Comments (3)
PWhiddy
commented on May 22, 2024
This means support for branching (if/else) statements whose conditions depend on variables defined in terms of time/x/y/z/p
from shader-park-core.
PWhiddy
commented on May 22, 2024
Example code tree to study:
// Life, Universe, and Everything
var answer = 6 * 7;
let x = 0.4;
for (let i=0; i<7; i++) {
if (x-i<4){
x += 0.1;
} else if (3<5) {
x = 0.3;
} else {
x = 3;
}
}
produces:
{
"type": "Program",
"body": [
{
"type": "VariableDeclaration",
"declarations": [
{
"type": "VariableDeclarator",
"id": {
"type": "Identifier",
"name": "answer"
},
"init": {
"type": "BinaryExpression",
"operator": "*",
"left": {
"type": "Literal",
"value": 6,
"raw": "6"
},
"right": {
"type": "Literal",
"value": 7,
"raw": "7"
}
}
}
],
"kind": "var"
},
{
"type": "VariableDeclaration",
"declarations": [
{
"type": "VariableDeclarator",
"id": {
"type": "Identifier",
"name": "x"
},
"init": {
"type": "Literal",
"value": 0.4,
"raw": "0.4"
}
}
],
"kind": "let"
},
{
"type": "ForStatement",
"init": {
"type": "VariableDeclaration",
"declarations": [
{
"type": "VariableDeclarator",
"id": {
"type": "Identifier",
"name": "i"
},
"init": {
"type": "Literal",
"value": 0,
"raw": "0"
}
}
],
"kind": "let"
},
"test": {
"type": "BinaryExpression",
"operator": "<",
"left": {
"type": "Identifier",
"name": "i"
},
"right": {
"type": "Literal",
"value": 7,
"raw": "7"
}
},
"update": {
"type": "UpdateExpression",
"operator": "++",
"argument": {
"type": "Identifier",
"name": "i"
},
"prefix": false
},
"body": {
"type": "BlockStatement",
"body": [
{
"type": "IfStatement",
"test": {
"type": "BinaryExpression",
"operator": "<",
"left": {
"type": "BinaryExpression",
"operator": "-",
"left": {
"type": "Identifier",
"name": "x"
},
"right": {
"type": "Identifier",
"name": "i"
}
},
"right": {
"type": "Literal",
"value": 4,
"raw": "4"
}
},
"consequent": {
"type": "BlockStatement",
"body": [
{
"type": "ExpressionStatement",
"expression": {
"type": "AssignmentExpression",
"operator": "+=",
"left": {
"type": "Identifier",
"name": "x"
},
"right": {
"type": "Literal",
"value": 0.1,
"raw": "0.1"
}
}
}
]
},
"alternate": {
"type": "IfStatement",
"test": {
"type": "BinaryExpression",
"operator": "<",
"left": {
"type": "Literal",
"value": 3,
"raw": "3"
},
"right": {
"type": "Literal",
"value": 5,
"raw": "5"
}
},
"consequent": {
"type": "BlockStatement",
"body": [
{
"type": "ExpressionStatement",
"expression": {
"type": "AssignmentExpression",
"operator": "=",
"left": {
"type": "Identifier",
"name": "x"
},
"right": {
"type": "Literal",
"value": 0.3,
"raw": "0.3"
}
}
}
]
},
"alternate": {
"type": "BlockStatement",
"body": [
{
"type": "ExpressionStatement",
"expression": {
"type": "AssignmentExpression",
"operator": "=",
"left": {
"type": "Identifier",
"name": "x"
},
"right": {
"type": "Literal",
"value": 3,
"raw": "3"
}
}
}
]
}
}
}
]
}
}
],
"sourceType": "script"
}
from shader-park-core.
PWhiddy
commented on May 22, 2024
first need to convert comparison ops to function calls (>, <, ==)
from shader-park-core.
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from shader-park-core.