Trait swc_ecma_utils::ExprExt

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pub trait ExprExt {
Show 18 methods    // Required method
    fn as_expr(&self) -> &Expr;

    // Provided methods
    fn is_immutable_value(&self) -> bool { ... }
    fn is_number(&self) -> bool { ... }
    fn is_str(&self) -> bool { ... }
    fn is_array_lit(&self) -> bool { ... }
    fn is_nan(&self) -> bool { ... }
    fn is_undefined(&self, ctx: &ExprCtx) -> bool { ... }
    fn is_void(&self) -> bool { ... }
    fn is_global_ref_to(&self, ctx: &ExprCtx, id: &str) -> bool { ... }
    fn is_one_of_global_ref_to(&self, ctx: &ExprCtx, ids: &[&str]) -> bool { ... }
    fn as_pure_bool(&self, ctx: &ExprCtx) -> BoolValue { ... }
    fn cast_to_bool(&self, ctx: &ExprCtx) -> (Purity, BoolValue) { ... }
    fn cast_to_number(&self, ctx: &ExprCtx) -> (Purity, Value<f64>) { ... }
    fn as_pure_number(&self, ctx: &ExprCtx) -> Value<f64> { ... }
    fn as_pure_string(&self, ctx: &ExprCtx) -> Value<Cow<'_, str>> { ... }
    fn get_type(&self) -> Value<Type> { ... }
    fn is_pure_callee(&self, ctx: &ExprCtx) -> bool { ... }
    fn may_have_side_effects(&self, ctx: &ExprCtx) -> bool { ... }
}

Expand description

Extension methods for [Expr].

Required Methods§

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fn as_expr(&self) -> &Expr

Provided Methods§

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fn is_immutable_value(&self) -> bool

Returns true if this is an immutable value.

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fn is_nan(&self) -> bool

Checks if self is NaN.

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fn is_undefined(&self, ctx: &ExprCtx) -> bool

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fn is_void(&self) -> bool

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fn is_global_ref_to(&self, ctx: &ExprCtx, id: &str) -> bool

Returns true if id references a global object.

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fn is_one_of_global_ref_to(&self, ctx: &ExprCtx, ids: &[&str]) -> bool

Returns true if id references a global object.

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fn as_pure_bool(&self, ctx: &ExprCtx) -> BoolValue

Get bool value of self if it does not have any side effects.

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fn cast_to_bool(&self, ctx: &ExprCtx) -> (Purity, BoolValue)

This method emulates the Boolean() JavaScript cast function. Note: unlike getPureBooleanValue this function does not return None for expressions with side-effects.

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