From 14839e027f5310346718aea385cea5e45f017170 Mon Sep 17 00:00:00 2001
From: Michael Pratt <mpratt@google.com>
Date: Thu, 23 Jul 2020 08:13:00 -0700
Subject: [PATCH] Internal change

PiperOrigin-RevId: 322788791
---
 tools/nogo/build.go |  4 ++--
 tools/nogo/defs.bzl | 20 ++++++++++++--------
 tools/nogo/nogo.go  |  3 ++-
 3 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/tools/nogo/build.go b/tools/nogo/build.go
index fb9f17b62..433d13738 100644
--- a/tools/nogo/build.go
+++ b/tools/nogo/build.go
@@ -31,10 +31,10 @@ var (
 )
 
 // findStdPkg needs to find the bundled standard library packages.
-func findStdPkg(path, GOOS, GOARCH string) (io.ReadCloser, error) {
+func (i *importer) findStdPkg(path string) (io.ReadCloser, error) {
 	if path == "C" {
 		// Cgo builds cannot be analyzed. Skip.
 		return nil, ErrSkip
 	}
-	return os.Open(fmt.Sprintf("external/go_sdk/pkg/%s_%s/%s.a", GOOS, GOARCH, path))
+	return os.Open(fmt.Sprintf("external/go_sdk/pkg/%s_%s/%s.a", i.GOOS, i.GOARCH, path))
 }
diff --git a/tools/nogo/defs.bzl b/tools/nogo/defs.bzl
index 6560b57c8..d399079c5 100644
--- a/tools/nogo/defs.bzl
+++ b/tools/nogo/defs.bzl
@@ -28,8 +28,10 @@ def _nogo_aspect_impl(target, ctx):
     else:
         return [NogoInfo()]
 
-    # Construct the Go environment from the go_context.env dictionary.
-    env_prefix = " ".join(["%s=%s" % (key, value) for (key, value) in go_context(ctx).env.items()])
+    go_ctx = go_context(ctx)
+
+    # Construct the Go environment from the go_ctx.env dictionary.
+    env_prefix = " ".join(["%s=%s" % (key, value) for (key, value) in go_ctx.env.items()])
 
     # Start with all target files and srcs as input.
     inputs = target.files.to_list() + srcs
@@ -45,7 +47,7 @@ def _nogo_aspect_impl(target, ctx):
         "#!/bin/bash",
         "%s %s tool objdump %s > %s\n" % (
             env_prefix,
-            go_context(ctx).go.path,
+            go_ctx.go.path,
             [f.path for f in binaries if f.path.endswith(".a")][0],
             disasm_file.path,
         ),
@@ -53,7 +55,7 @@ def _nogo_aspect_impl(target, ctx):
     ctx.actions.run(
         inputs = binaries,
         outputs = [disasm_file],
-        tools = go_context(ctx).runfiles,
+        tools = go_ctx.runfiles,
         mnemonic = "GoObjdump",
         progress_message = "Objdump %s" % target.label,
         executable = dumper,
@@ -70,9 +72,11 @@ def _nogo_aspect_impl(target, ctx):
         ImportPath = importpath,
         GoFiles = [src.path for src in srcs if src.path.endswith(".go")],
         NonGoFiles = [src.path for src in srcs if not src.path.endswith(".go")],
-        GOOS = go_context(ctx).goos,
-        GOARCH = go_context(ctx).goarch,
-        Tags = go_context(ctx).tags,
+        # Google's internal build system needs a bit more help to find std.
+        StdZip = go_ctx.std_zip.short_path if hasattr(go_ctx, "std_zip") else "",
+        GOOS = go_ctx.goos,
+        GOARCH = go_ctx.goarch,
+        Tags = go_ctx.tags,
         FactMap = {},  # Constructed below.
         ImportMap = {},  # Constructed below.
         FactOutput = facts.path,
@@ -110,7 +114,7 @@ def _nogo_aspect_impl(target, ctx):
     ctx.actions.run(
         inputs = inputs,
         outputs = [facts],
-        tools = go_context(ctx).runfiles,
+        tools = go_ctx.runfiles,
         executable = ctx.files._nogo[0],
         mnemonic = "GoStaticAnalysis",
         progress_message = "Analyzing %s" % target.label,
diff --git a/tools/nogo/nogo.go b/tools/nogo/nogo.go
index 5ee586c3e..ea1e97076 100644
--- a/tools/nogo/nogo.go
+++ b/tools/nogo/nogo.go
@@ -55,6 +55,7 @@ type pkgConfig struct {
 	FactMap    map[string]string
 	FactOutput string
 	Objdump    string
+	StdZip     string
 }
 
 // loadFacts finds and loads facts per FactMap.
@@ -111,7 +112,7 @@ func (i *importer) Import(path string) (*types.Package, error) {
 	if !ok {
 		// Not found in the import path. Attempt to find the package
 		// via the standard library.
-		rc, err = findStdPkg(path, i.GOOS, i.GOARCH)
+		rc, err = i.findStdPkg(path)
 	} else {
 		// Open the file.
 		rc, err = os.Open(realPath)