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27913dd2
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体验新版 GitCode,发现更多精彩内容 >>
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27913dd2
编写于
1月 03, 2019
作者:
D
Dragan Milic
提交者:
Guillaume Ballet
1月 03, 2019
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电子邮件补丁
差异文件
accounts/abi/bind: add optional block number for calls (#17942)
上级
ddaf48bf
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
70 addition
and
6 deletion
+70
-6
accounts/abi/bind/base.go
accounts/abi/bind/base.go
+6
-6
accounts/abi/bind/base_test.go
accounts/abi/bind/base_test.go
+64
-0
未找到文件。
accounts/abi/bind/base.go
浏览文件 @
27913dd2
...
...
@@ -36,10 +36,10 @@ type SignerFn func(types.Signer, common.Address, *types.Transaction) (*types.Tra
// CallOpts is the collection of options to fine tune a contract call request.
type
CallOpts
struct
{
Pending
bool
// Whether to operate on the pending state or the last known one
From
common
.
Address
// Optional the sender address, otherwise the first account is used
Context
context
.
Context
// Network context to support cancellation and timeouts (nil = no timeout)
Pending
bool
// Whether to operate on the pending state or the last known one
From
common
.
Address
// Optional the sender address, otherwise the first account is used
BlockNumber
*
big
.
Int
// Optional the block number on which the call should be performed
Context
context
.
Context
// Network context to support cancellation and timeouts (nil = no timeout)
}
// TransactOpts is the collection of authorization data required to create a
...
...
@@ -148,10 +148,10 @@ func (c *BoundContract) Call(opts *CallOpts, result interface{}, method string,
}
}
}
else
{
output
,
err
=
c
.
caller
.
CallContract
(
ctx
,
msg
,
nil
)
output
,
err
=
c
.
caller
.
CallContract
(
ctx
,
msg
,
opts
.
BlockNumber
)
if
err
==
nil
&&
len
(
output
)
==
0
{
// Make sure we have a contract to operate on, and bail out otherwise.
if
code
,
err
=
c
.
caller
.
CodeAt
(
ctx
,
c
.
address
,
nil
);
err
!=
nil
{
if
code
,
err
=
c
.
caller
.
CodeAt
(
ctx
,
c
.
address
,
opts
.
BlockNumber
);
err
!=
nil
{
return
err
}
else
if
len
(
code
)
==
0
{
return
ErrNoCode
...
...
accounts/abi/bind/base_test.go
0 → 100644
浏览文件 @
27913dd2
package
bind_test
import
(
"context"
"math/big"
"testing"
ethereum
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
)
type
mockCaller
struct
{
codeAtBlockNumber
*
big
.
Int
callContractBlockNumber
*
big
.
Int
}
func
(
mc
*
mockCaller
)
CodeAt
(
ctx
context
.
Context
,
contract
common
.
Address
,
blockNumber
*
big
.
Int
)
([]
byte
,
error
)
{
mc
.
codeAtBlockNumber
=
blockNumber
return
[]
byte
{
1
,
2
,
3
},
nil
}
func
(
mc
*
mockCaller
)
CallContract
(
ctx
context
.
Context
,
call
ethereum
.
CallMsg
,
blockNumber
*
big
.
Int
)
([]
byte
,
error
)
{
mc
.
callContractBlockNumber
=
blockNumber
return
nil
,
nil
}
func
TestPassingBlockNumber
(
t
*
testing
.
T
)
{
mc
:=
&
mockCaller
{}
bc
:=
bind
.
NewBoundContract
(
common
.
HexToAddress
(
"0x0"
),
abi
.
ABI
{
Methods
:
map
[
string
]
abi
.
Method
{
"something"
:
{
Name
:
"something"
,
Outputs
:
abi
.
Arguments
{},
},
},
},
mc
,
nil
,
nil
)
var
ret
string
blockNumber
:=
big
.
NewInt
(
42
)
bc
.
Call
(
&
bind
.
CallOpts
{
BlockNumber
:
blockNumber
},
&
ret
,
"something"
)
if
mc
.
callContractBlockNumber
!=
blockNumber
{
t
.
Fatalf
(
"CallContract() was not passed the block number"
)
}
if
mc
.
codeAtBlockNumber
!=
blockNumber
{
t
.
Fatalf
(
"CodeAt() was not passed the block number"
)
}
bc
.
Call
(
&
bind
.
CallOpts
{},
&
ret
,
"something"
)
if
mc
.
callContractBlockNumber
!=
nil
{
t
.
Fatalf
(
"CallContract() was passed a block number when it should not have been"
)
}
if
mc
.
codeAtBlockNumber
!=
nil
{
t
.
Fatalf
(
"CodeAt() was passed a block number when it should not have been"
)
}
}
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