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App.svelte
Component.svelte
<script>
import Component from "./Component.svelte";
</script>

<Component let:a={b}>
<h1>{b}</h1>
</Component>
import "svelte/internal/disclose-version";
import "svelte/internal/flags/legacy";
import * as $ from "svelte/internal/client";
import Component from "./Component.svelte";

var root_1 = $.template(`<h1> </h1>`);

export default function App($$anchor) {
Component($$anchor, {
children: $.invalid_default_snippet,
$$slots: {
default: ($$anchor, $$slotProps) => {
const b = $.derived_safe_equal(() => $$slotProps.a);
var h1 = root_1();
var text = $.child(h1, true);

$.reset(h1);
$.template_effect(() => $.set_text(text, $.get(b)));
$.append($$anchor, h1);
}
}
});
}
result = svelte.compile(source, {
generate: ,
});
/* Add a <style> tag to see the CSS output */
		
			
				
  • Root {
    • css: null
    • js: []
    • start: 65
    • end: 113
    • type: "Root"
    • fragment: Fragment {...}
      • type: "Fragment"
      • nodes: [...] (2)
        • Text {...}
          • type: "Text"
          • start: 63
          • end: 65
          • raw: "\n\n"
          • data: "\n\n"
          }
        • Component {...}
          • type: "Component"
          • start: 65
          • end: 113
          • name: "Component"
          • attributes: [...] (1)
            • LetDirective {...}
              • start: 76
              • end: 85
              • type: "LetDirective"
              • name: "a"
              • expression: Identifier {...}
                • type: "Identifier"
                • start: 83
                • end: 84
                • loc: {...}
                  • start: {...}
                    • line: 5
                    • column: 18
                    }
                  • end: {...}
                    • line: 5
                    • column: 19
                    }
                  }
                • name: "b"
                }
              • modifiers: []
              }
            ]
          • fragment: Fragment {...}
            • type: "Fragment"
            • nodes: [...] (3)
              • Text {...}
                • type: "Text"
                • start: 86
                • end: 88
                • raw: "\n\t"
                • data: "\n\t"
                }
              • RegularElement {...}
                • type: "RegularElement"
                • start: 88
                • end: 100
                • name: "h1"
                • attributes: []
                • fragment: Fragment {...}
                  • type: "Fragment"
                  • nodes: [...] (1)
                    • ExpressionTag {...}
                      • type: "ExpressionTag"
                      • start: 92
                      • end: 95
                      • expression: Identifier {...}
                        • type: "Identifier"
                        • start: 93
                        • end: 94
                        • loc: {...}
                          • start: {...}
                            • line: 6
                            • column: 6
                            }
                          • end: {...}
                            • line: 6
                            • column: 7
                            }
                          }
                        • name: "b"
                        }
                      }
                    ]
                  }
                }
              • Text {...}
                • type: "Text"
                • start: 100
                • end: 101
                • raw: "\n"
                • data: "\n"
                }
              ]
            }
          }
        ]
      }
    • options: null
    • instance: Script {
      • type: "Script"
      • start: 0
      • end: 63
      • context: "default"
      • content: Program {...}
        • type: "Program"
        • start: 8
        • end: 54
        • loc: {...}
          • start: {...}
            • line: 1
            • column: 0
            }
          • end: {...}
            • line: 3
            • column: 0
            }
          }
        • body: [...] (1)
          • ImportDeclaration {...}
            • type: "ImportDeclaration"
            • start: 10
            • end: 53
            • loc: {...}
              • start: {...}
                • line: 2
                • column: 1
                }
              • end: {...}
                • line: 2
                • column: 44
                }
              }
            • specifiers: [...] (1)
              • ImportDefaultSpecifier {...}
                • type: "ImportDefaultSpecifier"
                • start: 17
                • end: 26
                • loc: {...}
                  • start: {...}
                    • line: 2
                    • column: 8
                    }
                  • end: {...}
                    • line: 2
                    • column: 17
                    }
                  }
                • local: Identifier {...}
                  • type: "Identifier"
                  • start: 17
                  • end: 26
                  • loc: {...}
                    • start: {...}
                      • line: 2
                      • column: 8
                      }
                    • end: {...}
                      • line: 2
                      • column: 17
                      }
                    }
                  • name: "Component"
                  }
                }
              ]
            • source: Literal {...}
              • type: "Literal"
              • start: 32
              • end: 52
              • loc: {...}
                • start: {...}
                  • line: 2
                  • column: 23
                  }
                • end: {...}
                  • line: 2
                  • column: 43
                  }
                }
              • value: "./Component.svelte"
              • raw: "\"./Component.svelte\""
              }
            }
          ]
        • sourceType: "module"
        }
      • attributes: []
      }
    }
The AST is not public API and may change at any point in time