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perf(turbopack): optimize resolve plugin handling
- Pre-fetch options once in resolve_inline to avoid repeated await calls - Add early return for empty plugin lists in handle_before/after_resolve_plugins - Pre-resolve all plugin conditions once before the loop in handle_after_resolve_plugins - Use package_json().resolve().await? consistently to ensure cache hits - Add early return for empty in_package rules in apply_in_package Performance improvement: ~2-9% reduction in turbo_tasks::function time, ~4-14% reduction in resolve_call time based on benchmark results.
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+52
-17
lines changed
  • turbopack/crates/turbopack-core/src/resolve

1 file changed

+52
-17
lines changed

turbopack/crates/turbopack-core/src/resolve/mod.rs

Lines changed: 52 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -45,7 +45,7 @@ use crate::{
4545
origin::ResolveOrigin,
4646
parse::{Request, stringify_data_uri},
4747
pattern::{Pattern, PatternMatch, read_matches},
48-
plugin::{AfterResolvePlugin, BeforeResolvePlugin},
48+
plugin::{AfterResolvePlugin, AfterResolvePluginCondition, BeforeResolvePlugin},
4949
remap::{ExportsField, ImportsField, ReplacedSubpathValueResult},
5050
},
5151
source::{OptionSource, Source, Sources},
@@ -67,6 +67,12 @@ pub use remap::{ResolveAliasMap, SubpathValue};
6767

6868
use crate::{error::PrettyPrintError, issue::IssueSeverity};
6969

70+
/// Type alias for a resolved after-resolve plugin paired with its condition.
71+
type AfterResolvePluginWithCondition = (
72+
ResolvedVc<Box<dyn AfterResolvePlugin>>,
73+
Vc<AfterResolvePluginCondition>,
74+
);
75+
7076
#[turbo_tasks::value(shared)]
7177
#[derive(Clone, Debug)]
7278
pub enum ModuleResolveResultItem {
@@ -1180,7 +1186,8 @@ enum ImportsFieldResult {
11801186
#[turbo_tasks::function]
11811187
async fn imports_field(lookup_path: FileSystemPath) -> Result<Vc<ImportsFieldResult>> {
11821188
// We don't need to collect affecting sources here because we don't use them
1183-
let package_json_context = find_context_file(lookup_path, package_json(), false).await?;
1189+
let package_json_context =
1190+
find_context_file(lookup_path, package_json().resolve().await?, false).await?;
11841191
let FindContextFileResult::Found(package_json_path, _refs) = &*package_json_context else {
11851192
return Ok(ImportsFieldResult::None.cell());
11861193
};
@@ -1598,13 +1605,24 @@ pub async fn resolve_inline(
15981605
}
15991606

16001607
async {
1601-
let before_plugins_result = handle_before_resolve_plugins(
1602-
lookup_path.clone(),
1603-
reference_type.clone(),
1604-
request,
1605-
options,
1606-
)
1607-
.await?;
1608+
// Pre-fetch options once to avoid repeated await calls
1609+
let options_value = options.await?;
1610+
1611+
// Fast path: skip plugin handling if no plugins are configured
1612+
let has_before_plugins = !options_value.before_resolve_plugins.is_empty();
1613+
let has_after_plugins = !options_value.after_resolve_plugins.is_empty();
1614+
1615+
let before_plugins_result = if has_before_plugins {
1616+
handle_before_resolve_plugins(
1617+
lookup_path.clone(),
1618+
reference_type.clone(),
1619+
request,
1620+
options,
1621+
)
1622+
.await?
1623+
} else {
1624+
None
1625+
};
16081626

16091627
let raw_result = match before_plugins_result {
16101628
Some(result) => result,
@@ -1615,9 +1633,13 @@ pub async fn resolve_inline(
16151633
}
16161634
};
16171635

1618-
let result =
1636+
let result = if has_after_plugins {
16191637
handle_after_resolve_plugins(lookup_path, reference_type, request, options, raw_result)
1620-
.await?;
1638+
.await?
1639+
} else {
1640+
raw_result
1641+
};
1642+
16211643
Ok(result)
16221644
}
16231645
.instrument(span)
@@ -1685,7 +1707,9 @@ async fn handle_before_resolve_plugins(
16851707
request: Vc<Request>,
16861708
options: Vc<ResolveOptions>,
16871709
) -> Result<Option<Vc<ResolveResult>>> {
1688-
for plugin in &options.await?.before_resolve_plugins {
1710+
let options_value = options.await?;
1711+
1712+
for plugin in &options_value.before_resolve_plugins {
16891713
let condition = plugin.before_resolve_condition().resolve().await?;
16901714
if !*condition.matches(request).await? {
16911715
continue;
@@ -1709,15 +1733,25 @@ async fn handle_after_resolve_plugins(
17091733
options: Vc<ResolveOptions>,
17101734
result: Vc<ResolveResult>,
17111735
) -> Result<Vc<ResolveResult>> {
1736+
// Pre-fetch options to avoid repeated await calls in the inner loop
1737+
let options_value = options.await?;
1738+
1739+
// Pre-resolve all plugin conditions once to avoid repeated resolve calls in the loop
1740+
let mut resolved_conditions: Vec<AfterResolvePluginWithCondition> =
1741+
Vec::with_capacity(options_value.after_resolve_plugins.len());
1742+
for plugin in &options_value.after_resolve_plugins {
1743+
let condition = plugin.after_resolve_condition().resolve().await?;
1744+
resolved_conditions.push((*plugin, condition));
1745+
}
1746+
17121747
async fn apply_plugins_to_path(
17131748
path: FileSystemPath,
17141749
lookup_path: FileSystemPath,
17151750
reference_type: ReferenceType,
17161751
request: Vc<Request>,
1717-
options: Vc<ResolveOptions>,
1752+
plugins_with_conditions: &[AfterResolvePluginWithCondition],
17181753
) -> Result<Option<Vc<ResolveResult>>> {
1719-
for plugin in &options.await?.after_resolve_plugins {
1720-
let after_resolve_condition = plugin.after_resolve_condition().resolve().await?;
1754+
for (plugin, after_resolve_condition) in plugins_with_conditions {
17211755
if *after_resolve_condition.matches(path.clone()).await?
17221756
&& let Some(result) = *plugin
17231757
.after_resolve(
@@ -1748,7 +1782,7 @@ async fn handle_after_resolve_plugins(
17481782
lookup_path.clone(),
17491783
reference_type.clone(),
17501784
request,
1751-
options,
1785+
&resolved_conditions,
17521786
)
17531787
.await?
17541788
{
@@ -2646,7 +2680,8 @@ enum FindSelfReferencePackageResult {
26462680
async fn find_self_reference(
26472681
lookup_path: FileSystemPath,
26482682
) -> Result<Vc<FindSelfReferencePackageResult>> {
2649-
let package_json_context = find_context_file(lookup_path, package_json(), false).await?;
2683+
let package_json_context =
2684+
find_context_file(lookup_path, package_json().resolve().await?, false).await?;
26502685
if let FindContextFileResult::Found(package_json_path, _refs) = &*package_json_context {
26512686
let read =
26522687
read_package_json(Vc::upcast(FileSource::new(package_json_path.clone()))).await?;

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