fix: support each without as

sveltejs · Dec 3, 2024 · e0bde92 · e0bde92
1 parent 131f78a
commit e0bde92
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Showing 7 changed files with 114 additions and 10 deletions.
diff --git a/packages/svelte-vscode/syntaxes/svelte.tmLanguage.src.yaml b/packages/svelte-vscode/syntaxes/svelte.tmLanguage.src.yaml
@@ -260,11 +260,11 @@ repository:
       patterns:
       # Start expression.
       - begin: \G\s*?(?=\S)
-        end: (?=(?:^\s*|\s+)(as))
+        end: (?=(?:(?:^\s*|\s+)(as))|\s*(}|,))
         contentName: meta.embedded.expression.svelte source.ts
         patterns: [ include: source.ts ]
       # 'as' token and onwards.
-      - begin: (as)
+      - begin: (as)|(?=}|,)
         beginCaptures: { 1: { name: keyword.control.as.svelte } }
         end: (?=})
         patterns:

diff --git a/packages/svelte-vscode/test/grammar/samples/each-block/input.svelte b/packages/svelte-vscode/test/grammar/samples/each-block/input.svelte
@@ -7,3 +7,19 @@
 {#each showGroups as [key, items] (key)}
 
 {/each}
+
+{#each v}
+    this should be seen as text 
+{/each}
+
+{#each v }
+    this should be seen as text 
+{/each}
+
+{#each v, i}
+    this should be seen as text 
+{/each}
+
+{#each v , i}
+    this should be seen as text 
+{/each}
diff --git a/packages/svelte-vscode/test/grammar/samples/each-block/input.svelte.snap b/packages/svelte-vscode/test/grammar/samples/each-block/input.svelte.snap
@@ -61,4 +61,70 @@
 # ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.keyword.svelte
 #  ^^^^ source.svelte meta.special.each.svelte meta.special.end.svelte keyword.control.svelte
 #      ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.end.svelte
+>
+>{#each v}
+#^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.start.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.start.svelte
+#       ^ source.svelte meta.special.each.svelte meta.special.start.svelte meta.embedded.expression.svelte source.ts
+#        ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.end.svelte
+>    this should be seen as text 
+#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ source.svelte text.svelte
+>{/each}
+#^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.end.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.end.svelte
+>
+>{#each v }
+#^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.start.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.start.svelte
+#       ^ source.svelte meta.special.each.svelte meta.special.start.svelte meta.embedded.expression.svelte source.ts
+#        ^ source.svelte meta.special.each.svelte meta.special.start.svelte
+#         ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.end.svelte
+>    this should be seen as text 
+#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ source.svelte text.svelte
+>{/each}
+#^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.end.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.end.svelte
+>
+>{#each v, i}
+#^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.start.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.start.svelte
+#       ^ source.svelte meta.special.each.svelte meta.special.start.svelte meta.embedded.expression.svelte source.ts
+#        ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.separator.svelte
+#         ^^ source.svelte meta.special.each.svelte meta.special.start.svelte meta.embedded.expression.svelte source.ts
+#           ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.end.svelte
+>    this should be seen as text 
+#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ source.svelte text.svelte
+>{/each}
+#^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.end.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.end.svelte
+>
+>{#each v , i}
+#^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.start.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.start.svelte
+#       ^ source.svelte meta.special.each.svelte meta.special.start.svelte meta.embedded.expression.svelte source.ts
+#        ^ source.svelte meta.special.each.svelte meta.special.start.svelte
+#         ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.separator.svelte
+#          ^^ source.svelte meta.special.each.svelte meta.special.start.svelte meta.embedded.expression.svelte source.ts
+#            ^ source.svelte meta.special.each.svelte meta.special.start.svelte punctuation.definition.block.end.svelte
+>    this should be seen as text 
+#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ source.svelte text.svelte
+>{/each}
+#^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.begin.svelte
+# ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.keyword.svelte
+#  ^^^^ source.svelte meta.special.each.svelte meta.special.end.svelte keyword.control.svelte
+#      ^ source.svelte meta.special.each.svelte meta.special.end.svelte punctuation.definition.block.end.svelte
 >
diff --git a/packages/svelte-vscode/test/grammar/test.js b/packages/svelte-vscode/test/grammar/test.js
@@ -48,7 +48,9 @@ async function snapShotTest() {
     ];
 
     const code = await promisifySpawn(process.platform === 'win32' ? 'npx.cmd' : 'npx', args, {
-        stdio: 'inherit'
+        stdio: 'inherit',
+        // https://nodejs.org/en/blog/vulnerability/april-2024-security-releases-2#command-injection-via-args-parameter-of-child_processspawn-without-shell-option-enabled-on-windows-cve-2024-27980---high
+        shell: true
     });
 
     if (code > 0) {

diff --git a/packages/svelte2tsx/src/htmlxtojsx_v2/nodes/EachBlock.ts b/packages/svelte2tsx/src/htmlxtojsx_v2/nodes/EachBlock.ts
@@ -21,36 +21,44 @@ import { getEnd, transform, TransformationArray } from '../utils/node-utils';
  *   `ensureArray` will error that there are more args than expected
  */
 export function handleEach(str: MagicString, eachBlock: BaseNode): void {
-    const startEnd = str.original.indexOf('}', eachBlock.key?.end || eachBlock.context.end) + 1;
+    const startEnd =
+        str.original.indexOf(
+            '}',
+            eachBlock.key?.end || eachBlock.context?.end || eachBlock.expression.end
+        ) + 1;
     let transforms: TransformationArray;
     // {#each true, [1,2]} is valid but for (const x of true, [1,2]) is not if not wrapped with braces
     const containsComma = str.original
         .substring(eachBlock.expression.start, eachBlock.expression.end)
         .includes(',');
     const expressionEnd = getEnd(eachBlock.expression);
-    const contextEnd = getEnd(eachBlock.context);
+    const contextEnd = eachBlock.context && getEnd(eachBlock.context);
     const arrayAndItemVarTheSame =
+        !!eachBlock.context &&
         str.original.substring(eachBlock.expression.start, expressionEnd) ===
-        str.original.substring(eachBlock.context.start, contextEnd);
+            str.original.substring(eachBlock.context.start, contextEnd);
     if (arrayAndItemVarTheSame) {
         transforms = [
             `{ const $$_each = __sveltets_2_ensureArray(${containsComma ? '(' : ''}`,
             [eachBlock.expression.start, eachBlock.expression.end],
             `${containsComma ? ')' : ''}); for(let `,
-            [eachBlock.context.start, contextEnd],
+            [eachBlock.context!.start, contextEnd!],
             ' of $$_each){'
         ];
     } else {
         transforms = [
             'for(let ',
-            [eachBlock.context.start, contextEnd],
+            eachBlock.context ? [eachBlock.context.start, contextEnd] : '$$each_item',
             ` of __sveltets_2_ensureArray(${containsComma ? '(' : ''}`,
             [eachBlock.expression.start, eachBlock.expression.end],
-            `${containsComma ? ')' : ''})){`
+            `${containsComma ? ')' : ''})){${eachBlock.context ? '' : '$$each_item;'}`
         ];
     }
     if (eachBlock.index) {
-        const indexStart = str.original.indexOf(eachBlock.index, eachBlock.context.end);
+        const indexStart = str.original.indexOf(
+            eachBlock.index,
+            eachBlock.context?.end || eachBlock.expression.end
+        );
         const indexEnd = indexStart + eachBlock.index.length;
         transforms.push('let ', [indexStart, indexEnd], ' = 1;');
     }

diff --git a/packages/svelte2tsx/test/htmlx2jsx/samples/each-block-without-as.v5/expectedv2.js b/packages/svelte2tsx/test/htmlx2jsx/samples/each-block-without-as.v5/expectedv2.js
@@ -0,0 +1,5 @@
+ for(let $$each_item of __sveltets_2_ensureArray({ length: 5 })){$$each_item; }
+
+  for(let $$each_item of __sveltets_2_ensureArray({ length: 5 })){$$each_item;let index = 1;
+    index;
+}
diff --git a/packages/svelte2tsx/test/htmlx2jsx/samples/each-block-without-as.v5/input.svelte b/packages/svelte2tsx/test/htmlx2jsx/samples/each-block-without-as.v5/input.svelte
@@ -0,0 +1,7 @@
+{#each { length: 5 }}
+    hi
+{/each}
+
+{#each { length: 5 }, index}
+    {index}
+{/each}