swc_ecma_minifier::option

Struct CompressOptions

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pub struct CompressOptions {
Show 55 fields
    pub arguments: bool,
    pub arrows: bool,
    pub bools: bool,
    pub bools_as_ints: bool,
    pub collapse_vars: bool,
    pub comparisons: bool,
    pub computed_props: bool,
    pub conditionals: bool,
    pub dead_code: bool,
    pub directives: bool,
    pub drop_console: bool,
    pub drop_debugger: bool,
    pub ecma: EsVersion,
    pub evaluate: bool,
    pub expr: bool,
    pub global_defs: AHashMap<Box<Expr>, Box<Expr>>,
    pub hoist_fns: bool,
    pub hoist_props: bool,
    pub hoist_vars: bool,
    pub ie8: bool,
    pub if_return: bool,
    pub inline: u8,
    pub join_vars: bool,
    pub keep_classnames: bool,
    pub keep_fargs: bool,
    pub keep_fnames: bool,
    pub keep_infinity: bool,
    pub loops: bool,
    pub module: bool,
    pub negate_iife: bool,
    pub passes: usize,
    pub props: bool,
    pub pure_getters: PureGetterOption,
    pub pure_funcs: Vec<Box<Expr>>,
    pub reduce_fns: bool,
    pub reduce_vars: bool,
    pub sequences: u8,
    pub side_effects: bool,
    pub switches: bool,
    pub top_retain: Vec<JsWord>,
    pub top_level: Option<TopLevelOptions>,
    pub typeofs: bool,
    pub unsafe_passes: bool,
    pub unsafe_arrows: bool,
    pub unsafe_comps: bool,
    pub unsafe_function: bool,
    pub unsafe_math: bool,
    pub unsafe_symbols: bool,
    pub unsafe_methods: bool,
    pub unsafe_proto: bool,
    pub unsafe_regexp: bool,
    pub unsafe_undefined: bool,
    pub unused: bool,
    pub const_to_let: bool,
    pub pristine_globals: bool,

}
Expand description

https://terser.org/docs/api-reference.html#compress-options

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§arguments: bool§arrows: bool§bools: bool§bools_as_ints: bool§collapse_vars: bool§comparisons: bool§computed_props: bool§conditionals: bool§dead_code: bool§directives: bool§drop_console: bool§drop_debugger: bool§ecma: EsVersion§evaluate: bool§expr: bool

Should we simplify expressions?

§global_defs: AHashMap<Box<Expr>, Box<Expr>>

All expressions should have dummy span. Use [swc_ecma_utils::drop_span] to remove spans.

§hoist_fns: bool§hoist_props: bool§hoist_vars: bool§ie8: bool

No effect.

§if_return: bool§inline: u8
  • 0: disabled inlining
  • 1: inline simple functions
  • 2: inline functions with arguments
  • 3: inline functions with arguments and variables
§join_vars: bool§keep_classnames: bool§keep_fargs: bool§keep_fnames: bool§keep_infinity: bool§loops: bool§module: bool§negate_iife: bool§passes: usize

If this value is zero, the minifier will repeat work until the ast node is settled.

§props: bool§pure_getters: PureGetterOption§pure_funcs: Vec<Box<Expr>>§reduce_fns: bool§reduce_vars: bool§sequences: u8§side_effects: bool§switches: bool§top_retain: Vec<JsWord>

Top level symbols to retain.

§top_level: Option<TopLevelOptions>§typeofs: bool§unsafe_passes: bool§unsafe_arrows: bool§unsafe_comps: bool§unsafe_function: bool§unsafe_math: bool§unsafe_symbols: bool§unsafe_methods: bool§unsafe_proto: bool§unsafe_regexp: bool§unsafe_undefined: bool§unused: bool§const_to_let: bool§pristine_globals: bool

If you modified globals, set this to false.

Defaults to true.

Trait Implementations§

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impl Clone for CompressOptions

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fn clone(&self) -> CompressOptions

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CompressOptions

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for CompressOptions

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for CompressOptions

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for CompressOptions

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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Causes self to use its Display implementation when Debug-formatted.
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Causes self to use its LowerExp implementation when Debug-formatted.
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Causes self to use its LowerHex implementation when Debug-formatted.
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Causes self to use its Octal implementation when Debug-formatted.
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