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7200776: Implement default methods in interfaces

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Add generic type analysis and default method selection algorithms

Reviewed-by: coleenp, acorn
This commit is contained in:
Keith McGuigan 2012-10-11 12:25:42 -04:00
parent ff6a68b801
commit 6563cda42b
27 changed files with 4301 additions and 203 deletions
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45
hotspot/src/share/vm/oops/constMethod.hpp
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@ -108,12 +108,17 @@ class ExceptionTableElement VALUE_OBJ_CLASS_SPEC {
class ConstMethod : public MetaspaceObj {
friend class VMStructs;
public:
typedef enum { NORMAL, OVERPASS } MethodType;
private:
enum {
_has_linenumber_table = 1,
_has_checked_exceptions = 2,
_has_localvariable_table = 4,
_has_exception_table = 8
_has_exception_table = 8,
_is_overpass = 16
};
// Bit vector of signature
@ -145,19 +150,22 @@ private:
// Constructor
ConstMethod(int byte_code_size,
int compressed_line_number_size,
int localvariable_table_length,
int exception_table_length,
int checked_exceptions_length,
int size);
int compressed_line_number_size,
int localvariable_table_length,
int exception_table_length,
int checked_exceptions_length,
MethodType is_overpass,
int size);
public:
static ConstMethod* allocate(ClassLoaderData* loader_data,
int byte_code_size,
int compressed_line_number_size,
int localvariable_table_length,
int exception_table_length,
int checked_exceptions_length,
TRAPS);
int byte_code_size,
int compressed_line_number_size,
int localvariable_table_length,
int exception_table_length,
int checked_exceptions_length,
MethodType mt,
TRAPS);
bool is_constMethod() const { return true; }
@ -179,6 +187,19 @@ public:
bool has_exception_handler() const
{ return (_flags & _has_exception_table) != 0; }
MethodType method_type() const {
return ((_flags & _is_overpass) == 0) ? NORMAL : OVERPASS;
}
void set_method_type(MethodType mt) {
if (mt == NORMAL) {
_flags &= ~(_is_overpass);
} else {
_flags |= _is_overpass;
}
}
void set_interpreter_kind(int kind) { _interpreter_kind = kind; }
int interpreter_kind(void) const { return _interpreter_kind; }