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8004657: Add hooks to javac to enable reporting dependency information

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Reviewed-by: jjg, mcimadamore
This commit is contained in:
Fredrik Öhrström 2012-12-18 10:23:40 +01:00
parent da02d4f3d5
commit d61f7ca328
3 changed files with 40 additions and 4 deletions
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2
langtools/src/share/classes/com/sun/tools/javac/api/JavacTool.java
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@ -159,7 +159,7 @@ public final class JavacTool implements JavaCompiler {
}
}
private static void processOptions(Context context,
public static void processOptions(Context context,
JavaFileManager fileManager,
Iterable<String> options)
{

11
langtools/src/share/classes/com/sun/tools/javac/comp/Resolve.java
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@ -1798,6 +1798,9 @@ public class Resolve {
if ((kind & TYP) != 0) {
sym = findType(env, name);
if (sym.kind==TYP) {
reportDependence(env.enclClass.sym, sym);
}
if (sym.exists()) return sym;
else if (sym.kind < bestSoFar.kind) bestSoFar = sym;
}
@ -1806,6 +1809,14 @@ public class Resolve {
else return bestSoFar;
}
/** Report dependencies.
* @param from The enclosing class sym
* @param to The found identifier that the class depends on.
*/
public void reportDependence(Symbol from, Symbol to) {
// Override if you want to collect the reported dependencies.
}
/** Find an identifier in a package which matches a specified kind set.
* @param env The current environment.
* @param name The identifier's name.

31
langtools/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java
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@ -928,6 +928,16 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
}
}
/**
* Set needRootClasses to true, in JavaCompiler subclass constructor
* that want to collect public apis of classes supplied on the command line.
*/
protected boolean needRootClasses = false;
/**
* The list of classes explicitly supplied on the command line for compilation.
* Not always populated.
*/
private List<JCClassDecl> rootClasses;
/**
@ -984,9 +994,10 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
}
}
//If generating source, remember the classes declared in
//the original compilation units listed on the command line.
if (sourceOutput || stubOutput) {
// If generating source, or if tracking public apis,
// then remember the classes declared in
// the original compilation units listed on the command line.
if (needRootClasses || sourceOutput || stubOutput) {
ListBuffer<JCClassDecl> cdefs = lb();
for (JCCompilationUnit unit : roots) {
for (List<JCTree> defs = unit.defs;
@ -1247,6 +1258,12 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
attr.postAttr(env.tree);
}
compileStates.put(env, CompileState.ATTR);
if (rootClasses != null && rootClasses.contains(env.enclClass)) {
// This was a class that was explicitly supplied for compilation.
// If we want to capture the public api of this class,
// then now is a good time to do it.
reportPublicApi(env.enclClass.sym);
}
}
finally {
log.useSource(prev);
@ -1255,6 +1272,14 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
return env;
}
/** Report the public api of a class that was supplied explicitly for compilation,
* for example on the command line to javac.
* @param sym The symbol of the class.
*/
public void reportPublicApi(ClassSymbol sym) {
// Override to collect the reported public api.
}
/**
* Perform dataflow checks on attributed parse trees.
* These include checks for definite assignment and unreachable statements.