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classes.js
159 lines (134 loc) 路 3.24 KB
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classes.js
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import * as t from "@babel/types";
export function ClassDeclaration(node: Object, parent: Object) {
if (
!this.format.decoratorsBeforeExport ||
(!t.isExportDefaultDeclaration(parent) &&
!t.isExportNamedDeclaration(parent))
) {
this.printJoin(node.decorators, node);
}
if (node.declare) {
// TS
this.word("declare");
this.space();
}
if (node.abstract) {
// TS
this.word("abstract");
this.space();
}
this.word("class");
if (node.id) {
this.space();
this.print(node.id, node);
}
this.print(node.typeParameters, node);
if (node.superClass) {
this.space();
this.word("extends");
this.space();
this.print(node.superClass, node);
this.print(node.superTypeParameters, node);
}
if (node.implements) {
this.space();
this.word("implements");
this.space();
this.printList(node.implements, node);
}
this.space();
this.print(node.body, node);
}
export { ClassDeclaration as ClassExpression };
export function ClassBody(node: Object) {
this.token("{");
this.printInnerComments(node);
if (node.body.length === 0) {
this.token("}");
} else {
this.newline();
this.indent();
this.printSequence(node.body, node);
this.dedent();
if (!this.endsWith("\n")) this.newline();
this.rightBrace();
}
}
export function ClassProperty(node: Object) {
this.printJoin(node.decorators, node);
// catch up to property key, avoid line break
// between member modifiers and the property key.
this.source("end", node.key.loc);
this.tsPrintClassMemberModifiers(node, /* isField */ true);
if (node.computed) {
this.token("[");
this.print(node.key, node);
this.token("]");
} else {
this._variance(node);
this.print(node.key, node);
}
// TS
if (node.optional) {
this.token("?");
}
if (node.definite) {
this.token("!");
}
this.print(node.typeAnnotation, node);
if (node.value) {
this.space();
this.token("=");
this.space();
this.print(node.value, node);
}
this.semicolon();
}
export function ClassPrivateProperty(node: Object) {
this.printJoin(node.decorators, node);
if (node.static) {
this.word("static");
this.space();
}
this.print(node.key, node);
this.print(node.typeAnnotation, node);
if (node.value) {
this.space();
this.token("=");
this.space();
this.print(node.value, node);
}
this.semicolon();
}
export function ClassMethod(node: Object) {
this._classMethodHead(node);
this.space();
this.print(node.body, node);
}
export function ClassPrivateMethod(node: Object) {
this._classMethodHead(node);
this.space();
this.print(node.body, node);
}
export function _classMethodHead(node) {
this.printJoin(node.decorators, node);
// catch up to method key, avoid line break
// between member modifiers/method heads and the method key.
this.source("end", node.key.loc);
this.tsPrintClassMemberModifiers(node, /* isField */ false);
this._methodHead(node);
}
export function StaticBlock(node) {
this.word("static");
this.space();
this.token("{");
if (node.body.length === 0) {
this.token("}");
} else {
this.newline();
this.printSequence(node.body, node, {
indent: true,
});
this.rightBrace();
}
}