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authorJeffrey Wilcke <jeffrey@ethereum.org>2017-03-01 08:11:24 +0800
committerFelix Lange <fjl@users.noreply.github.com>2017-03-01 08:11:24 +0800
commit230cf2ec9142b6a8f421cb8873deb5df1566e89c (patch)
treeb437803c8d90384d8ecb68e8a180db384535c018 /cmd/evm/internal
parent7ff75ac2f2f8a62d52367271194aa7889a5b5c88 (diff)
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cmd/evm, core/asm: add EVM assembler (#3686)
The evm compile command implements a simple assembly language that compiles to EVM bytecode.
Diffstat (limited to 'cmd/evm/internal')
-rw-r--r--cmd/evm/internal/compiler/compiler.go39
1 files changed, 39 insertions, 0 deletions
diff --git a/cmd/evm/internal/compiler/compiler.go b/cmd/evm/internal/compiler/compiler.go
new file mode 100644
index 000000000..753ca6226
--- /dev/null
+++ b/cmd/evm/internal/compiler/compiler.go
@@ -0,0 +1,39 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum 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 for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package compiler
+
+import (
+ "errors"
+ "fmt"
+
+ "github.com/ethereum/go-ethereum/core/asm"
+)
+
+func Compile(fn string, src []byte, debug bool) (string, error) {
+ compiler := asm.NewCompiler(debug)
+ compiler.Feed(asm.Lex(fn, src, debug))
+
+ bin, compileErrors := compiler.Compile()
+ if len(compileErrors) > 0 {
+ // report errors
+ for _, err := range compileErrors {
+ fmt.Printf("%s:%v\n", fn, err)
+ }
+ return "", errors.New("compiling failed")
+ }
+ return bin, nil
+}