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-rw-r--r--src/eval/methods.rs373
1 files changed, 0 insertions, 373 deletions
diff --git a/src/eval/methods.rs b/src/eval/methods.rs
deleted file mode 100644
index 62ac4095..00000000
--- a/src/eval/methods.rs
+++ /dev/null
@@ -1,373 +0,0 @@
-//! Methods on values.
-
-use ecow::EcoString;
-
-use super::{Args, IntoValue, Str, Value, Vm};
-use crate::diag::{At, SourceResult};
-use crate::eval::Datetime;
-use crate::model::{Location, Selector};
-use crate::syntax::Span;
-
-/// Call a method on a value.
-pub fn call(
- vm: &mut Vm,
- value: Value,
- method: &str,
- mut args: Args,
- span: Span,
-) -> SourceResult<Value> {
- let name = value.type_name();
- let missing = || Err(missing_method(name, method)).at(span);
-
- let output = match value {
- Value::Color(color) => match method {
- "lighten" => color.lighten(args.expect("amount")?).into_value(),
- "darken" => color.darken(args.expect("amount")?).into_value(),
- "negate" => color.negate().into_value(),
- _ => return missing(),
- },
-
- Value::Str(string) => match method {
- "len" => string.len().into_value(),
- "first" => string.first().at(span)?.into_value(),
- "last" => string.last().at(span)?.into_value(),
- "at" => {
- let index = args.expect("index")?;
- let default = args.named::<EcoString>("default")?;
- string.at(index, default.as_deref()).at(span)?.into_value()
- }
- "slice" => {
- let start = args.expect("start")?;
- let mut end = args.eat()?;
- if end.is_none() {
- end = args.named("count")?.map(|c: i64| start + c);
- }
- string.slice(start, end).at(span)?.into_value()
- }
- "clusters" => string.clusters().into_value(),
- "codepoints" => string.codepoints().into_value(),
- "contains" => string.contains(args.expect("pattern")?).into_value(),
- "starts-with" => string.starts_with(args.expect("pattern")?).into_value(),
- "ends-with" => string.ends_with(args.expect("pattern")?).into_value(),
- "find" => string.find(args.expect("pattern")?).into_value(),
- "position" => string.position(args.expect("pattern")?).into_value(),
- "match" => string.match_(args.expect("pattern")?).into_value(),
- "matches" => string.matches(args.expect("pattern")?).into_value(),
- "replace" => {
- let pattern = args.expect("pattern")?;
- let with = args.expect("string or function")?;
- let count = args.named("count")?;
- string.replace(vm, pattern, with, count)?.into_value()
- }
- "trim" => {
- let pattern = args.eat()?;
- let at = args.named("at")?;
- let repeat = args.named("repeat")?.unwrap_or(true);
- string.trim(pattern, at, repeat).into_value()
- }
- "split" => string.split(args.eat()?).into_value(),
- _ => return missing(),
- },
-
- Value::Content(content) => match method {
- "func" => content.func().into_value(),
- "has" => content.has(&args.expect::<EcoString>("field")?).into_value(),
- "at" => content
- .at(&args.expect::<EcoString>("field")?, args.named("default")?)
- .at(span)?,
- "fields" => content.dict().into_value(),
- "location" => content
- .location()
- .ok_or("this method can only be called on content returned by query(..)")
- .at(span)?
- .into_value(),
- _ => return missing(),
- },
-
- Value::Array(array) => match method {
- "len" => array.len().into_value(),
- "first" => array.first().at(span)?.clone(),
- "last" => array.last().at(span)?.clone(),
- "at" => array
- .at(args.expect("index")?, args.named("default")?.as_ref())
- .at(span)?
- .clone(),
- "slice" => {
- let start = args.expect("start")?;
- let mut end = args.eat()?;
- if end.is_none() {
- end = args.named("count")?.map(|c: i64| start + c);
- }
- array.slice(start, end).at(span)?.into_value()
- }
- "contains" => array.contains(&args.expect("value")?).into_value(),
- "find" => array.find(vm, args.expect("function")?)?.into_value(),
- "position" => array.position(vm, args.expect("function")?)?.into_value(),
- "filter" => array.filter(vm, args.expect("function")?)?.into_value(),
- "map" => array.map(vm, args.expect("function")?)?.into_value(),
- "fold" => {
- array.fold(vm, args.expect("initial value")?, args.expect("function")?)?
- }
- "sum" => array.sum(args.named("default")?, span)?,
- "product" => array.product(args.named("default")?, span)?,
- "any" => array.any(vm, args.expect("function")?)?.into_value(),
- "all" => array.all(vm, args.expect("function")?)?.into_value(),
- "flatten" => array.flatten().into_value(),
- "rev" => array.rev().into_value(),
- "split" => array.split(args.expect("separator")?).into_value(),
- "join" => {
- let sep = args.eat()?;
- let last = args.named("last")?;
- array.join(sep, last).at(span)?
- }
- "sorted" => array.sorted(vm, span, args.named("key")?)?.into_value(),
- "zip" => array.zip(args.expect("other")?).into_value(),
- "enumerate" => array.enumerate().into_value(),
- _ => return missing(),
- },
-
- Value::Dict(dict) => match method {
- "len" => dict.len().into_value(),
- "at" => dict
- .at(&args.expect::<Str>("key")?, args.named("default")?.as_ref())
- .at(span)?
- .clone(),
- "keys" => dict.keys().into_value(),
- "values" => dict.values().into_value(),
- "pairs" => dict.pairs().into_value(),
- _ => return missing(),
- },
-
- Value::Func(func) => match method {
- "with" => func.with(args.take()).into_value(),
- "where" => {
- let fields = args.to_named();
- args.items.retain(|arg| arg.name.is_none());
- func.element()
- .ok_or("`where()` can only be called on element functions")
- .at(span)?
- .where_(fields)
- .into_value()
- }
- _ => return missing(),
- },
-
- Value::Args(args) => match method {
- "pos" => args.to_pos().into_value(),
- "named" => args.to_named().into_value(),
- _ => return missing(),
- },
-
- Value::Dyn(dynamic) => {
- if let Some(location) = dynamic.downcast::<Location>() {
- match method {
- "page" => vm.vt.introspector.page(*location).into_value(),
- "position" => vm.vt.introspector.position(*location).into_value(),
- "page-numbering" => vm.vt.introspector.page_numbering(*location),
- _ => return missing(),
- }
- } else if let Some(selector) = dynamic.downcast::<Selector>() {
- match method {
- "or" => selector.clone().or(args.all::<Selector>()?).into_value(),
- "and" => selector.clone().and(args.all::<Selector>()?).into_value(),
- "before" => {
- let location = args.expect::<Selector>("selector")?;
- let inclusive =
- args.named_or_find::<bool>("inclusive")?.unwrap_or(true);
- selector.clone().before(location, inclusive).into_value()
- }
- "after" => {
- let location = args.expect::<Selector>("selector")?;
- let inclusive =
- args.named_or_find::<bool>("inclusive")?.unwrap_or(true);
- selector.clone().after(location, inclusive).into_value()
- }
- _ => return missing(),
- }
- } else if let Some(&datetime) = dynamic.downcast::<Datetime>() {
- match method {
- "display" => {
- datetime.display(args.eat()?).at(args.span)?.into_value()
- }
- "year" => datetime.year().into_value(),
- "month" => datetime.month().into_value(),
- "weekday" => datetime.weekday().into_value(),
- "day" => datetime.day().into_value(),
- "hour" => datetime.hour().into_value(),
- "minute" => datetime.minute().into_value(),
- "second" => datetime.second().into_value(),
- _ => return missing(),
- }
- } else {
- return (vm.items.library_method)(vm, &dynamic, method, args, span);
- }
- }
-
- _ => return missing(),
- };
-
- args.finish()?;
- Ok(output)
-}
-
-/// Call a mutating method on a value.
-pub fn call_mut(
- value: &mut Value,
- method: &str,
- mut args: Args,
- span: Span,
-) -> SourceResult<Value> {
- let name = value.type_name();
- let missing = || Err(missing_method(name, method)).at(span);
- let mut output = Value::None;
-
- match value {
- Value::Array(array) => match method {
- "push" => array.push(args.expect("value")?),
- "pop" => output = array.pop().at(span)?,
- "insert" => {
- array.insert(args.expect("index")?, args.expect("value")?).at(span)?
- }
- "remove" => output = array.remove(args.expect("index")?).at(span)?,
- _ => return missing(),
- },
-
- Value::Dict(dict) => match method {
- "insert" => dict.insert(args.expect::<Str>("key")?, args.expect("value")?),
- "remove" => {
- output = dict.remove(&args.expect::<EcoString>("key")?).at(span)?
- }
- _ => return missing(),
- },
-
- _ => return missing(),
- }
-
- args.finish()?;
- Ok(output)
-}
-
-/// Call an accessor method on a value.
-pub fn call_access<'a>(
- value: &'a mut Value,
- method: &str,
- mut args: Args,
- span: Span,
-) -> SourceResult<&'a mut Value> {
- let name = value.type_name();
- let missing = || Err(missing_method(name, method)).at(span);
-
- let slot = match value {
- Value::Array(array) => match method {
- "first" => array.first_mut().at(span)?,
- "last" => array.last_mut().at(span)?,
- "at" => array.at_mut(args.expect("index")?).at(span)?,
- _ => return missing(),
- },
- Value::Dict(dict) => match method {
- "at" => dict.at_mut(&args.expect::<Str>("key")?).at(span)?,
- _ => return missing(),
- },
- _ => return missing(),
- };
-
- args.finish()?;
- Ok(slot)
-}
-
-/// Whether a specific method is mutating.
-pub fn is_mutating(method: &str) -> bool {
- matches!(method, "push" | "pop" | "insert" | "remove")
-}
-
-/// Whether a specific method is an accessor.
-pub fn is_accessor(method: &str) -> bool {
- matches!(method, "first" | "last" | "at")
-}
-
-/// The missing method error message.
-#[cold]
-fn missing_method(type_name: &str, method: &str) -> String {
- format!("type {type_name} has no method `{method}`")
-}
-
-/// List the available methods for a type and whether they take arguments.
-pub fn methods_on(type_name: &str) -> &[(&'static str, bool)] {
- match type_name {
- "color" => &[("lighten", true), ("darken", true), ("negate", false)],
- "string" => &[
- ("len", false),
- ("at", true),
- ("clusters", false),
- ("codepoints", false),
- ("contains", true),
- ("ends-with", true),
- ("find", true),
- ("first", false),
- ("last", false),
- ("match", true),
- ("matches", true),
- ("position", true),
- ("replace", true),
- ("slice", true),
- ("split", true),
- ("starts-with", true),
- ("trim", true),
- ],
- "content" => &[
- ("func", false),
- ("has", true),
- ("at", true),
- ("fields", false),
- ("location", false),
- ],
- "array" => &[
- ("all", true),
- ("any", true),
- ("at", true),
- ("contains", true),
- ("filter", true),
- ("find", true),
- ("first", false),
- ("flatten", false),
- ("fold", true),
- ("insert", true),
- ("split", true),
- ("join", true),
- ("last", false),
- ("len", false),
- ("map", true),
- ("pop", false),
- ("position", true),
- ("push", true),
- ("remove", true),
- ("rev", false),
- ("slice", true),
- ("sorted", false),
- ("enumerate", false),
- ("zip", true),
- ],
- "dictionary" => &[
- ("at", true),
- ("insert", true),
- ("keys", false),
- ("len", false),
- ("pairs", false),
- ("remove", true),
- ("values", false),
- ],
- "function" => &[("where", true), ("with", true)],
- "arguments" => &[("named", false), ("pos", false)],
- "location" => &[("page", false), ("position", false), ("page-numbering", false)],
- "selector" => &[("or", true), ("and", true), ("before", true), ("after", true)],
- "counter" => &[
- ("display", true),
- ("at", true),
- ("final", true),
- ("step", true),
- ("update", true),
- ],
- "state" => &[("display", true), ("at", true), ("final", true), ("update", true)],
- _ => &[],
- }
-}
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