ed11ef557a
Previously, the way repeat rules were expanded, the auxiliary rule always needed to be reduced, even if the repeating content was empty. This caused problems in parse states where some items contained the repeat rule and some did not. To make those cases work, the repeat rule had to explicitly be marked as optional. With this change, that is no longer necessary.
142 lines
4 KiB
Text
142 lines
4 KiB
Text
==========================================
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parses function calls
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==========================================
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x.theMethod(5, 6);
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---
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(expression_statement (function_call
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(property_access (identifier) (identifier))
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(number) (number)))
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==========================================
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parses constructor calls
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==========================================
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var x = new Node(5, new Node(3, null));
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---
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(var_declaration
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(identifier)
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(constructor_call (function_call (identifier)
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(number)
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(constructor_call (function_call (identifier)
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(number)
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(null))))))
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==========================================
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parses property access with dot notation
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==========================================
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object.property = "the-value";
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print(object.property);
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---
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(program
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(expression_statement (assignment
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(property_access (identifier) (identifier))
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(string)))
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(expression_statement (function_call
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(identifier)
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(property_access (identifier) (identifier)))))
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==========================================
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parses property access across lines
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==========================================
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object
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.someProperty
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.otherProperty
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---
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(expression_statement
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(property_access
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(property_access (identifier) (identifier))
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(identifier)))
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===========================================
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parses dynamic property access
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==========================================
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object[propertName()] = propertyValue();
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print(object[propertyName()]);
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---
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(program
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(expression_statement (assignment
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(property_access (identifier) (function_call (identifier)))
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(function_call (identifier))))
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(expression_statement (function_call
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(identifier)
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(property_access (identifier) (function_call (identifier))))))
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==========================================
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parses ternary expressions
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==========================================
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print(isDone() ? stuff : otherStuff);
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---
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(expression_statement
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(function_call
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(identifier)
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(ternary (function_call (identifier)) (identifier) (identifier))))
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==========================================
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parses mathematical operators
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==========================================
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-a + b * c - d / +e
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---
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(expression_statement
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(math_op
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(math_op (identifier))
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(math_op
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(math_op (identifier) (identifier))
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(math_op (identifier) (math_op (identifier))))))
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==========================================
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parses boolean operators
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=========================================
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!a || !(b && c)
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---
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(expression_statement
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(bool_op
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(bool_op (identifier))
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(bool_op
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(expression (bool_op (identifier) (identifier))))))
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===========================================
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parses the type operators
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===========================================
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print((x instanceof Array) || (typeof x == "string"))
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---
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(expression_statement (function_call (identifier)
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(bool_op
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(expression (instanceof_expression (identifier) (identifier)))
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(expression (typeof_expression (bool_op (identifier) (string)))))))
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============================================
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parses the 'in' operator
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===========================================
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print(x in y)
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---
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(expression_statement (function_call
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(identifier)
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(in_expression (identifier) (identifier))))
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============================================
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parses assignment operators
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============================================
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x += 1;
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x -= 1;
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x *= 2;
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x /= 2;
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---
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(program
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(expression_statement (assignment (identifier) (number)))
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(expression_statement (assignment (identifier) (number)))
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(expression_statement (assignment (identifier) (number)))
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(expression_statement (assignment (identifier) (number))))
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============================================
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parses property access and operators
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============================================
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print(x.y.z && a.b.c)
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---
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(expression_statement (function_call (identifier)
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(bool_op
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(property_access (property_access (identifier) (identifier)) (identifier))
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(property_access (property_access (identifier) (identifier)) (identifier)))))
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