enable some more linters

.golangci.yml

@@ -0,0 +1,23 @@
+linters:
+  enable-all: false
+  enable:
+    - structcheck
+    - varcheck
+    - ineffassign
+    - typecheck
+    - megacheck
+    - deadcode
+    - govet
+    - errcheck
+    - goimports
+    - depguard
+    - goconst
+    - unconvert
+    - gocritic
+
+linters-settings:
+  depguard:
+    list-type: whitelist
+    packages:
+      - github.com/mmcloughlin/avo
+      - golang.org/x/arch/x86

.travis.yml

@@ -1,6 +1,8 @@
 language: go
 go:
 - 1.11.1
+install:
+- ./script/bootstrap
 script:
 - ./script/lint
 - go test ./...

internal/load/load.go

@@ -374,8 +374,7 @@ func operand(op opcodesxml.Operand) inst.Operand {
 func datasize(f opcodesxml.Form) int {
 	// Determine from encoding bits.
 	e := f.Encoding
-	switch {
-	case e.VEX != nil && e.VEX.W == nil:
+	if e.VEX != nil && e.VEX.W == nil {
 		return 128 << e.VEX.L
 	}
 

script/lint

@@ -3,3 +3,6 @@
 # Ensure the repository is clean after code generation.
 ./script/generate
 test -z "$(git status --porcelain)"
+
+# Run suite of golangci-lint checks.
+golangci-lint run