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fix(es/minifier): Abort seq inliner using visitor (#7699)
**Related issue:** - Closes #7697.
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parent
cd98859482
commit
a26dbce981
@ -2031,9 +2031,11 @@ impl Optimizer<'_> {
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pat_usage: Default::default(),
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target: a_id,
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in_lhs: false,
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abort: false,
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in_abort: false,
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};
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b.visit_with(&mut v);
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if v.expr_usage != 1 || v.pat_usage != 0 {
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if v.expr_usage != 1 || v.pat_usage != 0 || v.abort {
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log_abort!(
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"sequences: Aborting merging of an update expression because of \
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usage counts ({}, ref = {}, pat = {})",
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@ -2103,9 +2105,11 @@ impl Optimizer<'_> {
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pat_usage: Default::default(),
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target: a_id,
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in_lhs: false,
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abort: false,
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in_abort: false,
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};
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b.visit_with(&mut v);
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if v.expr_usage != 1 || v.pat_usage != 0 {
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if v.expr_usage != 1 || v.pat_usage != 0 || v.abort {
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log_abort!(
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"sequences: Aborting merging of an update expression because of \
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usage counts ({}, ref = {}, pat = {})",
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@ -2426,9 +2430,11 @@ impl Optimizer<'_> {
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pat_usage: Default::default(),
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target: &left_id,
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in_lhs: false,
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abort: false,
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in_abort: false,
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};
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b.visit_with(&mut v);
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if v.expr_usage != 1 || v.pat_usage != 0 {
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if v.expr_usage != 1 || v.pat_usage != 0 || v.abort {
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log_abort!(
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"sequences: Aborting because of usage counts ({}{:?}, ref = {}, pat = {})",
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left_id.sym,
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@ -2493,8 +2499,11 @@ struct UsageCounter<'a> {
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expr_usage: usize,
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pat_usage: usize,
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abort: bool,
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target: &'a Ident,
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in_lhs: bool,
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in_abort: bool,
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}
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impl Visit for UsageCounter<'_> {
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@ -2502,6 +2511,11 @@ impl Visit for UsageCounter<'_> {
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fn visit_ident(&mut self, i: &Ident) {
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if self.target.sym == i.sym && self.target.span.ctxt == i.span.ctxt {
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if self.in_abort {
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self.abort = true;
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return;
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}
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if self.in_lhs {
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self.pat_usage += 1;
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} else {
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@ -2521,6 +2535,27 @@ impl Visit for UsageCounter<'_> {
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}
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}
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fn visit_update_expr(&mut self, e: &UpdateExpr) {
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let old_in_abort = self.in_abort;
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self.in_abort = true;
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e.visit_children_with(self);
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self.in_abort = old_in_abort;
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}
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fn visit_await_expr(&mut self, e: &AwaitExpr) {
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let old_in_abort = self.in_abort;
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self.in_abort = true;
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e.visit_children_with(self);
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self.in_abort = old_in_abort;
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}
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fn visit_yield_expr(&mut self, e: &YieldExpr) {
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let old_in_abort = self.in_abort;
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self.in_abort = true;
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e.visit_children_with(self);
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self.in_abort = old_in_abort;
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}
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fn visit_pat(&mut self, p: &Pat) {
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let old = self.in_lhs;
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self.in_lhs = true;
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@ -0,0 +1,47 @@
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{
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"arguments": false,
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"arrows": true,
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"booleans": true,
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"booleans_as_integers": false,
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"collapse_vars": true,
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"comparisons": true,
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"computed_props": true,
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"conditionals": true,
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"dead_code": true,
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"directives": true,
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"drop_console": false,
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"drop_debugger": true,
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"evaluate": true,
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"expression": true,
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"hoist_funs": false,
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"hoist_props": true,
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"hoist_vars": false,
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"if_return": true,
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"join_vars": true,
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"keep_classnames": false,
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"keep_fargs": true,
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"keep_fnames": false,
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"keep_infinity": false,
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"loops": true,
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"negate_iife": true,
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"properties": true,
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"reduce_funcs": false,
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"reduce_vars": false,
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"side_effects": true,
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"switches": true,
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"typeofs": true,
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"unsafe": false,
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"unsafe_arrows": false,
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"unsafe_comps": false,
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"unsafe_Function": false,
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"unsafe_math": false,
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"unsafe_symbols": false,
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"unsafe_methods": false,
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"unsafe_proto": false,
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"unsafe_regexp": false,
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"unsafe_undefined": false,
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"unused": true,
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"const_to_let": true,
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"pristine_globals": true,
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"passes": 2
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}
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@ -0,0 +1,6 @@
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let id = 0;
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export function getId() {
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id = id % 9999;
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return `${id++}`
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}
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@ -0,0 +1,4 @@
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let id = 0;
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export function getId() {
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return id %= 9999, `${id++}`;
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}
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