Throw a syntax error for a parameter properties in not constructor (#12061)
This commit is contained in:
Sosuke Suzuki
GitHub
parent
c8f0b6dc1e
commit
bbe0cf09fc
@ -1083,7 +1083,7 @@ export default class StatementParser extends ExpressionParser {
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node.id = this.parseFunctionId();
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}
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this.parseFunctionParams(node);
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this.parseFunctionParams(node, /* allowModifiers */ false);
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// For the smartPipelines plugin: Disable topic references from outer
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// contexts within the function body. They are permitted in function
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@ -90,6 +90,8 @@ const TSErrors = Object.freeze({
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"Template literal types cannot have any substitution",
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TypeAnnotationAfterAssign:
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"Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`",
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UnexpectedParameterModifier:
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"A parameter property is only allowed in a constructor implementation.",
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UnexpectedReadonly:
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"'readonly' type modifier is only permitted on array and tuple literal types.",
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UnexpectedTypeAnnotation: "Did not expect a type annotation here.",
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@ -1709,9 +1711,12 @@ export default (superClass: Class<Parser>): Class<Parser> =>
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let accessibility: ?N.Accessibility;
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let readonly = false;
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if (allowModifiers) {
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if (allowModifiers !== undefined) {
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accessibility = this.parseAccessModifier();
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readonly = !!this.tsParseModifier(["readonly"]);
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if (allowModifiers === false && (accessibility || readonly)) {
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this.raise(startPos, TSErrors.UnexpectedParameterModifier);
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}
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}
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const left = this.parseMaybeDefault();
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@ -0,0 +1,11 @@
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class C {
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not_constructor(
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readonly r,
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public pu: number,
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protected po?,
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private pi?: number,
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public readonly pur,
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// Also works on AssignmentPattern
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readonly x = 0,
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public y?: number = 0) {}
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}
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@ -0,0 +1,199 @@
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{
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"type": "File",
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"start":0,"end":261,"loc":{"start":{"line":1,"column":0},"end":{"line":11,"column":1}},
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"errors": [
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (3:8)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (4:8)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (5:8)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (6:8)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (7:8)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (9:8)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (10:8)"
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],
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"program": {
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"type": "Program",
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"start":0,"end":261,"loc":{"start":{"line":1,"column":0},"end":{"line":11,"column":1}},
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"sourceType": "module",
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"interpreter": null,
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"body": [
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{
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"type": "ClassDeclaration",
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"start":0,"end":261,"loc":{"start":{"line":1,"column":0},"end":{"line":11,"column":1}},
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"id": {
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"type": "Identifier",
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"start":6,"end":7,"loc":{"start":{"line":1,"column":6},"end":{"line":1,"column":7},"identifierName":"C"},
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"name": "C"
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},
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"superClass": null,
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"body": {
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"type": "ClassBody",
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"start":8,"end":261,"loc":{"start":{"line":1,"column":8},"end":{"line":11,"column":1}},
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"body": [
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{
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"type": "ClassMethod",
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"start":14,"end":259,"loc":{"start":{"line":2,"column":4},"end":{"line":10,"column":33}},
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"static": false,
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"key": {
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"type": "Identifier",
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"start":14,"end":29,"loc":{"start":{"line":2,"column":4},"end":{"line":2,"column":19},"identifierName":"not_constructor"},
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"name": "not_constructor"
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},
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"computed": false,
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"kind": "method",
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"id": null,
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"generator": false,
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"async": false,
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"params": [
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{
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"type": "TSParameterProperty",
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"start":39,"end":49,"loc":{"start":{"line":3,"column":8},"end":{"line":3,"column":18}},
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"readonly": true,
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"parameter": {
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"type": "Identifier",
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"start":48,"end":49,"loc":{"start":{"line":3,"column":17},"end":{"line":3,"column":18},"identifierName":"r"},
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"name": "r"
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}
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},
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{
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"type": "TSParameterProperty",
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"start":59,"end":76,"loc":{"start":{"line":4,"column":8},"end":{"line":4,"column":25}},
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"accessibility": "public",
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"parameter": {
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"type": "Identifier",
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"start":66,"end":76,"loc":{"start":{"line":4,"column":15},"end":{"line":4,"column":25},"identifierName":"pu"},
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"name": "pu",
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"typeAnnotation": {
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"type": "TSTypeAnnotation",
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"start":68,"end":76,"loc":{"start":{"line":4,"column":17},"end":{"line":4,"column":25}},
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"typeAnnotation": {
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"type": "TSNumberKeyword",
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"start":70,"end":76,"loc":{"start":{"line":4,"column":19},"end":{"line":4,"column":25}}
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}
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}
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}
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},
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{
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"type": "TSParameterProperty",
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"start":86,"end":99,"loc":{"start":{"line":5,"column":8},"end":{"line":5,"column":21}},
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"accessibility": "protected",
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"parameter": {
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"type": "Identifier",
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"start":96,"end":99,"loc":{"start":{"line":5,"column":18},"end":{"line":5,"column":21},"identifierName":"po"},
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"name": "po",
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"optional": true
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}
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},
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{
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"type": "TSParameterProperty",
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"start":109,"end":128,"loc":{"start":{"line":6,"column":8},"end":{"line":6,"column":27}},
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"accessibility": "private",
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"parameter": {
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"type": "Identifier",
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"start":117,"end":128,"loc":{"start":{"line":6,"column":16},"end":{"line":6,"column":27},"identifierName":"pi"},
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"name": "pi",
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"optional": true,
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"typeAnnotation": {
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"type": "TSTypeAnnotation",
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"start":120,"end":128,"loc":{"start":{"line":6,"column":19},"end":{"line":6,"column":27}},
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"typeAnnotation": {
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"type": "TSNumberKeyword",
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"start":122,"end":128,"loc":{"start":{"line":6,"column":21},"end":{"line":6,"column":27}}
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}
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}
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}
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},
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{
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"type": "TSParameterProperty",
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"start":138,"end":157,"loc":{"start":{"line":7,"column":8},"end":{"line":7,"column":27}},
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"accessibility": "public",
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"readonly": true,
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"parameter": {
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"type": "Identifier",
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"start":154,"end":157,"loc":{"start":{"line":7,"column":24},"end":{"line":7,"column":27},"identifierName":"pur"},
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"name": "pur"
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}
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},
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{
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"type": "TSParameterProperty",
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"start":210,"end":224,"loc":{"start":{"line":9,"column":8},"end":{"line":9,"column":22}},
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"readonly": true,
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"parameter": {
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"type": "AssignmentPattern",
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"start":219,"end":224,"loc":{"start":{"line":9,"column":17},"end":{"line":9,"column":22}},
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"left": {
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"type": "Identifier",
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"start":219,"end":220,"loc":{"start":{"line":9,"column":17},"end":{"line":9,"column":18},"identifierName":"x"},
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"name": "x"
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},
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"right": {
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"type": "NumericLiteral",
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"start":223,"end":224,"loc":{"start":{"line":9,"column":21},"end":{"line":9,"column":22}},
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"extra": {
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"rawValue": 0,
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"raw": "0"
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},
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"value": 0
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}
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},
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"leadingComments": [
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{
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"type": "CommentLine",
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"value": " Also works on AssignmentPattern",
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"start":167,"end":201,"loc":{"start":{"line":8,"column":8},"end":{"line":8,"column":42}}
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}
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]
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},
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{
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"type": "TSParameterProperty",
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"start":234,"end":255,"loc":{"start":{"line":10,"column":8},"end":{"line":10,"column":29}},
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"accessibility": "public",
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"parameter": {
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"type": "AssignmentPattern",
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"start":241,"end":255,"loc":{"start":{"line":10,"column":15},"end":{"line":10,"column":29}},
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"left": {
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"type": "Identifier",
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"start":241,"end":251,"loc":{"start":{"line":10,"column":15},"end":{"line":10,"column":25},"identifierName":"y"},
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"name": "y",
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"optional": true,
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"typeAnnotation": {
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"type": "TSTypeAnnotation",
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"start":243,"end":251,"loc":{"start":{"line":10,"column":17},"end":{"line":10,"column":25}},
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"typeAnnotation": {
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"type": "TSNumberKeyword",
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"start":245,"end":251,"loc":{"start":{"line":10,"column":19},"end":{"line":10,"column":25}}
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}
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}
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},
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"right": {
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"type": "NumericLiteral",
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"start":254,"end":255,"loc":{"start":{"line":10,"column":28},"end":{"line":10,"column":29}},
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"extra": {
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"rawValue": 0,
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"raw": "0"
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},
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"value": 0
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}
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}
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}
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],
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"body": {
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"type": "BlockStatement",
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"start":257,"end":259,"loc":{"start":{"line":10,"column":31},"end":{"line":10,"column":33}},
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"body": [],
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"directives": []
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}
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}
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]
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}
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}
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],
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"directives": []
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},
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"comments": [
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{
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"type": "CommentLine",
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"value": " Also works on AssignmentPattern",
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"start":167,"end":201,"loc":{"start":{"line":8,"column":8},"end":{"line":8,"column":42}}
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}
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]
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}
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9
packages/babel-parser/test/fixtures/typescript/function/parameter-properties/input.ts
vendored
Normal file
9
packages/babel-parser/test/fixtures/typescript/function/parameter-properties/input.ts
vendored
Normal file
@ -0,0 +1,9 @@
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function foo(
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readonly r,
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public pu: number,
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protected po?,
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private pi?: number,
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public readonly pur,
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readonly x = 0,
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public y?: number = 0
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) {}
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165
packages/babel-parser/test/fixtures/typescript/function/parameter-properties/output.json
vendored
Normal file
165
packages/babel-parser/test/fixtures/typescript/function/parameter-properties/output.json
vendored
Normal file
@ -0,0 +1,165 @@
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{
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"type": "File",
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"start":0,"end":158,"loc":{"start":{"line":1,"column":0},"end":{"line":9,"column":4}},
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"errors": [
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (2:2)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (3:2)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (4:2)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (5:2)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (6:2)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (7:2)",
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"SyntaxError: A parameter property is only allowed in a constructor implementation. (8:2)"
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],
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"program": {
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"type": "Program",
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"start":0,"end":158,"loc":{"start":{"line":1,"column":0},"end":{"line":9,"column":4}},
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"sourceType": "module",
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"interpreter": null,
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"body": [
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{
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"type": "FunctionDeclaration",
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"start":0,"end":158,"loc":{"start":{"line":1,"column":0},"end":{"line":9,"column":4}},
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"id": {
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"type": "Identifier",
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"start":9,"end":12,"loc":{"start":{"line":1,"column":9},"end":{"line":1,"column":12},"identifierName":"foo"},
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"name": "foo"
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},
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"generator": false,
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"async": false,
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"params": [
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{
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"type": "TSParameterProperty",
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"start":16,"end":26,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":12}},
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"readonly": true,
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"parameter": {
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"type": "Identifier",
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"start":25,"end":26,"loc":{"start":{"line":2,"column":11},"end":{"line":2,"column":12},"identifierName":"r"},
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"name": "r"
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}
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},
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{
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"type": "TSParameterProperty",
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"start":30,"end":47,"loc":{"start":{"line":3,"column":2},"end":{"line":3,"column":19}},
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"accessibility": "public",
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"parameter": {
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"type": "Identifier",
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"start":37,"end":47,"loc":{"start":{"line":3,"column":9},"end":{"line":3,"column":19},"identifierName":"pu"},
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"name": "pu",
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"typeAnnotation": {
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"type": "TSTypeAnnotation",
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"start":39,"end":47,"loc":{"start":{"line":3,"column":11},"end":{"line":3,"column":19}},
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"typeAnnotation": {
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"type": "TSNumberKeyword",
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"start":41,"end":47,"loc":{"start":{"line":3,"column":13},"end":{"line":3,"column":19}}
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}
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}
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}
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},
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{
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"type": "TSParameterProperty",
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"start":51,"end":64,"loc":{"start":{"line":4,"column":2},"end":{"line":4,"column":15}},
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"accessibility": "protected",
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"parameter": {
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"type": "Identifier",
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"start":61,"end":64,"loc":{"start":{"line":4,"column":12},"end":{"line":4,"column":15},"identifierName":"po"},
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"name": "po",
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"optional": true
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}
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},
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{
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"type": "TSParameterProperty",
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"start":68,"end":87,"loc":{"start":{"line":5,"column":2},"end":{"line":5,"column":21}},
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"accessibility": "private",
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"parameter": {
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"type": "Identifier",
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"start":76,"end":87,"loc":{"start":{"line":5,"column":10},"end":{"line":5,"column":21},"identifierName":"pi"},
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"name": "pi",
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"optional": true,
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"typeAnnotation": {
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"type": "TSTypeAnnotation",
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"start":79,"end":87,"loc":{"start":{"line":5,"column":13},"end":{"line":5,"column":21}},
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"typeAnnotation": {
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"type": "TSNumberKeyword",
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"start":81,"end":87,"loc":{"start":{"line":5,"column":15},"end":{"line":5,"column":21}}
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}
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}
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}
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},
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{
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"type": "TSParameterProperty",
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"start":91,"end":110,"loc":{"start":{"line":6,"column":2},"end":{"line":6,"column":21}},
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"accessibility": "public",
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"readonly": true,
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"parameter": {
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"type": "Identifier",
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"start":107,"end":110,"loc":{"start":{"line":6,"column":18},"end":{"line":6,"column":21},"identifierName":"pur"},
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"name": "pur"
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}
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},
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{
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"type": "TSParameterProperty",
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"start":114,"end":128,"loc":{"start":{"line":7,"column":2},"end":{"line":7,"column":16}},
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"readonly": true,
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"parameter": {
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"type": "AssignmentPattern",
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"start":123,"end":128,"loc":{"start":{"line":7,"column":11},"end":{"line":7,"column":16}},
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"left": {
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"type": "Identifier",
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"start":123,"end":124,"loc":{"start":{"line":7,"column":11},"end":{"line":7,"column":12},"identifierName":"x"},
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"name": "x"
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},
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"right": {
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"type": "NumericLiteral",
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"start":127,"end":128,"loc":{"start":{"line":7,"column":15},"end":{"line":7,"column":16}},
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"extra": {
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"rawValue": 0,
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"raw": "0"
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},
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"value": 0
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}
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}
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},
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{
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"type": "TSParameterProperty",
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"start":132,"end":153,"loc":{"start":{"line":8,"column":2},"end":{"line":8,"column":23}},
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"accessibility": "public",
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"parameter": {
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"type": "AssignmentPattern",
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"start":139,"end":153,"loc":{"start":{"line":8,"column":9},"end":{"line":8,"column":23}},
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"left": {
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"type": "Identifier",
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"start":139,"end":149,"loc":{"start":{"line":8,"column":9},"end":{"line":8,"column":19},"identifierName":"y"},
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"name": "y",
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"optional": true,
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"typeAnnotation": {
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"type": "TSTypeAnnotation",
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"start":141,"end":149,"loc":{"start":{"line":8,"column":11},"end":{"line":8,"column":19}},
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"typeAnnotation": {
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"type": "TSNumberKeyword",
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"start":143,"end":149,"loc":{"start":{"line":8,"column":13},"end":{"line":8,"column":19}}
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}
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}
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},
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"right": {
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"type": "NumericLiteral",
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"start":152,"end":153,"loc":{"start":{"line":8,"column":22},"end":{"line":8,"column":23}},
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"extra": {
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"rawValue": 0,
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"raw": "0"
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},
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"value": 0
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}
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}
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}
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],
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"body": {
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"type": "BlockStatement",
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"start":156,"end":158,"loc":{"start":{"line":9,"column":2},"end":{"line":9,"column":4}},
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"body": [],
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"directives": []
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}
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}
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],
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"directives": []
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}
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}
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