Function collectPackageConsts

scripts/metricsdocgen/scanner/scanner.go:232–268

collectPackageConsts collects exported string constants from a file into the global packageDeclarations map, keyed by package name.

(file *ast.File)

// collectPackageConsts collects exported string constants from a file into
// the global packageDeclarations map, keyed by package name.
func collectPackageConsts(file *ast.File) {
	pkgName := file.Name.Name

	if packageDeclarations[pkgName] == nil {
		packageDeclarations[pkgName] = make(map[string]string)
	}

	for _, decl := range file.Decls {
		genDecl, ok := decl.(*ast.GenDecl)
		if !ok || genDecl.Tok != token.CONST {
			continue
		}

		for _, spec := range genDecl.Specs {
			valueSpec, ok := spec.(*ast.ValueSpec)
			if !ok {
				continue
			}

			for i, name := range valueSpec.Names {
				if !ast.IsExported(name.Name) {
					continue
				}

				if i >= len(valueSpec.Values) {
					continue
				}

				if lit, ok := valueSpec.Values[i].(*ast.BasicLit); ok {
					if lit.Kind == token.STRING {
						packageDeclarations[pkgName][name.Name] = strings.Trim(lit.Value, `"`)
					}
				}
			}
		}
	}
}

// resolveStringExpr attempts to resolve an expression to a string value.
// Examples: