1 files changed, 0 insertions, 239 deletions
diff --git a/vendor/golang.org/x/tools/go/ssa/methods.go b/vendor/golang.org/x/tools/go/ssa/methods.go
deleted file mode 100644
index 080dca9..0000000
--- a/vendor/golang.org/x/tools/go/ssa/methods.go
+++ /dev/null
@@ -1,239 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssa
-
-// This file defines utilities for population of method sets.
-
-import (
-	"fmt"
-	"go/types"
-)
-
-// MethodValue returns the Function implementing method sel, building
-// wrapper methods on demand.  It returns nil if sel denotes an
-// abstract (interface) method.
-//
-// Precondition: sel.Kind() == MethodVal.
-//
-// Thread-safe.
-//
-// EXCLUSIVE_LOCKS_ACQUIRED(prog.methodsMu)
-//
-func (prog *Program) MethodValue(sel *types.Selection) *Function {
-	if sel.Kind() != types.MethodVal {
-		panic(fmt.Sprintf("Method(%s) kind != MethodVal", sel))
-	}
-	T := sel.Recv()
-	if isInterface(T) {
-		return nil // abstract method
-	}
-	if prog.mode&LogSource != 0 {
-		defer logStack("Method %s %v", T, sel)()
-	}
-
-	prog.methodsMu.Lock()
-	defer prog.methodsMu.Unlock()
-
-	return prog.addMethod(prog.createMethodSet(T), sel)
-}
-
-// LookupMethod returns the implementation of the method of type T
-// identified by (pkg, name).  It returns nil if the method exists but
-// is abstract, and panics if T has no such method.
-//
-func (prog *Program) LookupMethod(T types.Type, pkg *types.Package, name string) *Function {
-	sel := prog.MethodSets.MethodSet(T).Lookup(pkg, name)
-	if sel == nil {
-		panic(fmt.Sprintf("%s has no method %s", T, types.Id(pkg, name)))
-	}
-	return prog.MethodValue(sel)
-}
-
-// methodSet contains the (concrete) methods of a non-interface type.
-type methodSet struct {
-	mapping  map[string]*Function // populated lazily
-	complete bool                 // mapping contains all methods
-}
-
-// Precondition: !isInterface(T).
-// EXCLUSIVE_LOCKS_REQUIRED(prog.methodsMu)
-func (prog *Program) createMethodSet(T types.Type) *methodSet {
-	mset, ok := prog.methodSets.At(T).(*methodSet)
-	if !ok {
-		mset = &methodSet{mapping: make(map[string]*Function)}
-		prog.methodSets.Set(T, mset)
-	}
-	return mset
-}
-
-// EXCLUSIVE_LOCKS_REQUIRED(prog.methodsMu)
-func (prog *Program) addMethod(mset *methodSet, sel *types.Selection) *Function {
-	if sel.Kind() == types.MethodExpr {
-		panic(sel)
-	}
-	id := sel.Obj().Id()
-	fn := mset.mapping[id]
-	if fn == nil {
-		obj := sel.Obj().(*types.Func)
-
-		needsPromotion := len(sel.Index()) > 1
-		needsIndirection := !isPointer(recvType(obj)) && isPointer(sel.Recv())
-		if needsPromotion || needsIndirection {
-			fn = makeWrapper(prog, sel)
-		} else {
-			fn = prog.declaredFunc(obj)
-		}
-		if fn.Signature.Recv() == nil {
-			panic(fn) // missing receiver
-		}
-		mset.mapping[id] = fn
-	}
-	return fn
-}
-
-// RuntimeTypes returns a new unordered slice containing all
-// concrete types in the program for which a complete (non-empty)
-// method set is required at run-time.
-//
-// Thread-safe.
-//
-// EXCLUSIVE_LOCKS_ACQUIRED(prog.methodsMu)
-//
-func (prog *Program) RuntimeTypes() []types.Type {
-	prog.methodsMu.Lock()
-	defer prog.methodsMu.Unlock()
-
-	var res []types.Type
-	prog.methodSets.Iterate(func(T types.Type, v interface{}) {
-		if v.(*methodSet).complete {
-			res = append(res, T)
-		}
-	})
-	return res
-}
-
-// declaredFunc returns the concrete function/method denoted by obj.
-// Panic ensues if there is none.
-//
-func (prog *Program) declaredFunc(obj *types.Func) *Function {
-	if v := prog.packageLevelValue(obj); v != nil {
-		return v.(*Function)
-	}
-	panic("no concrete method: " + obj.String())
-}
-
-// needMethodsOf ensures that runtime type information (including the
-// complete method set) is available for the specified type T and all
-// its subcomponents.
-//
-// needMethodsOf must be called for at least every type that is an
-// operand of some MakeInterface instruction, and for the type of
-// every exported package member.
-//
-// Precondition: T is not a method signature (*Signature with Recv()!=nil).
-//
-// Thread-safe.  (Called via emitConv from multiple builder goroutines.)
-//
-// TODO(adonovan): make this faster.  It accounts for 20% of SSA build time.
-//
-// EXCLUSIVE_LOCKS_ACQUIRED(prog.methodsMu)
-//
-func (prog *Program) needMethodsOf(T types.Type) {
-	prog.methodsMu.Lock()
-	prog.needMethods(T, false)
-	prog.methodsMu.Unlock()
-}
-
-// Precondition: T is not a method signature (*Signature with Recv()!=nil).
-// Recursive case: skip => don't create methods for T.
-//
-// EXCLUSIVE_LOCKS_REQUIRED(prog.methodsMu)
-//
-func (prog *Program) needMethods(T types.Type, skip bool) {
-	// Each package maintains its own set of types it has visited.
-	if prevSkip, ok := prog.runtimeTypes.At(T).(bool); ok {
-		// needMethods(T) was previously called
-		if !prevSkip || skip {
-			return // already seen, with same or false 'skip' value
-		}
-	}
-	prog.runtimeTypes.Set(T, skip)
-
-	tmset := prog.MethodSets.MethodSet(T)
-
-	if !skip && !isInterface(T) && tmset.Len() > 0 {
-		// Create methods of T.
-		mset := prog.createMethodSet(T)
-		if !mset.complete {
-			mset.complete = true
-			n := tmset.Len()
-			for i := 0; i < n; i++ {
-				prog.addMethod(mset, tmset.At(i))
-			}
-		}
-	}
-
-	// Recursion over signatures of each method.
-	for i := 0; i < tmset.Len(); i++ {
-		sig := tmset.At(i).Type().(*types.Signature)
-		prog.needMethods(sig.Params(), false)
-		prog.needMethods(sig.Results(), false)
-	}
-
-	switch t := T.(type) {
-	case *types.Basic:
-		// nop
-
-	case *types.Interface:
-		// nop---handled by recursion over method set.
-
-	case *types.Pointer:
-		prog.needMethods(t.Elem(), false)
-
-	case *types.Slice:
-		prog.needMethods(t.Elem(), false)
-
-	case *types.Chan:
-		prog.needMethods(t.Elem(), false)
-
-	case *types.Map:
-		prog.needMethods(t.Key(), false)
-		prog.needMethods(t.Elem(), false)
-
-	case *types.Signature:
-		if t.Recv() != nil {
-			panic(fmt.Sprintf("Signature %s has Recv %s", t, t.Recv()))
-		}
-		prog.needMethods(t.Params(), false)
-		prog.needMethods(t.Results(), false)
-
-	case *types.Named:
-		// A pointer-to-named type can be derived from a named
-		// type via reflection.  It may have methods too.
-		prog.needMethods(types.NewPointer(T), false)
-
-		// Consider 'type T struct{S}' where S has methods.
-		// Reflection provides no way to get from T to struct{S},
-		// only to S, so the method set of struct{S} is unwanted,
-		// so set 'skip' flag during recursion.
-		prog.needMethods(t.Underlying(), true)
-
-	case *types.Array:
-		prog.needMethods(t.Elem(), false)
-
-	case *types.Struct:
-		for i, n := 0, t.NumFields(); i < n; i++ {
-			prog.needMethods(t.Field(i).Type(), false)
-		}
-
-	case *types.Tuple:
-		for i, n := 0, t.Len(); i < n; i++ {
-			prog.needMethods(t.At(i).Type(), false)
-		}
-
-	default:
-		panic(T)
-	}
-}