vendor tsgo

tools/tsgo/internal/ls/diagnostics.go

@@ -0,0 +1,58 @@
+package ls
+
+import (
+	"context"
+
+	"github.com/microsoft/typescript-go/internal/ast"
+	"github.com/microsoft/typescript-go/internal/compiler"
+	"github.com/microsoft/typescript-go/internal/ls/lsconv"
+	"github.com/microsoft/typescript-go/internal/lsp/lsproto"
+)
+
+// getAllDiagnostics collects all diagnostics for a file: syntactic, semantic,
+// suggestion, and (when declarations are emitted) declaration diagnostics.
+func getAllDiagnostics(ctx context.Context, program *compiler.Program, file *ast.SourceFile) []*ast.Diagnostic {
+	var diags []*ast.Diagnostic
+	diags = append(diags, program.GetSyntacticDiagnostics(ctx, file)...)
+	diags = append(diags, program.GetSemanticDiagnostics(ctx, file)...)
+	diags = append(diags, program.GetSuggestionDiagnostics(ctx, file)...)
+	if program.Options().GetEmitDeclarations() {
+		diags = append(diags, program.GetDeclarationDiagnostics(ctx, file)...)
+	}
+	return diags
+}
+
+func (l *LanguageService) ProvideDiagnostics(ctx context.Context, uri lsproto.DocumentUri) (lsproto.DocumentDiagnosticResponse, error) {
+	program, file := l.getProgramAndFile(uri)
+
+	if l.UserPreferences().EnableValidation.IsFalse() {
+		diagnostics := []*lsproto.Diagnostic{}
+		return lsproto.RelatedFullDocumentDiagnosticReportOrUnchangedDocumentDiagnosticReport{
+			FullDocumentDiagnosticReport: &lsproto.RelatedFullDocumentDiagnosticReport{
+				Items: diagnostics,
+			},
+		}, nil
+	}
+
+	diagnostics := getAllDiagnostics(ctx, program, file)
+
+	return lsproto.RelatedFullDocumentDiagnosticReportOrUnchangedDocumentDiagnosticReport{
+		FullDocumentDiagnosticReport: &lsproto.RelatedFullDocumentDiagnosticReport{
+			Items: l.toLSPDiagnostics(ctx, diagnostics),
+		},
+	}, nil
+}
+
+func (l *LanguageService) toLSPDiagnostics(ctx context.Context, diagnostics ...[]*ast.Diagnostic) []*lsproto.Diagnostic {
+	size := 0
+	for _, diagSlice := range diagnostics {
+		size += len(diagSlice)
+	}
+	lspDiagnostics := make([]*lsproto.Diagnostic, 0, size)
+	for _, diagSlice := range diagnostics {
+		for _, diag := range diagSlice {
+			lspDiagnostics = append(lspDiagnostics, lsconv.DiagnosticToLSPPull(ctx, l.converters, diag, l.UserPreferences().ReportStyleChecksAsWarnings.IsTrue()))
+		}
+	}
+	return lspDiagnostics
+}