protected CompilationUnitDeclaration endParse(int act) {
if (this.hasRecoveredOnExpression) {
CompilationResult unitResult = this.compilationUnit.compilationResult;
if (act != ERROR_ACTION) { // expression recovery worked
// flush previously recorded problems
for (int i = 0; i < unitResult.problemCount; i++) {
unitResult.problems[i] = null; // discard problem
}
unitResult.problemCount = 0;
if (this.referenceContext instanceof AbstractMethodDeclaration) {
((AbstractMethodDeclaration) this.referenceContext).ignoreFurtherInvestigation = false;
}
if (this.referenceContext instanceof CompilationUnitDeclaration) {
((CompilationUnitDeclaration) this.referenceContext).ignoreFurtherInvestigation = false;
}
// consume expresion as a return statement
consumeStatementReturn();
int fieldsCount =
(this.evaluationContext.localVariableNames == null
? 0
: this.evaluationContext.localVariableNames.length)
+ (this.evaluationContext.declaringTypeName == null ? 0 : 1);
if (this.astPtr > (this.diet ? 0 : 2 + fieldsCount)) {
// in diet mode, the ast stack was empty when we went for method body
// otherwise it contained the type, the generated fields for local variables,
// the generated field for 'this' and the method
consumeBlockStatements();
}
consumeMethodBody();
if (!this.diet) {
consumeMethodDeclaration(true);
if (fieldsCount > 0) {
consumeClassBodyDeclarations();
}
consumeClassBodyDeclarationsopt();
consumeClassDeclaration();
consumeInternalCompilationUnitWithTypes();
consumeCompilationUnit();
}
this.lastAct = ACCEPT_ACTION;
} else {
// might have more than one error recorded:
// 1. during regular parse
// 2. during expression recovery
// -> must filter out one of them, the earliest one is less accurate
int maxRegularPos = 0, problemCount = unitResult.problemCount;
for (int i = 0; i < this.problemCountBeforeRecovery; i++) {
// skip unmatched bracket problems
if (unitResult.problems[i].getID() == IProblem.UnmatchedBracket) continue;
int start = unitResult.problems[i].getSourceStart();
if (start > maxRegularPos && start <= this.codeSnippetEnd) {
maxRegularPos = start;
}
}
int maxRecoveryPos = 0;
for (int i = this.problemCountBeforeRecovery; i < problemCount; i++) {
// skip unmatched bracket problems
if (unitResult.problems[i].getID() == IProblem.UnmatchedBracket) continue;
int start = unitResult.problems[i].getSourceStart();
if (start > maxRecoveryPos && start <= this.codeSnippetEnd) {
maxRecoveryPos = start;
}
}
if (maxRecoveryPos > maxRegularPos) {
System.arraycopy(
unitResult.problems,
this.problemCountBeforeRecovery,
unitResult.problems,
0,
problemCount - this.problemCountBeforeRecovery);
unitResult.problemCount -= this.problemCountBeforeRecovery;
} else {
unitResult.problemCount -= (problemCount - this.problemCountBeforeRecovery);
}
for (int i = unitResult.problemCount; i < problemCount; i++) {
unitResult.problems[i] = null; // discard problem
}
}
}
return super.endParse(act);
}
/**
* Bytecode generation for a method
*
* @param classScope
* @param classFile
*/
public void generateCode(ClassScope classScope, ClassFile classFile) {
classFile.codeStream.wideMode = false; // reset wideMode to false
if (this.ignoreFurtherInvestigation) {
// method is known to have errors, dump a problem method
if (this.binding == null) return; // handle methods with invalid signature or duplicates
int problemsLength;
CategorizedProblem[] problems =
this.scope.referenceCompilationUnit().compilationResult.getProblems();
CategorizedProblem[] problemsCopy = new CategorizedProblem[problemsLength = problems.length];
System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
classFile.addProblemMethod(this, this.binding, problemsCopy);
return;
}
int problemResetPC = 0;
CompilationResult unitResult = null;
int problemCount = 0;
if (classScope != null) {
TypeDeclaration referenceContext = classScope.referenceContext;
if (referenceContext != null) {
unitResult = referenceContext.compilationResult();
problemCount = unitResult.problemCount;
}
}
boolean restart = false;
boolean abort = false;
// regular code generation
do {
try {
problemResetPC = classFile.contentsOffset;
this.generateCode(classFile);
restart = false;
} catch (AbortMethod e) {
// a fatal error was detected during code generation, need to restart code gen if possible
if (e.compilationResult == CodeStream.RESTART_IN_WIDE_MODE) {
// a branch target required a goto_w, restart code gen in wide mode.
classFile.contentsOffset = problemResetPC;
classFile.methodCount--;
classFile.codeStream.resetInWideMode(); // request wide mode
// reset the problem count to prevent reporting the same warning twice
if (unitResult != null) {
unitResult.problemCount = problemCount;
}
restart = true;
} else if (e.compilationResult == CodeStream.RESTART_CODE_GEN_FOR_UNUSED_LOCALS_MODE) {
classFile.contentsOffset = problemResetPC;
classFile.methodCount--;
classFile.codeStream.resetForCodeGenUnusedLocals();
// reset the problem count to prevent reporting the same warning twice
if (unitResult != null) {
unitResult.problemCount = problemCount;
}
restart = true;
} else {
restart = false;
abort = true;
}
}
} while (restart);
// produce a problem method accounting for this fatal error
if (abort) {
int problemsLength;
CategorizedProblem[] problems =
this.scope.referenceCompilationUnit().compilationResult.getAllProblems();
CategorizedProblem[] problemsCopy = new CategorizedProblem[problemsLength = problems.length];
System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
classFile.addProblemMethod(this, this.binding, problemsCopy, problemResetPC);
}
}