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Diffstat (limited to 'core/vm/memory.go')
-rw-r--r--core/vm/memory.go48
1 files changed, 24 insertions, 24 deletions
diff --git a/core/vm/memory.go b/core/vm/memory.go
index 65ffe26c7..bbfa4cc2a 100644
--- a/core/vm/memory.go
+++ b/core/vm/memory.go
@@ -25,8 +25,8 @@ import (
// Memory implements a simple memory model for the ethereum virtual machine.
type Memory struct {
- store []byte
- lastGasCost uint64
+ Store []byte
+ LastGasCost uint64
}
// NewMemory returns a new memory model.
@@ -39,33 +39,33 @@ func (m *Memory) Set(offset, size uint64, value []byte) {
// It's possible the offset is greater than 0 and size equals 0. This is because
// the calcMemSize (common.go) could potentially return 0 when size is zero (NO-OP)
if size > 0 {
- // length of store may never be less than offset + size.
- // The store should be resized PRIOR to setting the memory
- if offset+size > uint64(len(m.store)) {
- panic("invalid memory: store empty")
+ // length of.Store may never be less than offset + size.
+ // The.Store should be resized PRIOR to setting the memory
+ if offset+size > uint64(len(m.Store)) {
+ panic("invalid memory:.Store empty")
}
- copy(m.store[offset:offset+size], value)
+ copy(m.Store[offset:offset+size], value)
}
}
// Set32 sets the 32 bytes starting at offset to the value of val, left-padded with zeroes to
// 32 bytes.
func (m *Memory) Set32(offset uint64, val *big.Int) {
- // length of store may never be less than offset + size.
- // The store should be resized PRIOR to setting the memory
- if offset+32 > uint64(len(m.store)) {
- panic("invalid memory: store empty")
+ // length of.Store may never be less than offset + size.
+ // The.Store should be resized PRIOR to setting the memory
+ if offset+32 > uint64(len(m.Store)) {
+ panic("invalid memory:.Store empty")
}
// Zero the memory area
- copy(m.store[offset:offset+32], []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
+ copy(m.Store[offset:offset+32], []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
// Fill in relevant bits
- math.ReadBits(val, m.store[offset:offset+32])
+ math.ReadBits(val, m.Store[offset:offset+32])
}
// Resize resizes the memory to size
func (m *Memory) Resize(size uint64) {
if uint64(m.Len()) < size {
- m.store = append(m.store, make([]byte, size-uint64(m.Len()))...)
+ m.Store = append(m.Store, make([]byte, size-uint64(m.Len()))...)
}
}
@@ -75,9 +75,9 @@ func (m *Memory) Get(offset, size int64) (cpy []byte) {
return nil
}
- if len(m.store) > int(offset) {
+ if len(m.Store) > int(offset) {
cpy = make([]byte, size)
- copy(cpy, m.store[offset:offset+size])
+ copy(cpy, m.Store[offset:offset+size])
return
}
@@ -91,8 +91,8 @@ func (m *Memory) GetPtr(offset, size int64) []byte {
return nil
}
- if len(m.store) > int(offset) {
- return m.store[offset : offset+size]
+ if len(m.Store) > int(offset) {
+ return m.Store[offset : offset+size]
}
return nil
@@ -100,21 +100,21 @@ func (m *Memory) GetPtr(offset, size int64) []byte {
// Len returns the length of the backing slice
func (m *Memory) Len() int {
- return len(m.store)
+ return len(m.Store)
}
// Data returns the backing slice
func (m *Memory) Data() []byte {
- return m.store
+ return m.Store
}
// Print dumps the content of the memory.
func (m *Memory) Print() {
- fmt.Printf("### mem %d bytes ###\n", len(m.store))
- if len(m.store) > 0 {
+ fmt.Printf("### mem %d bytes ###\n", len(m.Store))
+ if len(m.Store) > 0 {
addr := 0
- for i := 0; i+32 <= len(m.store); i += 32 {
- fmt.Printf("%03d: % x\n", addr, m.store[i:i+32])
+ for i := 0; i+32 <= len(m.Store); i += 32 {
+ fmt.Printf("%03d: % x\n", addr, m.Store[i:i+32])
addr++
}
} else {