Struct Recipe

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pub struct Recipe(/* private fields */);

Expand description

An AST node for $ast

Implementations§

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impl Recipe

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pub fn line(&self) -> usize

Get the line number (0-indexed) where this node starts.

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pub fn column(&self) -> usize

Get the column number (0-indexed, in bytes) where this node starts.

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pub fn line_col(&self) -> (usize, usize)

Get both line and column (0-indexed) where this node starts. Returns (line, column) where column is measured in bytes from the start of the line.

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impl Recipe

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pub fn text(&self) -> String

Get the text content of this recipe line (the command to execute)

For single-line recipes, this returns the command text excluding the leading tab and trailing newline.

For multi-line recipes (with backslash continuations), this returns the full text including the internal newlines and continuation-line indentation, but still excluding the leading tab of the first line and the final newline. This preserves the exact content needed for a lossless round-trip.

For comment-only lines, this returns an empty string.

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pub fn indent(&self) -> Option<String>

Get the indentation string of this recipe line.

Returns the leading indentation (typically a tab character) of this recipe line, or None if no indent token is present.

§Example

use makefile_lossless::Makefile;

let makefile: Makefile = "all:\n\techo hello\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let recipe = rule.recipe_nodes().next().unwrap();
assert_eq!(recipe.indent(), Some("\t".to_string()));

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pub fn comment(&self) -> Option<String>

Get the comment content of this recipe line, if any

Returns the comment text (including the ‘#’ character) if this recipe line contains a comment, or None if there is no comment.

§Example

use makefile_lossless::Makefile;

let makefile: Makefile = "all:\n\t# This is a comment\n\techo hello\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let recipes: Vec<_> = rule.recipe_nodes().collect();
assert_eq!(recipes[0].comment(), Some("# This is a comment".to_string()));
assert_eq!(recipes[1].comment(), None);

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pub fn full(&self) -> String

Get the full content of this recipe line

Returns all content including command text, comments, and internal whitespace, but excluding the leading indent. This is useful for getting the complete content of a recipe line regardless of whether it’s a command, comment, or both.

§Example

use makefile_lossless::Makefile;

let makefile: Makefile = "all:\n\techo hello # inline comment\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let recipe = rule.recipe_nodes().next().unwrap();
assert_eq!(recipe.full(), "echo hello # inline comment");

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pub fn parent(&self) -> Option<Rule>

Get the parent rule containing this recipe

§Example

use makefile_lossless::Makefile;

let makefile: Makefile = "all:\n\techo hello\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let recipe = rule.recipe_nodes().next().unwrap();
let parent = recipe.parent().unwrap();
assert_eq!(parent.targets().collect::<Vec<_>>(), vec!["all"]);

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pub fn is_silent(&self) -> bool

Check if this recipe has the silent prefix (@)

§Example

use makefile_lossless::Makefile;

let makefile: Makefile = "all:\n\t@echo hello\n\techo world\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let recipes: Vec<_> = rule.recipe_nodes().collect();
assert!(recipes[0].is_silent());
assert!(!recipes[1].is_silent());

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pub fn is_ignore_errors(&self) -> bool

Check if this recipe has the ignore-errors prefix (-)

§Example

use makefile_lossless::Makefile;

let makefile: Makefile = "all:\n\t-echo hello\n\techo world\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let recipes: Vec<_> = rule.recipe_nodes().collect();
assert!(recipes[0].is_ignore_errors());
assert!(!recipes[1].is_ignore_errors());

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pub fn set_prefix(&mut self, prefix: &str)

Set the command prefix for this recipe

The prefix can contain @ (silent), - (ignore errors), and/or + (always execute). Pass an empty string to remove all prefixes.

§Example

use makefile_lossless::Makefile;

let mut makefile: Makefile = "all:\n\techo hello\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let mut recipe = rule.recipe_nodes().next().unwrap();
recipe.set_prefix("@");
assert_eq!(recipe.text(), "@echo hello");
assert!(recipe.is_silent());

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pub fn replace_text(&mut self, new_text: &str)

Replace the text content of this recipe line

§Example

use makefile_lossless::Makefile;

let mut makefile: Makefile = "all:\n\techo hello\n".parse().unwrap();
let rule = makefile.rules().next().unwrap();
let mut recipe = rule.recipe_nodes().next().unwrap();
recipe.replace_text("echo world");
assert_eq!(recipe.text(), "echo world");

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pub fn insert_before(&self, text: &str)

Insert a new recipe line before this one

§Example

use makefile_lossless::Makefile;

let mut makefile: Makefile = "all:\n\techo world\n".parse().unwrap();
let mut rule = makefile.rules().next().unwrap();
let mut recipe = rule.recipe_nodes().next().unwrap();
recipe.insert_before("echo hello");
assert_eq!(rule.recipes().collect::<Vec<_>>(), vec!["echo hello", "echo world"]);

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pub fn insert_after(&self, text: &str)

Insert a new recipe line after this one

§Example

use makefile_lossless::Makefile;

let mut makefile: Makefile = "all:\n\techo hello\n".parse().unwrap();
let mut rule = makefile.rules().next().unwrap();
let mut recipe = rule.recipe_nodes().next().unwrap();
recipe.insert_after("echo world");
assert_eq!(rule.recipes().collect::<Vec<_>>(), vec!["echo hello", "echo world"]);

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pub fn remove(&self)

Remove this recipe line from its parent

§Example

use makefile_lossless::Makefile;

let mut makefile: Makefile = "all:\n\techo hello\n\techo world\n".parse().unwrap();
let mut rule = makefile.rules().next().unwrap();
let mut recipe = rule.recipe_nodes().next().unwrap();
recipe.remove();
assert_eq!(rule.recipes().collect::<Vec<_>>(), vec!["echo world"]);