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fix bug

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This commit is contained in:
Dmitry Vasilev
2022-12-31 20:40:59 +08:00
parent fe0f75bcc0
commit 78c40e3f6c
2 changed files with 27 additions and 11 deletions
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21
src/eval.js
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@@ -72,8 +72,8 @@ const codegen_function_expr = (node, cxt) => {
const call = (node.is_async ? 'async ' : '') + `(${args}) => ` + (
(node.body.type == 'do')
? '{' + do_codegen(node.body) + '}'
: '(' + do_codegen(node.body) + ')'
? '{ let __obj, __fn; ' + do_codegen(node.body) + '}'
: '{ let __obj, __fn; return ' + do_codegen(node.body) + '}'
)
const argscount = node
@@ -103,18 +103,17 @@ const codegen_function_call = (node, cxt) => {
let call
if(node.fn.type == 'member_access') {
// Wrap to IIFE to create scope to calculate obj.
// We cant do `codegen(obj)[prop].bind(codegen(obj))` because codegen(obj)
// can be expr we dont want to eval twice
const op = node.fn.is_optional_chaining ? '?.' : ''
// TODO gensym __obj, __fn
return `((() => {
const __obj = ${do_codegen(node.fn.object)};
const __fn = __obj${op}[${do_codegen(node.fn.property)}]
return trace_call(__fn, __obj, ${args})
})())`
// We cant do `codegen(obj)[prop].bind(codegen(obj))` because codegen(obj)
// can be expr we dont want to eval twice. Use comma operator to perform
// assignments in expression context
return `(
__obj = ${do_codegen(node.fn.object)},
__fn = __obj${op}[${do_codegen(node.fn.property)}],
trace_call(__fn, __obj, ${args})
)`
} else {
return `trace_call(${do_codegen(node.fn)}, null, ${args})`
}