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import Exception from "../exception";
var AST = {
ProgramNode: function(statements, inverseStrip, inverse) {
this.type = "program";
this.statements = statements;
this.strip = {};
if(inverse) {
this.inverse = new AST.ProgramNode(inverse, inverseStrip);
this.strip.right = inverseStrip.left;
} else if (inverseStrip) {
this.strip.left = inverseStrip.right;
}
},
MustacheNode: function(rawParams, hash, open, strip) {
this.type = "mustache";
this.hash = hash;
this.strip = strip;
// Must use charAt to support IE pre-10
var escapeFlag = open.charAt(3) || open.charAt(2);
this.escaped = escapeFlag !== '{' && escapeFlag !== '&';
var id = this.id = rawParams[0];
var params = this.params = rawParams.slice(1);
// a mustache is an eligible helper if:
// * its id is simple (a single part, not `this` or `..`)
var eligibleHelper = this.eligibleHelper = id.isSimple;
// a mustache is definitely a helper if:
// * it is an eligible helper, and
// * it has at least one parameter or hash segment
this.isHelper = eligibleHelper && (params.length || hash);
// if a mustache is an eligible helper but not a definite
// helper, it is ambiguous, and will be resolved in a later
// pass or at runtime.
},
PartialNode: function(partialName, context, strip) {
this.type = "partial";
this.partialName = partialName;
this.context = context;
this.strip = strip;
},
BlockNode: function(mustache, program, inverse, close) {
if(mustache.id.original !== close.path.original) {
throw new Exception(mustache.id.original + " doesn't match " + close.path.original);
}
this.type = "block";
this.mustache = mustache;
this.program = program;
this.inverse = inverse;
this.strip = {
left: mustache.strip.left,
right: close.strip.right
};
(program || inverse).strip.left = mustache.strip.right;
(inverse || program).strip.right = close.strip.left;
if (inverse && !program) {
this.isInverse = true;
}
},
ContentNode: function(string) {
this.type = "content";
this.string = string;
},
HashNode: function(pairs) {
this.type = "hash";
this.pairs = pairs;
},
IdNode: function(parts) {
this.type = "ID";
var original = "",
dig = [],
depth = 0;
for(var i=0,l=parts.length; i<l; i++) {
var part = parts[i].part;
original += (parts[i].separator || '') + part;
if (part === ".." || part === "." || part === "this") {
if (dig.length > 0) { throw new Exception("Invalid path: " + original); }
else if (part === "..") { depth++; }
else { this.isScoped = true; }
}
else { dig.push(part); }
}
this.original = original;
this.parts = dig;
this.string = dig.join('.');
this.depth = depth;
// an ID is simple if it only has one part, and that part is not
// `..` or `this`.
this.isSimple = parts.length === 1 && !this.isScoped && depth === 0;
this.stringModeValue = this.string;
},
PartialNameNode: function(name) {
this.type = "PARTIAL_NAME";
this.name = name.original;
},
DataNode: function(id) {
this.type = "DATA";
this.id = id;
},
StringNode: function(string) {
this.type = "STRING";
this.original =
this.string =
this.stringModeValue = string;
},
IntegerNode: function(integer) {
this.type = "INTEGER";
this.original =
this.integer = integer;
this.stringModeValue = Number(integer);
},
BooleanNode: function(bool) {
this.type = "BOOLEAN";
this.bool = bool;
this.stringModeValue = bool === "true";
},
CommentNode: function(comment) {
this.type = "comment";
this.comment = comment;
}
};
// Must be exported as an object rather than the root of the module as the jison lexer
// most modify the object to operate properly.
export default AST;
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