Godeps, vendor: convert dependency management to trash (#3198)

This commit converts the dependency management from Godeps to the vendor
folder, also switching the tool from godep to trash. Since the upstream tool
lacks a few features proposed via a few PRs, until those PRs are merged in
(if), use github.com/karalabe/trash.

You can update dependencies via trash --update.

All dependencies have been updated to their latest version.

Parts of the build system are reworked to drop old notions of Godeps and
invocation of the go vet command so that it doesn't run against the vendor
folder, as that will just blow up during vetting.

The conversion drops OpenCL (and hence GPU mining support) from ethash and our
codebase. The short reasoning is that there's noone to maintain and having
opencl libs in our deps messes up builds as go install ./... tries to build
them, failing with unsatisfied link errors for the C OpenCL deps.

golang.org/x/net/context is not vendored in. We expect it to be fetched by the
user (i.e. using go get). To keep ci.go builds reproducible the package is
"vendored" in build/_vendor.

1 files changed, 103 insertions, 0 deletions

diff --git a/vendor/github.com/robertkrimen/otto/type_reference.go b/vendor/github.com/robertkrimen/otto/type_reference.go
new file mode 100644
index 000000000..fd770c6f4
--- /dev/null
+++ b/vendor/github.com/robertkrimen/otto/type_reference.go
@@ -0,0 +1,103 @@
+package otto
+
+type _reference interface {
+	invalid() bool         // IsUnresolvableReference
+	getValue() Value       // getValue
+	putValue(Value) string // PutValue
+	delete() bool
+}
+
+// PropertyReference
+
+type _propertyReference struct {
+	name    string
+	strict  bool
+	base    *_object
+	runtime *_runtime
+	at      _at
+}
+
+func newPropertyReference(rt *_runtime, base *_object, name string, strict bool, at _at) *_propertyReference {
+	return &_propertyReference{
+		runtime: rt,
+		name:    name,
+		strict:  strict,
+		base:    base,
+		at:      at,
+	}
+}
+
+func (self *_propertyReference) invalid() bool {
+	return self.base == nil
+}
+
+func (self *_propertyReference) getValue() Value {
+	if self.base == nil {
+		panic(self.runtime.panicReferenceError("'%s' is not defined", self.name, self.at))
+	}
+	return self.base.get(self.name)
+}
+
+func (self *_propertyReference) putValue(value Value) string {
+	if self.base == nil {
+		return self.name
+	}
+	self.base.put(self.name, value, self.strict)
+	return ""
+}
+
+func (self *_propertyReference) delete() bool {
+	if self.base == nil {
+		// TODO Throw an error if strict
+		return true
+	}
+	return self.base.delete(self.name, self.strict)
+}
+
+// ArgumentReference
+
+func newArgumentReference(runtime *_runtime, base *_object, name string, strict bool, at _at) *_propertyReference {
+	if base == nil {
+		panic(hereBeDragons())
+	}
+	return newPropertyReference(runtime, base, name, strict, at)
+}
+
+type _stashReference struct {
+	name   string
+	strict bool
+	base   _stash
+}
+
+func (self *_stashReference) invalid() bool {
+	return false // The base (an environment) will never be nil
+}
+
+func (self *_stashReference) getValue() Value {
+	return self.base.getBinding(self.name, self.strict)
+}
+
+func (self *_stashReference) putValue(value Value) string {
+	self.base.setValue(self.name, value, self.strict)
+	return ""
+}
+
+func (self *_stashReference) delete() bool {
+	if self.base == nil {
+		// This should never be reached, but just in case
+		return false
+	}
+	return self.base.deleteBinding(self.name)
+}
+
+// getIdentifierReference
+
+func getIdentifierReference(runtime *_runtime, stash _stash, name string, strict bool, at _at) _reference {
+	if stash == nil {
+		return newPropertyReference(runtime, nil, name, strict, at)
+	}
+	if stash.hasBinding(name) {
+		return stash.newReference(name, strict, at)
+	}
+	return getIdentifierReference(runtime, stash.outer(), name, strict, at)
+}