"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.preparePartialBlock = exports.prepareProgram = exports.prepareBlock = exports.prepareRawBlock = exports.prepareMustache = exports.preparePath = exports.stripComment = exports.stripFlags = exports.id = exports.SourceLocation = void 0;
var exception_1 = __importDefault(require("./exception"));
function validateClose(open, close) {
    close = close.path ? close.path.original : close;
    if (open.path.original !== close) {
        var errorNode = { loc: open.path.loc };
        throw new exception_1.default(open.path.original + " doesn't match " + close, errorNode);
    }
}
function SourceLocation(source, locInfo) {
    this.source = source;
    this.start = {
        line: locInfo.first_line,
        column: locInfo.first_column
    };
    this.end = {
        line: locInfo.last_line,
        column: locInfo.last_column
    };
}
exports.SourceLocation = SourceLocation;
function id(token) {
    if (/^\[.*\]$/.test(token)) {
        return token.substring(1, token.length - 1);
    }
    else {
        return token;
    }
}
exports.id = id;
function stripFlags(open, close) {
    return {
        open: open.charAt(2) === '~',
        close: close.charAt(close.length - 3) === '~'
    };
}
exports.stripFlags = stripFlags;
function stripComment(comment) {
    return comment.replace(/^\{\{~?!-?-?/, '').replace(/-?-?~?\}\}$/, '');
}
exports.stripComment = stripComment;
function preparePath(data, parts, loc) {
    loc = this.locInfo(loc);
    var original = data ? '@' : '', dig = [], depth = 0;
    for (var i = 0, l = parts.length; i < l; i++) {
        var part = parts[i].part, 
        // If we have [] syntax then we do not treat path references as operators,
        // i.e. foo.[this] resolves to approximately context.foo['this']
        isLiteral = parts[i].original !== part;
        original += (parts[i].separator || '') + part;
        if (!isLiteral && (part === '..' || part === '.' || part === 'this')) {
            if (dig.length > 0) {
                throw new exception_1.default('Invalid path: ' + original, { loc: loc });
            }
            else if (part === '..') {
                depth++;
            }
        }
        else {
            dig.push(part);
        }
    }
    return {
        type: 'PathExpression',
        data: data,
        depth: depth,
        parts: dig,
        original: original,
        loc: loc
    };
}
exports.preparePath = preparePath;
function prepareMustache(path, params, hash, open, strip, locInfo) {
    // Must use charAt to support IE pre-10
    var escapeFlag = open.charAt(3) || open.charAt(2), escaped = escapeFlag !== '{' && escapeFlag !== '&';
    var decorator = /\*/.test(open);
    return {
        type: decorator ? 'Decorator' : 'MustacheStatement',
        path: path,
        params: params,
        hash: hash,
        escaped: escaped,
        strip: strip,
        loc: this.locInfo(locInfo)
    };
}
exports.prepareMustache = prepareMustache;
function prepareRawBlock(openRawBlock, contents, close, locInfo) {
    validateClose(openRawBlock, close);
    locInfo = this.locInfo(locInfo);
    var program = {
        type: 'Program',
        body: contents,
        strip: {},
        loc: locInfo
    };
    return {
        type: 'BlockStatement',
        path: openRawBlock.path,
        params: openRawBlock.params,
        hash: openRawBlock.hash,
        program: program,
        openStrip: {},
        inverseStrip: {},
        closeStrip: {},
        loc: locInfo
    };
}
exports.prepareRawBlock = prepareRawBlock;
function prepareBlock(openBlock, program, inverseAndProgram, close, inverted, locInfo) {
    if (close && close.path) {
        validateClose(openBlock, close);
    }
    var decorator = /\*/.test(openBlock.open);
    program.blockParams = openBlock.blockParams;
    var inverse, inverseStrip;
    if (inverseAndProgram) {
        if (decorator) {
            throw new exception_1.default('Unexpected inverse block on decorator', inverseAndProgram);
        }
        if (inverseAndProgram.chain) {
            inverseAndProgram.program.body[0].closeStrip = close.strip;
        }
        inverseStrip = inverseAndProgram.strip;
        inverse = inverseAndProgram.program;
    }
    if (inverted) {
        inverted = inverse;
        inverse = program;
        program = inverted;
    }
    return {
        type: decorator ? 'DecoratorBlock' : 'BlockStatement',
        path: openBlock.path,
        params: openBlock.params,
        hash: openBlock.hash,
        program: program,
        inverse: inverse,
        openStrip: openBlock.strip,
        inverseStrip: inverseStrip,
        closeStrip: close && close.strip,
        loc: this.locInfo(locInfo)
    };
}
exports.prepareBlock = prepareBlock;
function prepareProgram(statements, loc) {
    if (!loc && statements.length) {
        var firstLoc = statements[0].loc, lastLoc = statements[statements.length - 1].loc;
        /* istanbul ignore else */
        if (firstLoc && lastLoc) {
            loc = {
                source: firstLoc.source,
                start: {
                    line: firstLoc.start.line,
                    column: firstLoc.start.column
                },
                end: {
                    line: lastLoc.end.line,
                    column: lastLoc.end.column
                }
            };
        }
    }
    return {
        type: 'Program',
        body: statements,
        strip: {},
        loc: loc
    };
}
exports.prepareProgram = prepareProgram;
function preparePartialBlock(open, program, close, locInfo) {
    validateClose(open, close);
    return {
        type: 'PartialBlockStatement',
        name: open.path,
        params: open.params,
        hash: open.hash,
        program: program,
        openStrip: open.strip,
        closeStrip: close && close.strip,
        loc: this.locInfo(locInfo)
    };
}
exports.preparePartialBlock = preparePartialBlock;
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'').replace(/-?-?~?\\}\\}$/, '');\n}\n\nexport function preparePath(data, parts, loc) {\n  loc = this.locInfo(loc);\n\n  let original = data ? '@' : '',\n    dig = [],\n    depth = 0;\n\n  for (let i = 0, l = parts.length; i < l; i++) {\n    let part = parts[i].part,\n      // If we have [] syntax then we do not treat path references as operators,\n      // i.e. foo.[this] resolves to approximately context.foo['this']\n      isLiteral = parts[i].original !== part;\n    original += (parts[i].separator || '') + part;\n\n    if (!isLiteral && (part === '..' || part === '.' || part === 'this')) {\n      if (dig.length > 0) {\n        throw new Exception('Invalid path: ' + original, { loc });\n      } else if (part === '..') {\n        depth++;\n      }\n    } else {\n      dig.push(part);\n    }\n  }\n\n  return {\n    type: 'PathExpression',\n    data,\n    depth,\n    parts: dig,\n    original,\n    loc\n  };\n}\n\nexport function prepareMustache(path, params, hash, open, strip, locInfo) {\n  // Must use charAt to support IE pre-10\n  let escapeFlag = open.charAt(3) || open.charAt(2),\n    escaped = escapeFlag !== '{' && escapeFlag !== '&';\n\n  let decorator = /\\*/.test(open);\n  return {\n    type: decorator ? 'Decorator' : 'MustacheStatement',\n    path,\n    params,\n    hash,\n    escaped,\n    strip,\n    loc: this.locInfo(locInfo)\n  };\n}\n\nexport function prepareRawBlock(openRawBlock, contents, close, locInfo) {\n  validateClose(openRawBlock, close);\n\n  locInfo = this.locInfo(locInfo);\n  let program = {\n    type: 'Program',\n    body: contents,\n    strip: {},\n    loc: locInfo\n  };\n\n  return {\n    type: 'BlockStatement',\n    path: openRawBlock.path,\n    params: openRawBlock.params,\n    hash: openRawBlock.hash,\n    program,\n    openStrip: {},\n    inverseStrip: {},\n    closeStrip: {},\n    loc: locInfo\n  };\n}\n\nexport function prepareBlock(\n  openBlock,\n  program,\n  inverseAndProgram,\n  close,\n  inverted,\n  locInfo\n) {\n  if (close && close.path) {\n    validateClose(openBlock, close);\n  }\n\n  let decorator = /\\*/.test(openBlock.open);\n\n  program.blockParams = openBlock.blockParams;\n\n  let inverse, inverseStrip;\n\n  if (inverseAndProgram) {\n    if (decorator) {\n      throw new Exception(\n        'Unexpected inverse block on decorator',\n        inverseAndProgram\n      );\n    }\n\n    if (inverseAndProgram.chain) {\n      inverseAndProgram.program.body[0].closeStrip = close.strip;\n    }\n\n    inverseStrip = inverseAndProgram.strip;\n    inverse = inverseAndProgram.program;\n  }\n\n  if (inverted) {\n    inverted = inverse;\n    inverse = program;\n    program = inverted;\n  }\n\n  return {\n    type: decorator ? 'DecoratorBlock' : 'BlockStatement',\n    path: openBlock.path,\n    params: openBlock.params,\n    hash: openBlock.hash,\n    program,\n    inverse,\n    openStrip: openBlock.strip,\n    inverseStrip,\n    closeStrip: close && close.strip,\n    loc: this.locInfo(locInfo)\n  };\n}\n\nexport function prepareProgram(statements, loc) {\n  if (!loc && statements.length) {\n    const firstLoc = statements[0].loc,\n      lastLoc = statements[statements.length - 1].loc;\n\n    /* istanbul ignore else */\n    if (firstLoc && lastLoc) {\n      loc = {\n        source: firstLoc.source,\n        start: {\n          line: firstLoc.start.line,\n          column: firstLoc.start.column\n        },\n        end: {\n          line: lastLoc.end.line,\n          column: lastLoc.end.column\n        }\n      };\n    }\n  }\n\n  return {\n    type: 'Program',\n    body: statements,\n    strip: {},\n    loc: loc\n  };\n}\n\nexport function preparePartialBlock(open, program, close, locInfo) {\n  validateClose(open, close);\n\n  return {\n    type: 'PartialBlockStatement',\n    name: open.path,\n    params: open.params,\n    hash: open.hash,\n    program,\n    openStrip: open.strip,\n    closeStrip: close && close.strip,\n    loc: this.locInfo(locInfo)\n  };\n}\n"]}