTML file failed for some reason.
* @param source the source defining the HTML file whose element model is to be returned
* @return the element model corresponding to the HTML file defined by the given source
+ * @see #computeHtmlElement(Source)
*/
HtmlElement getHtmlElement(Source source);
/**
+ * Return the sources for the HTML files that reference the given compilation unit. If the source
+ * does not represent a Dart source or is not known to this context, the returned array will be
+ * empty. The contents of the array can be incomplete.
+ * @param source the source referenced by the returned HTML files
+ * @return the sources for the HTML files that reference the given compilation unit
+ */
+ List<Source> getHtmlFilesReferencing(Source source);
+ /**
* Return an array containing all of the sources known to this context that represent HTML files.
+ * The contents of the array can be incomplete.
* @return the sources known to this context that represent HTML files
*/
List<Source> get htmlSources;
/**
- * Return the kind of the given source if it is already known, or {@code null} if the kind is not
- * already known.
+ * Return the kind of the given source, or {@code null} if the kind is not known to this context.
* @param source the source whose kind is to be returned
* @return the kind of the given source
- * @see #getOrComputeKindOf(Source)
+ * @see #computeKindOf(Source)
*/
- SourceKind getKnownKindOf(Source source);
+ SourceKind getKindOf(Source source);
/**
* Return an array containing all of the sources known to this context that represent the defining
* compilation unit of a library that can be run within a browser. The sources that are returned
* represent libraries that have a 'main' method and are either referenced by an HTML file or
- * import, directly or indirectly, a client-only library.
+ * import, directly or indirectly, a client-only library. The contents of the array can be
+ * incomplete.
* @return the sources known to this context that represent the defining compilation unit of a
* library that can be run within a browser
*/
List<Source> get launchableClientLibrarySources;
/**
* Return an array containing all of the sources known to this context that represent the defining
- * compilation unit of a library that can be run outside of a browser.
+ * compilation unit of a library that can be run outside of a browser. The contents of the array
+ * can be incomplete.
* @return the sources known to this context that represent the defining compilation unit of a
* library that can be run outside of a browser
*/
@@ -183,48 +269,64 @@ abstract class AnalysisContext {
* multiple identically named libraries. If the source represents the defining compilation unit of
* a library, then the returned array will contain the given source as its only element. If the
* source does not represent a Dart source or is not known to this context, the returned array
- * will be empty.
+ * will be empty. The contents of the array can be incomplete.
* @param source the source contained in the returned libraries
* @return the sources for the libraries containing the given source
*/
List<Source> getLibrariesContaining(Source source);
/**
- * Return the element model corresponding to the library defined by the given source. If the
- * element model does not yet exist it will be created. The process of creating an element model
- * for a library can long-running, depending on the size of the library and the number of
- * libraries that are imported into it that also need to have a model built for them.
- * @param source the source defining the library whose element model is to be returned
- * @return the element model corresponding to the library defined by the given source or{@code null} if the element model could not be determined because the analysis could
- * not be performed
- */
- LibraryElement getLibraryElement(Source source);
- /**
- * Return the element model corresponding to the library defined by the given source, or{@code null} if the element model does not currently exist or if the analysis could not be
- * performed.
+ * Return the element model corresponding to the library defined by the given source, or{@code null} if the element model does not currently exist or if the library cannot be analyzed
+ * for some reason.
* @param source the source defining the library whose element model is to be returned
* @return the element model corresponding to the library defined by the given source
*/
- LibraryElement getLibraryElementOrNull(Source source);
+ LibraryElement getLibraryElement(Source source);
/**
* Return an array containing all of the sources known to this context that represent the defining
- * compilation unit of a library.
+ * compilation unit of a library. The contents of the array can be incomplete.
* @return the sources known to this context that represent the defining compilation unit of a
* library
*/
List<Source> get librarySources;
/**
- * Return the kind of the given source, computing it's kind if it is not already known.
- * @param source the source whose kind is to be returned
- * @return the kind of the given source
- * @see #getKnownKindOf(Source)
+ * Return the line information for the given source, or {@code null} if the line information is
+ * not known. The line information is used to map offsets from the beginning of the source to line
+ * and column pairs.
+ * @param source the source whose line information is to be returned
+ * @return the line information for the given source
+ * @see #computeLineInfo(Source)
*/
- SourceKind getOrComputeKindOf(Source source);
+ LineInfo getLineInfo(Source source);
/**
* Return the source factory used to create the sources that can be analyzed in this context.
* @return the source factory used to create the sources that can be analyzed in this context
*/
SourceFactory get sourceFactory;
/**
+ * Return {@code true} if the given source is known to be the defining compilation unit of a
+ * library that can be run on a client (references 'dart:html', either directly or indirectly).
+ * <p>
+ * <b>Note:</b> In addition to the expected case of returning {@code false} if the source is known
+ * to be a library that cannot be run on a client, this method will also return {@code false} if
+ * the source is not known to be a library or if we do not know whether it can be run on a client.
+ * @param librarySource the source being tested
+ * @return {@code true} if the given source is known to be a library that can be run on a client
+ */
+ bool isClientLibrary(Source librarySource);
+ /**
+ * Return {@code true} if the given source is known to be the defining compilation unit of a
+ * library that can be run on the server (does not reference 'dart:html', either directly or
+ * indirectly).
+ * <p>
+ * <b>Note:</b> In addition to the expected case of returning {@code false} if the source is known
+ * to be a library that cannot be run on the server, this method will also return {@code false} if
+ * the source is not known to be a library or if we do not know whether it can be run on the
+ * server.
+ * @param librarySource the source being tested
+ * @return {@code true} if the given source is known to be a library that can be run on the server
+ */
+ bool isServerLibrary(Source librarySource);
+ /**
* Add the sources contained in the specified context to this context's collection of sources.
* This method is called when an existing context's pubspec has been removed, and the contained
* sources should be reanalyzed as part of this context.
@@ -238,7 +340,7 @@ abstract class AnalysisContext {
* @return the AST structure representing the content of the source
* @throws AnalysisException if the analysis could not be performed
*/
- CompilationUnit parse(Source source);
+ CompilationUnit parseCompilationUnit(Source source);
/**
* Parse a single HTML source to produce an AST structure. The resulting HTML AST structure may or
* may not be resolved, and may have a slightly different structure depending upon whether it is
@@ -247,22 +349,49 @@ abstract class AnalysisContext {
* @return the parse result (not {@code null})
* @throws AnalysisException if the analysis could not be performed
*/
- HtmlParseResult parseHtml(Source source);
+ HtmlUnit parseHtmlUnit(Source source);
/**
* Perform the next unit of work required to keep the analysis results up-to-date and return
* information about the consequent changes to the analysis results. If there were no results the
- * returned array will be empty. This method can be long running.
+ * returned array will be empty. If there are no more units of work required, then this method
+ * returns {@code null}. This method can be long running.
* @return an array containing notices of changes to the analysis results
*/
List<ChangeNotice> performAnalysisTask();
/**
* Parse and resolve a single source within the given context to produce a fully resolved AST.
- * @param source the source to be parsed and resolved
- * @param library the library defining the context in which the source file is to be resolved
+ * @param unitSource the source to be parsed and resolved
+ * @param library the library containing the source to be resolved
+ * @return the result of resolving the AST structure representing the content of the source in the
+ * context of the given library
+ * @throws AnalysisException if the analysis could not be performed
+ */
+ CompilationUnit resolveCompilationUnit(Source unitSource, LibraryElement library);
+ /**
+ * Parse and resolve a single source within the given context to produce a fully resolved AST.
+ * @param unitSource the source to be parsed and resolved
+ * @param librarySource the source of the defining compilation unit of the library containing the
+ * source to be resolved
+ * @return the result of resolving the AST structure representing the content of the source in the
+ * context of the given library
+ * @throws AnalysisException if the analysis could not be performed
+ */
+ CompilationUnit resolveCompilationUnit2(Source unitSource, Source librarySource);
+ /**
+ * Parse and resolve a single source within the given context to produce a fully resolved AST.
+ * @param htmlSource the source to be parsed and resolved
* @return the result of resolving the AST structure representing the content of the source
* @throws AnalysisException if the analysis could not be performed
*/
- CompilationUnit resolve(Source source, LibraryElement library);
+ HtmlUnit resolveHtmlUnit(Source htmlSource);
+ /**
+ * Set the contents of the given source to the given contents and mark the source as having
+ * changed. This has the effect of overriding the default contents of the source. If the contents
+ * are {@code null} the override is removed so that the default contents will be returned.
+ * @param source the source whose contents are being overridden
+ * @param contents the new contents of the source
+ */
+ void setContents(Source source, String contents);
/**
* Set the source factory used to create the sources that can be analyzed in this context to the
* given source factory. Clients can safely assume that all analysis results have been
@@ -288,18 +417,18 @@ class AnalysisException extends JavaException {
* Initialize a newly created exception.
*/
AnalysisException() : super() {
- _jtd_constructor_123_impl();
+ _jtd_constructor_124_impl();
}
- _jtd_constructor_123_impl() {
+ _jtd_constructor_124_impl() {
}
/**
* Initialize a newly created exception to have the given message.
* @param message the message associated with the exception
*/
AnalysisException.con1(String message) : super(message) {
- _jtd_constructor_124_impl(message);
+ _jtd_constructor_125_impl(message);
}
- _jtd_constructor_124_impl(String message) {
+ _jtd_constructor_125_impl(String message) {
}
/**
* Initialize a newly created exception to have the given message and cause.
@@ -307,98 +436,49 @@ class AnalysisException extends JavaException {
* @param cause the underlying exception that caused this exception
*/
AnalysisException.con2(String message, Exception cause) : super(message, cause) {
- _jtd_constructor_125_impl(message, cause);
+ _jtd_constructor_126_impl(message, cause);
}
- _jtd_constructor_125_impl(String message, Exception cause) {
+ _jtd_constructor_126_impl(String message, Exception cause) {
}
/**
* Initialize a newly created exception to have the given cause.
* @param cause the underlying exception that caused this exception
*/
AnalysisException.con3(Exception cause) : super.withCause(cause) {
- _jtd_constructor_126_impl(cause);
+ _jtd_constructor_127_impl(cause);
}
- _jtd_constructor_126_impl(Exception cause) {
+ _jtd_constructor_127_impl(Exception cause) {
}
}
/**
- * Instances of the class {@code ChangeNotice} represent a change to the analysis results associated
- * with a given source.
+ * The interface {@code ChangeNotice} defines the behavior of objects that represent a change to the
+ * analysis results associated with a given source.
+ * @coverage dart.engine
*/
-class ChangeNotice {
- /**
- * The source for which the result is being reported.
- */
- Source _source;
- /**
- * The fully resolved AST that changed as a result of the analysis, or {@code null} if the AST was
- * not changed.
- */
- CompilationUnit _compilationUnit;
- /**
- * The errors that changed as a result of the analysis, or {@code null} if errors were not
- * changed.
- */
- List<AnalysisError> _errors;
- /**
- * The line information associated with the source, or {@code null} if errors were not changed.
- */
- LineInfo _lineInfo;
- /**
- * An empty array of change notices.
- */
- static List<ChangeNotice> EMPTY_ARRAY = new List<ChangeNotice>(0);
- /**
- * Initialize a newly created result representing the fact that the errors associated with a
- * source have changed.
- * @param source the source for which the result is being reported
- * @param errors the errors that changed as a result of the analysis
- * @param the line information associated with the source
- */
- ChangeNotice.con1(Source source2, List<AnalysisError> errors2, LineInfo lineInfo3) {
- _jtd_constructor_127_impl(source2, errors2, lineInfo3);
- }
- _jtd_constructor_127_impl(Source source2, List<AnalysisError> errors2, LineInfo lineInfo3) {
- this._source = source2;
- this._errors = errors2;
- this._lineInfo = lineInfo3;
- }
- /**
- * Initialize a newly created result representing the fact that the resolution of a source has
- * changed.
- * @param source the source for which the result is being reported
- * @param compilationUnit the fully resolved AST produced as a result of the analysis
- */
- ChangeNotice.con2(Source source3, CompilationUnit compilationUnit9) {
- _jtd_constructor_128_impl(source3, compilationUnit9);
- }
- _jtd_constructor_128_impl(Source source3, CompilationUnit compilationUnit9) {
- this._source = source3;
- this._compilationUnit = compilationUnit9;
- }
+abstract class ChangeNotice {
/**
* Return the fully resolved AST that changed as a result of the analysis, or {@code null} if the
* AST was not changed.
* @return the fully resolved AST that changed as a result of the analysis
*/
- CompilationUnit get compilationUnit => _compilationUnit;
+ CompilationUnit get compilationUnit;
/**
* Return the errors that changed as a result of the analysis, or {@code null} if errors were not
* changed.
* @return the errors that changed as a result of the analysis
*/
- List<AnalysisError> get errors => _errors;
+ List<AnalysisError> get errors;
/**
* Return the line information associated with the source, or {@code null} if errors were not
* changed.
* @return the line information associated with the source
*/
- LineInfo get lineInfo => _lineInfo;
+ LineInfo get lineInfo;
/**
* Return the source for which the result is being reported.
* @return the source for which the result is being reported
*/
- Source get source => _source;
+ Source get source;
}
/**
* Instances of the class {@code ChangeSet} indicate what sources have been added, changed, or
@@ -407,15 +487,15 @@ class ChangeNotice {
*/
class ChangeSet {
/**
- * A table mapping the sources that have been added to their contents.
+ * A list containing the sources that have been added.
*/
- Map<Source, String> _added3 = new Map<Source, String>();
+ List<Source> _added2 = new List<Source>();
/**
- * A table mapping the sources that have been changed to their contents.
+ * A list containing the sources that have been changed.
*/
- Map<Source, String> _changed3 = new Map<Source, String>();
+ List<Source> _changed2 = new List<Source>();
/**
- * A list containing the sources that have been removed..
+ * A list containing the sources that have been removed.
*/
List<Source> _removed2 = new List<Source>();
/**
@@ -433,20 +513,7 @@ class ChangeSet {
* @param source the source that was added
*/
void added(Source source) {
- added2(source, null);
- }
- /**
- * Record that the specified source has been added and that it has the given content. If the
- * content is non-{@code null}, this has the effect of overriding the default contents of the
- * source. If the contents are {@code null}, any previous override is removed so that the default
- * contents will be used.
- * @param source the source that was added
- * @param content the content of the new source
- */
- void added2(Source source, String content) {
- if (source != null) {
- _added3[source] = content;
- }
+ _added2.add(source);
}
/**
* Record that the specified source has been changed and that it's content is the default contents
@@ -454,31 +521,18 @@ class ChangeSet {
* @param source the source that was changed
*/
void changed(Source source) {
- changed2(source, null);
+ _changed2.add(source);
}
/**
- * Record that the specified source has been changed and that it now has the given content. If the
- * content is non-{@code null}, this has the effect of overriding the default contents of the
- * source. If the contents are {@code null}, any previous override is removed so that the default
- * contents will be used.
- * @param source the source that was changed
- * @param content the new content of the source
- */
- void changed2(Source source, String content) {
- if (source != null) {
- _changed3[source] = content;
- }
- }
- /**
- * Return a table mapping the sources that have been added to their contents.
- * @return a table mapping the sources that have been added to their contents
+ * Return a collection of the sources that have been added.
+ * @return a collection of the sources that have been added
*/
- Map<Source, String> get addedWithContent => _added3;
+ List<Source> get added3 => _added2;
/**
- * Return a table mapping the sources that have been changed to their contents.
- * @return a table mapping the sources that have been changed to their contents
+ * Return a collection of sources that have been changed.
+ * @return a collection of sources that have been changed
*/
- Map<Source, String> get changedWithContent => _changed3;
+ List<Source> get changed3 => _changed2;
/**
* Return a list containing the sources that were removed.
* @return a list containing the sources that were removed
@@ -493,7 +547,7 @@ class ChangeSet {
* Return {@code true} if this change set does not contain any changes.
* @return {@code true} if this change set does not contain any changes
*/
- bool isEmpty() => _added3.isEmpty && _changed3.isEmpty && _removed2.isEmpty && _removedContainers.isEmpty;
+ bool isEmpty() => _added2.isEmpty && _changed2.isEmpty && _removed2.isEmpty && _removedContainers.isEmpty;
/**
* Record that the specified source has been removed.
* @param source the source that was removed
@@ -524,33 +578,26 @@ class AnalysisContextImpl implements AnalysisContext {
*/
SourceFactory _sourceFactory;
/**
- * A table mapping sources known to the context to the information known about the source.
+ * A table mapping the sources known to the context to the information known about the source.
*/
Map<Source, SourceInfo> _sourceMap = new Map<Source, SourceInfo>();
/**
- * A cache mapping sources to the compilation units that were produced for the contents of the
- * source.
- */
- Map<Source, CompilationUnit> _parseCache = new Map<Source, CompilationUnit>();
- /**
- * A cache mapping sources to the html parse results that were produced for the contents of the
+ * A table mapping sources to the change notices that are waiting to be returned related to that
* source.
*/
- Map<Source, HtmlParseResult> _htmlParseCache = new Map<Source, HtmlParseResult>();
+ Map<Source, ChangeNoticeImpl> _pendingNotices = new Map<Source, ChangeNoticeImpl>();
/**
- * A cache mapping sources (of the defining compilation units of libraries) to the library
- * elements for those libraries.
+ * The object used to synchronize access to all of the caches.
*/
- Map<Source, LibraryElement> _libraryElementCache = new Map<Source, LibraryElement>();
+ Object _cacheLock = new Object();
/**
- * A cache mapping sources (of the defining compilation units of libraries) to the public
- * namespace for that library.
+ * The name of the 'src' attribute in a HTML tag.
*/
- Map<Source, Namespace> _publicNamespaceCache = new Map<Source, Namespace>();
+ static String _ATTRIBUTE_SRC = "src";
/**
- * The object used to synchronize access to all of the caches.
+ * The name of the 'script' tag in an HTML file.
*/
- Object _cacheLock = new Object();
+ static String _TAG_SCRIPT = "script";
/**
* Initialize a newly created analysis context.
*/
@@ -561,26 +608,14 @@ class AnalysisContextImpl implements AnalysisContext {
return;
}
{
- List<Source> addedSources = new List<Source>();
- for (MapEntry<Source, String> entry in getMapEntrySet(changeSet.addedWithContent)) {
- Source source = entry.getKey();
- _sourceFactory.setContents(source, entry.getValue());
- addedSources.add(source);
- }
- List<Source> changedSources = new List<Source>();
- for (MapEntry<Source, String> entry in getMapEntrySet(changeSet.changedWithContent)) {
- Source source = entry.getKey();
- _sourceFactory.setContents(source, entry.getValue());
- changedSources.add(source);
- }
List<Source> removedSources = new List<Source>.from(changeSet.removed);
for (SourceContainer container in changeSet.removedContainers) {
addSourcesInContainer(removedSources, container);
}
- for (Source source in addedSources) {
+ for (Source source in changeSet.added3) {
sourceAvailable(source);
}
- for (Source source in changedSources) {
+ for (Source source in changeSet.changed3) {
sourceChanged(source);
}
for (Source source in removedSources) {
@@ -588,6 +623,106 @@ class AnalysisContextImpl implements AnalysisContext {
}
}
}
+ List<AnalysisError> computeErrors(Source source) {
+ {
+ CompilationUnitInfo info = getCompilationUnitInfo(source);
+ if (info == null) {
+ return AnalysisError.NO_ERRORS;
+ }
+ if (info.hasInvalidParseErrors()) {
+ parseCompilationUnit(source);
+ }
+ if (info.hasInvalidResolutionErrors()) {
+ }
+ return info.allErrors;
+ }
+ }
+ HtmlElement computeHtmlElement(Source source) {
+ if (!AnalysisEngine.isHtmlFileName(source.shortName)) {
+ return null;
+ }
+ {
+ HtmlUnitInfo htmlUnitInfo = getHtmlUnitInfo(source);
+ if (htmlUnitInfo == null) {
+ return null;
+ }
+ HtmlElement element24 = htmlUnitInfo.element;
+ if (element24 == null) {
+ HtmlUnit unit = htmlUnitInfo.resolvedUnit;
+ if (unit == null) {
+ unit = htmlUnitInfo.parsedUnit;
+ if (unit == null) {
+ unit = parseHtmlUnit(source);
+ }
+ }
+ HtmlUnitBuilder builder = new HtmlUnitBuilder(this);
+ element24 = builder.buildHtmlElement2(source, unit);
+ htmlUnitInfo.resolvedUnit = unit;
+ htmlUnitInfo.element = element24;
+ }
+ return element24;
+ }
+ }
+ SourceKind computeKindOf(Source source) {
+ {
+ SourceInfo sourceInfo = getSourceInfo(source);
+ if (sourceInfo == null) {
+ return SourceKind.UNKNOWN;
+ } else if (sourceInfo is DartInfo) {
+ sourceInfo = internalComputeKindOf(source, sourceInfo);
+ }
+ return sourceInfo.kind;
+ }
+ }
+ LibraryElement computeLibraryElement(Source source) {
+ if (!AnalysisEngine.isDartFileName(source.shortName)) {
+ return null;
+ }
+ {
+ LibraryInfo libraryInfo = getLibraryInfo(source);
+ if (libraryInfo == null) {
+ return null;
+ }
+ LibraryElement element25 = libraryInfo.element;
+ if (element25 == null) {
+ if (computeKindOf(source) != SourceKind.LIBRARY) {
+ return null;
+ }
+ LibraryResolver resolver = new LibraryResolver.con1(this);
+ try {
+ element25 = resolver.resolveLibrary(source, true);
+ if (element25 != null) {
+ libraryInfo.element = element25;
+ }
+ } on AnalysisException catch (exception) {
+ AnalysisEngine.instance.logger.logError2("Could not resolve the library ${source.fullName}", exception);
+ }
+ }
+ return element25;
+ }
+ }
+ LineInfo computeLineInfo(Source source) {
+ {
+ SourceInfo sourceInfo = getSourceInfo(source);
+ if (sourceInfo == null) {
+ return null;
+ }
+ LineInfo lineInfo4 = sourceInfo.lineInfo;
+ if (lineInfo4 == null) {
+ if (sourceInfo is DartInfo) {
+ sourceInfo = internalComputeKindOf(source, sourceInfo);
+ }
+ if (sourceInfo is HtmlUnitInfo) {
+ parseHtmlUnit(source);
+ lineInfo4 = sourceInfo.lineInfo;
+ } else if (sourceInfo is CompilationUnitInfo) {
+ parseCompilationUnit(source);
+ lineInfo4 = sourceInfo.lineInfo;
+ }
+ }
+ return lineInfo4;
+ }
+ }
AnalysisContext extractContext(SourceContainer container) {
AnalysisContextImpl newContext = AnalysisEngine.instance.createAnalysisContext() as AnalysisContextImpl;
List<Source> sourcesToRemove = new List<Source>();
@@ -596,95 +731,132 @@ class AnalysisContextImpl implements AnalysisContext {
Source source = entry.getKey();
if (container.contains(source)) {
sourcesToRemove.add(source);
- newContext._sourceMap[source] = new SourceInfo.con2(entry.getValue());
+ newContext._sourceMap[source] = entry.getValue().copy();
}
}
}
return newContext;
}
Element getElement(ElementLocation location) {
- throw new UnsupportedOperationException();
+ List<String> components2 = ((location as ElementLocationImpl)).components;
+ ElementImpl element;
+ {
+ Source librarySource = _sourceFactory.fromEncoding(components2[0]);
+ try {
+ element = computeLibraryElement(librarySource) as ElementImpl;
+ } on AnalysisException catch (exception) {
+ return null;
+ }
+ }
+ for (int i = 1; i < components2.length; i++) {
+ if (element == null) {
+ return null;
+ }
+ element = element.getChild(components2[i]);
+ }
+ return element;
}
List<AnalysisError> getErrors(Source source) {
- throw new UnsupportedOperationException();
+ {
+ SourceInfo info = getSourceInfo(source);
+ if (info is CompilationUnitInfo) {
+ return ((info as CompilationUnitInfo)).allErrors;
+ }
+ return AnalysisError.NO_ERRORS;
+ }
}
HtmlElement getHtmlElement(Source source) {
- if (!AnalysisEngine.isHtmlFileName(source.shortName)) {
+ {
+ SourceInfo info = getSourceInfo(source);
+ if (info is HtmlUnitInfo) {
+ return ((info as HtmlUnitInfo)).element;
+ }
return null;
}
- throw new UnsupportedOperationException();
}
- List<Source> get htmlSources => getSources(SourceKind.HTML);
- SourceKind getKnownKindOf(Source source) {
- String name = source.shortName;
- if (AnalysisEngine.isHtmlFileName(name)) {
- return SourceKind.HTML;
- }
- if (!AnalysisEngine.isDartFileName(name)) {
- return SourceKind.UNKNOWN;
- }
+ List<Source> getHtmlFilesReferencing(Source source) {
{
- if (_libraryElementCache.containsKey(source)) {
- return SourceKind.LIBRARY;
- }
- CompilationUnit unit = _parseCache[source];
- if (unit != null && hasPartOfDirective(unit)) {
- return SourceKind.PART;
+ SourceInfo info = getSourceInfo(source);
+ if (info is LibraryInfo) {
+ return ((info as LibraryInfo)).htmlSources;
+ } else if (info is CompilationUnitInfo) {
+ List<Source> sources = new List<Source>();
+ for (Source librarySource in ((info as CompilationUnitInfo)).librarySources) {
+ LibraryInfo libraryInfo = getLibraryInfo(librarySource);
+ for (Source htmlSource in libraryInfo.htmlSources) {
+ sources.add(htmlSource);
+ }
+ }
+ if (!sources.isEmpty) {
+ return new List.from(sources);
+ }
}
+ return Source.EMPTY_ARRAY;
}
- return null;
}
- List<Source> get launchableClientLibrarySources => librarySources;
- List<Source> get launchableServerLibrarySources => librarySources;
- List<Source> getLibrariesContaining(Source source) {
+ List<Source> get htmlSources => getSources(SourceKind.HTML);
+ SourceKind getKindOf(Source source) {
{
- SourceInfo info = _sourceMap[source];
- if (info == null) {
- return Source.EMPTY_ARRAY;
+ SourceInfo sourceInfo = getSourceInfo(source);
+ if (sourceInfo == null) {
+ return SourceKind.UNKNOWN;
}
- return info.librarySources;
+ return sourceInfo.kind;
}
}
- LibraryElement getLibraryElement(Source source) {
- if (!AnalysisEngine.isDartFileName(source.shortName)) {
- return null;
- }
+ List<Source> get launchableClientLibrarySources {
+ List<Source> sources = new List<Source>();
{
- LibraryElement element = _libraryElementCache[source];
- if (element == null) {
- if (getOrComputeKindOf(source) != SourceKind.LIBRARY) {
- return null;
+ for (MapEntry<Source, SourceInfo> entry in getMapEntrySet(_sourceMap)) {
+ Source source = entry.getKey();
+ SourceInfo info = entry.getValue();
+ if (identical(info.kind, SourceKind.LIBRARY) && !source.isInSystemLibrary()) {
+ sources.add(source);
}
- LibraryResolver resolver = new LibraryResolver.con1(this);
- try {
- element = resolver.resolveLibrary(source, true);
- if (element != null) {
- _libraryElementCache[source] = element;
- }
- } on AnalysisException catch (exception) {
- AnalysisEngine.instance.logger.logError2("Could not resolve the library ${source.fullName}", exception);
+ }
+ }
+ return new List.from(sources);
+ }
+ List<Source> get launchableServerLibrarySources {
+ List<Source> sources = new List<Source>();
+ {
+ for (MapEntry<Source, SourceInfo> entry in getMapEntrySet(_sourceMap)) {
+ Source source = entry.getKey();
+ SourceInfo info = entry.getValue();
+ if (identical(info.kind, SourceKind.LIBRARY) && !source.isInSystemLibrary()) {
+ sources.add(source);
}
}
- return element;
}
+ return new List.from(sources);
}
- /**
- * Return the element model corresponding to the library defined by the given source, or{@code null} if the element model does not yet exist.
- * @param source the source defining the library whose element model is to be returned
- * @return the element model corresponding to the library defined by the given source
- */
- LibraryElement getLibraryElementOrNull(Source source) {
+ List<Source> getLibrariesContaining(Source source) {
+ {
+ SourceInfo info = getSourceInfo(source);
+ if (info is CompilationUnitInfo) {
+ return ((info as CompilationUnitInfo)).librarySources;
+ }
+ return Source.EMPTY_ARRAY;
+ }
+ }
+ LibraryElement getLibraryElement(Source source) {
{
- return _libraryElementCache[source];
+ SourceInfo info = getSourceInfo(source);
+ if (info is LibraryInfo) {
+ return ((info as LibraryInfo)).element;
+ }
+ return null;
}
}
List<Source> get librarySources => getSources(SourceKind.LIBRARY);
- SourceKind getOrComputeKindOf(Source source) {
- SourceKind kind = getKnownKindOf(source);
- if (kind != null) {
- return kind;
+ LineInfo getLineInfo(Source source) {
+ {
+ SourceInfo info = getSourceInfo(source);
+ if (info != null) {
+ return info.lineInfo;
+ }
+ return null;
}
- return computeKindOf(source);
}
/**
* Return a namespace containing mappings for all of the public names defined by the given
@@ -693,13 +865,17 @@ class AnalysisContextImpl implements AnalysisContext {
* @return the public namespace of the given library
*/
Namespace getPublicNamespace(LibraryElement library) {
- Source source10 = library.definingCompilationUnit.source;
+ Source source8 = library.definingCompilationUnit.source;
{
- Namespace namespace = _publicNamespaceCache[source10];
+ LibraryInfo libraryInfo = getLibraryInfo(source8);
+ if (libraryInfo == null) {
+ return null;
+ }
+ Namespace namespace = libraryInfo.publicNamespace;
if (namespace == null) {
NamespaceBuilder builder = new NamespaceBuilder();
namespace = builder.createPublicNamespace(library);
- _publicNamespaceCache[source10] = namespace;
+ libraryInfo.publicNamespace = namespace;
}
return namespace;
}
@@ -709,74 +885,131 @@ class AnalysisContextImpl implements AnalysisContext {
* defined by the given source.
* @param source the source defining the library whose public namespace is to be returned
* @return the public namespace corresponding to the library defined by the given source
+ * @throws AnalysisException if the public namespace could not be computed
*/
Namespace getPublicNamespace2(Source source) {
{
- Namespace namespace = _publicNamespaceCache[source];
+ LibraryInfo libraryInfo = getLibraryInfo(source);
+ if (libraryInfo == null) {
+ return null;
+ }
+ Namespace namespace = libraryInfo.publicNamespace;
if (namespace == null) {
- LibraryElement library = getLibraryElement(source);
+ LibraryElement library = computeLibraryElement(source);
if (library == null) {
return null;
}
NamespaceBuilder builder = new NamespaceBuilder();
namespace = builder.createPublicNamespace(library);
- _publicNamespaceCache[source] = namespace;
+ libraryInfo.publicNamespace = namespace;
}
return namespace;
}
}
SourceFactory get sourceFactory => _sourceFactory;
+ bool isClientLibrary(Source librarySource) {
+ SourceInfo sourceInfo = getSourceInfo(librarySource);
+ if (sourceInfo is LibraryInfo) {
+ LibraryInfo libraryInfo = sourceInfo as LibraryInfo;
+ if (libraryInfo.hasInvalidLaunchable() || libraryInfo.hasInvalidClientServer()) {
+ return false;
+ }
+ return libraryInfo.isLaunchable() && libraryInfo.isClient();
+ }
+ return false;
+ }
+ bool isServerLibrary(Source librarySource) {
+ SourceInfo sourceInfo = getSourceInfo(librarySource);
+ if (sourceInfo is LibraryInfo) {
+ LibraryInfo libraryInfo = sourceInfo as LibraryInfo;
+ if (libraryInfo.hasInvalidLaunchable() || libraryInfo.hasInvalidClientServer()) {
+ return false;
+ }
+ return libraryInfo.isLaunchable() && libraryInfo.isServer();
+ }
+ return false;
+ }
void mergeContext(AnalysisContext context) {
{
for (MapEntry<Source, SourceInfo> entry in getMapEntrySet(((context as AnalysisContextImpl))._sourceMap)) {
Source newSource = entry.getKey();
- SourceInfo existingInfo = _sourceMap[newSource];
+ SourceInfo existingInfo = getSourceInfo(newSource);
if (existingInfo == null) {
- _sourceMap[newSource] = new SourceInfo.con2(entry.getValue());
+ _sourceMap[newSource] = entry.getValue().copy();
} else {
}
}
}
}
- CompilationUnit parse(Source source) {
+ CompilationUnit parseCompilationUnit(Source source) {
{
- CompilationUnit unit = _parseCache[source];
+ CompilationUnitInfo compilationUnitInfo = getCompilationUnitInfo(source);
+ if (compilationUnitInfo == null) {
+ return null;
+ }
+ CompilationUnit unit = compilationUnitInfo.resolvedCompilationUnit;
if (unit == null) {
- RecordingErrorListener errorListener = new RecordingErrorListener();
- AnalysisContextImpl_ScanResult scanResult = internalScan(source, errorListener);
- Parser parser = new Parser(source, errorListener);
- unit = parser.parseCompilationUnit(scanResult._token);
- unit.parsingErrors = errorListener.getErrors2(source);
- unit.lineInfo = new LineInfo(scanResult._lineStarts);
- _parseCache[source] = unit;
+ unit = compilationUnitInfo.parsedCompilationUnit;
+ if (unit == null) {
+ RecordingErrorListener errorListener = new RecordingErrorListener();
+ AnalysisContextImpl_ScanResult scanResult = internalScan(source, errorListener);
+ Parser parser = new Parser(source, errorListener);
+ unit = parser.parseCompilationUnit(scanResult._token);
+ LineInfo lineInfo = new LineInfo(scanResult._lineStarts);
+ List<AnalysisError> errors = errorListener.getErrors2(source);
+ unit.parsingErrors = errors;
+ unit.lineInfo = lineInfo;
+ compilationUnitInfo.lineInfo = lineInfo;
+ compilationUnitInfo.parsedCompilationUnit = unit;
+ compilationUnitInfo.parseErrors = errors;
+ }
}
return unit;
}
}
- CompilationUnit parse3(Source source, AnalysisErrorListener errorListener) {
+ HtmlUnit parseHtmlUnit(Source source) {
{
- CompilationUnit unit = _parseCache[source];
+ HtmlUnitInfo htmlUnitInfo = getHtmlUnitInfo(source);
+ if (htmlUnitInfo == null) {
+ return null;
+ }
+ HtmlUnit unit = htmlUnitInfo.resolvedUnit;
if (unit == null) {
- AnalysisContextImpl_ScanResult scanResult = internalScan(source, errorListener);
- Parser parser = new Parser(source, errorListener);
- unit = parser.parseCompilationUnit(scanResult._token);
- unit.lineInfo = new LineInfo(scanResult._lineStarts);
- _parseCache[source] = unit;
+ unit = htmlUnitInfo.parsedUnit;
+ if (unit == null) {
+ HtmlParseResult result = new HtmlParser(source).parse(scanHtml(source));
+ unit = result.htmlUnit;
+ htmlUnitInfo.lineInfo = new LineInfo(result.lineStarts);
+ htmlUnitInfo.parsedUnit = unit;
+ for (SourceInfo sourceInfo in _sourceMap.values) {
+ if (sourceInfo is LibraryInfo) {
+ ((sourceInfo as LibraryInfo)).removeHtmlSource(source);
+ }
+ }
+ for (Source librarySource in getLibrarySources2(source, unit)) {
+ LibraryInfo libraryInfo = getLibraryInfo(librarySource);
+ if (libraryInfo != null) {
+ libraryInfo.addHtmlSource(source);
+ }
+ }
+ }
}
return unit;
}
}
- HtmlParseResult parseHtml(Source source) {
+ List<ChangeNotice> performAnalysisTask() {
{
- HtmlParseResult result = _htmlParseCache[source];
- if (result == null) {
- result = new HtmlParser(source).parse(scanHtml(source));
- _htmlParseCache[source] = result;
+ if (!performSingleAnalysisTask() && _pendingNotices.isEmpty) {
+ return null;
}
- return result;
+ if (_pendingNotices.isEmpty) {
+ return ChangeNoticeImpl.EMPTY_ARRAY;
+ }
+ List<ChangeNotice> notices = new List.from(_pendingNotices.values);
+ _pendingNotices.clear();
+ return notices;
}
}
- List<ChangeNotice> performAnalysisTask() => ChangeNotice.EMPTY_ARRAY;
/**
* Given a table mapping the source for the libraries represented by the corresponding elements to
* the elements representing the libraries, record those mappings.
@@ -784,26 +1017,142 @@ class AnalysisContextImpl implements AnalysisContext {
* the elements representing the libraries
*/
void recordLibraryElements(Map<Source, LibraryElement> elementMap) {
+ Source htmlSource = _sourceFactory.forUri("dart:html");
{
- javaMapPutAll(_libraryElementCache, elementMap);
+ for (MapEntry<Source, LibraryElement> entry in getMapEntrySet(elementMap)) {
+ LibraryElement library = entry.getValue();
+ LibraryInfo libraryInfo = getLibraryInfo(entry.getKey());
+ if (libraryInfo != null) {
+ libraryInfo.element = library;
+ libraryInfo.launchable = library.entryPoint != null;
+ libraryInfo.client = isClient(library, htmlSource, new Set<LibraryElement>());
+ }
+ Source librarySource = library.source;
+ if (librarySource != null) {
+ for (SourceInfo info in _sourceMap.values) {
+ if (info is CompilationUnitInfo) {
+ ((info as CompilationUnitInfo)).removeLibrarySource(librarySource);
+ }
+ }
+ if (libraryInfo != null) {
+ libraryInfo.addLibrarySource(librarySource);
+ }
+ for (CompilationUnitElement part in library.parts) {
+ Source partSource = part.source;
+ CompilationUnitInfo partInfo = partSource == null ? null : getCompilationUnitInfo(partSource);
+ if (partInfo != null) {
+ partInfo.addLibrarySource(librarySource);
+ }
+ }
+ }
+ }
}
}
- CompilationUnit resolve(Source source, LibraryElement library) => parse(source);
- void set sourceFactory(SourceFactory factory) {
+ /**
+ * Give the resolution errors and line info associated with the given source, add the information
+ * to the cache.
+ * @param source the source with which the information is associated
+ * @param errors the resolution errors associated with the source
+ * @param lineInfo the line information associated with the source
+ */
+ void recordResolutionErrors(Source source, List<AnalysisError> errors, LineInfo lineInfo5) {
+ {
+ CompilationUnitInfo compilationUnitInfo = getCompilationUnitInfo(source);
+ if (compilationUnitInfo != null) {
+ compilationUnitInfo.lineInfo = lineInfo5;
+ compilationUnitInfo.resolutionErrors = errors;
+ }
+ getNotice(source).setErrors(compilationUnitInfo.allErrors, lineInfo5);
+ }
+ }
+ /**
+ * Give the resolved compilation unit associated with the given source, add the unit to the cache.
+ * @param source the source with which the unit is associated
+ * @param unit the compilation unit associated with the source
+ */
+ void recordResolvedCompilationUnit(Source source, CompilationUnit unit) {
+ {
+ CompilationUnitInfo compilationUnitInfo = getCompilationUnitInfo(source);
+ if (compilationUnitInfo != null) {
+ compilationUnitInfo.resolvedCompilationUnit = unit;
+ getNotice(source).compilationUnit = unit;
+ }
+ }
+ }
+ CompilationUnit resolveCompilationUnit(Source source15, LibraryElement library) {
+ if (library == null) {
+ return null;
+ }
+ return resolveCompilationUnit2(source15, library.source);
+ }
+ CompilationUnit resolveCompilationUnit2(Source unitSource, Source librarySource) {
+ {
+ CompilationUnitInfo compilationUnitInfo = getCompilationUnitInfo(unitSource);
+ if (compilationUnitInfo == null) {
+ return null;
+ }
+ CompilationUnit unit = compilationUnitInfo.resolvedCompilationUnit;
+ if (unit == null) {
+ computeLibraryElement(librarySource);
+ unit = compilationUnitInfo.resolvedCompilationUnit;
+ }
+ return unit;
+ }
+ }
+ HtmlUnit resolveHtmlUnit(Source unitSource) {
+ {
+ HtmlUnitInfo htmlUnitInfo = getHtmlUnitInfo(unitSource);
+ if (htmlUnitInfo == null) {
+ return null;
+ }
+ HtmlUnit unit = htmlUnitInfo.resolvedUnit;
+ if (unit == null) {
+ computeHtmlElement(unitSource);
+ unit = htmlUnitInfo.resolvedUnit;
+ }
+ return unit;
+ }
+ }
+ void setContents(Source source, String contents) {
+ {
+ _sourceFactory.setContents(source, contents);
+ sourceChanged(source);
+ }
+ }
+ void set sourceFactory(SourceFactory factory) {
if (identical(_sourceFactory, factory)) {
return;
} else if (factory.context != null) {
throw new IllegalStateException("Source factories cannot be shared between contexts");
- } else if (_sourceFactory != null) {
- _sourceFactory.context = null;
}
- factory.context = this;
- _sourceFactory = factory;
+ {
+ if (_sourceFactory != null) {
+ _sourceFactory.context = null;
+ }
+ factory.context = this;
+ _sourceFactory = factory;
+ for (SourceInfo sourceInfo in _sourceMap.values) {
+ if (sourceInfo is HtmlUnitInfo) {
+ ((sourceInfo as HtmlUnitInfo)).invalidateResolvedUnit();
+ } else if (sourceInfo is CompilationUnitInfo) {
+ CompilationUnitInfo compilationUnitInfo = sourceInfo as CompilationUnitInfo;
+ compilationUnitInfo.invalidateResolvedUnit();
+ compilationUnitInfo.invalidateResolutionErrors();
+ if (sourceInfo is LibraryInfo) {
+ LibraryInfo libraryInfo = sourceInfo as LibraryInfo;
+ libraryInfo.invalidateElement();
+ libraryInfo.invalidatePublicNamespace();
+ libraryInfo.invalidateLaunchable();
+ libraryInfo.invalidateClientServer();
+ }
+ }
+ }
+ }
}
Iterable<Source> sourcesToResolve(List<Source> changedSources) {
List<Source> librarySources = new List<Source>();
for (Source source in changedSources) {
- if (identical(getOrComputeKindOf(source), SourceKind.LIBRARY)) {
+ if (identical(computeKindOf(source), SourceKind.LIBRARY)) {
librarySources.add(source);
}
}
@@ -823,26 +1172,151 @@ class AnalysisContextImpl implements AnalysisContext {
}
}
}
- SourceKind computeKindOf(Source source) {
- try {
- if (hasPartOfDirective(parse(source))) {
- return SourceKind.PART;
+ /**
+ * Create a source information object suitable for the given source. Return the source information
+ * object that was created, or {@code null} if the source should not be tracked by this context.
+ * @param source the source for which an information object is being created
+ * @return the source information object that was created
+ */
+ SourceInfo createSourceInfo(Source source) {
+ String name = source.shortName;
+ if (AnalysisEngine.isHtmlFileName(name)) {
+ HtmlUnitInfo info = new HtmlUnitInfo();
+ _sourceMap[source] = info;
+ return info;
+ } else if (AnalysisEngine.isDartFileName(name)) {
+ DartInfo info = DartInfo.instance;
+ _sourceMap[source] = info;
+ return info;
+ }
+ return null;
+ }
+ /**
+ * Return the compilation unit information associated with the given source, or {@code null} if
+ * the source is not known to this context. This method should be used to access the compilation
+ * unit information rather than accessing the compilation unit map directly because sources in the
+ * SDK are implicitly part of every analysis context and are therefore only added to the map when
+ * first accessed.
+ * <p>
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * @param source the source for which information is being sought
+ * @return the compilation unit information associated with the given source
+ */
+ CompilationUnitInfo getCompilationUnitInfo(Source source) {
+ SourceInfo sourceInfo = getSourceInfo(source);
+ if (sourceInfo == null) {
+ sourceInfo = new CompilationUnitInfo();
+ _sourceMap[source] = sourceInfo;
+ return sourceInfo as CompilationUnitInfo;
+ } else if (sourceInfo is CompilationUnitInfo) {
+ return sourceInfo as CompilationUnitInfo;
+ } else if (sourceInfo is DartInfo) {
+ sourceInfo = internalComputeKindOf(source, sourceInfo);
+ if (sourceInfo is CompilationUnitInfo) {
+ return sourceInfo as CompilationUnitInfo;
}
- } on AnalysisException catch (exception) {
- return SourceKind.UNKNOWN;
}
- return SourceKind.LIBRARY;
+ return null;
+ }
+ /**
+ * Return the HTML unit information associated with the given source, or {@code null} if the
+ * source is not known to this context. This method should be used to access the HTML unit
+ * information rather than accessing the HTML unit map directly because sources in the SDK are
+ * implicitly part of every analysis context and are therefore only added to the map when first
+ * accessed.
+ * <p>
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * @param source the source for which information is being sought
+ * @return the HTML unit information associated with the given source
+ */
+ HtmlUnitInfo getHtmlUnitInfo(Source source) {
+ SourceInfo sourceInfo = getSourceInfo(source);
+ if (sourceInfo == null) {
+ sourceInfo = new HtmlUnitInfo();
+ _sourceMap[source] = sourceInfo;
+ return sourceInfo as HtmlUnitInfo;
+ } else if (sourceInfo is HtmlUnitInfo) {
+ return sourceInfo as HtmlUnitInfo;
+ }
+ return null;
+ }
+ /**
+ * Return the library information associated with the given source, or {@code null} if the source
+ * is not known to this context. This method should be used to access the library information
+ * rather than accessing the library map directly because sources in the SDK are implicitly part
+ * of every analysis context and are therefore only added to the map when first accessed.
+ * <p>
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * @param source the source for which information is being sought
+ * @return the library information associated with the given source
+ */
+ LibraryInfo getLibraryInfo(Source source) {
+ SourceInfo sourceInfo = getSourceInfo(source);
+ if (sourceInfo == null) {
+ sourceInfo = new LibraryInfo();
+ _sourceMap[source] = sourceInfo;
+ return sourceInfo as LibraryInfo;
+ } else if (sourceInfo is LibraryInfo) {
+ return sourceInfo as LibraryInfo;
+ } else if (sourceInfo is DartInfo) {
+ sourceInfo = internalComputeKindOf(source, sourceInfo);
+ if (sourceInfo is LibraryInfo) {
+ return sourceInfo as LibraryInfo;
+ }
+ }
+ return null;
+ }
+ /**
+ * Return the sources of libraries that are referenced in the specified HTML file.
+ * @param htmlSource the source of the HTML file being analyzed
+ * @param htmlUnit the AST for the HTML file being analyzed
+ * @return the sources of libraries that are referenced in the HTML file
+ */
+ List<Source> getLibrarySources2(Source htmlSource, HtmlUnit htmlUnit) {
+ List<Source> libraries = new List<Source>();
+ htmlUnit.accept(new SimpleXmlVisitor_3(htmlSource, libraries));
+ return libraries;
+ }
+ /**
+ * Return a change notice for the given source, creating one if one does not already exist.
+ * @param source the source for which changes are being reported
+ * @return a change notice for the given source
+ */
+ ChangeNoticeImpl getNotice(Source source) {
+ ChangeNoticeImpl notice = _pendingNotices[source];
+ if (notice == null) {
+ notice = new ChangeNoticeImpl(source);
+ _pendingNotices[source] = notice;
+ }
+ return notice;
+ }
+ /**
+ * Return the source information associated with the given source, or {@code null} if the source
+ * is not known to this context. This method should be used to access the source information
+ * rather than accessing the source map directly because sources in the SDK are implicitly part of
+ * every analysis context and are therefore only added to the map when first accessed.
+ * <p>
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * @param source the source for which information is being sought
+ * @return the source information associated with the given source
+ */
+ SourceInfo getSourceInfo(Source source) {
+ SourceInfo sourceInfo = _sourceMap[source];
+ if (sourceInfo == null) {
+ sourceInfo = createSourceInfo(source);
+ }
+ return sourceInfo;
}
/**
* Return an array containing all of the sources known to this context that have the given kind.
* @param kind the kind of sources to be returned
* @return all of the sources known to this context that have the given kind
*/
- List<Source> getSources(SourceKind kind5) {
+ List<Source> getSources(SourceKind kind3) {
List<Source> sources = new List<Source>();
{
for (MapEntry<Source, SourceInfo> entry in getMapEntrySet(_sourceMap)) {
- if (identical(entry.getValue().kind, kind5)) {
+ if (identical(entry.getValue().kind, kind3)) {
sources.add(entry.getKey());
}
}
@@ -862,74 +1336,185 @@ class AnalysisContextImpl implements AnalysisContext {
}
return false;
}
+ SourceInfo internalComputeKindOf(Source source, SourceInfo info) {
+ try {
+ RecordingErrorListener errorListener = new RecordingErrorListener();
+ AnalysisContextImpl_ScanResult scanResult = internalScan(source, errorListener);
+ Parser parser = new Parser(source, errorListener);
+ CompilationUnit unit = parser.parseCompilationUnit(scanResult._token);
+ LineInfo lineInfo = new LineInfo(scanResult._lineStarts);
+ List<AnalysisError> errors = errorListener.getErrors2(source);
+ unit.parsingErrors = errors;
+ unit.lineInfo = lineInfo;
+ CompilationUnitInfo sourceInfo;
+ if (hasPartOfDirective(unit)) {
+ sourceInfo = new CompilationUnitInfo();
+ } else {
+ sourceInfo = new LibraryInfo();
+ }
+ sourceInfo.lineInfo = lineInfo;
+ sourceInfo.parsedCompilationUnit = unit;
+ sourceInfo.parseErrors = errors;
+ _sourceMap[source] = sourceInfo;
+ return sourceInfo;
+ } on AnalysisException catch (exception) {
+ return info;
+ }
+ }
AnalysisContextImpl_ScanResult internalScan(Source source, AnalysisErrorListener errorListener) {
AnalysisContextImpl_ScanResult result = new AnalysisContextImpl_ScanResult();
- Source_ContentReceiver receiver = new Source_ContentReceiver_3(source, errorListener, result);
+ Source_ContentReceiver receiver = new Source_ContentReceiver_4(source, errorListener, result);
try {
source.getContents(receiver);
- } on JavaException catch (exception) {
+ } catch (exception) {
throw new AnalysisException.con3(exception);
}
return result;
}
+ /**
+ * Return {@code true} if this library is, or depends on, dart:html.
+ * @param library the library being tested
+ * @param visitedLibraries a collection of the libraries that have been visited, used to prevent
+ * infinite recursion
+ * @return {@code true} if this library is, or depends on, dart:html
+ */
+ bool isClient(LibraryElement library, Source htmlSource, Set<LibraryElement> visitedLibraries) {
+ if (visitedLibraries.contains(library)) {
+ return false;
+ }
+ if (library.source == htmlSource) {
+ return true;
+ }
+ javaSetAdd(visitedLibraries, library);
+ for (LibraryElement imported in library.importedLibraries) {
+ if (isClient(imported, htmlSource, visitedLibraries)) {
+ return true;
+ }
+ }
+ for (LibraryElement exported in library.exportedLibraries) {
+ if (isClient(exported, htmlSource, visitedLibraries)) {
+ return true;
+ }
+ }
+ return false;
+ }
+ /**
+ * Perform a single analysis task.
+ * <p>
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * @return {@code true} if work was done, implying that there might be more work to be done
+ */
+ bool performSingleAnalysisTask() {
+ for (MapEntry<Source, SourceInfo> entry in getMapEntrySet(_sourceMap)) {
+ SourceInfo sourceInfo = entry.getValue();
+ if (identical(sourceInfo, DartInfo.instance) || sourceInfo.kind == null) {
+ internalComputeKindOf(entry.getKey(), sourceInfo);
+ return true;
+ }
+ }
+ for (MapEntry<Source, SourceInfo> entry in getMapEntrySet(_sourceMap)) {
+ SourceInfo sourceInfo = entry.getValue();
+ if (sourceInfo is CompilationUnitInfo) {
+ CompilationUnitInfo unitInfo = sourceInfo as CompilationUnitInfo;
+ if (unitInfo.hasInvalidParsedUnit()) {
+ try {
+ parseCompilationUnit(entry.getKey());
+ } on AnalysisException catch (exception) {
+ unitInfo.parsedCompilationUnit = null;
+ AnalysisEngine.instance.logger.logError2("Could not parse ${entry.getKey().fullName}", exception);
+ }
+ return true;
+ }
+ } else if (sourceInfo is HtmlUnitInfo) {
+ HtmlUnitInfo unitInfo = sourceInfo as HtmlUnitInfo;
+ if (unitInfo.hasInvalidParsedUnit()) {
+ try {
+ parseHtmlUnit(entry.getKey());
+ } on AnalysisException catch (exception) {
+ unitInfo.parsedUnit = null;
+ AnalysisEngine.instance.logger.logError2("Could not parse ${entry.getKey().fullName}", exception);
+ }
+ return true;
+ }
+ }
+ }
+ for (MapEntry<Source, SourceInfo> entry in getMapEntrySet(_sourceMap)) {
+ SourceInfo sourceInfo = entry.getValue();
+ if (sourceInfo is LibraryInfo) {
+ LibraryInfo libraryInfo = sourceInfo as LibraryInfo;
+ if (libraryInfo.hasInvalidElement()) {
+ try {
+ computeLibraryElement(entry.getKey());
+ } on AnalysisException catch (exception) {
+ libraryInfo.element = null;
+ AnalysisEngine.instance.logger.logError2("Could not compute the library element for ${entry.getKey().fullName}", exception);
+ }
+ return true;
+ }
+ }
+ }
+ return false;
+ }
HtmlScanResult scanHtml(Source source) {
HtmlScanner scanner = new HtmlScanner(source);
try {
source.getContents(scanner);
- } on JavaException catch (exception) {
+ } catch (exception) {
throw new AnalysisException.con3(exception);
}
return scanner.result;
}
/**
- * Note: This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
* @param source the source that has been added
*/
void sourceAvailable(Source source) {
SourceInfo existingInfo = _sourceMap[source];
if (existingInfo == null) {
- SourceKind kind = computeKindOf(source);
- _sourceMap[source] = new SourceInfo.con1(source, kind);
+ createSourceInfo(source);
}
}
/**
- * Note: This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
* @param source the source that has been changed
*/
void sourceChanged(Source source) {
- SourceInfo info = _sourceMap[source];
- if (info == null) {
- return;
- }
- _parseCache.remove(source);
- _htmlParseCache.remove(source);
- _libraryElementCache.remove(source);
- _publicNamespaceCache.remove(source);
- SourceKind oldKind = info.kind;
- SourceKind newKind = computeKindOf(source);
- if (newKind != oldKind) {
- info.kind = newKind;
- }
- for (Source librarySource in info.librarySources) {
- _libraryElementCache.remove(librarySource);
- _publicNamespaceCache.remove(librarySource);
+ SourceInfo sourceInfo = _sourceMap[source];
+ if (sourceInfo is HtmlUnitInfo) {
+ HtmlUnitInfo htmlUnitInfo = sourceInfo as HtmlUnitInfo;
+ htmlUnitInfo.invalidateLineInfo();
+ htmlUnitInfo.invalidateParsedUnit();
+ htmlUnitInfo.invalidateResolvedUnit();
+ } else if (sourceInfo is CompilationUnitInfo) {
+ CompilationUnitInfo compilationUnitInfo = sourceInfo as CompilationUnitInfo;
+ for (Source librarySource in compilationUnitInfo.librarySources) {
+ LibraryInfo libraryInfo = getLibraryInfo(librarySource);
+ if (libraryInfo != null) {
+ libraryInfo.invalidateElement();
+ libraryInfo.invalidatePublicNamespace();
+ libraryInfo.invalidateLaunchable();
+ libraryInfo.invalidateClientServer();
+ }
+ }
+ _sourceMap[source] = DartInfo.instance;
}
}
/**
- * Note: This method must only be invoked while we are synchronized on {@link #cacheLock}.
+ * <b>Note:</b> This method must only be invoked while we are synchronized on {@link #cacheLock}.
* @param source the source that has been deleted
*/
void sourceRemoved(Source source) {
- SourceInfo info = _sourceMap[source];
- if (info == null) {
- return;
- }
- _parseCache.remove(source);
- _libraryElementCache.remove(source);
- _publicNamespaceCache.remove(source);
- for (Source librarySource in info.librarySources) {
- _libraryElementCache.remove(librarySource);
- _publicNamespaceCache.remove(librarySource);
+ CompilationUnitInfo compilationUnitInfo = getCompilationUnitInfo(source);
+ if (compilationUnitInfo != null) {
+ for (Source librarySource in compilationUnitInfo.librarySources) {
+ LibraryInfo libraryInfo = getLibraryInfo(librarySource);
+ if (libraryInfo != null) {
+ libraryInfo.invalidateElement();
+ libraryInfo.invalidatePublicNamespace();
+ libraryInfo.invalidateLaunchable();
+ libraryInfo.invalidateClientServer();
+ }
+ }
}
_sourceMap.remove(source);
}
@@ -952,11 +1537,29 @@ class AnalysisContextImpl_ScanResult {
AnalysisContextImpl_ScanResult() : super() {
}
}
-class Source_ContentReceiver_3 implements Source_ContentReceiver {
+class SimpleXmlVisitor_3 extends SimpleXmlVisitor<Object> {
+ Source htmlSource;
+ List<Source> libraries;
+ SimpleXmlVisitor_3(this.htmlSource, this.libraries) : super();
+ Object visitXmlTagNode(XmlTagNode node) {
+ if (javaStringEqualsIgnoreCase(node.tag.lexeme, AnalysisContextImpl._TAG_SCRIPT)) {
+ for (XmlAttributeNode attribute in node.attributes) {
+ if (javaStringEqualsIgnoreCase(attribute.name.lexeme, AnalysisContextImpl._ATTRIBUTE_SRC)) {
+ Source librarySource = htmlSource.resolve(attribute.value.lexeme);
+ if (librarySource.exists()) {
+ libraries.add(librarySource);
+ }
+ }
+ }
+ }
+ return null;
+ }
+}
+class Source_ContentReceiver_4 implements Source_ContentReceiver {
Source source;
AnalysisErrorListener errorListener;
AnalysisContextImpl_ScanResult result;
- Source_ContentReceiver_3(this.source, this.errorListener, this.result);
+ Source_ContentReceiver_4(this.source, this.errorListener, this.result);
accept(CharBuffer contents) {
CharBufferScanner scanner = new CharBufferScanner(source, contents, errorListener);
result._token = scanner.tokenize();
@@ -969,85 +1572,157 @@ class Source_ContentReceiver_3 implements Source_ContentReceiver {
}
}
/**
- * Instances of the class {@code RecordingErrorListener} implement an error listener that will
- * record the errors that are reported to it in a way that is appropriate for caching those errors
- * within an analysis context.
+ * The enumeration {@code CacheState} defines the possible states of cached data.
+ */
+class CacheState {
+ /**
+ * A state representing the fact that the data was up-to-date but flushed from the cache in order
+ * to control memory usage.
+ */
+ static final CacheState FLUSHED = new CacheState('FLUSHED', 0);
+ /**
+ * A state representing the fact that the data was removed from the cache because it was invalid
+ * and needs to be recomputed.
+ */
+ static final CacheState INVALID = new CacheState('INVALID', 1);
+ /**
+ * A state representing the fact that the data is in the cache and valid.
+ */
+ static final CacheState VALID = new CacheState('VALID', 2);
+ static final List<CacheState> values = [FLUSHED, INVALID, VALID];
+ final String __name;
+ final int __ordinal;
+ int get ordinal => __ordinal;
+ CacheState(this.__name, this.__ordinal) {
+ }
+ String toString() => __name;
+}
+/**
+ * Instances of the class {@code ChangeNoticeImpl} represent a change to the analysis results
+ * associated with a given source.
* @coverage dart.engine
*/
-class RecordingErrorListener implements AnalysisErrorListener {
+class ChangeNoticeImpl implements ChangeNotice {
/**
- * A HashMap of lists containing the errors that were collected, keyed by each {@link Source}.
+ * The source for which the result is being reported.
*/
- Map<Source, List<AnalysisError>> _errors = new Map<Source, List<AnalysisError>>();
+ Source _source;
/**
- * Answer the errors collected by the listener.
- * @return an array of errors (not {@code null}, contains no {@code null}s)
+ * The fully resolved AST that changed as a result of the analysis, or {@code null} if the AST was
+ * not changed.
*/
- List<AnalysisError> get errors {
- Set<MapEntry<Source, List<AnalysisError>>> entrySet2 = getMapEntrySet(_errors);
- if (entrySet2.length == 0) {
- return AnalysisError.NO_ERRORS;
- }
- List<AnalysisError> resultList = new List<AnalysisError>();
- for (MapEntry<Source, List<AnalysisError>> entry in entrySet2) {
- resultList.addAll(entry.getValue());
- }
- return new List.from(resultList);
+ CompilationUnit _compilationUnit;
+ /**
+ * The errors that changed as a result of the analysis, or {@code null} if errors were not
+ * changed.
+ */
+ List<AnalysisError> _errors;
+ /**
+ * The line information associated with the source, or {@code null} if errors were not changed.
+ */
+ LineInfo _lineInfo;
+ /**
+ * An empty array of change notices.
+ */
+ static List<ChangeNoticeImpl> EMPTY_ARRAY = new List<ChangeNoticeImpl>(0);
+ /**
+ * Initialize a newly created notice associated with the given source.
+ * @param source the source for which the change is being reported
+ */
+ ChangeNoticeImpl(Source source) {
+ this._source = source;
}
/**
- * Answer the errors collected by the listener for some passed {@link Source}.
- * @param source some {@link Source} for which the caller wants the set of {@link AnalysisError}s
- * collected by this listener
- * @return the errors collected by the listener for the passed {@link Source}
+ * Return the fully resolved AST that changed as a result of the analysis, or {@code null} if the
+ * AST was not changed.
+ * @return the fully resolved AST that changed as a result of the analysis
*/
- List<AnalysisError> getErrors2(Source source) {
- List<AnalysisError> errorsForSource = _errors[source];
- if (errorsForSource == null) {
- return AnalysisError.NO_ERRORS;
- } else {
- return new List.from(errorsForSource);
- }
+ CompilationUnit get compilationUnit => _compilationUnit;
+ /**
+ * Return the errors that changed as a result of the analysis, or {@code null} if errors were not
+ * changed.
+ * @return the errors that changed as a result of the analysis
+ */
+ List<AnalysisError> get errors => _errors;
+ /**
+ * Return the line information associated with the source, or {@code null} if errors were not
+ * changed.
+ * @return the line information associated with the source
+ */
+ LineInfo get lineInfo => _lineInfo;
+ /**
+ * Return the source for which the result is being reported.
+ * @return the source for which the result is being reported
+ */
+ Source get source => _source;
+ /**
+ * Set the fully resolved AST that changed as a result of the analysis to the given AST.
+ * @param compilationUnit the fully resolved AST that changed as a result of the analysis
+ */
+ void set compilationUnit(CompilationUnit compilationUnit9) {
+ this._compilationUnit = compilationUnit9;
}
- void onError(AnalysisError event) {
- Source source11 = event.source;
- List<AnalysisError> errorsForSource = _errors[source11];
- if (_errors[source11] == null) {
- errorsForSource = new List<AnalysisError>();
- _errors[source11] = errorsForSource;
- }
- errorsForSource.add(event);
+ /**
+ * Set the errors that changed as a result of the analysis to the given errors and set the line
+ * information to the given line information.
+ * @param errors the errors that changed as a result of the analysis
+ * @param lineInfo the line information associated with the source
+ */
+ void setErrors(List<AnalysisError> errors2, LineInfo lineInfo3) {
+ this._errors = errors2;
+ this._lineInfo = lineInfo3;
}
}
/**
- * Instances of the class {@code SourceInfo} maintain the information known by an analysis context
- * about an individual source.
+ * Instances of the class {@code CompilationUnitInfo} maintain the information cached by an analysis
+ * context about an individual compilation unit.
* @coverage dart.engine
*/
-class SourceInfo {
+class CompilationUnitInfo extends SourceInfo {
+ /**
+ * The state of the cached parsed compilation unit.
+ */
+ CacheState _parsedUnitState = CacheState.INVALID;
+ /**
+ * The parsed compilation unit, or {@code null} if the parsed compilation unit is not currently
+ * cached.
+ */
+ CompilationUnit _parsedUnit;
/**
- * The kind of the source.
+ * The state of the cached resolved compilation unit.
*/
- SourceKind _kind;
+ CacheState _resolvedUnitState = CacheState.INVALID;
/**
- * The sources for the defining compilation units for the libraries containing the source, or{@code null} if the libraries containing the source are not yet known.
+ * The resolved compilation unit, or {@code null} if the resolved compilation unit is not
+ * currently cached.
+ */
+ CompilationUnit _resolvedUnit;
+ /**
+ * The state of the cached parse errors.
+ */
+ CacheState _parseErrorsState = CacheState.INVALID;
+ /**
+ * The errors produced while scanning and parsing the compilation unit, or {@code null} if the
+ * errors are not currently cached.
+ */
+ List<AnalysisError> _parseErrors;
+ /**
+ * The state of the cached resolution errors.
+ */
+ CacheState _resolutionErrorsState = CacheState.INVALID;
+ /**
+ * The errors produced while resolving the compilation unit, or {@code null} if the errors are not
+ * currently cached.
+ */
+ List<AnalysisError> _resolutionErrors;
+ /**
+ * The sources for the defining compilation units of the libraries containing the source, or{@code null} if the libraries containing the source are not yet known.
*/
List<Source> _librarySources = null;
- SourceInfo.con1(Source source, SourceKind kind3) {
- _jtd_constructor_163_impl(source, kind3);
- }
- _jtd_constructor_163_impl(Source source, SourceKind kind3) {
- this._kind = kind3;
- }
/**
- * Initialize a newly created information holder to hold the same information as the given holder.
- * @param info the information holder used to initialize this holder
+ * Initialize a newly created information holder to be empty.
*/
- SourceInfo.con2(SourceInfo info) {
- _jtd_constructor_164_impl(info);
- }
- _jtd_constructor_164_impl(SourceInfo info) {
- _kind = info._kind;
- _librarySources = new List<Source>.from(info._librarySources);
+ CompilationUnitInfo() : super() {
}
/**
* Add the given source to the list of sources for the defining compilation units for the
@@ -1061,10 +1736,55 @@ class SourceInfo {
_librarySources.add(source);
}
/**
- * Return the kind of the source.
- * @return the kind of the source
+ * Remove the parsed compilation unit from the cache.
+ */
+ void clearParsedUnit() {
+ _parsedUnit = null;
+ }
+ /**
+ * Remove the parse errors from the cache.
+ */
+ void clearParseErrors() {
+ _parseErrors = null;
+ }
+ /**
+ * Remove the resolution errors from the cache.
+ */
+ void clearResolutionErrors() {
+ _resolutionErrors = null;
+ }
+ /**
+ * Remove the resolved compilation unit from the cache.
+ */
+ void clearResolvedUnit() {
+ _resolvedUnit = null;
+ }
+ CompilationUnitInfo copy() {
+ CompilationUnitInfo copy = new CompilationUnitInfo();
+ copy.copyFrom(this);
+ return copy;
+ }
+ /**
+ * Return all of the errors associated with the compilation unit.
+ * @return all of the errors associated with the compilation unit
*/
- SourceKind get kind => _kind;
+ List<AnalysisError> get allErrors {
+ if (_parseErrors == null) {
+ if (_resolutionErrors == null) {
+ return null;
+ }
+ return _resolutionErrors;
+ } else if (_resolutionErrors == null) {
+ return _parseErrors;
+ }
+ int parseCount = _parseErrors.length;
+ int resolutionCount = _resolutionErrors.length;
+ List<AnalysisError> errors = new List<AnalysisError>(parseCount + resolutionCount);
+ JavaSystem.arraycopy(_parseErrors, 0, errors, 0, parseCount);
+ JavaSystem.arraycopy(_resolutionErrors, 0, errors, parseCount, resolutionCount);
+ return errors;
+ }
+ SourceKind get kind => SourceKind.PART;
/**
* Return the sources for the defining compilation units for the libraries containing this source.
* @return the sources for the defining compilation units for the libraries containing this source
@@ -1076,22 +1796,654 @@ class SourceInfo {
return new List.from(_librarySources);
}
/**
- * Remove the given source from the list of sources for the defining compilation units for the
- * libraries containing this source.
+ * Return the parsed compilation unit, or {@code null} if the parsed compilation unit is not
+ * currently cached.
+ * @return the parsed compilation unit
+ */
+ CompilationUnit get parsedCompilationUnit => _parsedUnit;
+ /**
+ * Return the errors produced while scanning and parsing the compilation unit, or {@code null} if
+ * the errors are not currently cached.
+ * @return the errors produced while scanning and parsing the compilation unit
+ */
+ List<AnalysisError> get parseErrors => _parseErrors;
+ /**
+ * Return the errors produced while resolving the compilation unit, or {@code null} if the errors
+ * are not currently cached.
+ * @return the errors produced while resolving the compilation unit
+ */
+ List<AnalysisError> get resolutionErrors => _resolutionErrors;
+ /**
+ * Return the resolved compilation unit, or {@code null} if the resolved compilation unit is not
+ * currently cached.
+ * @return the resolved compilation unit
+ */
+ CompilationUnit get resolvedCompilationUnit => _resolvedUnit;
+ /**
+ * Return {@code true} if the parsed compilation unit needs to be recomputed.
+ * @return {@code true} if the parsed compilation unit needs to be recomputed
+ */
+ bool hasInvalidParsedUnit() => identical(_parsedUnitState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the parse errors needs to be recomputed.
+ * @return {@code true} if the parse errors needs to be recomputed
+ */
+ bool hasInvalidParseErrors() => identical(_parseErrorsState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the resolution errors needs to be recomputed.
+ * @return {@code true} if the resolution errors needs to be recomputed
+ */
+ bool hasInvalidResolutionErrors() => identical(_resolutionErrorsState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the resolved compilation unit needs to be recomputed.
+ * @return {@code true} if the resolved compilation unit needs to be recomputed
+ */
+ bool hasInvalidResolvedUnit() => identical(_resolvedUnitState, CacheState.INVALID);
+ /**
+ * Mark the parsed compilation unit as needing to be recomputed.
+ */
+ void invalidateParsedUnit() {
+ _parsedUnitState = CacheState.INVALID;
+ _parsedUnit = null;
+ }
+ /**
+ * Mark the parse errors as needing to be recomputed.
+ */
+ void invalidateParseErrors() {
+ _parseErrorsState = CacheState.INVALID;
+ _parseErrors = null;
+ }
+ /**
+ * Mark the resolution errors as needing to be recomputed.
+ */
+ void invalidateResolutionErrors() {
+ _resolutionErrorsState = CacheState.INVALID;
+ _resolutionErrors = null;
+ }
+ /**
+ * Mark the resolved compilation unit as needing to be recomputed.
+ */
+ void invalidateResolvedUnit() {
+ _resolvedUnitState = CacheState.INVALID;
+ _resolvedUnit = null;
+ }
+ /**
+ * Remove the given source from the list of sources for the defining compilation units for the
+ * libraries containing this source.
* @param source the source to be removed to the list
*/
void removeLibrarySource(Source source) {
- _librarySources.remove(source);
- if (_librarySources.isEmpty) {
- _librarySources = null;
+ if (_librarySources != null) {
+ _librarySources.remove(source);
+ if (_librarySources.isEmpty) {
+ _librarySources = null;
+ }
+ }
+ }
+ /**
+ * Set the parsed compilation unit to the given compilation unit.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the parsed compilation unit. Use
+ * either {@link #clear} or {@link #invalidate}.
+ * @param unit the parsed compilation unit
+ */
+ void set parsedCompilationUnit(CompilationUnit unit) {
+ _parsedUnit = unit;
+ _parsedUnitState = CacheState.VALID;
+ }
+ /**
+ * Set the errors produced while scanning and parsing the compilation unit to the given errors.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the parse errors. Use either{@link #clear} or {@link #invalidate}.
+ * @param errors the errors produced while scanning and parsing the compilation unit
+ */
+ void set parseErrors(List<AnalysisError> errors) {
+ _parseErrors = errors;
+ _parseErrorsState = CacheState.VALID;
+ }
+ /**
+ * Set the errors produced while resolving the compilation unit to the given errors.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the resolution errors. Use either{@link #clear} or {@link #invalidate}.
+ * @param errors the errors produced while resolving the compilation unit
+ */
+ void set resolutionErrors(List<AnalysisError> errors) {
+ _resolutionErrors = errors;
+ _resolutionErrorsState = CacheState.VALID;
+ }
+ /**
+ * Set the resolved compilation unit to the given compilation unit.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the resolved compilation unit. Use
+ * either {@link #clear} or {@link #invalidate}.
+ * @param unit the resolved compilation unit
+ */
+ void set resolvedCompilationUnit(CompilationUnit unit) {
+ _resolvedUnit = unit;
+ _resolvedUnitState = CacheState.VALID;
+ }
+ void copyFrom(SourceInfo info) {
+ super.copyFrom(info);
+ }
+}
+/**
+ * The unique instance of the class {@code DartInfo} acts as a placeholder for Dart compilation
+ * units that have not yet had their kind computed.
+ * @coverage dart.engine
+ */
+class DartInfo extends SourceInfo {
+ /**
+ * The unique instance of this class.
+ */
+ static DartInfo _UniqueInstance = new DartInfo();
+ /**
+ * Return the unique instance of this class.
+ * @return the unique instance of this class
+ */
+ static DartInfo get instance => _UniqueInstance;
+ /**
+ * Prevent the creation of instances of this class.
+ */
+ DartInfo() : super() {
+ }
+ DartInfo copy() => this;
+ SourceKind get kind => SourceKind.UNKNOWN;
+}
+/**
+ * Instances of the class {@code HtmlUnitInfo} maintain the information cached by an analysis
+ * context about an individual HTML file.
+ * @coverage dart.engine
+ */
+class HtmlUnitInfo extends SourceInfo {
+ /**
+ * The state of the cached parsed (but not resolved) HTML unit.
+ */
+ CacheState _parsedUnitState = CacheState.INVALID;
+ /**
+ * The parsed HTML unit, or {@code null} if the parsed HTML unit is not currently cached.
+ */
+ HtmlUnit _parsedUnit;
+ /**
+ * The state of the cached parsed and resolved HTML unit.
+ */
+ CacheState _resolvedUnitState = CacheState.INVALID;
+ /**
+ * The resolved HTML unit, or {@code null} if the resolved HTML unit is not currently cached.
+ */
+ HtmlUnit _resolvedUnit;
+ /**
+ * The state of the cached HTML element.
+ */
+ CacheState _elementState = CacheState.INVALID;
+ /**
+ * The element representing the HTML file, or {@code null} if the element is not currently cached.
+ */
+ HtmlElement _element;
+ /**
+ * Initialize a newly created information holder to be empty.
+ */
+ HtmlUnitInfo() : super() {
+ }
+ /**
+ * Remove the parsed HTML unit from the cache.
+ */
+ void clearParsedUnit() {
+ _parsedUnit = null;
+ }
+ /**
+ * Remove the resolved HTML unit from the cache.
+ */
+ void clearResolvedUnit() {
+ _resolvedUnit = null;
+ }
+ HtmlUnitInfo copy() {
+ HtmlUnitInfo copy = new HtmlUnitInfo();
+ copy.copyFrom(this);
+ return copy;
+ }
+ /**
+ * Return the element representing the HTML file, or {@code null} if the element is not currently
+ * cached.
+ * @return the element representing the HTML file
+ */
+ HtmlElement get element => _element;
+ SourceKind get kind => SourceKind.HTML;
+ /**
+ * Return the parsed HTML unit, or {@code null} if the parsed HTML unit is not currently cached.
+ * @return the parsed HTML unit
+ */
+ HtmlUnit get parsedUnit => _parsedUnit;
+ /**
+ * Return the resolved HTML unit, or {@code null} if the resolved HTML unit is not currently
+ * cached.
+ * @return the resolved HTML unit
+ */
+ HtmlUnit get resolvedUnit => _resolvedUnit;
+ /**
+ * Return {@code true} if the HTML element needs to be recomputed.
+ * @return {@code true} if the HTML element needs to be recomputed
+ */
+ bool hasInvalidElement() => identical(_elementState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the parsed HTML unit needs to be recomputed.
+ * @return {@code true} if the parsed HTML unit needs to be recomputed
+ */
+ bool hasInvalidParsedUnit() => identical(_parsedUnitState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the resolved HTML unit needs to be recomputed.
+ * @return {@code true} if the resolved HTML unit needs to be recomputed
+ */
+ bool hasInvalidResolvedUnit() => identical(_resolvedUnitState, CacheState.INVALID);
+ /**
+ * Mark the HTML element as needing to be recomputed.
+ */
+ void invalidateElement() {
+ _elementState = CacheState.INVALID;
+ _element = null;
+ }
+ /**
+ * Mark the parsed HTML unit as needing to be recomputed.
+ */
+ void invalidateParsedUnit() {
+ _parsedUnitState = CacheState.INVALID;
+ _parsedUnit = null;
+ }
+ /**
+ * Mark the resolved HTML unit as needing to be recomputed.
+ */
+ void invalidateResolvedUnit() {
+ _resolvedUnitState = CacheState.INVALID;
+ _resolvedUnit = null;
+ }
+ /**
+ * Set the element representing the HTML file to the given element.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the element. Use either{@link #clearElement()} or {@link #invalidateElement()}.
+ * @param element the element representing the HTML file
+ */
+ void set element(HtmlElement element19) {
+ this._element = element19;
+ _elementState = CacheState.VALID;
+ }
+ /**
+ * Set the parsed HTML unit to the given HTML unit.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the HTML unit. Use either{@link #clearParsedUnit()} or {@link #invalidateParsedUnit()}.
+ * @param unit the result of parsing the source as an HTML unit
+ */
+ void set parsedUnit(HtmlUnit unit) {
+ _parsedUnit = unit;
+ _parsedUnitState = CacheState.VALID;
+ }
+ /**
+ * Set the resolved HTML unit to the given HTML unit.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the HTML unit. Use either{@link #clearResolvedUnit()} or {@link #invalidateResolvedUnit()}.
+ * @param unit the result of resolving the source as an HTML unit
+ */
+ void set resolvedUnit(HtmlUnit unit) {
+ _resolvedUnit = unit;
+ _resolvedUnitState = CacheState.VALID;
+ }
+ void copyFrom(SourceInfo info) {
+ super.copyFrom(info);
+ }
+}
+/**
+ * Instances of the class {@code LibraryInfo} maintain the information cached by an analysis context
+ * about an individual library.
+ * @coverage dart.engine
+ */
+class LibraryInfo extends CompilationUnitInfo {
+ /**
+ * Mask indicating that this library is launchable: that the file has a main method.
+ */
+ static int _LAUNCHABLE = 1 << 1;
+ /**
+ * Mask indicating that the library is client code: that the library depends on the html library.
+ * If the library is not "client code", then it is referenced as "server code".
+ */
+ static int _CLIENT_CODE = 1 << 2;
+ /**
+ * The state of the cached library element.
+ */
+ CacheState _elementState = CacheState.INVALID;
+ /**
+ * The element representing the library, or {@code null} if the element is not currently cached.
+ */
+ LibraryElement _element;
+ /**
+ * The state of the cached public namespace.
+ */
+ CacheState _publicNamespaceState = CacheState.INVALID;
+ /**
+ * The public namespace of the library, or {@code null} if the namespace is not currently cached.
+ */
+ Namespace _publicNamespace;
+ /**
+ * The state of the cached client/ server flag.
+ */
+ CacheState _clientServerState = CacheState.INVALID;
+ /**
+ * The state of the cached launchable flag.
+ */
+ CacheState _launchableState = CacheState.INVALID;
+ /**
+ * An integer holding bit masks such as {@link #LAUNCHABLE} and {@link #CLIENT_CODE}.
+ */
+ int _bitmask = 0;
+ /**
+ * The sources for the HTML files that reference this library (via a script tag), or {@code null}if there are no HTML files that reference the library or if the HTML files are not yet known.
+ */
+ List<Source> _htmlSources = null;
+ /**
+ * Initialize a newly created information holder to be empty.
+ */
+ LibraryInfo() : super() {
+ }
+ /**
+ * Add the given source to the list of sources for the HTML files that reference this library.
+ * @param source the source to be added to the list
+ */
+ void addHtmlSource(Source source) {
+ if (_htmlSources == null) {
+ _htmlSources = new List<Source>();
+ }
+ _htmlSources.add(source);
+ }
+ /**
+ * Remove the library element from the cache.
+ */
+ void clearElement() {
+ _element = null;
+ }
+ /**
+ * Remove the public namespace from the cache.
+ */
+ void clearPublicNamespace() {
+ _publicNamespace = null;
+ }
+ LibraryInfo copy() {
+ LibraryInfo copy = new LibraryInfo();
+ copy.copyFrom(this);
+ return copy;
+ }
+ /**
+ * Return the element representing the library, or {@code null} if the element is not currently
+ * cached.
+ * @return the element representing the library
+ */
+ LibraryElement get element => _element;
+ /**
+ * Return the sources for the HTML files that reference this library.
+ * @return the sources for the HTML files that reference this library
+ */
+ List<Source> get htmlSources {
+ if (_htmlSources == null) {
+ return Source.EMPTY_ARRAY;
}
+ return new List.from(_htmlSources);
+ }
+ SourceKind get kind => SourceKind.LIBRARY;
+ /**
+ * Return the public namespace of the library, or {@code null} if the namespace is not currently
+ * cached.
+ * @return the public namespace of the library
+ */
+ Namespace get publicNamespace => _publicNamespace;
+ /**
+ * Return {@code true} if the client/ server flag needs to be recomputed.
+ * @return {@code true} if the client/ server flag needs to be recomputed
+ */
+ bool hasInvalidClientServer() => identical(_clientServerState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the library element needs to be recomputed.
+ * @return {@code true} if the library element needs to be recomputed
+ */
+ bool hasInvalidElement() => identical(_elementState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the launchable flag needs to be recomputed.
+ * @return {@code true} if the launchable flag needs to be recomputed
+ */
+ bool hasInvalidLaunchable() => identical(_launchableState, CacheState.INVALID);
+ /**
+ * Return {@code true} if the public namespace needs to be recomputed.
+ * @return {@code true} if the public namespace needs to be recomputed
+ */
+ bool hasInvalidPublicNamespace() => identical(_publicNamespaceState, CacheState.INVALID);
+ /**
+ * Mark the client/ server flag as needing to be recomputed.
+ */
+ void invalidateClientServer() {
+ _clientServerState = CacheState.INVALID;
+ _bitmask &= ~_CLIENT_CODE;
+ }
+ /**
+ * Mark the library element as needing to be recomputed.
+ */
+ void invalidateElement() {
+ _elementState = CacheState.INVALID;
+ _element = null;
+ }
+ /**
+ * Mark the launchable flag as needing to be recomputed.
+ */
+ void invalidateLaunchable() {
+ _launchableState = CacheState.INVALID;
+ _bitmask &= ~_LAUNCHABLE;
+ }
+ /**
+ * Mark the public namespace as needing to be recomputed.
+ */
+ void invalidatePublicNamespace() {
+ _publicNamespaceState = CacheState.INVALID;
+ _publicNamespace = null;
+ }
+ /**
+ * Return <code>true</code> if this library is client based code: the library depends on the html
+ * library.
+ * @return <code>true</code> if this library is client based code: the library depends on the html
+ * library
+ */
+ bool isClient() => (_bitmask & _CLIENT_CODE) != 0;
+ /**
+ * Return <code>true</code> if this library is launchable: the file includes a main method.
+ * @return <code>true</code> if this library is launchable: the file includes a main method
+ */
+ bool isLaunchable() => (_bitmask & _LAUNCHABLE) != 0;
+ /**
+ * Return <code>true</code> if this library is server based code: the library does not depends on
+ * the html library.
+ * @return <code>true</code> if this library is server based code: the library does not depends on
+ * the html library
+ */
+ bool isServer() => (_bitmask & _CLIENT_CODE) == 0;
+ /**
+ * Remove the given source from the list of sources for the HTML files that reference this
+ * library.
+ * @param source the source to be removed to the list
+ */
+ void removeHtmlSource(Source source) {
+ if (_htmlSources != null) {
+ _htmlSources.remove(source);
+ if (_htmlSources.isEmpty) {
+ _htmlSources = null;
+ }
+ }
+ }
+ /**
+ * Sets the value of the client/ server flag.
+ * <p>
+ * <b>Note:</b> Do not use this method to invalidate the flag, use{@link #invalidateClientServer()}.
+ * @param isClient the new value of the client flag
+ */
+ void set client(bool isClient) {
+ if (isClient) {
+ _bitmask |= _CLIENT_CODE;
+ } else {
+ _bitmask &= ~_CLIENT_CODE;
+ }
+ _clientServerState = CacheState.VALID;
+ }
+ /**
+ * Set the element representing the library to the given element.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the element. Use either{@link #clearElement()} or {@link #invalidateElement()}.
+ * @param element the element representing the library
+ */
+ void set element(LibraryElement element20) {
+ this._element = element20;
+ _elementState = CacheState.VALID;
+ }
+ /**
+ * Sets the value of the launchable flag.
+ * <p>
+ * <b>Note:</b> Do not use this method to invalidate the flag, use {@link #invalidateLaunchable()}.
+ * @param isClient the new value of the client flag
+ */
+ void set launchable(bool launchable2) {
+ if (launchable2) {
+ _bitmask |= _LAUNCHABLE;
+ } else {
+ _bitmask &= ~_LAUNCHABLE;
+ }
+ _launchableState = CacheState.VALID;
+ }
+ /**
+ * Set the public namespace of the library to the given namespace.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the element. Use either{@link #clearPublicNamespace()} or {@link #invalidatePublicNamespace()}.
+ * @param namespace the public namespace of the library
+ */
+ void set publicNamespace(Namespace namespace) {
+ _publicNamespace = namespace;
+ _publicNamespaceState = CacheState.VALID;
+ }
+ void copyFrom(SourceInfo info) {
+ super.copyFrom(info);
+ }
+}
+/**
+ * Instances of the class {@code RecordingErrorListener} implement an error listener that will
+ * record the errors that are reported to it in a way that is appropriate for caching those errors
+ * within an analysis context.
+ * @coverage dart.engine
+ */
+class RecordingErrorListener implements AnalysisErrorListener {
+ /**
+ * A HashMap of lists containing the errors that were collected, keyed by each {@link Source}.
+ */
+ Map<Source, List<AnalysisError>> _errors = new Map<Source, List<AnalysisError>>();
+ /**
+ * Answer the errors collected by the listener.
+ * @return an array of errors (not {@code null}, contains no {@code null}s)
+ */
+ List<AnalysisError> get errors {
+ Set<MapEntry<Source, List<AnalysisError>>> entrySet2 = getMapEntrySet(_errors);
+ if (entrySet2.length == 0) {
+ return AnalysisError.NO_ERRORS;
+ }
+ List<AnalysisError> resultList = new List<AnalysisError>();
+ for (MapEntry<Source, List<AnalysisError>> entry in entrySet2) {
+ resultList.addAll(entry.getValue());
+ }
+ return new List.from(resultList);
+ }
+ /**
+ * Answer the errors collected by the listener for some passed {@link Source}.
+ * @param source some {@link Source} for which the caller wants the set of {@link AnalysisError}s
+ * collected by this listener
+ * @return the errors collected by the listener for the passed {@link Source}
+ */
+ List<AnalysisError> getErrors2(Source source) {
+ List<AnalysisError> errorsForSource = _errors[source];
+ if (errorsForSource == null) {
+ return AnalysisError.NO_ERRORS;
+ } else {
+ return new List.from(errorsForSource);
+ }
+ }
+ void onError(AnalysisError event) {
+ Source source9 = event.source;
+ List<AnalysisError> errorsForSource = _errors[source9];
+ if (_errors[source9] == null) {
+ errorsForSource = new List<AnalysisError>();
+ _errors[source9] = errorsForSource;
+ }
+ errorsForSource.add(event);
+ }
+}
+/**
+ * Instances of the class {@code SourceInfo} maintain the information cached by an analysis context
+ * about an individual source.
+ * @coverage dart.engine
+ */
+abstract class SourceInfo {
+ /**
+ * The state of the cached line information.
+ */
+ CacheState _lineInfoState = CacheState.INVALID;
+ /**
+ * The line information computed for the source, or {@code null} if the line information is not
+ * currently cached.
+ */
+ LineInfo _lineInfo;
+ /**
+ * Initialize a newly created information holder to be empty.
+ */
+ SourceInfo() : super() {
+ }
+ /**
+ * Remove the line information from the cache.
+ */
+ void clearLineInfo() {
+ _lineInfo = null;
+ }
+ /**
+ * Return a copy of this information holder.
+ * @return a copy of this information holder
+ */
+ SourceInfo copy();
+ /**
+ * Return the kind of the source, or {@code null} if the kind is not currently cached.
+ * @return the kind of the source
+ */
+ SourceKind get kind;
+ /**
+ * Return the line information computed for the source, or {@code null} if the line information is
+ * not currently cached.
+ * @return the line information computed for the source
+ */
+ LineInfo get lineInfo => _lineInfo;
+ /**
+ * Return {@code true} if the line information needs to be recomputed.
+ * @return {@code true} if the line information needs to be recomputed
+ */
+ bool hasInvalidLineInfo() => identical(_lineInfoState, CacheState.INVALID);
+ /**
+ * Mark the line information as needing to be recomputed.
+ */
+ void invalidateLineInfo() {
+ _lineInfoState = CacheState.INVALID;
+ _lineInfo = null;
+ }
+ /**
+ * Set the line information for the source to the given line information.
+ * <p>
+ * <b>Note:</b> Do not use this method to clear or invalidate the element. Use either{@link #clearLineInfo()} or {@link #invalidateLineInfo()}.
+ * @param info the line information for the source
+ */
+ void set lineInfo(LineInfo info) {
+ _lineInfo = info;
+ _lineInfoState = CacheState.VALID;
}
/**
- * Set the kind of the source to the given kind.
- * @param kind the kind of the source
+ * Copy the information from the given information holder.
+ * @param info the information holder from which information will be copied
*/
- void set kind(SourceKind kind4) {
- this._kind = kind4;
+ void copyFrom(SourceInfo info) {
+ _lineInfoState = info._lineInfoState;
+ _lineInfo = info._lineInfo;
}
}
/**
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