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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
64 lines
1.8 KiB
Go
64 lines
1.8 KiB
Go
//===- annotations.go - annotation processor ------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file converts llgo annotations into attributes.
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//
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//===----------------------------------------------------------------------===//
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package irgen
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import (
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"go/ast"
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"go/token"
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"llvm.org/llgo/third_party/gotools/go/loader"
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"llvm.org/llgo/third_party/gotools/go/ssa"
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"llvm.org/llgo/third_party/gotools/go/types"
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"llvm.org/llvm/bindings/go/llvm"
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)
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// processAnnotations takes an *ssa.Package and a
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// *importer.PackageInfo, and processes all of the
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// llgo source annotations attached to each top-level
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// function and global variable.
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func (c *compiler) processAnnotations(u *unit, pkginfo *loader.PackageInfo) {
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members := make(map[types.Object]llvm.Value, len(u.globals))
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for k, v := range u.globals {
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members[k.(ssa.Member).Object()] = v
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}
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applyAttributes := func(attrs []Attribute, idents ...*ast.Ident) {
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if len(attrs) == 0 {
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return
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}
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for _, ident := range idents {
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if v := members[pkginfo.ObjectOf(ident)]; !v.IsNil() {
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for _, attr := range attrs {
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attr.Apply(v)
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}
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}
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}
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}
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for _, f := range pkginfo.Files {
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for _, decl := range f.Decls {
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switch decl := decl.(type) {
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case *ast.FuncDecl:
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attrs := parseAttributes(decl.Doc)
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applyAttributes(attrs, decl.Name)
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case *ast.GenDecl:
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if decl.Tok != token.VAR {
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continue
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}
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for _, spec := range decl.Specs {
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varspec := spec.(*ast.ValueSpec)
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attrs := parseAttributes(decl.Doc)
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applyAttributes(attrs, varspec.Names...)
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}
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}
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}
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}
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}
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