Method add

packages/tailwindcss/src/theme.ts:60–86

(key: string, value: string, options = ThemeOptions.NONE, src?: Declaration['src'])

  }

  add(key: string, value: string, options = ThemeOptions.NONE, src?: Declaration[class="st">'src']): void {
    if (key.endsWith(class="st">'-*')) {
      if (value !== class="st">'initial') {
        throw new Error(`Invalid theme value \`${value}\` for namespace \`${key}\``)
      }
      if (key === class="st">'--*') {
        this.values.clear()
      } else {
        this.clearNamespace(
          key.slice(0, -2),
          class="cm">// `--${key}-*: initial;` should clear _all_ theme values
          ThemeOptions.NONE,
        )
      }
    }

    if (options & ThemeOptions.DEFAULT) {
      let existing = this.values.get(key)
      if (existing && !(existing.options & ThemeOptions.DEFAULT)) return
    }

    if (value === class="st">'initial') {
      this.values.delete(key)
    } else {
      this.values.set(key, { value, options, src })
    }
  }

  keysInNamespaces(themeKeys: Iterable<ThemeKey>): string[] {
    let keys: string[] = []