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compiler: make Notify accept varargs

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This commit is contained in:
Evgenii Stratonikov 2020-04-05 18:05:40 +03:00
parent c0b5271386
commit efad66aee1
3 changed files with 46 additions and 3 deletions
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10
pkg/compiler/codegen.go
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@ -662,7 +662,7 @@ func (c *codegen) Visit(node ast.Node) ast.Visitor {
// We can be sure builtins are of type *ast.Ident.
c.convertBuiltin(n)
case isSyscall(f):
c.convertSyscall(f.selector.Name, f.name)
c.convertSyscall(n, f.selector.Name, f.name)
default:
emit.Call(c.prog.BinWriter, opcode.CALL, f.label)
}
@ -978,12 +978,18 @@ func (c *codegen) getByteArray(expr ast.Expr) []byte {
}
}
func (c *codegen) convertSyscall(api, name string) {
func (c *codegen) convertSyscall(expr *ast.CallExpr, api, name string) {
api, ok := syscalls[api][name]
if !ok {
c.prog.Err = fmt.Errorf("unknown VM syscall api: %s", name)
return
}
switch name {
case "Notify":
numArgs := len(expr.Args)
emit.Int(c.prog.BinWriter, int64(numArgs))
emit.Opcode(c.prog.BinWriter, opcode.PACK)
}
emit.Syscall(c.prog.BinWriter, api)
// This NOP instruction is basically not needed, but if we do, we have a