const float d[3] = float[](5.0, 7.2, 1.1);

[dy]

var parse = require('glsl-parser/direct');
var tokenize = require('glsl-tokenizer/string');

parse(tokenize(
    'const float d[3] = float[](5.0, 7.2, 1.1);'
));

//Error: unexpected at line 1

Though it is valid GLSL syntax.

[AndrewRayCode]

Hmm, I'm not sure what version of GLSL this parser is supposed to support, but if it's WebGL GLSL, which is glsl 1.0, then this isn't valid syntax. @chrisdickinson do you have a thought on which version of GLSL this parser is built for?

Under the hood, this is happening because:

• It parses float[](5.0, 7.2, 1.1); (the right side of the assignment operator) as an expression
• {The parser treats [ as an infix expression](https://github.com/stackgl/glsl-parser/blob/master/lib/expr.js#L60-L65)

  infix('[', 80, function(left) {
  this.children = [left, expression(0)]
  this.type = 'binary'
  advance(']')
  return this
  }

  • The left will be float, and then it expects an expression() inside the parens.

This parser doesn't seem to follow the GLSL language grammar spec, so it's hard to compare the top down operator precedence setup with what the spec expects. For example, is it correct that [ is an infix node in this case (infixed between float and expression)? I'm not sure

I tried making the infix call into a unary type instead, but the printer for the compiler doesn't print the closing [ correctly.