forked from extern/nushell
46 lines
1.5 KiB
Rust
46 lines
1.5 KiB
Rust
use nu_source::{b, DebugDocBuilder, PrettyDebug};
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use serde::{Deserialize, Serialize};
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/// The syntactic shapes that values must match to be passed into a command. You can think of this as the type-checking that occurs when you call a function.
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#[derive(Debug, Copy, Clone, Serialize, Deserialize)]
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pub enum SyntaxShape {
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/// Any syntactic form is allowed
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Any,
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/// Strings and string-like bare words are allowed
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String,
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/// Values that can be the right hand side of a '.'
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Member,
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/// A dotted path to navigate the table
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ColumnPath,
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/// Only a numeric (integer or decimal) value is allowed
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Number,
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/// A range is allowed (eg, `1..3`)
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Range,
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/// Only an integer value is allowed
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Int,
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/// A filepath is allowed
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Path,
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/// A glob pattern is allowed, eg `foo*`
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Pattern,
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/// A block is allowed, eg `{start this thing}`
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Block,
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}
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impl PrettyDebug for SyntaxShape {
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/// Prepare SyntaxShape for pretty-printing
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fn pretty(&self) -> DebugDocBuilder {
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b::kind(match self {
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SyntaxShape::Any => "any shape",
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SyntaxShape::String => "string shape",
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SyntaxShape::Member => "member shape",
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SyntaxShape::ColumnPath => "column path shape",
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SyntaxShape::Number => "number shape",
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SyntaxShape::Range => "range shape",
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SyntaxShape::Int => "integer shape",
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SyntaxShape::Path => "file path shape",
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SyntaxShape::Pattern => "pattern shape",
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SyntaxShape::Block => "block shape",
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})
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}
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}
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