Enum fluent_syntax::ast::InlineExpression[−][src]

pub enum InlineExpression<S> {
    StringLiteral {
        value: S,
    },
    NumberLiteral {
        value: S,
    },
    FunctionReference {
        id: Identifier<S>,
        arguments: CallArguments<S>,
    },
    MessageReference {
        id: Identifier<S>,
        attribute: Option<Identifier<S>>,
    },
    TermReference {
        id: Identifier<S>,
        attribute: Option<Identifier<S>>,
        arguments: Option<CallArguments<S>>,
    },
    VariableReference {
        id: Identifier<S>,
    },
    Placeable {
        expression: Box<Expression<S>>,
    },
}

A subset of expressions which can be used as Placeable, selector, or in CallArguments.

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { $emailCount }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::VariableReference {
                                        id: ast::Identifier {
                                            name: "emailCount"
                                        },
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Variants

StringLiteral

Single line string literal enclosed in ".

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { "this is a literal" }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::StringLiteral {
                                        value: "this is a literal",
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Fields of StringLiteral

value: S
NumberLiteral

A number literal.

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { -0.5 }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::NumberLiteral {
                                        value: "-0.5",
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Fields of NumberLiteral

value: S
FunctionReference

A function reference.

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { FUNC() }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::FunctionReference {
                                        id: ast::Identifier {
                                            name: "FUNC"
                                        },
                                        arguments: ast::CallArguments::default(),
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Fields of FunctionReference

id: Identifier<S>arguments: CallArguments<S>
MessageReference

A reference to another message.

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { key2 }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::MessageReference {
                                        id: ast::Identifier {
                                            name: "key2"
                                        },
                                        attribute: None,
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Fields of MessageReference

id: Identifier<S>attribute: Option<Identifier<S>>
TermReference

A reference to a term.

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { -brand-name }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::TermReference {
                                        id: ast::Identifier {
                                            name: "brand-name"
                                        },
                                        attribute: None,
                                        arguments: None,
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Fields of TermReference

id: Identifier<S>attribute: Option<Identifier<S>>arguments: Option<CallArguments<S>>
VariableReference

A reference to a variable.

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { $var1 }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::VariableReference {
                                        id: ast::Identifier {
                                            name: "var1"
                                        },
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Fields of VariableReference

id: Identifier<S>
Placeable

A placeable which may contain another expression.

Example

use fluent_syntax::parser;
use fluent_syntax::ast;

let ftl = r#"

key = { { "placeable" } }

"#;

let resource = parser::parse(ftl)
    .expect("Failed to parse an FTL resource.");

assert_eq!(
    resource,
    ast::Resource {
        body: vec![
            ast::Entry::Message(
                ast::Message {
                    id: ast::Identifier {
                        name: "key"
                    },
                    value: Some(ast::Pattern {
                        elements: vec![
                            ast::PatternElement::Placeable {
                                expression: ast::Expression::Inline(
                                    ast::InlineExpression::Placeable {
                                        expression: Box::new(
                                            ast::Expression::Inline(
                                                ast::InlineExpression::StringLiteral {
                                                    value: "placeable"
                                                }
                                            )
                                        )
                                    }
                                )
                            },
                        ]
                    }),
                    attributes: vec![],
                    comment: None,
                }
            )
        ]
    }
);

Fields of Placeable

expression: Box<Expression<S>>

Trait Implementations

impl<S: Clone> Clone for InlineExpression<S>[src]

impl<S: Debug> Debug for InlineExpression<S>[src]

impl<S: PartialEq> PartialEq<InlineExpression<S>> for InlineExpression<S>[src]

impl<S> StructuralPartialEq for InlineExpression<S>[src]

Auto Trait Implementations

impl<S> RefUnwindSafe for InlineExpression<S> where
    S: RefUnwindSafe, [src]

impl<S> Send for InlineExpression<S> where
    S: Send, [src]

impl<S> Sync for InlineExpression<S> where
    S: Sync, [src]

impl<S> Unpin for InlineExpression<S> where
    S: Unpin, [src]

impl<S> UnwindSafe for InlineExpression<S> where
    S: UnwindSafe, [src]

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.