Method collectDiagnostics

internal/compiler/program.go:539–548

collectDiagnostics collects diagnostics from a single file or all files. If sourceFile is non-nil, returns diagnostics for just that file. If sourceFile is nil, returns diagnostics for all files in the program.

(ctx context.Context, sourceFile *ast.SourceFile, concurrent bool, collect func(context.Context, *ast.SourceFile) []*ast.Diagnostic)

// If sourceFile is non-nil, returns diagnostics for just that file.
// If sourceFile is nil, returns diagnostics for all files in the program.
func (p *Program) collectDiagnostics(ctx context.Context, sourceFile *ast.SourceFile, concurrent bool, collect func(context.Context, *ast.SourceFile) []*ast.Diagnostic) []*ast.Diagnostic {
	var result []*ast.Diagnostic
	if sourceFile != nil {
		result = collect(ctx, sourceFile)
	} else {
		diagnostics := p.collectDiagnosticsFromFiles(ctx, p.files, concurrent, collect)
		result = slices.Concat(diagnostics...)
	}
	return SortAndDeduplicateDiagnostics(result)
}

func (p *Program) collectDiagnosticsFromFiles(ctx context.Context, sourceFiles []*ast.SourceFile, concurrent bool, collect func(context.Context, *ast.SourceFile) []*ast.Diagnostic) [][]*ast.Diagnostic {
	diagnostics := make([][]*ast.Diagnostic, len(sourceFiles))