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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>
99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
package snippets
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func _() {
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[]int{} //@item(litIntSlice, "[]int{}", "", "var")
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make([]int, 0) //@item(makeIntSlice, "make([]int, 0)", "", "func")
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var slice []int
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slice = i //@snippet(" //", litIntSlice, "[]int{$0\\}", "[]int{$0\\}")
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slice = m //@snippet(" //", makeIntSlice, "make([]int, ${1:})", "make([]int, ${1:0})")
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}
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func _() {
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type namedInt []int
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namedInt{} //@item(litNamedSlice, "namedInt{}", "", "var")
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make(namedInt, 0) //@item(makeNamedSlice, "make(namedInt, 0)", "", "func")
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var namedSlice namedInt
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namedSlice = n //@snippet(" //", litNamedSlice, "namedInt{$0\\}", "namedInt{$0\\}")
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namedSlice = m //@snippet(" //", makeNamedSlice, "make(namedInt, ${1:})", "make(namedInt, ${1:0})")
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}
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func _() {
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make(chan int) //@item(makeChan, "make(chan int)", "", "func")
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var ch chan int
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ch = m //@snippet(" //", makeChan, "make(chan int)", "make(chan int)")
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}
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func _() {
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map[string]struct{}{} //@item(litMap, "map[string]struct{}{}", "", "var")
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make(map[string]struct{}) //@item(makeMap, "make(map[string]struct{})", "", "func")
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var m map[string]struct{}
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m = m //@snippet(" //", litMap, "map[string]struct{\\}{$0\\}", "map[string]struct{\\}{$0\\}")
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m = m //@snippet(" //", makeMap, "make(map[string]struct{\\})", "make(map[string]struct{\\})")
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struct{}{} //@item(litEmptyStruct, "struct{}{}", "", "var")
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m["hi"] = s //@snippet(" //", litEmptyStruct, "struct{\\}{\\}", "struct{\\}{\\}")
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}
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func _() {
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type myStruct struct{ i int }
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myStruct{} //@item(litStruct, "myStruct{}", "", "var")
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&myStruct{} //@item(litStructPtr, "&myStruct{}", "", "var")
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var ms myStruct
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ms = m //@snippet(" //", litStruct, "myStruct{$0\\}", "myStruct{$0\\}")
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var msPtr *myStruct
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msPtr = m //@snippet(" //", litStructPtr, "&myStruct{$0\\}", "&myStruct{$0\\}")
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msPtr = &m //@snippet(" //", litStruct, "myStruct{$0\\}", "myStruct{$0\\}")
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}
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type myImpl struct{}
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func (myImpl) foo() {}
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func (*myImpl) bar() {}
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func _() {
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type myIntf interface {
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foo()
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}
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myImpl{} //@item(litImpl, "myImpl{}", "", "var")
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var mi myIntf
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mi = m //@snippet(" //", litImpl, "myImpl{\\}", "myImpl{\\}")
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// only satisfied by pointer to myImpl
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type myPtrIntf interface {
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bar()
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}
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&myImpl{} //@item(litImplPtr, "&myImpl{}", "", "var")
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var mpi myPtrIntf
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mpi = m //@snippet(" //", litImplPtr, "&myImpl{\\}", "&myImpl{\\}")
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}
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func _() {
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var s struct{ i []int } //@item(litSliceField, "i", "[]int", "field")
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var foo []int
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// no literal completions after selector
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foo = s.i //@complete(" //", litSliceField)
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}
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func _() {
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type myStruct struct{ i int } //@item(litStructType, "myStruct", "struct{...}", "struct")
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foo := func(s string, args ...myStruct) {}
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// Don't give literal slice candidate for variadic arg.
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foo("", myStruct) //@complete(")", litStructType)
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}
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