7df9d5af12
It is now part of the normal constraints. Added a special workaround for functions, since otherwise the output is a bit redundant and quite confusing. Also, constraints are now processed in order of complexity. This does not affect type safety. It uses a bit more CPU. But it makes the output that much easier to read. Also, removes the weird FunctionInstance hack. Instead, the more industry standard way of annotation the types on the function call is used. As always, this requires some hackyness for Subscriptable. Also, adds a few comments to the type unification to help with debugging. Also, prints out the new constraints that are received.
310 lines
6.4 KiB
Markdown
310 lines
6.4 KiB
Markdown
# runtime_extract_value_literal
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As a developer
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I want to extract a $TYPE value
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In order get the result I calculated with my phasm code
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```py
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@exported
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def testEntry() -> $TYPE:
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return $VAL0
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```
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```py
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expect(VAL0)
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```
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# runtime_extract_value_round_trip
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As a developer
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I want to extract a $TYPE value that I've input
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In order let the code select a value that I've predefined
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```py
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@exported
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def testEntry(x: $TYPE) -> $TYPE:
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return x
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```
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```py
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expect(VAL0, given=[VAL0])
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```
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# module_constant_def_ok
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As a developer
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I want to define $TYPE module constants
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In order to make hardcoded values more visible
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and to make it easier to change hardcoded values
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```py
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CONSTANT: $TYPE = $VAL0
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@exported
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def testEntry() -> i32:
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return 9
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```
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```py
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expect(9)
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```
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# module_constant_def_bad
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As a developer
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I want to receive a type error on an invalid assignment on a $TYPE module constant
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In order to make debugging easier
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```py
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CONSTANT: (u32, ) = $VAL0
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```
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```py
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if TYPE_NAME.startswith('tuple_') or TYPE_NAME.startswith('static_array_') or TYPE_NAME.startswith('dynamic_array_'):
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expect_type_error('Tuple element count mismatch')
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elif TYPE_NAME == 'bytes':
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expect_type_error('Cannot convert from literal bytes')
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elif TYPE_NAME == 'f32' or TYPE_NAME == 'f64':
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expect_type_error('Cannot convert from literal float')
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elif TYPE_NAME == 'i32' or TYPE_NAME == 'i64' or TYPE_NAME == 'u32' or TYPE_NAME == 'u64':
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expect_type_error('Cannot convert from literal integer')
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else:
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expect_type_error('Not the same type')
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```
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# function_result_is_literal_ok
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As a developer
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I want to use return a literal from a function
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In order to define constants in a more dynamic way
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```py
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def drop_arg_return_9(x: $TYPE) -> i32:
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return 9
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def constant() -> $TYPE:
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return $VAL0
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@exported
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def testEntry() -> i32:
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return drop_arg_return_9(constant())
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```
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```py
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expect(9)
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```
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# function_result_is_literal_bad
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As a developer
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I want to receive a type error when returning a $TYPE literal for a function that doesn't return that type
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In order to make debugging easier
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```py
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def drop_arg_return_9(x: (u32, )) -> i32:
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return 9
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def constant() -> (u32, ):
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return $VAL0
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@exported
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def testEntry() -> i32:
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return drop_arg_return_9(constant())
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```
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```py
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if TYPE_NAME.startswith('tuple_') or TYPE_NAME.startswith('static_array_') or TYPE_NAME.startswith('dynamic_array_'):
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expect_type_error('Tuple element count mismatch')
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elif TYPE_NAME.startswith('struct_'):
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expect_type_error('Not the same type')
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elif TYPE_NAME == 'bytes':
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expect_type_error('Cannot convert from literal bytes')
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elif TYPE_NAME == 'f32' or TYPE_NAME == 'f64':
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expect_type_error('Cannot convert from literal float')
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elif TYPE_NAME == 'i32' or TYPE_NAME == 'i64' or TYPE_NAME == 'u32' or TYPE_NAME == 'u64':
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expect_type_error('Cannot convert from literal integer')
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else:
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expect_type_error('Not the same type')
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```
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# function_result_is_module_constant_ok
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As a developer
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I want to use return a $TYPE module constant from a function
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In order to use my module constants in return statements
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```py
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CONSTANT: $TYPE = $VAL0
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def helper(x: $TYPE) -> i32:
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return 9
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def constant() -> $TYPE:
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return CONSTANT
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@exported
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def testEntry() -> i32:
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return helper(constant())
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```
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```py
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expect(9)
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```
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# function_result_is_module_constant_bad
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As a developer
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I want to receive a type error when returning a $TYPE module constant for a function that doesn't return that type
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In order to make debugging easier
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```py
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CONSTANT: $TYPE = $VAL0
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def drop_arg_return_9(x: (u32, )) -> i32:
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return 9
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def constant() -> (u32, ):
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return CONSTANT
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@exported
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def testEntry() -> i32:
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return drop_arg_return_9(constant())
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```
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```py
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expect_type_error('Not the same type')
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```
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# function_result_is_arg_ok
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As a developer
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I want to use return a $TYPE function argument
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In order to make it possible to select a value using a function
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```py
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CONSTANT: $TYPE = $VAL0
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def drop_arg_return_9(x: $TYPE) -> i32:
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return 9
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def select(x: $TYPE) -> $TYPE:
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return x
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@exported
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def testEntry() -> i32:
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return drop_arg_return_9(select(CONSTANT))
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```
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```py
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expect(9)
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```
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# function_result_is_arg_bad
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As a developer
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I want to receive a type error when returning a $TYPE argument for a function that doesn't return that type
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In order to make debugging easier
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```py
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def drop_arg_return_9(x: (u32, )) -> i32:
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return 9
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def select(x: $TYPE) -> (u32, ):
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return x
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```
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```py
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expect_type_error('Not the same type')
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```
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# function_arg_literal_ok
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As a developer
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I want to use a $TYPE literal by passing it to a function
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In order to use a pre-existing function with the values I specify
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```py
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def helper(x: $TYPE) -> i32:
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return 9
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@exported
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def testEntry() -> i32:
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return helper($VAL0)
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```
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```py
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expect(9)
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```
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# function_arg_literal_bad
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As a developer
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I want to receive a type error when passing a $TYPE literal to a function that does not accept it
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In order to make debugging easier
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```py
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def helper(x: (u32, )) -> i32:
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return 9
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@exported
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def testEntry() -> i32:
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return helper($VAL0)
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```
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```py
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if TYPE_NAME.startswith('tuple_') or TYPE_NAME.startswith('static_array_') or TYPE_NAME.startswith('dynamic_array_'):
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expect_type_error('Tuple element count mismatch')
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elif TYPE_NAME.startswith('struct_'):
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expect_type_error('Not the same type')
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elif TYPE_NAME == 'bytes':
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expect_type_error('Cannot convert from literal bytes')
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elif TYPE_NAME == 'f32' or TYPE_NAME == 'f64':
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expect_type_error('Cannot convert from literal float')
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elif TYPE_NAME == 'i32' or TYPE_NAME == 'i64' or TYPE_NAME == 'u32' or TYPE_NAME == 'u64':
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expect_type_error('Cannot convert from literal integer')
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else:
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expect_type_error('Not the same type')
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```
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# function_arg_module_constant_def_ok
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As a developer
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I want to use a $TYPE module constant by passing it to a function
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In order to use my defined value with a pre-existing function
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```py
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CONSTANT: $TYPE = $VAL0
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def helper(x: $TYPE) -> i32:
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return 9
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@exported
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def testEntry() -> i32:
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return helper(CONSTANT)
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```
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```py
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expect(9)
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```
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# function_arg_module_constant_def_bad
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As a developer
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I want to receive a type error when passing a $TYPE module constant to a function that does not accept it
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In order to make debugging easier
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```py
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CONSTANT: $TYPE = $VAL0
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def helper(x: (u32, )) -> i32:
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return 9
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@exported
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def testEntry() -> i32:
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return helper(CONSTANT)
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```
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```py
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expect_type_error('Not the same type')
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```
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