Allow creating aliases for builtin types, using typename. (#133)
## Summary:
This lets you write code like:
```
query x {
# @genqlient(typename: "MyString")
someStringField
}
```
and genqlient will do
```
typename MyString string
type x struct {
someStringField MyString
}
```
This was not difficult to implement, though it required introducing a
new identifier type. The main difficulty I had was weird test
failures, that it turns out was due to the tests putting a bunch of
fields on the same line, so that the genqlient directive on the
previous line applied to all of them, accidentally. This became a
problem when `typename` suddenly started being respected for builtin
types! I fixed it by just spreading out the queries a bit.
Fixes #130
## Test plan:
make check
Author: csilvers
Reviewers: dnerdy, StevenACoffman, benjaminjkraft
Required Reviewers:
Approved By: StevenACoffman
Checks: ✅ Test (1.17), ✅ Test (1.16), ✅ Test (1.15), ✅ Test (1.14), ✅ Lint, ✅ Test (1.17), ✅ Test (1.16), ✅ Test (1.15), ✅ Test (1.14), ✅ Lint
Pull Request URL: https://github.com/Khan/genqlient/pull/133
This commit is contained in:
Craig Silverstein
+47
-28
@@ -65,6 +65,14 @@ type (
|
||||
GraphQLName string
|
||||
Marshaler, Unmarshaler string
|
||||
}
|
||||
// goTypenameForBuiltinType represents a builtin type that was
|
||||
// given a different name due to a `typename` directive. We
|
||||
// create a type like `type MyString string` for it.
|
||||
goTypenameForBuiltinType struct {
|
||||
GoTypeName string
|
||||
GoBuiltinName string
|
||||
GraphQLName string
|
||||
}
|
||||
// goSliceType represents the Go type []Elem, used to represent GraphQL
|
||||
// list types.
|
||||
goSliceType struct{ Elem goType }
|
||||
@@ -75,21 +83,29 @@ type (
|
||||
)
|
||||
|
||||
// Opaque types are defined by the user; pointers and slices need no definition
|
||||
func (typ *goOpaqueType) WriteDefinition(io.Writer, *generator) error { return nil }
|
||||
func (typ *goOpaqueType) WriteDefinition(io.Writer, *generator) error { return nil }
|
||||
|
||||
func (typ *goTypenameForBuiltinType) WriteDefinition(w io.Writer, g *generator) error {
|
||||
fmt.Fprintf(w, "type %s %s", typ.GoTypeName, typ.GoBuiltinName)
|
||||
return nil
|
||||
}
|
||||
func (typ *goSliceType) WriteDefinition(io.Writer, *generator) error { return nil }
|
||||
func (typ *goPointerType) WriteDefinition(io.Writer, *generator) error { return nil }
|
||||
|
||||
func (typ *goOpaqueType) Reference() string { return typ.GoRef }
|
||||
func (typ *goSliceType) Reference() string { return "[]" + typ.Elem.Reference() }
|
||||
func (typ *goPointerType) Reference() string { return "*" + typ.Elem.Reference() }
|
||||
func (typ *goOpaqueType) Reference() string { return typ.GoRef }
|
||||
func (typ *goTypenameForBuiltinType) Reference() string { return typ.GoTypeName }
|
||||
func (typ *goSliceType) Reference() string { return "[]" + typ.Elem.Reference() }
|
||||
func (typ *goPointerType) Reference() string { return "*" + typ.Elem.Reference() }
|
||||
|
||||
func (typ *goOpaqueType) SelectionSet() ast.SelectionSet { return nil }
|
||||
func (typ *goSliceType) SelectionSet() ast.SelectionSet { return typ.Elem.SelectionSet() }
|
||||
func (typ *goPointerType) SelectionSet() ast.SelectionSet { return typ.Elem.SelectionSet() }
|
||||
func (typ *goOpaqueType) SelectionSet() ast.SelectionSet { return nil }
|
||||
func (typ *goTypenameForBuiltinType) SelectionSet() ast.SelectionSet { return nil }
|
||||
func (typ *goSliceType) SelectionSet() ast.SelectionSet { return typ.Elem.SelectionSet() }
|
||||
func (typ *goPointerType) SelectionSet() ast.SelectionSet { return typ.Elem.SelectionSet() }
|
||||
|
||||
func (typ *goOpaqueType) GraphQLTypeName() string { return typ.GraphQLName }
|
||||
func (typ *goSliceType) GraphQLTypeName() string { return typ.Elem.GraphQLTypeName() }
|
||||
func (typ *goPointerType) GraphQLTypeName() string { return typ.Elem.GraphQLTypeName() }
|
||||
func (typ *goOpaqueType) GraphQLTypeName() string { return typ.GraphQLName }
|
||||
func (typ *goTypenameForBuiltinType) GraphQLTypeName() string { return typ.GraphQLName }
|
||||
func (typ *goSliceType) GraphQLTypeName() string { return typ.Elem.GraphQLTypeName() }
|
||||
func (typ *goPointerType) GraphQLTypeName() string { return typ.Elem.GraphQLTypeName() }
|
||||
|
||||
// goEnumType represents a Go named-string type used to represent a GraphQL
|
||||
// enum. In this case, we generate both the type (`type T string`) and also a
|
||||
@@ -502,26 +518,29 @@ func (typ *goInterfaceType) Reference() string { return typ.GoName
|
||||
func (typ *goInterfaceType) SelectionSet() ast.SelectionSet { return typ.Selection }
|
||||
func (typ *goInterfaceType) GraphQLTypeName() string { return typ.GraphQLName }
|
||||
|
||||
func (typ *goOpaqueType) Unwrap() goType { return typ }
|
||||
func (typ *goSliceType) Unwrap() goType { return typ.Elem.Unwrap() }
|
||||
func (typ *goPointerType) Unwrap() goType { return typ.Elem.Unwrap() }
|
||||
func (typ *goEnumType) Unwrap() goType { return typ }
|
||||
func (typ *goStructType) Unwrap() goType { return typ }
|
||||
func (typ *goInterfaceType) Unwrap() goType { return typ }
|
||||
func (typ *goOpaqueType) Unwrap() goType { return typ }
|
||||
func (typ *goTypenameForBuiltinType) Unwrap() goType { return typ }
|
||||
func (typ *goSliceType) Unwrap() goType { return typ.Elem.Unwrap() }
|
||||
func (typ *goPointerType) Unwrap() goType { return typ.Elem.Unwrap() }
|
||||
func (typ *goEnumType) Unwrap() goType { return typ }
|
||||
func (typ *goStructType) Unwrap() goType { return typ }
|
||||
func (typ *goInterfaceType) Unwrap() goType { return typ }
|
||||
|
||||
func (typ *goOpaqueType) SliceDepth() int { return 0 }
|
||||
func (typ *goSliceType) SliceDepth() int { return typ.Elem.SliceDepth() + 1 }
|
||||
func (typ *goPointerType) SliceDepth() int { return 0 }
|
||||
func (typ *goEnumType) SliceDepth() int { return 0 }
|
||||
func (typ *goStructType) SliceDepth() int { return 0 }
|
||||
func (typ *goInterfaceType) SliceDepth() int { return 0 }
|
||||
func (typ *goOpaqueType) SliceDepth() int { return 0 }
|
||||
func (typ *goTypenameForBuiltinType) SliceDepth() int { return 0 }
|
||||
func (typ *goSliceType) SliceDepth() int { return typ.Elem.SliceDepth() + 1 }
|
||||
func (typ *goPointerType) SliceDepth() int { return 0 }
|
||||
func (typ *goEnumType) SliceDepth() int { return 0 }
|
||||
func (typ *goStructType) SliceDepth() int { return 0 }
|
||||
func (typ *goInterfaceType) SliceDepth() int { return 0 }
|
||||
|
||||
func (typ *goOpaqueType) IsPointer() bool { return false }
|
||||
func (typ *goSliceType) IsPointer() bool { return typ.Elem.IsPointer() }
|
||||
func (typ *goPointerType) IsPointer() bool { return true }
|
||||
func (typ *goEnumType) IsPointer() bool { return false }
|
||||
func (typ *goStructType) IsPointer() bool { return false }
|
||||
func (typ *goInterfaceType) IsPointer() bool { return false }
|
||||
func (typ *goOpaqueType) IsPointer() bool { return false }
|
||||
func (typ *goTypenameForBuiltinType) IsPointer() bool { return false }
|
||||
func (typ *goSliceType) IsPointer() bool { return typ.Elem.IsPointer() }
|
||||
func (typ *goPointerType) IsPointer() bool { return true }
|
||||
func (typ *goEnumType) IsPointer() bool { return false }
|
||||
func (typ *goStructType) IsPointer() bool { return false }
|
||||
func (typ *goInterfaceType) IsPointer() bool { return false }
|
||||
|
||||
func writeDescription(w io.Writer, desc string) {
|
||||
if desc != "" {
|
||||
|
||||
Reference in New Issue
Block a user