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comparison src/share/vm/prims/methodHandles.hpp @ 1507:cd5dbf694d45

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6939134: JSR 292 adjustments to method handle invocation Summary: split MethodHandle.invoke into invokeExact and invokeGeneric; also clean up JVM-to-Java interfaces Reviewed-by: twisti
author jrose
date Sat, 01 May 2010 02:42:18 -0700
parents 2338d41fbd81
children c18cbe5936b8
comparison
equal deleted inserted replaced
1506:2338d41fbd81 1507:cd5dbf694d45
214 } 214 }
215 static int adapter_conversion_vminfo(jint conv) { 215 static int adapter_conversion_vminfo(jint conv) {
216 return (conv >> CONV_VMINFO_SHIFT) & CONV_VMINFO_MASK; 216 return (conv >> CONV_VMINFO_SHIFT) & CONV_VMINFO_MASK;
217 } 217 }
218 218
219 // Bit mask of conversion_op values. May vary by platform.
220 static int adapter_conversion_ops_supported_mask();
221
219 // Offset in words that the interpreter stack pointer moves when an argument is pushed. 222 // Offset in words that the interpreter stack pointer moves when an argument is pushed.
220 // The stack_move value must always be a multiple of this. 223 // The stack_move value must always be a multiple of this.
221 static int stack_move_unit() { 224 static int stack_move_unit() {
222 return frame::interpreter_frame_expression_stack_direction() * Interpreter::stackElementWords; 225 return frame::interpreter_frame_expression_stack_direction() * Interpreter::stackElementWords;
223 } 226 }
260 263
261 public: 264 public:
262 // working with member names 265 // working with member names
263 static void resolve_MemberName(Handle mname, TRAPS); // compute vmtarget/vmindex from name/type 266 static void resolve_MemberName(Handle mname, TRAPS); // compute vmtarget/vmindex from name/type
264 static void expand_MemberName(Handle mname, int suppress, TRAPS); // expand defc/name/type if missing 267 static void expand_MemberName(Handle mname, int suppress, TRAPS); // expand defc/name/type if missing
268 static Handle new_MemberName(TRAPS); // must be followed by init_MemberName
265 static void init_MemberName(oop mname_oop, oop target); // compute vmtarget/vmindex from target 269 static void init_MemberName(oop mname_oop, oop target); // compute vmtarget/vmindex from target
266 static void init_MemberName(oop mname_oop, methodOop m, bool do_dispatch); 270 static void init_MemberName(oop mname_oop, methodOop m, bool do_dispatch = true);
267 static void init_MemberName(oop mname_oop, klassOop field_holder, AccessFlags mods, int offset); 271 static void init_MemberName(oop mname_oop, klassOop field_holder, AccessFlags mods, int offset);
268 static int find_MemberNames(klassOop k, symbolOop name, symbolOop sig, 272 static int find_MemberNames(klassOop k, symbolOop name, symbolOop sig,
269 int mflags, klassOop caller, 273 int mflags, klassOop caller,
270 int skip, objArrayOop results); 274 int skip, objArrayOop results);
271 // bit values for suppress argument to expand_MemberName: 275 // bit values for suppress argument to expand_MemberName:
298 static methodOop decode_method(oop x, klassOop& receiver_limit_result, int& decode_flags_result); 302 static methodOop decode_method(oop x, klassOop& receiver_limit_result, int& decode_flags_result);
299 enum { 303 enum {
300 // format of query to getConstant: 304 // format of query to getConstant:
301 GC_JVM_PUSH_LIMIT = 0, 305 GC_JVM_PUSH_LIMIT = 0,
302 GC_JVM_STACK_MOVE_UNIT = 1, 306 GC_JVM_STACK_MOVE_UNIT = 1,
307 GC_CONV_OP_IMPLEMENTED_MASK = 2,
303 308
304 // format of result from getTarget / encode_target: 309 // format of result from getTarget / encode_target:
305 ETF_HANDLE_OR_METHOD_NAME = 0, // all available data (immediate MH or method) 310 ETF_HANDLE_OR_METHOD_NAME = 0, // all available data (immediate MH or method)
306 ETF_DIRECT_HANDLE = 1, // ultimate method handle (will be a DMH, may be self) 311 ETF_DIRECT_HANDLE = 1, // ultimate method handle (will be a DMH, may be self)
307 ETF_METHOD_NAME = 2, // ultimate method as MemberName 312 ETF_METHOD_NAME = 2, // ultimate method as MemberName
308 ETF_REFLECT_METHOD = 3 // ultimate method as java.lang.reflect object (sans refClass) 313 ETF_REFLECT_METHOD = 3 // ultimate method as java.lang.reflect object (sans refClass)
309 }; 314 };
310 static int get_named_constant(int which, Handle name_box, TRAPS); 315 static int get_named_constant(int which, Handle name_box, TRAPS);
311 static oop encode_target(Handle mh, int format, TRAPS); // report vmtarget (to Java code) 316 static oop encode_target(Handle mh, int format, TRAPS); // report vmtarget (to Java code)
312 static bool class_cast_needed(klassOop src, klassOop dst); 317 static bool class_cast_needed(klassOop src, klassOop dst);
318
319 static instanceKlassHandle resolve_instance_klass(oop java_mirror_oop, TRAPS);
320 static instanceKlassHandle resolve_instance_klass(jclass java_mirror_jh, TRAPS) {
321 return resolve_instance_klass(JNIHandles::resolve(java_mirror_jh), THREAD);
322 }
313 323
314 private: 324 private:
315 // These checkers operate on a pair of whole MethodTypes: 325 // These checkers operate on a pair of whole MethodTypes:
316 static const char* check_method_type_change(oop src_mtype, int src_beg, int src_end, 326 static const char* check_method_type_change(oop src_mtype, int src_beg, int src_end,
317 int insert_argnum, oop insert_type, 327 int insert_argnum, oop insert_type,