150 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			150 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
"use strict";
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Object.defineProperty(exports, "__esModule", {
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  value: true
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});
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exports._getTypeAnnotation = _getTypeAnnotation;
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exports.baseTypeStrictlyMatches = baseTypeStrictlyMatches;
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exports.couldBeBaseType = couldBeBaseType;
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exports.getTypeAnnotation = getTypeAnnotation;
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exports.isBaseType = isBaseType;
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exports.isGenericType = isGenericType;
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var inferers = require("./inferers.js");
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var _t = require("@babel/types");
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const {
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  anyTypeAnnotation,
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  isAnyTypeAnnotation,
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  isArrayTypeAnnotation,
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  isBooleanTypeAnnotation,
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  isEmptyTypeAnnotation,
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  isFlowBaseAnnotation,
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  isGenericTypeAnnotation,
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  isIdentifier,
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  isMixedTypeAnnotation,
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  isNumberTypeAnnotation,
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  isStringTypeAnnotation,
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  isTSArrayType,
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  isTSTypeAnnotation,
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  isTSTypeReference,
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  isTupleTypeAnnotation,
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  isTypeAnnotation,
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  isUnionTypeAnnotation,
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  isVoidTypeAnnotation,
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  stringTypeAnnotation,
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  voidTypeAnnotation
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} = _t;
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function getTypeAnnotation() {
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  let type = this.getData("typeAnnotation");
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  if (type != null) {
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    return type;
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  }
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  type = _getTypeAnnotation.call(this) || anyTypeAnnotation();
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  if (isTypeAnnotation(type) || isTSTypeAnnotation(type)) {
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    type = type.typeAnnotation;
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  }
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  this.setData("typeAnnotation", type);
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  return type;
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}
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const typeAnnotationInferringNodes = new WeakSet();
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function _getTypeAnnotation() {
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  const node = this.node;
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  if (!node) {
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    if (this.key === "init" && this.parentPath.isVariableDeclarator()) {
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      const declar = this.parentPath.parentPath;
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      const declarParent = declar.parentPath;
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      if (declar.key === "left" && declarParent.isForInStatement()) {
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        return stringTypeAnnotation();
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      }
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      if (declar.key === "left" && declarParent.isForOfStatement()) {
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        return anyTypeAnnotation();
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      }
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      return voidTypeAnnotation();
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    } else {
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      return;
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    }
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  }
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  if (node.typeAnnotation) {
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    return node.typeAnnotation;
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  }
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  if (typeAnnotationInferringNodes.has(node)) {
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    return;
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  }
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  typeAnnotationInferringNodes.add(node);
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  try {
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    var _inferer;
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    let inferer = inferers[node.type];
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    if (inferer) {
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      return inferer.call(this, node);
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    }
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    inferer = inferers[this.parentPath.type];
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    if ((_inferer = inferer) != null && _inferer.validParent) {
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      return this.parentPath.getTypeAnnotation();
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    }
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  } finally {
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    typeAnnotationInferringNodes.delete(node);
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  }
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}
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function isBaseType(baseName, soft) {
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  return _isBaseType(baseName, this.getTypeAnnotation(), soft);
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}
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function _isBaseType(baseName, type, soft) {
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  if (baseName === "string") {
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    return isStringTypeAnnotation(type);
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  } else if (baseName === "number") {
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    return isNumberTypeAnnotation(type);
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  } else if (baseName === "boolean") {
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    return isBooleanTypeAnnotation(type);
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  } else if (baseName === "any") {
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    return isAnyTypeAnnotation(type);
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  } else if (baseName === "mixed") {
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    return isMixedTypeAnnotation(type);
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  } else if (baseName === "empty") {
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    return isEmptyTypeAnnotation(type);
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  } else if (baseName === "void") {
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    return isVoidTypeAnnotation(type);
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  } else {
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    if (soft) {
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      return false;
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    } else {
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      throw new Error(`Unknown base type ${baseName}`);
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    }
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  }
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}
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function couldBeBaseType(name) {
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  const type = this.getTypeAnnotation();
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  if (isAnyTypeAnnotation(type)) return true;
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  if (isUnionTypeAnnotation(type)) {
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    for (const type2 of type.types) {
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      if (isAnyTypeAnnotation(type2) || _isBaseType(name, type2, true)) {
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        return true;
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      }
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    }
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    return false;
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  } else {
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    return _isBaseType(name, type, true);
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  }
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}
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function baseTypeStrictlyMatches(rightArg) {
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  const left = this.getTypeAnnotation();
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  const right = rightArg.getTypeAnnotation();
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  if (!isAnyTypeAnnotation(left) && isFlowBaseAnnotation(left)) {
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    return right.type === left.type;
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  }
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  return false;
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}
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function isGenericType(genericName) {
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  const type = this.getTypeAnnotation();
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  if (genericName === "Array") {
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    if (isTSArrayType(type) || isArrayTypeAnnotation(type) || isTupleTypeAnnotation(type)) {
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      return true;
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    }
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  }
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  return isGenericTypeAnnotation(type) && isIdentifier(type.id, {
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    name: genericName
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  }) || isTSTypeReference(type) && isIdentifier(type.typeName, {
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    name: genericName
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  });
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}
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//# sourceMappingURL=index.js.map
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