vendor tsgo

tools/tsgo/internal/tsoptions/namemap.go

@@ -0,0 +1,58 @@
+package tsoptions
+
+import (
+	"strings"
+
+	"github.com/microsoft/typescript-go/internal/collections"
+)
+
+var (
+	CompilerNameMap = GetNameMapFromList(OptionsDeclarations)
+	BuildNameMap    = GetNameMapFromList(BuildOpts)
+	WatchNameMap    = GetNameMapFromList(OptionsForWatch)
+)
+
+func GetNameMapFromList(optDecls []*CommandLineOption) *NameMap {
+	optionsNames := collections.NewOrderedMapWithSizeHint[string, *CommandLineOption](len(optDecls))
+	shortOptionNames := map[string]string{}
+	for _, option := range optDecls {
+		optionsNames.Set(strings.ToLower(option.Name), option)
+		if option.ShortName != "" {
+			shortOptionNames[option.ShortName] = option.Name
+		}
+	}
+	return &NameMap{
+		optionsNames:     optionsNames,
+		shortOptionNames: shortOptionNames,
+	}
+}
+
+type NameMap struct {
+	optionsNames     *collections.OrderedMap[string, *CommandLineOption]
+	shortOptionNames map[string]string
+}
+
+func (nm *NameMap) Get(name string) *CommandLineOption {
+	return nm.optionsNames.GetOrZero(strings.ToLower(name))
+}
+
+func (nm *NameMap) GetFromShort(shortName string) *CommandLineOption {
+	// returns option only if shortName is a valid short option
+	name, ok := nm.shortOptionNames[shortName]
+	if !ok {
+		return nil
+	}
+	return nm.Get(name)
+}
+
+func (nm *NameMap) GetOptionDeclarationFromName(optionName string, allowShort bool) *CommandLineOption {
+	optionName = strings.ToLower(optionName)
+	// Try to translate short option names to their full equivalents.
+	if allowShort {
+		short := nm.shortOptionNames[optionName]
+		if short != "" {
+			optionName = short
+		}
+	}
+	return nm.Get(optionName)
+}