Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 5434x 5434x 5434x 5434x 5434x 5434x 3604x 1187x 1187x 3604x 3604x 5434x 5434x 63x 1x 1x 62x 62x 62x 63x 63x 62x 62x 62x 62x 63x 2x 2x 60x 60x 5434x 5434x 2x 2x 2x 2x 5434x 5434x 277x 1x 1x 276x 276x 276x 276x 276x 277x 275x 277x 2x 2x 274x 277x 1x 1x 273x 273x 5434x 5434x 5434x 5434x 5434x 1234x 1234x 136x 1234x 5x 5x 1229x 1234x 2x 1234x 2x 2x 1225x 1225x 5434x 5434x 5434x 177x 2x 2x 175x 175x 2x 2x 173x 173x 173x 173x 173x 173x 5434x 5434x 10x 10x 10x 5434x 5434x 15x 15x 15x 5434x 5434x 37x 37x 37x 5434x 5434x 4x 4x 4x 5434x 5434x 11x 1x 1x 10x 10x 5434x 5411x 5434x 165x 165x 165x 165x 165x 165x 165x 2x 2x 165x 5411x 5434x 3360x 3360x 3360x 1613x 1613x 3360x 5411x 5411x 5434x 198x 5434x 5213x 5213x 5407x 5434x 1049x 1049x 1049x 1049x 1049x 958x 958x 958x 1049x 5434x | /** @import { CallExpression, VariableDeclarator } from 'estree' */
/** @import { AST, SvelteNode } from '#compiler' */
/** @import { Context } from '../types' */
import { get_rune } from '../../scope.js';
import * as e from '../../../errors.js';
import { get_parent, unwrap_optional } from '../../../utils/ast.js';
import { is_pure, is_safe_identifier } from './shared/utils.js';
/**
* @param {CallExpression} node
* @param {Context} context
*/
export function CallExpression(node, context) {
const parent = /** @type {SvelteNode} */ (get_parent(context.path, -1));
const rune = get_rune(node, context.state.scope);
switch (rune) {
case null:
if (!is_safe_identifier(node.callee, context.state.scope)) {
context.state.analysis.needs_context = true;
}
break;
case '$bindable':
if (node.arguments.length > 1) {
e.rune_invalid_arguments_length(node, '$bindable', 'zero or one arguments');
}
if (
parent.type !== 'AssignmentPattern' ||
context.path.at(-3)?.type !== 'ObjectPattern' ||
context.path.at(-4)?.type !== 'VariableDeclarator' ||
get_rune(
/** @type {VariableDeclarator} */ (context.path.at(-4)).init,
context.state.scope
) !== '$props'
) {
e.bindable_invalid_location(node);
}
break;
case '$host':
if (node.arguments.length > 0) {
e.rune_invalid_arguments(node, '$host');
} else if (context.state.ast_type === 'module' || !context.state.analysis.custom_element) {
e.host_invalid_placement(node);
}
break;
case '$props':
if (context.state.has_props_rune) {
e.props_duplicate(node);
}
context.state.has_props_rune = true;
if (
parent.type !== 'VariableDeclarator' ||
context.state.ast_type !== 'instance' ||
context.state.scope !== context.state.analysis.instance.scope
) {
e.props_invalid_placement(node);
}
if (node.arguments.length > 0) {
e.rune_invalid_arguments(node, rune);
}
break;
case '$state':
case '$state.raw':
case '$derived':
case '$derived.by':
if (
parent.type !== 'VariableDeclarator' &&
!(parent.type === 'PropertyDefinition' && !parent.static && !parent.computed)
) {
e.state_invalid_placement(node, rune);
}
if ((rune === '$derived' || rune === '$derived.by') && node.arguments.length !== 1) {
e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
} else if (rune === '$state' && node.arguments.length > 1) {
e.rune_invalid_arguments_length(node, rune, 'zero or one arguments');
}
break;
case '$effect':
case '$effect.pre':
if (parent.type !== 'ExpressionStatement') {
e.effect_invalid_placement(node);
}
if (node.arguments.length !== 1) {
e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
}
// `$effect` needs context because Svelte needs to know whether it should re-run
// effects that invalidate themselves, and that's determined by whether we're in runes mode
context.state.analysis.needs_context = true;
break;
case '$effect.tracking':
if (node.arguments.length !== 0) {
e.rune_invalid_arguments(node, rune);
}
break;
case '$effect.root':
if (node.arguments.length !== 1) {
e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
}
break;
case '$inspect':
if (node.arguments.length < 1) {
e.rune_invalid_arguments_length(node, rune, 'one or more arguments');
}
break;
case '$inspect().with':
if (node.arguments.length !== 1) {
e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
}
break;
case '$state.snapshot':
if (node.arguments.length !== 1) {
e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
}
break;
}
if (context.state.render_tag) {
// Find out which of the render tag arguments contains this call expression
const arg_idx = unwrap_optional(context.state.render_tag.expression).arguments.findIndex(
(arg) => arg === node || context.path.includes(arg)
);
// -1 if this is the call expression of the render tag itself
if (arg_idx !== -1) {
context.state.render_tag.metadata.args_with_call_expression.add(arg_idx);
}
}
if (node.callee.type === 'Identifier') {
const binding = context.state.scope.get(node.callee.name);
if (binding !== null) {
binding.is_called = true;
}
}
// `$inspect(foo)` or `$derived(foo) should not trigger the `static-state-reference` warning
if (rune === '$inspect' || rune === '$derived') {
context.next({ ...context.state, function_depth: context.state.function_depth + 1 });
} else {
context.next();
}
if (context.state.expression) {
// TODO We assume that any dependencies are stateful, which isn't necessarily the case — see
// https://github.com/sveltejs/svelte/issues/13266. This check also includes dependencies
// outside the call expression itself (e.g. `{blah && pure()}`) resulting in additional
// false positives, but for now we accept that trade-off
if (!is_pure(node.callee, context) || context.state.expression.dependencies.size > 0) {
context.state.expression.has_call = true;
context.state.expression.has_state = true;
}
}
}
|