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3d643c64ae
Add support for literal completion candidates such as "[]int{}" or
"make([]int, 0)". We support both named and unnamed types. I used the
existing type matching logic, so, for example, if the expected type is
an interface, we will suggest literal candidates that implement the
interface.
The literal candidates have a lower score than normal matching
candidates, so they shouldn't be disruptive in cases where you don't
want a literal candidate.
This commit adds support for slice, array, struct, map, and channel
literal candidates since they are pretty similar. Functions will be
supported in a subsequent commit.
I also added support for setting a snippet's final tab stop. This is
useful if you want the cursor to end up somewhere other than the
character after the snippet.
Change-Id: Id3b74260fff4d61703989b422267021b00cec005
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193698
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package snippet
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import (
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"testing"
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)
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func TestSnippetBuilder(t *testing.T) {
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expect := func(expected string, fn func(*Builder)) {
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t.Helper()
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var b Builder
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fn(&b)
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if got := b.String(); got != expected {
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t.Errorf("got %q, expected %q", got, expected)
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}
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}
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expect("", func(b *Builder) {})
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expect(`hi { \} \$ | " , / \\`, func(b *Builder) {
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b.WriteText(`hi { } $ | " , / \`)
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})
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expect("${1:}", func(b *Builder) {
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b.WritePlaceholder(nil)
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})
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expect("hi ${1:there}", func(b *Builder) {
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b.WriteText("hi ")
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b.WritePlaceholder(func(b *Builder) {
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b.WriteText("there")
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})
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})
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expect(`${1:id=${2:{your id\}}}`, func(b *Builder) {
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b.WritePlaceholder(func(b *Builder) {
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b.WriteText("id=")
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b.WritePlaceholder(func(b *Builder) {
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b.WriteText("{your id}")
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})
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})
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})
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expect(`${1|one,{ \} \$ \| " \, / \\,three|}`, func(b *Builder) {
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b.WriteChoice([]string{"one", `{ } $ | " , / \`, "three"})
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})
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expect("$0 hello", func(b *Builder) {
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b.WriteFinalTabstop()
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b.WriteText(" hello")
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})
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}
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