ce6aa207e9
- 将所有图片路径从绝对路径改为使用 process.env.PUBLIC_URL - 修复 HomePage.tsx 中所有图片引用 - 修复 CoursePage.tsx 中所有图片引用 - 确保图片在 GitHub Pages 上正确加载 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
54 lines
2.1 KiB
JavaScript
54 lines
2.1 KiB
JavaScript
import {
|
|
AST_Binary,
|
|
AST_Conditional,
|
|
AST_Chain,
|
|
AST_Dot,
|
|
AST_Object,
|
|
AST_Sequence,
|
|
AST_Statement,
|
|
AST_Sub,
|
|
AST_UnaryPostfix,
|
|
AST_PrefixedTemplateString
|
|
} from "../ast.js";
|
|
|
|
// return true if the node at the top of the stack (that means the
|
|
// innermost node in the current output) is lexically the first in
|
|
// a statement.
|
|
function first_in_statement(stack) {
|
|
let node = stack.parent(-1);
|
|
for (let i = 0, p; p = stack.parent(i); i++) {
|
|
if (p instanceof AST_Statement && p.body === node)
|
|
return true;
|
|
if ((p instanceof AST_Sequence && p.expressions[0] === node) ||
|
|
(p.TYPE === "Call" && p.expression === node) ||
|
|
(p instanceof AST_PrefixedTemplateString && p.prefix === node) ||
|
|
(p instanceof AST_Dot && p.expression === node) ||
|
|
(p instanceof AST_Sub && p.expression === node) ||
|
|
(p instanceof AST_Chain && p.expression === node) ||
|
|
(p instanceof AST_Conditional && p.condition === node) ||
|
|
(p instanceof AST_Binary && p.left === node) ||
|
|
(p instanceof AST_UnaryPostfix && p.expression === node)
|
|
) {
|
|
node = p;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Returns whether the leftmost item in the expression is an object
|
|
function left_is_object(node) {
|
|
if (node instanceof AST_Object) return true;
|
|
if (node instanceof AST_Sequence) return left_is_object(node.expressions[0]);
|
|
if (node.TYPE === "Call") return left_is_object(node.expression);
|
|
if (node instanceof AST_PrefixedTemplateString) return left_is_object(node.prefix);
|
|
if (node instanceof AST_Dot || node instanceof AST_Sub) return left_is_object(node.expression);
|
|
if (node instanceof AST_Chain) return left_is_object(node.expression);
|
|
if (node instanceof AST_Conditional) return left_is_object(node.condition);
|
|
if (node instanceof AST_Binary) return left_is_object(node.left);
|
|
if (node instanceof AST_UnaryPostfix) return left_is_object(node.expression);
|
|
return false;
|
|
}
|
|
|
|
export { first_in_statement, left_is_object };
|