/**
* 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);
}
}
