#
# Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

GENSRC_VARHANDLES :=

VARHANDLES_GENSRC_DIR := $(SUPPORT_OUTPUTDIR)/gensrc/java.base/java/lang/invoke
VARHANDLES_SRC_DIR := $(TOPDIR)/src/java.base/share/classes/java/lang/invoke

################################################################################
# Setup a rule for generating a VarHandle java class
# Param 1 - Variable declaration prefix
# Param 2 - Type with first letter capitalized
define GenerateVarHandle

  $1_Type := $2

  $1_FILENAME := $(VARHANDLES_GENSRC_DIR)/VarHandle$$($1_Type)s.java

  $1_ARGS += -KCAS

  ifneq ($$(findstring $$($1_Type), Byte Short Char Int Long Float Double), )
    $1_ARGS += -KAtomicAdd
  endif

  ifneq ($$(findstring $$($1_Type), Boolean Byte Short Char Int Long), )
    $1_ARGS += -KBitwise
  endif

  ifneq ($$(findstring $$($1_Type), Byte Short Char), )
    $1_ARGS += -KShorterThanInt
  endif

  $$($1_FILENAME): $(VARHANDLES_SRC_DIR)/X-VarHandle.java.template $(BUILD_TOOLS_JDK)
        ifeq ($$($1_Type), Reference)
	  $$(eval $1_type := Object)
        else
	  $$(eval $1_type := $$$$(shell $(TR) '[:upper:]' '[:lower:]' <<< $$$$($1_Type)))
        endif
	$$(call MakeDir, $$(@D))
	$(RM) $$@
	$(TOOL_SPP) -nel -K$$($1_type) -Dtype=$$($1_type) -DType=$$($1_Type) \
	    $$($1_ARGS) -i$$< -o$$@

  GENSRC_VARHANDLES += $$($1_FILENAME)
endef

################################################################################

################################################################################
# Setup a rule for generating a VarHandleByteArray java class
# Param 1 - Variable declaration prefix
# Param 2 - Type with first letter capitalized
define GenerateVarHandleByteArray

  $1_Type := $2

  $1_FILENAME := $(VARHANDLES_GENSRC_DIR)/VarHandleByteArrayAs$$($1_Type)s.java

  ifeq ($$($1_Type), Short)
    $1_type := short
    $1_BoxType := $$($1_Type)

    $1_rawType := $$($1_type)
    $1_RawType := $$($1_Type)
    $1_RawBoxType := $$($1_BoxType)
  endif

  ifeq ($$($1_Type), Char)
    $1_type := char
    $1_BoxType := Character

    $1_rawType := $$($1_type)
    $1_RawType := $$($1_Type)
    $1_RawBoxType := $$($1_BoxType)
  endif

  ifeq ($$($1_Type), Int)
    $1_type := int
    $1_BoxType := Integer

    $1_rawType := $$($1_type)
    $1_RawType := $$($1_Type)
    $1_RawBoxType := $$($1_BoxType)

    $1_ARGS += -KCAS
    $1_ARGS += -KAtomicAdd
    $1_ARGS += -KBitwise
  endif

  ifeq ($$($1_Type), Long)
    $1_type := long
    $1_BoxType := $$($1_Type)

    $1_rawType := $$($1_type)
    $1_RawType := $$($1_Type)
    $1_RawBoxType := $$($1_BoxType)

    $1_ARGS += -KCAS
    $1_ARGS += -KAtomicAdd
    $1_ARGS += -KBitwise
  endif

  ifeq ($$($1_Type), Float)
    $1_type := float
    $1_BoxType := $$($1_Type)

    $1_rawType := int
    $1_RawType := Int
    $1_RawBoxType := Integer

    $1_ARGS += -KCAS
    $1_ARGS += -KfloatingPoint
  endif

  ifeq ($$($1_Type), Double)
    $1_type := double
    $1_BoxType := $$($1_Type)

    $1_rawType := long
    $1_RawType := Long
    $1_RawBoxType := Long

    $1_ARGS += -KCAS
    $1_ARGS += -KfloatingPoint
  endif

  $$($1_FILENAME): $(VARHANDLES_SRC_DIR)/X-VarHandleByteArrayView.java.template $(BUILD_TOOLS_JDK)
	$$(call MakeDir, $$(@D))
	$(RM) $$@
	$(TOOL_SPP) -nel -K$$($1_type) \
	    -Dtype=$$($1_type) -DType=$$($1_Type) -DBoxType=$$($1_BoxType) \
	    -DrawType=$$($1_rawType) -DRawType=$$($1_RawType) -DRawBoxType=$$($1_RawBoxType) \
	    $$($1_ARGS) -i$$< -o$$@

  GENSRC_VARHANDLES += $$($1_FILENAME)
endef

################################################################################

# List the types to generate source for, with capitalized first letter
VARHANDLES_TYPES := Boolean Byte Short Char Int Long Float Double Reference
$(foreach t, $(VARHANDLES_TYPES), \
  $(eval $(call GenerateVarHandle,VAR_HANDLE_$t,$t)))

# List the types to generate source for, with capitalized first letter
VARHANDLES_BYTE_ARRAY_TYPES := Short Char Int Long Float Double
$(foreach t, $(VARHANDLES_BYTE_ARRAY_TYPES), \
  $(eval $(call GenerateVarHandleByteArray,VAR_HANDLE_BYTE_ARRAY_$t,$t)))

GENSRC_JAVA_BASE += $(GENSRC_VARHANDLES)

# Include custom extension post hook
$(eval $(call IncludeCustomExtension, gensrc/GensrcVarHandles-post.gmk))