forked from rollup/rollup
/
CallExpression.ts
151 lines (142 loc) · 4.51 KB
/
CallExpression.ts
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import type MagicString from 'magic-string';
import type { NormalizedTreeshakingOptions } from '../../rollup/types';
import { BLANK } from '../../utils/blank';
import { renderCallArguments } from '../../utils/renderCallArguments';
import { type NodeRenderOptions, type RenderOptions } from '../../utils/renderHelpers';
import type { DeoptimizableEntity } from '../DeoptimizableEntity';
import type { HasEffectsContext, InclusionContext } from '../ExecutionContext';
import { EVENT_CALLED } from '../NodeEvents';
import {
EMPTY_PATH,
type PathTracker,
SHARED_RECURSION_TRACKER,
UNKNOWN_PATH
} from '../utils/PathTracker';
import Identifier from './Identifier';
import MemberExpression from './MemberExpression';
import type * as NodeType from './NodeType';
import type SpreadElement from './SpreadElement';
import type Super from './Super';
import CallExpressionBase from './shared/CallExpressionBase';
import { type ExpressionEntity, UNKNOWN_EXPRESSION } from './shared/Expression';
import { type ExpressionNode, INCLUDE_PARAMETERS, type IncludeChildren } from './shared/Node';
export default class CallExpression extends CallExpressionBase implements DeoptimizableEntity {
declare arguments: (ExpressionNode | SpreadElement)[];
declare callee: ExpressionNode | Super;
declare optional: boolean;
declare type: NodeType.tCallExpression;
bind(): void {
super.bind();
if (this.callee instanceof Identifier) {
const variable = this.scope.findVariable(this.callee.name);
if (variable.isNamespace) {
this.context.warn(
{
code: 'CANNOT_CALL_NAMESPACE',
message: `Cannot call a namespace ('${this.callee.name}')`
},
this.start
);
}
if (this.callee.name === 'eval') {
this.context.warn(
{
code: 'EVAL',
message: `Use of eval is strongly discouraged, as it poses security risks and may cause issues with minification`,
url: 'https://rollupjs.org/guide/en/#avoiding-eval'
},
this.start
);
}
}
this.callOptions = {
args: this.arguments,
thisParam:
this.callee instanceof MemberExpression && !this.callee.variable
? this.callee.object
: null,
withNew: false
};
}
hasEffects(context: HasEffectsContext): boolean {
try {
for (const argument of this.arguments) {
if (argument.hasEffects(context)) return true;
}
if (
(this.context.options.treeshake as NormalizedTreeshakingOptions).annotations &&
this.annotations
)
return false;
return (
this.callee.hasEffects(context) ||
this.callee.hasEffectsWhenCalledAtPath(EMPTY_PATH, this.callOptions, context)
);
} finally {
if (!this.deoptimized) this.applyDeoptimizations();
}
}
include(context: InclusionContext, includeChildrenRecursively: IncludeChildren): void {
if (!this.deoptimized) this.applyDeoptimizations();
if (includeChildrenRecursively) {
super.include(context, includeChildrenRecursively);
if (
includeChildrenRecursively === INCLUDE_PARAMETERS &&
this.callee instanceof Identifier &&
this.callee.variable
) {
this.callee.variable.markCalledFromTryStatement();
}
} else {
this.included = true;
this.callee.include(context, false, { includeWithoutParameterDefaults: true });
}
this.callee.includeCallArguments(context, this.arguments);
const returnExpression = this.getReturnExpression();
if (!returnExpression.included) {
returnExpression.include(context, false);
}
}
render(
code: MagicString,
options: RenderOptions,
{ renderedSurroundingElement }: NodeRenderOptions = BLANK
): void {
this.callee.render(code, options, {
isCalleeOfRenderedParent: true,
renderedSurroundingElement
});
renderCallArguments(code, options, this);
}
protected applyDeoptimizations(): void {
this.deoptimized = true;
const { thisParam } = this.callOptions;
if (thisParam) {
this.callee.deoptimizeThisOnEventAtPath(
EVENT_CALLED,
EMPTY_PATH,
thisParam,
SHARED_RECURSION_TRACKER
);
}
for (const argument of this.arguments) {
// This will make sure all properties of parameters behave as "unknown"
argument.deoptimizePath(UNKNOWN_PATH);
}
this.context.requestTreeshakingPass();
}
protected getReturnExpression(
recursionTracker: PathTracker = SHARED_RECURSION_TRACKER
): ExpressionEntity {
if (this.returnExpression === null) {
this.returnExpression = UNKNOWN_EXPRESSION;
return (this.returnExpression = this.callee.getReturnExpressionWhenCalledAtPath(
EMPTY_PATH,
this.callOptions,
recursionTracker,
this
));
}
return this.returnExpression;
}
}