From 1a9e66915b415cb1ca2bc2680f8fb4ff1883787c Mon Sep 17 00:00:00 2001 From: Felix Lange Date: Wed, 15 Jun 2016 00:36:31 +0200 Subject: common/compiler: simplify solc wrapper Support for legacy version 0.9.x is gone. The compiler version is no longer cached. Compilation results (and the version) are read directly from stdout using the --combined-json flag. As a workaround for ethereum/solidity#651, source code is written to a temporary file before compilation. Integration of solc in package ethapi and cmd/abigen is now much simpler because the compiler wrapper is no longer passed around as a pointer. Fixes #2806, accidentally --- internal/ethapi/api.go | 68 ++------------------------------------ internal/ethapi/backend.go | 13 +++----- internal/ethapi/solc.go | 82 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 90 insertions(+), 73 deletions(-) create mode 100644 internal/ethapi/solc.go (limited to 'internal/ethapi') diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go index 88bacc45b..ac9e2151d 100644 --- a/internal/ethapi/api.go +++ b/internal/ethapi/api.go @@ -20,7 +20,6 @@ import ( "bytes" "encoding/hex" "encoding/json" - "errors" "fmt" "math/big" "strings" @@ -30,7 +29,6 @@ import ( "github.com/ethereum/ethash" "github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/compiler" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/vm" @@ -50,14 +48,12 @@ const defaultGas = uint64(90000) // PublicEthereumAPI provides an API to access Ethereum related information. // It offers only methods that operate on public data that is freely available to anyone. type PublicEthereumAPI struct { - b Backend - solcPath *string - solc **compiler.Solidity + b Backend } // NewPublicEthereumAPI creates a new Etheruem protocol API. -func NewPublicEthereumAPI(b Backend, solcPath *string, solc **compiler.Solidity) *PublicEthereumAPI { - return &PublicEthereumAPI{b, solcPath, solc} +func NewPublicEthereumAPI(b Backend) *PublicEthereumAPI { + return &PublicEthereumAPI{b} } // GasPrice returns a suggestion for a gas price. @@ -65,39 +61,6 @@ func (s *PublicEthereumAPI) GasPrice(ctx context.Context) (*big.Int, error) { return s.b.SuggestPrice(ctx) } -func (s *PublicEthereumAPI) getSolc() (*compiler.Solidity, error) { - var err error - solc := *s.solc - if solc == nil { - solc, err = compiler.New(*s.solcPath) - } - return solc, err -} - -// GetCompilers returns the collection of available smart contract compilers -func (s *PublicEthereumAPI) GetCompilers() ([]string, error) { - solc, err := s.getSolc() - if err == nil && solc != nil { - return []string{"Solidity"}, nil - } - - return []string{}, nil -} - -// CompileSolidity compiles the given solidity source -func (s *PublicEthereumAPI) CompileSolidity(source string) (map[string]*compiler.Contract, error) { - solc, err := s.getSolc() - if err != nil { - return nil, err - } - - if solc == nil { - return nil, errors.New("solc (solidity compiler) not found") - } - - return solc.Compile(source) -} - // ProtocolVersion returns the current Ethereum protocol version this node supports func (s *PublicEthereumAPI) ProtocolVersion() *rpc.HexNumber { return rpc.NewHexNumber(s.b.ProtocolVersion()) @@ -1416,31 +1379,6 @@ func (s *PublicTransactionPoolAPI) Resend(ctx context.Context, tx *Tx, gasPrice, return common.Hash{}, fmt.Errorf("Transaction %#x not found", tx.Hash) } -// PrivateAdminAPI is the collection of Etheruem APIs exposed over the private -// admin endpoint. -type PrivateAdminAPI struct { - b Backend - solcPath *string - solc **compiler.Solidity -} - -// NewPrivateAdminAPI creates a new API definition for the private admin methods -// of the Ethereum service. -func NewPrivateAdminAPI(b Backend, solcPath *string, solc **compiler.Solidity) *PrivateAdminAPI { - return &PrivateAdminAPI{b, solcPath, solc} -} - -// SetSolc sets the Solidity compiler path to be used by the node. -func (api *PrivateAdminAPI) SetSolc(path string) (string, error) { - var err error - *api.solcPath = path - *api.solc, err = compiler.New(path) - if err != nil { - return "", err - } - return (*api.solc).Info(), nil -} - // PublicDebugAPI is the collection of Etheruem APIs exposed over the public // debugging endpoint. type PublicDebugAPI struct { diff --git a/internal/ethapi/backend.go b/internal/ethapi/backend.go index d112a6aef..791a06925 100644 --- a/internal/ethapi/backend.go +++ b/internal/ethapi/backend.go @@ -22,7 +22,6 @@ import ( "github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/compiler" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/vm" @@ -69,12 +68,13 @@ type State interface { GetNonce(ctx context.Context, addr common.Address) (uint64, error) } -func GetAPIs(apiBackend Backend, solcPath *string, solc **compiler.Solidity) []rpc.API { - return []rpc.API{ +func GetAPIs(apiBackend Backend, solcPath string) []rpc.API { + compiler := makeCompilerAPIs(solcPath) + all := []rpc.API{ { Namespace: "eth", Version: "1.0", - Service: NewPublicEthereumAPI(apiBackend, solcPath, solc), + Service: NewPublicEthereumAPI(apiBackend), Public: true, }, { Namespace: "eth", @@ -91,10 +91,6 @@ func GetAPIs(apiBackend Backend, solcPath *string, solc **compiler.Solidity) []r Version: "1.0", Service: NewPublicTxPoolAPI(apiBackend), Public: true, - }, { - Namespace: "admin", - Version: "1.0", - Service: NewPrivateAdminAPI(apiBackend, solcPath, solc), }, { Namespace: "debug", Version: "1.0", @@ -116,4 +112,5 @@ func GetAPIs(apiBackend Backend, solcPath *string, solc **compiler.Solidity) []r Public: false, }, } + return append(compiler, all...) } diff --git a/internal/ethapi/solc.go b/internal/ethapi/solc.go new file mode 100644 index 000000000..b9acc518b --- /dev/null +++ b/internal/ethapi/solc.go @@ -0,0 +1,82 @@ +// Copyright 2016 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library 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 Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package ethapi + +import ( + "sync" + + "github.com/ethereum/go-ethereum/common/compiler" + "github.com/ethereum/go-ethereum/rpc" +) + +func makeCompilerAPIs(solcPath string) []rpc.API { + c := &compilerAPI{solc: solcPath} + return []rpc.API{ + { + Namespace: "eth", + Version: "1.0", + Service: (*PublicCompilerAPI)(c), + Public: true, + }, + { + Namespace: "admin", + Version: "1.0", + Service: (*CompilerAdminAPI)(c), + Public: true, + }, + } +} + +type compilerAPI struct { + // This lock guards the solc path set through the API. + // It also ensures that only one solc process is used at + // any time. + mu sync.Mutex + solc string +} + +type CompilerAdminAPI compilerAPI + +// SetSolc sets the Solidity compiler path to be used by the node. +func (api *CompilerAdminAPI) SetSolc(path string) (string, error) { + api.mu.Lock() + defer api.mu.Unlock() + info, err := compiler.SolidityVersion(path) + if err != nil { + return "", err + } + api.solc = path + return info.FullVersion, nil +} + +type PublicCompilerAPI compilerAPI + +// CompileSolidity compiles the given solidity source. +func (api *PublicCompilerAPI) CompileSolidity(source string) (map[string]*compiler.Contract, error) { + api.mu.Lock() + defer api.mu.Unlock() + return compiler.CompileSolidityString(api.solc, source) +} + +func (api *PublicCompilerAPI) GetCompilers() ([]string, error) { + api.mu.Lock() + defer api.mu.Unlock() + if _, err := compiler.SolidityVersion(api.solc); err == nil { + return []string{"Solidity"}, nil + } + return []string{}, nil +} -- cgit v1.2.3