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d31a08c2ed
We now understand what "kind" of type is expected when using various
builtins. For example, when completing "close(<>)" we prefer channels,
and when completing "delete(<>)" we prefer maps.
I also added some code to infer the expected type for the second
argument to "delete()" and for the args to "copy()":
delete(map[someType]int{}, <>) // expect "someType"
copy([]int{}, <>) // expect "[]int"
copy(<>, []int{}) // expect "[]int"
And I marked "new()" as expected a type name, and it infers the type
name properly:
var _ *int = new(<>) // expected type at "<>" is "int"
Fixes golang/go#36326.
Change-Id: I4295c8753f8341d47010a0553fd2d0c2586f2efa
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212957
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
38 lines
1.8 KiB
Go
38 lines
1.8 KiB
Go
package builtins
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func _() {
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var (
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slice_ []int //@item(builtinSlice, "slice_", "[]int", "var")
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map_ map[string]int //@item(builtinMap, "map_", "map[string]int", "var")
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string_ string //@item(builtinString, "string_", "string", "var")
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array_ [0]int //@item(builtinArray, "array_", "[0]int", "var")
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arrayPtr_ *[0]int //@item(builtinArrayPtr, "arrayPtr_", "*[0]int", "var")
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chan_ chan int //@item(builtinChan, "chan_", "chan int", "var")
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ptr_ *int //@item(builtinPtr, "ptr_", "*int", "var")
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int_ int //@item(builtinInt, "int_", "int", "var")
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)
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close() //@rank(")", builtinChan, builtinSlice)
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append() //@rank(")", builtinSlice, builtinChan)
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copy() //@rank(")", builtinSlice, builtinChan)
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copy(slice_, s) //@rank(")", builtinSlice, builtinString)
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copy(s, slice_) //@rank(",", builtinSlice, builtinString)
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delete() //@rank(")", builtinMap, builtinChan)
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delete(map_, s) //@rank(")", builtinString, builtinSlice)
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len() //@rank(")", builtinSlice, builtinInt),rank(")", builtinMap, builtinInt),rank(")", builtinString, builtinInt),rank(")", builtinArray, builtinInt),rank(")", builtinArrayPtr, builtinPtr),rank(")", builtinChan, builtinInt)
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cap() //@rank(")", builtinSlice, builtinMap),rank(")", builtinArray, builtinString),rank(")", builtinArrayPtr, builtinPtr),rank(")", builtinChan, builtinInt)
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make() //@rank(")", builtinMap, builtinInt),rank(")", builtinChan, builtinInt),rank(")", builtinSlice, builtinInt)
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var _ []int = make() //@rank(")", builtinSlice, builtinMap)
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type myStruct struct{} //@item(builtinStructType, "myStruct", "struct{...}", "struct")
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new() //@rank(")", builtinStructType, builtinInt)
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var _ *myStruct = new() //@rank(")", builtinStructType, int)
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}
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