9b23badedd
- Lazily produce conversion failure diagnostics. This lowers the allocation volume and cuts down on execution time by avoiding the conversion of source and dest types to strings. - Add a fast path for union conversions that checks if the source type is identical to any of the union's element types. Type equality checks are generally much faster than type conversion checks. These changes lead to a significant speedup in codegen time in azure-native.
73 lines
2 KiB
Go
73 lines
2 KiB
Go
// Copyright 2016-2020, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package model
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import (
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"github.com/hashicorp/hcl/v2"
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"github.com/hashicorp/hcl/v2/hclsyntax"
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"github.com/pulumi/pulumi/pkg/v3/codegen/hcl2/syntax"
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)
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type noneType int
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func (noneType) SyntaxNode() hclsyntax.Node {
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return syntax.None
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}
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func (noneType) Traverse(traverser hcl.Traverser) (Traversable, hcl.Diagnostics) {
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return NoneType, hcl.Diagnostics{unsupportedReceiverType(NoneType, traverser.SourceRange())}
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}
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func (n noneType) Equals(other Type) bool {
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return n.equals(other, nil)
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}
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func (noneType) equals(other Type, seen map[Type]struct{}) bool {
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return other == NoneType
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}
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func (noneType) AssignableFrom(src Type) bool {
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return assignableFrom(NoneType, src, func() bool {
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return false
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})
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}
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func (noneType) ConversionFrom(src Type) ConversionKind {
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kind, _ := NoneType.conversionFrom(src, false, nil)
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return kind
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}
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func (noneType) conversionFrom(src Type, unifying bool, seen map[Type]struct{}) (ConversionKind, lazyDiagnostics) {
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return conversionFrom(NoneType, src, unifying, seen, func() (ConversionKind, lazyDiagnostics) {
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return NoConversion, nil
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})
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}
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func (noneType) String() string {
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return "none"
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}
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func (noneType) string(_ map[Type]struct{}) string {
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return "none"
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}
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func (noneType) unify(other Type) (Type, ConversionKind) {
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return unify(NoneType, other, func() (Type, ConversionKind) {
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return NoneType, other.ConversionFrom(NoneType)
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})
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}
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func (noneType) isType() {}
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