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prog: add MaxArgs const

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Move the const from the compiler.
In preparation for future changes.
This commit is contained in:
Dmitry Vyukov 2020-03-31 13:29:37 +02:00
parent 22968402ee
commit 8950ec3f51
2 changed files with 6 additions and 3 deletions
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5
pkg/compiler/check.go
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@ -146,7 +146,6 @@ func (comp *compiler) checkNames() {
}
func (comp *compiler) checkFields() {
const maxArgs = 9 // executor does not support more
for _, decl := range comp.desc.Nodes {
switch n := decl.(type) {
case *ast.Struct:
@ -160,9 +159,9 @@ func (comp *compiler) checkFields() {
case *ast.Call:
name := n.Name.Name
comp.checkFieldGroup(n.Args, "argument", "syscall "+name)
if len(n.Args) > maxArgs {
if len(n.Args) > prog.MaxArgs {
comp.error(n.Pos, "syscall %v has %v arguments, allowed maximum is %v",
name, len(n.Args), maxArgs)
name, len(n.Args), prog.MaxArgs)
}
}
}

4
prog/types.go
View File

@ -21,6 +21,10 @@ type Syscall struct {
outputResources []*ResourceDesc
}
// MaxArgs is maximum number of syscall arguments.
// Executor also knows about this value.
const MaxArgs = 9
type Dir int
const (